Merge pull request #4044 from annando/ejabberd-lock
Prevent the running of multiple xmpp auth daemons at a time
This commit is contained in:
Hypolite Petovan
GitHub
commit
33ccd501b9
3 changed files with 435 additions and 353 deletions
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@ -19,6 +19,7 @@ Example: To set the directory value please add this line to your .htconfig.php:
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## jabber ##
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## jabber ##
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* **debug** (Boolean) - Enable debug level for the jabber account synchronisation.
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* **debug** (Boolean) - Enable debug level for the jabber account synchronisation.
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* **lockpath** - Must be writable by the ejabberd process. if set then it will prevent the running of multiple processes.
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## system ##
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## system ##
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@ -1,306 +1,351 @@
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<?php
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<?php
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/*
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/*
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* ejabberd extauth script for the integration with friendica
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* ejabberd extauth script for the integration with friendica
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*
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*
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* Originally written for joomla by Dalibor Karlovic <dado@krizevci.info>
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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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* modified for Friendica by Michael Vogel <icarus@dabo.de>
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* published under GPL
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* published under GPL
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*
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*
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* Latest version of the original script for joomla is available at:
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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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* http://87.230.15.86/~dado/ejabberd/joomla-login
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*
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*
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* Installation:
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* Installation:
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*
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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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* - 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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* $ chown ejabberd:ejabberd /path/to/friendica/scripts/auth_ejabberd.php
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*
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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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* - 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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* $ chmod 700 /path/to/friendica/scripts/auth_ejabberd.php
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*
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*
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* - Edit your ejabberd.cfg file, comment out your auth_method and add:
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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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* {auth_method, external}.
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* {extauth_program, "/path/to/friendica/script/auth_ejabberd.php"}.
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* {extauth_program, "/path/to/friendica/script/auth_ejabberd.php"}.
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*
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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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* - Restart your ejabberd service, you should be able to login with your friendica auth info
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*
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*
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* Other hints:
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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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* - 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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* 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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* " " (space) is replaced with "%20"
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* "@" is replaced with "(a)"
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* "@" is replaced with "(a)"
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*
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*
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*/
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*/
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namespace Friendica\Util;
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namespace Friendica\Util;
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use Friendica\Core\Config;
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use Friendica\Core\Config;
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use Friendica\Core\PConfig;
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use Friendica\Core\PConfig;
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use Friendica\Database\DBM;
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use Friendica\Database\DBM;
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use Friendica\Model\User;
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use Friendica\Model\User;
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use dba;
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use dba;
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require_once 'include/dba.php';
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require_once 'include/dba.php';
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class ExAuth
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class ExAuth
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{
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{
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private $bDebug;
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private $bDebug;
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private $host;
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/**
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* @brief Create the class
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/**
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*
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* @brief Create the class
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* @param boolean $bDebug Debug mode
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*
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*/
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* @param boolean $bDebug Debug mode
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public function __construct()
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*/
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{
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public function __construct()
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$this->bDebug = (int) Config::get('jabber', 'debug');
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{
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$this->bDebug = (int) Config::get('jabber', 'debug');
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openlog('auth_ejabberd', LOG_PID, LOG_USER);
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openlog('auth_ejabberd', LOG_PID, LOG_USER);
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$this->writeLog(LOG_NOTICE, 'start');
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}
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$this->writeLog(LOG_NOTICE, 'start');
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}
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/**
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* @brief Standard input reading function, executes the auth with the provided
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/**
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* parameters
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* @brief Standard input reading function, executes the auth with the provided
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*
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* parameters
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* @return null
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*
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*/
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* @return null
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public function readStdin()
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*/
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{
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public function readStdin()
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while (!feof(STDIN)) {
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{
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// Quit if the database connection went down
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while (!feof(STDIN)) {
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if (!dba::connected()) {
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// Quit if the database connection went down
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$this->writeLog(LOG_ERR, 'the database connection went down');
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if (!dba::connected()) {
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return;
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$this->writeLog(LOG_ERR, 'the database connection went down');
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}
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return;
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}
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$iHeader = fgets(STDIN, 3);
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$aLength = unpack('n', $iHeader);
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$iHeader = fgets(STDIN, 3);
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$iLength = $aLength['1'];
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$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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// No data? Then quit
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$this->writeLog(LOG_ERR, 'we got no data, quitting');
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if ($iLength == 0) {
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return;
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$this->writeLog(LOG_ERR, 'we got no data, quitting');
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}
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return;
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}
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// Fetching the data
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$sData = fgets(STDIN, $iLength + 1);
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// Fetching the data
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$this->writeLog(LOG_DEBUG, 'received data: ' . $sData);
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$sData = fgets(STDIN, $iLength + 1);
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$aCommand = explode(':', $sData);
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$this->writeLog(LOG_DEBUG, 'received data: ' . $sData);
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if (is_array($aCommand)) {
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$aCommand = explode(':', $sData);
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switch ($aCommand[0]) {
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if (is_array($aCommand)) {
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case 'isuser':
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switch ($aCommand[0]) {
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// Check the existance of a given username
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case 'isuser':
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$this->isUser($aCommand);
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// Check the existance of a given username
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break;
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$this->isUser($aCommand);
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case 'auth':
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break;
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// Check if the givven password is correct
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case 'auth':
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$this->auth($aCommand);
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// Check if the givven password is correct
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break;
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$this->auth($aCommand);
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case 'setpass':
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break;
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// We don't accept the setting of passwords here
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case 'setpass':
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$this->writeLog(LOG_NOTICE, 'setpass command disabled');
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// We don't accept the setting of passwords here
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fwrite(STDOUT, pack('nn', 2, 0));
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$this->writeLog(LOG_NOTICE, 'setpass command disabled');
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break;
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fwrite(STDOUT, pack('nn', 2, 0));
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default:
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break;
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// We don't know the given command
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default:
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$this->writeLog(LOG_NOTICE, 'unknown command ' . $aCommand[0]);
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// We don't know the given command
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fwrite(STDOUT, pack('nn', 2, 0));
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$this->writeLog(LOG_NOTICE, 'unknown command ' . $aCommand[0]);
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break;
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fwrite(STDOUT, pack('nn', 2, 0));
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}
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break;
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} else {
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}
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$this->writeLog(LOG_NOTICE, 'invalid command string ' . $sData);
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} else {
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fwrite(STDOUT, pack('nn', 2, 0));
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$this->writeLog(LOG_NOTICE, 'invalid command string ' . $sData);
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}
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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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}
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/**
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* @brief Check if the given username exists
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/**
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*
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* @brief Check if the given username exists
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* @param array $aCommand The command array
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*
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*/
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* @param array $aCommand The command array
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private function isUser(array $aCommand)
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*/
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{
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private function isUser(array $aCommand)
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$a = get_app();
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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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// Check if there is a username
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$this->writeLog(LOG_NOTICE, 'invalid isuser command, no username given');
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if (!isset($aCommand[1])) {
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fwrite(STDOUT, pack('nn', 2, 0));
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$this->writeLog(LOG_NOTICE, 'invalid isuser command, no username given');
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return;
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fwrite(STDOUT, pack('nn', 2, 0));
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}
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return;
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}
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// Now we check if the given user is valid
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$sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);
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// We only allow one process per hostname. So we set a lock file
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// Problem: We get the firstname after the first auth - not before
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// Does the hostname match? So we try directly
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$this->setHost($aCommand[2]);
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if ($a->get_hostname() == $aCommand[2]) {
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$this->writeLog(LOG_INFO, 'internal user check for ' . $sUser . '@' . $aCommand[2]);
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// Now we check if the given user is valid
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$found = dba::exists('user', ['nickname' => $sUser]);
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$sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);
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} else {
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$found = false;
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// Does the hostname match? So we try directly
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}
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if ($a->get_hostname() == $aCommand[2]) {
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$this->writeLog(LOG_INFO, 'internal user check for ' . $sUser . '@' . $aCommand[2]);
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// If the hostnames doesn't match or there is some failure, we try to check remotely
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$found = dba::exists('user', ['nickname' => $sUser]);
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if (!$found) {
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} else {
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$found = $this->checkUser($aCommand[2], $aCommand[1], true);
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$found = false;
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}
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}
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if ($found) {
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// If the hostnames doesn't match or there is some failure, we try to check remotely
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// The user is okay
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if (!$found) {
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$this->writeLog(LOG_NOTICE, 'valid user: ' . $sUser);
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$found = $this->checkUser($aCommand[2], $aCommand[1], true);
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fwrite(STDOUT, pack('nn', 2, 1));
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}
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} else {
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// The user isn't okay
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if ($found) {
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$this->writeLog(LOG_WARNING, 'invalid user: ' . $sUser);
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// The user is okay
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fwrite(STDOUT, pack('nn', 2, 0));
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$this->writeLog(LOG_NOTICE, 'valid user: ' . $sUser);
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}
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fwrite(STDOUT, pack('nn', 2, 1));
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}
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} else {
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// The user isn't okay
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/**
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$this->writeLog(LOG_WARNING, 'invalid user: ' . $sUser);
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* @brief Check remote user existance via HTTP(S)
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fwrite(STDOUT, pack('nn', 2, 0));
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*
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}
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* @param string $host The hostname
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}
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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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*
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* @brief Check remote user existance via HTTP(S)
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* @return boolean Was the user found?
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*
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*/
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* @param string $host The hostname
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private function checkUser($host, $user, $ssl)
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* @param string $user Username
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{
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* @param boolean $ssl Should the check be done via SSL?
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$this->writeLog(LOG_INFO, 'external user check for ' . $user . '@' . $host);
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*
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* @return boolean Was the user found?
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$url = ($ssl ? 'https' : 'http') . '://' . $host . '/noscrape/' . $user;
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*/
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private function checkUser($host, $user, $ssl)
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$data = z_fetch_url($url);
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{
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$this->writeLog(LOG_INFO, 'external user check for ' . $user . '@' . $host);
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if (!is_array($data)) {
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return false;
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$url = ($ssl ? 'https' : 'http') . '://' . $host . '/noscrape/' . $user;
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}
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$data = z_fetch_url($url);
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if ($data['return_code'] != '200') {
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return false;
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if (!is_array($data)) {
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}
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return false;
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}
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$json = @json_decode($data['body']);
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if (!is_object($json)) {
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if ($data['return_code'] != '200') {
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return false;
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return false;
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}
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}
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return $json->nick == $user;
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$json = @json_decode($data['body']);
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}
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if (!is_object($json)) {
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return false;
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/**
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}
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* @brief Authenticate the given user and password
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*
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return $json->nick == $user;
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* @param array $aCommand The command array
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}
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*/
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private function auth(array $aCommand)
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/**
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{
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* @brief Authenticate the given user and password
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$a = get_app();
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*
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* @param array $aCommand The command array
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// check user authentication
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*/
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if (sizeof($aCommand) != 4) {
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private function auth(array $aCommand)
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$this->writeLog(LOG_NOTICE, 'invalid auth command, data missing');
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{
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fwrite(STDOUT, pack('nn', 2, 0));
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$a = get_app();
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return;
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}
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// check user authentication
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if (sizeof($aCommand) != 4) {
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// We now check if the password match
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$this->writeLog(LOG_NOTICE, 'invalid auth command, data missing');
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$sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);
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fwrite(STDOUT, pack('nn', 2, 0));
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return;
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// Does the hostname match? So we try directly
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}
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if ($a->get_hostname() == $aCommand[2]) {
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$this->writeLog(LOG_INFO, 'internal auth for ' . $sUser . '@' . $aCommand[2]);
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// We only allow one process per hostname. So we set a lock file
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// Problem: We get the firstname after the first auth - not before
|
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$aUser = dba::select('user', ['uid', 'password'], ['nickname' => $sUser], ['limit' => 1]);
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$this->setHost($aCommand[2]);
|
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if (DBM::is_result($aUser)) {
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$uid = User::authenticate($aUser, $aCommand[3]);
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// We now check if the password match
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$Error = $uid === false;
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$sUser = str_replace(array('%20', '(a)'), array(' ', '@'), $aCommand[1]);
|
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} else {
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$this->writeLog(LOG_WARNING, 'user not found: ' . $sUser);
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// Does the hostname match? So we try directly
|
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$Error = true;
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if ($a->get_hostname() == $aCommand[2]) {
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$uid = -1;
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$this->writeLog(LOG_INFO, 'internal auth for ' . $sUser . '@' . $aCommand[2]);
|
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}
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|
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if ($Error) {
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$aUser = dba::select('user', ['uid', 'password'], ['nickname' => $sUser], ['limit' => 1]);
|
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$this->writeLog(LOG_INFO, 'check against alternate password for ' . $sUser . '@' . $aCommand[2]);
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if (DBM::is_result($aUser)) {
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$sPassword = PConfig::get($uid, 'xmpp', 'password', null, true);
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$uid = User::authenticate($aUser, $aCommand[3]);
|
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$Error = ($aCommand[3] != $sPassword);
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$Error = $uid === false;
|
||||||
}
|
} else {
|
||||||
} else {
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$this->writeLog(LOG_WARNING, 'user not found: ' . $sUser);
|
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$Error = true;
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$Error = true;
|
||||||
}
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$uid = -1;
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||||||
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}
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||||||
// If the hostnames doesn't match or there is some failure, we try to check remotely
|
if ($Error) {
|
||||||
if ($Error) {
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$this->writeLog(LOG_INFO, 'check against alternate password for ' . $sUser . '@' . $aCommand[2]);
|
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$Error = !$this->checkCredentials($aCommand[2], $aCommand[1], $aCommand[3], true);
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$sPassword = PConfig::get($uid, 'xmpp', 'password', null, true);
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}
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$Error = ($aCommand[3] != $sPassword);
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}
|
||||||
if ($Error) {
|
} else {
|
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$this->writeLog(LOG_WARNING, 'authentification failed for user ' . $sUser . '@' . $aCommand[2]);
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$Error = true;
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fwrite(STDOUT, pack('nn', 2, 0));
|
}
|
||||||
} else {
|
|
||||||
$this->writeLog(LOG_NOTICE, 'authentificated user ' . $sUser . '@' . $aCommand[2]);
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// If the hostnames doesn't match or there is some failure, we try to check remotely
|
||||||
fwrite(STDOUT, pack('nn', 2, 1));
|
if ($Error) {
|
||||||
}
|
$Error = !$this->checkCredentials($aCommand[2], $aCommand[1], $aCommand[3], true);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
if ($Error) {
|
||||||
* @brief Check remote credentials via HTTP(S)
|
$this->writeLog(LOG_WARNING, 'authentification failed for user ' . $sUser . '@' . $aCommand[2]);
|
||||||
*
|
fwrite(STDOUT, pack('nn', 2, 0));
|
||||||
* @param string $host The hostname
|
} else {
|
||||||
* @param string $user Username
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$this->writeLog(LOG_NOTICE, 'authentificated user ' . $sUser . '@' . $aCommand[2]);
|
||||||
* @param string $password Password
|
fwrite(STDOUT, pack('nn', 2, 1));
|
||||||
* @param boolean $ssl Should the check be done via SSL?
|
}
|
||||||
*
|
}
|
||||||
* @return boolean Are the credentials okay?
|
|
||||||
*/
|
/**
|
||||||
private function checkCredentials($host, $user, $password, $ssl)
|
* @brief Check remote credentials via HTTP(S)
|
||||||
{
|
*
|
||||||
$url = ($ssl ? 'https' : 'http') . '://' . $host . '/api/account/verify_credentials.json';
|
* @param string $host The hostname
|
||||||
|
* @param string $user Username
|
||||||
$ch = curl_init();
|
* @param string $password Password
|
||||||
curl_setopt($ch, CURLOPT_URL, $url);
|
* @param boolean $ssl Should the check be done via SSL?
|
||||||
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
|
*
|
||||||
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
|
* @return boolean Are the credentials okay?
|
||||||
curl_setopt($ch, CURLOPT_HEADER, true);
|
*/
|
||||||
curl_setopt($ch, CURLOPT_NOBODY, true);
|
private function checkCredentials($host, $user, $password, $ssl)
|
||||||
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
|
{
|
||||||
curl_setopt($ch, CURLOPT_USERPWD, $user . ':' . $password);
|
$this->writeLog(LOG_INFO, 'external credential check for ' . $user . '@' . $host);
|
||||||
|
|
||||||
curl_exec($ch);
|
$url = ($ssl ? 'https' : 'http') . '://' . $host . '/api/account/verify_credentials.json?skip_status=true';
|
||||||
$curl_info = @curl_getinfo($ch);
|
|
||||||
$http_code = $curl_info['http_code'];
|
$ch = curl_init();
|
||||||
curl_close($ch);
|
curl_setopt($ch, CURLOPT_URL, $url);
|
||||||
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
|
||||||
$this->writeLog(LOG_INFO, 'external auth for ' . $user . '@' . $host . ' returned ' . $http_code);
|
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
|
||||||
|
curl_setopt($ch, CURLOPT_HEADER, true);
|
||||||
return $http_code == 200;
|
curl_setopt($ch, CURLOPT_NOBODY, true);
|
||||||
}
|
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
|
||||||
|
curl_setopt($ch, CURLOPT_USERPWD, $user . ':' . $password);
|
||||||
/**
|
|
||||||
* @brief write data to the syslog
|
curl_exec($ch);
|
||||||
*
|
$curl_info = @curl_getinfo($ch);
|
||||||
* @param integer $loglevel The syslog loglevel
|
$http_code = $curl_info['http_code'];
|
||||||
* @param string $sMessage The syslog message
|
curl_close($ch);
|
||||||
*/
|
|
||||||
private function writeLog($loglevel, $sMessage)
|
$this->writeLog(LOG_INFO, 'external auth for ' . $user . '@' . $host . ' returned ' . $http_code);
|
||||||
{
|
|
||||||
if (!$this->bDebug && ($loglevel >= LOG_DEBUG)) {
|
return $http_code == 200;
|
||||||
return;
|
}
|
||||||
}
|
|
||||||
syslog($loglevel, $sMessage);
|
/**
|
||||||
}
|
* @brief Set the hostname for this process
|
||||||
|
*
|
||||||
/**
|
* @param string $host The hostname
|
||||||
* @brief destroy the class, close the syslog connection.
|
*/
|
||||||
*/
|
private function setHost($host)
|
||||||
public function __destruct()
|
{
|
||||||
{
|
if (!empty($this->host)) {
|
||||||
$this->writeLog(LOG_NOTICE, 'stop');
|
return;
|
||||||
closelog();
|
}
|
||||||
}
|
|
||||||
}
|
$this->writeLog(LOG_INFO, 'Hostname for process ' . getmypid() . ' is ' . $host);
|
||||||
|
|
||||||
|
$this->host = $host;
|
||||||
|
|
||||||
|
$lockpath = Config::get('jabber', 'lockpath');
|
||||||
|
if (is_null($lockpath)) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
$file = $lockpath . DIRECTORY_SEPARATOR . $host;
|
||||||
|
if (Pidfile::isRunningProcess($file)) {
|
||||||
|
if (PidFile::killProcess($file)) {
|
||||||
|
$this->writeLog(LOG_INFO, 'Old process was successfully killed');
|
||||||
|
} else {
|
||||||
|
$this->writeLog(LOG_ERR, "The old Process wasn't killed in time. We now quit our process.");
|
||||||
|
die();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Now it is safe to create the pid file
|
||||||
|
Pidfile::create($file);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @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();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
|
||||||
|
|
@ -9,64 +9,100 @@ namespace Friendica\Util;
|
||||||
*/
|
*/
|
||||||
class Pidfile
|
class Pidfile
|
||||||
{
|
{
|
||||||
private $file;
|
|
||||||
private $running;
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* @param string $dir path
|
* @brief Read the pid from a given pid file
|
||||||
* @param string $name filename
|
*
|
||||||
* @return void
|
* @param string $file Filename of pid file
|
||||||
|
*
|
||||||
|
* @return boolean|string PID or "false" if not existent
|
||||||
*/
|
*/
|
||||||
public function __construct($dir, $name)
|
static private function pidFromFile($file) {
|
||||||
{
|
if (!file_exists($file)) {
|
||||||
$this->_file = "$dir/$name.pid";
|
return false;
|
||||||
|
|
||||||
if (file_exists($this->_file)) {
|
|
||||||
$pid = trim(@file_get_contents($this->file));
|
|
||||||
if (($pid != "") && posix_kill($pid, 0)) {
|
|
||||||
$this->running = true;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
if (! $this->running) {
|
return trim(@file_get_contents($file));
|
||||||
$pid = getmypid();
|
|
||||||
file_put_contents($this->file, $pid);
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* @return void
|
* @brief Is there a running process with the given pid file
|
||||||
|
*
|
||||||
|
* @param string $file Filename of pid file
|
||||||
|
*
|
||||||
|
* @return boolean Is it running?
|
||||||
*/
|
*/
|
||||||
public function __destruct()
|
static public function isRunningProcess($file) {
|
||||||
{
|
$pid = self::pidFromFile($file);
|
||||||
if ((! $this->running) && file_exists($this->file)) {
|
|
||||||
@unlink($this->file);
|
if (!$pid) {
|
||||||
|
return false;
|
||||||
}
|
}
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
// Is the process running?
|
||||||
* @return boolean
|
$running = posix_kill($pid, 0);
|
||||||
*/
|
|
||||||
public static function isRunning()
|
|
||||||
{
|
|
||||||
return self::$running;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
// If not, then we will kill the stale file
|
||||||
* @return object
|
if (!$running) {
|
||||||
*/
|
self::delete($file);
|
||||||
public static function runningTime()
|
|
||||||
{
|
|
||||||
return time() - @filectime(self::$file);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @return boolean
|
|
||||||
*/
|
|
||||||
public static function kill()
|
|
||||||
{
|
|
||||||
if (file_exists(self::$file)) {
|
|
||||||
return posix_kill(file_get_contents(self::$file), SIGTERM);
|
|
||||||
}
|
}
|
||||||
|
return $running;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Kills a process from a given pid file
|
||||||
|
*
|
||||||
|
* @param string $file Filename of pid file
|
||||||
|
*
|
||||||
|
* @return boolean Was it killed successfully?
|
||||||
|
*/
|
||||||
|
static public function killProcess($file) {
|
||||||
|
$pid = self::pidFromFile($file);
|
||||||
|
|
||||||
|
// We don't have a process id? then we quit
|
||||||
|
if (!$pid) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// We now kill the process
|
||||||
|
$killed = posix_kill($pid, SIGTERM);
|
||||||
|
|
||||||
|
// If we killed the process successfully, we can remove the pidfile
|
||||||
|
if ($killed) {
|
||||||
|
self::delete($file);
|
||||||
|
}
|
||||||
|
return $killed;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Creates a pid file
|
||||||
|
*
|
||||||
|
* @param string $file Filename of pid file
|
||||||
|
*
|
||||||
|
* @return boolean|string PID or "false" if not created
|
||||||
|
*/
|
||||||
|
static public function create($file) {
|
||||||
|
$pid = self::pidFromFile($file);
|
||||||
|
|
||||||
|
// We have a process id? then we quit
|
||||||
|
if ($pid) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
$pid = getmypid();
|
||||||
|
file_put_contents($file, $pid);
|
||||||
|
|
||||||
|
// Now we check if everything is okay
|
||||||
|
return self::pidFromFile($file);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Deletes a given pid file
|
||||||
|
*
|
||||||
|
* @param string $file Filename of pid file
|
||||||
|
*
|
||||||
|
* @return boolean Is it running?
|
||||||
|
*/
|
||||||
|
static public function delete($file) {
|
||||||
|
return @unlink($file);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue