NDOJ/judge/template_context.py

122 lines
4 KiB
Python
Raw Permalink Normal View History

2020-01-21 06:35:58 +00:00
from functools import partial
from django.conf import settings
from django.contrib.auth.context_processors import PermWrapper
from django.contrib.sites.shortcuts import get_current_site
from django.core.cache import cache
from django.utils.functional import SimpleLazyObject, new_method_proxy
from judge.utils.caniuse import CanIUse, SUPPORT
from .models import MiscConfig, NavigationBar, Profile
class FixedSimpleLazyObject(SimpleLazyObject):
if not hasattr(SimpleLazyObject, '__iter__'):
__iter__ = new_method_proxy(iter)
def get_resource(request):
use_https = settings.DMOJ_SSL
if use_https == 1:
scheme = 'https' if request.is_secure() else 'http'
elif use_https > 1:
scheme = 'https'
else:
scheme = 'http'
return {
'PYGMENT_THEME': settings.PYGMENT_THEME,
'INLINE_JQUERY': settings.INLINE_JQUERY,
'INLINE_FONTAWESOME': settings.INLINE_FONTAWESOME,
'JQUERY_JS': settings.JQUERY_JS,
'FONTAWESOME_CSS': settings.FONTAWESOME_CSS,
'DMOJ_SCHEME': scheme,
'DMOJ_CANONICAL': settings.DMOJ_CANONICAL,
}
def get_profile(request):
if request.user.is_authenticated:
return Profile.objects.get_or_create(user=request.user)[0]
return None
def comet_location(request):
if request.is_secure():
websocket = getattr(settings, 'EVENT_DAEMON_GET_SSL', settings.EVENT_DAEMON_GET)
poll = getattr(settings, 'EVENT_DAEMON_POLL_SSL', settings.EVENT_DAEMON_POLL)
else:
websocket = settings.EVENT_DAEMON_GET
poll = settings.EVENT_DAEMON_POLL
return {'EVENT_DAEMON_LOCATION': websocket,
'EVENT_DAEMON_POLL_LOCATION': poll}
def __nav_tab(path):
result = list(NavigationBar.objects.extra(where=['%s REGEXP BINARY regex'], params=[path])[:1])
return result[0].get_ancestors(include_self=True).values_list('key', flat=True) if result else []
def general_info(request):
path = request.get_full_path()
return {
'nav_tab': FixedSimpleLazyObject(partial(__nav_tab, request.path)),
'nav_bar': NavigationBar.objects.all(),
'LOGIN_RETURN_PATH': '' if path.startswith('/accounts/') else path,
'perms': PermWrapper(request.user),
}
def site(request):
return {'site': get_current_site(request)}
class MiscConfigDict(dict):
__slots__ = ('language', 'site')
def __init__(self, language='', domain=None):
self.language = language
self.site = domain
super(MiscConfigDict, self).__init__()
def __missing__(self, key):
cache_key = 'misc_config:%s:%s:%s' % (self.site, self.language, key)
value = cache.get(cache_key)
if value is None:
keys = ['%s.%s' % (key, self.language), key] if self.language else [key]
if self.site is not None:
keys = ['%s:%s' % (self.site, key) for key in keys] + keys
map = dict(MiscConfig.objects.values_list('key', 'value').filter(key__in=keys))
for item in keys:
if item in map:
value = map[item]
break
else:
value = ''
cache.set(cache_key, value, 86400)
self[key] = value
return value
def misc_config(request):
domain = get_current_site(request).domain
return {'misc_config': MiscConfigDict(domain=domain),
'i18n_config': MiscConfigDict(language=request.LANGUAGE_CODE, domain=domain)}
def site_name(request):
return {'SITE_NAME': settings.SITE_NAME,
'SITE_LONG_NAME': settings.SITE_LONG_NAME,
'SITE_ADMIN_EMAIL': settings.SITE_ADMIN_EMAIL}
def math_setting(request):
caniuse = CanIUse(request.META.get('HTTP_USER_AGENT', ''))
if request.user.is_authenticated:
engine = request.profile.math_engine
else:
engine = settings.MATHOID_DEFAULT_TYPE
if engine == 'auto':
engine = 'mml' if bool(settings.MATHOID_URL) and caniuse.mathml == SUPPORT else 'jax'
return {'MATH_ENGINE': engine, 'REQUIRE_JAX': engine == 'jax', 'caniuse': caniuse}