-<?php\r
-\r
-/*\r
- * ejabberd extauth script for the integration with friendica\r
- *\r
- * Originally written for joomla by Dalibor Karlovic <dado@krizevci.info>\r
- * modified for Friendica by Michael Vogel <icarus@dabo.de>\r
- * published under GPL\r
- *\r
- * Latest version of the original script for joomla is available at:\r
- * http://87.230.15.86/~dado/ejabberd/joomla-login\r
- *\r
- * Installation:\r
- *\r
- * - Change it's owner to whichever user is running the server, ie. ejabberd\r
- * $ chown ejabberd:ejabberd /path/to/friendica/scripts/auth_ejabberd.php\r
- *\r
- * - Change the access mode so it is readable only to the user ejabberd and has exec\r
- * $ chmod 700 /path/to/friendica/scripts/auth_ejabberd.php\r
- *\r
- * - Edit your ejabberd.cfg file, comment out your auth_method and add:\r
- * {auth_method, external}.\r
- * {extauth_program, "/path/to/friendica/script/auth_ejabberd.php"}.\r
- *\r
- * - Restart your ejabberd service, you should be able to login with your friendica auth info\r
- *\r
- * Other hints:\r
- * - if your users have a space or a @ in their nickname, they'll run into trouble\r
- * registering with any client so they should be instructed to replace these chars\r
- * " " (space) is replaced with "%20"\r
- * "@" is replaced with "(a)"\r
- *\r
- */\r
-\r
-namespace Friendica\Util;\r
-\r
-use Friendica\Core\Config;\r
-use Friendica\Core\PConfig;\r
-use Friendica\Database\DBM;\r
-use Friendica\Model\User;\r
-use dba;\r
-\r
-require_once 'include/dba.php';\r
-\r
-class ExAuth\r
-{\r
- private $bDebug;\r
-\r
- /**\r
- * @brief Create the class\r
- *\r
- * @param boolean $bDebug Debug mode\r
- */\r
- public function __construct()\r
- {\r
- $this->bDebug = (int) Config::get('jabber', 'debug');\r
-\r
- openlog('auth_ejabberd', LOG_PID, LOG_USER);\r
-\r
- $this->writeLog(LOG_NOTICE, 'start');\r
- }\r
-\r
- /**\r
- * @brief Standard input reading function, executes the auth with the provided\r
- * parameters\r
- *\r
- * @return null\r
- */\r
- public function readStdin()\r
- {\r
- while (!feof(STDIN)) {\r
- // Quit if the database connection went down\r
- if (!dba::connected()) {\r
- $this->writeLog(LOG_ERR, 'the database connection went down');\r
- return;\r
- }\r
-\r
- $iHeader = fgets(STDIN, 3);\r
- $aLength = unpack('n', $iHeader);\r
- $iLength = $aLength['1'];\r
-\r
- // No data? Then quit\r
- if ($iLength == 0) {\r
- $this->writeLog(LOG_ERR, 'we got no data, quitting');\r
- return;\r
- }\r
-\r
- // Fetching the data\r
- $sData = fgets(STDIN, $iLength + 1);\r
- $this->writeLog(LOG_DEBUG, 'received data: ' . $sData);\r
- $aCommand = explode(':', $sData);\r
- if (is_array($aCommand)) {\r
- switch ($aCommand[0]) {\r
- case 'isuser':\r
- // Check the existance of a given username\r
- $this->isUser($aCommand);\r
- break;\r
- case 'auth':\r
- // Check if the givven password is correct\r
- $this->auth($aCommand);\r
- break;\r
- case 'setpass':\r
- // We don't accept the setting of passwords here\r
- $this->writeLog(LOG_NOTICE, 'setpass command disabled');\r
- fwrite(STDOUT, pack('nn', 2, 0));\r
- break;\r
- default:\r
- // We don't know the given command\r
- $this->writeLog(LOG_NOTICE, 'unknown command ' . $aCommand[0]);\r
- fwrite(STDOUT, pack('nn', 2, 0));\r
- break;\r
- }\r
- } else {\r
- $this->writeLog(LOG_NOTICE, 'invalid command string ' . $sData);\r
- fwrite(STDOUT, pack('nn', 2, 0));\r
- }\r
- }\r
- }\r
-\r
- /**\r
- * @brief Check if the given username exists\r
- *\r
- * @param array $aCommand The command array\r
- */\r
- private function isUser(array $aCommand)\r
- {\r
- $a = get_app();\r
-\r
- // Check if there is a username\r
- if (!isset($aCommand[1])) {\r
- $this->writeLog(LOG_NOTICE, 'invalid isuser command, no username given');\r
- fwrite(STDOUT, pack('nn', 2, 0));\r
- return;\r
- }\r
-\r
- // Now we check if the given user is valid\r
- $sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);\r
-\r
- // Does the hostname match? So we try directly\r
- if ($a->get_hostname() == $aCommand[2]) {\r
- $this->writeLog(LOG_INFO, 'internal user check for ' . $sUser . '@' . $aCommand[2]);\r
- $found = dba::exists('user', ['nickname' => $sUser]);\r
- } else {\r
- $found = false;\r
- }\r
-\r
- // If the hostnames doesn't match or there is some failure, we try to check remotely\r
- if (!$found) {\r
- $found = $this->checkUser($aCommand[2], $aCommand[1], true);\r
- }\r
-\r
- if ($found) {\r
- // The user is okay\r
- $this->writeLog(LOG_NOTICE, 'valid user: ' . $sUser);\r
- fwrite(STDOUT, pack('nn', 2, 1));\r
- } else {\r
- // The user isn't okay\r
- $this->writeLog(LOG_WARNING, 'invalid user: ' . $sUser);\r
- fwrite(STDOUT, pack('nn', 2, 0));\r
- }\r
- }\r
-\r
- /**\r
- * @brief Check remote user existance via HTTP(S)\r
- *\r
- * @param string $host The hostname\r
- * @param string $user Username\r
- * @param boolean $ssl Should the check be done via SSL?\r
- *\r
- * @return boolean Was the user found?\r
- */\r
- private function checkUser($host, $user, $ssl)\r
- {\r
- $this->writeLog(LOG_INFO, 'external user check for ' . $user . '@' . $host);\r
-\r
- $url = ($ssl ? 'https' : 'http') . '://' . $host . '/noscrape/' . $user;\r
-\r
- $data = z_fetch_url($url);\r
-\r
- if (!is_array($data)) {\r
- return false;\r
- }\r
-\r
- if ($data['return_code'] != '200') {\r
- return false;\r
- }\r
-\r
- $json = @json_decode($data['body']);\r
- if (!is_object($json)) {\r
- return false;\r
- }\r
-\r
- return $json->nick == $user;\r
- }\r
-\r
- /**\r
- * @brief Authenticate the given user and password\r
- *\r
- * @param array $aCommand The command array\r
- */\r
- private function auth(array $aCommand)\r
- {\r
- $a = get_app();\r
-\r
- // check user authentication\r
- if (sizeof($aCommand) != 4) {\r
- $this->writeLog(LOG_NOTICE, 'invalid auth command, data missing');\r
- fwrite(STDOUT, pack('nn', 2, 0));\r
- return;\r
- }\r
-\r
- // We now check if the password match\r
- $sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);\r
-\r
- // Does the hostname match? So we try directly\r
- if ($a->get_hostname() == $aCommand[2]) {\r
- $this->writeLog(LOG_INFO, 'internal auth for ' . $sUser . '@' . $aCommand[2]);\r
-\r
- $aUser = dba::select('user', ['uid', 'password'], ['nickname' => $sUser], ['limit' => 1]);\r
- if (DBM::is_result($aUser)) {\r
- $uid = User::authenticate($aUser, $aCommand[3]);\r
- $Error = $uid === false;\r
- } else {\r
- $this->writeLog(LOG_WARNING, 'user not found: ' . $sUser);\r
- $Error = true;\r
- $uid = -1;\r
- }\r
- if ($Error) {\r
- $this->writeLog(LOG_INFO, 'check against alternate password for ' . $sUser . '@' . $aCommand[2]);\r
- $sPassword = PConfig::get($uid, 'xmpp', 'password', null, true);\r
- $Error = ($aCommand[3] != $sPassword);\r
- }\r
- } else {\r
- $Error = true;\r
- }\r
-\r
- // If the hostnames doesn't match or there is some failure, we try to check remotely\r
- if ($Error) {\r
- $Error = !$this->checkCredentials($aCommand[2], $aCommand[1], $aCommand[3], true);\r
- }\r
-\r
- if ($Error) {\r
- $this->writeLog(LOG_WARNING, 'authentification failed for user ' . $sUser . '@' . $aCommand[2]);\r
- fwrite(STDOUT, pack('nn', 2, 0));\r
- } else {\r
- $this->writeLog(LOG_NOTICE, 'authentificated user ' . $sUser . '@' . $aCommand[2]);\r
- fwrite(STDOUT, pack('nn', 2, 1));\r
- }\r
- }\r
-\r
- /**\r
- * @brief Check remote credentials via HTTP(S)\r
- *\r
- * @param string $host The hostname\r
- * @param string $user Username\r
- * @param string $password Password\r
- * @param boolean $ssl Should the check be done via SSL?\r
- *\r
- * @return boolean Are the credentials okay?\r
- */\r
- private function checkCredentials($host, $user, $password, $ssl)\r
- {\r
- $url = ($ssl ? 'https' : 'http') . '://' . $host . '/api/account/verify_credentials.json';\r
-\r
- $ch = curl_init();\r
- curl_setopt($ch, CURLOPT_URL, $url);\r
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);\r
- curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);\r
- curl_setopt($ch, CURLOPT_HEADER, true);\r
- curl_setopt($ch, CURLOPT_NOBODY, true);\r
- curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);\r
- curl_setopt($ch, CURLOPT_USERPWD, $user . ':' . $password);\r
-\r
- curl_exec($ch);\r
- $curl_info = @curl_getinfo($ch);\r
- $http_code = $curl_info['http_code'];\r
- curl_close($ch);\r
-\r
- $this->writeLog(LOG_INFO, 'external auth for ' . $user . '@' . $host . ' returned ' . $http_code);\r
-\r
- return $http_code == 200;\r
- }\r
-\r
- /**\r
- * @brief write data to the syslog\r
- *\r
- * @param integer $loglevel The syslog loglevel\r
- * @param string $sMessage The syslog message\r
- */\r
- private function writeLog($loglevel, $sMessage)\r
- {\r
- if (!$this->bDebug && ($loglevel >= LOG_DEBUG)) {\r
- return;\r
- }\r
- syslog($loglevel, $sMessage);\r
- }\r
-\r
- /**\r
- * @brief destroy the class, close the syslog connection.\r
- */\r
- public function __destruct()\r
- {\r
- $this->writeLog(LOG_NOTICE, 'stop');\r
- closelog();\r
- }\r
-}\r
+<?php
+
+/*
+ * ejabberd extauth script for the integration with friendica
+ *
+ * Originally written for joomla by Dalibor Karlovic <dado@krizevci.info>
+ * modified for Friendica by Michael Vogel <icarus@dabo.de>
+ * published under GPL
+ *
+ * Latest version of the original script for joomla is available at:
+ * http://87.230.15.86/~dado/ejabberd/joomla-login
+ *
+ * Installation:
+ *
+ * - Change it's owner to whichever user is running the server, ie. ejabberd
+ * $ chown ejabberd:ejabberd /path/to/friendica/scripts/auth_ejabberd.php
+ *
+ * - Change the access mode so it is readable only to the user ejabberd and has exec
+ * $ chmod 700 /path/to/friendica/scripts/auth_ejabberd.php
+ *
+ * - Edit your ejabberd.cfg file, comment out your auth_method and add:
+ * {auth_method, external}.
+ * {extauth_program, "/path/to/friendica/script/auth_ejabberd.php"}.
+ *
+ * - Restart your ejabberd service, you should be able to login with your friendica auth info
+ *
+ * Other hints:
+ * - if your users have a space or a @ in their nickname, they'll run into trouble
+ * registering with any client so they should be instructed to replace these chars
+ * " " (space) is replaced with "%20"
+ * "@" is replaced with "(a)"
+ *
+ */
+
+namespace Friendica\Util;
+
+use Friendica\Core\Config;
+use Friendica\Core\PConfig;
+use Friendica\Database\DBM;
+use Friendica\Model\User;
+use dba;
+
+require_once 'include/dba.php';
+
+class ExAuth
+{
+ private $bDebug;
+ private $host;
+ private $pidfile;
+
+ /**
+ * @brief Create the class
+ *
+ * @param boolean $bDebug Debug mode
+ */
+ public function __construct()
+ {
+ $this->bDebug = (int) Config::get('jabber', 'debug');
+
+ openlog('auth_ejabberd', LOG_PID, LOG_USER);
+
+ $this->writeLog(LOG_NOTICE, 'start');
+ }
+
+ /**
+ * @brief Standard input reading function, executes the auth with the provided
+ * parameters
+ *
+ * @return null
+ */
+ public function readStdin()
+ {
+ while (!feof(STDIN)) {
+ // Quit if the database connection went down
+ if (!dba::connected()) {
+ $this->writeLog(LOG_ERR, 'the database connection went down');
+ return;
+ }
+
+ $iHeader = fgets(STDIN, 3);
+ $aLength = unpack('n', $iHeader);
+ $iLength = $aLength['1'];
+
+ // No data? Then quit
+ if ($iLength == 0) {
+ $this->writeLog(LOG_ERR, 'we got no data, quitting');
+ return;
+ }
+
+ // Fetching the data
+ $sData = fgets(STDIN, $iLength + 1);
+ $this->writeLog(LOG_DEBUG, 'received data: ' . $sData);
+ $aCommand = explode(':', $sData);
+ if (is_array($aCommand)) {
+ switch ($aCommand[0]) {
+ case 'isuser':
+ // Check the existance of a given username
+ $this->isUser($aCommand);
+ break;
+ case 'auth':
+ // Check if the givven password is correct
+ $this->auth($aCommand);
+ break;
+ case 'setpass':
+ // We don't accept the setting of passwords here
+ $this->writeLog(LOG_NOTICE, 'setpass command disabled');
+ fwrite(STDOUT, pack('nn', 2, 0));
+ break;
+ default:
+ // We don't know the given command
+ $this->writeLog(LOG_NOTICE, 'unknown command ' . $aCommand[0]);
+ fwrite(STDOUT, pack('nn', 2, 0));
+ break;
+ }
+ } else {
+ $this->writeLog(LOG_NOTICE, 'invalid command string ' . $sData);
+ fwrite(STDOUT, pack('nn', 2, 0));
+ }
+ }
+ }
+
+ /**
+ * @brief Check if the given username exists
+ *
+ * @param array $aCommand The command array
+ */
+ private function isUser(array $aCommand)
+ {
+ $a = get_app();
+
+ // Check if there is a username
+ if (!isset($aCommand[1])) {
+ $this->writeLog(LOG_NOTICE, 'invalid isuser command, no username given');
+ fwrite(STDOUT, pack('nn', 2, 0));
+ return;
+ }
+
+ // We only allow one process per hostname. So we set a lock file
+ // Problem: We get the firstname after the first auth - not before
+ $this->setHost($aCommand[2]);
+
+ // Now we check if the given user is valid
+ $sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);
+
+ // Does the hostname match? So we try directly
+ if ($a->get_hostname() == $aCommand[2]) {
+ $this->writeLog(LOG_INFO, 'internal user check for ' . $sUser . '@' . $aCommand[2]);
+ $found = dba::exists('user', ['nickname' => $sUser]);
+ } else {
+ $found = false;
+ }
+
+ // If the hostnames doesn't match or there is some failure, we try to check remotely
+ if (!$found) {
+ $found = $this->checkUser($aCommand[2], $aCommand[1], true);
+ }
+
+ if ($found) {
+ // The user is okay
+ $this->writeLog(LOG_NOTICE, 'valid user: ' . $sUser);
+ fwrite(STDOUT, pack('nn', 2, 1));
+ } else {
+ // The user isn't okay
+ $this->writeLog(LOG_WARNING, 'invalid user: ' . $sUser);
+ fwrite(STDOUT, pack('nn', 2, 0));
+ }
+ }
+
+ /**
+ * @brief Check remote user existance via HTTP(S)
+ *
+ * @param string $host The hostname
+ * @param string $user Username
+ * @param boolean $ssl Should the check be done via SSL?
+ *
+ * @return boolean Was the user found?
+ */
+ private function checkUser($host, $user, $ssl)
+ {
+ $this->writeLog(LOG_INFO, 'external user check for ' . $user . '@' . $host);
+
+ $url = ($ssl ? 'https' : 'http') . '://' . $host . '/noscrape/' . $user;
+
+ $data = z_fetch_url($url);
+
+ if (!is_array($data)) {
+ return false;
+ }
+
+ if ($data['return_code'] != '200') {
+ return false;
+ }
+
+ $json = @json_decode($data['body']);
+ if (!is_object($json)) {
+ return false;
+ }
+
+ return $json->nick == $user;
+ }
+
+ /**
+ * @brief Authenticate the given user and password
+ *
+ * @param array $aCommand The command array
+ */
+ private function auth(array $aCommand)
+ {
+ $a = get_app();
+
+ // check user authentication
+ if (sizeof($aCommand) != 4) {
+ $this->writeLog(LOG_NOTICE, 'invalid auth command, data missing');
+ fwrite(STDOUT, pack('nn', 2, 0));
+ return;
+ }
+
+ // We only allow one process per hostname. So we set a lock file
+ // Problem: We get the firstname after the first auth - not before
+ $this->setHost($aCommand[2]);
+
+ // We now check if the password match
+ $sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);
+
+ // Does the hostname match? So we try directly
+ if ($a->get_hostname() == $aCommand[2]) {
+ $this->writeLog(LOG_INFO, 'internal auth for ' . $sUser . '@' . $aCommand[2]);
+
+ $aUser = dba::select('user', ['uid', 'password'], ['nickname' => $sUser], ['limit' => 1]);
+ if (DBM::is_result($aUser)) {
+ $uid = User::authenticate($aUser, $aCommand[3]);
+ $Error = $uid === false;
+ } else {
+ $this->writeLog(LOG_WARNING, 'user not found: ' . $sUser);
+ $Error = true;
+ $uid = -1;
+ }
+ if ($Error) {
+ $this->writeLog(LOG_INFO, 'check against alternate password for ' . $sUser . '@' . $aCommand[2]);
+ $sPassword = PConfig::get($uid, 'xmpp', 'password', null, true);
+ $Error = ($aCommand[3] != $sPassword);
+ }
+ } else {
+ $Error = true;
+ }
+
+ // If the hostnames doesn't match or there is some failure, we try to check remotely
+ if ($Error) {
+ $Error = !$this->checkCredentials($aCommand[2], $aCommand[1], $aCommand[3], true);
+ }
+
+ if ($Error) {
+ $this->writeLog(LOG_WARNING, 'authentification failed for user ' . $sUser . '@' . $aCommand[2]);
+ fwrite(STDOUT, pack('nn', 2, 0));
+ } else {
+ $this->writeLog(LOG_NOTICE, 'authentificated user ' . $sUser . '@' . $aCommand[2]);
+ fwrite(STDOUT, pack('nn', 2, 1));
+ }
+ }
+
+ /**
+ * @brief Check remote credentials via HTTP(S)
+ *
+ * @param string $host The hostname
+ * @param string $user Username
+ * @param string $password Password
+ * @param boolean $ssl Should the check be done via SSL?
+ *
+ * @return boolean Are the credentials okay?
+ */
+ private function checkCredentials($host, $user, $password, $ssl)
+ {
+ $url = ($ssl ? 'https' : 'http') . '://' . $host . '/api/account/verify_credentials.json';
+
+ $ch = curl_init();
+ curl_setopt($ch, CURLOPT_URL, $url);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+ curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
+ curl_setopt($ch, CURLOPT_HEADER, true);
+ curl_setopt($ch, CURLOPT_NOBODY, true);
+ curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
+ curl_setopt($ch, CURLOPT_USERPWD, $user . ':' . $password);
+
+ curl_exec($ch);
+ $curl_info = @curl_getinfo($ch);
+ $http_code = $curl_info['http_code'];
+ curl_close($ch);
+
+ $this->writeLog(LOG_INFO, 'external auth for ' . $user . '@' . $host . ' returned ' . $http_code);
+
+ return $http_code == 200;
+ }
+
+ /**
+ * @brief Set the hostname for this process
+ *
+ * @param string $host The hostname
+ */
+ private function setHost($host)
+ {
+ if (!empty($this->host)) {
+ return;
+ }
+
+ $this->writeLog(LOG_INFO, 'Hostname for process ' . getmypid() . ' is ' . $host);
+
+ $this->host = $host;
+
+ $lockpath = Config::get('jabber', 'lockpath');
+ if (is_null($lockpath)) {
+ return;
+ }
+
+ $this->pidfile = new Pidfile($lockpath, $host);
+ if ($this->pidfile->isRunning()) {
+ $oldpid = $this->pidfile->pid();
+ $this->writeLog(LOG_INFO, 'Process ' . $oldpid . ' was running for ' . $this->pidfile->runningTime() . ' seconds and will now be killed');
+ $this->pidfile->kill();
+
+ // Wait until the other process is hopefully killed
+ sleep(2);
+
+ $this->pidfile = new Pidfile($lockpath, $host);
+ if ($oldpid == $this->pidfile->pid()) {
+ $this->writeLog(LOG_ERR, 'Process ' . $oldpid . "wasn't killed in time. We now quit our process.");
+ die();
+ }
+ }
+ }
+
+ /**
+ * @brief write data to the syslog
+ *
+ * @param integer $loglevel The syslog loglevel
+ * @param string $sMessage The syslog message
+ */
+ private function writeLog($loglevel, $sMessage)
+ {
+ if (!$this->bDebug && ($loglevel >= LOG_DEBUG)) {
+ return;
+ }
+ syslog($loglevel, $sMessage);
+ }
+
+ /**
+ * @brief destroy the class, close the syslog connection.
+ */
+ public function __destruct()
+ {
+ $this->writeLog(LOG_NOTICE, 'stop');
+ closelog();
+ }
+}
projects / friendica.git / commitdiff