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Merge pull request #1043 from MrPetovan/task/4140-ldap-logging 

[ldapauth] Rework authentication and add logging
pull/1046/head
Michael Vogel 2020-11-19 22:37:08 +01:00 committed by GitHub
parent 2f71df5429 b43dca5087
commit 63e105212c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 56 additions and 54 deletions
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104
ldapauth/ldapauth.php
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@ -56,6 +56,7 @@
use Friendica\Core\Hook;
use Friendica\Core\Logger;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Model\User;
use Friendica\Util\ConfigFileLoader;
@ -73,15 +74,12 @@ function ldapauth_load_config(\Friendica\App $a, ConfigFileLoader $loader)
function ldapauth_hook_authenticate($a, &$b)
{
if (ldapauth_authenticate($b['username'], $b['password'])) {
$results = get_existing_account($b['username']);
if (!empty($results)) {
$b['user_record'] = $results[0];
$user = ldapauth_authenticate($b['username'], $b['password']);
if (!empty($user['uid'])) {
$b['user_record'] = User::getById($user['uid']);
$b['authenticated'] = 1;
}
}
return;
}
function ldapauth_authenticate($username, $password)
{
@ -95,41 +93,44 @@ function ldapauth_authenticate($username, $password)
$ldap_autocreateaccount_emailattribute = DI::config()->get('ldapauth', 'ldap_autocreateaccount_emailattribute');
$ldap_autocreateaccount_nameattribute = DI::config()->get('ldapauth', 'ldap_autocreateaccount_nameattribute');
if (!(strlen($password) && function_exists('ldap_connect') && strlen($ldap_server))) {
Logger::log("ldapauth: not configured or missing php-ldap module");
if (!extension_loaded('ldap') || !strlen($ldap_server)) {
Logger::error('Addon not configured or missing php-ldap extension', ['extension_loaded' => extension_loaded('ldap'), 'server' => $ldap_server]);
return false;
}
if (!strlen($password)) {
Logger::error('Empty password disallowed', ['provided_password_length' => strlen($password)]);
return false;
}
$connect = @ldap_connect($ldap_server);
if ($connect === false) {
Logger::log("ldapauth: could not connect to $ldap_server");
Logger::warning('Could not connect to LDAP server', ['server' => $ldap_server]);
return false;
}
@ldap_set_option($connect, LDAP_OPT_PROTOCOL_VERSION, 3);
@ldap_set_option($connect, LDAP_OPT_REFERRALS, 0);
if ((@ldap_bind($connect, $ldap_binddn, $ldap_bindpw)) === false) {
Logger::log("ldapauth: could not bind $ldap_server as $ldap_binddn");
Logger::warning('Could not bind to LDAP server', ['server' => $ldap_server, 'binddn' => $ldap_binddn, 'errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
return false;
}
$res = @ldap_search($connect, $ldap_searchdn, $ldap_userattr . '=' . $username);
if (!$res) {
Logger::log("ldapauth: $ldap_userattr=$username,$ldap_searchdn not found");
Logger::notice('LDAP user not found.', ['searchdn' => $ldap_searchdn, 'userattr' => $ldap_userattr, 'username' => $username, 'errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
return false;
}
$id = @ldap_first_entry($connect, $res);
if (!$id) {
Logger::notice('Could not retrieve first LDAP entry.', ['searchdn' => $ldap_searchdn, 'userattr' => $ldap_userattr, 'username' => $username, 'errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
return false;
}
$dn = @ldap_get_dn($connect, $id);
if (!@ldap_bind($connect, $dn, $password)) {
Logger::notice('Could not authenticate LDAP user with provided password', ['errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
return false;
}
@ -147,57 +148,58 @@ function ldapauth_authenticate($username, $password)
}
if (!strlen($ldap_group)) {
ldap_autocreateaccount($ldap_autocreateaccount, $username, $password, $emailarray[0], $namearray[0]);
ldap_createaccount($ldap_autocreateaccount, $username, $password, $emailarray[0], $namearray[0]);
return true;
}
$r = @ldap_compare($connect, $ldap_group, 'member', $dn);
if ($r === -1) {
$err = @ldap_error($connect);
$eno = @ldap_errno($connect);
@ldap_close($connect);
if ($eno === 32) {
Logger::log("ldapauth: access control group Does Not Exist");
return false;
} elseif ($eno === 16) {
Logger::log('ldapauth: membership attribute does not exist in access control group');
return false;
if ($r !== true) {
$errno = @ldap_errno($connect);
if ($errno === 32) {
Logger::notice('LDAP Access Control Group does not exist', ['errno' => $errno, 'error' => ldap_error($connect)]);
} elseif ($errno === 16) {
Logger::notice('LDAP membership attribute does not exist in access control group', ['errno' => $errno, 'error' => ldap_error($connect)]);
} else {
Logger::log('ldapauth: error: ' . $err);
return false;
Logger::notice('Unexpected LDAP error', ['errno' => $errno, 'error' => ldap_error($connect)]);
}
} elseif ($r === false) {
@ldap_close($connect);
return false;
}
ldap_autocreateaccount($ldap_autocreateaccount, $username, $password, $emailarray[0], $namearray[0]);
return true;
if ($ldap_autocreateaccount == "true" && !DBA::exists('user', ['nickname' => $username])) {
return ldap_createaccount($username, $password, $emailarray[0], $namearray[0]);
}
function ldap_autocreateaccount($ldap_autocreateaccount, $username, $password, $email, $name)
{
if ($ldap_autocreateaccount == "true") {
$results = get_existing_account($username);
if (empty($results)) {
if (strlen($email) > 0 && strlen($name) > 0) {
$arr = ['username' => $name, 'nickname' => $username, 'email' => $email, 'password' => $password, 'verified' => 1];
try {
User::create($arr);
Logger::log("ldapauth: account " . $username . " created");
} catch (Exception $ex) {
Logger::log("ldapauth: account " . $username . " was not created ! : " . $ex->getMessage());
}
} else {
Logger::log("ldapauth: unable to create account, no email or nickname found");
}
}
$authentication = User::getAuthenticationInfo($username);
return User::getById($authentication['uid']);
} catch (Exception $e) {
Logger::notice('LDAP authentication error: ' . $e->getMessage());
return false;
}
}
function get_existing_account($username)
function ldap_createaccount($username, $password, $email, $name)
{
return q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1", $username);
if (!strlen($email) || !strlen($name)) {
Logger::notice('Could not create local user from LDAP data, no email or nickname provided');
return false;
}
try {
$user = User::create([
'username' => $name,
'nickname' => $username,
'email' => $email,
'password' => $password,
'verified' => 1
]);
Logger::info('Local user created from LDAP data', ['username' => $username, 'name' => $name]);
return $user;
} catch (Exception $ex) {
Logger::error('Could not create local user from LDAP data', ['username' => $username, 'exception' => $ex->getMessage()]);
}
return false;
}