Add direct message

chat_box/utils.py

@@ -0,0 +1,18 @@
+from cryptography.fernet import Fernet
+
+from django.conf import settings
+
+secret_key = settings.CHAT_SECRET_KEY
+fernet = Fernet(secret_key)
+
+def encrypt_url(creator_id, other_id):
+    message = str(creator_id) + '_' + str(other_id)
+    return fernet.encrypt(message.encode()).decode()
+
+def decrypt_url(message_encrypted):
+    try:
+        dec_message = fernet.decrypt(message_encrypted.encode()).decode()
+        creator_id, other_id = dec_message.split('_')
+        return int(creator_id), int(other_id)
+    except Exception as e:
+        return None, None