forked from friendica/friendica-addons
[ldapauth] Rework authentication and add logging
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@ -56,6 +56,7 @@
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use Friendica\Core\Hook;
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use Friendica\Core\Logger;
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use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Model\User;
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use Friendica\Util\ConfigFileLoader;
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@ -73,14 +74,11 @@ function ldapauth_load_config(\Friendica\App $a, ConfigFileLoader $loader)
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function ldapauth_hook_authenticate($a, &$b)
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{
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if (ldapauth_authenticate($b['username'], $b['password'])) {
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$results = get_existing_account($b['username']);
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if (!empty($results)) {
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$b['user_record'] = $results[0];
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$user = ldapauth_authenticate($b['username'], $b['password']);
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if (!empty($user['uid'])) {
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$b['user_record'] = User::getById($user['uid']);
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$b['authenticated'] = 1;
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}
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}
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return;
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}
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function ldapauth_authenticate($username, $password)
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@ -95,41 +93,44 @@ function ldapauth_authenticate($username, $password)
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$ldap_autocreateaccount_emailattribute = DI::config()->get('ldapauth', 'ldap_autocreateaccount_emailattribute');
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$ldap_autocreateaccount_nameattribute = DI::config()->get('ldapauth', 'ldap_autocreateaccount_nameattribute');
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if (!(strlen($password) && function_exists('ldap_connect') && strlen($ldap_server))) {
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Logger::log("ldapauth: not configured or missing php-ldap module");
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if (!extension_loaded('ldap') || !strlen($ldap_server)) {
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Logger::error('Addon not configured or missing php-ldap extension', ['extension_loaded' => extension_loaded('ldap'), 'server' => $ldap_server]);
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return false;
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}
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if (!strlen($password)) {
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Logger::error('Empty password disallowed', ['provided_password_length' => strlen($password)]);
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return false;
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}
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$connect = @ldap_connect($ldap_server);
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if ($connect === false) {
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Logger::log("ldapauth: could not connect to $ldap_server");
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Logger::warning('Could not connect to LDAP server', ['server' => $ldap_server]);
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return false;
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}
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@ldap_set_option($connect, LDAP_OPT_PROTOCOL_VERSION, 3);
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@ldap_set_option($connect, LDAP_OPT_REFERRALS, 0);
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if ((@ldap_bind($connect, $ldap_binddn, $ldap_bindpw)) === false) {
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Logger::log("ldapauth: could not bind $ldap_server as $ldap_binddn");
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Logger::warning('Could not bind to LDAP server', ['server' => $ldap_server, 'binddn' => $ldap_binddn, 'errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
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return false;
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}
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$res = @ldap_search($connect, $ldap_searchdn, $ldap_userattr . '=' . $username);
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if (!$res) {
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Logger::log("ldapauth: $ldap_userattr=$username,$ldap_searchdn not found");
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Logger::notice('LDAP user not found.', ['searchdn' => $ldap_searchdn, 'userattr' => $ldap_userattr, 'username' => $username, 'errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
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return false;
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}
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$id = @ldap_first_entry($connect, $res);
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if (!$id) {
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Logger::notice('Could not retrieve first LDAP entry.', ['searchdn' => $ldap_searchdn, 'userattr' => $ldap_userattr, 'username' => $username, 'errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
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return false;
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}
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$dn = @ldap_get_dn($connect, $id);
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if (!@ldap_bind($connect, $dn, $password)) {
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Logger::notice('Could not authenticate LDAP user with provided password', ['errno' => ldap_errno($connect), 'error' => ldap_error($connect)]);
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return false;
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}
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@ -147,57 +148,58 @@ function ldapauth_authenticate($username, $password)
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}
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if (!strlen($ldap_group)) {
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ldap_autocreateaccount($ldap_autocreateaccount, $username, $password, $emailarray[0], $namearray[0]);
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ldap_createaccount($ldap_autocreateaccount, $username, $password, $emailarray[0], $namearray[0]);
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return true;
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}
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$r = @ldap_compare($connect, $ldap_group, 'member', $dn);
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if ($r === -1) {
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$err = @ldap_error($connect);
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$eno = @ldap_errno($connect);
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@ldap_close($connect);
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if ($eno === 32) {
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Logger::log("ldapauth: access control group Does Not Exist");
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return false;
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} elseif ($eno === 16) {
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Logger::log('ldapauth: membership attribute does not exist in access control group');
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return false;
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if ($r !== true) {
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$errno = @ldap_errno($connect);
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if ($errno === 32) {
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Logger::notice('LDAP Access Control Group does not exist', ['errno' => $errno, 'error' => ldap_error($connect)]);
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} elseif ($errno === 16) {
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Logger::notice('LDAP membership attribute does not exist in access control group', ['errno' => $errno, 'error' => ldap_error($connect)]);
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} else {
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Logger::log('ldapauth: error: ' . $err);
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return false;
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Logger::notice('Unexpected LDAP error', ['errno' => $errno, 'error' => ldap_error($connect)]);
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}
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} elseif ($r === false) {
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@ldap_close($connect);
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return false;
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}
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ldap_autocreateaccount($ldap_autocreateaccount, $username, $password, $emailarray[0], $namearray[0]);
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return true;
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}
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function ldap_autocreateaccount($ldap_autocreateaccount, $username, $password, $email, $name)
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{
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if ($ldap_autocreateaccount == "true") {
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$results = get_existing_account($username);
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if (empty($results)) {
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if (strlen($email) > 0 && strlen($name) > 0) {
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$arr = ['username' => $name, 'nickname' => $username, 'email' => $email, 'password' => $password, 'verified' => 1];
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if ($ldap_autocreateaccount == "true" && !DBA::exists('user', ['nickname' => $username])) {
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return ldap_createaccount($username, $password, $emailarray[0], $namearray[0]);
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}
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try {
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User::create($arr);
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Logger::log("ldapauth: account " . $username . " created");
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} catch (Exception $ex) {
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Logger::log("ldapauth: account " . $username . " was not created ! : " . $ex->getMessage());
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}
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} else {
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Logger::log("ldapauth: unable to create account, no email or nickname found");
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}
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}
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$authentication = User::getAuthenticationInfo($username);
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return User::getById($authentication['uid']);
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} catch (Exception $e) {
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Logger::notice('LDAP authentication error: ' . $e->getMessage());
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return false;
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}
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}
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function get_existing_account($username)
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function ldap_createaccount($username, $password, $email, $name)
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{
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return q("SELECT * FROM `user` WHERE `nickname` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1", $username);
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if (!strlen($email) || !strlen($name)) {
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Logger::notice('Could not create local user from LDAP data, no email or nickname provided');
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return false;
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}
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try {
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$user = User::create([
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'username' => $name,
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'nickname' => $username,
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'email' => $email,
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'password' => $password,
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'verified' => 1
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]);
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Logger::info('Local user created from LDAP data', ['username' => $username, 'name' => $name]);
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return $user;
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} catch (Exception $ex) {
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Logger::error('Could not create local user from LDAP data', ['username' => $username, 'exception' => $ex->getMessage()]);
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}
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return false;
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}
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