Merge pull request #128 from anhkha2003/master

Improve UI for mobile

.github/workflows/init.yml

@@ -0,0 +1,33 @@
+name: Lint
+
+on:
+  # Trigger the workflow on push or pull request,
+  # but only for the main branch
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  run-linters:
+    name: Run linters
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: 3.8
+
+      - name: Install Python dependencies
+        run: pip install black
+
+      - name: Run linters
+        uses: wearerequired/lint-action@v2
+        with:
+          black: true

.pre-commit-config.yaml

@@ -0,0 +1,17 @@
+repos:
+  - repo: https://github.com/rtts/djhtml
+    rev: 'v1.5.2'  # replace with the latest tag on GitHub
+    hooks:
+      - id: djhtml
+        entry: djhtml -i -t 2
+        files: templates/.
+      - id: djcss
+        types: [scss]
+  - repo: https://github.com/psf/black
+    rev: 22.12.0
+    hooks:
+      - id: black
+  - repo: https://github.com/hadialqattan/pycln
+    rev: 'v2.3.0'
+    hooks:
+      - id: pycln

502.html

@@ -49,7 +49,7 @@
         <br>
         <div class="popup">
             <div>
-                <img class="logo" src="logo.png" alt="LQDOJ">
+                <img class="logo" src="logo.svg" alt="LQDOJ">
             </div>
             <h1 style="width: 100%;">Oops, LQDOJ is down now.</h1>
         </div>

README.md

@@ -17,11 +17,12 @@ Supported languages:
 - Assembly (x64)
 - AWK
 - C
-- C++03 / C++11 / C++14 / C++17
+- C++03 / C++11 / C++14 / C++17 / C++20
 - Java 11
 - Pascal
 - Perl
 - Python 2 / Python 3
+- PyPy 2 / PyPy 3
 
 Support plagiarism detection via [Stanford MOSS](https://theory.stanford.edu/~aiken/moss/).
 
@@ -30,6 +31,197 @@ Support plagiarism detection via [Stanford MOSS](https://theory.stanford.edu/~ai
 Most of the setup are the same as DMOJ installations. You can view the installation guide of DMOJ here: https://docs.dmoj.ca/#/site/installation.
 There is one minor change: Instead of `git clone https://github.com/DMOJ/site.git`, you clone this repo `git clone https://github.com/LQDJudge/online-judge.git`.
 
+
+- Bước 1: cài các thư viện cần thiết
+    - $ ở đây nghĩa là sudo. Ví dụ dòng đầu nghĩa là chạy lệnh `sudo apt update`
+
+```jsx
+$ apt update
+$ apt install git gcc g++ make python3-dev python3-pip libxml2-dev libxslt1-dev zlib1g-dev gettext curl redis-server
+$ curl -sL https://deb.nodesource.com/setup_18.x | sudo -E bash -
+$ apt install nodejs
+$ npm install -g sass postcss-cli postcss autoprefixer
+```
+
+- Bước 2: tạo DB
+    - Server đang dùng MariaDB ≥ 10.5, các bạn cũng có thể dùng Mysql nếu bị conflict
+    - Nếu các bạn chạy lệnh dưới này xong mà version mariadb bị cũ (< 10.5) thì có thể tra google cách cài MariaDB mới nhất (10.5 hoặc 10.6).
+    - Các bạn có thể thấy version MariaDB bằng cách gõ lệnh `sudo mysql` (Ctrl + C để quit)
+
+```jsx
+$ apt update
+$ apt install mariadb-server libmysqlclient-dev
+```
+
+- Bước 3: tạo table trong DB
+    - Các bạn có thể thay tên table và password
+
+```jsx
+$ sudo mysql
+mariadb> CREATE DATABASE dmoj DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_general_ci;
+mariadb> GRANT ALL PRIVILEGES ON dmoj.* TO 'dmoj'@'localhost' IDENTIFIED BY '<password>';
+mariadb> exit
+```
+
+- Bước 4: Cài đặt môi trường ảo (virtual env) và pull code
+    - Nếu `pip3 install mysqlclient` bị lỗi thì thử chạy `pip3 install mysqlclient==2.1.1`
+
+```jsx
+$ python3 -m venv dmojsite
+$ . dmojsite/bin/activate
+
+(dmojsite) $ git clone https://github.com/LQDJudge/online-judge.git
+(dmojsite) $ cd online-judge
+(dmojsite) $ git submodule init
+(dmojsite) $ git submodule update
+(dmojsite) $ pip3 install -r requirements.txt
+(dmojsite) $ pip3 install mysqlclient
+(dmojsite) $ pre-commit install
+```
+
+- Bước 5: tạo local_settings.py. Đây là file để custom setting cho Django. Các bạn tạo file vào `online-judge/dmoj/local_settings.py`
+    - File mẫu: https://github.com/DMOJ/docs/blob/master/sample_files/local_settings.py
+    - Nếu bạn đổi tên hoặc mật khẩu table databases thì thay đổi thông tin tương ứng trong `Databases`
+    - Sau khi xong, chạy lệnh `(dmojsite) $ python3 manage.py check` để kiểm tra
+- Bước 6: Compile CSS và translation
+    - Giải thích:
+        - Lệnh 1 và 2 gọi sau mỗi lần thay đổi 1 file css hoặc file js (file html thì không cần)
+        - Lệnh 3 và 4 gọi sau mỗi lần thay đổi file dịch
+    - Note: Sau khi chạy lệnh này, folder tương ứng với STATIC_ROOT trong local_settings phải được tạo. Nếu chưa được tạo thì mình cần tạo folder đó trước khi chạy 2 lệnh đầu.
+
+```jsx
+(dmojsite) $ ./make_style.sh
+(dmojsite) $ python3 manage.py collectstatic
+(dmojsite) $ python3 manage.py compilemessages
+(dmojsite) $ python3 manage.py compilejsi18n
+```
+
+- Bước 7: Thêm dữ liệu vào DB
+
+```jsx
+(dmojsite) $ python3 manage.py migrate
+(dmojsite) $ python3 manage.py loaddata navbar
+(dmojsite) $ python3 manage.py loaddata language_small
+(dmojsite) $ python3 manage.py loaddata demo
+```
+
+- Bước 8: Chạy site. Đến đây thì cơ bản đã hoàn thành (chưa có judge, websocket, celery). Các bạn có thể truy cập tại `localhost:8000`
+
+```jsx
+python3 manage.py runserver 0.0.0.0:8000
+```
+
+**Một số lưu ý:**
+
+1. (WSL) có thể tải ứng dụng Terminal trong Windows Store
+2. (WSL) mỗi lần mở ubuntu, các bạn cần chạy lệnh sau để mariadb khởi động: `sudo service mysql restart` (tương tự cho một số service khác như memcached, celery)
+3. Sau khi cài đặt, các bạn chỉ cần activate virtual env và chạy lệnh runserver là ok
+```jsx
+. dmojsite/bin/activate
+python3 manage.py runserver
+```
+5. Đối với nginx, sau khi config xong theo guide của DMOJ, bạn cần thêm location như sau để sử dụng được tính năng profile image, thay thế `path/to/oj` thành đường dẫn nơi bạn đã clone source code.
+
+```
+location /profile_images/ {
+    root /path/to/oj;
+}
+```
+
+6. Quy trình dev:
+    1. Sau khi thay đổi code thì django tự build lại, các bạn chỉ cần F5
+    2. Một số style nằm trong các file .scss. Các bạn cần recompile css thì mới thấy được thay đổi.
+
+**Optional:**
+
+************Alias:************ Các bạn có thể lưu các alias này để sau này dùng cho nhanh
+
+- mtrans: để generate translation khi các bạn add một string trong code
+- trans: compile translation (sau khi bạn đã dịch tiếng Việt)
+- cr: chuyển tới folder OJ
+- pr: chạy server
+- sm: restart service (chủ yếu dùng cho WSL)
+- sd: activate virtual env
+- css: compile các file css
+
+```jsx
+alias mtrans='python3 manage.py makemessages -l vi && python3 manage.py makedmojmessages -l vi'
+alias pr='python3 manage.py runserver'
+alias sd='source ~/LQDOJ/dmojsite/bin/activate'
+alias sm='sudo service mysql restart && sudo service redis-server start && sudo service memcached start'
+alias trans='python3 manage.py compilemessages -l vi && python3 manage.py compilejsi18n -l vi'
+alias cr='cd ~/LQDOJ/online-judge'
+alias css='./make_style.sh && python3 manage.py collectstatic --noinput'
+```
+
+**Memcached:** dùng cho in-memory cache
+
+```jsx
+$ sudo apt install memcached
+```
+
+**Websocket:** dùng để live update (như chat)
+
+- Tạo file online-judge/websocket/config.js
+
+```jsx
+module.exports = {
+    get_host: '127.0.0.1',
+    get_port: 15100,
+    post_host: '127.0.0.1',
+    post_port: 15101,
+    http_host: '127.0.0.1',
+    http_port: 15102,
+    long_poll_timeout: 29000,
+};
+```
+
+- Cài các thư viện
+
+```jsx
+(dmojsite) $ npm install qu ws simplesets
+(dmojsite) $ pip3 install websocket-client
+```
+
+- Khởi động (trong 1 tab riêng)
+
+```jsx
+(dmojsite) $ node websocket/daemon.js
+```
+
+**************Celery:************** (dùng cho một số task như batch rejudge_
+
+```jsx
+celery -A dmoj_celery worker
+```
+
+**************Judge:**************
+
+- Cài đặt ở 1 folder riêng bên ngoài site:
+
+```jsx
+$ apt install python3-dev python3-pip build-essential libseccomp-dev
+$ git clone https://github.com/LQDJudge/judge-server.git
+$ cd judge-server
+$ sudo pip3 install -e .
+```
+
+- Tạo một file judge.yml ở bên ngoài folder judge-server (file mẫu https://github.com/DMOJ/docs/blob/master/sample_files/judge_conf.yml)
+- Thêm judge vào site bằng UI: Admin → Judge → Thêm Judge → nhập id và key (chỉ cần thêm 1 lần) hoặc dùng lệnh `(dmojsite) $ python3 managed.py addjudge <id> <key>`.
+- Chạy Bridge (cầu nối giữa judge và site) trong 1 tab riêng trong folder online-judge:
+
+```jsx
+(dmojsite) $ python3 managed.py runbridged
+```
+
+- Khởi động Judge (trong 1 tab riêng):
+
+```jsx
+$ dmoj -c judge.yml localhost
+```
+
+- Lưu ý: mỗi lần sau này muốn chạy judge thì mở 1 tab cho bridge và n tab cho judge. Mỗi judge cần 1 file yml khác nhau (chứa authentication khác nhau)
+
 ### Some frequent difficulties when installation:
 
 1. Missing the `local_settings.py`. You need to copy the `local_settings.py` in order to pass the check.
@@ -37,7 +229,7 @@ There is one minor change: Instead of `git clone https://github.com/DMOJ/site.gi
 3. Missing static folder in `local_settings.py`. Similar to problem folder, make sure to configure `STATIC_FILES` inside `local_settings.py`. 
 4. Missing configure file for judges. Each judge must have a seperate configure file. To create this file, you can run `python dmojauto-conf`. Checkout all sample files here https://github.com/DMOJ/docs/blob/master/sample_files.
 5. Missing timezone data for SQL. If you're using Ubuntu and you're following DMOJ's installation guide for the server, and you are getting the error mentioned in https://github.com/LQDJudge/online-judge/issues/45, then you can follow this method to fix:
-```bash
+```
 mysql
 -- You may have to do this if you haven't set root password for MySQL, replace mypass with your password
 -- SET PASSWORD FOR 'root'@'localhost' = PASSWORD('mypass');
@@ -89,6 +281,8 @@ celery -A dmoj_celery worker
 node websocket/daemon.js
 ```
 
+7. To use subdomain for each organization, go to admin page -> navigation bar -> sites, add domain name (e.g, "localhost:8000"). Then go to add `USE_SUBDOMAIN = True` to local_settings.py.
+
 ## Deploy
 Most of the steps are similar to Django tutorials. Here are two usual steps:
 
@@ -102,7 +296,7 @@ Most of the steps are similar to Django tutorials. Here are two usual steps:
 2. Update styles (using SASS)
  - Change .css/.scss files in `resources` folder
  - ```./make_style.sh && python3 manage.py collectstatic```
- - Sometimes you need to `Ctrl + F5` to see the new user interface in browser.
+ - Sometimes you need to press `Ctrl + F5` to see the new user interface in browser.
  
 ## Screenshots
 

chat_box/apps.py

@@ -3,3 +3,6 @@ from django.apps import AppConfig
 
 class ChatBoxConfig(AppConfig):
     name = "chat_box"
+
+    def ready(self):
+        from . import models

chat_box/migrations/0011_alter_message_hidden.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.18 on 2023-02-18 21:10
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("chat_box", "0010_auto_20221028_0300"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="message",
+            name="hidden",
+            field=models.BooleanField(
+                db_index=True, default=False, verbose_name="is hidden"
+            ),
+        ),
+    ]

chat_box/migrations/0012_auto_20230308_1417.py

@@ -0,0 +1,34 @@
+# Generated by Django 3.2.18 on 2023-03-08 07:17
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0154_add_submission_indexes"),
+        ("chat_box", "0011_alter_message_hidden"),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name="message",
+            options={
+                "ordering": ("-id",),
+                "verbose_name": "message",
+                "verbose_name_plural": "messages",
+            },
+        ),
+        migrations.AlterField(
+            model_name="message",
+            name="hidden",
+            field=models.BooleanField(default=False, verbose_name="is hidden"),
+        ),
+        migrations.AddIndex(
+            model_name="message",
+            index=models.Index(
+                fields=["hidden", "room", "-id"], name="chat_box_me_hidden_b2307a_idx"
+            ),
+        ),
+    ]

chat_box/migrations/0013_alter_message_time.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.18 on 2023-08-28 01:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("chat_box", "0012_auto_20230308_1417"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="message",
+            name="time",
+            field=models.DateTimeField(
+                auto_now_add=True, db_index=True, verbose_name="posted time"
+            ),
+        ),
+    ]

chat_box/migrations/0014_userroom_unread_count.py

@@ -0,0 +1,38 @@
+# Generated by Django 3.2.18 on 2023-08-28 06:02
+
+from django.db import migrations, models
+
+
+def migrate(apps, schema_editor):
+    UserRoom = apps.get_model("chat_box", "UserRoom")
+    Message = apps.get_model("chat_box", "Message")
+
+    for ur in UserRoom.objects.all():
+        if not ur.room:
+            continue
+        messages = ur.room.message_set
+        last_msg = messages.first()
+        try:
+            if last_msg and last_msg.author != ur.user:
+                ur.unread_count = messages.filter(time__gte=ur.last_seen).count()
+            else:
+                ur.unread_count = 0
+            ur.save()
+        except:
+            continue
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("chat_box", "0013_alter_message_time"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="userroom",
+            name="unread_count",
+            field=models.IntegerField(db_index=True, default=0),
+        ),
+        migrations.RunPython(migrate, migrations.RunPython.noop, atomic=True),
+    ]

chat_box/migrations/0015_room_last_msg_time.py

@@ -0,0 +1,33 @@
+# Generated by Django 3.2.18 on 2023-11-02 01:41
+
+from django.db import migrations, models
+
+
+def migrate(apps, schema_editor):
+    Room = apps.get_model("chat_box", "Room")
+    Message = apps.get_model("chat_box", "Message")
+
+    for room in Room.objects.all():
+        messages = room.message_set
+        last_msg = messages.first()
+        if last_msg:
+            room.last_msg_time = last_msg.time
+            room.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("chat_box", "0014_userroom_unread_count"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="room",
+            name="last_msg_time",
+            field=models.DateTimeField(
+                db_index=True, null=True, verbose_name="last seen"
+            ),
+        ),
+        migrations.RunPython(migrate, migrations.RunPython.noop, atomic=True),
+    ]

chat_box/migrations/0016_alter_room_unique_together.py

@@ -0,0 +1,32 @@
+# Generated by Django 3.2.18 on 2024-08-22 03:12
+
+from django.db import migrations, models
+
+
+def remove_duplicates(apps, schema_editor):
+    Room = apps.get_model("chat_box", "Room")
+    seen = set()
+
+    for room in Room.objects.all():
+        pair = (room.user_one_id, room.user_two_id)
+        reverse_pair = (room.user_two_id, room.user_one_id)
+
+        if pair in seen or reverse_pair in seen:
+            room.delete()
+        else:
+            seen.add(pair)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("chat_box", "0015_room_last_msg_time"),
+    ]
+
+    operations = [
+        migrations.RunPython(remove_duplicates),
+        migrations.AlterUniqueTogether(
+            name="room",
+            unique_together={("user_one", "user_two")},
+        ),
+    ]

chat_box/models.py

@@ -1,9 +1,11 @@
 from django.db import models
-from django.db.models import CASCADE
+from django.db.models import CASCADE, Q
 from django.utils.translation import gettext_lazy as _
+from django.utils.functional import cached_property
 
 
 from judge.models.profile import Profile
+from judge.caching import cache_wrapper
 
 
 __all__ = ["Message", "Room", "UserRoom", "Ignore"]
@@ -16,20 +18,44 @@ class Room(models.Model):
     user_two = models.ForeignKey(
         Profile, related_name="user_two", verbose_name="user 2", on_delete=CASCADE
     )
+    last_msg_time = models.DateTimeField(
+        verbose_name=_("last seen"), null=True, db_index=True
+    )
+
+    class Meta:
+        app_label = "chat_box"
+        unique_together = ("user_one", "user_two")
+
+    @cached_property
+    def _cached_info(self):
+        return get_room_info(self.id)
 
     def contain(self, profile):
-        return self.user_one == profile or self.user_two == profile
+        return profile.id in [self.user_one_id, self.user_two_id]
 
     def other_user(self, profile):
         return self.user_one if profile == self.user_two else self.user_two
 
+    def other_user_id(self, profile):
+        user_ids = [self.user_one_id, self.user_two_id]
+        return sum(user_ids) - profile.id
+
     def users(self):
         return [self.user_one, self.user_two]
 
+    def last_message_body(self):
+        return self._cached_info["last_message"]
+
+    @classmethod
+    def prefetch_room_cache(self, room_ids):
+        get_room_info.prefetch_multi([(i,) for i in room_ids])
+
 
 class Message(models.Model):
     author = models.ForeignKey(Profile, verbose_name=_("user"), on_delete=CASCADE)
-    time = models.DateTimeField(verbose_name=_("posted time"), auto_now_add=True)
+    time = models.DateTimeField(
+        verbose_name=_("posted time"), auto_now_add=True, db_index=True
+    )
     body = models.TextField(verbose_name=_("body of comment"), max_length=8192)
     hidden = models.BooleanField(verbose_name="is hidden", default=False)
     room = models.ForeignKey(
@@ -37,14 +63,17 @@ class Message(models.Model):
     )
 
     def save(self, *args, **kwargs):
-        new_message = self.id
         self.body = self.body.strip()
         super(Message, self).save(*args, **kwargs)
 
     class Meta:
         verbose_name = "message"
         verbose_name_plural = "messages"
-        ordering = ("-time",)
+        ordering = ("-id",)
+        indexes = [
+            models.Index(fields=["hidden", "room", "-id"]),
+        ]
+        app_label = "chat_box"
 
 
 class UserRoom(models.Model):
@@ -53,9 +82,11 @@ class UserRoom(models.Model):
         Room, verbose_name="room id", on_delete=CASCADE, default=None, null=True
     )
     last_seen = models.DateTimeField(verbose_name=_("last seen"), auto_now_add=True)
+    unread_count = models.IntegerField(default=0, db_index=True)
 
     class Meta:
         unique_together = ("user", "room")
+        app_label = "chat_box"
 
 
 class Ignore(models.Model):
@@ -68,14 +99,15 @@ class Ignore(models.Model):
     )
     ignored_users = models.ManyToManyField(Profile)
 
+    class Meta:
+        app_label = "chat_box"
+
     @classmethod
     def is_ignored(self, current_user, new_friend):
         try:
-            return (
+            return current_user.ignored_chat_users.ignored_users.filter(
-                current_user.ignored_chat_users.get()
+                id=new_friend.id
-                .ignored_users.filter(id=new_friend.id)
+            ).exists()
-                .exists()
-            )
         except:
             return False
 
@@ -86,6 +118,16 @@ class Ignore(models.Model):
         except:
             return Profile.objects.none()
 
+    @classmethod
+    def get_ignored_rooms(self, user):
+        try:
+            ignored_users = self.objects.get(user=user).ignored_users.all()
+            return Room.objects.filter(Q(user_one=user) | Q(user_two=user)).filter(
+                Q(user_one__in=ignored_users) | Q(user_two__in=ignored_users)
+            )
+        except:
+            return Room.objects.none()
+
     @classmethod
     def add_ignore(self, current_user, friend):
         ignore, created = self.objects.get_or_create(user=current_user)
@@ -102,3 +144,11 @@ class Ignore(models.Model):
             self.remove_ignore(current_user, friend)
         else:
             self.add_ignore(current_user, friend)
+
+
+@cache_wrapper(prefix="Rinfo")
+def get_room_info(room_id):
+    last_msg = Message.objects.filter(room_id=room_id).first()
+    return {
+        "last_message": last_msg.body if last_msg else None,
+    }

chat_box/utils.py

@@ -1,10 +1,14 @@
 from cryptography.fernet import Fernet
+import hmac
+import hashlib
 
 from django.conf import settings
-from django.db.models import OuterRef, Count, Subquery, IntegerField
+from django.db.models import OuterRef, Count, Subquery, IntegerField, Q
 from django.db.models.functions import Coalesce
 
-from chat_box.models import Ignore, Message, UserRoom
+from chat_box.models import Ignore, Message, UserRoom, Room
+
+from judge.caching import cache_wrapper
 
 secret_key = settings.CHAT_SECRET_KEY
 fernet = Fernet(secret_key)
@@ -24,25 +28,23 @@ def decrypt_url(message_encrypted):
         return None, None
 
 
-def get_unread_boxes(profile):
+def encrypt_channel(channel):
-    ignored_users = Ignore.get_ignored_users(profile)
+    return (
-
+        hmac.new(
-    mess = (
+            settings.CHAT_SECRET_KEY.encode(),
-        Message.objects.filter(room=OuterRef("room"), time__gte=OuterRef("last_seen"))
+            channel.encode(),
-        .exclude(author=profile)
+            hashlib.sha512,
-        .exclude(author__in=ignored_users)
+        ).hexdigest()[:16]
-        .order_by()
+        + "%s" % channel
-        .values("room")
-        .annotate(unread_count=Count("pk"))
-        .values("unread_count")
     )
 
+
+@cache_wrapper(prefix="gub")
+def get_unread_boxes(profile):
+    ignored_rooms = Ignore.get_ignored_rooms(profile)
     unread_boxes = (
-        UserRoom.objects.filter(user=profile, room__isnull=False)
+        UserRoom.objects.filter(user=profile, unread_count__gt=0)
-        .annotate(
+        .exclude(room__in=ignored_rooms)
-            unread_count=Coalesce(Subquery(mess, output_field=IntegerField()), 0),
-        )
-        .filter(unread_count__gte=1)
         .count()
     )
 

chat_box/views.py

@@ -21,43 +21,57 @@ from django.db.models import (
     Exists,
     Count,
     IntegerField,
+    F,
+    Max,
 )
 from django.db.models.functions import Coalesce
 from django.utils import timezone
 from django.contrib.auth.decorators import login_required
 from django.urls import reverse
 
-import datetime
 
 from judge import event_poster as event
 from judge.jinja2.gravatar import gravatar
 from judge.models import Friend
 
-from chat_box.models import Message, Profile, Room, UserRoom, Ignore
+from chat_box.models import Message, Profile, Room, UserRoom, Ignore, get_room_info
-from chat_box.utils import encrypt_url, decrypt_url
+from chat_box.utils import encrypt_url, decrypt_url, encrypt_channel, get_unread_boxes
 
-import json
+from reversion import revisions
 
 
 class ChatView(ListView):
     context_object_name = "message"
     template_name = "chat/chat.html"
-    title = _("Chat Box")
+    title = _("LQDOJ Chat")
 
     def __init__(self):
         super().__init__()
         self.room_id = None
         self.room = None
-        self.paginate_by = 50
         self.messages = None
-        self.paginator = None
+        self.first_page_size = 20  # only for first request
+        self.follow_up_page_size = 50
 
     def get_queryset(self):
         return self.messages
 
+    def has_next(self):
+        try:
+            msg = Message.objects.filter(room=self.room_id).earliest("id")
+        except Exception as e:
+            return False
+        return msg not in self.messages
+
     def get(self, request, *args, **kwargs):
         request_room = kwargs["room_id"]
-        page = request.GET.get("page")
+        page_size = self.follow_up_page_size
+        try:
+            last_id = int(request.GET.get("last_id"))
+        except Exception:
+            last_id = 1e15
+            page_size = self.first_page_size
+        only_messages = request.GET.get("only_messages")
 
         if request_room:
             try:
@@ -69,23 +83,21 @@ class ChatView(ListView):
         else:
             request_room = None
 
-        if request_room != self.room_id or not self.messages:
+        self.room_id = request_room
-            self.room_id = request_room
+        self.messages = (
-            self.messages = Message.objects.filter(hidden=False, room=self.room_id)
+            Message.objects.filter(hidden=False, room=self.room_id, id__lt=last_id)
-            self.paginator = Paginator(self.messages, self.paginate_by)
+            .select_related("author")
-
+            .only("body", "time", "author__rating", "author__display_rank")[:page_size]
-        if page == None:
+        )
-            update_last_seen(request, **kwargs)
+        if not only_messages:
             return super().get(request, *args, **kwargs)
 
-        cur_page = self.paginator.get_page(page)
-
         return render(
             request,
             "chat/message_list.html",
             {
-                "object_list": cur_page.object_list,
+                "object_list": self.messages,
-                "num_pages": self.paginator.num_pages,
+                "has_next": self.has_next(),
             },
         )
 
@@ -94,9 +106,14 @@ class ChatView(ListView):
 
         context["title"] = self.title
         context["last_msg"] = event.last()
-        context["status_sections"] = get_status_context(self.request)
+        context["status_sections"] = get_status_context(self.request.profile)
         context["room"] = self.room_id
+        context["has_next"] = self.has_next()
         context["unread_count_lobby"] = get_unread_count(None, self.request.profile)
+        context["chat_channel"] = encrypt_channel(
+            "chat_" + str(self.request.profile.id)
+        )
+        context["chat_lobby_channel"] = encrypt_channel("chat_lobby")
         if self.room:
             users_room = [self.room.user_one, self.room.user_two]
             users_room.remove(self.request.profile)
@@ -120,36 +137,89 @@ def delete_message(request):
     ret = {"delete": "done"}
 
     if request.method == "GET":
-        return JsonResponse(ret)
+        return HttpResponseBadRequest()
 
-    if request.user.is_staff:
+    try:
-        try:
+        messid = int(request.POST.get("message"))
-            messid = int(request.POST.get("message"))
+        mess = Message.objects.get(id=messid)
-            mess = Message.objects.get(id=messid)
+    except:
-        except:
+        return HttpResponseBadRequest()
-            return HttpResponseBadRequest()
 
-        mess.hidden = True
+    if not request.user.is_staff and request.profile != mess.author:
-        mess.save()
+        return HttpResponseBadRequest()
 
-        return JsonResponse(ret)
+    mess.hidden = True
+    mess.save()
 
     return JsonResponse(ret)
 
 
+def mute_message(request):
+    ret = {"mute": "done"}
+
+    if request.method == "GET":
+        return HttpResponseBadRequest()
+
+    if not request.user.is_staff:
+        return HttpResponseBadRequest()
+
+    try:
+        messid = int(request.POST.get("message"))
+        mess = Message.objects.get(id=messid)
+    except:
+        return HttpResponseBadRequest()
+
+    with revisions.create_revision():
+        revisions.set_comment(_("Mute chat") + ": " + mess.body)
+        revisions.set_user(request.user)
+        mess.author.mute = True
+        mess.author.save()
+
+    Message.objects.filter(room=None, author=mess.author).update(hidden=True)
+
+    return JsonResponse(ret)
+
+
+def check_valid_message(request, room):
+    if not room and len(request.POST["body"]) > 200:
+        return False
+
+    if not can_access_room(request, room) or request.profile.mute:
+        return False
+
+    last_msg = Message.objects.filter(room=room).first()
+    if (
+        last_msg
+        and last_msg.author == request.profile
+        and last_msg.body == request.POST["body"].strip()
+    ):
+        return False
+
+    if not room:
+        four_last_msg = Message.objects.filter(room=room).order_by("-id")[:4]
+        if len(four_last_msg) >= 4:
+            same_author = all(msg.author == request.profile for msg in four_last_msg)
+            time_diff = timezone.now() - four_last_msg[3].time
+            if same_author and time_diff.total_seconds() < 300:
+                return False
+
+    return True
+
+
 @login_required
 def post_message(request):
     ret = {"msg": "posted"}
+
     if request.method != "POST":
         return HttpResponseBadRequest()
-    if len(request.POST["body"]) > 5000:
+    if len(request.POST["body"]) > 5000 or len(request.POST["body"].strip()) == 0:
         return HttpResponseBadRequest()
 
     room = None
     if request.POST["room"]:
         room = Room.objects.get(id=request.POST["room"])
 
-    if not can_access_room(request, room) or request.profile.mute:
+    if not check_valid_message(request, room):
         return HttpResponseBadRequest()
 
     new_message = Message(author=request.profile, body=request.POST["body"], room=room)
@@ -157,7 +227,7 @@ def post_message(request):
 
     if not room:
         event.post(
-            "chat_lobby",
+            encrypt_channel("chat_lobby"),
             {
                 "type": "lobby",
                 "author_id": request.profile.id,
@@ -167,9 +237,13 @@ def post_message(request):
             },
         )
     else:
+        get_room_info.dirty(room.id)
+        room.last_msg_time = new_message.time
+        room.save()
+
         for user in room.users():
             event.post(
-                "chat_" + str(user.id),
+                encrypt_channel("chat_" + str(user.id)),
                 {
                     "type": "private",
                     "author_id": request.profile.id,
@@ -178,14 +252,17 @@ def post_message(request):
                     "tmp_id": request.POST.get("tmp_id"),
                 },
             )
+            if user != request.profile:
+                UserRoom.objects.filter(user=user, room=room).update(
+                    unread_count=F("unread_count") + 1
+                )
+                get_unread_boxes.dirty(user)
 
     return JsonResponse(ret)
 
 
 def can_access_room(request, room):
-    return (
+    return not room or room.contain(request.profile)
-        not room or room.user_one == request.profile or room.user_two == request.profile
-    )
 
 
 @login_required
@@ -201,7 +278,7 @@ def chat_message_ajax(request):
     try:
         message = Message.objects.filter(hidden=False).get(id=message_id)
         room = message.room
-        if room and not room.contain(request.profile):
+        if not can_access_room(request, room):
             return HttpResponse("Unauthorized", status=401)
     except Message.DoesNotExist:
         return HttpResponseBadRequest()
@@ -224,35 +301,35 @@ def update_last_seen(request, **kwargs):
         room_id = request.POST.get("room")
     else:
         return HttpResponseBadRequest()
-
     try:
         profile = request.profile
         room = None
         if room_id:
-            room = Room.objects.get(id=int(room_id))
+            room = Room.objects.filter(id=int(room_id)).first()
     except Room.DoesNotExist:
         return HttpResponseBadRequest()
-    except Exception as e:
-        return HttpResponseBadRequest()
 
-    if room and not room.contain(profile):
+    if not can_access_room(request, room):
         return HttpResponseBadRequest()
 
     user_room, _ = UserRoom.objects.get_or_create(user=profile, room=room)
     user_room.last_seen = timezone.now()
+    user_room.unread_count = 0
     user_room.save()
 
+    get_unread_boxes.dirty(profile)
+
     return JsonResponse({"msg": "updated"})
 
 
 def get_online_count():
-    last_two_minutes = timezone.now() - timezone.timedelta(minutes=2)
+    last_5_minutes = timezone.now() - timezone.timedelta(minutes=5)
-    return Profile.objects.filter(last_access__gte=last_two_minutes).count()
+    return Profile.objects.filter(last_access__gte=last_5_minutes).count()
 
 
 def get_user_online_status(user):
     time_diff = timezone.now() - user.last_access
-    is_online = time_diff <= timezone.timedelta(minutes=2)
+    is_online = time_diff <= timezone.timedelta(minutes=5)
     return is_online
 
 
@@ -289,47 +366,66 @@ def user_online_status_ajax(request):
         )
 
 
-def get_online_status(request_user, queryset, rooms=None):
+def get_online_status(profile, other_profile_ids, rooms=None):
-    if not queryset:
+    if not other_profile_ids:
         return None
-    last_two_minutes = timezone.now() - timezone.timedelta(minutes=2)
+    Profile.prefetch_profile_cache(other_profile_ids)
+
+    joined_ids = ",".join([str(id) for id in other_profile_ids])
+    other_profiles = Profile.objects.raw(
+        f"SELECT * from judge_profile where id in ({joined_ids}) order by field(id,{joined_ids})"
+    )
+    last_5_minutes = timezone.now() - timezone.timedelta(minutes=5)
     ret = []
-
     if rooms:
-        unread_count = get_unread_count(rooms, request_user)
+        unread_count = get_unread_count(rooms, profile)
         count = {}
+        last_msg = {}
+        room_of_user = {}
         for i in unread_count:
-            count[i["other_user"]] = i["unread_count"]
+            room = Room.objects.get(id=i["room"])
+            other_profile = room.other_user(profile)
+            count[other_profile.id] = i["unread_count"]
+        rooms = Room.objects.filter(id__in=rooms)
+        for room in rooms:
+            other_profile_id = room.other_user_id(profile)
+            last_msg[other_profile_id] = room.last_message_body()
+            room_of_user[other_profile_id] = room.id
 
-    for user in queryset:
+    for other_profile in other_profiles:
         is_online = False
-        if user.last_access >= last_two_minutes:
+        if other_profile.last_access >= last_5_minutes:
             is_online = True
-        user_dict = {"user": user, "is_online": is_online}
+        user_dict = {"user": other_profile, "is_online": is_online}
-        if rooms and user.id in count:
+        if rooms:
-            user_dict["unread_count"] = count[user.id]
+            user_dict.update(
-        user_dict["url"] = encrypt_url(request_user.id, user.id)
+                {
+                    "unread_count": count.get(other_profile.id),
+                    "last_msg": last_msg.get(other_profile.id),
+                    "room": room_of_user.get(other_profile.id),
+                }
+            )
+        user_dict["url"] = encrypt_url(profile.id, other_profile.id)
         ret.append(user_dict)
     return ret
 
 
-def get_status_context(request, include_ignored=False):
+def get_status_context(profile, include_ignored=False):
     if include_ignored:
-        ignored_users = Profile.objects.none()
+        ignored_users = []
         queryset = Profile.objects
     else:
-        ignored_users = Ignore.get_ignored_users(request.profile)
+        ignored_users = list(
+            Ignore.get_ignored_users(profile).values_list("id", flat=True)
+        )
         queryset = Profile.objects.exclude(id__in=ignored_users)
 
-    last_two_minutes = timezone.now() - timezone.timedelta(minutes=2)
+    last_5_minutes = timezone.now() - timezone.timedelta(minutes=5)
     recent_profile = (
-        Room.objects.filter(Q(user_one=request.profile) | Q(user_two=request.profile))
+        Room.objects.filter(Q(user_one=profile) | Q(user_two=profile))
         .annotate(
-            last_msg_time=Subquery(
-                Message.objects.filter(room=OuterRef("pk")).values("time")[:1]
-            ),
             other_user=Case(
-                When(user_one=request.profile, then="user_two"),
+                When(user_one=profile, then="user_two"),
                 default="user_one",
             ),
         )
@@ -339,50 +435,24 @@ def get_status_context(request, include_ignored=False):
         .values("other_user", "id")[:20]
     )
 
-    recent_profile_id = [str(i["other_user"]) for i in recent_profile]
+    recent_profile_ids = [str(i["other_user"]) for i in recent_profile]
-    joined_id = ",".join(recent_profile_id)
     recent_rooms = [int(i["id"]) for i in recent_profile]
-    recent_list = None
+    Room.prefetch_room_cache(recent_rooms)
-    if joined_id:
+
-        recent_list = Profile.objects.raw(
-            f"SELECT * from judge_profile where id in ({joined_id}) order by field(id,{joined_id})"
-        )
-    friend_list = (
-        Friend.get_friend_profiles(request.profile)
-        .exclude(id__in=recent_profile_id)
-        .exclude(id__in=ignored_users)
-        .order_by("-last_access")
-    )
     admin_list = (
         queryset.filter(display_rank="admin")
-        .exclude(id__in=friend_list)
+        .exclude(id__in=recent_profile_ids)
-        .exclude(id__in=recent_profile_id)
+        .values_list("id", flat=True)
-    )
-    all_user_status = (
-        queryset.filter(display_rank="user", last_access__gte=last_two_minutes)
-        .annotate(is_online=Case(default=True, output_field=BooleanField()))
-        .order_by("-rating")
-        .exclude(id__in=friend_list)
-        .exclude(id__in=admin_list)
-        .exclude(id__in=recent_profile_id)[:30]
     )
 
     return [
         {
-            "title": "Recent",
+            "title": _("Recent"),
-            "user_list": get_online_status(request.profile, recent_list, recent_rooms),
+            "user_list": get_online_status(profile, recent_profile_ids, recent_rooms),
         },
         {
-            "title": "Following",
+            "title": _("Admin"),
-            "user_list": get_online_status(request.profile, friend_list),
+            "user_list": get_online_status(profile, admin_list),
-        },
-        {
-            "title": "Admin",
-            "user_list": get_online_status(request.profile, admin_list),
-        },
-        {
-            "title": "Other",
-            "user_list": get_online_status(request.profile, all_user_status),
         },
     ]
 
@@ -393,7 +463,7 @@ def online_status_ajax(request):
         request,
         "chat/online_status.html",
         {
-            "status_sections": get_status_context(request),
+            "status_sections": get_status_context(request.profile),
             "unread_count_lobby": get_unread_count(None, request.profile),
         },
     )
@@ -417,7 +487,6 @@ def get_or_create_room(request):
         return HttpResponseBadRequest()
 
     request_id, other_id = decrypt_url(decrypted_other_id)
-
     if not other_id or not request_id or request_id != request.profile.id:
         return HttpResponseBadRequest()
 
@@ -438,55 +507,36 @@ def get_or_create_room(request):
             user_room.last_seen = timezone.now()
             user_room.save()
 
+    room_url = reverse("chat", kwargs={"room_id": room.id})
     if request.method == "GET":
-        return JsonResponse({"room": room.id, "other_user_id": other_user.id})
+        return JsonResponse(
-    return HttpResponseRedirect(reverse("chat", kwargs={"room_id": room.id}))
+            {
+                "room": room.id,
+                "other_user_id": other_user.id,
+                "url": room_url,
+            }
+        )
+    return HttpResponseRedirect(room_url)
 
 
 def get_unread_count(rooms, user):
     if rooms:
-        mess = (
+        return UserRoom.objects.filter(
-            Message.objects.filter(
+            user=user, room__in=rooms, unread_count__gt=0
-                room=OuterRef("room"), time__gte=OuterRef("last_seen")
+        ).values("unread_count", "room")
-            )
-            .exclude(author=user)
-            .order_by()
-            .values("room")
-            .annotate(unread_count=Count("pk"))
-            .values("unread_count")
-        )
-
-        return (
-            UserRoom.objects.filter(user=user, room__in=rooms)
-            .annotate(
-                unread_count=Coalesce(Subquery(mess, output_field=IntegerField()), 0),
-                other_user=Case(
-                    When(room__user_one=user, then="room__user_two"),
-                    default="room__user_one",
-                ),
-            )
-            .filter(unread_count__gte=1)
-            .values("other_user", "unread_count")
-        )
     else:  # lobby
-        mess = (
+        user_room = UserRoom.objects.filter(user=user, room__isnull=True).first()
-            Message.objects.filter(room__isnull=True, time__gte=OuterRef("last_seen"))
+        if not user_room:
-            .exclude(author=user)
+            return 0
-            .order_by()
+        last_seen = user_room.last_seen
-            .values("room")
-            .annotate(unread_count=Count("pk"))
-            .values("unread_count")
-        )
-
         res = (
-            UserRoom.objects.filter(user=user, room__isnull=True)
+            Message.objects.filter(room__isnull=True, time__gte=last_seen)
-            .annotate(
+            .exclude(author=user)
-                unread_count=Coalesce(Subquery(mess, output_field=IntegerField()), 0),
+            .exclude(hidden=True)
-            )
+            .count()
-            .values_list("unread_count", flat=True)
         )
 
-        return res[0] if len(res) else 0
+        return res
 
 
 @login_required

django_ace/static/django_ace/widget.css

@@ -11,6 +11,12 @@
     bottom: 0;
 }
 
+.ace_editor {
+    overflow: hidden;
+    font: 12px/normal 'Fira Code', 'Monaco', 'Menlo', monospace;
+    direction: 1tr;
+}
+
 .django-ace-widget.loading {
     display: none;
 }

django_ace/static/django_ace/widget.js

@@ -162,7 +162,7 @@
         ]);
 
         window[widget.id] = editor;
-        $(widget).trigger('ace_load', [editor]);
+        setTimeout(() => $(widget).trigger('ace_load', [editor]), 100);
     }
 
     function init() {

django_ace/widgets.py

@@ -66,7 +66,7 @@ class AceWidget(forms.Textarea):
         if self.toolbar:
             toolbar = (
                 '<div style="width: {}" class="django-ace-toolbar">'
-                '<a href="./" class="django-ace-max_min"></a>'
+                '<a href="#" class="django-ace-max_min"></a>'
                 "</div>"
             ).format(self.width)
             html = toolbar + html

dmoj/settings.py

@@ -33,6 +33,7 @@ SITE_ID = 1
 SITE_NAME = "LQDOJ"
 SITE_LONG_NAME = "LQDOJ: Le Quy Don Online Judge"
 SITE_ADMIN_EMAIL = False
+SITE_DOMAIN = "lqdoj.edu.vn"
 
 DMOJ_REQUIRE_STAFF_2FA = True
 
@@ -60,6 +61,7 @@ DMOJ_PROBLEM_MAX_TIME_LIMIT = 60  # seconds
 DMOJ_PROBLEM_MIN_MEMORY_LIMIT = 0  # kilobytes
 DMOJ_PROBLEM_MAX_MEMORY_LIMIT = 1048576  # kilobytes
 DMOJ_PROBLEM_MIN_PROBLEM_POINTS = 0
+DMOJ_SUBMISSION_ROOT = "/tmp"
 DMOJ_RATING_COLORS = True
 DMOJ_EMAIL_THROTTLING = (10, 60)
 DMOJ_STATS_LANGUAGE_THRESHOLD = 10
@@ -82,6 +84,9 @@ DMOJ_STATS_SUBMISSION_RESULT_COLORS = {
     "CE": "#42586d",
     "ERR": "#ffa71c",
 }
+DMOJ_PROFILE_IMAGE_ROOT = "profile_images"
+DMOJ_ORGANIZATION_IMAGE_ROOT = "organization_images"
+DMOJ_TEST_FORMATTER_ROOT = "test_formatter"
 
 MARKDOWN_STYLES = {}
 MARKDOWN_DEFAULT_STYLE = {}
@@ -127,13 +132,10 @@ USE_SELENIUM = False
 SELENIUM_CUSTOM_CHROME_PATH = None
 SELENIUM_CHROMEDRIVER_PATH = "chromedriver"
 
-PYGMENT_THEME = "pygment-github.css"
 INLINE_JQUERY = True
 INLINE_FONTAWESOME = True
 JQUERY_JS = "//ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"
-FONTAWESOME_CSS = (
+FONTAWESOME_CSS = "//cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.2/css/all.min.css"
-    "//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css"
-)
 DMOJ_CANONICAL = ""
 
 # Application definition
@@ -167,7 +169,7 @@ else:
                 },
                 {
                     "model": "judge.Submission",
-                    "icon": "fa-check-square-o",
+                    "icon": "fa-check-square",
                     "children": [
                         "judge.Language",
                         "judge.Judge",
@@ -247,6 +249,7 @@ INSTALLED_APPS += (
 )
 
 MIDDLEWARE = (
+    "judge.middleware.SlowRequestMiddleware",
     "judge.middleware.ShortCircuitMiddleware",
     "django.contrib.sessions.middleware.SessionMiddleware",
     "django.middleware.locale.LocaleMiddleware",
@@ -262,6 +265,7 @@ MIDDLEWARE = (
     "judge.middleware.DMOJImpersonationMiddleware",
     "judge.middleware.ContestMiddleware",
     "judge.middleware.DarkModeMiddleware",
+    "judge.middleware.SubdomainMiddleware",
     "django.contrib.flatpages.middleware.FlatpageFallbackMiddleware",
     "judge.social_auth.SocialAuthExceptionMiddleware",
     "django.contrib.redirects.middleware.RedirectFallbackMiddleware",
@@ -273,8 +277,11 @@ LANGUAGE_COOKIE_AGE = 8640000
 
 FORM_RENDERER = "django.forms.renderers.TemplatesSetting"
 
-IMPERSONATE_REQUIRE_SUPERUSER = True
+IMPERSONATE = {
-IMPERSONATE_DISABLE_LOGGING = True
+    "REQUIRE_SUPERUSER": True,
+    "DISABLE_LOGGING": True,
+    "ADMIN_DELETE_PERMISSION": True,
+}
 
 ACCOUNT_ACTIVATION_DAYS = 7
 
@@ -318,7 +325,6 @@ TEMPLATES = [
                 "judge.template_context.site",
                 "judge.template_context.site_name",
                 "judge.template_context.misc_config",
-                "judge.template_context.math_setting",
                 "social_django.context_processors.backends",
                 "social_django.context_processors.login_redirect",
             ],
@@ -378,6 +384,7 @@ BRIDGED_JUDGE_ADDRESS = [("localhost", 9999)]
 BRIDGED_JUDGE_PROXIES = None
 BRIDGED_DJANGO_ADDRESS = [("localhost", 9998)]
 BRIDGED_DJANGO_CONNECT = None
+BRIDGED_AUTO_CREATE_JUDGE = False
 
 # Event Server configuration
 EVENT_DAEMON_USE = False
@@ -425,7 +432,7 @@ AUTHENTICATION_BACKENDS = (
     "social_core.backends.google.GoogleOAuth2",
     "social_core.backends.facebook.FacebookOAuth2",
     "judge.social_auth.GitHubSecureEmailOAuth2",
-    "django.contrib.auth.backends.ModelBackend",
+    "judge.authentication.CustomModelBackend",
 )
 
 SOCIAL_AUTH_PIPELINE = (
@@ -468,10 +475,27 @@ MESSAGES_TO_LOAD = 15
 
 ML_OUTPUT_PATH = None
 
+# Use subdomain for organizations
+USE_SUBDOMAIN = False
+
+# Chat
+CHAT_SECRET_KEY = "QUdVFsxk6f5-Hd8g9BXv81xMqvIZFRqMl-KbRzztW-U="
+
+# Nginx
+META_REMOTE_ADDRESS_KEY = "REMOTE_ADDR"
+
+DEFAULT_AUTO_FIELD = "django.db.models.AutoField"
+
+# Chunk upload
+CHUNK_UPLOAD_DIR = "/tmp/chunk_upload_tmp"
+
+# Rate limit
+RL_VOTE = "200/h"
+RL_COMMENT = "30/h"
+
+
 try:
     with open(os.path.join(os.path.dirname(__file__), "local_settings.py")) as f:
         exec(f.read(), globals())
 except IOError:
     pass
-
-DEFAULT_AUTO_FIELD = "django.db.models.AutoField"

dmoj/urls.py

@@ -15,14 +15,6 @@ from django.contrib.auth.decorators import login_required
 from django.conf.urls.static import static as url_static
 
 
-from judge.feed import (
-    AtomBlogFeed,
-    AtomCommentFeed,
-    AtomProblemFeed,
-    BlogFeed,
-    CommentFeed,
-    ProblemFeed,
-)
 from judge.forms import CustomAuthenticationForm
 from judge.sitemap import (
     BlogPostSitemap,
@@ -44,6 +36,8 @@ from judge.views import (
     language,
     license,
     mailgun,
+    markdown_editor,
+    test_formatter,
     notification,
     organization,
     preview,
@@ -64,7 +58,14 @@ from judge.views import (
     widgets,
     internal,
     resolver,
+    course,
+    email,
+    custom_file_upload,
 )
+from judge import authentication
+
+from judge.views.test_formatter import test_formatter
+
 from judge.views.problem_data import (
     ProblemDataView,
     ProblemSubmissionDiff,
@@ -76,7 +77,6 @@ from judge.views.register import ActivationView, RegistrationView
 from judge.views.select2 import (
     AssigneeSelect2View,
     ChatUserSearchSelect2View,
-    CommentSelect2View,
     ContestSelect2View,
     ContestUserSearchSelect2View,
     OrganizationSelect2View,
@@ -84,6 +84,7 @@ from judge.views.select2 import (
     TicketUserSelect2View,
     UserSearchSelect2View,
     UserSelect2View,
+    ProblemAuthorSearchSelect2View,
 )
 
 admin.autodiscover()
@@ -103,19 +104,19 @@ register_patterns = [
     # confusing 404.
     url(
         r"^activate/(?P<activation_key>\w+)/$",
-        ActivationView.as_view(title="Activation key invalid"),
+        ActivationView.as_view(title=_("Activation key invalid")),
         name="registration_activate",
     ),
     url(
         r"^register/$",
-        RegistrationView.as_view(title="Register"),
+        RegistrationView.as_view(title=_("Register")),
         name="registration_register",
     ),
     url(
         r"^register/complete/$",
         TitledTemplateView.as_view(
             template_name="registration/registration_complete.html",
-            title="Registration Completed",
+            title=_("Registration Completed"),
         ),
         name="registration_complete",
     ),
@@ -123,7 +124,7 @@ register_patterns = [
         r"^register/closed/$",
         TitledTemplateView.as_view(
             template_name="registration/registration_closed.html",
-            title="Registration not allowed",
+            title=_("Registration not allowed"),
         ),
         name="registration_disallowed",
     ),
@@ -140,9 +141,7 @@ register_patterns = [
     url(r"^logout/$", user.UserLogoutView.as_view(), name="auth_logout"),
     url(
         r"^password/change/$",
-        auth_views.PasswordChangeView.as_view(
+        authentication.CustomPasswordChangeView.as_view(),
-            template_name="registration/password_change_form.html",
-        ),
         name="password_change",
     ),
     url(
@@ -182,6 +181,17 @@ register_patterns = [
         ),
         name="password_reset_done",
     ),
+    url(r"^email/change/$", email.email_change_view, name="email_change"),
+    url(
+        r"^email/change/verify/(?P<uidb64>[0-9A-Za-z]+)-(?P<token>.+)/$",
+        email.verify_email_view,
+        name="email_change_verify",
+    ),
+    url(
+        r"^email/change/pending$",
+        email.email_change_pending_view,
+        name="email_change_pending",
+    ),
     url(r"^social/error/$", register.social_auth_error, name="social_auth_error"),
     url(r"^2fa/$", totp.TOTPLoginView.as_view(), name="login_2fa"),
     url(r"^2fa/enable/$", totp.TOTPEnableView.as_view(), name="enable_2fa"),
@@ -230,18 +240,19 @@ urlpatterns = [
     url(r"^problems/", paged_list_view(problem.ProblemList, "problem_list")),
     url(r"^problems/random/$", problem.RandomProblem.as_view(), name="problem_random"),
     url(
-        r"^problems/feed/",
+        r"^problems/feed/$",
-        paged_list_view(problem.ProblemFeed, "problem_feed", feed_type="for_you"),
+        problem.ProblemFeed.as_view(feed_type="for_you"),
+        name="problem_feed",
     ),
     url(
-        r"^problems/feed/new/",
+        r"^problems/feed/new/$",
-        paged_list_view(problem.ProblemFeed, "problem_feed_new", feed_type="new"),
+        problem.ProblemFeed.as_view(feed_type="new"),
+        name="problem_feed_new",
     ),
     url(
-        r"^problems/feed/volunteer/",
+        r"^problems/feed/volunteer/$",
-        paged_list_view(
+        problem.ProblemFeed.as_view(feed_type="volunteer"),
-            problem.ProblemFeed, "problem_feed_volunteer", feed_type="volunteer"
+        name="problem_feed_volunteer",
-        ),
     ),
     url(
         r"^problem/(?P<problem>[^/]+)",
@@ -368,6 +379,10 @@ urlpatterns = [
         r"^submissions/user/(?P<user>\w+)/",
         paged_list_view(submission.AllUserSubmissions, "all_user_submissions"),
     ),
+    url(
+        r"^submissions/friends/",
+        paged_list_view(submission.AllFriendSubmissions, "all_friend_submissions"),
+    ),
     url(
         r"^src/(?P<submission>\d+)/raw$",
         submission.SubmissionSourceRaw.as_view(),
@@ -383,10 +398,41 @@ urlpatterns = [
                     name="submission_status",
                 ),
                 url(r"^/abort$", submission.abort_submission, name="submission_abort"),
-                url(r"^/html$", submission.single_submission),
             ]
         ),
     ),
+    url(
+        r"^test_formatter/",
+        include(
+            [
+                url(
+                    r"^$",
+                    login_required(test_formatter.TestFormatter.as_view()),
+                    name="test_formatter",
+                ),
+                url(
+                    r"^edit_page$",
+                    login_required(test_formatter.EditTestFormatter.as_view()),
+                    name="test_formatter_edit",
+                ),
+                url(
+                    r"^download_page$",
+                    login_required(test_formatter.DownloadTestFormatter.as_view()),
+                    name="test_formatter_download",
+                ),
+            ]
+        ),
+    ),
+    url(
+        r"^markdown_editor/",
+        markdown_editor.MarkdownEditor.as_view(),
+        name="markdown_editor",
+    ),
+    url(
+        r"^submission_source_file/(?P<filename>(\w|\.)+)",
+        submission.SubmissionSourceFileView.as_view(),
+        name="submission_source_file",
+    ),
     url(
         r"^users/",
         include(
@@ -441,6 +487,7 @@ urlpatterns = [
                         reverse("all_user_submissions", args=[user])
                     ),
                 ),
+                url(r"^/toggle_follow/", user.toggle_follow, name="user_toggle_follow"),
                 url(
                     r"^/$",
                     lambda _, user: HttpResponsePermanentRedirect(
@@ -457,6 +504,8 @@ urlpatterns = [
     url(r"^comments/upvote/$", comment.upvote_comment, name="comment_upvote"),
     url(r"^comments/downvote/$", comment.downvote_comment, name="comment_downvote"),
     url(r"^comments/hide/$", comment.comment_hide, name="comment_hide"),
+    url(r"^comments/get_replies/$", comment.get_replies, name="comment_get_replies"),
+    url(r"^comments/show_more/$", comment.get_show_more, name="comment_show_more"),
     url(
         r"^comments/(?P<id>\d+)/",
         include(
@@ -486,6 +535,58 @@ urlpatterns = [
         ),
     ),
     url(r"^contests/", paged_list_view(contests.ContestList, "contest_list")),
+    url(
+        r"^contests/summary/(?P<key>\w+)/",
+        paged_list_view(contests.ContestsSummaryView, "contests_summary"),
+    ),
+    url(
+        r"^contests/official",
+        paged_list_view(contests.OfficialContestList, "official_contest_list"),
+    ),
+    url(r"^courses/", paged_list_view(course.CourseList, "course_list")),
+    url(
+        r"^course/(?P<slug>[\w-]*)",
+        include(
+            [
+                url(r"^$", course.CourseDetail.as_view(), name="course_detail"),
+                url(
+                    r"^/lesson/(?P<id>\d+)$",
+                    course.CourseLessonDetail.as_view(),
+                    name="course_lesson_detail",
+                ),
+                url(
+                    r"^/edit_lessons$",
+                    course.EditCourseLessonsView.as_view(),
+                    name="edit_course_lessons",
+                ),
+                url(
+                    r"^/grades$",
+                    course.CourseStudentResults.as_view(),
+                    name="course_grades",
+                ),
+                url(
+                    r"^/grades/lesson/(?P<id>\d+)$",
+                    course.CourseStudentResultsLesson.as_view(),
+                    name="course_grades_lesson",
+                ),
+                url(
+                    r"^/add_contest$",
+                    course.AddCourseContest.as_view(),
+                    name="add_course_contest",
+                ),
+                url(
+                    r"^/edit_contest/(?P<contest>\w+)$",
+                    course.EditCourseContest.as_view(),
+                    name="edit_course_contest",
+                ),
+                url(
+                    r"^/contests$",
+                    course.CourseContestList.as_view(),
+                    name="course_contest_list",
+                ),
+            ]
+        ),
+    ),
     url(
         r"^contests/(?P<year>\d+)/(?P<month>\d+)/$",
         contests.ContestCalendar.as_view(),
@@ -528,21 +629,9 @@ urlpatterns = [
                     contests.ContestFinalRanking.as_view(),
                     name="contest_final_ranking",
                 ),
-                url(
-                    r"^/ranking/ajax$",
-                    contests.contest_ranking_ajax,
-                    name="contest_ranking_ajax",
-                ),
                 url(r"^/join$", contests.ContestJoin.as_view(), name="contest_join"),
                 url(r"^/leave$", contests.ContestLeave.as_view(), name="contest_leave"),
                 url(r"^/stats$", contests.ContestStats.as_view(), name="contest_stats"),
-                url(
-                    r"^/rank/(?P<problem>\w+)/",
-                    paged_list_view(
-                        ranked_submission.ContestRankedSubmission,
-                        "contest_ranked_submissions",
-                    ),
-                ),
                 url(
                     r"^/submissions/(?P<user>\w+)/(?P<problem>\w+)",
                     paged_list_view(
@@ -556,6 +645,13 @@ urlpatterns = [
                         "contest_user_submissions_ajax",
                     ),
                 ),
+                url(
+                    r"^/submissions",
+                    paged_list_view(
+                        submission.ContestSubmissions,
+                        "contest_submissions",
+                    ),
+                ),
                 url(
                     r"^/participations$",
                     contests.ContestParticipationList.as_view(),
@@ -751,7 +847,7 @@ urlpatterns = [
             ]
         ),
     ),
-    url(r"^blog/", paged_list_view(blog.PostList, "blog_post_list")),
+    url(r"^blog/", blog.PostList.as_view(), name="blog_post_list"),
     url(r"^post/(?P<id>\d+)-(?P<slug>.*)$", blog.PostView.as_view(), name="blog_post"),
     url(r"^license/(?P<key>[-\w.]+)$", license.LicenseDetail.as_view(), name="license"),
     url(
@@ -821,6 +917,11 @@ urlpatterns = [
                                 AssigneeSelect2View.as_view(),
                                 name="ticket_assignee_select2_ajax",
                             ),
+                            url(
+                                r"^problem_authors$",
+                                ProblemAuthorSearchSelect2View.as_view(),
+                                name="problem_authors_select2_ajax",
+                            ),
                         ]
                     ),
                 ),
@@ -879,19 +980,6 @@ urlpatterns = [
             ]
         ),
     ),
-    url(
-        r"^feed/",
-        include(
-            [
-                url(r"^problems/rss/$", ProblemFeed(), name="problem_rss"),
-                url(r"^problems/atom/$", AtomProblemFeed(), name="problem_atom"),
-                url(r"^comment/rss/$", CommentFeed(), name="comment_rss"),
-                url(r"^comment/atom/$", AtomCommentFeed(), name="comment_atom"),
-                url(r"^blog/rss/$", BlogFeed(), name="blog_rss"),
-                url(r"^blog/atom/$", AtomBlogFeed(), name="blog_atom"),
-            ]
-        ),
-    ),
     url(
         r"^stats/",
         include(
@@ -992,9 +1080,6 @@ urlpatterns = [
                 url(
                     r"^contest/$", ContestSelect2View.as_view(), name="contest_select2"
                 ),
-                url(
-                    r"^comment/$", CommentSelect2View.as_view(), name="comment_select2"
-                ),
             ]
         ),
     ),
@@ -1030,6 +1115,7 @@ urlpatterns = [
                     name="chat",
                 ),
                 url(r"^delete/$", chat.delete_message, name="delete_chat_message"),
+                url(r"^mute/$", chat.mute_message, name="mute_chat_message"),
                 url(r"^post/$", chat.post_message, name="post_chat_message"),
                 url(r"^ajax$", chat.chat_message_ajax, name="chat_message_ajax"),
                 url(
@@ -1069,13 +1155,37 @@ urlpatterns = [
                     internal.InternalProblem.as_view(),
                     name="internal_problem",
                 ),
+                url(
+                    r"^problem_votes$",
+                    internal.get_problem_votes,
+                    name="internal_problem_votes",
+                ),
+                url(
+                    r"^request_time$",
+                    internal.InternalRequestTime.as_view(),
+                    name="internal_request_time",
+                ),
+                url(
+                    r"^request_time_detail$",
+                    internal.InternalRequestTimeDetail.as_view(),
+                    name="internal_request_time_detail",
+                ),
+                url(
+                    r"^internal_slow_request$",
+                    internal.InternalSlowRequest.as_view(),
+                    name="internal_slow_request",
+                ),
+                url(
+                    r"^internal_slow_request_detail$",
+                    internal.InternalSlowRequestDetail.as_view(),
+                    name="internal_slow_request_detail",
+                ),
             ]
         ),
     ),
     url(
         r"^notifications/",
-        login_required(notification.NotificationList.as_view()),
+        paged_list_view(notification.NotificationList, "notification"),
-        name="notification",
     ),
     url(
         r"^import_users/",
@@ -1105,6 +1215,7 @@ urlpatterns = [
         ),
     ),
     url(r"^resolver/(?P<contest>\w+)", resolver.Resolver.as_view(), name="resolver"),
+    url(r"^upload/$", custom_file_upload.file_upload, name="custom_file_upload"),
 ] + url_static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
 
 # if hasattr(settings, "INTERNAL_IPS"):
@@ -1132,6 +1243,7 @@ favicon_paths = [
     "favicon-32x32.png",
     "favicon-16x16.png",
     "android-chrome-192x192.png",
+    "android-chrome-512x512.png",
     "android-chrome-48x48.png",
     "mstile-310x150.png",
     "apple-touch-icon-144x144.png",

judge/admin/__init__.py

@@ -1,8 +1,14 @@
 from django.contrib import admin
 from django.contrib.admin.models import LogEntry
+from django.contrib.auth.models import User
 
 from judge.admin.comments import CommentAdmin
-from judge.admin.contest import ContestAdmin, ContestParticipationAdmin, ContestTagAdmin
+from judge.admin.contest import (
+    ContestAdmin,
+    ContestParticipationAdmin,
+    ContestTagAdmin,
+    ContestsSummaryAdmin,
+)
 from judge.admin.interface import (
     BlogPostAdmin,
     LicenseAdmin,
@@ -11,12 +17,18 @@ from judge.admin.interface import (
 )
 from judge.admin.organization import OrganizationAdmin, OrganizationRequestAdmin
 from judge.admin.problem import ProblemAdmin, ProblemPointsVoteAdmin
-from judge.admin.profile import ProfileAdmin
+from judge.admin.profile import ProfileAdmin, UserAdmin
 from judge.admin.runtime import JudgeAdmin, LanguageAdmin
 from judge.admin.submission import SubmissionAdmin
-from judge.admin.taxon import ProblemGroupAdmin, ProblemTypeAdmin
+from judge.admin.taxon import (
+    ProblemGroupAdmin,
+    ProblemTypeAdmin,
+    OfficialContestCategoryAdmin,
+    OfficialContestLocationAdmin,
+)
 from judge.admin.ticket import TicketAdmin
 from judge.admin.volunteer import VolunteerProblemVoteAdmin
+from judge.admin.course import CourseAdmin
 from judge.models import (
     BlogPost,
     Comment,
@@ -39,6 +51,10 @@ from judge.models import (
     Submission,
     Ticket,
     VolunteerProblemVote,
+    Course,
+    ContestsSummary,
+    OfficialContestCategory,
+    OfficialContestLocation,
 )
 
 
@@ -64,3 +80,9 @@ admin.site.register(Profile, ProfileAdmin)
 admin.site.register(Submission, SubmissionAdmin)
 admin.site.register(Ticket, TicketAdmin)
 admin.site.register(VolunteerProblemVote, VolunteerProblemVoteAdmin)
+admin.site.register(Course, CourseAdmin)
+admin.site.unregister(User)
+admin.site.register(User, UserAdmin)
+admin.site.register(ContestsSummary, ContestsSummaryAdmin)
+admin.site.register(OfficialContestCategory, OfficialContestCategoryAdmin)
+admin.site.register(OfficialContestLocation, OfficialContestLocationAdmin)

judge/admin/comments.py

@@ -12,7 +12,6 @@ class CommentForm(ModelForm):
     class Meta:
         widgets = {
             "author": AdminHeavySelect2Widget(data_view="profile_select2"),
-            "parent": AdminHeavySelect2Widget(data_view="comment_select2"),
         }
         if HeavyPreviewAdminPageDownWidget is not None:
             widgets["body"] = HeavyPreviewAdminPageDownWidget(
@@ -22,12 +21,24 @@ class CommentForm(ModelForm):
 
 class CommentAdmin(VersionAdmin):
     fieldsets = (
-        (None, {"fields": ("author", "page", "parent", "score", "hidden")}),
+        (
+            None,
+            {
+                "fields": (
+                    "author",
+                    "parent",
+                    "score",
+                    "hidden",
+                    "content_type",
+                    "object_id",
+                )
+            },
+        ),
         ("Content", {"fields": ("body",)}),
     )
-    list_display = ["author", "linked_page", "time"]
+    list_display = ["author", "linked_object", "time"]
-    search_fields = ["author__user__username", "page", "body"]
+    search_fields = ["author__user__username", "body"]
-    readonly_fields = ["score"]
+    readonly_fields = ["score", "parent"]
     actions = ["hide_comment", "unhide_comment"]
     list_filter = ["hidden"]
     actions_on_top = True
@@ -66,16 +77,6 @@ class CommentAdmin(VersionAdmin):
 
     unhide_comment.short_description = _("Unhide comments")
 
-    def linked_page(self, obj):
-        link = obj.link
-        if link is not None:
-            return format_html('<a href="{0}">{1}</a>', link, obj.page)
-        else:
-            return format_html("{0}", obj.page)
-
-    linked_page.short_description = _("Associated page")
-    linked_page.admin_order_field = "page"
-
     def save_model(self, request, obj, form, change):
         super(CommentAdmin, self).save_model(request, obj, form, change)
         if obj.hidden:

judge/admin/contest.py

@@ -14,7 +14,14 @@ from reversion.admin import VersionAdmin
 from reversion_compare.admin import CompareVersionAdmin
 
 from django_ace import AceWidget
-from judge.models import Contest, ContestProblem, ContestSubmission, Profile, Rating
+from judge.models import (
+    Contest,
+    ContestProblem,
+    ContestSubmission,
+    Profile,
+    Rating,
+    OfficialContest,
+)
 from judge.ratings import rate_contest
 from judge.widgets import (
     AdminHeavySelect2MultipleWidget,
@@ -24,6 +31,8 @@ from judge.widgets import (
     AdminSelect2Widget,
     HeavyPreviewAdminPageDownWidget,
 )
+from judge.views.contests import recalculate_contest_summary_result
+from judge.utils.contest import maybe_trigger_contest_rescore
 
 
 class AdminHeavySelect2Widget(AdminHeavySelect2Widget):
@@ -71,7 +80,6 @@ class ContestProblemInlineForm(ModelForm):
             "hidden_subtasks": TextInput(attrs={"size": "3"}),
             "points": TextInput(attrs={"size": "1"}),
             "order": TextInput(attrs={"size": "1"}),
-            "output_prefix_override": TextInput(attrs={"size": "1"}),
         }
 
 
@@ -86,7 +94,7 @@ class ContestProblemInline(admin.TabularInline):
         "is_pretested",
         "max_submissions",
         "hidden_subtasks",
-        "output_prefix_override",
+        "show_testcases",
         "order",
         "rejudge_column",
     )
@@ -149,6 +157,26 @@ class ContestForm(ModelForm):
             )
 
 
+class OfficialContestInlineForm(ModelForm):
+    class Meta:
+        widgets = {
+            "category": AdminSelect2Widget,
+            "location": AdminSelect2Widget,
+        }
+
+
+class OfficialContestInline(admin.StackedInline):
+    fields = (
+        "category",
+        "year",
+        "location",
+    )
+    model = OfficialContest
+    can_delete = True
+    form = OfficialContestInlineForm
+    extra = 0
+
+
 class ContestAdmin(CompareVersionAdmin):
     fieldsets = (
         (None, {"fields": ("key", "name", "authors", "curators", "testers")}),
@@ -159,9 +187,11 @@ class ContestAdmin(CompareVersionAdmin):
                     "is_visible",
                     "use_clarifications",
                     "hide_problem_tags",
+                    "public_scoreboard",
                     "scoreboard_visibility",
                     "run_pretests_only",
                     "points_precision",
+                    "rate_limit",
                 )
             },
         ),
@@ -221,7 +251,7 @@ class ContestAdmin(CompareVersionAdmin):
         "user_count",
     )
     search_fields = ("key", "name")
-    inlines = [ContestProblemInline]
+    inlines = [ContestProblemInline, OfficialContestInline]
     actions_on_top = True
     actions_on_bottom = True
     form = ContestForm
@@ -281,31 +311,14 @@ class ContestAdmin(CompareVersionAdmin):
 
         super().save_model(request, obj, form, change)
 
-        # We need this flag because `save_related` deals with the inlines, but does not know if we have already rescored
-        self._rescored = False
-        if form.changed_data and any(
-            f in form.changed_data
-            for f in (
-                "start_time",
-                "end_time",
-                "time_limit",
-                "format_config",
-                "format_name",
-                "freeze_after",
-            )
-        ):
-            self._rescore(obj.key)
-            self._rescored = True
-
     def save_related(self, request, form, formsets, change):
         super().save_related(request, form, formsets, change)
         # Only rescored if we did not already do so in `save_model`
-        if not self._rescored and any(formset.has_changed() for formset in formsets):
+        formset_changed = False
-            self._rescore(form.cleaned_data["key"])
+        if any(formset.has_changed() for formset in formsets):
-        obj = form.instance
+            formset_changed = True
-        obj.is_organization_private = obj.organizations.count() > 0
+
-        obj.is_private = obj.private_contestants.count() > 0
+        maybe_trigger_contest_rescore(form, form.instance, formset_changed)
-        obj.save()
 
     def has_change_permission(self, request, obj=None):
         if not request.user.has_perm("judge.edit_own_contest"):
@@ -314,11 +327,6 @@ class ContestAdmin(CompareVersionAdmin):
             return True
         return obj.is_editable_by(request.user)
 
-    def _rescore(self, contest_key):
-        from judge.tasks import rescore_contest
-
-        transaction.on_commit(rescore_contest.s(contest_key).delay)
-
     def make_visible(self, request, queryset):
         if not request.user.has_perm("judge.change_contest_visibility"):
             queryset = queryset.filter(
@@ -502,3 +510,25 @@ class ContestParticipationAdmin(admin.ModelAdmin):
 
     show_virtual.short_description = _("virtual")
     show_virtual.admin_order_field = "virtual"
+
+
+class ContestsSummaryForm(ModelForm):
+    class Meta:
+        widgets = {
+            "contests": AdminHeavySelect2MultipleWidget(
+                data_view="contest_select2", attrs={"style": "width: 100%"}
+            ),
+        }
+
+
+class ContestsSummaryAdmin(admin.ModelAdmin):
+    fields = ("key", "contests", "scores")
+    list_display = ("key",)
+    search_fields = ("key", "contests__key")
+    form = ContestsSummaryForm
+
+    def save_model(self, request, obj, form, change):
+        super(ContestsSummaryAdmin, self).save_model(request, obj, form, change)
+        obj.refresh_from_db()
+        obj.results = recalculate_contest_summary_result(request, obj)
+        obj.save()

judge/admin/course.py

@@ -0,0 +1,52 @@
+from django.contrib import admin
+from django.utils.html import format_html
+from django.urls import reverse, reverse_lazy
+from django.utils.translation import gettext, gettext_lazy as _, ungettext
+from django.forms import ModelForm
+
+from judge.models import Course, CourseRole
+from judge.widgets import AdminSelect2MultipleWidget
+from judge.widgets import (
+    AdminHeavySelect2MultipleWidget,
+    AdminHeavySelect2Widget,
+    HeavyPreviewAdminPageDownWidget,
+    AdminSelect2Widget,
+)
+
+
+class CourseRoleInlineForm(ModelForm):
+    class Meta:
+        widgets = {
+            "user": AdminHeavySelect2Widget(
+                data_view="profile_select2", attrs={"style": "width: 100%"}
+            ),
+            "role": AdminSelect2Widget,
+        }
+
+
+class CourseRoleInline(admin.TabularInline):
+    model = CourseRole
+    extra = 1
+    form = CourseRoleInlineForm
+
+
+class CourseForm(ModelForm):
+    class Meta:
+        widgets = {
+            "organizations": AdminHeavySelect2MultipleWidget(
+                data_view="organization_select2"
+            ),
+            "about": HeavyPreviewAdminPageDownWidget(
+                preview=reverse_lazy("blog_preview")
+            ),
+        }
+
+
+class CourseAdmin(admin.ModelAdmin):
+    prepopulated_fields = {"slug": ("name",)}
+    inlines = [
+        CourseRoleInline,
+    ]
+    list_display = ("name", "is_public", "is_open")
+    search_fields = ("name",)
+    form = CourseForm

judge/admin/interface.py

@@ -53,7 +53,8 @@ class NavigationBarAdmin(DraggableMPTTAdmin):
 class BlogPostForm(ModelForm):
     def __init__(self, *args, **kwargs):
         super(BlogPostForm, self).__init__(*args, **kwargs)
-        self.fields["authors"].widget.can_add_related = False
+        if "authors" in self.fields:
+            self.fields["authors"].widget.can_add_related = False
 
     class Meta:
         widgets = {

judge/admin/organization.py

@@ -33,7 +33,6 @@ class OrganizationAdmin(VersionAdmin):
         "short_name",
         "is_open",
         "about",
-        "logo_override_image",
         "slots",
         "registrant",
         "creation_date",

judge/admin/problem.py

@@ -1,8 +1,8 @@
 from operator import attrgetter
 
 from django import forms
-from django.contrib import admin
+from django.contrib import admin, messages
-from django.db import transaction
+from django.db import transaction, IntegrityError
 from django.db.models import Q, Avg, Count
 from django.db.models.aggregates import StdDev
 from django.forms import ModelForm, TextInput
@@ -11,6 +11,7 @@ from django.utils.html import format_html
 from django.utils.translation import gettext, gettext_lazy as _, ungettext
 from django_ace import AceWidget
 from django.utils import timezone
+from django.core.exceptions import ValidationError
 
 from reversion.admin import VersionAdmin
 from reversion_compare.admin import CompareVersionAdmin
@@ -25,6 +26,7 @@ from judge.models import (
     Solution,
     Notification,
 )
+from judge.models.notification import make_notification
 from judge.widgets import (
     AdminHeavySelect2MultipleWidget,
     AdminSelect2MultipleWidget,
@@ -32,6 +34,7 @@ from judge.widgets import (
     CheckboxSelectMultipleWithSelectAll,
     HeavyPreviewAdminPageDownWidget,
 )
+from judge.utils.problems import user_editable_ids, user_tester_ids
 
 MEMORY_UNITS = (("KB", "KB"), ("MB", "MB"))
 
@@ -54,6 +57,16 @@ class ProblemForm(ModelForm):
             }
         )
 
+    def clean_code(self):
+        code = self.cleaned_data.get("code")
+        if self.instance.pk:
+            return code
+
+        if Problem.objects.filter(code=code).exists():
+            raise ValidationError(_("A problem with this code already exists."))
+
+        return code
+
     def clean(self):
         memory_unit = self.cleaned_data.get("memory_unit", "KB")
         if memory_unit == "MB":
@@ -129,6 +142,7 @@ class LanguageLimitInline(admin.TabularInline):
     model = LanguageLimit
     fields = ("language", "time_limit", "memory_limit", "memory_unit")
     form = LanguageLimitInlineForm
+    extra = 0
 
 
 class LanguageTemplateInlineForm(ModelForm):
@@ -143,6 +157,7 @@ class LanguageTemplateInline(admin.TabularInline):
     model = LanguageTemplate
     fields = ("language", "source")
     form = LanguageTemplateInlineForm
+    extra = 0
 
 
 class ProblemSolutionForm(ModelForm):
@@ -358,32 +373,47 @@ class ProblemAdmin(CompareVersionAdmin):
             self._rescore(request, obj.id)
 
     def save_related(self, request, form, formsets, change):
+        editors = set()
+        testers = set()
+        if "curators" in form.changed_data or "authors" in form.changed_data:
+            editors = set(form.instance.editor_ids)
+        if "testers" in form.changed_data:
+            testers = set(form.instance.tester_ids)
+
         super().save_related(request, form, formsets, change)
-        # Only rescored if we did not already do so in `save_model`
         obj = form.instance
         obj.curators.add(request.profile)
-        obj.is_organization_private = obj.organizations.count() > 0
+
-        obj.save()
+        if "curators" in form.changed_data or "authors" in form.changed_data:
+            del obj.editor_ids
+            editors = editors.union(set(obj.editor_ids))
+        if "testers" in form.changed_data:
+            del obj.tester_ids
+            testers = testers.union(set(obj.tester_ids))
+
+        for editor in editors:
+            user_editable_ids.dirty(editor)
+        for tester in testers:
+            user_tester_ids.dirty(tester)
+
         # Create notification
-        if "is_public" in form.changed_data:
+        if "is_public" in form.changed_data or "organizations" in form.changed_data:
             users = set(obj.authors.all())
             users = users.union(users, set(obj.curators.all()))
+            orgs = []
             if obj.organizations.count() > 0:
                 for org in obj.organizations.all():
                     users = users.union(users, set(org.admins.all()))
+                    orgs.append(org.name)
             else:
                 admins = Profile.objects.filter(user__is_superuser=True).all()
                 users = users.union(users, admins)
             link = reverse_lazy("admin:judge_problem_change", args=(obj.id,))
             html = f'<a href="{link}">{obj.name}</a>'
-            for user in users:
+            category = "Problem public: " + str(obj.is_public)
-                notification = Notification(
+            if orgs:
-                    owner=user,
+                category += " (" + ", ".join(orgs) + ")"
-                    html_link=html,
+            make_notification(users, category, html, request.profile)
-                    category="Problem public: " + str(obj.is_public),
-                    author=request.profile,
-                )
-                notification.save()
 
     def construct_change_message(self, request, form, *args, **kwargs):
         if form.cleaned_data.get("change_message"):

judge/admin/profile.py

@@ -1,13 +1,20 @@
 from django.contrib import admin
-from django.forms import ModelForm
+from django.forms import ModelForm, CharField, TextInput
 from django.utils.html import format_html
 from django.utils.translation import gettext, gettext_lazy as _, ungettext
-from reversion.admin import VersionAdmin
+from django.contrib.auth.admin import UserAdmin as OldUserAdmin
+from django.core.exceptions import ValidationError
+from django.contrib.auth.forms import UserChangeForm
 
 from django_ace import AceWidget
-from judge.models import Profile
+
+from judge.models import Profile, ProfileInfo
 from judge.widgets import AdminPagedownWidget, AdminSelect2Widget
 
+from reversion.admin import VersionAdmin
+
+import re
+
 
 class ProfileForm(ModelForm):
     def __init__(self, *args, **kwargs):
@@ -53,6 +60,13 @@ class TimezoneFilter(admin.SimpleListFilter):
         return queryset.filter(timezone=self.value())
 
 
+class ProfileInfoInline(admin.StackedInline):
+    model = ProfileInfo
+    can_delete = False
+    verbose_name_plural = "profile info"
+    fk_name = "profile"
+
+
 class ProfileAdmin(VersionAdmin):
     fields = (
         "user",
@@ -62,15 +76,12 @@ class ProfileAdmin(VersionAdmin):
         "timezone",
         "language",
         "ace_theme",
-        "math_engine",
         "last_access",
         "ip",
         "mute",
         "is_unlisted",
-        "is_banned_problem_voting",
         "notes",
         "is_totp_enabled",
-        "user_script",
         "current_contest",
     )
     readonly_fields = ("user",)
@@ -91,6 +102,7 @@ class ProfileAdmin(VersionAdmin):
     actions_on_top = True
     actions_on_bottom = True
     form = ProfileForm
+    inlines = (ProfileInfoInline,)
 
     def get_queryset(self, request):
         return super(ProfileAdmin, self).get_queryset(request).select_related("user")
@@ -125,7 +137,7 @@ class ProfileAdmin(VersionAdmin):
     admin_user_admin.short_description = _("User")
 
     def email(self, obj):
-        return obj.user.email
+        return obj.email
 
     email.admin_order_field = "user__email"
     email.short_description = _("Email")
@@ -159,11 +171,57 @@ class ProfileAdmin(VersionAdmin):
 
     recalculate_points.short_description = _("Recalculate scores")
 
-    def get_form(self, request, obj=None, **kwargs):
+
-        form = super(ProfileAdmin, self).get_form(request, obj, **kwargs)
+class UserForm(UserChangeForm):
-        if "user_script" in form.base_fields:
+    def __init__(self, *args, **kwargs):
-            # form.base_fields['user_script'] does not exist when the user has only view permission on the model.
+        super().__init__(*args, **kwargs)
-            form.base_fields["user_script"].widget = AceWidget(
+        self.fields["username"].help_text = _(
-                "javascript", request.profile.ace_theme
+            "Username can only contain letters, digits, and underscores."
+        )
+
+    def clean_username(self):
+        username = self.cleaned_data.get("username")
+        if not re.match(r"^\w+$", username):
+            raise ValidationError(
+                _("Username can only contain letters, digits, and underscores.")
             )
-        return form
+        return username
+
+
+class UserAdmin(OldUserAdmin):
+    # Customize the fieldsets for adding and editing users
+    form = UserForm
+    fieldsets = (
+        (None, {"fields": ("username", "password")}),
+        ("Personal Info", {"fields": ("first_name", "last_name", "email")}),
+        (
+            "Permissions",
+            {
+                "fields": (
+                    "is_active",
+                    "is_staff",
+                    "is_superuser",
+                    "groups",
+                    "user_permissions",
+                )
+            },
+        ),
+        ("Important dates", {"fields": ("last_login", "date_joined")}),
+    )
+
+    readonly_fields = ("last_login", "date_joined")
+
+    def get_readonly_fields(self, request, obj=None):
+        fields = self.readonly_fields
+        if not request.user.is_superuser:
+            fields += (
+                "is_staff",
+                "is_active",
+                "is_superuser",
+                "groups",
+                "user_permissions",
+            )
+        return fields
+
+    def has_add_permission(self, request):
+        return False

judge/admin/submission.py

@@ -194,18 +194,16 @@ class SubmissionAdmin(admin.ModelAdmin):
     def has_add_permission(self, request):
         return False
 
-    def has_change_permission(self, request, obj=None):
-        if not request.user.has_perm("judge.edit_own_problem"):
-            return False
-        if request.user.has_perm("judge.edit_all_problem") or obj is None:
-            return True
-        return obj.problem.is_editor(request.profile)
-
     def lookup_allowed(self, key, value):
         return super(SubmissionAdmin, self).lookup_allowed(key, value) or key in (
             "problem__code",
         )
 
+    def save_model(self, request, obj, form, change):
+        super().save_model(request, obj, form, change)
+        if "case_points" in form.changed_data or "case_total" in form.changed_data:
+            obj.update_contest()
+
     def judge(self, request, queryset):
         if not request.user.has_perm(
             "judge.rejudge_submission"

judge/admin/taxon.py

@@ -56,3 +56,11 @@ class ProblemTypeAdmin(admin.ModelAdmin):
             [o.pk for o in obj.problem_set.all()] if obj else []
         )
         return super(ProblemTypeAdmin, self).get_form(request, obj, **kwargs)
+
+
+class OfficialContestCategoryAdmin(admin.ModelAdmin):
+    fields = ("name",)
+
+
+class OfficialContestLocationAdmin(admin.ModelAdmin):
+    fields = ("name",)

judge/apps.py

@@ -12,7 +12,7 @@ class JudgeAppConfig(AppConfig):
         #          OPERATIONS MAY HAVE SIDE EFFECTS.
         #          DO NOT REMOVE THINKING THE IMPORT IS UNUSED.
         # noinspection PyUnresolvedReferences
-        from . import signals, jinja2  # noqa: F401, imported for side effects
+        from . import models, signals, jinja2  # noqa: F401, imported for side effects
 
         from django.contrib.flatpages.models import FlatPage
         from django.contrib.flatpages.admin import FlatPageAdmin

judge/authentication.py

@@ -0,0 +1,48 @@
+from django.contrib.auth.backends import ModelBackend
+from django.contrib.auth.models import User
+from django.contrib.auth.forms import PasswordChangeForm
+from django.contrib.auth.views import PasswordChangeView
+from django.urls import reverse_lazy
+from django.utils.translation import gettext_lazy as _
+
+
+class CustomModelBackend(ModelBackend):
+    def authenticate(self, request, username=None, password=None, **kwargs):
+        try:
+            # Check if the username is an email
+            user = User.objects.get(username=username)
+        except User.DoesNotExist:
+            # If the username is not an email, try authenticating with the username field
+            user = User.objects.filter(email=username).first()
+
+        if user and user.check_password(password):
+            return user
+
+
+class CustomPasswordChangeForm(PasswordChangeForm):
+    def __init__(self, *args, **kwargs):
+        super(CustomPasswordChangeForm, self).__init__(*args, **kwargs)
+        if not self.user.has_usable_password():
+            self.fields.pop("old_password")
+
+    def clean_old_password(self):
+        if "old_password" not in self.cleaned_data:
+            return
+        return super(CustomPasswordChangeForm, self).clean_old_password()
+
+    def clean(self):
+        cleaned_data = super(CustomPasswordChangeForm, self).clean()
+        if "old_password" not in self.cleaned_data and not self.errors:
+            cleaned_data["old_password"] = ""
+        return cleaned_data
+
+
+class CustomPasswordChangeView(PasswordChangeView):
+    form_class = CustomPasswordChangeForm
+    success_url = reverse_lazy("password_change_done")
+    template_name = "registration/password_change_form.html"
+
+    def get_form_kwargs(self):
+        kwargs = super(CustomPasswordChangeView, self).get_form_kwargs()
+        kwargs["user"] = self.request.user
+        return kwargs

judge/bridge/judge_handler.py

@@ -10,10 +10,11 @@ from django import db
 from django.conf import settings
 from django.utils import timezone
 from django.db.models import F
+from django.core.cache import cache
 
 from judge import event_poster as event
 from judge.bridge.base_handler import ZlibPacketHandler, proxy_list
-from judge.caching import finished_submission
+from judge.utils.problems import finished_submission
 from judge.models import (
     Judge,
     Language,
@@ -23,6 +24,8 @@ from judge.models import (
     Submission,
     SubmissionTestCase,
 )
+from judge.bridge.utils import VanishedSubmission
+from judge.caching import cache_wrapper
 
 logger = logging.getLogger("judge.bridge")
 json_log = logging.getLogger("judge.json.bridge")
@@ -62,10 +65,10 @@ class JudgeHandler(ZlibPacketHandler):
             "handshake": self.on_handshake,
         }
         self._working = False
+        self._working_data = {}
         self._no_response_job = None
-        self._problems = []
         self.executors = {}
-        self.problems = {}
+        self.problems = set()
         self.latency = None
         self.time_delta = None
         self.load = 1e100
@@ -91,12 +94,6 @@ class JudgeHandler(ZlibPacketHandler):
 
     def on_disconnect(self):
         self._stop_ping.set()
-        if self._working:
-            logger.error(
-                "Judge %s disconnected while handling submission %s",
-                self.name,
-                self._working,
-            )
         self.judges.remove(self)
         if self.name is not None:
             self._disconnected()
@@ -108,24 +105,32 @@ class JudgeHandler(ZlibPacketHandler):
             self._make_json_log(action="disconnect", info="judge disconnected")
         )
         if self._working:
-            Submission.objects.filter(id=self._working).update(
+            self.judges.judge(
-                status="IE", result="IE", error=""
+                self._working,
-            )
+                self._working_data["problem"],
-            json_log.error(
+                self._working_data["language"],
-                self._make_json_log(
+                self._working_data["source"],
-                    sub=self._working,
+                None,
-                    action="close",
+                0,
-                    info="IE due to shutdown on grading",
-                )
             )
 
     def _authenticate(self, id, key):
         try:
-            judge = Judge.objects.get(name=id, is_blocked=False)
+            judge = Judge.objects.get(name=id)
         except Judge.DoesNotExist:
-            result = False
+            if settings.BRIDGED_AUTO_CREATE_JUDGE:
+                judge = Judge()
+                judge.name = id
+                judge.auth_key = key
+                judge.save()
+                result = True
+            else:
+                result = False
         else:
-            result = hmac.compare_digest(judge.auth_key, key)
+            if judge.is_blocked:
+                result = False
+            else:
+                result = hmac.compare_digest(judge.auth_key, key)
 
         if not result:
             json_log.warning(
@@ -135,11 +140,52 @@ class JudgeHandler(ZlibPacketHandler):
             )
         return result
 
+    def _update_supported_problems(self, problem_packet):
+        # problem_packet is a dict {code: mtimes} from judge-server
+        self.problems = set(p for p, _ in problem_packet)
+
+    def _update_judge_problems(self):
+        chunk_size = 500
+
+        target_problem_codes = self.problems
+        current_problems = _get_judge_problems(self.judge)
+
+        updated = False
+        problems_to_add = list(target_problem_codes - current_problems)
+        problems_to_remove = list(current_problems - target_problem_codes)
+
+        if problems_to_add:
+            for i in range(0, len(problems_to_add), chunk_size):
+                chunk = problems_to_add[i : i + chunk_size]
+                problem_ids = Problem.objects.filter(code__in=chunk).values_list(
+                    "id", flat=True
+                )
+                if not problem_ids:
+                    continue
+                logger.info("%s: Add %d problems", self.name, len(problem_ids))
+                self.judge.problems.add(*problem_ids)
+                updated = True
+
+        if problems_to_remove:
+            for i in range(0, len(problems_to_remove), chunk_size):
+                chunk = problems_to_remove[i : i + chunk_size]
+                problem_ids = Problem.objects.filter(code__in=chunk).values_list(
+                    "id", flat=True
+                )
+                if not problem_ids:
+                    continue
+                logger.info("%s: Remove %d problems", self.name, len(problem_ids))
+                self.judge.problems.remove(*problem_ids)
+                updated = True
+
+        if updated:
+            _get_judge_problems.dirty(self.judge)
+
     def _connected(self):
         judge = self.judge = Judge.objects.get(name=self.name)
         judge.start_time = timezone.now()
         judge.online = True
-        judge.problems.set(Problem.objects.filter(code__in=list(self.problems.keys())))
+        self._update_judge_problems()
         judge.runtimes.set(Language.objects.filter(key__in=list(self.executors.keys())))
 
         # Delete now in case we somehow crashed and left some over from the last connection
@@ -174,6 +220,8 @@ class JudgeHandler(ZlibPacketHandler):
     def _disconnected(self):
         Judge.objects.filter(id=self.judge.id).update(online=False)
         RuntimeVersion.objects.filter(judge=self.judge).delete()
+        self.judge.problems.clear()
+        _get_judge_problems.dirty(self.judge)
 
     def _update_ping(self):
         try:
@@ -204,8 +252,7 @@ class JudgeHandler(ZlibPacketHandler):
             return
 
         self.timeout = 60
-        self._problems = packet["problems"]
+        self._update_supported_problems(packet["problems"])
-        self.problems = dict(self._problems)
         self.executors = packet["executors"]
         self.name = packet["id"]
 
@@ -306,7 +353,15 @@ class JudgeHandler(ZlibPacketHandler):
 
     def submit(self, id, problem, language, source):
         data = self.get_related_submission_data(id)
+        if not data:
+            self._update_internal_error_submission(id, "Submission vanished")
+            raise VanishedSubmission()
         self._working = id
+        self._working_data = {
+            "problem": problem,
+            "language": language,
+            "source": source,
+        }
         self._no_response_job = threading.Timer(20, self._kill_if_no_response)
         self.send(
             {
@@ -425,14 +480,12 @@ class JudgeHandler(ZlibPacketHandler):
 
     def on_supported_problems(self, packet):
         logger.info("%s: Updated problem list", self.name)
-        self._problems = packet["problems"]
+        self._update_supported_problems(packet["problems"])
-        self.problems = dict(self._problems)
+
         if not self.working:
             self.judges.update_problems(self)
 
-        self.judge.problems.set(
+        self._update_judge_problems()
-            Problem.objects.filter(code__in=list(self.problems.keys()))
-        )
         json_log.info(
             self._make_json_log(action="update-problems", count=len(self.problems))
         )
@@ -649,8 +702,11 @@ class JudgeHandler(ZlibPacketHandler):
         self._free_self(packet)
 
         id = packet["submission-id"]
+        self._update_internal_error_submission(id, packet["message"])
+
+    def _update_internal_error_submission(self, id, message):
         if Submission.objects.filter(id=id).update(
-            status="IE", result="IE", error=packet["message"]
+            status="IE", result="IE", error=message
         ):
             event.post(
                 "sub_%s" % Submission.get_id_secret(id), {"type": "internal-error"}
@@ -658,9 +714,9 @@ class JudgeHandler(ZlibPacketHandler):
             self._post_update_submission(id, "internal-error", done=True)
             json_log.info(
                 self._make_json_log(
-                    packet,
+                    sub=id,
                     action="internal-error",
-                    message=packet["message"],
+                    message=message,
                     finish=True,
                     result="IE",
                 )
@@ -669,10 +725,10 @@ class JudgeHandler(ZlibPacketHandler):
             logger.warning("Unknown submission: %s", id)
             json_log.error(
                 self._make_json_log(
-                    packet,
+                    sub=id,
                     action="internal-error",
                     info="unknown submission",
-                    message=packet["message"],
+                    message=message,
                     finish=True,
                     result="IE",
                 )
@@ -903,3 +959,8 @@ class JudgeHandler(ZlibPacketHandler):
 
     def on_cleanup(self):
         db.connection.close()
+
+
+@cache_wrapper(prefix="gjp", timeout=3600)
+def _get_judge_problems(judge):
+    return set(judge.problems.values_list("code", flat=True))

judge/bridge/judge_list.py

@@ -3,6 +3,8 @@ from collections import namedtuple
 from operator import attrgetter
 from threading import RLock
 
+from judge.bridge.utils import VanishedSubmission
+
 try:
     from llist import dllist
 except ImportError:
@@ -39,6 +41,8 @@ class JudgeList(object):
                         )
                         try:
                             judge.submit(id, problem, language, source)
+                        except VanishedSubmission:
+                            pass
                         except Exception:
                             logger.exception(
                                 "Failed to dispatch %d (%s, %s) to %s",
@@ -89,6 +93,7 @@ class JudgeList(object):
             logger.info("Judge available after grading %d: %s", submission, judge.name)
             del self.submission_map[submission]
             judge._working = False
+            judge._working_data = {}
             self._handle_free_judge(judge)
 
     def abort(self, submission):

judge/bridge/utils.py

@@ -0,0 +1,2 @@
+class VanishedSubmission(Exception):
+    pass

judge/caching.py

@@ -1,10 +1,117 @@
-from django.core.cache import cache
+from inspect import signature
+from django.core.cache import cache, caches
+from django.db.models.query import QuerySet
+from django.core.handlers.wsgi import WSGIRequest
+
+import hashlib
+
+from judge.logging import log_debug
+
+MAX_NUM_CHAR = 50
+NONE_RESULT = "__None__"
 
 
-def finished_submission(sub):
+def arg_to_str(arg):
-    keys = ["user_complete:%d" % sub.user_id, "user_attempted:%s" % sub.user_id]
+    if hasattr(arg, "id"):
-    if hasattr(sub, "contest"):
+        return str(arg.id)
-        participation = sub.contest.participation
+    if isinstance(arg, list) or isinstance(arg, QuerySet):
-        keys += ["contest_complete:%d" % participation.id]
+        return hashlib.sha1(str(list(arg)).encode()).hexdigest()[:MAX_NUM_CHAR]
-        keys += ["contest_attempted:%d" % participation.id]
+    if len(str(arg)) > MAX_NUM_CHAR:
-    cache.delete_many(keys)
+        return str(arg)[:MAX_NUM_CHAR]
+    return str(arg)
+
+
+def filter_args(args_list):
+    return [x for x in args_list if not isinstance(x, WSGIRequest)]
+
+
+l0_cache = caches["l0"] if "l0" in caches else None
+
+
+def cache_wrapper(prefix, timeout=None, expected_type=None):
+    def get_key(func, *args, **kwargs):
+        args_list = list(args)
+        signature_args = list(signature(func).parameters.keys())
+        args_list += [kwargs.get(k) for k in signature_args[len(args) :]]
+        args_list = filter_args(args_list)
+        args_list = [arg_to_str(i) for i in args_list]
+        key = prefix + ":" + ":".join(args_list)
+        key = key.replace(" ", "_")
+        return key
+
+    def _get(key):
+        if not l0_cache:
+            return cache.get(key)
+        result = l0_cache.get(key)
+        if result is None:
+            result = cache.get(key)
+        return result
+
+    def _set_l0(key, value):
+        if l0_cache:
+            l0_cache.set(key, value, 30)
+
+    def _set(key, value, timeout):
+        _set_l0(key, value)
+        cache.set(key, value, timeout)
+
+    def decorator(func):
+        def _validate_type(cache_key, result):
+            if expected_type and not isinstance(result, expected_type):
+                data = {
+                    "function": f"{func.__module__}.{func.__qualname__}",
+                    "result": str(result)[:30],
+                    "expected_type": expected_type,
+                    "type": type(result),
+                    "key": cache_key,
+                }
+                log_debug("invalid_key", data)
+                return False
+            return True
+
+        def wrapper(*args, **kwargs):
+            cache_key = get_key(func, *args, **kwargs)
+            result = _get(cache_key)
+            if result is not None and _validate_type(cache_key, result):
+                _set_l0(cache_key, result)
+                if type(result) == str and result == NONE_RESULT:
+                    result = None
+                return result
+            result = func(*args, **kwargs)
+            if result is None:
+                cache_result = NONE_RESULT
+            else:
+                cache_result = result
+            _set(cache_key, cache_result, timeout)
+            return result
+
+        def dirty(*args, **kwargs):
+            cache_key = get_key(func, *args, **kwargs)
+            cache.delete(cache_key)
+            if l0_cache:
+                l0_cache.delete(cache_key)
+
+        def prefetch_multi(args_list):
+            keys = []
+            for args in args_list:
+                keys.append(get_key(func, *args))
+            results = cache.get_many(keys)
+            for key, result in results.items():
+                if result is not None:
+                    _set_l0(key, result)
+
+        def dirty_multi(args_list):
+            keys = []
+            for args in args_list:
+                keys.append(get_key(func, *args))
+            cache.delete_many(keys)
+            if l0_cache:
+                l0_cache.delete_many(keys)
+
+        wrapper.dirty = dirty
+        wrapper.prefetch_multi = prefetch_multi
+        wrapper.dirty_multi = dirty_multi
+
+        return wrapper
+
+    return decorator

judge/comments.py

@@ -1,194 +0,0 @@
-from django import forms
-from django.conf import settings
-from django.contrib.auth.decorators import login_required
-from django.contrib.contenttypes.models import ContentType
-from django.core.exceptions import ValidationError
-from django.db.models import Count, FilteredRelation, Q
-from django.db.models.expressions import F, Value
-from django.db.models.functions import Coalesce
-from django.forms import ModelForm
-from django.http import (
-    HttpResponseForbidden,
-    HttpResponseNotFound,
-    HttpResponseRedirect,
-)
-from django.urls import reverse_lazy
-from django.utils.decorators import method_decorator
-from django.utils.translation import gettext as _
-from django.views.generic import View
-from django.views.generic.base import TemplateResponseMixin
-from django.views.generic.detail import SingleObjectMixin
-from reversion import revisions
-from reversion.models import Revision, Version
-
-from judge.dblock import LockModel
-from judge.models import Comment, CommentLock, Notification
-from judge.widgets import HeavyPreviewPageDownWidget
-from judge.jinja2.reference import get_user_from_text
-
-
-def add_mention_notifications(comment):
-    user_referred = get_user_from_text(comment.body).exclude(id=comment.author.id)
-    for user in user_referred:
-        notification_ref = Notification(owner=user, comment=comment, category="Mention")
-        notification_ref.save()
-
-
-def del_mention_notifications(comment):
-    query = {"comment": comment, "category": "Mention"}
-    Notification.objects.filter(**query).delete()
-
-
-class CommentForm(ModelForm):
-    class Meta:
-        model = Comment
-        fields = ["body", "parent"]
-        widgets = {
-            "parent": forms.HiddenInput(),
-        }
-
-        if HeavyPreviewPageDownWidget is not None:
-            widgets["body"] = HeavyPreviewPageDownWidget(
-                preview=reverse_lazy("comment_preview"),
-                preview_timeout=1000,
-                hide_preview_button=True,
-            )
-
-    def __init__(self, request, *args, **kwargs):
-        self.request = request
-        super(CommentForm, self).__init__(*args, **kwargs)
-        self.fields["body"].widget.attrs.update({"placeholder": _("Comment body")})
-
-    def clean(self):
-        if self.request is not None and self.request.user.is_authenticated:
-            profile = self.request.profile
-            if profile.mute:
-                raise ValidationError(_("Your part is silent, little toad."))
-            elif (
-                not self.request.user.is_staff
-                and not profile.submission_set.filter(
-                    points=F("problem__points")
-                ).exists()
-            ):
-                raise ValidationError(
-                    _(
-                        "You need to have solved at least one problem "
-                        "before your voice can be heard."
-                    )
-                )
-        return super(CommentForm, self).clean()
-
-
-class CommentedDetailView(TemplateResponseMixin, SingleObjectMixin, View):
-    comment_page = None
-
-    def get_comment_page(self):
-        if self.comment_page is None:
-            raise NotImplementedError()
-        return self.comment_page
-
-    def is_comment_locked(self):
-        if self.request.user.has_perm("judge.override_comment_lock"):
-            return False
-        return CommentLock.objects.filter(page=self.get_comment_page()).exists() or (
-            self.request.in_contest
-            and self.request.participation.contest.use_clarifications
-        )
-
-    @method_decorator(login_required)
-    def post(self, request, *args, **kwargs):
-        self.object = self.get_object()
-        page = self.get_comment_page()
-
-        if self.is_comment_locked():
-            return HttpResponseForbidden()
-
-        parent = request.POST.get("parent")
-        if parent:
-            try:
-                parent = int(parent)
-            except ValueError:
-                return HttpResponseNotFound()
-            else:
-                if not Comment.objects.filter(
-                    hidden=False, id=parent, page=page
-                ).exists():
-                    return HttpResponseNotFound()
-
-        form = CommentForm(request, request.POST)
-        if form.is_valid():
-            comment = form.save(commit=False)
-            comment.author = request.profile
-            comment.page = page
-
-            with LockModel(
-                write=(Comment, Revision, Version), read=(ContentType,)
-            ), revisions.create_revision():
-                revisions.set_user(request.user)
-                revisions.set_comment(_("Posted comment"))
-                comment.save()
-
-            # add notification for reply
-            if comment.parent and comment.parent.author != comment.author:
-                notification_reply = Notification(
-                    owner=comment.parent.author, comment=comment, category="Reply"
-                )
-                notification_reply.save()
-
-            # add notification for page authors
-            page_authors = comment.page_object.authors.all()
-            for user in page_authors:
-                if user == comment.author:
-                    continue
-                notification = Notification(
-                    owner=user, comment=comment, category="Comment"
-                )
-                notification.save()
-            # except Exception:
-            #     pass
-
-            add_mention_notifications(comment)
-
-            return HttpResponseRedirect(request.path)
-
-        context = self.get_context_data(object=self.object, comment_form=form)
-        return self.render_to_response(context)
-
-    def get(self, request, *args, **kwargs):
-        self.object = self.get_object()
-        return self.render_to_response(
-            self.get_context_data(
-                object=self.object,
-                comment_form=CommentForm(
-                    request, initial={"page": self.get_comment_page(), "parent": None}
-                ),
-            )
-        )
-
-    def get_context_data(self, **kwargs):
-        context = super(CommentedDetailView, self).get_context_data(**kwargs)
-        queryset = Comment.objects.filter(hidden=False, page=self.get_comment_page())
-        context["has_comments"] = queryset.exists()
-        context["comment_lock"] = self.is_comment_locked()
-        queryset = (
-            queryset.select_related("author__user")
-            .defer("author__about")
-            .annotate(revisions=Count("versions"))
-        )
-
-        if self.request.user.is_authenticated:
-            profile = self.request.profile
-            queryset = queryset.annotate(
-                my_vote=FilteredRelation(
-                    "votes", condition=Q(votes__voter_id=profile.id)
-                ),
-            ).annotate(vote_score=Coalesce(F("my_vote__score"), Value(0)))
-            context["is_new_user"] = (
-                not self.request.user.is_staff
-                and not profile.submission_set.filter(
-                    points=F("problem__points")
-                ).exists()
-            )
-        context["comment_list"] = queryset
-        context["vote_hide_threshold"] = settings.DMOJ_COMMENT_VOTE_HIDE_THRESHOLD
-        return context

judge/contest_format/__init__.py

@@ -4,4 +4,5 @@ from judge.contest_format.ecoo import ECOOContestFormat
 from judge.contest_format.icpc import ICPCContestFormat
 from judge.contest_format.ioi import IOIContestFormat
 from judge.contest_format.new_ioi import NewIOIContestFormat
+from judge.contest_format.ultimate import UltimateContestFormat
 from judge.contest_format.registry import choices, formats

judge/contest_format/base.py

@@ -109,6 +109,8 @@ class BaseContestFormat(metaclass=ABCMeta):
         )
         for result in queryset:
             problem = str(result["problem_id"])
+            if not (self.contest.freeze_after or hidden_subtasks.get(problem)):
+                continue
             if format_data.get(problem):
                 is_after_freeze = (
                     self.contest.freeze_after

judge/contest_format/ultimate.py

@@ -0,0 +1,55 @@
+from django.utils.translation import gettext_lazy
+
+from judge.contest_format.ioi import IOIContestFormat
+from judge.contest_format.registry import register_contest_format
+from django.db.models import Min, OuterRef, Subquery
+
+# This contest format only counts last submission for each problem.
+
+
+@register_contest_format("ultimate")
+class UltimateContestFormat(IOIContestFormat):
+    name = gettext_lazy("Ultimate")
+
+    def update_participation(self, participation):
+        cumtime = 0
+        score = 0
+        format_data = {}
+
+        queryset = participation.submissions
+        if self.contest.freeze_after:
+            queryset = queryset.filter(
+                submission__date__lt=participation.start + self.contest.freeze_after
+            )
+
+        queryset = (
+            queryset.values("problem_id")
+            .filter(
+                id=Subquery(
+                    queryset.filter(problem_id=OuterRef("problem_id"))
+                    .order_by("-id")
+                    .values("id")[:1]
+                )
+            )
+            .values_list("problem_id", "submission__date", "points")
+        )
+
+        for problem_id, time, points in queryset:
+            if self.config["cumtime"]:
+                dt = (time - participation.start).total_seconds()
+                if points:
+                    cumtime += dt
+            else:
+                dt = 0
+            format_data[str(problem_id)] = {
+                "time": dt,
+                "points": points,
+            }
+            score += points
+
+        self.handle_frozen_state(participation, format_data)
+        participation.cumtime = max(cumtime, 0)
+        participation.score = round(score, self.contest.points_precision)
+        participation.tiebreaker = 0
+        participation.format_data = format_data
+        participation.save()

judge/custom_translations.py

@@ -0,0 +1,22 @@
+from django.utils.translation import gettext_lazy as _, ngettext
+
+
+def custom_trans():
+    return [
+        # Password reset
+        ngettext(
+            "This password is too short. It must contain at least %(min_length)d character.",
+            "This password is too short. It must contain at least %(min_length)d characters.",
+            0,
+        ),
+        ngettext(
+            "Your password must contain at least %(min_length)d character.",
+            "Your password must contain at least %(min_length)d characters.",
+            0,
+        ),
+        _("The two password fields didn’t match."),
+        _("Your password can’t be entirely numeric."),
+        # Navbar
+        _("Bug Report"),
+        _("Courses"),
+    ]

judge/event_poster_amqp.py

@@ -16,7 +16,7 @@ class EventPoster(object):
 
     def _connect(self):
         self._conn = pika.BlockingConnection(
-            pika.URLParameters(settings.EVENT_DAEMON_AMQP)
+            pika.URLParameters(settings.EVENT_DAEMON_AMQP),
         )
         self._chan = self._conn.channel()
 
@@ -25,7 +25,7 @@ class EventPoster(object):
             id = int(time() * 1000000)
             self._chan.basic_publish(
                 self._exchange,
-                "",
+                "#",
                 json.dumps({"id": id, "channel": channel, "message": message}),
             )
             return id

judge/feed.py

@@ -1,120 +0,0 @@
-from django.conf import settings
-from django.contrib.auth.models import AnonymousUser
-from django.contrib.syndication.views import Feed
-from django.core.cache import cache
-from django.utils import timezone
-from django.utils.feedgenerator import Atom1Feed
-
-from judge.jinja2.markdown import markdown
-from judge.models import BlogPost, Comment, Problem
-
-import re
-
-
-# https://lsimons.wordpress.com/2011/03/17/stripping-illegal-characters-out-of-xml-in-python/
-def escape_xml_illegal_chars(val, replacement="?"):
-    _illegal_xml_chars_RE = re.compile(
-        "[\x00-\x08\x0b\x0c\x0e-\x1F\uD800-\uDFFF\uFFFE\uFFFF]"
-    )
-    return _illegal_xml_chars_RE.sub(replacement, val)
-
-
-class ProblemFeed(Feed):
-    title = "Recently Added %s Problems" % settings.SITE_NAME
-    link = "/"
-    description = (
-        "The latest problems added on the %s website" % settings.SITE_LONG_NAME
-    )
-
-    def items(self):
-        return (
-            Problem.objects.filter(is_public=True, is_organization_private=False)
-            .defer("description")
-            .order_by("-date", "-id")[:25]
-        )
-
-    def item_title(self, problem):
-        return problem.name
-
-    def item_description(self, problem):
-        key = "problem_feed:%d" % problem.id
-        desc = cache.get(key)
-        if desc is None:
-            desc = str(markdown(problem.description))[:500] + "..."
-            desc = escape_xml_illegal_chars(desc)
-            cache.set(key, desc, 86400)
-        return desc
-
-    def item_pubdate(self, problem):
-        return problem.date
-
-    item_updateddate = item_pubdate
-
-
-class AtomProblemFeed(ProblemFeed):
-    feed_type = Atom1Feed
-    subtitle = ProblemFeed.description
-
-
-class CommentFeed(Feed):
-    title = "Latest %s Comments" % settings.SITE_NAME
-    link = "/"
-    description = "The latest comments on the %s website" % settings.SITE_LONG_NAME
-
-    def items(self):
-        return Comment.most_recent(AnonymousUser(), 25)
-
-    def item_title(self, comment):
-        return "%s -> %s" % (comment.author.user.username, comment.page_title)
-
-    def item_description(self, comment):
-        key = "comment_feed:%d" % comment.id
-        desc = cache.get(key)
-        if desc is None:
-            desc = str(markdown(comment.body))
-            desc = escape_xml_illegal_chars(desc)
-            cache.set(key, desc, 86400)
-        return desc
-
-    def item_pubdate(self, comment):
-        return comment.time
-
-    item_updateddate = item_pubdate
-
-
-class AtomCommentFeed(CommentFeed):
-    feed_type = Atom1Feed
-    subtitle = CommentFeed.description
-
-
-class BlogFeed(Feed):
-    title = "Latest %s Blog Posts" % settings.SITE_NAME
-    link = "/"
-    description = "The latest blog posts from the %s" % settings.SITE_LONG_NAME
-
-    def items(self):
-        return BlogPost.objects.filter(
-            visible=True, publish_on__lte=timezone.now()
-        ).order_by("-sticky", "-publish_on")
-
-    def item_title(self, post):
-        return post.title
-
-    def item_description(self, post):
-        key = "blog_feed:%d" % post.id
-        summary = cache.get(key)
-        if summary is None:
-            summary = str(markdown(post.summary or post.content))
-            summary = escape_xml_illegal_chars(summary)
-            cache.set(key, summary, 86400)
-        return summary
-
-    def item_pubdate(self, post):
-        return post.publish_on
-
-    item_updateddate = item_pubdate
-
-
-class AtomBlogFeed(BlogFeed):
-    feed_type = Atom1Feed
-    subtitle = BlogFeed.description

judge/fixtures/demo.json

@@ -8,7 +8,6 @@
             "ip": "10.0.2.2",
             "language": 1,
             "last_access": "2017-12-02T08:57:10.093Z",
-            "math_engine": "auto",
             "mute": false,
             "organizations": [
                 1
@@ -18,8 +17,7 @@
             "problem_count": 0,
             "rating": null,
             "timezone": "America/Toronto",
-            "user": 1,
+            "user": 1
-            "user_script": ""
         },
         "model": "judge.profile",
         "pk": 1
@@ -147,25 +145,8 @@
     },
     {
         "fields": {
-            "author": 1,
+            "domain": "localhost:8000",
-            "body": "This is your first comment!",
+            "name": "LQDOJ"
-            "hidden": false,
-            "level": 0,
-            "lft": 1,
-            "page": "b:1",
-            "parent": null,
-            "rght": 2,
-            "score": 0,
-            "time": "2017-12-02T08:46:54.007Z",
-            "tree_id": 1
-        },
-        "model": "judge.comment",
-        "pk": 1
-    },
-    {
-        "fields": {
-            "domain": "localhost:8081",
-            "name": "DMOJ: Modern Online Judge"
         },
         "model": "sites.site",
         "pk": 1

judge/forms.py

@@ -1,13 +1,16 @@
+import os
+import secrets
 from operator import attrgetter
-
 import pyotp
+import time
+import datetime
+
 from django import forms
 from django.conf import settings
 from django.contrib.auth.models import User
 from django.contrib.auth.forms import AuthenticationForm
 from django.core.exceptions import ValidationError, ObjectDoesNotExist
 from django.core.validators import RegexValidator
-from django.db import transaction
 from django.db.models import Q
 from django.forms import (
     CharField,
@@ -16,8 +19,9 @@ from django.forms import (
     ModelForm,
     formset_factory,
     BaseModelFormSet,
+    FileField,
 )
-from django.urls import reverse_lazy
+from django.urls import reverse_lazy, reverse
 from django.utils.translation import gettext_lazy as _
 from django.utils import timezone
 
@@ -25,6 +29,7 @@ from django_ace import AceWidget
 from judge.models import (
     Contest,
     Language,
+    TestFormatterModel,
     Organization,
     PrivateMessage,
     Problem,
@@ -33,11 +38,12 @@ from judge.models import (
     Submission,
     BlogPost,
     ContestProblem,
+    TestFormatterModel,
+    ProfileInfo,
 )
 
 from judge.widgets import (
     HeavyPreviewPageDownWidget,
-    MathJaxPagedownWidget,
     PagedownWidget,
     Select2MultipleWidget,
     Select2Widget,
@@ -45,8 +51,9 @@ from judge.widgets import (
     HeavySelect2Widget,
     Select2MultipleWidget,
     DateTimePickerWidget,
+    ImageWidget,
+    DatePickerWidget,
 )
-from judge.tasks import rescore_contest
 
 
 def fix_unicode(string, unsafe=tuple("\u202a\u202b\u202d\u202e")):
@@ -64,55 +71,61 @@ class UserForm(ModelForm):
         ]
 
 
+class ProfileInfoForm(ModelForm):
+    class Meta:
+        model = ProfileInfo
+        fields = ["tshirt_size", "date_of_birth", "address"]
+        widgets = {
+            "tshirt_size": Select2Widget(attrs={"style": "width:100%"}),
+            "date_of_birth": DatePickerWidget,
+            "address": forms.TextInput(attrs={"style": "width:100%"}),
+        }
+
+
 class ProfileForm(ModelForm):
     class Meta:
         model = Profile
         fields = [
             "about",
-            "organizations",
             "timezone",
             "language",
             "ace_theme",
-            "user_script",
+            "profile_image",
+            "css_background",
         ]
         widgets = {
-            "user_script": AceWidget(theme="github"),
             "timezone": Select2Widget(attrs={"style": "width:200px"}),
             "language": Select2Widget(attrs={"style": "width:200px"}),
             "ace_theme": Select2Widget(attrs={"style": "width:200px"}),
+            "profile_image": ImageWidget,
+            "css_background": forms.TextInput(),
         }
 
-        has_math_config = bool(settings.MATHOID_URL)
-        if has_math_config:
-            fields.append("math_engine")
-            widgets["math_engine"] = Select2Widget(attrs={"style": "width:200px"})
-
         if HeavyPreviewPageDownWidget is not None:
             widgets["about"] = HeavyPreviewPageDownWidget(
                 preview=reverse_lazy("profile_preview"),
                 attrs={"style": "max-width:700px;min-width:700px;width:700px"},
             )
 
-    def clean(self):
-        organizations = self.cleaned_data.get("organizations") or []
-        max_orgs = settings.DMOJ_USER_MAX_ORGANIZATION_COUNT
-
-        if sum(org.is_open for org in organizations) > max_orgs:
-            raise ValidationError(
-                _("You may not be part of more than {count} public groups.").format(
-                    count=max_orgs
-                )
-            )
-
-        return self.cleaned_data
-
     def __init__(self, *args, **kwargs):
         user = kwargs.pop("user", None)
         super(ProfileForm, self).__init__(*args, **kwargs)
-        if not user.has_perm("judge.edit_all_organization"):
+        self.fields["profile_image"].required = False
-            self.fields["organizations"].queryset = Organization.objects.filter(
+
-                Q(is_open=True) | Q(id__in=user.profile.organizations.all()),
+    def clean_profile_image(self):
-            )
+        profile_image = self.cleaned_data.get("profile_image")
+        if profile_image:
+            if profile_image.size > 5 * 1024 * 1024:
+                raise ValidationError(
+                    _("File size exceeds the maximum allowed limit of 5MB.")
+                )
+        return profile_image
+
+
+def file_size_validator(file):
+    limit = 10 * 1024 * 1024
+    if file.size > limit:
+        raise ValidationError("File too large. Size should not exceed 10MB.")
 
 
 class ProblemSubmitForm(ModelForm):
@@ -120,9 +133,13 @@ class ProblemSubmitForm(ModelForm):
         max_length=65536, widget=AceWidget(theme="twilight", no_ace_media=True)
     )
     judge = ChoiceField(choices=(), widget=forms.HiddenInput(), required=False)
+    source_file = FileField(required=False, validators=[file_size_validator])
 
-    def __init__(self, *args, judge_choices=(), **kwargs):
+    def __init__(self, *args, judge_choices=(), request=None, problem=None, **kwargs):
         super(ProblemSubmitForm, self).__init__(*args, **kwargs)
+        self.source_file_name = None
+        self.request = request
+        self.problem = problem
         self.fields["language"].empty_label = None
         self.fields["language"].label_from_instance = attrgetter("display_name")
         self.fields["language"].queryset = Language.objects.filter(
@@ -135,6 +152,36 @@ class ProblemSubmitForm(ModelForm):
             )
             self.fields["judge"].choices = judge_choices
 
+    def allow_url_as_source(self):
+        key = self.cleaned_data["language"].key
+        filename = self.files["source_file"].name
+        if key == "OUTPUT" and self.problem.data_files.output_only:
+            return filename.endswith(".zip")
+        if key == "SCAT":
+            return filename.endswith(".sb3")
+        return False
+
+    def clean(self):
+        if "source_file" in self.files:
+            if self.allow_url_as_source():
+                filename = self.files["source_file"].name
+                now = datetime.datetime.now()
+                timestamp = str(int(time.mktime(now.timetuple())))
+                self.source_file_name = (
+                    timestamp + secrets.token_hex(5) + "." + filename.split(".")[-1]
+                )
+                filepath = os.path.join(
+                    settings.DMOJ_SUBMISSION_ROOT, self.source_file_name
+                )
+                with open(filepath, "wb+") as destination:
+                    for chunk in self.files["source_file"].chunks():
+                        destination.write(chunk)
+                self.cleaned_data["source"] = self.request.build_absolute_uri(
+                    reverse("submission_source_file", args=(self.source_file_name,))
+                )
+            del self.files["source_file"]
+        return self.cleaned_data
+
     class Meta:
         model = Submission
         fields = ["language"]
@@ -148,16 +195,32 @@ class EditOrganizationForm(ModelForm):
             "slug",
             "short_name",
             "about",
-            "logo_override_image",
+            "organization_image",
             "admins",
             "is_open",
         ]
-        widgets = {"admins": Select2MultipleWidget()}
+        widgets = {
+            "admins": Select2MultipleWidget(),
+            "organization_image": ImageWidget,
+        }
         if HeavyPreviewPageDownWidget is not None:
             widgets["about"] = HeavyPreviewPageDownWidget(
                 preview=reverse_lazy("organization_preview")
             )
 
+    def __init__(self, *args, **kwargs):
+        super(EditOrganizationForm, self).__init__(*args, **kwargs)
+        self.fields["organization_image"].required = False
+
+    def clean_organization_image(self):
+        organization_image = self.cleaned_data.get("organization_image")
+        if organization_image:
+            if organization_image.size > 5 * 1024 * 1024:
+                raise ValidationError(
+                    _("File size exceeds the maximum allowed limit of 5MB.")
+                )
+        return organization_image
+
 
 class AddOrganizationForm(ModelForm):
     class Meta:
@@ -167,7 +230,7 @@ class AddOrganizationForm(ModelForm):
             "slug",
             "short_name",
             "about",
-            "logo_override_image",
+            "organization_image",
             "is_open",
         ]
         widgets = {}
@@ -179,6 +242,7 @@ class AddOrganizationForm(ModelForm):
     def __init__(self, *args, **kwargs):
         self.request = kwargs.pop("request", None)
         super(AddOrganizationForm, self).__init__(*args, **kwargs)
+        self.fields["organization_image"].required = False
 
     def save(self, commit=True):
         res = super(AddOrganizationForm, self).save(commit=False)
@@ -240,16 +304,9 @@ class EditOrganizationContestForm(ModelForm):
             "view_contest_scoreboard",
         ]:
             self.fields[field].widget.data_url = (
-                self.fields[field].widget.get_url() + "?org_id=1"
+                self.fields[field].widget.get_url() + f"?org_id={self.org_id}"
             )
 
-    def save(self, commit=True):
-        res = super(EditOrganizationContestForm, self).save(commit=False)
-        if commit:
-            res.save()
-            transaction.on_commit(rescore_contest.s(res.key).delay)
-        return res
-
     class Meta:
         model = Contest
         fields = (
@@ -263,11 +320,13 @@ class EditOrganizationContestForm(ModelForm):
             "curators",
             "testers",
             "time_limit",
+            "freeze_after",
             "use_clarifications",
             "hide_problem_tags",
+            "public_scoreboard",
             "scoreboard_visibility",
-            "run_pretests_only",
             "points_precision",
+            "rate_limit",
             "description",
             "og_image",
             "logo_override_image",
@@ -310,7 +369,7 @@ class AddOrganizationMemberForm(ModelForm):
         label=_("New users"),
     )
 
-    def clean(self):
+    def clean_new_users(self):
         new_users = self.cleaned_data.get("new_users") or ""
         usernames = new_users.split()
         invalid_usernames = []
@@ -328,8 +387,7 @@ class AddOrganizationMemberForm(ModelForm):
                     usernames=str(invalid_usernames)
                 )
             )
-        self.cleaned_data["new_users"] = valid_usernames
+        return valid_usernames
-        return self.cleaned_data
 
     class Meta:
         model = Organization
@@ -377,13 +435,15 @@ class NewMessageForm(ModelForm):
         fields = ["title", "content"]
         widgets = {}
         if PagedownWidget is not None:
-            widgets["content"] = MathJaxPagedownWidget()
+            widgets["content"] = PagedownWidget()
 
 
 class CustomAuthenticationForm(AuthenticationForm):
     def __init__(self, *args, **kwargs):
         super(CustomAuthenticationForm, self).__init__(*args, **kwargs)
-        self.fields["username"].widget.attrs.update({"placeholder": _("Username")})
+        self.fields["username"].widget.attrs.update(
+            {"placeholder": _("Username/Email")}
+        )
         self.fields["password"].widget.attrs.update({"placeholder": _("Password")})
 
         self.has_google_auth = self._has_social_auth("GOOGLE_OAUTH2")
@@ -446,6 +506,15 @@ class ContestCloneForm(Form):
         max_length=20,
         validators=[RegexValidator("^[a-z0-9]+$", _("Contest id must be ^[a-z0-9]+$"))],
     )
+    organization = ChoiceField(choices=(), required=True)
+
+    def __init__(self, *args, org_choices=(), profile=None, **kwargs):
+        super(ContestCloneForm, self).__init__(*args, **kwargs)
+        self.fields["organization"].widget = Select2Widget(
+            attrs={"style": "width: 100%", "data-placeholder": _("Group")},
+        )
+        self.fields["organization"].choices = org_choices
+        self.profile = profile
 
     def clean_key(self):
         key = self.cleaned_data["key"]
@@ -453,6 +522,16 @@ class ContestCloneForm(Form):
             raise ValidationError(_("Contest with key already exists."))
         return key
 
+    def clean_organization(self):
+        organization_id = self.cleaned_data["organization"]
+        try:
+            organization = Organization.objects.get(id=organization_id)
+        except Exception:
+            raise ValidationError(_("Group doesn't exist."))
+        if not organization.admins.filter(id=self.profile.id).exists():
+            raise ValidationError(_("You don't have permission in this group."))
+        return organization
+
 
 class ProblemPointsVoteForm(ModelForm):
     class Meta:
@@ -468,19 +547,53 @@ class ContestProblemForm(ModelForm):
             "problem",
             "points",
             "partial",
-            "output_prefix_override",
+            "show_testcases",
             "max_submissions",
         )
         widgets = {
             "problem": HeavySelect2Widget(
-                data_view="problem_select2", attrs={"style": "width:100%"}
+                data_view="problem_select2", attrs={"style": "width: 100%"}
             ),
         }
 
 
+class ContestProblemModelFormSet(BaseModelFormSet):
+    def is_valid(self):
+        valid = super().is_valid()
+
+        if not valid:
+            return valid
+
+        problems = set()
+        duplicates = []
+
+        for form in self.forms:
+            if form.cleaned_data and not form.cleaned_data.get("DELETE", False):
+                problem = form.cleaned_data.get("problem")
+                if problem in problems:
+                    duplicates.append(problem)
+                else:
+                    problems.add(problem)
+
+        if duplicates:
+            for form in self.forms:
+                problem = form.cleaned_data.get("problem")
+                if problem in duplicates:
+                    form.add_error("problem", _("This problem is duplicated."))
+            return False
+
+        return True
+
+
 class ContestProblemFormSet(
     formset_factory(
-        ContestProblemForm, formset=BaseModelFormSet, extra=6, can_delete=True
+        ContestProblemForm, formset=ContestProblemModelFormSet, extra=6, can_delete=True
     )
 ):
     model = ContestProblem
+
+
+class TestFormatterForm(ModelForm):
+    class Meta:
+        model = TestFormatterModel
+        fields = ["file"]

judge/highlight_code.py

@@ -1,44 +1,13 @@
 from django.utils.html import escape, mark_safe
+from judge.markdown import markdown
 
 __all__ = ["highlight_code"]
 
 
-def _make_pre_code(code):
+def highlight_code(code, language, linenos=True, title=None):
-    return mark_safe("<pre>" + escape(code) + "</pre>")
+    linenos_option = 'linenums="1"' if linenos else ""
+    title_option = f'title="{title}"' if title else ""
+    options = f"{{.{language} {linenos_option} {title_option}}}"
 
-
+    value = f"```{options}\n{code}\n```\n"
-try:
+    return mark_safe(markdown(value))
-    import pygments
-    import pygments.lexers
-    import pygments.formatters
-    import pygments.util
-except ImportError:
-
-    def highlight_code(code, language, cssclass=None):
-        return _make_pre_code(code)
-
-else:
-
-    def highlight_code(code, language, cssclass="codehilite", linenos=True):
-        try:
-            lexer = pygments.lexers.get_lexer_by_name(language)
-        except pygments.util.ClassNotFound:
-            return _make_pre_code(code)
-
-        if linenos:
-            return mark_safe(
-                pygments.highlight(
-                    code,
-                    lexer,
-                    pygments.formatters.HtmlFormatter(
-                        cssclass=cssclass, linenos="table", wrapcode=True
-                    ),
-                )
-            )
-        return mark_safe(
-            pygments.highlight(
-                code,
-                lexer,
-                pygments.formatters.HtmlFormatter(cssclass=cssclass, wrapcode=True),
-            )
-        )

judge/jinja2/__init__.py

@@ -21,8 +21,8 @@ from . import (
     render,
     social,
     spaceless,
-    submission,
     timedelta,
+    comment,
 )
 from . import registry
 

judge/jinja2/comment.py

@@ -0,0 +1,12 @@
+from . import registry
+
+from django.contrib.contenttypes.models import ContentType
+
+from judge.models.comment import get_visible_comment_count
+from judge.caching import cache_wrapper
+
+
+@registry.function
+def comment_count(obj):
+    content_type = ContentType.objects.get_for_model(obj)
+    return get_visible_comment_count(content_type, obj.pk)

judge/jinja2/datetime.py

@@ -23,5 +23,5 @@ registry.filter(localtime_wrapper(time))
 
 @registry.function
 @registry.render_with("widgets/relative-time.html")
-def relative_time(time, format=_("N j, Y, g:i a"), rel=_("{time}"), abs=_("on {time}")):
+def relative_time(time, format=_("N j, Y, g:i a"), rel=_("{time}"), abs=_("{time}")):
     return {"time": time, "format": format, "rel_format": rel, "abs_format": abs}

judge/jinja2/gravatar.py

@@ -9,14 +9,16 @@ from . import registry
 
 
 @registry.function
-def gravatar(email, size=80, default=None):
+def gravatar(profile, size=80, default=None, profile_image=None, email=None):
-    if isinstance(email, Profile):
+    if profile and not profile.is_muted:
+        if profile_image:
+            return profile_image
+        if profile and profile.profile_image_url:
+            return profile.profile_image_url
+    if profile:
+        email = email or profile.email
         if default is None:
-            default = email.mute
+            default = profile.is_muted
-        email = email.user.email
-    elif isinstance(email, AbstractUser):
-        email = email.email
-
     gravatar_url = (
         "//www.gravatar.com/avatar/"
         + hashlib.md5(utf8bytes(email.strip().lower())).hexdigest()

judge/jinja2/markdown/__init__.py

@@ -1,112 +1,7 @@
 from .. import registry
-import markdown as _markdown
+from judge.markdown import markdown as _markdown
-import bleach
-from django.utils.html import escape
-from bs4 import BeautifulSoup
-from pymdownx import superfences
-
-
-EXTENSIONS = [
-    "pymdownx.arithmatex",
-    "pymdownx.magiclink",
-    "pymdownx.betterem",
-    "pymdownx.details",
-    "pymdownx.emoji",
-    "pymdownx.inlinehilite",
-    "pymdownx.superfences",
-    "pymdownx.tasklist",
-    "markdown.extensions.footnotes",
-    "markdown.extensions.attr_list",
-    "markdown.extensions.def_list",
-    "markdown.extensions.tables",
-    "markdown.extensions.admonition",
-    "nl2br",
-    "mdx_breakless_lists",
-]
-
-EXTENSION_CONFIGS = {
-    "pymdownx.superfences": {
-        "custom_fences": [
-            {
-                "name": "sample",
-                "class": "no-border",
-                "format": superfences.fence_code_format,
-            }
-        ]
-    },
-}
-
-ALLOWED_TAGS = bleach.sanitizer.ALLOWED_TAGS + [
-    "img",
-    "center",
-    "iframe",
-    "div",
-    "span",
-    "table",
-    "tr",
-    "td",
-    "th",
-    "tr",
-    "pre",
-    "code",
-    "p",
-    "hr",
-    "h1",
-    "h2",
-    "h3",
-    "h4",
-    "h5",
-    "h6",
-    "thead",
-    "tbody",
-    "sup",
-    "dl",
-    "dt",
-    "dd",
-    "br",
-    "details",
-    "summary",
-]
-
-ALLOWED_ATTRS = ["src", "width", "height", "href", "class", "open"]
 
 
 @registry.filter
 def markdown(value, lazy_load=False):
-    extensions = EXTENSIONS
+    return _markdown(value, lazy_load)
-    html = _markdown.markdown(
-        value, extensions=extensions, extension_configs=EXTENSION_CONFIGS
-    )
-
-    # Don't clean mathjax
-    hash_script_tag = {}
-    soup = BeautifulSoup(html, "html.parser")
-    for script_tag in soup.find_all("script"):
-        allow_math_types = ["math/tex", "math/tex; mode=display"]
-        if script_tag.attrs.get("type", False) in allow_math_types:
-            hash_script_tag[str(hash(str(script_tag)))] = str(script_tag)
-
-    for hashed_tag in hash_script_tag:
-        tag = hash_script_tag[hashed_tag]
-        html = html.replace(tag, hashed_tag)
-
-    html = bleach.clean(html, tags=ALLOWED_TAGS, attributes=ALLOWED_ATTRS)
-
-    for hashed_tag in hash_script_tag:
-        tag = hash_script_tag[hashed_tag]
-        html = html.replace(hashed_tag, tag)
-
-    if not html:
-        html = escape(value)
-    if lazy_load or True:
-        soup = BeautifulSoup(html, features="html.parser")
-        for img in soup.findAll("img"):
-            if img.get("src"):
-                img["data-src"] = img["src"]
-                img["src"] = ""
-        for img in soup.findAll("iframe"):
-            if img.get("src"):
-                img["data-src"] = img["src"]
-                img["src"] = ""
-        html = str(soup)
-    return '<div class="md-typeset">%s</div>' % html

judge/jinja2/reference.py

@@ -155,16 +155,16 @@ def item_title(item):
 
 @registry.function
 @registry.render_with("user/link.html")
-def link_user(user):
+def link_user(user, show_image=False):
     if isinstance(user, Profile):
-        user, profile = user.user, user
+        profile = user
     elif isinstance(user, AbstractUser):
         profile = user.profile
-    elif type(user).__name__ == "ContestRankingProfile":
+    elif isinstance(user, int):
-        user, profile = user.user, user
+        profile = Profile(id=user)
     else:
         raise ValueError("Expected profile or user, got %s" % (type(user),))
-    return {"user": user, "profile": profile}
+    return {"profile": profile, "show_image": show_image}
 
 
 @registry.function

judge/jinja2/social.py

@@ -48,5 +48,9 @@ for name, template, url_func in SHARES:
 @registry.function
 def recaptcha_init(language=None):
     return get_template("snowpenguin/recaptcha/recaptcha_init.html").render(
-        {"explicit": False, "language": language}
+        {
+            "explicit": False,
+            "language": language,
+            "recaptcha_host": "https://google.com",
+        }
     )

judge/jinja2/submission.py

@@ -1,36 +0,0 @@
-from . import registry
-
-
-@registry.function
-def submission_layout(
-    submission, profile_id, user, editable_problem_ids, completed_problem_ids
-):
-    problem_id = submission.problem_id
-    can_view = False
-
-    if problem_id in editable_problem_ids:
-        can_view = True
-
-    if profile_id == submission.user_id:
-        can_view = True
-
-    if user.has_perm("judge.change_submission"):
-        can_view = True
-
-    if user.has_perm("judge.view_all_submission"):
-        can_view = True
-
-    if submission.problem.is_public and user.has_perm("judge.view_public_submission"):
-        can_view = True
-
-    if submission.problem_id in completed_problem_ids:
-        can_view |= (
-            submission.problem.is_public or profile_id in submission.problem.tester_ids
-        )
-
-    if not can_view and hasattr(submission, "contest"):
-        contest = submission.contest.participation.contest
-        if contest.is_editable_by(user):
-            can_view = True
-
-    return can_view

judge/logging.py

@@ -0,0 +1,12 @@
+import logging
+
+error_log = logging.getLogger("judge.errors")
+debug_log = logging.getLogger("judge.debug")
+
+
+def log_exception(msg):
+    error_log.exception(msg)
+
+
+def log_debug(category, data):
+    debug_log.info(f"{category}: {data}")

judge/management/commands/generate_data.py

@@ -1,6 +1,5 @@
 from django.core.management.base import BaseCommand
 from judge.models import *
-from collections import defaultdict
 import csv
 import os
 from django.conf import settings

judge/management/commands/render_pdf.py

@@ -89,14 +89,13 @@ class Command(BaseCommand):
                         if trans is None
                         else trans.description,
                         "url": "",
-                        "math_engine": maker.math_engine,
                     }
                 )
                 .replace('"//', '"https://')
                 .replace("'//", "'https://")
             )
             maker.title = problem_name
-            for file in ("style.css", "pygment-github.css", "mathjax3_config.js"):
+            for file in "style.css":
                 maker.load(file, os.path.join(settings.DMOJ_RESOURCES, file))
             maker.make(debug=True)
             if not maker.success:

judge/markdown.py

@@ -0,0 +1,149 @@
+import markdown as _markdown
+import bleach
+from django.utils.html import escape
+from bs4 import BeautifulSoup
+from pymdownx import superfences
+from django.conf import settings
+from urllib.parse import urlparse
+
+from judge.markdown_extensions import YouTubeExtension, EmoticonExtension
+
+
+EXTENSIONS = [
+    "pymdownx.arithmatex",
+    "pymdownx.magiclink",
+    "pymdownx.betterem",
+    "pymdownx.details",
+    "pymdownx.emoji",
+    "pymdownx.inlinehilite",
+    "pymdownx.superfences",
+    "pymdownx.highlight",
+    "pymdownx.tasklist",
+    "markdown.extensions.footnotes",
+    "markdown.extensions.attr_list",
+    "markdown.extensions.def_list",
+    "markdown.extensions.tables",
+    "markdown.extensions.admonition",
+    "nl2br",
+    "mdx_breakless_lists",
+    YouTubeExtension(),
+    EmoticonExtension(),
+]
+
+EXTENSION_CONFIGS = {
+    "pymdownx.arithmatex": {
+        "generic": True,
+    },
+    "pymdownx.superfences": {
+        "custom_fences": [
+            {
+                "name": "sample",
+                "class": "no-border",
+                "format": superfences.fence_code_format,
+            }
+        ],
+    },
+    "pymdownx.highlight": {
+        "auto_title": True,
+        "auto_title_map": {
+            "Text Only": "",
+        },
+    },
+}
+
+ALLOWED_TAGS = list(bleach.sanitizer.ALLOWED_TAGS) + [
+    "img",
+    "center",
+    "iframe",
+    "div",
+    "span",
+    "table",
+    "tr",
+    "td",
+    "th",
+    "tr",
+    "pre",
+    "code",
+    "p",
+    "hr",
+    "h1",
+    "h2",
+    "h3",
+    "h4",
+    "h5",
+    "h6",
+    "thead",
+    "tbody",
+    "sup",
+    "dl",
+    "dt",
+    "dd",
+    "br",
+    "details",
+    "summary",
+]
+
+ALLOWED_ATTRS = [
+    "src",
+    "width",
+    "height",
+    "href",
+    "class",
+    "open",
+    "title",
+    "frameborder",
+    "allow",
+    "allowfullscreen",
+    "loading",
+]
+
+
+def _wrap_img_iframe_with_lazy_load(soup):
+    for img in soup.findAll("img"):
+        if img.get("src"):
+            img["loading"] = "lazy"
+    for img in soup.findAll("iframe"):
+        if img.get("src"):
+            img["loading"] = "lazy"
+    return soup
+
+
+def _wrap_images_with_featherlight(soup):
+    for img in soup.findAll("img"):
+        if img.get("src"):
+            link = soup.new_tag("a", href=img["src"], **{"data-featherlight": "image"})
+            img.wrap(link)
+    return soup
+
+
+def _open_external_links_in_new_tab(soup):
+    domain = settings.SITE_DOMAIN.lower()
+    for a in soup.findAll("a", href=True):
+        href = a["href"]
+        if href.startswith("http://") or href.startswith("https://"):
+            link_domain = urlparse(href).netloc.lower()
+            if link_domain != domain:
+                a["target"] = "_blank"
+    return soup
+
+
+def markdown(value, lazy_load=False):
+    extensions = EXTENSIONS
+    html = _markdown.markdown(
+        value, extensions=extensions, extension_configs=EXTENSION_CONFIGS
+    )
+
+    html = bleach.clean(html, tags=ALLOWED_TAGS, attributes=ALLOWED_ATTRS)
+
+    if not html:
+        html = escape(value)
+
+    soup = BeautifulSoup(html, features="html.parser")
+    if lazy_load:
+        soup = _wrap_img_iframe_with_lazy_load(soup)
+
+    soup = _wrap_images_with_featherlight(soup)
+    soup = _open_external_links_in_new_tab(soup)
+    html = str(soup)
+
+    return '<div class="md-typeset content-description">%s</div>' % html

judge/markdown_extensions/__init__.py

@@ -0,0 +1,2 @@
+from .youtube import YouTubeExtension
+from .emoticon import EmoticonExtension

judge/markdown_extensions/emoticon.py

@@ -0,0 +1,112 @@
+import markdown
+from markdown.extensions import Extension
+from markdown.inlinepatterns import InlineProcessor
+import xml.etree.ElementTree as etree
+import re
+
+EMOTICON_EMOJI_MAP = {
+    ":D": "\U0001F603",  # Smiling Face with Open Mouth
+    ":)": "\U0001F642",  # Slightly Smiling Face
+    ":-)": "\U0001F642",  # Slightly Smiling Face with Nose
+    ":(": "\U0001F641",  # Slightly Frowning Face
+    ":-(": "\U0001F641",  # Slightly Frowning Face with Nose
+    ";)": "\U0001F609",  # Winking Face
+    ";-)": "\U0001F609",  # Winking Face with Nose
+    ":P": "\U0001F61B",  # Face with Tongue
+    ":-P": "\U0001F61B",  # Face with Tongue and Nose
+    ":p": "\U0001F61B",  # Face with Tongue
+    ":-p": "\U0001F61B",  # Face with Tongue and Nose
+    ";P": "\U0001F61C",  # Winking Face with Tongue
+    ";-P": "\U0001F61C",  # Winking Face with Tongue and Nose
+    ";p": "\U0001F61C",  # Winking Face with Tongue
+    ";-p": "\U0001F61C",  # Winking Face with Tongue and Nose
+    ":'(": "\U0001F622",  # Crying Face
+    ":o": "\U0001F62E",  # Face with Open Mouth
+    ":-o": "\U0001F62E",  # Face with Open Mouth and Nose
+    ":O": "\U0001F62E",  # Face with Open Mouth
+    ":-O": "\U0001F62E",  # Face with Open Mouth and Nose
+    ":-0": "\U0001F62E",  # Face with Open Mouth and Nose
+    ">:(": "\U0001F620",  # Angry Face
+    ">:-(": "\U0001F620",  # Angry Face with Nose
+    ">:)": "\U0001F608",  # Smiling Face with Horns
+    ">:-)": "\U0001F608",  # Smiling Face with Horns and Nose
+    "XD": "\U0001F606",  # Grinning Squinting Face
+    "xD": "\U0001F606",  # Grinning Squinting Face
+    "B)": "\U0001F60E",  # Smiling Face with Sunglasses
+    "B-)": "\U0001F60E",  # Smiling Face with Sunglasses and Nose
+    "O:)": "\U0001F607",  # Smiling Face with Halo
+    "O:-)": "\U0001F607",  # Smiling Face with Halo and Nose
+    "0:)": "\U0001F607",  # Smiling Face with Halo
+    "0:-)": "\U0001F607",  # Smiling Face with Halo and Nose
+    ">:P": "\U0001F92A",  # Zany Face (sticking out tongue and winking)
+    ">:-P": "\U0001F92A",  # Zany Face with Nose
+    ">:p": "\U0001F92A",  # Zany Face (sticking out tongue and winking)
+    ">:-p": "\U0001F92A",  # Zany Face with Nose
+    ":/": "\U0001F615",  # Confused Face
+    ":-/": "\U0001F615",  # Confused Face with Nose
+    ":\\": "\U0001F615",  # Confused Face
+    ":-\\": "\U0001F615",  # Confused Face with Nose
+    "3:)": "\U0001F608",  # Smiling Face with Horns
+    "3:-)": "\U0001F608",  # Smiling Face with Horns and Nose
+    "<3": "\u2764\uFE0F",  # Red Heart
+    "</3": "\U0001F494",  # Broken Heart
+    ":*": "\U0001F618",  # Face Blowing a Kiss
+    ":-*": "\U0001F618",  # Face Blowing a Kiss with Nose
+    ";P": "\U0001F61C",  # Winking Face with Tongue
+    ";-P": "\U0001F61C",
+    ">:P": "\U0001F61D",  # Face with Stuck-Out Tongue and Tightly-Closed Eyes
+    ":-/": "\U0001F615",  # Confused Face
+    ":/": "\U0001F615",
+    ":\\": "\U0001F615",
+    ":-\\": "\U0001F615",
+    ":|": "\U0001F610",  # Neutral Face
+    ":-|": "\U0001F610",
+    "8)": "\U0001F60E",  # Smiling Face with Sunglasses
+    "8-)": "\U0001F60E",
+    "O:)": "\U0001F607",  # Smiling Face with Halo
+    "O:-)": "\U0001F607",
+    ":3": "\U0001F60A",  # Smiling Face with Smiling Eyes
+    "^.^": "\U0001F60A",
+    "-_-": "\U0001F611",  # Expressionless Face
+    "T_T": "\U0001F62D",  # Loudly Crying Face
+    "T.T": "\U0001F62D",
+    ">.<": "\U0001F623",  # Persevering Face
+    "x_x": "\U0001F635",  # Dizzy Face
+    "X_X": "\U0001F635",
+    ":]": "\U0001F600",  # Grinning Face
+    ":[": "\U0001F641",  # Slightly Frowning Face
+    "=]": "\U0001F600",
+    "=[": "\U0001F641",
+    "D:<": "\U0001F621",  # Pouting Face
+    "D:": "\U0001F629",  # Weary Face
+    "D=": "\U0001F6AB",  # No Entry Sign (sometimes used to denote dismay or frustration)
+    ":'D": "\U0001F602",  # Face with Tears of Joy
+    "D':": "\U0001F625",  # Disappointed but Relieved Face
+    "D8": "\U0001F631",  # Face Screaming in Fear
+    "-.-": "\U0001F644",  # Face with Rolling Eyes
+    "-_-;": "\U0001F612",  # Unamused
+}
+
+
+class EmoticonEmojiInlineProcessor(InlineProcessor):
+    def handleMatch(self, m, data):
+        emoticon = m.group(1)
+        emoji = EMOTICON_EMOJI_MAP.get(emoticon, "")
+        if emoji:
+            el = etree.Element("span")
+            el.text = markdown.util.AtomicString(emoji)
+            el.set("class", "big-emoji")
+            return el, m.start(0), m.end(0)
+        else:
+            return None, m.start(0), m.end(0)
+
+
+class EmoticonExtension(Extension):
+    def extendMarkdown(self, md):
+        emoticon_pattern = (
+            r"(?:(?<=\s)|^)"  # Lookbehind for a whitespace character or the start of the string
+            r"(" + "|".join(map(re.escape, EMOTICON_EMOJI_MAP.keys())) + r")"
+            r"(?=\s|$)"  # Lookahead for a whitespace character or the end of the string
+        )
+        emoticon_processor = EmoticonEmojiInlineProcessor(emoticon_pattern, md)
+        md.inlinePatterns.register(emoticon_processor, "emoticon_to_emoji", 1)

judge/markdown_extensions/youtube.py

@@ -0,0 +1,36 @@
+import markdown
+from markdown.inlinepatterns import InlineProcessor
+from markdown.extensions import Extension
+import xml.etree.ElementTree as etree
+
+YOUTUBE_REGEX = (
+    r"(https?://)?(www\.)?" "(youtube\.com/watch\?v=|youtu\.be/)" "([\w-]+)(&[\w=]*)?"
+)
+
+
+class YouTubeEmbedProcessor(InlineProcessor):
+    def handleMatch(self, m, data):
+        youtube_id = m.group(4)
+        if not youtube_id:
+            return None, None, None
+
+        # Create an iframe element with the YouTube embed URL
+        iframe = etree.Element("iframe")
+        iframe.set("width", "100%")
+        iframe.set("height", "360")
+        iframe.set("src", f"https://www.youtube.com/embed/{youtube_id}")
+        iframe.set("frameborder", "0")
+        iframe.set("allowfullscreen", "true")
+        center = etree.Element("center")
+        center.append(iframe)
+
+        # Return the iframe as the element to replace the match, along with the start and end indices
+        return center, m.start(0), m.end(0)
+
+
+class YouTubeExtension(Extension):
+    def extendMarkdown(self, md):
+        # Create the YouTube link pattern
+        YOUTUBE_PATTERN = YouTubeEmbedProcessor(YOUTUBE_REGEX, md)
+        # Register the pattern to apply the YouTubeEmbedProcessor
+        md.inlinePatterns.register(YOUTUBE_PATTERN, "youtube", 175)

judge/middleware.py

@@ -1,7 +1,23 @@
+import time
+import logging
+import random
+import json
+from datetime import datetime
+
 from django.conf import settings
-from django.http import HttpResponseRedirect
+from django.http import HttpResponseRedirect, Http404
 from django.urls import Resolver404, resolve, reverse
 from django.utils.http import urlquote
+from django.contrib.sites.shortcuts import get_current_site
+from django.core.exceptions import ObjectDoesNotExist
+from django.utils.translation import gettext as _
+
+from judge.models import Organization
+from judge.utils.views import generic_message
+
+
+USED_DOMAINS = ["www"]
+URL_NAMES_BYPASS_SUBDOMAIN = ["submission_source_file"]
 
 
 class ShortCircuitMiddleware:
@@ -82,3 +98,83 @@ class DarkModeMiddleware(object):
                 reverse("toggle_darkmode") + "?next=" + urlquote(request.path)
             )
         return self.get_response(request)
+
+
+class SubdomainMiddleware(object):
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        request.organization = None
+        if not settings.USE_SUBDOMAIN:
+            return self.get_response(request)
+
+        domain = request.get_host()
+        site = get_current_site(request).domain
+        subdomain = domain[: len(domain) - len(site)].lower()
+
+        if len(subdomain) <= 1:
+            return self.get_response(request)
+
+        subdomain = subdomain[:-1]
+
+        if (
+            subdomain in USED_DOMAINS
+            or resolve(request.path).url_name in URL_NAMES_BYPASS_SUBDOMAIN
+        ):
+            return self.get_response(request)
+
+        try:
+            organization = Organization.objects.get(slug=subdomain)
+            if request.profile and organization in request.profile.organizations.all():
+                request.organization = organization
+            else:
+                if request.profile:
+                    return generic_message(
+                        request,
+                        _("No permission"),
+                        _("You need to join this group first"),
+                        status=404,
+                    )
+                if not request.GET.get("next", None):
+                    return HttpResponseRedirect(
+                        reverse("auth_login") + "?next=" + urlquote(request.path)
+                    )
+        except ObjectDoesNotExist:
+            return generic_message(
+                request,
+                _("No such group"),
+                _("No such group"),
+                status=404,
+            )
+        return self.get_response(request)
+
+
+class SlowRequestMiddleware(object):
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        logger = logging.getLogger("judge.request_time")
+        logger_slow = logging.getLogger("judge.slow_request")
+        start_time = time.time()
+        response = self.get_response(request)
+        if response.status_code == 200:
+            try:
+                response_time = time.time() - start_time
+                url_name = resolve(request.path).url_name
+                message = {
+                    "url_name": url_name,
+                    "response_time": response_time * 1000,
+                    "profile": request.user.username,
+                    "date": datetime.now().strftime("%Y/%m/%d"),
+                    "url": request.build_absolute_uri(),
+                    "method": request.method,
+                }
+                if response_time > 9:
+                    logger_slow.info(json.dumps(message))
+                if random.random() < 0.1:
+                    logger.info(json.dumps(message))
+            except Exception:
+                pass
+        return response

judge/migrations/0091_compiler_message_ansi2html.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import lxml.html as lh
 from django.db import migrations
-from lxml.html.clean import clean_html
+from lxml_html_clean import clean_html
 
 
 def strip_error_html(apps, schema_editor):

judge/migrations/0145_alter_organization_slug.py

@@ -0,0 +1,36 @@
+# Generated by Django 3.2.16 on 2023-01-23 23:39
+
+from django.db import migrations, models
+
+
+def make_slug_unique(apps, schema_editor):
+    Organization = apps.get_model("judge", "Organization")
+    slugs = Organization.objects.values_list("slug", flat=True)
+    slugs = set([i.lower() for i in slugs])
+    for slug in slugs:
+        orgs = Organization.objects.filter(slug=slug)
+        if len(orgs) > 1:
+            for org in orgs:
+                org.slug += "-" + str(org.id)
+                org.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0144_auto_20230103_0523"),
+    ]
+
+    operations = [
+        migrations.RunPython(make_slug_unique, migrations.RunPython.noop, atomic=True),
+        migrations.AlterField(
+            model_name="organization",
+            name="slug",
+            field=models.SlugField(
+                help_text="Organization name shown in URL",
+                max_length=128,
+                unique=True,
+                verbose_name="organization slug",
+            ),
+        ),
+    ]

judge/migrations/0146_alter_organization_slug.py

@@ -0,0 +1,29 @@
+# Generated by Django 3.2.16 on 2023-01-25 19:12
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0145_alter_organization_slug"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="organization",
+            name="slug",
+            field=models.SlugField(
+                help_text="Organization name shown in URL",
+                max_length=128,
+                unique=True,
+                validators=[
+                    django.core.validators.RegexValidator(
+                        "^[-a-zA-Z0-9]+$", "Only alphanumeric and hyphens"
+                    )
+                ],
+                verbose_name="organization slug",
+            ),
+        ),
+    ]

judge/migrations/0147_alter_profile_timezone.py

@@ -0,0 +1,678 @@
+# Generated by Django 3.2.16 on 2023-01-30 11:01
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0146_alter_organization_slug"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="profile",
+            name="timezone",
+            field=models.CharField(
+                choices=[
+                    (
+                        "Africa",
+                        [
+                            ("Africa/Abidjan", "Abidjan"),
+                            ("Africa/Accra", "Accra"),
+                            ("Africa/Addis_Ababa", "Addis_Ababa"),
+                            ("Africa/Algiers", "Algiers"),
+                            ("Africa/Asmara", "Asmara"),
+                            ("Africa/Asmera", "Asmera"),
+                            ("Africa/Bamako", "Bamako"),
+                            ("Africa/Bangui", "Bangui"),
+                            ("Africa/Banjul", "Banjul"),
+                            ("Africa/Bissau", "Bissau"),
+                            ("Africa/Blantyre", "Blantyre"),
+                            ("Africa/Brazzaville", "Brazzaville"),
+                            ("Africa/Bujumbura", "Bujumbura"),
+                            ("Africa/Cairo", "Cairo"),
+                            ("Africa/Casablanca", "Casablanca"),
+                            ("Africa/Ceuta", "Ceuta"),
+                            ("Africa/Conakry", "Conakry"),
+                            ("Africa/Dakar", "Dakar"),
+                            ("Africa/Dar_es_Salaam", "Dar_es_Salaam"),
+                            ("Africa/Djibouti", "Djibouti"),
+                            ("Africa/Douala", "Douala"),
+                            ("Africa/El_Aaiun", "El_Aaiun"),
+                            ("Africa/Freetown", "Freetown"),
+                            ("Africa/Gaborone", "Gaborone"),
+                            ("Africa/Harare", "Harare"),
+                            ("Africa/Johannesburg", "Johannesburg"),
+                            ("Africa/Juba", "Juba"),
+                            ("Africa/Kampala", "Kampala"),
+                            ("Africa/Khartoum", "Khartoum"),
+                            ("Africa/Kigali", "Kigali"),
+                            ("Africa/Kinshasa", "Kinshasa"),
+                            ("Africa/Lagos", "Lagos"),
+                            ("Africa/Libreville", "Libreville"),
+                            ("Africa/Lome", "Lome"),
+                            ("Africa/Luanda", "Luanda"),
+                            ("Africa/Lubumbashi", "Lubumbashi"),
+                            ("Africa/Lusaka", "Lusaka"),
+                            ("Africa/Malabo", "Malabo"),
+                            ("Africa/Maputo", "Maputo"),
+                            ("Africa/Maseru", "Maseru"),
+                            ("Africa/Mbabane", "Mbabane"),
+                            ("Africa/Mogadishu", "Mogadishu"),
+                            ("Africa/Monrovia", "Monrovia"),
+                            ("Africa/Nairobi", "Nairobi"),
+                            ("Africa/Ndjamena", "Ndjamena"),
+                            ("Africa/Niamey", "Niamey"),
+                            ("Africa/Nouakchott", "Nouakchott"),
+                            ("Africa/Ouagadougou", "Ouagadougou"),
+                            ("Africa/Porto-Novo", "Porto-Novo"),
+                            ("Africa/Sao_Tome", "Sao_Tome"),
+                            ("Africa/Timbuktu", "Timbuktu"),
+                            ("Africa/Tripoli", "Tripoli"),
+                            ("Africa/Tunis", "Tunis"),
+                            ("Africa/Windhoek", "Windhoek"),
+                        ],
+                    ),
+                    (
+                        "America",
+                        [
+                            ("America/Adak", "Adak"),
+                            ("America/Anchorage", "Anchorage"),
+                            ("America/Anguilla", "Anguilla"),
+                            ("America/Antigua", "Antigua"),
+                            ("America/Araguaina", "Araguaina"),
+                            (
+                                "America/Argentina/Buenos_Aires",
+                                "Argentina/Buenos_Aires",
+                            ),
+                            ("America/Argentina/Catamarca", "Argentina/Catamarca"),
+                            (
+                                "America/Argentina/ComodRivadavia",
+                                "Argentina/ComodRivadavia",
+                            ),
+                            ("America/Argentina/Cordoba", "Argentina/Cordoba"),
+                            ("America/Argentina/Jujuy", "Argentina/Jujuy"),
+                            ("America/Argentina/La_Rioja", "Argentina/La_Rioja"),
+                            ("America/Argentina/Mendoza", "Argentina/Mendoza"),
+                            (
+                                "America/Argentina/Rio_Gallegos",
+                                "Argentina/Rio_Gallegos",
+                            ),
+                            ("America/Argentina/Salta", "Argentina/Salta"),
+                            ("America/Argentina/San_Juan", "Argentina/San_Juan"),
+                            ("America/Argentina/San_Luis", "Argentina/San_Luis"),
+                            ("America/Argentina/Tucuman", "Argentina/Tucuman"),
+                            ("America/Argentina/Ushuaia", "Argentina/Ushuaia"),
+                            ("America/Aruba", "Aruba"),
+                            ("America/Asuncion", "Asuncion"),
+                            ("America/Atikokan", "Atikokan"),
+                            ("America/Atka", "Atka"),
+                            ("America/Bahia", "Bahia"),
+                            ("America/Bahia_Banderas", "Bahia_Banderas"),
+                            ("America/Barbados", "Barbados"),
+                            ("America/Belem", "Belem"),
+                            ("America/Belize", "Belize"),
+                            ("America/Blanc-Sablon", "Blanc-Sablon"),
+                            ("America/Boa_Vista", "Boa_Vista"),
+                            ("America/Bogota", "Bogota"),
+                            ("America/Boise", "Boise"),
+                            ("America/Buenos_Aires", "Buenos_Aires"),
+                            ("America/Cambridge_Bay", "Cambridge_Bay"),
+                            ("America/Campo_Grande", "Campo_Grande"),
+                            ("America/Cancun", "Cancun"),
+                            ("America/Caracas", "Caracas"),
+                            ("America/Catamarca", "Catamarca"),
+                            ("America/Cayenne", "Cayenne"),
+                            ("America/Cayman", "Cayman"),
+                            ("America/Chicago", "Chicago"),
+                            ("America/Chihuahua", "Chihuahua"),
+                            ("America/Ciudad_Juarez", "Ciudad_Juarez"),
+                            ("America/Coral_Harbour", "Coral_Harbour"),
+                            ("America/Cordoba", "Cordoba"),
+                            ("America/Costa_Rica", "Costa_Rica"),
+                            ("America/Creston", "Creston"),
+                            ("America/Cuiaba", "Cuiaba"),
+                            ("America/Curacao", "Curacao"),
+                            ("America/Danmarkshavn", "Danmarkshavn"),
+                            ("America/Dawson", "Dawson"),
+                            ("America/Dawson_Creek", "Dawson_Creek"),
+                            ("America/Denver", "Denver"),
+                            ("America/Detroit", "Detroit"),
+                            ("America/Dominica", "Dominica"),
+                            ("America/Edmonton", "Edmonton"),
+                            ("America/Eirunepe", "Eirunepe"),
+                            ("America/El_Salvador", "El_Salvador"),
+                            ("America/Ensenada", "Ensenada"),
+                            ("America/Fort_Nelson", "Fort_Nelson"),
+                            ("America/Fort_Wayne", "Fort_Wayne"),
+                            ("America/Fortaleza", "Fortaleza"),
+                            ("America/Glace_Bay", "Glace_Bay"),
+                            ("America/Godthab", "Godthab"),
+                            ("America/Goose_Bay", "Goose_Bay"),
+                            ("America/Grand_Turk", "Grand_Turk"),
+                            ("America/Grenada", "Grenada"),
+                            ("America/Guadeloupe", "Guadeloupe"),
+                            ("America/Guatemala", "Guatemala"),
+                            ("America/Guayaquil", "Guayaquil"),
+                            ("America/Guyana", "Guyana"),
+                            ("America/Halifax", "Halifax"),
+                            ("America/Havana", "Havana"),
+                            ("America/Hermosillo", "Hermosillo"),
+                            ("America/Indiana/Indianapolis", "Indiana/Indianapolis"),
+                            ("America/Indiana/Knox", "Indiana/Knox"),
+                            ("America/Indiana/Marengo", "Indiana/Marengo"),
+                            ("America/Indiana/Petersburg", "Indiana/Petersburg"),
+                            ("America/Indiana/Tell_City", "Indiana/Tell_City"),
+                            ("America/Indiana/Vevay", "Indiana/Vevay"),
+                            ("America/Indiana/Vincennes", "Indiana/Vincennes"),
+                            ("America/Indiana/Winamac", "Indiana/Winamac"),
+                            ("America/Indianapolis", "Indianapolis"),
+                            ("America/Inuvik", "Inuvik"),
+                            ("America/Iqaluit", "Iqaluit"),
+                            ("America/Jamaica", "Jamaica"),
+                            ("America/Jujuy", "Jujuy"),
+                            ("America/Juneau", "Juneau"),
+                            ("America/Kentucky/Louisville", "Kentucky/Louisville"),
+                            ("America/Kentucky/Monticello", "Kentucky/Monticello"),
+                            ("America/Knox_IN", "Knox_IN"),
+                            ("America/Kralendijk", "Kralendijk"),
+                            ("America/La_Paz", "La_Paz"),
+                            ("America/Lima", "Lima"),
+                            ("America/Los_Angeles", "Los_Angeles"),
+                            ("America/Louisville", "Louisville"),
+                            ("America/Lower_Princes", "Lower_Princes"),
+                            ("America/Maceio", "Maceio"),
+                            ("America/Managua", "Managua"),
+                            ("America/Manaus", "Manaus"),
+                            ("America/Marigot", "Marigot"),
+                            ("America/Martinique", "Martinique"),
+                            ("America/Matamoros", "Matamoros"),
+                            ("America/Mazatlan", "Mazatlan"),
+                            ("America/Mendoza", "Mendoza"),
+                            ("America/Menominee", "Menominee"),
+                            ("America/Merida", "Merida"),
+                            ("America/Metlakatla", "Metlakatla"),
+                            ("America/Mexico_City", "Mexico_City"),
+                            ("America/Miquelon", "Miquelon"),
+                            ("America/Moncton", "Moncton"),
+                            ("America/Monterrey", "Monterrey"),
+                            ("America/Montevideo", "Montevideo"),
+                            ("America/Montreal", "Montreal"),
+                            ("America/Montserrat", "Montserrat"),
+                            ("America/Nassau", "Nassau"),
+                            ("America/New_York", "New_York"),
+                            ("America/Nipigon", "Nipigon"),
+                            ("America/Nome", "Nome"),
+                            ("America/Noronha", "Noronha"),
+                            ("America/North_Dakota/Beulah", "North_Dakota/Beulah"),
+                            ("America/North_Dakota/Center", "North_Dakota/Center"),
+                            (
+                                "America/North_Dakota/New_Salem",
+                                "North_Dakota/New_Salem",
+                            ),
+                            ("America/Nuuk", "Nuuk"),
+                            ("America/Ojinaga", "Ojinaga"),
+                            ("America/Panama", "Panama"),
+                            ("America/Pangnirtung", "Pangnirtung"),
+                            ("America/Paramaribo", "Paramaribo"),
+                            ("America/Phoenix", "Phoenix"),
+                            ("America/Port-au-Prince", "Port-au-Prince"),
+                            ("America/Port_of_Spain", "Port_of_Spain"),
+                            ("America/Porto_Acre", "Porto_Acre"),
+                            ("America/Porto_Velho", "Porto_Velho"),
+                            ("America/Puerto_Rico", "Puerto_Rico"),
+                            ("America/Punta_Arenas", "Punta_Arenas"),
+                            ("America/Rainy_River", "Rainy_River"),
+                            ("America/Rankin_Inlet", "Rankin_Inlet"),
+                            ("America/Recife", "Recife"),
+                            ("America/Regina", "Regina"),
+                            ("America/Resolute", "Resolute"),
+                            ("America/Rio_Branco", "Rio_Branco"),
+                            ("America/Rosario", "Rosario"),
+                            ("America/Santa_Isabel", "Santa_Isabel"),
+                            ("America/Santarem", "Santarem"),
+                            ("America/Santiago", "Santiago"),
+                            ("America/Santo_Domingo", "Santo_Domingo"),
+                            ("America/Sao_Paulo", "Sao_Paulo"),
+                            ("America/Scoresbysund", "Scoresbysund"),
+                            ("America/Shiprock", "Shiprock"),
+                            ("America/Sitka", "Sitka"),
+                            ("America/St_Barthelemy", "St_Barthelemy"),
+                            ("America/St_Johns", "St_Johns"),
+                            ("America/St_Kitts", "St_Kitts"),
+                            ("America/St_Lucia", "St_Lucia"),
+                            ("America/St_Thomas", "St_Thomas"),
+                            ("America/St_Vincent", "St_Vincent"),
+                            ("America/Swift_Current", "Swift_Current"),
+                            ("America/Tegucigalpa", "Tegucigalpa"),
+                            ("America/Thule", "Thule"),
+                            ("America/Thunder_Bay", "Thunder_Bay"),
+                            ("America/Tijuana", "Tijuana"),
+                            ("America/Toronto", "Toronto"),
+                            ("America/Tortola", "Tortola"),
+                            ("America/Vancouver", "Vancouver"),
+                            ("America/Virgin", "Virgin"),
+                            ("America/Whitehorse", "Whitehorse"),
+                            ("America/Winnipeg", "Winnipeg"),
+                            ("America/Yakutat", "Yakutat"),
+                            ("America/Yellowknife", "Yellowknife"),
+                        ],
+                    ),
+                    (
+                        "Antarctica",
+                        [
+                            ("Antarctica/Casey", "Casey"),
+                            ("Antarctica/Davis", "Davis"),
+                            ("Antarctica/DumontDUrville", "DumontDUrville"),
+                            ("Antarctica/Macquarie", "Macquarie"),
+                            ("Antarctica/Mawson", "Mawson"),
+                            ("Antarctica/McMurdo", "McMurdo"),
+                            ("Antarctica/Palmer", "Palmer"),
+                            ("Antarctica/Rothera", "Rothera"),
+                            ("Antarctica/South_Pole", "South_Pole"),
+                            ("Antarctica/Syowa", "Syowa"),
+                            ("Antarctica/Troll", "Troll"),
+                            ("Antarctica/Vostok", "Vostok"),
+                        ],
+                    ),
+                    ("Arctic", [("Arctic/Longyearbyen", "Longyearbyen")]),
+                    (
+                        "Asia",
+                        [
+                            ("Asia/Aden", "Aden"),
+                            ("Asia/Almaty", "Almaty"),
+                            ("Asia/Amman", "Amman"),
+                            ("Asia/Anadyr", "Anadyr"),
+                            ("Asia/Aqtau", "Aqtau"),
+                            ("Asia/Aqtobe", "Aqtobe"),
+                            ("Asia/Ashgabat", "Ashgabat"),
+                            ("Asia/Ashkhabad", "Ashkhabad"),
+                            ("Asia/Atyrau", "Atyrau"),
+                            ("Asia/Baghdad", "Baghdad"),
+                            ("Asia/Bahrain", "Bahrain"),
+                            ("Asia/Baku", "Baku"),
+                            ("Asia/Bangkok", "Bangkok"),
+                            ("Asia/Barnaul", "Barnaul"),
+                            ("Asia/Beirut", "Beirut"),
+                            ("Asia/Bishkek", "Bishkek"),
+                            ("Asia/Brunei", "Brunei"),
+                            ("Asia/Calcutta", "Calcutta"),
+                            ("Asia/Chita", "Chita"),
+                            ("Asia/Choibalsan", "Choibalsan"),
+                            ("Asia/Chongqing", "Chongqing"),
+                            ("Asia/Chungking", "Chungking"),
+                            ("Asia/Colombo", "Colombo"),
+                            ("Asia/Dacca", "Dacca"),
+                            ("Asia/Damascus", "Damascus"),
+                            ("Asia/Dhaka", "Dhaka"),
+                            ("Asia/Dili", "Dili"),
+                            ("Asia/Dubai", "Dubai"),
+                            ("Asia/Dushanbe", "Dushanbe"),
+                            ("Asia/Famagusta", "Famagusta"),
+                            ("Asia/Gaza", "Gaza"),
+                            ("Asia/Harbin", "Harbin"),
+                            ("Asia/Hebron", "Hebron"),
+                            ("Asia/Ho_Chi_Minh", "Ho_Chi_Minh"),
+                            ("Asia/Hong_Kong", "Hong_Kong"),
+                            ("Asia/Hovd", "Hovd"),
+                            ("Asia/Irkutsk", "Irkutsk"),
+                            ("Asia/Istanbul", "Istanbul"),
+                            ("Asia/Jakarta", "Jakarta"),
+                            ("Asia/Jayapura", "Jayapura"),
+                            ("Asia/Jerusalem", "Jerusalem"),
+                            ("Asia/Kabul", "Kabul"),
+                            ("Asia/Kamchatka", "Kamchatka"),
+                            ("Asia/Karachi", "Karachi"),
+                            ("Asia/Kashgar", "Kashgar"),
+                            ("Asia/Kathmandu", "Kathmandu"),
+                            ("Asia/Katmandu", "Katmandu"),
+                            ("Asia/Khandyga", "Khandyga"),
+                            ("Asia/Kolkata", "Kolkata"),
+                            ("Asia/Krasnoyarsk", "Krasnoyarsk"),
+                            ("Asia/Kuala_Lumpur", "Kuala_Lumpur"),
+                            ("Asia/Kuching", "Kuching"),
+                            ("Asia/Kuwait", "Kuwait"),
+                            ("Asia/Macao", "Macao"),
+                            ("Asia/Macau", "Macau"),
+                            ("Asia/Magadan", "Magadan"),
+                            ("Asia/Makassar", "Makassar"),
+                            ("Asia/Manila", "Manila"),
+                            ("Asia/Muscat", "Muscat"),
+                            ("Asia/Nicosia", "Nicosia"),
+                            ("Asia/Novokuznetsk", "Novokuznetsk"),
+                            ("Asia/Novosibirsk", "Novosibirsk"),
+                            ("Asia/Omsk", "Omsk"),
+                            ("Asia/Oral", "Oral"),
+                            ("Asia/Phnom_Penh", "Phnom_Penh"),
+                            ("Asia/Pontianak", "Pontianak"),
+                            ("Asia/Pyongyang", "Pyongyang"),
+                            ("Asia/Qatar", "Qatar"),
+                            ("Asia/Qostanay", "Qostanay"),
+                            ("Asia/Qyzylorda", "Qyzylorda"),
+                            ("Asia/Rangoon", "Rangoon"),
+                            ("Asia/Riyadh", "Riyadh"),
+                            ("Asia/Saigon", "Saigon"),
+                            ("Asia/Sakhalin", "Sakhalin"),
+                            ("Asia/Samarkand", "Samarkand"),
+                            ("Asia/Seoul", "Seoul"),
+                            ("Asia/Shanghai", "Shanghai"),
+                            ("Asia/Singapore", "Singapore"),
+                            ("Asia/Srednekolymsk", "Srednekolymsk"),
+                            ("Asia/Taipei", "Taipei"),
+                            ("Asia/Tashkent", "Tashkent"),
+                            ("Asia/Tbilisi", "Tbilisi"),
+                            ("Asia/Tehran", "Tehran"),
+                            ("Asia/Tel_Aviv", "Tel_Aviv"),
+                            ("Asia/Thimbu", "Thimbu"),
+                            ("Asia/Thimphu", "Thimphu"),
+                            ("Asia/Tokyo", "Tokyo"),
+                            ("Asia/Tomsk", "Tomsk"),
+                            ("Asia/Ujung_Pandang", "Ujung_Pandang"),
+                            ("Asia/Ulaanbaatar", "Ulaanbaatar"),
+                            ("Asia/Ulan_Bator", "Ulan_Bator"),
+                            ("Asia/Urumqi", "Urumqi"),
+                            ("Asia/Ust-Nera", "Ust-Nera"),
+                            ("Asia/Vientiane", "Vientiane"),
+                            ("Asia/Vladivostok", "Vladivostok"),
+                            ("Asia/Yakutsk", "Yakutsk"),
+                            ("Asia/Yangon", "Yangon"),
+                            ("Asia/Yekaterinburg", "Yekaterinburg"),
+                            ("Asia/Yerevan", "Yerevan"),
+                        ],
+                    ),
+                    (
+                        "Atlantic",
+                        [
+                            ("Atlantic/Azores", "Azores"),
+                            ("Atlantic/Bermuda", "Bermuda"),
+                            ("Atlantic/Canary", "Canary"),
+                            ("Atlantic/Cape_Verde", "Cape_Verde"),
+                            ("Atlantic/Faeroe", "Faeroe"),
+                            ("Atlantic/Faroe", "Faroe"),
+                            ("Atlantic/Jan_Mayen", "Jan_Mayen"),
+                            ("Atlantic/Madeira", "Madeira"),
+                            ("Atlantic/Reykjavik", "Reykjavik"),
+                            ("Atlantic/South_Georgia", "South_Georgia"),
+                            ("Atlantic/St_Helena", "St_Helena"),
+                            ("Atlantic/Stanley", "Stanley"),
+                        ],
+                    ),
+                    (
+                        "Australia",
+                        [
+                            ("Australia/ACT", "ACT"),
+                            ("Australia/Adelaide", "Adelaide"),
+                            ("Australia/Brisbane", "Brisbane"),
+                            ("Australia/Broken_Hill", "Broken_Hill"),
+                            ("Australia/Canberra", "Canberra"),
+                            ("Australia/Currie", "Currie"),
+                            ("Australia/Darwin", "Darwin"),
+                            ("Australia/Eucla", "Eucla"),
+                            ("Australia/Hobart", "Hobart"),
+                            ("Australia/LHI", "LHI"),
+                            ("Australia/Lindeman", "Lindeman"),
+                            ("Australia/Lord_Howe", "Lord_Howe"),
+                            ("Australia/Melbourne", "Melbourne"),
+                            ("Australia/NSW", "NSW"),
+                            ("Australia/North", "North"),
+                            ("Australia/Perth", "Perth"),
+                            ("Australia/Queensland", "Queensland"),
+                            ("Australia/South", "South"),
+                            ("Australia/Sydney", "Sydney"),
+                            ("Australia/Tasmania", "Tasmania"),
+                            ("Australia/Victoria", "Victoria"),
+                            ("Australia/West", "West"),
+                            ("Australia/Yancowinna", "Yancowinna"),
+                        ],
+                    ),
+                    (
+                        "Brazil",
+                        [
+                            ("Brazil/Acre", "Acre"),
+                            ("Brazil/DeNoronha", "DeNoronha"),
+                            ("Brazil/East", "East"),
+                            ("Brazil/West", "West"),
+                        ],
+                    ),
+                    (
+                        "Canada",
+                        [
+                            ("Canada/Atlantic", "Atlantic"),
+                            ("Canada/Central", "Central"),
+                            ("Canada/Eastern", "Eastern"),
+                            ("Canada/Mountain", "Mountain"),
+                            ("Canada/Newfoundland", "Newfoundland"),
+                            ("Canada/Pacific", "Pacific"),
+                            ("Canada/Saskatchewan", "Saskatchewan"),
+                            ("Canada/Yukon", "Yukon"),
+                        ],
+                    ),
+                    (
+                        "Chile",
+                        [
+                            ("Chile/Continental", "Continental"),
+                            ("Chile/EasterIsland", "EasterIsland"),
+                        ],
+                    ),
+                    (
+                        "Etc",
+                        [
+                            ("Etc/Greenwich", "Greenwich"),
+                            ("Etc/UCT", "UCT"),
+                            ("Etc/UTC", "UTC"),
+                            ("Etc/Universal", "Universal"),
+                            ("Etc/Zulu", "Zulu"),
+                        ],
+                    ),
+                    (
+                        "Europe",
+                        [
+                            ("Europe/Amsterdam", "Amsterdam"),
+                            ("Europe/Andorra", "Andorra"),
+                            ("Europe/Astrakhan", "Astrakhan"),
+                            ("Europe/Athens", "Athens"),
+                            ("Europe/Belfast", "Belfast"),
+                            ("Europe/Belgrade", "Belgrade"),
+                            ("Europe/Berlin", "Berlin"),
+                            ("Europe/Bratislava", "Bratislava"),
+                            ("Europe/Brussels", "Brussels"),
+                            ("Europe/Bucharest", "Bucharest"),
+                            ("Europe/Budapest", "Budapest"),
+                            ("Europe/Busingen", "Busingen"),
+                            ("Europe/Chisinau", "Chisinau"),
+                            ("Europe/Copenhagen", "Copenhagen"),
+                            ("Europe/Dublin", "Dublin"),
+                            ("Europe/Gibraltar", "Gibraltar"),
+                            ("Europe/Guernsey", "Guernsey"),
+                            ("Europe/Helsinki", "Helsinki"),
+                            ("Europe/Isle_of_Man", "Isle_of_Man"),
+                            ("Europe/Istanbul", "Istanbul"),
+                            ("Europe/Jersey", "Jersey"),
+                            ("Europe/Kaliningrad", "Kaliningrad"),
+                            ("Europe/Kiev", "Kiev"),
+                            ("Europe/Kirov", "Kirov"),
+                            ("Europe/Kyiv", "Kyiv"),
+                            ("Europe/Lisbon", "Lisbon"),
+                            ("Europe/Ljubljana", "Ljubljana"),
+                            ("Europe/London", "London"),
+                            ("Europe/Luxembourg", "Luxembourg"),
+                            ("Europe/Madrid", "Madrid"),
+                            ("Europe/Malta", "Malta"),
+                            ("Europe/Mariehamn", "Mariehamn"),
+                            ("Europe/Minsk", "Minsk"),
+                            ("Europe/Monaco", "Monaco"),
+                            ("Europe/Moscow", "Moscow"),
+                            ("Europe/Nicosia", "Nicosia"),
+                            ("Europe/Oslo", "Oslo"),
+                            ("Europe/Paris", "Paris"),
+                            ("Europe/Podgorica", "Podgorica"),
+                            ("Europe/Prague", "Prague"),
+                            ("Europe/Riga", "Riga"),
+                            ("Europe/Rome", "Rome"),
+                            ("Europe/Samara", "Samara"),
+                            ("Europe/San_Marino", "San_Marino"),
+                            ("Europe/Sarajevo", "Sarajevo"),
+                            ("Europe/Saratov", "Saratov"),
+                            ("Europe/Simferopol", "Simferopol"),
+                            ("Europe/Skopje", "Skopje"),
+                            ("Europe/Sofia", "Sofia"),
+                            ("Europe/Stockholm", "Stockholm"),
+                            ("Europe/Tallinn", "Tallinn"),
+                            ("Europe/Tirane", "Tirane"),
+                            ("Europe/Tiraspol", "Tiraspol"),
+                            ("Europe/Ulyanovsk", "Ulyanovsk"),
+                            ("Europe/Uzhgorod", "Uzhgorod"),
+                            ("Europe/Vaduz", "Vaduz"),
+                            ("Europe/Vatican", "Vatican"),
+                            ("Europe/Vienna", "Vienna"),
+                            ("Europe/Vilnius", "Vilnius"),
+                            ("Europe/Volgograd", "Volgograd"),
+                            ("Europe/Warsaw", "Warsaw"),
+                            ("Europe/Zagreb", "Zagreb"),
+                            ("Europe/Zaporozhye", "Zaporozhye"),
+                            ("Europe/Zurich", "Zurich"),
+                        ],
+                    ),
+                    (
+                        "Indian",
+                        [
+                            ("Indian/Antananarivo", "Antananarivo"),
+                            ("Indian/Chagos", "Chagos"),
+                            ("Indian/Christmas", "Christmas"),
+                            ("Indian/Cocos", "Cocos"),
+                            ("Indian/Comoro", "Comoro"),
+                            ("Indian/Kerguelen", "Kerguelen"),
+                            ("Indian/Mahe", "Mahe"),
+                            ("Indian/Maldives", "Maldives"),
+                            ("Indian/Mauritius", "Mauritius"),
+                            ("Indian/Mayotte", "Mayotte"),
+                            ("Indian/Reunion", "Reunion"),
+                        ],
+                    ),
+                    (
+                        "Mexico",
+                        [
+                            ("Mexico/BajaNorte", "BajaNorte"),
+                            ("Mexico/BajaSur", "BajaSur"),
+                            ("Mexico/General", "General"),
+                        ],
+                    ),
+                    (
+                        "Other",
+                        [
+                            ("CET", "CET"),
+                            ("CST6CDT", "CST6CDT"),
+                            ("Cuba", "Cuba"),
+                            ("EET", "EET"),
+                            ("EST", "EST"),
+                            ("EST5EDT", "EST5EDT"),
+                            ("Egypt", "Egypt"),
+                            ("Eire", "Eire"),
+                            ("GB", "GB"),
+                            ("GB-Eire", "GB-Eire"),
+                            ("Greenwich", "Greenwich"),
+                            ("HST", "HST"),
+                            ("Hongkong", "Hongkong"),
+                            ("Iceland", "Iceland"),
+                            ("Iran", "Iran"),
+                            ("Israel", "Israel"),
+                            ("Jamaica", "Jamaica"),
+                            ("Japan", "Japan"),
+                            ("Kwajalein", "Kwajalein"),
+                            ("Libya", "Libya"),
+                            ("MET", "MET"),
+                            ("MST", "MST"),
+                            ("MST7MDT", "MST7MDT"),
+                            ("NZ", "NZ"),
+                            ("NZ-CHAT", "NZ-CHAT"),
+                            ("Navajo", "Navajo"),
+                            ("PRC", "PRC"),
+                            ("PST8PDT", "PST8PDT"),
+                            ("Poland", "Poland"),
+                            ("Portugal", "Portugal"),
+                            ("ROC", "ROC"),
+                            ("ROK", "ROK"),
+                            ("Singapore", "Singapore"),
+                            ("Turkey", "Turkey"),
+                            ("UCT", "UCT"),
+                            ("UTC", "UTC"),
+                            ("Universal", "Universal"),
+                            ("W-SU", "W-SU"),
+                            ("WET", "WET"),
+                            ("Zulu", "Zulu"),
+                        ],
+                    ),
+                    (
+                        "Pacific",
+                        [
+                            ("Pacific/Apia", "Apia"),
+                            ("Pacific/Auckland", "Auckland"),
+                            ("Pacific/Bougainville", "Bougainville"),
+                            ("Pacific/Chatham", "Chatham"),
+                            ("Pacific/Chuuk", "Chuuk"),
+                            ("Pacific/Easter", "Easter"),
+                            ("Pacific/Efate", "Efate"),
+                            ("Pacific/Enderbury", "Enderbury"),
+                            ("Pacific/Fakaofo", "Fakaofo"),
+                            ("Pacific/Fiji", "Fiji"),
+                            ("Pacific/Funafuti", "Funafuti"),
+                            ("Pacific/Galapagos", "Galapagos"),
+                            ("Pacific/Gambier", "Gambier"),
+                            ("Pacific/Guadalcanal", "Guadalcanal"),
+                            ("Pacific/Guam", "Guam"),
+                            ("Pacific/Honolulu", "Honolulu"),
+                            ("Pacific/Johnston", "Johnston"),
+                            ("Pacific/Kanton", "Kanton"),
+                            ("Pacific/Kiritimati", "Kiritimati"),
+                            ("Pacific/Kosrae", "Kosrae"),
+                            ("Pacific/Kwajalein", "Kwajalein"),
+                            ("Pacific/Majuro", "Majuro"),
+                            ("Pacific/Marquesas", "Marquesas"),
+                            ("Pacific/Midway", "Midway"),
+                            ("Pacific/Nauru", "Nauru"),
+                            ("Pacific/Niue", "Niue"),
+                            ("Pacific/Norfolk", "Norfolk"),
+                            ("Pacific/Noumea", "Noumea"),
+                            ("Pacific/Pago_Pago", "Pago_Pago"),
+                            ("Pacific/Palau", "Palau"),
+                            ("Pacific/Pitcairn", "Pitcairn"),
+                            ("Pacific/Pohnpei", "Pohnpei"),
+                            ("Pacific/Ponape", "Ponape"),
+                            ("Pacific/Port_Moresby", "Port_Moresby"),
+                            ("Pacific/Rarotonga", "Rarotonga"),
+                            ("Pacific/Saipan", "Saipan"),
+                            ("Pacific/Samoa", "Samoa"),
+                            ("Pacific/Tahiti", "Tahiti"),
+                            ("Pacific/Tarawa", "Tarawa"),
+                            ("Pacific/Tongatapu", "Tongatapu"),
+                            ("Pacific/Truk", "Truk"),
+                            ("Pacific/Wake", "Wake"),
+                            ("Pacific/Wallis", "Wallis"),
+                            ("Pacific/Yap", "Yap"),
+                        ],
+                    ),
+                    (
+                        "US",
+                        [
+                            ("US/Alaska", "Alaska"),
+                            ("US/Aleutian", "Aleutian"),
+                            ("US/Arizona", "Arizona"),
+                            ("US/Central", "Central"),
+                            ("US/East-Indiana", "East-Indiana"),
+                            ("US/Eastern", "Eastern"),
+                            ("US/Hawaii", "Hawaii"),
+                            ("US/Indiana-Starke", "Indiana-Starke"),
+                            ("US/Michigan", "Michigan"),
+                            ("US/Mountain", "Mountain"),
+                            ("US/Pacific", "Pacific"),
+                            ("US/Samoa", "Samoa"),
+                        ],
+                    ),
+                ],
+                default="Asia/Ho_Chi_Minh",
+                max_length=50,
+                verbose_name="location",
+            ),
+        ),
+    ]

judge/migrations/0148_course_courseassignment_courseresource_courserole.py

@@ -0,0 +1,187 @@
+# Generated by Django 3.2.16 on 2023-01-31 15:49
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0147_alter_profile_timezone"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Course",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("name", models.CharField(max_length=128, verbose_name="course name")),
+                ("about", models.TextField(verbose_name="organization description")),
+                ("ending_time", models.DateTimeField(verbose_name="ending time")),
+                (
+                    "is_public",
+                    models.BooleanField(default=False, verbose_name="publicly visible"),
+                ),
+                (
+                    "slug",
+                    models.SlugField(
+                        help_text="Course name shown in URL",
+                        max_length=128,
+                        unique=True,
+                        validators=[
+                            django.core.validators.RegexValidator(
+                                "^[-a-zA-Z0-9]+$", "Only alphanumeric and hyphens"
+                            )
+                        ],
+                        verbose_name="course slug",
+                    ),
+                ),
+                (
+                    "is_open",
+                    models.BooleanField(
+                        default=False, verbose_name="public registration"
+                    ),
+                ),
+                (
+                    "image_url",
+                    models.CharField(
+                        blank=True,
+                        default="",
+                        max_length=150,
+                        verbose_name="course image",
+                    ),
+                ),
+                (
+                    "organizations",
+                    models.ManyToManyField(
+                        blank=True,
+                        help_text="If private, only these organizations may see the course",
+                        to="judge.Organization",
+                        verbose_name="organizations",
+                    ),
+                ),
+            ],
+        ),
+        migrations.CreateModel(
+            name="CourseRole",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "role",
+                    models.CharField(
+                        choices=[
+                            ("ST", "Student"),
+                            ("AS", "Assistant"),
+                            ("TE", "Teacher"),
+                        ],
+                        default="ST",
+                        max_length=2,
+                    ),
+                ),
+                (
+                    "course",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="judge.course",
+                        verbose_name="course",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="user_of_course",
+                        to="judge.profile",
+                        verbose_name="user",
+                    ),
+                ),
+            ],
+        ),
+        migrations.CreateModel(
+            name="CourseResource",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "files",
+                    models.FileField(
+                        blank=True, null=True, upload_to="", verbose_name="course files"
+                    ),
+                ),
+                (
+                    "description",
+                    models.CharField(
+                        blank=True, max_length=150, verbose_name="description"
+                    ),
+                ),
+                ("order", models.IntegerField(default=None, null=True)),
+                (
+                    "is_public",
+                    models.BooleanField(default=False, verbose_name="publicly visible"),
+                ),
+                (
+                    "course",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="judge.course",
+                        verbose_name="course",
+                    ),
+                ),
+            ],
+        ),
+        migrations.CreateModel(
+            name="CourseAssignment",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("points", models.FloatField(verbose_name="points")),
+                (
+                    "contest",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="judge.contest",
+                        verbose_name="contest",
+                    ),
+                ),
+                (
+                    "course",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to="judge.course",
+                        verbose_name="course",
+                    ),
+                ),
+            ],
+        ),
+    ]

judge/migrations/0149_auto_20230202_0902.py

@@ -0,0 +1,682 @@
+# Generated by Django 3.2.16 on 2023-02-02 02:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0148_course_courseassignment_courseresource_courserole"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="notification",
+            name="category",
+            field=models.CharField(max_length=1000, verbose_name="category"),
+        ),
+        migrations.AlterField(
+            model_name="profile",
+            name="timezone",
+            field=models.CharField(
+                choices=[
+                    (
+                        "Africa",
+                        [
+                            ("Africa/Abidjan", "Abidjan"),
+                            ("Africa/Accra", "Accra"),
+                            ("Africa/Addis_Ababa", "Addis_Ababa"),
+                            ("Africa/Algiers", "Algiers"),
+                            ("Africa/Asmara", "Asmara"),
+                            ("Africa/Asmera", "Asmera"),
+                            ("Africa/Bamako", "Bamako"),
+                            ("Africa/Bangui", "Bangui"),
+                            ("Africa/Banjul", "Banjul"),
+                            ("Africa/Bissau", "Bissau"),
+                            ("Africa/Blantyre", "Blantyre"),
+                            ("Africa/Brazzaville", "Brazzaville"),
+                            ("Africa/Bujumbura", "Bujumbura"),
+                            ("Africa/Cairo", "Cairo"),
+                            ("Africa/Casablanca", "Casablanca"),
+                            ("Africa/Ceuta", "Ceuta"),
+                            ("Africa/Conakry", "Conakry"),
+                            ("Africa/Dakar", "Dakar"),
+                            ("Africa/Dar_es_Salaam", "Dar_es_Salaam"),
+                            ("Africa/Djibouti", "Djibouti"),
+                            ("Africa/Douala", "Douala"),
+                            ("Africa/El_Aaiun", "El_Aaiun"),
+                            ("Africa/Freetown", "Freetown"),
+                            ("Africa/Gaborone", "Gaborone"),
+                            ("Africa/Harare", "Harare"),
+                            ("Africa/Johannesburg", "Johannesburg"),
+                            ("Africa/Juba", "Juba"),
+                            ("Africa/Kampala", "Kampala"),
+                            ("Africa/Khartoum", "Khartoum"),
+                            ("Africa/Kigali", "Kigali"),
+                            ("Africa/Kinshasa", "Kinshasa"),
+                            ("Africa/Lagos", "Lagos"),
+                            ("Africa/Libreville", "Libreville"),
+                            ("Africa/Lome", "Lome"),
+                            ("Africa/Luanda", "Luanda"),
+                            ("Africa/Lubumbashi", "Lubumbashi"),
+                            ("Africa/Lusaka", "Lusaka"),
+                            ("Africa/Malabo", "Malabo"),
+                            ("Africa/Maputo", "Maputo"),
+                            ("Africa/Maseru", "Maseru"),
+                            ("Africa/Mbabane", "Mbabane"),
+                            ("Africa/Mogadishu", "Mogadishu"),
+                            ("Africa/Monrovia", "Monrovia"),
+                            ("Africa/Nairobi", "Nairobi"),
+                            ("Africa/Ndjamena", "Ndjamena"),
+                            ("Africa/Niamey", "Niamey"),
+                            ("Africa/Nouakchott", "Nouakchott"),
+                            ("Africa/Ouagadougou", "Ouagadougou"),
+                            ("Africa/Porto-Novo", "Porto-Novo"),
+                            ("Africa/Sao_Tome", "Sao_Tome"),
+                            ("Africa/Timbuktu", "Timbuktu"),
+                            ("Africa/Tripoli", "Tripoli"),
+                            ("Africa/Tunis", "Tunis"),
+                            ("Africa/Windhoek", "Windhoek"),
+                        ],
+                    ),
+                    (
+                        "America",
+                        [
+                            ("America/Adak", "Adak"),
+                            ("America/Anchorage", "Anchorage"),
+                            ("America/Anguilla", "Anguilla"),
+                            ("America/Antigua", "Antigua"),
+                            ("America/Araguaina", "Araguaina"),
+                            (
+                                "America/Argentina/Buenos_Aires",
+                                "Argentina/Buenos_Aires",
+                            ),
+                            ("America/Argentina/Catamarca", "Argentina/Catamarca"),
+                            (
+                                "America/Argentina/ComodRivadavia",
+                                "Argentina/ComodRivadavia",
+                            ),
+                            ("America/Argentina/Cordoba", "Argentina/Cordoba"),
+                            ("America/Argentina/Jujuy", "Argentina/Jujuy"),
+                            ("America/Argentina/La_Rioja", "Argentina/La_Rioja"),
+                            ("America/Argentina/Mendoza", "Argentina/Mendoza"),
+                            (
+                                "America/Argentina/Rio_Gallegos",
+                                "Argentina/Rio_Gallegos",
+                            ),
+                            ("America/Argentina/Salta", "Argentina/Salta"),
+                            ("America/Argentina/San_Juan", "Argentina/San_Juan"),
+                            ("America/Argentina/San_Luis", "Argentina/San_Luis"),
+                            ("America/Argentina/Tucuman", "Argentina/Tucuman"),
+                            ("America/Argentina/Ushuaia", "Argentina/Ushuaia"),
+                            ("America/Aruba", "Aruba"),
+                            ("America/Asuncion", "Asuncion"),
+                            ("America/Atikokan", "Atikokan"),
+                            ("America/Atka", "Atka"),
+                            ("America/Bahia", "Bahia"),
+                            ("America/Bahia_Banderas", "Bahia_Banderas"),
+                            ("America/Barbados", "Barbados"),
+                            ("America/Belem", "Belem"),
+                            ("America/Belize", "Belize"),
+                            ("America/Blanc-Sablon", "Blanc-Sablon"),
+                            ("America/Boa_Vista", "Boa_Vista"),
+                            ("America/Bogota", "Bogota"),
+                            ("America/Boise", "Boise"),
+                            ("America/Buenos_Aires", "Buenos_Aires"),
+                            ("America/Cambridge_Bay", "Cambridge_Bay"),
+                            ("America/Campo_Grande", "Campo_Grande"),
+                            ("America/Cancun", "Cancun"),
+                            ("America/Caracas", "Caracas"),
+                            ("America/Catamarca", "Catamarca"),
+                            ("America/Cayenne", "Cayenne"),
+                            ("America/Cayman", "Cayman"),
+                            ("America/Chicago", "Chicago"),
+                            ("America/Chihuahua", "Chihuahua"),
+                            ("America/Coral_Harbour", "Coral_Harbour"),
+                            ("America/Cordoba", "Cordoba"),
+                            ("America/Costa_Rica", "Costa_Rica"),
+                            ("America/Creston", "Creston"),
+                            ("America/Cuiaba", "Cuiaba"),
+                            ("America/Curacao", "Curacao"),
+                            ("America/Danmarkshavn", "Danmarkshavn"),
+                            ("America/Dawson", "Dawson"),
+                            ("America/Dawson_Creek", "Dawson_Creek"),
+                            ("America/Denver", "Denver"),
+                            ("America/Detroit", "Detroit"),
+                            ("America/Dominica", "Dominica"),
+                            ("America/Edmonton", "Edmonton"),
+                            ("America/Eirunepe", "Eirunepe"),
+                            ("America/El_Salvador", "El_Salvador"),
+                            ("America/Ensenada", "Ensenada"),
+                            ("America/Fort_Nelson", "Fort_Nelson"),
+                            ("America/Fort_Wayne", "Fort_Wayne"),
+                            ("America/Fortaleza", "Fortaleza"),
+                            ("America/Glace_Bay", "Glace_Bay"),
+                            ("America/Godthab", "Godthab"),
+                            ("America/Goose_Bay", "Goose_Bay"),
+                            ("America/Grand_Turk", "Grand_Turk"),
+                            ("America/Grenada", "Grenada"),
+                            ("America/Guadeloupe", "Guadeloupe"),
+                            ("America/Guatemala", "Guatemala"),
+                            ("America/Guayaquil", "Guayaquil"),
+                            ("America/Guyana", "Guyana"),
+                            ("America/Halifax", "Halifax"),
+                            ("America/Havana", "Havana"),
+                            ("America/Hermosillo", "Hermosillo"),
+                            ("America/Indiana/Indianapolis", "Indiana/Indianapolis"),
+                            ("America/Indiana/Knox", "Indiana/Knox"),
+                            ("America/Indiana/Marengo", "Indiana/Marengo"),
+                            ("America/Indiana/Petersburg", "Indiana/Petersburg"),
+                            ("America/Indiana/Tell_City", "Indiana/Tell_City"),
+                            ("America/Indiana/Vevay", "Indiana/Vevay"),
+                            ("America/Indiana/Vincennes", "Indiana/Vincennes"),
+                            ("America/Indiana/Winamac", "Indiana/Winamac"),
+                            ("America/Indianapolis", "Indianapolis"),
+                            ("America/Inuvik", "Inuvik"),
+                            ("America/Iqaluit", "Iqaluit"),
+                            ("America/Jamaica", "Jamaica"),
+                            ("America/Jujuy", "Jujuy"),
+                            ("America/Juneau", "Juneau"),
+                            ("America/Kentucky/Louisville", "Kentucky/Louisville"),
+                            ("America/Kentucky/Monticello", "Kentucky/Monticello"),
+                            ("America/Knox_IN", "Knox_IN"),
+                            ("America/Kralendijk", "Kralendijk"),
+                            ("America/La_Paz", "La_Paz"),
+                            ("America/Lima", "Lima"),
+                            ("America/Los_Angeles", "Los_Angeles"),
+                            ("America/Louisville", "Louisville"),
+                            ("America/Lower_Princes", "Lower_Princes"),
+                            ("America/Maceio", "Maceio"),
+                            ("America/Managua", "Managua"),
+                            ("America/Manaus", "Manaus"),
+                            ("America/Marigot", "Marigot"),
+                            ("America/Martinique", "Martinique"),
+                            ("America/Matamoros", "Matamoros"),
+                            ("America/Mazatlan", "Mazatlan"),
+                            ("America/Mendoza", "Mendoza"),
+                            ("America/Menominee", "Menominee"),
+                            ("America/Merida", "Merida"),
+                            ("America/Metlakatla", "Metlakatla"),
+                            ("America/Mexico_City", "Mexico_City"),
+                            ("America/Miquelon", "Miquelon"),
+                            ("America/Moncton", "Moncton"),
+                            ("America/Monterrey", "Monterrey"),
+                            ("America/Montevideo", "Montevideo"),
+                            ("America/Montreal", "Montreal"),
+                            ("America/Montserrat", "Montserrat"),
+                            ("America/Nassau", "Nassau"),
+                            ("America/New_York", "New_York"),
+                            ("America/Nipigon", "Nipigon"),
+                            ("America/Nome", "Nome"),
+                            ("America/Noronha", "Noronha"),
+                            ("America/North_Dakota/Beulah", "North_Dakota/Beulah"),
+                            ("America/North_Dakota/Center", "North_Dakota/Center"),
+                            (
+                                "America/North_Dakota/New_Salem",
+                                "North_Dakota/New_Salem",
+                            ),
+                            ("America/Nuuk", "Nuuk"),
+                            ("America/Ojinaga", "Ojinaga"),
+                            ("America/Panama", "Panama"),
+                            ("America/Pangnirtung", "Pangnirtung"),
+                            ("America/Paramaribo", "Paramaribo"),
+                            ("America/Phoenix", "Phoenix"),
+                            ("America/Port-au-Prince", "Port-au-Prince"),
+                            ("America/Port_of_Spain", "Port_of_Spain"),
+                            ("America/Porto_Acre", "Porto_Acre"),
+                            ("America/Porto_Velho", "Porto_Velho"),
+                            ("America/Puerto_Rico", "Puerto_Rico"),
+                            ("America/Punta_Arenas", "Punta_Arenas"),
+                            ("America/Rainy_River", "Rainy_River"),
+                            ("America/Rankin_Inlet", "Rankin_Inlet"),
+                            ("America/Recife", "Recife"),
+                            ("America/Regina", "Regina"),
+                            ("America/Resolute", "Resolute"),
+                            ("America/Rio_Branco", "Rio_Branco"),
+                            ("America/Rosario", "Rosario"),
+                            ("America/Santa_Isabel", "Santa_Isabel"),
+                            ("America/Santarem", "Santarem"),
+                            ("America/Santiago", "Santiago"),
+                            ("America/Santo_Domingo", "Santo_Domingo"),
+                            ("America/Sao_Paulo", "Sao_Paulo"),
+                            ("America/Scoresbysund", "Scoresbysund"),
+                            ("America/Shiprock", "Shiprock"),
+                            ("America/Sitka", "Sitka"),
+                            ("America/St_Barthelemy", "St_Barthelemy"),
+                            ("America/St_Johns", "St_Johns"),
+                            ("America/St_Kitts", "St_Kitts"),
+                            ("America/St_Lucia", "St_Lucia"),
+                            ("America/St_Thomas", "St_Thomas"),
+                            ("America/St_Vincent", "St_Vincent"),
+                            ("America/Swift_Current", "Swift_Current"),
+                            ("America/Tegucigalpa", "Tegucigalpa"),
+                            ("America/Thule", "Thule"),
+                            ("America/Thunder_Bay", "Thunder_Bay"),
+                            ("America/Tijuana", "Tijuana"),
+                            ("America/Toronto", "Toronto"),
+                            ("America/Tortola", "Tortola"),
+                            ("America/Vancouver", "Vancouver"),
+                            ("America/Virgin", "Virgin"),
+                            ("America/Whitehorse", "Whitehorse"),
+                            ("America/Winnipeg", "Winnipeg"),
+                            ("America/Yakutat", "Yakutat"),
+                            ("America/Yellowknife", "Yellowknife"),
+                        ],
+                    ),
+                    (
+                        "Antarctica",
+                        [
+                            ("Antarctica/Casey", "Casey"),
+                            ("Antarctica/Davis", "Davis"),
+                            ("Antarctica/DumontDUrville", "DumontDUrville"),
+                            ("Antarctica/Macquarie", "Macquarie"),
+                            ("Antarctica/Mawson", "Mawson"),
+                            ("Antarctica/McMurdo", "McMurdo"),
+                            ("Antarctica/Palmer", "Palmer"),
+                            ("Antarctica/Rothera", "Rothera"),
+                            ("Antarctica/South_Pole", "South_Pole"),
+                            ("Antarctica/Syowa", "Syowa"),
+                            ("Antarctica/Troll", "Troll"),
+                            ("Antarctica/Vostok", "Vostok"),
+                        ],
+                    ),
+                    ("Arctic", [("Arctic/Longyearbyen", "Longyearbyen")]),
+                    (
+                        "Asia",
+                        [
+                            ("Asia/Aden", "Aden"),
+                            ("Asia/Almaty", "Almaty"),
+                            ("Asia/Amman", "Amman"),
+                            ("Asia/Anadyr", "Anadyr"),
+                            ("Asia/Aqtau", "Aqtau"),
+                            ("Asia/Aqtobe", "Aqtobe"),
+                            ("Asia/Ashgabat", "Ashgabat"),
+                            ("Asia/Ashkhabad", "Ashkhabad"),
+                            ("Asia/Atyrau", "Atyrau"),
+                            ("Asia/Baghdad", "Baghdad"),
+                            ("Asia/Bahrain", "Bahrain"),
+                            ("Asia/Baku", "Baku"),
+                            ("Asia/Bangkok", "Bangkok"),
+                            ("Asia/Barnaul", "Barnaul"),
+                            ("Asia/Beirut", "Beirut"),
+                            ("Asia/Bishkek", "Bishkek"),
+                            ("Asia/Brunei", "Brunei"),
+                            ("Asia/Calcutta", "Calcutta"),
+                            ("Asia/Chita", "Chita"),
+                            ("Asia/Choibalsan", "Choibalsan"),
+                            ("Asia/Chongqing", "Chongqing"),
+                            ("Asia/Chungking", "Chungking"),
+                            ("Asia/Colombo", "Colombo"),
+                            ("Asia/Dacca", "Dacca"),
+                            ("Asia/Damascus", "Damascus"),
+                            ("Asia/Dhaka", "Dhaka"),
+                            ("Asia/Dili", "Dili"),
+                            ("Asia/Dubai", "Dubai"),
+                            ("Asia/Dushanbe", "Dushanbe"),
+                            ("Asia/Famagusta", "Famagusta"),
+                            ("Asia/Gaza", "Gaza"),
+                            ("Asia/Harbin", "Harbin"),
+                            ("Asia/Hebron", "Hebron"),
+                            ("Asia/Ho_Chi_Minh", "Ho_Chi_Minh"),
+                            ("Asia/Hong_Kong", "Hong_Kong"),
+                            ("Asia/Hovd", "Hovd"),
+                            ("Asia/Irkutsk", "Irkutsk"),
+                            ("Asia/Istanbul", "Istanbul"),
+                            ("Asia/Jakarta", "Jakarta"),
+                            ("Asia/Jayapura", "Jayapura"),
+                            ("Asia/Jerusalem", "Jerusalem"),
+                            ("Asia/Kabul", "Kabul"),
+                            ("Asia/Kamchatka", "Kamchatka"),
+                            ("Asia/Karachi", "Karachi"),
+                            ("Asia/Kashgar", "Kashgar"),
+                            ("Asia/Kathmandu", "Kathmandu"),
+                            ("Asia/Katmandu", "Katmandu"),
+                            ("Asia/Khandyga", "Khandyga"),
+                            ("Asia/Kolkata", "Kolkata"),
+                            ("Asia/Krasnoyarsk", "Krasnoyarsk"),
+                            ("Asia/Kuala_Lumpur", "Kuala_Lumpur"),
+                            ("Asia/Kuching", "Kuching"),
+                            ("Asia/Kuwait", "Kuwait"),
+                            ("Asia/Macao", "Macao"),
+                            ("Asia/Macau", "Macau"),
+                            ("Asia/Magadan", "Magadan"),
+                            ("Asia/Makassar", "Makassar"),
+                            ("Asia/Manila", "Manila"),
+                            ("Asia/Muscat", "Muscat"),
+                            ("Asia/Nicosia", "Nicosia"),
+                            ("Asia/Novokuznetsk", "Novokuznetsk"),
+                            ("Asia/Novosibirsk", "Novosibirsk"),
+                            ("Asia/Omsk", "Omsk"),
+                            ("Asia/Oral", "Oral"),
+                            ("Asia/Phnom_Penh", "Phnom_Penh"),
+                            ("Asia/Pontianak", "Pontianak"),
+                            ("Asia/Pyongyang", "Pyongyang"),
+                            ("Asia/Qatar", "Qatar"),
+                            ("Asia/Qostanay", "Qostanay"),
+                            ("Asia/Qyzylorda", "Qyzylorda"),
+                            ("Asia/Rangoon", "Rangoon"),
+                            ("Asia/Riyadh", "Riyadh"),
+                            ("Asia/Saigon", "Saigon"),
+                            ("Asia/Sakhalin", "Sakhalin"),
+                            ("Asia/Samarkand", "Samarkand"),
+                            ("Asia/Seoul", "Seoul"),
+                            ("Asia/Shanghai", "Shanghai"),
+                            ("Asia/Singapore", "Singapore"),
+                            ("Asia/Srednekolymsk", "Srednekolymsk"),
+                            ("Asia/Taipei", "Taipei"),
+                            ("Asia/Tashkent", "Tashkent"),
+                            ("Asia/Tbilisi", "Tbilisi"),
+                            ("Asia/Tehran", "Tehran"),
+                            ("Asia/Tel_Aviv", "Tel_Aviv"),
+                            ("Asia/Thimbu", "Thimbu"),
+                            ("Asia/Thimphu", "Thimphu"),
+                            ("Asia/Tokyo", "Tokyo"),
+                            ("Asia/Tomsk", "Tomsk"),
+                            ("Asia/Ujung_Pandang", "Ujung_Pandang"),
+                            ("Asia/Ulaanbaatar", "Ulaanbaatar"),
+                            ("Asia/Ulan_Bator", "Ulan_Bator"),
+                            ("Asia/Urumqi", "Urumqi"),
+                            ("Asia/Ust-Nera", "Ust-Nera"),
+                            ("Asia/Vientiane", "Vientiane"),
+                            ("Asia/Vladivostok", "Vladivostok"),
+                            ("Asia/Yakutsk", "Yakutsk"),
+                            ("Asia/Yangon", "Yangon"),
+                            ("Asia/Yekaterinburg", "Yekaterinburg"),
+                            ("Asia/Yerevan", "Yerevan"),
+                        ],
+                    ),
+                    (
+                        "Atlantic",
+                        [
+                            ("Atlantic/Azores", "Azores"),
+                            ("Atlantic/Bermuda", "Bermuda"),
+                            ("Atlantic/Canary", "Canary"),
+                            ("Atlantic/Cape_Verde", "Cape_Verde"),
+                            ("Atlantic/Faeroe", "Faeroe"),
+                            ("Atlantic/Faroe", "Faroe"),
+                            ("Atlantic/Jan_Mayen", "Jan_Mayen"),
+                            ("Atlantic/Madeira", "Madeira"),
+                            ("Atlantic/Reykjavik", "Reykjavik"),
+                            ("Atlantic/South_Georgia", "South_Georgia"),
+                            ("Atlantic/St_Helena", "St_Helena"),
+                            ("Atlantic/Stanley", "Stanley"),
+                        ],
+                    ),
+                    (
+                        "Australia",
+                        [
+                            ("Australia/ACT", "ACT"),
+                            ("Australia/Adelaide", "Adelaide"),
+                            ("Australia/Brisbane", "Brisbane"),
+                            ("Australia/Broken_Hill", "Broken_Hill"),
+                            ("Australia/Canberra", "Canberra"),
+                            ("Australia/Currie", "Currie"),
+                            ("Australia/Darwin", "Darwin"),
+                            ("Australia/Eucla", "Eucla"),
+                            ("Australia/Hobart", "Hobart"),
+                            ("Australia/LHI", "LHI"),
+                            ("Australia/Lindeman", "Lindeman"),
+                            ("Australia/Lord_Howe", "Lord_Howe"),
+                            ("Australia/Melbourne", "Melbourne"),
+                            ("Australia/NSW", "NSW"),
+                            ("Australia/North", "North"),
+                            ("Australia/Perth", "Perth"),
+                            ("Australia/Queensland", "Queensland"),
+                            ("Australia/South", "South"),
+                            ("Australia/Sydney", "Sydney"),
+                            ("Australia/Tasmania", "Tasmania"),
+                            ("Australia/Victoria", "Victoria"),
+                            ("Australia/West", "West"),
+                            ("Australia/Yancowinna", "Yancowinna"),
+                        ],
+                    ),
+                    (
+                        "Brazil",
+                        [
+                            ("Brazil/Acre", "Acre"),
+                            ("Brazil/DeNoronha", "DeNoronha"),
+                            ("Brazil/East", "East"),
+                            ("Brazil/West", "West"),
+                        ],
+                    ),
+                    (
+                        "Canada",
+                        [
+                            ("Canada/Atlantic", "Atlantic"),
+                            ("Canada/Central", "Central"),
+                            ("Canada/Eastern", "Eastern"),
+                            ("Canada/Mountain", "Mountain"),
+                            ("Canada/Newfoundland", "Newfoundland"),
+                            ("Canada/Pacific", "Pacific"),
+                            ("Canada/Saskatchewan", "Saskatchewan"),
+                            ("Canada/Yukon", "Yukon"),
+                        ],
+                    ),
+                    (
+                        "Chile",
+                        [
+                            ("Chile/Continental", "Continental"),
+                            ("Chile/EasterIsland", "EasterIsland"),
+                        ],
+                    ),
+                    (
+                        "Etc",
+                        [
+                            ("Etc/Greenwich", "Greenwich"),
+                            ("Etc/UCT", "UCT"),
+                            ("Etc/UTC", "UTC"),
+                            ("Etc/Universal", "Universal"),
+                            ("Etc/Zulu", "Zulu"),
+                        ],
+                    ),
+                    (
+                        "Europe",
+                        [
+                            ("Europe/Amsterdam", "Amsterdam"),
+                            ("Europe/Andorra", "Andorra"),
+                            ("Europe/Astrakhan", "Astrakhan"),
+                            ("Europe/Athens", "Athens"),
+                            ("Europe/Belfast", "Belfast"),
+                            ("Europe/Belgrade", "Belgrade"),
+                            ("Europe/Berlin", "Berlin"),
+                            ("Europe/Bratislava", "Bratislava"),
+                            ("Europe/Brussels", "Brussels"),
+                            ("Europe/Bucharest", "Bucharest"),
+                            ("Europe/Budapest", "Budapest"),
+                            ("Europe/Busingen", "Busingen"),
+                            ("Europe/Chisinau", "Chisinau"),
+                            ("Europe/Copenhagen", "Copenhagen"),
+                            ("Europe/Dublin", "Dublin"),
+                            ("Europe/Gibraltar", "Gibraltar"),
+                            ("Europe/Guernsey", "Guernsey"),
+                            ("Europe/Helsinki", "Helsinki"),
+                            ("Europe/Isle_of_Man", "Isle_of_Man"),
+                            ("Europe/Istanbul", "Istanbul"),
+                            ("Europe/Jersey", "Jersey"),
+                            ("Europe/Kaliningrad", "Kaliningrad"),
+                            ("Europe/Kiev", "Kiev"),
+                            ("Europe/Kirov", "Kirov"),
+                            ("Europe/Kyiv", "Kyiv"),
+                            ("Europe/Lisbon", "Lisbon"),
+                            ("Europe/Ljubljana", "Ljubljana"),
+                            ("Europe/London", "London"),
+                            ("Europe/Luxembourg", "Luxembourg"),
+                            ("Europe/Madrid", "Madrid"),
+                            ("Europe/Malta", "Malta"),
+                            ("Europe/Mariehamn", "Mariehamn"),
+                            ("Europe/Minsk", "Minsk"),
+                            ("Europe/Monaco", "Monaco"),
+                            ("Europe/Moscow", "Moscow"),
+                            ("Europe/Nicosia", "Nicosia"),
+                            ("Europe/Oslo", "Oslo"),
+                            ("Europe/Paris", "Paris"),
+                            ("Europe/Podgorica", "Podgorica"),
+                            ("Europe/Prague", "Prague"),
+                            ("Europe/Riga", "Riga"),
+                            ("Europe/Rome", "Rome"),
+                            ("Europe/Samara", "Samara"),
+                            ("Europe/San_Marino", "San_Marino"),
+                            ("Europe/Sarajevo", "Sarajevo"),
+                            ("Europe/Saratov", "Saratov"),
+                            ("Europe/Simferopol", "Simferopol"),
+                            ("Europe/Skopje", "Skopje"),
+                            ("Europe/Sofia", "Sofia"),
+                            ("Europe/Stockholm", "Stockholm"),
+                            ("Europe/Tallinn", "Tallinn"),
+                            ("Europe/Tirane", "Tirane"),
+                            ("Europe/Tiraspol", "Tiraspol"),
+                            ("Europe/Ulyanovsk", "Ulyanovsk"),
+                            ("Europe/Uzhgorod", "Uzhgorod"),
+                            ("Europe/Vaduz", "Vaduz"),
+                            ("Europe/Vatican", "Vatican"),
+                            ("Europe/Vienna", "Vienna"),
+                            ("Europe/Vilnius", "Vilnius"),
+                            ("Europe/Volgograd", "Volgograd"),
+                            ("Europe/Warsaw", "Warsaw"),
+                            ("Europe/Zagreb", "Zagreb"),
+                            ("Europe/Zaporozhye", "Zaporozhye"),
+                            ("Europe/Zurich", "Zurich"),
+                        ],
+                    ),
+                    (
+                        "Indian",
+                        [
+                            ("Indian/Antananarivo", "Antananarivo"),
+                            ("Indian/Chagos", "Chagos"),
+                            ("Indian/Christmas", "Christmas"),
+                            ("Indian/Cocos", "Cocos"),
+                            ("Indian/Comoro", "Comoro"),
+                            ("Indian/Kerguelen", "Kerguelen"),
+                            ("Indian/Mahe", "Mahe"),
+                            ("Indian/Maldives", "Maldives"),
+                            ("Indian/Mauritius", "Mauritius"),
+                            ("Indian/Mayotte", "Mayotte"),
+                            ("Indian/Reunion", "Reunion"),
+                        ],
+                    ),
+                    (
+                        "Mexico",
+                        [
+                            ("Mexico/BajaNorte", "BajaNorte"),
+                            ("Mexico/BajaSur", "BajaSur"),
+                            ("Mexico/General", "General"),
+                        ],
+                    ),
+                    (
+                        "Other",
+                        [
+                            ("CET", "CET"),
+                            ("CST6CDT", "CST6CDT"),
+                            ("Cuba", "Cuba"),
+                            ("EET", "EET"),
+                            ("EST", "EST"),
+                            ("EST5EDT", "EST5EDT"),
+                            ("Egypt", "Egypt"),
+                            ("Eire", "Eire"),
+                            ("GB", "GB"),
+                            ("GB-Eire", "GB-Eire"),
+                            ("Greenwich", "Greenwich"),
+                            ("HST", "HST"),
+                            ("Hongkong", "Hongkong"),
+                            ("Iceland", "Iceland"),
+                            ("Iran", "Iran"),
+                            ("Israel", "Israel"),
+                            ("Jamaica", "Jamaica"),
+                            ("Japan", "Japan"),
+                            ("Kwajalein", "Kwajalein"),
+                            ("Libya", "Libya"),
+                            ("MET", "MET"),
+                            ("MST", "MST"),
+                            ("MST7MDT", "MST7MDT"),
+                            ("NZ", "NZ"),
+                            ("NZ-CHAT", "NZ-CHAT"),
+                            ("Navajo", "Navajo"),
+                            ("PRC", "PRC"),
+                            ("PST8PDT", "PST8PDT"),
+                            ("Poland", "Poland"),
+                            ("Portugal", "Portugal"),
+                            ("ROC", "ROC"),
+                            ("ROK", "ROK"),
+                            ("Singapore", "Singapore"),
+                            ("Turkey", "Turkey"),
+                            ("UCT", "UCT"),
+                            ("UTC", "UTC"),
+                            ("Universal", "Universal"),
+                            ("W-SU", "W-SU"),
+                            ("WET", "WET"),
+                            ("Zulu", "Zulu"),
+                        ],
+                    ),
+                    (
+                        "Pacific",
+                        [
+                            ("Pacific/Apia", "Apia"),
+                            ("Pacific/Auckland", "Auckland"),
+                            ("Pacific/Bougainville", "Bougainville"),
+                            ("Pacific/Chatham", "Chatham"),
+                            ("Pacific/Chuuk", "Chuuk"),
+                            ("Pacific/Easter", "Easter"),
+                            ("Pacific/Efate", "Efate"),
+                            ("Pacific/Enderbury", "Enderbury"),
+                            ("Pacific/Fakaofo", "Fakaofo"),
+                            ("Pacific/Fiji", "Fiji"),
+                            ("Pacific/Funafuti", "Funafuti"),
+                            ("Pacific/Galapagos", "Galapagos"),
+                            ("Pacific/Gambier", "Gambier"),
+                            ("Pacific/Guadalcanal", "Guadalcanal"),
+                            ("Pacific/Guam", "Guam"),
+                            ("Pacific/Honolulu", "Honolulu"),
+                            ("Pacific/Johnston", "Johnston"),
+                            ("Pacific/Kanton", "Kanton"),
+                            ("Pacific/Kiritimati", "Kiritimati"),
+                            ("Pacific/Kosrae", "Kosrae"),
+                            ("Pacific/Kwajalein", "Kwajalein"),
+                            ("Pacific/Majuro", "Majuro"),
+                            ("Pacific/Marquesas", "Marquesas"),
+                            ("Pacific/Midway", "Midway"),
+                            ("Pacific/Nauru", "Nauru"),
+                            ("Pacific/Niue", "Niue"),
+                            ("Pacific/Norfolk", "Norfolk"),
+                            ("Pacific/Noumea", "Noumea"),
+                            ("Pacific/Pago_Pago", "Pago_Pago"),
+                            ("Pacific/Palau", "Palau"),
+                            ("Pacific/Pitcairn", "Pitcairn"),
+                            ("Pacific/Pohnpei", "Pohnpei"),
+                            ("Pacific/Ponape", "Ponape"),
+                            ("Pacific/Port_Moresby", "Port_Moresby"),
+                            ("Pacific/Rarotonga", "Rarotonga"),
+                            ("Pacific/Saipan", "Saipan"),
+                            ("Pacific/Samoa", "Samoa"),
+                            ("Pacific/Tahiti", "Tahiti"),
+                            ("Pacific/Tarawa", "Tarawa"),
+                            ("Pacific/Tongatapu", "Tongatapu"),
+                            ("Pacific/Truk", "Truk"),
+                            ("Pacific/Wake", "Wake"),
+                            ("Pacific/Wallis", "Wallis"),
+                            ("Pacific/Yap", "Yap"),
+                        ],
+                    ),
+                    (
+                        "US",
+                        [
+                            ("US/Alaska", "Alaska"),
+                            ("US/Aleutian", "Aleutian"),
+                            ("US/Arizona", "Arizona"),
+                            ("US/Central", "Central"),
+                            ("US/East-Indiana", "East-Indiana"),
+                            ("US/Eastern", "Eastern"),
+                            ("US/Hawaii", "Hawaii"),
+                            ("US/Indiana-Starke", "Indiana-Starke"),
+                            ("US/Michigan", "Michigan"),
+                            ("US/Mountain", "Mountain"),
+                            ("US/Pacific", "Pacific"),
+                            ("US/Samoa", "Samoa"),
+                        ],
+                    ),
+                ],
+                default="Asia/Ho_Chi_Minh",
+                max_length=50,
+                verbose_name="location",
+            ),
+        ),
+    ]

judge/migrations/0150_alter_profile_timezone.py

@@ -0,0 +1,676 @@
+# Generated by Django 3.2.17 on 2023-02-08 01:06
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0149_auto_20230202_0902"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="profile",
+            name="timezone",
+            field=models.CharField(
+                choices=[
+                    (
+                        "Africa",
+                        [
+                            ("Africa/Abidjan", "Abidjan"),
+                            ("Africa/Accra", "Accra"),
+                            ("Africa/Addis_Ababa", "Addis_Ababa"),
+                            ("Africa/Algiers", "Algiers"),
+                            ("Africa/Asmara", "Asmara"),
+                            ("Africa/Asmera", "Asmera"),
+                            ("Africa/Bamako", "Bamako"),
+                            ("Africa/Bangui", "Bangui"),
+                            ("Africa/Banjul", "Banjul"),
+                            ("Africa/Bissau", "Bissau"),
+                            ("Africa/Blantyre", "Blantyre"),
+                            ("Africa/Brazzaville", "Brazzaville"),
+                            ("Africa/Bujumbura", "Bujumbura"),
+                            ("Africa/Cairo", "Cairo"),
+                            ("Africa/Casablanca", "Casablanca"),
+                            ("Africa/Ceuta", "Ceuta"),
+                            ("Africa/Conakry", "Conakry"),
+                            ("Africa/Dakar", "Dakar"),
+                            ("Africa/Dar_es_Salaam", "Dar_es_Salaam"),
+                            ("Africa/Djibouti", "Djibouti"),
+                            ("Africa/Douala", "Douala"),
+                            ("Africa/El_Aaiun", "El_Aaiun"),
+                            ("Africa/Freetown", "Freetown"),
+                            ("Africa/Gaborone", "Gaborone"),
+                            ("Africa/Harare", "Harare"),
+                            ("Africa/Johannesburg", "Johannesburg"),
+                            ("Africa/Juba", "Juba"),
+                            ("Africa/Kampala", "Kampala"),
+                            ("Africa/Khartoum", "Khartoum"),
+                            ("Africa/Kigali", "Kigali"),
+                            ("Africa/Kinshasa", "Kinshasa"),
+                            ("Africa/Lagos", "Lagos"),
+                            ("Africa/Libreville", "Libreville"),
+                            ("Africa/Lome", "Lome"),
+                            ("Africa/Luanda", "Luanda"),
+                            ("Africa/Lubumbashi", "Lubumbashi"),
+                            ("Africa/Lusaka", "Lusaka"),
+                            ("Africa/Malabo", "Malabo"),
+                            ("Africa/Maputo", "Maputo"),
+                            ("Africa/Maseru", "Maseru"),
+                            ("Africa/Mbabane", "Mbabane"),
+                            ("Africa/Mogadishu", "Mogadishu"),
+                            ("Africa/Monrovia", "Monrovia"),
+                            ("Africa/Nairobi", "Nairobi"),
+                            ("Africa/Ndjamena", "Ndjamena"),
+                            ("Africa/Niamey", "Niamey"),
+                            ("Africa/Nouakchott", "Nouakchott"),
+                            ("Africa/Ouagadougou", "Ouagadougou"),
+                            ("Africa/Porto-Novo", "Porto-Novo"),
+                            ("Africa/Sao_Tome", "Sao_Tome"),
+                            ("Africa/Timbuktu", "Timbuktu"),
+                            ("Africa/Tripoli", "Tripoli"),
+                            ("Africa/Tunis", "Tunis"),
+                            ("Africa/Windhoek", "Windhoek"),
+                        ],
+                    ),
+                    (
+                        "America",
+                        [
+                            ("America/Adak", "Adak"),
+                            ("America/Anchorage", "Anchorage"),
+                            ("America/Anguilla", "Anguilla"),
+                            ("America/Antigua", "Antigua"),
+                            ("America/Araguaina", "Araguaina"),
+                            (
+                                "America/Argentina/Buenos_Aires",
+                                "Argentina/Buenos_Aires",
+                            ),
+                            ("America/Argentina/Catamarca", "Argentina/Catamarca"),
+                            (
+                                "America/Argentina/ComodRivadavia",
+                                "Argentina/ComodRivadavia",
+                            ),
+                            ("America/Argentina/Cordoba", "Argentina/Cordoba"),
+                            ("America/Argentina/Jujuy", "Argentina/Jujuy"),
+                            ("America/Argentina/La_Rioja", "Argentina/La_Rioja"),
+                            ("America/Argentina/Mendoza", "Argentina/Mendoza"),
+                            (
+                                "America/Argentina/Rio_Gallegos",
+                                "Argentina/Rio_Gallegos",
+                            ),
+                            ("America/Argentina/Salta", "Argentina/Salta"),
+                            ("America/Argentina/San_Juan", "Argentina/San_Juan"),
+                            ("America/Argentina/San_Luis", "Argentina/San_Luis"),
+                            ("America/Argentina/Tucuman", "Argentina/Tucuman"),
+                            ("America/Argentina/Ushuaia", "Argentina/Ushuaia"),
+                            ("America/Aruba", "Aruba"),
+                            ("America/Asuncion", "Asuncion"),
+                            ("America/Atikokan", "Atikokan"),
+                            ("America/Atka", "Atka"),
+                            ("America/Bahia", "Bahia"),
+                            ("America/Bahia_Banderas", "Bahia_Banderas"),
+                            ("America/Barbados", "Barbados"),
+                            ("America/Belem", "Belem"),
+                            ("America/Belize", "Belize"),
+                            ("America/Blanc-Sablon", "Blanc-Sablon"),
+                            ("America/Boa_Vista", "Boa_Vista"),
+                            ("America/Bogota", "Bogota"),
+                            ("America/Boise", "Boise"),
+                            ("America/Buenos_Aires", "Buenos_Aires"),
+                            ("America/Cambridge_Bay", "Cambridge_Bay"),
+                            ("America/Campo_Grande", "Campo_Grande"),
+                            ("America/Cancun", "Cancun"),
+                            ("America/Caracas", "Caracas"),
+                            ("America/Catamarca", "Catamarca"),
+                            ("America/Cayenne", "Cayenne"),
+                            ("America/Cayman", "Cayman"),
+                            ("America/Chicago", "Chicago"),
+                            ("America/Chihuahua", "Chihuahua"),
+                            ("America/Coral_Harbour", "Coral_Harbour"),
+                            ("America/Cordoba", "Cordoba"),
+                            ("America/Costa_Rica", "Costa_Rica"),
+                            ("America/Creston", "Creston"),
+                            ("America/Cuiaba", "Cuiaba"),
+                            ("America/Curacao", "Curacao"),
+                            ("America/Danmarkshavn", "Danmarkshavn"),
+                            ("America/Dawson", "Dawson"),
+                            ("America/Dawson_Creek", "Dawson_Creek"),
+                            ("America/Denver", "Denver"),
+                            ("America/Detroit", "Detroit"),
+                            ("America/Dominica", "Dominica"),
+                            ("America/Edmonton", "Edmonton"),
+                            ("America/Eirunepe", "Eirunepe"),
+                            ("America/El_Salvador", "El_Salvador"),
+                            ("America/Ensenada", "Ensenada"),
+                            ("America/Fort_Nelson", "Fort_Nelson"),
+                            ("America/Fort_Wayne", "Fort_Wayne"),
+                            ("America/Fortaleza", "Fortaleza"),
+                            ("America/Glace_Bay", "Glace_Bay"),
+                            ("America/Godthab", "Godthab"),
+                            ("America/Goose_Bay", "Goose_Bay"),
+                            ("America/Grand_Turk", "Grand_Turk"),
+                            ("America/Grenada", "Grenada"),
+                            ("America/Guadeloupe", "Guadeloupe"),
+                            ("America/Guatemala", "Guatemala"),
+                            ("America/Guayaquil", "Guayaquil"),
+                            ("America/Guyana", "Guyana"),
+                            ("America/Halifax", "Halifax"),
+                            ("America/Havana", "Havana"),
+                            ("America/Hermosillo", "Hermosillo"),
+                            ("America/Indiana/Indianapolis", "Indiana/Indianapolis"),
+                            ("America/Indiana/Knox", "Indiana/Knox"),
+                            ("America/Indiana/Marengo", "Indiana/Marengo"),
+                            ("America/Indiana/Petersburg", "Indiana/Petersburg"),
+                            ("America/Indiana/Tell_City", "Indiana/Tell_City"),
+                            ("America/Indiana/Vevay", "Indiana/Vevay"),
+                            ("America/Indiana/Vincennes", "Indiana/Vincennes"),
+                            ("America/Indiana/Winamac", "Indiana/Winamac"),
+                            ("America/Indianapolis", "Indianapolis"),
+                            ("America/Inuvik", "Inuvik"),
+                            ("America/Iqaluit", "Iqaluit"),
+                            ("America/Jamaica", "Jamaica"),
+                            ("America/Jujuy", "Jujuy"),
+                            ("America/Juneau", "Juneau"),
+                            ("America/Kentucky/Louisville", "Kentucky/Louisville"),
+                            ("America/Kentucky/Monticello", "Kentucky/Monticello"),
+                            ("America/Knox_IN", "Knox_IN"),
+                            ("America/Kralendijk", "Kralendijk"),
+                            ("America/La_Paz", "La_Paz"),
+                            ("America/Lima", "Lima"),
+                            ("America/Los_Angeles", "Los_Angeles"),
+                            ("America/Louisville", "Louisville"),
+                            ("America/Lower_Princes", "Lower_Princes"),
+                            ("America/Maceio", "Maceio"),
+                            ("America/Managua", "Managua"),
+                            ("America/Manaus", "Manaus"),
+                            ("America/Marigot", "Marigot"),
+                            ("America/Martinique", "Martinique"),
+                            ("America/Matamoros", "Matamoros"),
+                            ("America/Mazatlan", "Mazatlan"),
+                            ("America/Mendoza", "Mendoza"),
+                            ("America/Menominee", "Menominee"),
+                            ("America/Merida", "Merida"),
+                            ("America/Metlakatla", "Metlakatla"),
+                            ("America/Mexico_City", "Mexico_City"),
+                            ("America/Miquelon", "Miquelon"),
+                            ("America/Moncton", "Moncton"),
+                            ("America/Monterrey", "Monterrey"),
+                            ("America/Montevideo", "Montevideo"),
+                            ("America/Montreal", "Montreal"),
+                            ("America/Montserrat", "Montserrat"),
+                            ("America/Nassau", "Nassau"),
+                            ("America/New_York", "New_York"),
+                            ("America/Nipigon", "Nipigon"),
+                            ("America/Nome", "Nome"),
+                            ("America/Noronha", "Noronha"),
+                            ("America/North_Dakota/Beulah", "North_Dakota/Beulah"),
+                            ("America/North_Dakota/Center", "North_Dakota/Center"),
+                            (
+                                "America/North_Dakota/New_Salem",
+                                "North_Dakota/New_Salem",
+                            ),
+                            ("America/Nuuk", "Nuuk"),
+                            ("America/Ojinaga", "Ojinaga"),
+                            ("America/Panama", "Panama"),
+                            ("America/Pangnirtung", "Pangnirtung"),
+                            ("America/Paramaribo", "Paramaribo"),
+                            ("America/Phoenix", "Phoenix"),
+                            ("America/Port-au-Prince", "Port-au-Prince"),
+                            ("America/Port_of_Spain", "Port_of_Spain"),
+                            ("America/Porto_Acre", "Porto_Acre"),
+                            ("America/Porto_Velho", "Porto_Velho"),
+                            ("America/Puerto_Rico", "Puerto_Rico"),
+                            ("America/Punta_Arenas", "Punta_Arenas"),
+                            ("America/Rainy_River", "Rainy_River"),
+                            ("America/Rankin_Inlet", "Rankin_Inlet"),
+                            ("America/Recife", "Recife"),
+                            ("America/Regina", "Regina"),
+                            ("America/Resolute", "Resolute"),
+                            ("America/Rio_Branco", "Rio_Branco"),
+                            ("America/Rosario", "Rosario"),
+                            ("America/Santa_Isabel", "Santa_Isabel"),
+                            ("America/Santarem", "Santarem"),
+                            ("America/Santiago", "Santiago"),
+                            ("America/Santo_Domingo", "Santo_Domingo"),
+                            ("America/Sao_Paulo", "Sao_Paulo"),
+                            ("America/Scoresbysund", "Scoresbysund"),
+                            ("America/Shiprock", "Shiprock"),
+                            ("America/Sitka", "Sitka"),
+                            ("America/St_Barthelemy", "St_Barthelemy"),
+                            ("America/St_Johns", "St_Johns"),
+                            ("America/St_Kitts", "St_Kitts"),
+                            ("America/St_Lucia", "St_Lucia"),
+                            ("America/St_Thomas", "St_Thomas"),
+                            ("America/St_Vincent", "St_Vincent"),
+                            ("America/Swift_Current", "Swift_Current"),
+                            ("America/Tegucigalpa", "Tegucigalpa"),
+                            ("America/Thule", "Thule"),
+                            ("America/Thunder_Bay", "Thunder_Bay"),
+                            ("America/Tijuana", "Tijuana"),
+                            ("America/Toronto", "Toronto"),
+                            ("America/Tortola", "Tortola"),
+                            ("America/Vancouver", "Vancouver"),
+                            ("America/Virgin", "Virgin"),
+                            ("America/Whitehorse", "Whitehorse"),
+                            ("America/Winnipeg", "Winnipeg"),
+                            ("America/Yakutat", "Yakutat"),
+                            ("America/Yellowknife", "Yellowknife"),
+                        ],
+                    ),
+                    (
+                        "Antarctica",
+                        [
+                            ("Antarctica/Casey", "Casey"),
+                            ("Antarctica/Davis", "Davis"),
+                            ("Antarctica/DumontDUrville", "DumontDUrville"),
+                            ("Antarctica/Macquarie", "Macquarie"),
+                            ("Antarctica/Mawson", "Mawson"),
+                            ("Antarctica/McMurdo", "McMurdo"),
+                            ("Antarctica/Palmer", "Palmer"),
+                            ("Antarctica/Rothera", "Rothera"),
+                            ("Antarctica/South_Pole", "South_Pole"),
+                            ("Antarctica/Syowa", "Syowa"),
+                            ("Antarctica/Troll", "Troll"),
+                            ("Antarctica/Vostok", "Vostok"),
+                        ],
+                    ),
+                    ("Arctic", [("Arctic/Longyearbyen", "Longyearbyen")]),
+                    (
+                        "Asia",
+                        [
+                            ("Asia/Aden", "Aden"),
+                            ("Asia/Almaty", "Almaty"),
+                            ("Asia/Amman", "Amman"),
+                            ("Asia/Anadyr", "Anadyr"),
+                            ("Asia/Aqtau", "Aqtau"),
+                            ("Asia/Aqtobe", "Aqtobe"),
+                            ("Asia/Ashgabat", "Ashgabat"),
+                            ("Asia/Ashkhabad", "Ashkhabad"),
+                            ("Asia/Atyrau", "Atyrau"),
+                            ("Asia/Baghdad", "Baghdad"),
+                            ("Asia/Bahrain", "Bahrain"),
+                            ("Asia/Baku", "Baku"),
+                            ("Asia/Bangkok", "Bangkok"),
+                            ("Asia/Barnaul", "Barnaul"),
+                            ("Asia/Beirut", "Beirut"),
+                            ("Asia/Bishkek", "Bishkek"),
+                            ("Asia/Brunei", "Brunei"),
+                            ("Asia/Calcutta", "Calcutta"),
+                            ("Asia/Chita", "Chita"),
+                            ("Asia/Choibalsan", "Choibalsan"),
+                            ("Asia/Chongqing", "Chongqing"),
+                            ("Asia/Chungking", "Chungking"),
+                            ("Asia/Colombo", "Colombo"),
+                            ("Asia/Dacca", "Dacca"),
+                            ("Asia/Damascus", "Damascus"),
+                            ("Asia/Dhaka", "Dhaka"),
+                            ("Asia/Dili", "Dili"),
+                            ("Asia/Dubai", "Dubai"),
+                            ("Asia/Dushanbe", "Dushanbe"),
+                            ("Asia/Famagusta", "Famagusta"),
+                            ("Asia/Gaza", "Gaza"),
+                            ("Asia/Harbin", "Harbin"),
+                            ("Asia/Hebron", "Hebron"),
+                            ("Asia/Ho_Chi_Minh", "Ho_Chi_Minh"),
+                            ("Asia/Hong_Kong", "Hong_Kong"),
+                            ("Asia/Hovd", "Hovd"),
+                            ("Asia/Irkutsk", "Irkutsk"),
+                            ("Asia/Istanbul", "Istanbul"),
+                            ("Asia/Jakarta", "Jakarta"),
+                            ("Asia/Jayapura", "Jayapura"),
+                            ("Asia/Jerusalem", "Jerusalem"),
+                            ("Asia/Kabul", "Kabul"),
+                            ("Asia/Kamchatka", "Kamchatka"),
+                            ("Asia/Karachi", "Karachi"),
+                            ("Asia/Kashgar", "Kashgar"),
+                            ("Asia/Kathmandu", "Kathmandu"),
+                            ("Asia/Katmandu", "Katmandu"),
+                            ("Asia/Khandyga", "Khandyga"),
+                            ("Asia/Kolkata", "Kolkata"),
+                            ("Asia/Krasnoyarsk", "Krasnoyarsk"),
+                            ("Asia/Kuala_Lumpur", "Kuala_Lumpur"),
+                            ("Asia/Kuching", "Kuching"),
+                            ("Asia/Kuwait", "Kuwait"),
+                            ("Asia/Macao", "Macao"),
+                            ("Asia/Macau", "Macau"),
+                            ("Asia/Magadan", "Magadan"),
+                            ("Asia/Makassar", "Makassar"),
+                            ("Asia/Manila", "Manila"),
+                            ("Asia/Muscat", "Muscat"),
+                            ("Asia/Nicosia", "Nicosia"),
+                            ("Asia/Novokuznetsk", "Novokuznetsk"),
+                            ("Asia/Novosibirsk", "Novosibirsk"),
+                            ("Asia/Omsk", "Omsk"),
+                            ("Asia/Oral", "Oral"),
+                            ("Asia/Phnom_Penh", "Phnom_Penh"),
+                            ("Asia/Pontianak", "Pontianak"),
+                            ("Asia/Pyongyang", "Pyongyang"),
+                            ("Asia/Qatar", "Qatar"),
+                            ("Asia/Qostanay", "Qostanay"),
+                            ("Asia/Qyzylorda", "Qyzylorda"),
+                            ("Asia/Rangoon", "Rangoon"),
+                            ("Asia/Riyadh", "Riyadh"),
+                            ("Asia/Saigon", "Saigon"),
+                            ("Asia/Sakhalin", "Sakhalin"),
+                            ("Asia/Samarkand", "Samarkand"),
+                            ("Asia/Seoul", "Seoul"),
+                            ("Asia/Shanghai", "Shanghai"),
+                            ("Asia/Singapore", "Singapore"),
+                            ("Asia/Srednekolymsk", "Srednekolymsk"),
+                            ("Asia/Taipei", "Taipei"),
+                            ("Asia/Tashkent", "Tashkent"),
+                            ("Asia/Tbilisi", "Tbilisi"),
+                            ("Asia/Tehran", "Tehran"),
+                            ("Asia/Tel_Aviv", "Tel_Aviv"),
+                            ("Asia/Thimbu", "Thimbu"),
+                            ("Asia/Thimphu", "Thimphu"),
+                            ("Asia/Tokyo", "Tokyo"),
+                            ("Asia/Tomsk", "Tomsk"),
+                            ("Asia/Ujung_Pandang", "Ujung_Pandang"),
+                            ("Asia/Ulaanbaatar", "Ulaanbaatar"),
+                            ("Asia/Ulan_Bator", "Ulan_Bator"),
+                            ("Asia/Urumqi", "Urumqi"),
+                            ("Asia/Ust-Nera", "Ust-Nera"),
+                            ("Asia/Vientiane", "Vientiane"),
+                            ("Asia/Vladivostok", "Vladivostok"),
+                            ("Asia/Yakutsk", "Yakutsk"),
+                            ("Asia/Yangon", "Yangon"),
+                            ("Asia/Yekaterinburg", "Yekaterinburg"),
+                            ("Asia/Yerevan", "Yerevan"),
+                        ],
+                    ),
+                    (
+                        "Atlantic",
+                        [
+                            ("Atlantic/Azores", "Azores"),
+                            ("Atlantic/Bermuda", "Bermuda"),
+                            ("Atlantic/Canary", "Canary"),
+                            ("Atlantic/Cape_Verde", "Cape_Verde"),
+                            ("Atlantic/Faeroe", "Faeroe"),
+                            ("Atlantic/Faroe", "Faroe"),
+                            ("Atlantic/Jan_Mayen", "Jan_Mayen"),
+                            ("Atlantic/Madeira", "Madeira"),
+                            ("Atlantic/Reykjavik", "Reykjavik"),
+                            ("Atlantic/South_Georgia", "South_Georgia"),
+                            ("Atlantic/St_Helena", "St_Helena"),
+                            ("Atlantic/Stanley", "Stanley"),
+                        ],
+                    ),
+                    (
+                        "Australia",
+                        [
+                            ("Australia/ACT", "ACT"),
+                            ("Australia/Adelaide", "Adelaide"),
+                            ("Australia/Brisbane", "Brisbane"),
+                            ("Australia/Broken_Hill", "Broken_Hill"),
+                            ("Australia/Canberra", "Canberra"),
+                            ("Australia/Currie", "Currie"),
+                            ("Australia/Darwin", "Darwin"),
+                            ("Australia/Eucla", "Eucla"),
+                            ("Australia/Hobart", "Hobart"),
+                            ("Australia/LHI", "LHI"),
+                            ("Australia/Lindeman", "Lindeman"),
+                            ("Australia/Lord_Howe", "Lord_Howe"),
+                            ("Australia/Melbourne", "Melbourne"),
+                            ("Australia/NSW", "NSW"),
+                            ("Australia/North", "North"),
+                            ("Australia/Perth", "Perth"),
+                            ("Australia/Queensland", "Queensland"),
+                            ("Australia/South", "South"),
+                            ("Australia/Sydney", "Sydney"),
+                            ("Australia/Tasmania", "Tasmania"),
+                            ("Australia/Victoria", "Victoria"),
+                            ("Australia/West", "West"),
+                            ("Australia/Yancowinna", "Yancowinna"),
+                        ],
+                    ),
+                    (
+                        "Brazil",
+                        [
+                            ("Brazil/Acre", "Acre"),
+                            ("Brazil/DeNoronha", "DeNoronha"),
+                            ("Brazil/East", "East"),
+                            ("Brazil/West", "West"),
+                        ],
+                    ),
+                    (
+                        "Canada",
+                        [
+                            ("Canada/Atlantic", "Atlantic"),
+                            ("Canada/Central", "Central"),
+                            ("Canada/Eastern", "Eastern"),
+                            ("Canada/Mountain", "Mountain"),
+                            ("Canada/Newfoundland", "Newfoundland"),
+                            ("Canada/Pacific", "Pacific"),
+                            ("Canada/Saskatchewan", "Saskatchewan"),
+                            ("Canada/Yukon", "Yukon"),
+                        ],
+                    ),
+                    (
+                        "Chile",
+                        [
+                            ("Chile/Continental", "Continental"),
+                            ("Chile/EasterIsland", "EasterIsland"),
+                        ],
+                    ),
+                    (
+                        "Etc",
+                        [
+                            ("Etc/Greenwich", "Greenwich"),
+                            ("Etc/UCT", "UCT"),
+                            ("Etc/UTC", "UTC"),
+                            ("Etc/Universal", "Universal"),
+                            ("Etc/Zulu", "Zulu"),
+                        ],
+                    ),
+                    (
+                        "Europe",
+                        [
+                            ("Europe/Amsterdam", "Amsterdam"),
+                            ("Europe/Andorra", "Andorra"),
+                            ("Europe/Astrakhan", "Astrakhan"),
+                            ("Europe/Athens", "Athens"),
+                            ("Europe/Belfast", "Belfast"),
+                            ("Europe/Belgrade", "Belgrade"),
+                            ("Europe/Berlin", "Berlin"),
+                            ("Europe/Bratislava", "Bratislava"),
+                            ("Europe/Brussels", "Brussels"),
+                            ("Europe/Bucharest", "Bucharest"),
+                            ("Europe/Budapest", "Budapest"),
+                            ("Europe/Busingen", "Busingen"),
+                            ("Europe/Chisinau", "Chisinau"),
+                            ("Europe/Copenhagen", "Copenhagen"),
+                            ("Europe/Dublin", "Dublin"),
+                            ("Europe/Gibraltar", "Gibraltar"),
+                            ("Europe/Guernsey", "Guernsey"),
+                            ("Europe/Helsinki", "Helsinki"),
+                            ("Europe/Isle_of_Man", "Isle_of_Man"),
+                            ("Europe/Istanbul", "Istanbul"),
+                            ("Europe/Jersey", "Jersey"),
+                            ("Europe/Kaliningrad", "Kaliningrad"),
+                            ("Europe/Kiev", "Kiev"),
+                            ("Europe/Kirov", "Kirov"),
+                            ("Europe/Lisbon", "Lisbon"),
+                            ("Europe/Ljubljana", "Ljubljana"),
+                            ("Europe/London", "London"),
+                            ("Europe/Luxembourg", "Luxembourg"),
+                            ("Europe/Madrid", "Madrid"),
+                            ("Europe/Malta", "Malta"),
+                            ("Europe/Mariehamn", "Mariehamn"),
+                            ("Europe/Minsk", "Minsk"),
+                            ("Europe/Monaco", "Monaco"),
+                            ("Europe/Moscow", "Moscow"),
+                            ("Europe/Nicosia", "Nicosia"),
+                            ("Europe/Oslo", "Oslo"),
+                            ("Europe/Paris", "Paris"),
+                            ("Europe/Podgorica", "Podgorica"),
+                            ("Europe/Prague", "Prague"),
+                            ("Europe/Riga", "Riga"),
+                            ("Europe/Rome", "Rome"),
+                            ("Europe/Samara", "Samara"),
+                            ("Europe/San_Marino", "San_Marino"),
+                            ("Europe/Sarajevo", "Sarajevo"),
+                            ("Europe/Saratov", "Saratov"),
+                            ("Europe/Simferopol", "Simferopol"),
+                            ("Europe/Skopje", "Skopje"),
+                            ("Europe/Sofia", "Sofia"),
+                            ("Europe/Stockholm", "Stockholm"),
+                            ("Europe/Tallinn", "Tallinn"),
+                            ("Europe/Tirane", "Tirane"),
+                            ("Europe/Tiraspol", "Tiraspol"),
+                            ("Europe/Ulyanovsk", "Ulyanovsk"),
+                            ("Europe/Uzhgorod", "Uzhgorod"),
+                            ("Europe/Vaduz", "Vaduz"),
+                            ("Europe/Vatican", "Vatican"),
+                            ("Europe/Vienna", "Vienna"),
+                            ("Europe/Vilnius", "Vilnius"),
+                            ("Europe/Volgograd", "Volgograd"),
+                            ("Europe/Warsaw", "Warsaw"),
+                            ("Europe/Zagreb", "Zagreb"),
+                            ("Europe/Zaporozhye", "Zaporozhye"),
+                            ("Europe/Zurich", "Zurich"),
+                        ],
+                    ),
+                    (
+                        "Indian",
+                        [
+                            ("Indian/Antananarivo", "Antananarivo"),
+                            ("Indian/Chagos", "Chagos"),
+                            ("Indian/Christmas", "Christmas"),
+                            ("Indian/Cocos", "Cocos"),
+                            ("Indian/Comoro", "Comoro"),
+                            ("Indian/Kerguelen", "Kerguelen"),
+                            ("Indian/Mahe", "Mahe"),
+                            ("Indian/Maldives", "Maldives"),
+                            ("Indian/Mauritius", "Mauritius"),
+                            ("Indian/Mayotte", "Mayotte"),
+                            ("Indian/Reunion", "Reunion"),
+                        ],
+                    ),
+                    (
+                        "Mexico",
+                        [
+                            ("Mexico/BajaNorte", "BajaNorte"),
+                            ("Mexico/BajaSur", "BajaSur"),
+                            ("Mexico/General", "General"),
+                        ],
+                    ),
+                    (
+                        "Other",
+                        [
+                            ("CET", "CET"),
+                            ("CST6CDT", "CST6CDT"),
+                            ("Cuba", "Cuba"),
+                            ("EET", "EET"),
+                            ("EST", "EST"),
+                            ("EST5EDT", "EST5EDT"),
+                            ("Egypt", "Egypt"),
+                            ("Eire", "Eire"),
+                            ("GB", "GB"),
+                            ("GB-Eire", "GB-Eire"),
+                            ("Greenwich", "Greenwich"),
+                            ("HST", "HST"),
+                            ("Hongkong", "Hongkong"),
+                            ("Iceland", "Iceland"),
+                            ("Iran", "Iran"),
+                            ("Israel", "Israel"),
+                            ("Jamaica", "Jamaica"),
+                            ("Japan", "Japan"),
+                            ("Kwajalein", "Kwajalein"),
+                            ("Libya", "Libya"),
+                            ("MET", "MET"),
+                            ("MST", "MST"),
+                            ("MST7MDT", "MST7MDT"),
+                            ("NZ", "NZ"),
+                            ("NZ-CHAT", "NZ-CHAT"),
+                            ("Navajo", "Navajo"),
+                            ("PRC", "PRC"),
+                            ("PST8PDT", "PST8PDT"),
+                            ("Poland", "Poland"),
+                            ("Portugal", "Portugal"),
+                            ("ROC", "ROC"),
+                            ("ROK", "ROK"),
+                            ("Singapore", "Singapore"),
+                            ("Turkey", "Turkey"),
+                            ("UCT", "UCT"),
+                            ("UTC", "UTC"),
+                            ("Universal", "Universal"),
+                            ("W-SU", "W-SU"),
+                            ("WET", "WET"),
+                            ("Zulu", "Zulu"),
+                        ],
+                    ),
+                    (
+                        "Pacific",
+                        [
+                            ("Pacific/Apia", "Apia"),
+                            ("Pacific/Auckland", "Auckland"),
+                            ("Pacific/Bougainville", "Bougainville"),
+                            ("Pacific/Chatham", "Chatham"),
+                            ("Pacific/Chuuk", "Chuuk"),
+                            ("Pacific/Easter", "Easter"),
+                            ("Pacific/Efate", "Efate"),
+                            ("Pacific/Enderbury", "Enderbury"),
+                            ("Pacific/Fakaofo", "Fakaofo"),
+                            ("Pacific/Fiji", "Fiji"),
+                            ("Pacific/Funafuti", "Funafuti"),
+                            ("Pacific/Galapagos", "Galapagos"),
+                            ("Pacific/Gambier", "Gambier"),
+                            ("Pacific/Guadalcanal", "Guadalcanal"),
+                            ("Pacific/Guam", "Guam"),
+                            ("Pacific/Honolulu", "Honolulu"),
+                            ("Pacific/Johnston", "Johnston"),
+                            ("Pacific/Kanton", "Kanton"),
+                            ("Pacific/Kiritimati", "Kiritimati"),
+                            ("Pacific/Kosrae", "Kosrae"),
+                            ("Pacific/Kwajalein", "Kwajalein"),
+                            ("Pacific/Majuro", "Majuro"),
+                            ("Pacific/Marquesas", "Marquesas"),
+                            ("Pacific/Midway", "Midway"),
+                            ("Pacific/Nauru", "Nauru"),
+                            ("Pacific/Niue", "Niue"),
+                            ("Pacific/Norfolk", "Norfolk"),
+                            ("Pacific/Noumea", "Noumea"),
+                            ("Pacific/Pago_Pago", "Pago_Pago"),
+                            ("Pacific/Palau", "Palau"),
+                            ("Pacific/Pitcairn", "Pitcairn"),
+                            ("Pacific/Pohnpei", "Pohnpei"),
+                            ("Pacific/Ponape", "Ponape"),
+                            ("Pacific/Port_Moresby", "Port_Moresby"),
+                            ("Pacific/Rarotonga", "Rarotonga"),
+                            ("Pacific/Saipan", "Saipan"),
+                            ("Pacific/Samoa", "Samoa"),
+                            ("Pacific/Tahiti", "Tahiti"),
+                            ("Pacific/Tarawa", "Tarawa"),
+                            ("Pacific/Tongatapu", "Tongatapu"),
+                            ("Pacific/Truk", "Truk"),
+                            ("Pacific/Wake", "Wake"),
+                            ("Pacific/Wallis", "Wallis"),
+                            ("Pacific/Yap", "Yap"),
+                        ],
+                    ),
+                    (
+                        "US",
+                        [
+                            ("US/Alaska", "Alaska"),
+                            ("US/Aleutian", "Aleutian"),
+                            ("US/Arizona", "Arizona"),
+                            ("US/Central", "Central"),
+                            ("US/East-Indiana", "East-Indiana"),
+                            ("US/Eastern", "Eastern"),
+                            ("US/Hawaii", "Hawaii"),
+                            ("US/Indiana-Starke", "Indiana-Starke"),
+                            ("US/Michigan", "Michigan"),
+                            ("US/Mountain", "Mountain"),
+                            ("US/Pacific", "Pacific"),
+                            ("US/Samoa", "Samoa"),
+                        ],
+                    ),
+                ],
+                default="Asia/Ho_Chi_Minh",
+                max_length=50,
+                verbose_name="location",
+            ),
+        ),
+    ]

judge/migrations/0151_comment_content_type.py

@@ -0,0 +1,50 @@
+# Generated by Django 3.2.18 on 2023-02-20 21:26
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("judge", "0150_alter_profile_timezone"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="comment",
+            name="content_type",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                to="contenttypes.contenttype",
+            ),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="comment",
+            name="object_id",
+            field=models.PositiveIntegerField(null=True),
+            preserve_default=False,
+        ),
+        migrations.AlterField(
+            model_name="solution",
+            name="problem",
+            field=models.OneToOneField(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="solution",
+                to="judge.problem",
+                verbose_name="associated problem",
+            ),
+        ),
+        migrations.AddIndex(
+            model_name="comment",
+            index=models.Index(
+                fields=["content_type", "object_id"],
+                name="judge_comme_content_2dce05_idx",
+            ),
+        ),
+    ]

judge/migrations/0152_migrate_comments.py

@@ -0,0 +1,54 @@
+from django.db import migrations, models
+import django.db.models.deletion
+from django.core.exceptions import ObjectDoesNotExist
+
+
+def migrate_comments(apps, schema_editor):
+    Comment = apps.get_model("judge", "Comment")
+    Problem = apps.get_model("judge", "Problem")
+    Solution = apps.get_model("judge", "Solution")
+    BlogPost = apps.get_model("judge", "BlogPost")
+    Contest = apps.get_model("judge", "Contest")
+
+    for comment in Comment.objects.all():
+        page = comment.page
+        try:
+            if page.startswith("p:"):
+                code = page[2:]
+                comment.linked_object = Problem.objects.get(code=code)
+            elif page.startswith("s:"):
+                code = page[2:]
+                comment.linked_object = Solution.objects.get(problem__code=code)
+            elif page.startswith("c:"):
+                key = page[2:]
+                comment.linked_object = Contest.objects.get(key=key)
+            elif page.startswith("b:"):
+                blog_id = page[2:]
+                comment.linked_object = BlogPost.objects.get(id=blog_id)
+            comment.save()
+        except ObjectDoesNotExist:
+            comment.delete()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("judge", "0151_comment_content_type"),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_comments, migrations.RunPython.noop, atomic=True),
+        migrations.AlterField(
+            model_name="comment",
+            name="content_type",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                to="contenttypes.contenttype",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="comment",
+            name="object_id",
+            field=models.PositiveIntegerField(),
+        ),
+    ]

judge/migrations/0153_drop_comment_page.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.2.18 on 2023-02-20 23:46
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0152_migrate_comments"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="comment",
+            name="page",
+        ),
+        migrations.AlterField(
+            model_name="commentlock",
+            name="page",
+            field=models.CharField(
+                db_index=True, max_length=30, verbose_name="associated page"
+            ),
+        ),
+    ]

judge/migrations/0154_add_submission_indexes.py

@@ -0,0 +1,27 @@
+# Generated by Django 3.2.18 on 2023-03-08 01:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0153_drop_comment_page"),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name="submission",
+            index=models.Index(
+                fields=["problem", "user", "-points"],
+                name="judge_submi_problem_5687ea_idx",
+            ),
+        ),
+        migrations.AddIndex(
+            model_name="submission",
+            index=models.Index(
+                fields=["contest_object", "problem", "user", "-points"],
+                name="judge_submi_contest_31cdbb_idx",
+            ),
+        ),
+    ]

judge/migrations/0155_output_only.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.2.18 on 2023-03-10 04:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0154_add_submission_indexes"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="problemdata",
+            name="output_only",
+            field=models.BooleanField(
+                help_text="Support output-only problem",
+                null=True,
+                verbose_name="is output only",
+            ),
+        ),
+    ]

judge/migrations/0156_auto_20230801_0107.py

@@ -0,0 +1,48 @@
+# Generated by Django 3.2.18 on 2023-07-31 18:07
+
+import django.core.validators
+from django.db import migrations, models
+import judge.models.problem_data
+import judge.utils.problem_data
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0155_output_only"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="problemdata",
+            name="signature_handler",
+            field=models.FileField(
+                blank=True,
+                null=True,
+                storage=judge.utils.problem_data.ProblemDataStorage(),
+                upload_to=judge.models.problem_data.problem_directory_file,
+                validators=[
+                    django.core.validators.FileExtensionValidator(
+                        allowed_extensions=["cpp"]
+                    )
+                ],
+                verbose_name="signature handler",
+            ),
+        ),
+        migrations.AddField(
+            model_name="problemdata",
+            name="signature_header",
+            field=models.FileField(
+                blank=True,
+                null=True,
+                storage=judge.utils.problem_data.ProblemDataStorage(),
+                upload_to=judge.models.problem_data.problem_directory_file,
+                validators=[
+                    django.core.validators.FileExtensionValidator(
+                        allowed_extensions=["h"]
+                    )
+                ],
+                verbose_name="signature header",
+            ),
+        ),
+    ]

judge/migrations/0157_auto_20230801_1145.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.2.18 on 2023-08-01 04:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0156_auto_20230801_0107"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="problemdata",
+            name="use_ioi_signature",
+            field=models.BooleanField(
+                help_text="Use IOI Signature",
+                null=True,
+                verbose_name="is IOI signature",
+            ),
+        ),
+    ]

judge/migrations/0158_migrate_pagevote.py

@@ -0,0 +1,70 @@
+# Generated by Django 3.2.18 on 2023-08-03 07:40
+
+from django.db import migrations, models
+import django.db.models.deletion
+from django.core.exceptions import ObjectDoesNotExist
+
+
+def migrate_pagevote(apps, schema_editor):
+    PageVote = apps.get_model("judge", "PageVote")
+    Problem = apps.get_model("judge", "Problem")
+    Solution = apps.get_model("judge", "Solution")
+    BlogPost = apps.get_model("judge", "BlogPost")
+    Contest = apps.get_model("judge", "Contest")
+
+    for vote in PageVote.objects.all():
+        page = vote.page
+        try:
+            if page.startswith("p:"):
+                code = page[2:]
+                vote.linked_object = Problem.objects.get(code=code)
+            elif page.startswith("s:"):
+                code = page[2:]
+                vote.linked_object = Solution.objects.get(problem__code=code)
+            elif page.startswith("c:"):
+                key = page[2:]
+                vote.linked_object = Contest.objects.get(key=key)
+            elif page.startswith("b:"):
+                blog_id = page[2:]
+                vote.linked_object = BlogPost.objects.get(id=blog_id)
+            vote.save()
+        except ObjectDoesNotExist:
+            vote.delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("judge", "0157_auto_20230801_1145"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="pagevote",
+            name="content_type",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                to="contenttypes.contenttype",
+            ),
+        ),
+        migrations.AddField(
+            model_name="pagevote",
+            name="object_id",
+            field=models.PositiveIntegerField(default=None),
+            preserve_default=False,
+        ),
+        migrations.AlterUniqueTogether(
+            name="pagevote",
+            unique_together={("content_type", "object_id")},
+        ),
+        migrations.AddIndex(
+            model_name="pagevote",
+            index=models.Index(
+                fields=["content_type", "object_id"],
+                name="judge_pagev_content_ed8899_idx",
+            ),
+        ),
+        migrations.RunPython(migrate_pagevote, migrations.RunPython.noop, atomic=True),
+    ]

judge/migrations/0159_auto_20230803_1518.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.2.18 on 2023-08-03 08:18
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("judge", "0158_migrate_pagevote"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="pagevote",
+            name="content_type",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                to="contenttypes.contenttype",
+            ),
+        ),
+    ]

judge/migrations/0160_migrate_bookmark.py

@@ -0,0 +1,80 @@
+# Generated by Django 3.2.18 on 2023-08-03 08:32
+
+from django.db import migrations, models
+import django.db.models.deletion
+from django.core.exceptions import ObjectDoesNotExist
+
+
+def migrate_bookmark(apps, schema_editor):
+    BookMark = apps.get_model("judge", "BookMark")
+    Problem = apps.get_model("judge", "Problem")
+    Solution = apps.get_model("judge", "Solution")
+    BlogPost = apps.get_model("judge", "BlogPost")
+    Contest = apps.get_model("judge", "Contest")
+
+    for bookmark in BookMark.objects.all():
+        page = bookmark.page
+        try:
+            if page.startswith("p:"):
+                code = page[2:]
+                bookmark.linked_object = Problem.objects.get(code=code)
+            elif page.startswith("s:"):
+                code = page[2:]
+                bookmark.linked_object = Solution.objects.get(problem__code=code)
+            elif page.startswith("c:"):
+                key = page[2:]
+                bookmark.linked_object = Contest.objects.get(key=key)
+            elif page.startswith("b:"):
+                blog_id = page[2:]
+                bookmark.linked_object = BlogPost.objects.get(id=blog_id)
+            bookmark.save()
+        except ObjectDoesNotExist:
+            bookmark.delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("judge", "0159_auto_20230803_1518"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="bookmark",
+            name="content_type",
+            field=models.ForeignKey(
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                to="contenttypes.contenttype",
+            ),
+        ),
+        migrations.AddField(
+            model_name="bookmark",
+            name="object_id",
+            field=models.PositiveIntegerField(default=1),
+        ),
+        migrations.AddField(
+            model_name="bookmark",
+            name="score",
+            field=models.IntegerField(default=0, verbose_name="votes"),
+        ),
+        migrations.AlterUniqueTogether(
+            name="bookmark",
+            unique_together={("content_type", "object_id")},
+        ),
+        migrations.AddIndex(
+            model_name="bookmark",
+            index=models.Index(
+                fields=["content_type", "object_id"],
+                name="judge_bookm_content_964329_idx",
+            ),
+        ),
+        migrations.AddIndex(
+            model_name="makebookmark",
+            index=models.Index(
+                fields=["user", "bookmark"], name="judge_makeb_user_id_f0e226_idx"
+            ),
+        ),
+        migrations.RunPython(migrate_bookmark, migrations.RunPython.noop, atomic=True),
+    ]

judge/migrations/0161_auto_20230803_1536.py

@@ -0,0 +1,28 @@
+# Generated by Django 3.2.18 on 2023-08-03 08:36
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("contenttypes", "0002_remove_content_type_name"),
+        ("judge", "0160_migrate_bookmark"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="bookmark",
+            name="content_type",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                to="contenttypes.contenttype",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="bookmark",
+            name="object_id",
+            field=models.PositiveIntegerField(),
+        ),
+    ]

judge/migrations/0162_profile_image.py

@@ -0,0 +1,21 @@
+# Generated by Django 3.2.18 on 2023-08-24 00:50
+
+from django.db import migrations, models
+import judge.models.profile
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0161_auto_20230803_1536"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="profile",
+            name="profile_image",
+            field=models.ImageField(
+                null=True, upload_to=judge.models.profile.profile_image_path
+            ),
+        ),
+    ]

judge/migrations/0163_email_change.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.18 on 2023-08-25 00:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0162_profile_image"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="profile",
+            name="email_change_pending",
+            field=models.EmailField(blank=True, max_length=254, null=True),
+        ),
+    ]

judge/migrations/0164_show_testcase.py

@@ -0,0 +1,30 @@
+# Generated by Django 3.2.18 on 2023-08-25 23:03
+
+from django.db import migrations, models
+
+
+def migrate_show_testcases(apps, schema_editor):
+    ContestProblem = apps.get_model("judge", "ContestProblem")
+
+    for c in ContestProblem.objects.all():
+        if c.output_prefix_override == 1:
+            c.show_testcases = True
+            c.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0163_email_change"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="contestproblem",
+            name="show_testcases",
+            field=models.BooleanField(default=False, verbose_name="visible testcases"),
+        ),
+        migrations.RunPython(
+            migrate_show_testcases, migrations.RunPython.noop, atomic=True
+        ),
+    ]

judge/migrations/0165_drop_output_prefix_override.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.2.18 on 2023-08-25 23:11
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0164_show_testcase"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="contestproblem",
+            name="output_prefix_override",
+        ),
+    ]

judge/migrations/0166_display_rank_index.py

@@ -0,0 +1,28 @@
+# Generated by Django 3.2.18 on 2023-08-28 01:13
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0165_drop_output_prefix_override"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="profile",
+            name="display_rank",
+            field=models.CharField(
+                choices=[
+                    ("user", "Normal User"),
+                    ("setter", "Problem Setter"),
+                    ("admin", "Admin"),
+                ],
+                db_index=True,
+                default="user",
+                max_length=10,
+                verbose_name="display rank",
+            ),
+        ),
+    ]

judge/migrations/0167_ultimate_contest_format.py

@@ -0,0 +1,32 @@
+# Generated by Django 3.2.18 on 2023-09-01 00:09
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0166_display_rank_index"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="contest",
+            name="format_name",
+            field=models.CharField(
+                choices=[
+                    ("atcoder", "AtCoder"),
+                    ("default", "Default"),
+                    ("ecoo", "ECOO"),
+                    ("icpc", "ICPC"),
+                    ("ioi", "IOI"),
+                    ("ioi16", "New IOI"),
+                    ("ultimate", "Ultimate"),
+                ],
+                default="default",
+                help_text="The contest format module to use.",
+                max_length=32,
+                verbose_name="contest format",
+            ),
+        ),
+    ]

judge/migrations/0168_css_background.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.2.18 on 2023-09-02 00:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0167_ultimate_contest_format"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="profile",
+            name="css_background",
+            field=models.TextField(
+                blank=True,
+                help_text='CSS custom background properties: url("image_url"), color, etc',
+                max_length=300,
+                null=True,
+                verbose_name="Custom background",
+            ),
+        ),
+    ]

judge/migrations/0169_public_scoreboard.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.2.18 on 2023-09-17 01:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0168_css_background"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="contest",
+            name="public_scoreboard",
+            field=models.BooleanField(
+                default=False,
+                help_text="Ranking page is public even for private contests.",
+                verbose_name="public scoreboard",
+            ),
+        ),
+    ]

judge/migrations/0170_contests_summary.py

@@ -0,0 +1,30 @@
+# Generated by Django 3.2.21 on 2023-10-02 03:25
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0169_public_scoreboard"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ContestsSummary",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("scores", models.JSONField(blank=True, null=True)),
+                ("key", models.CharField(max_length=20, unique=True)),
+                ("contests", models.ManyToManyField(to="judge.Contest")),
+            ],
+        ),
+    ]

judge/migrations/0171_update_notification.py

@@ -0,0 +1,68 @@
+# Generated by Django 3.2.18 on 2023-10-10 21:17
+
+from django.db import migrations, models
+import django.db.models.deletion
+from django.urls import reverse
+
+from collections import defaultdict
+
+
+# Run this in shell
+def migrate_notif(apps, schema_editor):
+    Notification = apps.get_model("judge", "Notification")
+    Profile = apps.get_model("judge", "Profile")
+    NotificationProfile = apps.get_model("judge", "NotificationProfile")
+
+    unread_count = defaultdict(int)
+    for c in Notification.objects.all():
+        if c.comment:
+            c.html_link = (
+                f'<a href="{c.comment.get_absolute_url()}">{c.comment.page_title}</a>'
+            )
+            c.author = c.comment.author
+            c.save()
+        if c.read is False:
+            unread_count[c.author] += 1
+
+    for user in unread_count:
+        np = NotificationProfile(user=user)
+        np.unread_count = unread_count[user]
+        np.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0170_contests_summary"),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name="contestssummary",
+            options={
+                "verbose_name": "contests summary",
+                "verbose_name_plural": "contests summaries",
+            },
+        ),
+        migrations.CreateModel(
+            name="NotificationProfile",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("unread_count", models.IntegerField(default=0)),
+                (
+                    "user",
+                    models.OneToOneField(
+                        on_delete=django.db.models.deletion.CASCADE, to="judge.profile"
+                    ),
+                ),
+            ],
+        ),
+    ]

judge/migrations/0172_index_rating.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.18 on 2023-10-10 23:15
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0171_update_notification"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="profile",
+            name="rating",
+            field=models.IntegerField(db_index=True, default=None, null=True),
+        ),
+    ]

judge/migrations/0173_fulltext.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.2.18 on 2023-10-14 00:53
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0172_index_rating"),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            (
+                "CREATE FULLTEXT INDEX IF NOT EXISTS code_name_index ON judge_problem (code, name)",
+            ),
+            reverse_sql=migrations.RunSQL.noop,
+        ),
+        migrations.RunSQL(
+            (
+                "CREATE FULLTEXT INDEX IF NOT EXISTS key_name_index ON judge_contest (`key`, name)",
+            ),
+            reverse_sql=migrations.RunSQL.noop,
+        ),
+    ]

judge/migrations/0174_contest_summary_result.py

@@ -0,0 +1,50 @@
+# Generated by Django 3.2.18 on 2023-11-24 05:45
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0173_fulltext"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="contestssummary",
+            name="results",
+            field=models.JSONField(blank=True, null=True),
+        ),
+        migrations.AlterField(
+            model_name="contest",
+            name="authors",
+            field=models.ManyToManyField(
+                help_text="These users will be able to edit the contest.",
+                related_name="_judge_contest_authors_+",
+                to="judge.Profile",
+                verbose_name="authors",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="contest",
+            name="curators",
+            field=models.ManyToManyField(
+                blank=True,
+                help_text="These users will be able to edit the contest, but will not be listed as authors.",
+                related_name="_judge_contest_curators_+",
+                to="judge.Profile",
+                verbose_name="curators",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="contest",
+            name="testers",
+            field=models.ManyToManyField(
+                blank=True,
+                help_text="These users will be able to view the contest, but not edit it.",
+                related_name="_judge_contest_testers_+",
+                to="judge.Profile",
+                verbose_name="testers",
+            ),
+        ),
+    ]

judge/migrations/0175_add_profile_index.py

@@ -0,0 +1,20 @@
+# Generated by Django 3.2.18 on 2023-11-29 02:26
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0174_contest_summary_result"),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name="profile",
+            index=models.Index(
+                fields=["is_unlisted", "performance_points"],
+                name="judge_profi_is_unli_d4034c_idx",
+            ),
+        ),
+    ]

judge/migrations/0176_comment_revision_count.py

@@ -0,0 +1,30 @@
+# Generated by Django 3.2.18 on 2023-12-06 01:28
+
+from django.db import migrations, models
+
+
+# Run this in shell
+def migrate_revision(apps, schema_editor):
+    Comment = apps.get_model("judge", "Comment")
+
+    for c in Comment.objects.all():
+        c.revision_count = c.versions.count()
+        c.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0175_add_profile_index"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="comment",
+            name="revision_count",
+            field=models.PositiveIntegerField(default=1),
+        ),
+        # migrations.RunPython(
+        #     migrate_revision, migrations.RunPython.noop, atomic=True
+        # ),
+    ]

judge/migrations/0177_test_formatter.py

@@ -0,0 +1,35 @@
+from django.db import migrations, models
+import judge.models.test_formatter
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0176_comment_revision_count"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="TestFormatterModel",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                (
+                    "file",
+                    models.FileField(
+                        blank=True,
+                        null=True,
+                        upload_to=judge.models.test_formatter.test_formatter_path,
+                        verbose_name="testcase file",
+                    ),
+                ),
+            ],
+        )
+    ]

judge/migrations/0178_remove_user_script.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.2.18 on 2024-01-14 01:04
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0177_test_formatter"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="profile",
+            name="user_script",
+        ),
+    ]

judge/migrations/0179_submission_result_lang_index.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.2.18 on 2024-01-23 00:32
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0178_remove_user_script"),
+    ]
+
+    operations = [
+        migrations.AddIndex(
+            model_name="submission",
+            index=models.Index(
+                fields=["language", "result"], name="judge_submi_languag_874af4_idx"
+            ),
+        ),
+    ]

judge/migrations/0180_course.py

@@ -0,0 +1,78 @@
+# Generated by Django 3.2.18 on 2024-02-15 02:12
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0179_submission_result_lang_index"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="CourseLesson",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("title", models.TextField(verbose_name="course title")),
+                ("content", models.TextField(verbose_name="course content")),
+                ("order", models.IntegerField(default=0, verbose_name="order")),
+                ("points", models.IntegerField(verbose_name="points")),
+            ],
+        ),
+        migrations.RemoveField(
+            model_name="courseresource",
+            name="course",
+        ),
+        migrations.RemoveField(
+            model_name="course",
+            name="ending_time",
+        ),
+        migrations.AlterField(
+            model_name="courserole",
+            name="course",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                to="judge.course",
+                verbose_name="course",
+            ),
+        ),
+        migrations.DeleteModel(
+            name="CourseAssignment",
+        ),
+        migrations.DeleteModel(
+            name="CourseResource",
+        ),
+        migrations.AddField(
+            model_name="courselesson",
+            name="course",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                to="judge.course",
+                verbose_name="course",
+            ),
+        ),
+        migrations.AddField(
+            model_name="courselesson",
+            name="problems",
+            field=models.ManyToManyField(to="judge.Problem"),
+        ),
+        migrations.AlterUniqueTogether(
+            name="courserole",
+            unique_together={("course", "user")},
+        ),
+        migrations.AlterField(
+            model_name="courselesson",
+            name="problems",
+            field=models.ManyToManyField(blank=True, to="judge.Problem"),
+        ),
+    ]

judge/migrations/0181_remove_math_engine.py

@@ -0,0 +1,50 @@
+# Generated by Django 3.2.18 on 2024-02-26 20:43
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0180_course"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="profile",
+            name="math_engine",
+        ),
+        migrations.AlterField(
+            model_name="course",
+            name="about",
+            field=models.TextField(verbose_name="course description"),
+        ),
+        migrations.AlterField(
+            model_name="courselesson",
+            name="course",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="lessons",
+                to="judge.course",
+                verbose_name="course",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="courselesson",
+            name="problems",
+            field=models.ManyToManyField(
+                blank=True, to="judge.Problem", verbose_name="problem"
+            ),
+        ),
+        migrations.AlterField(
+            model_name="courserole",
+            name="user",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="course_roles",
+                to="judge.profile",
+                verbose_name="user",
+            ),
+        ),
+    ]

judge/migrations/0182_rename_customcpp.py

@@ -0,0 +1,75 @@
+# Generated by Django 3.2.18 on 2024-03-19 04:28
+
+from django.db import migrations, models
+
+
+def migrate_checker(apps, schema_editor):
+    ProblemData = apps.get_model("judge", "ProblemData")
+    ProblemTestCase = apps.get_model("judge", "ProblemTestCase")
+
+    for p in ProblemData.objects.all():
+        if p.checker == "customval":
+            p.checker = "customcpp"
+            p.save()
+
+    for p in ProblemTestCase.objects.all():
+        if p.checker == "customval":
+            p.checker = "customcpp"
+            p.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0181_remove_math_engine"),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_checker, migrations.RunPython.noop, atomic=True),
+        migrations.AlterField(
+            model_name="problemdata",
+            name="checker",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("standard", "Standard"),
+                    ("floats", "Floats"),
+                    ("floatsabs", "Floats (absolute)"),
+                    ("floatsrel", "Floats (relative)"),
+                    ("rstripped", "Non-trailing spaces"),
+                    ("sorted", "Unordered"),
+                    ("identical", "Byte identical"),
+                    ("linecount", "Line-by-line"),
+                    ("custom", "Custom checker (PY)"),
+                    ("customcpp", "Custom checker (CPP)"),
+                    ("interact", "Interactive"),
+                    ("testlib", "Testlib"),
+                ],
+                max_length=10,
+                verbose_name="checker",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="problemtestcase",
+            name="checker",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("standard", "Standard"),
+                    ("floats", "Floats"),
+                    ("floatsabs", "Floats (absolute)"),
+                    ("floatsrel", "Floats (relative)"),
+                    ("rstripped", "Non-trailing spaces"),
+                    ("sorted", "Unordered"),
+                    ("identical", "Byte identical"),
+                    ("linecount", "Line-by-line"),
+                    ("custom", "Custom checker (PY)"),
+                    ("customcpp", "Custom checker (CPP)"),
+                    ("interact", "Interactive"),
+                    ("testlib", "Testlib"),
+                ],
+                max_length=10,
+                verbose_name="checker",
+            ),
+        ),
+    ]