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supporter.py
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supporter.py
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from threading import Thread
from typing import Optional, Iterable, Any
import uuid, time, msgpack, pymongo, re, copy, asyncio
from cloudlink import CloudlinkServer
from database import db, rdb
from uploads import FileDetails
"""
Meower Supporter Module
This module provides constant variables, and other miscellaneous supporter utilities.
"""
FILE_ID_REGEX = "[a-zA-Z0-9]{24}"
CUSTOM_EMOJI_REGEX = f"<:({FILE_ID_REGEX})>"
class Supporter:
def __init__(self, cl: CloudlinkServer):
# CL server
self.cl = cl
# Set status
status = db.config.find_one({"_id": "status"})
self.repair_mode = status["repair_mode"]
self.registration = status["registration"]
# Start admin pub/sub listener
Thread(target=self.listen_for_admin_pubsub, daemon=True).start()
def get_chats(self, username: str) -> list[dict[str, Any]]:
# Get active DMs and favorited chats
user_settings = db.user_settings.find_one({"_id": username}, projection={
"active_dms": 1,
"favorited_chats": 1
})
if not user_settings:
user_settings = {
"active_dms": [],
"favorited_chats": []
}
if "active_dms" not in user_settings:
user_settings["active_dms"] = []
if "favorited_chats" not in user_settings:
user_settings["favorited_chats"] = []
# Get and return chats
return list(db.chats.find({"$or": [
{ # DMs
"_id": {
"$in": user_settings["active_dms"] + user_settings["favorited_chats"]
},
"members": username,
"deleted": False
},
{ # group chats
"members": username,
"type": 0,
"deleted": False
}
]}))
def create_post(
self,
origin: str,
author: str,
content: str,
attachments: list[FileDetails] = [],
stickers: list[str] = [],
nonce: Optional[str] = None,
chat_members: list[str] = [],
reply_to: list[str] = []
) -> tuple[bool, dict]:
# Create post ID and get timestamp
post_id = str(uuid.uuid4())
# Make sure replied to posts exist
for reply in reply_to:
if not db.posts.count_documents({
"_id": reply,
"post_origin": origin
}, limit=1):
reply_to.remove(reply)
# Construct post object
post = {
"_id": post_id,
"post_origin": origin,
"u": author,
"t": {"e": int(time.time())},
"p": content,
"attachments": attachments,
"isDeleted": False,
"pinned": False,
"reply_to": reply_to,
"reactions": [],
"emojis": list(set(re.findall(CUSTOM_EMOJI_REGEX, content))),
"stickers": stickers
}
# Add database item
if origin != "livechat":
db.posts.insert_one(post)
# Add nonce for WebSocket
if nonce:
post["nonce"] = nonce
# Send live packet
if origin == "inbox":
self.cl.send_event("inbox_message", copy.copy(post), usernames=(None if author == "Server" else [author]))
else:
self.cl.send_event("post", copy.copy(post), usernames=(None if origin in ["home", "livechat"] else chat_members))
# Update other database items
if origin == "inbox":
if author == "Server":
db.user_settings.update_many({}, {"$set": {"unread_inbox": True}})
else:
db.user_settings.update_one({"_id": author}, {"$set": {"unread_inbox": True}})
elif origin != "home":
db.chats.update_one({"_id": origin}, {"$set": {"last_active": int(time.time())}})
# Return post
return post
def listen_for_admin_pubsub(self):
pubsub = rdb.pubsub()
pubsub.subscribe("admin")
for msg in pubsub.listen():
try:
msg = msgpack.unpackb(msg["data"])
match msg.pop("op"):
case "revoke_acc_session":
for c in self.cl.usernames.get(msg["user"], []):
if "sid" in msg and msg["sid"] != c.acc_session_id:
continue
asyncio.run(c.kick())
case "alert_user":
self.create_post("inbox", msg["user"], msg["content"])
case "ban_user":
# Get user details
username = msg.pop("user")
user = db.usersv0.find_one({"_id": username}, projection={"uuid": 1, "ban": 1})
if not user:
continue
# Construct ban state
ban_state = {
"state": msg.get("state", user["ban"]["state"]),
"restrictions": msg.get("restrictions", user["ban"]["restrictions"]),
"expires": msg.get("expires", user["ban"]["expires"]),
"reason": msg.get("reason", user["ban"]["reason"]),
}
# Set new ban state
db.usersv0.update_one({"_id": username}, {"$set": {"ban": ban_state}})
# Add note to admin notes
if "note" in msg:
notes = db.admin_notes.find_one({"_id": user["uuid"]})
if notes and notes["notes"] != "":
msg["note"] = notes["notes"] + "\n\n" + msg["note"]
db.admin_notes.update_one({"_id": user["uuid"]}, {"$set": {
"notes": msg["note"],
"last_modified_by": "Server",
"last_modified_at": int(time.time())
}}, upsert=True)
# Logout user (can't kick because of async stuff)
for c in self.cl.usernames.get(username, []):
asyncio.run(c.kick())
except:
continue
def parse_posts_v0(
self,
posts: Iterable[dict[str, Any]],
requester: Optional[str] = None,
include_replies: bool = True,
include_revisions: bool = False
) -> Iterable[dict[str, Any]]:
posts = list(posts)
for post in posts:
if post is None:
continue
# Stupid legacy stuff
post.update({
"type": 2 if post["post_origin"] == "inbox" else 1,
"post_id": post["_id"]
})
# Author
post.update({"author": db.usersv0.find_one({"_id": post["u"]}, projection={
"_id": 1,
"uuid": 1,
"flags": 1,
"pfp_data": 1,
"avatar": 1,
"avatar_color": 1
})})
# Replies
if include_replies:
post.update({"reply_to": [
self.parse_posts_v0([db.posts.find_one({
"_id": post_id,
"post_origin": post["post_origin"],
"isDeleted": {"$ne": True}
})], include_replies=False, requester=requester)[0] for post_id in post.pop("reply_to", [])
]})
else:
post.update({"reply_to": [None for _ in post.pop("reply_to", [])]})
# Custom emojis
if post.get("emojis"):
post["emojis"] = list(db.chat_emojis.find({
"_id": {"$in": post.get("emojis", [])}
}, projection={"created_at": 0, "created_by": 0}))
# Stickers
if post.get("stickers"):
post["stickers"] = list(db.chat_stickers.find({
"_id": {"$in": post.get("stickers", [])}
}, projection={"created_at": 0, "created_by": 0}))
# Reactions
[reaction.update({
"user_reacted": (db.post_reactions.count_documents({"_id": {
"post_id": post["_id"],
"emoji": reaction["emoji"],
"user": requester
}}, limit=1) > 0) if requester else False
}) for reaction in post.get("reactions", [])]
# Revisions
if include_revisions:
post.update({
"revisions": list(db.post_revisions.find(
{"post_id": post["_id"]},
sort=[("time", pymongo.DESCENDING)]
))
})
return posts