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-- 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);
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