jiti-meet/prosody-plugins/mod_token_verification.lua

85 lines
2.5 KiB
Lua

-- Token authentication
-- Copyright (C) 2015 Atlassian
local log = module._log;
local host = module.host;
local st = require "util.stanza";
local is_admin = require "core.usermanager".is_admin;
local parentHostName = string.gmatch(tostring(host), "%w+.(%w.+)")();
if parentHostName == nil then
log("error", "Failed to start - unable to get parent hostname");
return;
end
local parentCtx = module:context(parentHostName);
if parentCtx == nil then
log("error",
"Failed to start - unable to get parent context for host: %s",
tostring(parentHostName));
return;
end
local appId = parentCtx:get_option_string("app_id");
local appSecret = parentCtx:get_option_string("app_secret");
local allowEmptyToken = parentCtx:get_option_boolean("allow_empty_token");
log("debug",
"%s - starting MUC token verifier app_id: %s app_secret: %s allow empty: %s",
tostring(host), tostring(appId), tostring(appSecret),
tostring(allowEmptyToken));
local function verify_user(session, stanza)
log("debug", "Session token: %s, session room: %s",
tostring(session.auth_token),
tostring(session.jitsi_meet_room));
if allowEmptyToken and session.auth_token == nil then
module:log(
"debug",
"Skipped room token verification - empty tokens are allowed");
return nil;
end
-- token not required for admin users
local user_jid = stanza.attr.from;
if is_admin(user_jid) then
log("debug", "Token not required from admin user: %s", user_jid);
return nil;
end
local room = string.match(stanza.attr.to, "^(%w+)@");
log("debug", "Will verify token for user: %s, room: %s ", user_jid, room);
if room == nil then
log("error",
"Unable to get name of the MUC room ? to: %s", stanza.attr.to);
return nil;
end
local token = session.auth_token;
local auth_room = session.jitsi_meet_room;
if room ~= auth_room then
log("error", "Token %s not allowed to join: %s",
tostring(token), tostring(auth_room));
session.send(
st.error_reply(
stanza, "cancel", "not-allowed", "Room and token mismatched"));
return true;
end
log("debug", "allowed: %s to enter/create room: %s", user_jid, room);
end
module:hook("muc-room-pre-create", function(event)
local origin, stanza = event.origin, event.stanza;
log("debug", "pre create: %s %s", tostring(origin), tostring(stanza));
return verify_user(origin, stanza);
end);
module:hook("muc-occupant-pre-join", function(event)
local origin, room, stanza = event.origin, event.room, event.stanza;
log("debug", "pre join: %s %s", tostring(room), tostring(stanza));
return verify_user(origin, stanza);
end);