Move ExAuth class to src
- Move executed code to separate readStdin function
This commit is contained in:
Hypolite Petovan
parent
057984c69e
commit
93924ceac4
2 changed files with 326 additions and 270 deletions
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@ -1,4 +1,4 @@
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#!/usr/bin/php
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#!/usr/bin/env php
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<?php
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/*
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* ejabberd extauth script for the integration with friendica
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@ -33,18 +33,19 @@
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*/
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use Friendica\App;
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use Friendica\Core\Config;
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use Friendica\Database\DBM;
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use Friendica\Util\ExAuth;
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if (sizeof($_SERVER["argv"]) == 0)
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if (sizeof($_SERVER["argv"]) == 0) {
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die();
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}
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$directory = dirname($_SERVER["argv"][0]);
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if (substr($directory, 0, 1) != "/")
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$directory = $_SERVER["PWD"]."/".$directory;
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if (substr($directory, 0, 1) != DIRECTORY_SEPARATOR) {
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$directory = $_SERVER["PWD"] . DIRECTORY_SEPARATOR . $directory;
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}
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$directory = realpath($directory."/..");
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$directory = realpath($directory . DIRECTORY_SEPARATOR . "..");
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chdir($directory);
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@ -53,259 +54,10 @@ require_once "include/dba.php";
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$a = new App(dirname(__DIR__));
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@include(".htconfig.php");
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@include ".htconfig.php";
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dba::connect($db_host, $db_user, $db_pass, $db_data);
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unset($db_host, $db_user, $db_pass, $db_data);
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$oAuth = new exAuth();
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$oAuth = new ExAuth();
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class exAuth {
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private $bDebug;
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/**
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* @brief Create the class and do the authentification studd
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*
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* @param boolean $bDebug Debug mode
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*/
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public function __construct() {
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// setter
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$this->bDebug = (int)Config::get('jabber', 'debug');
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openlog('auth_ejabberd', LOG_PID, LOG_USER);
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$this->writeLog(LOG_NOTICE, "start");
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// We are connected to the SQL server.
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while (!feof(STDIN)) {
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// Quit if the database connection went down
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if (!dba::connected()) {
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$this->writeLog(LOG_ERR, "the database connection went down");
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return;
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}
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$iHeader = fgets(STDIN, 3);
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$aLength = unpack("n", $iHeader);
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$iLength = $aLength["1"];
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// No data? Then quit
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if ($iLength == 0) {
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$this->writeLog(LOG_ERR, "we got no data, quitting");
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return;
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}
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// Fetching the data
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$sData = fgets(STDIN, $iLength + 1);
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$this->writeLog(LOG_DEBUG, "received data: ". $sData);
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$aCommand = explode(":", $sData);
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if (is_array($aCommand)) {
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switch ($aCommand[0]) {
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case "isuser":
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// Check the existance of a given username
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$this->isuser($aCommand);
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break;
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case "auth":
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// Check if the givven password is correct
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$this->auth($aCommand);
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break;
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case "setpass":
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// We don't accept the setting of passwords here
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$this->writeLog(LOG_NOTICE, "setpass command disabled");
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fwrite(STDOUT, pack("nn", 2, 0));
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break;
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default:
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// We don't know the given command
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$this->writeLog(LOG_NOTICE, "unknown command ". $aCommand[0]);
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fwrite(STDOUT, pack("nn", 2, 0));
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break;
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}
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} else {
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$this->writeLog(LOG_NOTICE, "invalid command string ".$sData);
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fwrite(STDOUT, pack("nn", 2, 0));
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}
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}
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}
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/**
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* @brief Check if the given username exists
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*
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* @param array $aCommand The command array
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*/
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private function isuser($aCommand) {
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$a = get_app();
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// Check if there is a username
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if (!isset($aCommand[1])) {
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$this->writeLog(LOG_NOTICE, "invalid isuser command, no username given");
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fwrite(STDOUT, pack("nn", 2, 0));
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return;
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}
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// Now we check if the given user is valid
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$sUser = str_replace(array("%20", "(a)"), array(" ", "@"), $aCommand[1]);
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// Does the hostname match? So we try directly
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if ($a->get_hostname() == $aCommand[2]) {
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$this->writeLog(LOG_INFO, "internal user check for ". $sUser."@".$aCommand[2]);
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$sQuery = "SELECT `uid` FROM `user` WHERE `nickname`='".dbesc($sUser)."'";
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$this->writeLog(LOG_DEBUG, "using query ". $sQuery);
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$r = q($sQuery);
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$found = DBM::is_result($r);
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} else {
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$found = false;
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}
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// If the hostnames doesn't match or there is some failure, we try to check remotely
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if (!$found) {
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$found = $this->check_user($aCommand[2], $aCommand[1], true);
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}
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if ($found) {
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// The user is okay
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$this->writeLog(LOG_NOTICE, "valid user: ". $sUser);
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fwrite(STDOUT, pack("nn", 2, 1));
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} else {
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// The user isn't okay
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$this->writeLog(LOG_WARNING, "invalid user: ". $sUser);
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fwrite(STDOUT, pack("nn", 2, 0));
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}
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}
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/**
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* @brief Check remote user existance via HTTP(S)
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*
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* @param string $host The hostname
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* @param string $user Username
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* @param boolean $ssl Should the check be done via SSL?
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*
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* @return boolean Was the user found?
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*/
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private function check_user($host, $user, $ssl) {
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$this->writeLog(LOG_INFO, "external user check for ".$user."@".$host);
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$url = ($ssl ? "https":"http")."://".$host."/noscrape/".$user;
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$data = z_fetch_url($url);
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if (!is_array($data))
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return(false);
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if ($data["return_code"] != "200")
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return(false);
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$json = @json_decode($data["body"]);
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if (!is_object($json))
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return(false);
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return($json->nick == $user);
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}
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/**
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* @brief Authenticate the givven user and password
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*
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* @param array $aCommand The command array
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*/
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private function auth($aCommand) {
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$a = get_app();
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// check user authentication
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if (sizeof($aCommand) != 4) {
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$this->writeLog(LOG_NOTICE, "invalid auth command, data missing");
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fwrite(STDOUT, pack("nn", 2, 0));
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return;
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}
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// We now check if the password match
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$sUser = str_replace(array("%20", "(a)"), array(" ", "@"), $aCommand[1]);
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// Does the hostname match? So we try directly
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if ($a->get_hostname() == $aCommand[2]) {
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$this->writeLog(LOG_INFO, "internal auth for ".$sUser."@".$aCommand[2]);
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$sQuery = "SELECT `uid`, `password` FROM `user` WHERE `nickname`='".dbesc($sUser)."'";
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$this->writeLog(LOG_DEBUG, "using query ". $sQuery);
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if ($oResult = q($sQuery)) {
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$uid = $oResult[0]["uid"];
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$Error = ($oResult[0]["password"] != hash('whirlpool',$aCommand[3]));
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} else {
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$this->writeLog(LOG_WARNING, "invalid query: ". $sQuery);
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$Error = true;
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$uid = -1;
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}
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if ($Error) {
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$oConfig = q("SELECT `v` FROM `pconfig` WHERE `uid` = %d AND `cat` = 'xmpp' AND `k`='password' LIMIT 1;", intval($uid));
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$this->writeLog(LOG_INFO, "check against alternate password for ".$sUser."@".$aCommand[2]);
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$Error = ($aCommand[3] != $oConfig[0]["v"]);
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}
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} else {
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$Error = true;
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}
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// If the hostnames doesn't match or there is some failure, we try to check remotely
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if ($Error) {
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$Error = !$this->check_credentials($aCommand[2], $aCommand[1], $aCommand[3], true);
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}
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if ($Error) {
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$this->writeLog(LOG_WARNING, "authentification failed for user ".$sUser."@". $aCommand[2]);
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fwrite(STDOUT, pack("nn", 2, 0));
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} else {
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$this->writeLog(LOG_NOTICE, "authentificated user ".$sUser."@".$aCommand[2]);
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fwrite(STDOUT, pack("nn", 2, 1));
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}
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}
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/**
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* @brief Check remote credentials via HTTP(S)
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*
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* @param string $host The hostname
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* @param string $user Username
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* @param string $password Password
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* @param boolean $ssl Should the check be done via SSL?
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*
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* @return boolean Are the credentials okay?
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*/
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private function check_credentials($host, $user, $password, $ssl) {
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$url = ($ssl ? "https":"http")."://".$host."/api/account/verify_credentials.json";
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
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curl_setopt($ch, CURLOPT_HEADER, true);
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curl_setopt($ch, CURLOPT_NOBODY, true);
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curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
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curl_setopt($ch, CURLOPT_USERPWD, $user.':'.$password);
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$header = curl_exec($ch);
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$curl_info = @curl_getinfo($ch);
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$http_code = $curl_info["http_code"];
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curl_close($ch);
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$this->writeLog(LOG_INFO, "external auth for ".$user."@".$host." returned ".$http_code);
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return ($http_code == 200);
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}
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/**
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* @brief write data to the syslog
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*
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* @param integer $loglevel The syslog loglevel
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* @param string $sMessage The syslog message
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*/
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private function writeLog($loglevel, $sMessage) {
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if (!$this->bDebug && ($loglevel >= LOG_DEBUG)) {
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return;
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}
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syslog($loglevel, $sMessage);
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}
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/**
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* @brief destroy the class, close the syslog connection.
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*/
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public function __destruct() {
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$this->writeLog(LOG_NOTICE, "stop");
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closelog();
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}
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}
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$oAuth->readStdin();
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304
src/Util/ExAuth.php
Normal file
304
src/Util/ExAuth.php
Normal file
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@ -0,0 +1,304 @@
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<?php
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/*
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* ejabberd extauth script for the integration with friendica
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*
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* Originally written for joomla by Dalibor Karlovic <dado@krizevci.info>
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* modified for Friendica by Michael Vogel <icarus@dabo.de>
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* published under GPL
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*
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* Latest version of the original script for joomla is available at:
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* http://87.230.15.86/~dado/ejabberd/joomla-login
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*
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* Installation:
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*
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* - Change it's owner to whichever user is running the server, ie. ejabberd
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* $ chown ejabberd:ejabberd /path/to/friendica/scripts/auth_ejabberd.php
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*
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* - Change the access mode so it is readable only to the user ejabberd and has exec
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* $ chmod 700 /path/to/friendica/scripts/auth_ejabberd.php
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*
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* - Edit your ejabberd.cfg file, comment out your auth_method and add:
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* {auth_method, external}.
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* {extauth_program, "/path/to/friendica/script/auth_ejabberd.php"}.
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*
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* - Restart your ejabberd service, you should be able to login with your friendica auth info
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*
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* Other hints:
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* - if your users have a space or a @ in their nickname, they'll run into trouble
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* registering with any client so they should be instructed to replace these chars
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* " " (space) is replaced with "%20"
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* "@" is replaced with "(a)"
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*
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*/
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namespace Friendica\Util;
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use Friendica\Core\Config;
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use Friendica\Core\PConfig;
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use Friendica\Database\DBM;
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require_once 'include/dba.php';
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class ExAuth
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{
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private $bDebug;
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/**
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* @brief Create the class
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*
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* @param boolean $bDebug Debug mode
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*/
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public function __construct()
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{
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$this->bDebug = (int) Config::get('jabber', 'debug');
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openlog('auth_ejabberd', LOG_PID, LOG_USER);
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$this->writeLog(LOG_NOTICE, 'start');
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}
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/**
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* @brief Standard input reading function, executes the auth with the provided
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* parameters
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*
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* @return null
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*/
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public function readStdin()
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{
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while (!feof(STDIN)) {
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// Quit if the database connection went down
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if (!dba::connected()) {
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$this->writeLog(LOG_ERR, 'the database connection went down');
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return;
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}
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$iHeader = fgets(STDIN, 3);
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$aLength = unpack('n', $iHeader);
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$iLength = $aLength['1'];
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// No data? Then quit
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if ($iLength == 0) {
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$this->writeLog(LOG_ERR, 'we got no data, quitting');
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return;
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}
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// Fetching the data
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$sData = fgets(STDIN, $iLength + 1);
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$this->writeLog(LOG_DEBUG, 'received data: ' . $sData);
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$aCommand = explode(':', $sData);
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if (is_array($aCommand)) {
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switch ($aCommand[0]) {
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case 'isuser':
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// Check the existance of a given username
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$this->isUser($aCommand);
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break;
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case 'auth':
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// Check if the givven password is correct
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$this->auth($aCommand);
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break;
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case 'setpass':
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// We don't accept the setting of passwords here
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$this->writeLog(LOG_NOTICE, 'setpass command disabled');
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fwrite(STDOUT, pack('nn', 2, 0));
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break;
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default:
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// We don't know the given command
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$this->writeLog(LOG_NOTICE, 'unknown command ' . $aCommand[0]);
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fwrite(STDOUT, pack('nn', 2, 0));
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break;
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}
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} else {
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$this->writeLog(LOG_NOTICE, 'invalid command string ' . $sData);
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fwrite(STDOUT, pack('nn', 2, 0));
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}
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}
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}
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/**
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* @brief Check if the given username exists
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*
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* @param array $aCommand The command array
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*/
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private function isUser(array $aCommand)
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{
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$a = get_app();
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// Check if there is a username
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if (!isset($aCommand[1])) {
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$this->writeLog(LOG_NOTICE, 'invalid isuser command, no username given');
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fwrite(STDOUT, pack('nn', 2, 0));
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return;
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}
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// Now we check if the given user is valid
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$sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);
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// Does the hostname match? So we try directly
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if ($a->get_hostname() == $aCommand[2]) {
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$this->writeLog(LOG_INFO, 'internal user check for ' . $sUser . '@' . $aCommand[2]);
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$found = dba::exists('user', ['nickname' => $sUser]);
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} else {
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$found = false;
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}
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// If the hostnames doesn't match or there is some failure, we try to check remotely
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if (!$found) {
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$found = $this->checkUser($aCommand[2], $aCommand[1], true);
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}
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if ($found) {
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// The user is okay
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$this->writeLog(LOG_NOTICE, 'valid user: ' . $sUser);
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fwrite(STDOUT, pack('nn', 2, 1));
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} else {
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// The user isn't okay
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$this->writeLog(LOG_WARNING, 'invalid user: ' . $sUser);
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fwrite(STDOUT, pack('nn', 2, 0));
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}
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}
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/**
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* @brief Check remote user existance via HTTP(S)
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*
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* @param string $host The hostname
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* @param string $user Username
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* @param boolean $ssl Should the check be done via SSL?
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*
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* @return boolean Was the user found?
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*/
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private function checkUser($host, $user, $ssl)
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{
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$this->writeLog(LOG_INFO, 'external user check for ' . $user . '@' . $host);
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$url = ($ssl ? 'https' : 'http') . '://' . $host . '/noscrape/' . $user;
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$data = z_fetch_url($url);
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if (!is_array($data)) {
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return false;
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}
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if ($data['return_code'] != '200') {
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return false;
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}
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|
||||
$json = @json_decode($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 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 = $aUser['uid'];
|
||||
$Error = $aUser['password'] != hash('whirlpool', $aCommand[3]);
|
||||
} 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');
|
||||
$Error = ($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 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();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue