Basic websockets authentication handling

discordbot/titanembeds/socketio/socketiointerface.py

@@ -23,4 +23,13 @@ class SocketIOInterface:
                 "mentions": get_message_mentions(message.mentions),
                 "attachments": message.attachments,
             }
-            await self.io.emit('MESSAGE_CREATE', data=msg, room=message.server.id, namespace='/gateway')
+            nickname = None
+            if hasattr(message.author, 'nick') and message.author.nick:
+                nickname = message.author.nick
+            msg["author"]["nickname"] = nickname
+            for mention in msg["mentions"]:
+                mention["nickname"] = None
+                member = message.server.get_member(mention["id"])
+                if member:
+                    mention["nickname"] = member.nick
+            await self.io.emit('MESSAGE_CREATE', data=msg, room=str("CHANNEL_"+message.channel.id), namespace='/gateway')

webapp/titanembeds/blueprints/api/api.py

@@ -2,11 +2,10 @@ from titanembeds.database import db, Guilds, UnauthenticatedUsers, Unauthenticat
 from titanembeds.decorators import valid_session_required, discord_users_only
 from titanembeds.utils import check_guild_existance, guild_accepts_visitors, guild_query_unauth_users_bool, get_client_ipaddr, discord_api, rate_limiter, channel_ratelimit_key, guild_ratelimit_key
 from titanembeds.oauth import user_has_permission, generate_avatar_url, check_user_can_administrate_guild
-from titanembeds.database import get_administrators_list
+from titanembeds.userbookkeeping import user_unauthenticated, checkUserRevoke, checkUserBanned, update_user_status, check_user_in_guild, get_guild_channels
 from flask import Blueprint, abort, jsonify, session, request, url_for
 from sqlalchemy import and_
 import random
-import requests
 import json
 import datetime
 import re
@@ -14,97 +13,6 @@ from config import config
 
 api = Blueprint("api", __name__)
 
-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 = UnauthenticatedUsers.query.filter(and_(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
-
-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['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 parse_emoji(textToParse, guild_id):
     guild_emojis = get_guild_emojis(guild_id)
     for gemoji in guild_emojis:
@@ -160,92 +68,6 @@ def format_everyone_mention(channel, content):
             content = content.replace("@here", u"@\u200Bhere")
     return content
 
-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_dbguild_channels(guild_id):
-    q = db.session.query(Guilds).filter(Guilds.guild_id == guild_id).first()
-    return json.loads(q.channels)
-
-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)
-    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'] == "text":
-            result = {"channel": channel, "read": False, "write": False, "mention_everyone": False}
-            if guild_owner == session.get("user_id"):
-                result["read"] = True
-                result["write"] = True
-                result["mention_everyone"] = True
-                result_channels.append(result)
-                continue
-            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
-                result_channels.append(result)
-                continue
-
-            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
-
-            result_channels.append(result)
-    return sorted(result_channels, key=lambda k: k['channel']['position'])
-
 def filter_guild_channel(guild_id, channel_id, force_everyone=False):
     channels = get_guild_channels(guild_id, force_everyone)
     for chan in channels:
@@ -341,6 +163,7 @@ def fetch():
         status_code = 403
         if user_unauthenticated():
             session['user_keys'].pop(guild_id, None)
+            session.modified = True
     else:
         chan = filter_guild_channel(guild_id, channel_id)
         if not chan:

webapp/titanembeds/blueprints/gateway/gateway.py

@@ -1,22 +1,43 @@
-from titanembeds.utils import socketio
+from titanembeds.utils import socketio, guild_accepts_visitors, get_client_ipaddr
+from titanembeds.userbookkeeping import check_user_in_guild, get_guild_channels, update_user_status
 from flask_socketio import Namespace, emit, disconnect, join_room
 import functools
 from flask import request, session
-
-def authenticated_only(f):
-    @functools.wraps(f)
-    def wrapped(*args, **kwargs):
-        if False:
-            pass
-            #disconnect()
-        else:
-            return f(*args, **kwargs)
-    return wrapped
+import time
 
 class Gateway(Namespace):
     def on_connect(self):
         emit('hello')
     
     def on_identify(self, data):
-        room = data["guild_id"]
-        join_room(room)
+        guild_id = data["guild_id"]
+        if not guild_accepts_visitors(guild_id) and not check_user_in_guild(guild_id):
+            disconnect()
+            return
+        channels = []
+        if guild_accepts_visitors(guild_id) and not check_user_in_guild(guild_id):
+            channels = get_guild_channels(guild_id, force_everyone=True)
+        else:
+            channels = get_guild_channels(guild_id)
+        join_room("GUILD_"+guild_id)
+        for chan in channels:
+            if chan["read"]:
+                join_room("CHANNEL_"+chan["channel"]["id"])
+        if session.get("unauthenticated", True) and guild_id in session.get("user_keys", {}):
+            join_room("IP_"+get_client_ipaddr())
+        elif not session.get("unauthenticated", True):
+            join_room("USER_"+session["user_id"])
+        emit("identified")
+    
+    def on_heartbeat(self, data):
+        guild_id = data["guild_id"]
+        visitor_mode = data["visitor_mode"]
+        if not visitor_mode:
+            status = update_user_status(guild_id, session["username"], session["user_keys"][guild_id])
+            if status["revoked"] or status["banned"]:
+                emit("revoke")
+                time.sleep(1000)
+                disconnect()
+        else:
+            if not guild_accepts_visitors(guild_id):
+                disconnect()

webapp/titanembeds/static/js/embed.js

@@ -17,17 +17,13 @@
     var has_already_been_focused = false; // keep track of if the embed has initially been focused.
     var has_already_been_initially_resized = false; // keep track if the embed initially been resized
     var logintimer; // timer to keep track of user inactivity after hitting login
-    var fetchtimeout; // fetch routine timer
-    var currently_fetching; // fetch lock- if true, do not fetch
     var last_message_id; // last message tracked
     var selected_channel = null; // user selected channel
     var guild_channels = {}; // all server channels used to highlight channels in messages
     var emoji_store = {}; // all server emojis
-    var times_fetched = 0; // kept track of how many times that it has fetched
-    var fetch_error_count = 0; // Number of errors fetch has encountered
-    var priority_query_guild = false; // So you have selected a channel? Let's populate it.
     var current_username_discrim; // Current username/discrim pair, eg EndenDraogn#4151
     var visitor_mode = false; // Keep track of if using the visitor mode or authenticate mode
+    var socket = null; // Socket.io object
 
     function element_in_view(element, fullyInView) {
         var pageTop = $(window).scrollTop();
@@ -249,6 +245,8 @@
         } else {
             primeEmbed();
         }
+        
+        setInterval(send_socket_heartbeat, 5000);
     });
     
     function changeTheme(theme=null, keep_custom_css=true) {
@@ -339,6 +337,9 @@
     }
 
     function initialize_embed(guildobj) {
+        if (socket) {
+            socket.disconnect();
+        }
         if (guildobj === undefined) {
             var guild = query_guild();
             guild.done(function(data) {
@@ -379,6 +380,7 @@
         fill_unauthenticated_users(guildobj.embedmembers.unauthenticated);
         $("#instant-inv").attr("href", guildobj.instant_invite);
         run_fetch_routine();
+        initiate_websockets();
     }
 
     function fill_channels(channels) {
@@ -559,8 +561,6 @@
             last_message_id = null;
             $("#channels-list > li.active").removeClass("active");
             $("#channel-"+selected_channel).parent().addClass("active");
-            priority_query_guild = true;
-            clearTimeout(fetchtimeout);
             run_fetch_routine();
         }
     }
@@ -718,11 +718,6 @@
     }
 
     function run_fetch_routine() {
-        if (currently_fetching) {
-            return;
-        }
-        currently_fetching = true;
-        times_fetched += 1;
         var channel_id = selected_channel;
         var fet;
         var jumpscroll;
@@ -752,13 +747,11 @@
             }
             var guild = query_guild();
             guild.done(function(guildobj) {
-                priority_query_guild = false;
                 fill_channels(guildobj.channels);
                 fill_discord_members(guildobj.discordmembers);
                 fill_authenticated_users(guildobj.embedmembers.authenticated);
                 fill_unauthenticated_users(guildobj.embedmembers.unauthenticated);
                 $("#instant-inv").attr("href", guildobj.instant_invite);
-                initiate_websockets();
             });
         });
         fet.fail(function(data) {
@@ -769,25 +762,9 @@
                 $('#loginmodal').modal('open');
                 Materialize.toast('Session expired! You have been logged out.', 10000);
             }
-            
-            if (data.status != 429) {
-                setVisitorMode(true);
-                if (visitor_mode) {
-                    fetchtimeout = setTimeout(run_fetch_routine, 5000);
-                }
-            }
-        });
-        fet.catch(function(data) {
-          if (500 <= data.status && data.status < 600) {
-              if (fetch_error_count % 5 == 0) {
-                  Materialize.toast('Fetching messages error! EndenDragon probably broke something. Sorry =(', 10000);
-              }
-              fetch_error_count += 1;
-              fetchtimeout = setTimeout(run_fetch_routine, 10000);
-          }
+            setVisitorMode(true);
         });
         fet.always(function() {
-            currently_fetching = false;
             $("#fetching-indicator").fadeOut(800);
         });
     }
@@ -870,8 +847,6 @@
                 var usr = change_unauthenticated_username($(this).val());
                 usr.done(function(data) {
                     Materialize.toast('Username changed successfully!', 10000);
-                    priority_query_guild = true;
-                    clearTimeout(fetchtimeout);
                     run_fetch_routine();
                 });
                 usr.fail(function(data) {
@@ -900,8 +875,6 @@
             var funct = post(selected_channel, $(this).val());
             funct.done(function(data) {
                 $("#messagebox").val("");
-                clearTimeout(fetchtimeout);
-                run_fetch_routine();
             });
             funct.fail(function(data) {
                 Materialize.toast('Failed to send message.', 10000);
@@ -945,13 +918,40 @@
     });
     
     function initiate_websockets() {
-        var socket = io.connect(location.protocol + '//' + document.domain + ':' + location.port + "/gateway", {path: '/gateway', transports: ['websocket']});
-        socket.on('connect', function() {
+        if (socket) {
+            return;
+        }
+        
+        socket = io.connect(location.protocol + '//' + document.domain + ':' + location.port + "/gateway", {path: '/gateway', transports: ['websocket']});
+        socket.on('connect', function () {
             socket.emit('identify', {"guild_id": guild_id});
         });
         
-        socket.on('MESSAGE_CREATE', function(msg) {
-            console.log(msg);
+        socket.on("disconnect", function () {
+            socket = null;
+        });
+        
+        socket.on("revoke", function () {
+            $('#loginmodal').modal('open');
+            setVisitorMode(true);
+            primeEmbed();
+            Materialize.toast('Authentication error! You have been disconnected by the server.', 10000);
+        });
+        
+        socket.on("MESSAGE_CREATE", function (msg) {
+            var thismsgchan = msg.channel_id;
+            if (selected_channel != thismsgchan) {
+                return;
+            }
+            var jumpscroll = element_in_view($('#discordmessage_'+last_message_id), true);
+            last_message_id = fill_discord_messages([msg], jumpscroll);
         });
     }
+    
+    function send_socket_heartbeat() {
+        if (!socket) {
+            return;
+        }
+        socket.emit("heartbeat", {"guild_id": guild_id, "visitor_mode": visitor_mode});
+    }
 })();

webapp/titanembeds/userbookkeeping.py

@@ -0,0 +1,179 @@
+from titanembeds.database import db, Guilds, UnauthenticatedUsers, UnauthenticatedBans, AuthenticatedUsers, GuildMembers, get_guild_member
+from titanembeds.utils import guild_accepts_visitors, guild_query_unauth_users_bool, get_client_ipaddr
+from titanembeds.oauth import check_user_can_administrate_guild, user_has_permission
+from flask import session
+from sqlalchemy import and_
+import json
+
+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
+
+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)
+    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'] == "text":
+            result = {"channel": channel, "read": False, "write": False, "mention_everyone": False}
+            if guild_owner == session.get("user_id"):
+                result["read"] = True
+                result["write"] = True
+                result["mention_everyone"] = True
+                result_channels.append(result)
+                continue
+            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
+                result_channels.append(result)
+                continue
+
+            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
+
+            result_channels.append(result)
+    return sorted(result_channels, key=lambda k: k['channel']['position'])