Titan/webapp/titanembeds/utils.py
2017-09-13 22:01:07 +00:00

291 lines
11 KiB
Python

from titanembeds.database import db, Guilds, UnauthenticatedUsers, UnauthenticatedBans, AuthenticatedUsers, GuildMembers, get_guild_member
from flask import request, session
from flask_limiter import Limiter
from flask_socketio import SocketIO
from config import config
from sqlalchemy import and_
import random
import string
import hashlib
import time
import json
from titanembeds.discordrest import DiscordREST
discord_api = DiscordREST(config['bot-token'])
def get_client_ipaddr():
ip = request.remote_addr
return hashlib.sha512((config['app-secret'] + ip).encode('utf-8')).hexdigest()[:15]
def generate_session_key():
sess = session.get("sessionunique", None)
if not sess:
rand_str = lambda n: ''.join([random.choice(string.ascii_lowercase) for i in range(n)])
session['sessionunique'] = rand_str(25)
sess = session['sessionunique']
return sess #Totally unique
def make_cache_key(*args, **kwargs):
path = request.path
args = str(hash(frozenset(request.args.items())))
ip = get_client_ipaddr()
sess = generate_session_key()
return (path + args + sess + ip)
def make_user_cache_key(*args, **kwargs):
ip = get_client_ipaddr()
sess = generate_session_key()
return (sess + ip)
def make_guilds_cache_key():
sess = generate_session_key()
ip = get_client_ipaddr()
return (sess + ip + "user_guilds")
def make_guildchannels_cache_key():
guild_id = request.values.get('guild_id', "0")
sess = generate_session_key()
ip = get_client_ipaddr()
return (sess + ip + guild_id + "user_guild_channels")
def channel_ratelimit_key(): # Generate a bucket with given channel & unique session key
sess = generate_session_key()
channel_id = request.values.get('channel_id', "0")
return (sess + channel_id)
def guild_ratelimit_key():
ip = get_client_ipaddr()
guild_id = request.values.get('guild_id', "0")
return (ip + guild_id)
def check_guild_existance(guild_id):
dbGuild = Guilds.query.filter_by(guild_id=guild_id).first()
if not dbGuild:
return False
else:
return True
def guild_accepts_visitors(guild_id):
dbGuild = Guilds.query.filter_by(guild_id=guild_id).first()
return dbGuild.visitor_view
def guild_query_unauth_users_bool(guild_id):
dbGuild = db.session.query(Guilds).filter(Guilds.guild_id==guild_id).first()
return dbGuild.unauth_users
def user_unauthenticated():
if 'unauthenticated' in session:
return session['unauthenticated']
return True
def checkUserRevoke(guild_id, user_key=None):
revoked = True #guilty until proven not revoked
if user_unauthenticated():
dbUser = db.session.query(UnauthenticatedUsers).filter(UnauthenticatedUsers.guild_id == guild_id, UnauthenticatedUsers.user_key == user_key).first()
revoked = dbUser.isRevoked()
else:
banned = checkUserBanned(guild_id)
if banned:
return revoked
dbUser = GuildMembers.query.filter(GuildMembers.guild_id == guild_id).filter(GuildMembers.user_id == session["user_id"]).first()
revoked = not dbUser or not dbUser.active
return revoked
def checkUserBanned(guild_id, ip_address=None):
banned = True
if user_unauthenticated():
dbUser = UnauthenticatedBans.query.filter(and_(UnauthenticatedBans.guild_id == guild_id, UnauthenticatedBans.ip_address == ip_address)).all()
if not dbUser:
banned = False
else:
for usr in dbUser:
if usr.lifter_id is not None:
banned = False
else:
banned = False
dbUser = GuildMembers.query.filter(GuildMembers.guild_id == guild_id).filter(GuildMembers.user_id == session["user_id"]).first()
if not dbUser:
banned = False
else:
banned = dbUser.banned
return banned
from titanembeds.oauth import check_user_can_administrate_guild, user_has_permission
def update_user_status(guild_id, username, user_key=None):
if user_unauthenticated():
ip_address = get_client_ipaddr()
status = {
'authenticated': False,
'avatar': None,
'manage_embed': False,
'ip_address': ip_address,
'username': username,
'nickname': None,
'user_key': user_key,
'guild_id': guild_id,
'user_id': session['user_id'],
'banned': checkUserBanned(guild_id, ip_address),
'revoked': checkUserRevoke(guild_id, user_key),
}
if status['banned'] or status['revoked']:
session['user_keys'].pop(guild_id, None)
return status
dbUser = UnauthenticatedUsers.query.filter(and_(UnauthenticatedUsers.guild_id == guild_id, UnauthenticatedUsers.user_key == user_key)).first()
dbUser.bumpTimestamp()
if dbUser.username != username or dbUser.ip_address != ip_address:
dbUser.username = username
dbUser.ip_address = ip_address
db.session.commit()
else:
status = {
'authenticated': True,
'avatar': session["avatar"],
'manage_embed': check_user_can_administrate_guild(guild_id),
'username': username,
'nickname': None,
'discriminator': session['discriminator'],
'guild_id': guild_id,
'user_id': session['user_id'],
'banned': checkUserBanned(guild_id),
'revoked': checkUserRevoke(guild_id)
}
if status['banned'] or status['revoked']:
return status
dbMember = get_guild_member(guild_id, status["user_id"])
if dbMember:
status["nickname"] = dbMember.nickname
dbUser = db.session.query(AuthenticatedUsers).filter(and_(AuthenticatedUsers.guild_id == guild_id, AuthenticatedUsers.client_id == status['user_id'])).first()
dbUser.bumpTimestamp()
return status
def check_user_in_guild(guild_id):
if user_unauthenticated():
return guild_id in session.get("user_keys", {})
else:
dbUser = db.session.query(AuthenticatedUsers).filter(and_(AuthenticatedUsers.guild_id == guild_id, AuthenticatedUsers.client_id == session['user_id'])).first()
return dbUser is not None and not checkUserRevoke(guild_id)
def get_member_roles(guild_id, user_id):
q = db.session.query(GuildMembers).filter(GuildMembers.guild_id == guild_id).filter(GuildMembers.user_id == user_id).first()
return json.loads(q.roles)
def get_guild_channels(guild_id, force_everyone=False):
if user_unauthenticated() or force_everyone:
member_roles = [guild_id] #equivilant to @everyone role
else:
member_roles = get_member_roles(guild_id, session['user_id'])
if guild_id not in member_roles:
member_roles.append(guild_id)
bot_member_roles = get_member_roles(guild_id, config["client-id"])
if guild_id not in bot_member_roles:
bot_member_roles.append(guild_id)
dbguild = db.session.query(Guilds).filter(Guilds.guild_id == guild_id).first()
guild_channels = json.loads(dbguild.channels)
guild_roles = json.loads(dbguild.roles)
guild_owner = str(dbguild.owner_id)
result_channels = []
for channel in guild_channels:
if channel['type'] in ["text", "category"]:
result = get_channel_permission(channel, guild_id, guild_owner, guild_roles, member_roles, session.get("user_id"), force_everyone)
bot_result = get_channel_permission(channel, guild_id, guild_owner, guild_roles, bot_member_roles, config["client-id"], False)
if not bot_result["read"]:
result["read"] = False
if not bot_result["write"]:
result["write"] = False
if not bot_result["mention_everyone"]:
result["mention_everyone"] = False
result_channels.append(result)
return sorted(result_channels, key=lambda k: k['channel']['position'])
def get_channel_permission(channel, guild_id, guild_owner, guild_roles, member_roles, user_id=None, force_everyone=False):
result = {"channel": channel, "read": False, "write": False, "mention_everyone": False}
if not user_id:
user_id = session.get("user_id")
if guild_owner == user_id:
result["read"] = True
result["write"] = True
result["mention_everyone"] = True
return result
channel_perm = 0
# @everyone
for role in guild_roles:
if role["id"] == guild_id:
channel_perm |= role["permissions"]
continue
# User Guild Roles
for m_role in member_roles:
for g_role in guild_roles:
if g_role["id"] == m_role:
channel_perm |= g_role["permissions"]
continue
# If has server administrator permission
if user_has_permission(channel_perm, 3):
result["read"] = True
result["write"] = True
result["mention_everyone"] = True
return result
denies = 0
allows = 0
# channel specific
for overwrite in channel["permission_overwrites"]:
if overwrite["type"] == "role" and overwrite["id"] in member_roles:
denies |= overwrite["deny"]
allows |= overwrite["allow"]
channel_perm = (channel_perm & ~denies) | allows
# member specific
for overwrite in channel["permission_overwrites"]:
if overwrite["type"] == "member" and overwrite["id"] == session.get("user_id"):
channel_perm = (channel_perm & ~overwrite['deny']) | overwrite['allow']
break
result["read"] = user_has_permission(channel_perm, 10)
result["write"] = user_has_permission(channel_perm, 11)
result["mention_everyone"] = user_has_permission(channel_perm, 17)
# If default channel, you can read
if channel["id"] == guild_id:
result["read"] = True
# If you cant read channel, you cant write in it
if not user_has_permission(channel_perm, 10):
result["read"] = False
result["write"] = False
result["mention_everyone"] = False
return result
def bot_can_create_webhooks(guild):
perm = 0
guild_roles = json.loads(guild.roles)
# @everyone
for role in guild_roles:
if role["id"] == guild.guild_id:
perm |= role["permissions"]
continue
member_roles = get_member_roles(guild.guild_id, config["client-id"])
# User Guild Roles
for m_role in member_roles:
for g_role in guild_roles:
if g_role["id"] == m_role:
perm |= g_role["permissions"]
continue
if user_has_permission(perm, 3): # Admin perms override yes
return True
return user_has_permission(perm, 29)
def guild_webhooks_enabled(guild_id):
dbguild = db.session.query(Guilds).filter(Guilds.guild_id == guild_id).first()
if not dbguild.webhook_messages:
return False
return bot_can_create_webhooks(dbguild)
rate_limiter = Limiter(key_func=get_client_ipaddr) # Default limit by ip address
socketio = SocketIO()