mod_pep: Wipe pubsub service on user deletion
Data is already wiped from storage, but this ensures everything is
properly unsubscribed, possibly with notifications etc.
Clears recipient cache as well, since it is no longer relevant.
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
local usermanager = require "core.usermanager";
local new_sasl = require "util.sasl".new;
local saslprep = require "util.encodings".stringprep.saslprep;
local secure_equals = require "util.hashes".equals;
local log = module._log;
local host = module.host;
local accounts = module:open_store("accounts");
-- define auth provider
local provider = {};
function provider.test_password(username, password)
log("debug", "test password for user '%s'", username);
local credentials = accounts:get(username) or {};
password = saslprep(password);
if not password then
return nil, "Password fails SASLprep.";
end
if secure_equals(password, saslprep(credentials.password)) then
return true;
else
return nil, "Auth failed. Invalid username or password.";
end
end
function provider.get_password(username)
log("debug", "get_password for username '%s'", username);
return (accounts:get(username) or {}).password;
end
function provider.set_password(username, password)
log("debug", "set_password for username '%s'", username);
password = saslprep(password);
if not password then
return nil, "Password fails SASLprep.";
end
local account = accounts:get(username);
if account then
account.password = password;
return accounts:set(username, account);
end
return nil, "Account not available.";
end
function provider.user_exists(username)
local account = accounts:get(username);
if not account then
log("debug", "account not found for username '%s'", username);
return nil, "Auth failed. Invalid username";
end
return true;
end
function provider.users()
return accounts:users();
end
function provider.create_user(username, password)
password = saslprep(password);
if not password then
return nil, "Password fails SASLprep.";
end
return accounts:set(username, {password = password});
end
function provider.delete_user(username)
return accounts:set(username, nil);
end
function provider.get_sasl_handler()
local getpass_authentication_profile = {
plain = function(_, username, realm)
local password = usermanager.get_password(username, realm);
if not password then
return "", nil;
end
return password, true;
end
};
return new_sasl(host, getpass_authentication_profile);
end
module:provides("auth", provider);