280 lines
8.2 KiB
PHP
280 lines
8.2 KiB
PHP
<?php
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/**
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* Piwik - Open source web analytics
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*
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* @link http://piwik.org
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* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
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*/
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namespace Piwik;
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use Piwik\CliMulti\Output;
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use Piwik\CliMulti\Process;
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/**
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* Class CliMulti.
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*/
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class CliMulti {
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/**
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* If set to true or false it will overwrite whether async is supported or not.
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*
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* @var null|bool
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*/
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public $supportsAsync = null;
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/**
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* @var \Piwik\CliMulti\Process[]
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*/
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private $processes = array();
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/**
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* @var \Piwik\CliMulti\Output[]
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*/
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private $outputs = array();
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private $acceptInvalidSSLCertificate = false;
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public function __construct()
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{
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$this->supportsAsync = $this->supportsAsync();
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}
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/**
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* It will request all given URLs in parallel (async) using the CLI and wait until all requests are finished.
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* If multi cli is not supported (eg windows) it will initiate an HTTP request instead (not async).
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*
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* @param string[] $piwikUrls An array of urls, for instance:
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* array('http://www.example.com/piwik?module=API...')
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* @return array The response of each URL in the same order as the URLs. The array can contain null values in case
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* there was a problem with a request, for instance if the process died unexpected.
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*/
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public function request(array $piwikUrls)
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{
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$this->start($piwikUrls);
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do {
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usleep(100000); // 100 * 1000 = 100ms
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} while (!$this->hasFinished());
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$results = $this->getResponse($piwikUrls);
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$this->cleanup();
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self::cleanupNotRemovedFiles();
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return $results;
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}
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/**
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* Ok, this sounds weird. Why should we care about ssl certificates when we are in CLI mode? It is needed for
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* our simple fallback mode for Windows where we initiate HTTP requests instead of CLI.
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* @param $acceptInvalidSSLCertificate
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*/
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public function setAcceptInvalidSSLCertificate($acceptInvalidSSLCertificate)
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{
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$this->acceptInvalidSSLCertificate = $acceptInvalidSSLCertificate;
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}
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private function start($piwikUrls)
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{
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foreach ($piwikUrls as $index => $url) {
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$cmdId = $this->generateCommandId($url) . $index;
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$output = new Output($cmdId);
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if ($this->supportsAsync) {
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$this->executeAsyncCli($url, $output, $cmdId);
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} else {
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$this->executeNotAsyncHttp($url, $output);
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}
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$this->outputs[] = $output;
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}
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}
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private function buildCommand($hostname, $query, $outputFile)
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{
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$bin = $this->findPhpBinary();
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return sprintf('%s -q %s/console climulti:request --piwik-domain=%s %s > %s 2>&1 &',
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$bin, PIWIK_INCLUDE_PATH, escapeshellarg($hostname), escapeshellarg($query), $outputFile);
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}
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private function getResponse()
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{
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$response = array();
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foreach ($this->outputs as $output) {
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$response[] = $output->get();
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}
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return $response;
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}
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private function hasFinished()
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{
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foreach ($this->processes as $index => $process) {
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$hasStarted = $process->hasStarted();
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if (!$hasStarted && 8 <= $process->getSecondsSinceCreation()) {
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// if process was created more than 8 seconds ago but still not started there must be something wrong.
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// ==> declare the process as finished
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$process->finishProcess();
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continue;
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} elseif (!$hasStarted) {
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return false;
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}
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if ($process->isRunning()) {
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return false;
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}
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if ($process->hasFinished()) {
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// prevent from checking this process over and over again
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unset($this->processes[$index]);
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}
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}
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return true;
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}
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private function generateCommandId($command)
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{
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return substr(Common::hash($command . microtime(true) . rand(0, 99999)), 0, 100);
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}
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/**
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* What is missing under windows? Detection whether a process is still running in Process::isProcessStillRunning
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* and how to send a process into background in start()
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*/
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private function supportsAsync()
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{
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return !SettingsServer::isWindows()
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&& Process::isSupported()
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&& $this->findPhpBinary();
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}
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private function cleanup()
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{
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foreach ($this->processes as $pid) {
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$pid->finishProcess();
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}
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foreach ($this->outputs as $output) {
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$output->destroy();
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}
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$this->processes = array();
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$this->outputs = array();
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}
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/**
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* Remove files older than one week. They should be cleaned up automatically after each request but for whatever
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* reason there can be always some files left.
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*/
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public static function cleanupNotRemovedFiles()
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{
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$timeOneWeekAgo = strtotime('-1 week');
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$files = _glob(self::getTmpPath() . '/*');
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if(empty($files)) {
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return;
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}
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foreach ($files as $file) {
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$timeLastModified = filemtime($file);
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if ($timeOneWeekAgo > $timeLastModified) {
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unlink($file);
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}
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}
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}
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public static function getTmpPath()
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{
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$dir = PIWIK_INCLUDE_PATH . '/tmp/climulti';
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return SettingsPiwik::rewriteTmpPathWithHostname($dir);
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}
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private function findPhpBinary()
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{
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if (defined('PHP_BINARY') && false === strpos(PHP_BINARY, 'fpm')) {
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return PHP_BINARY;
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}
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$bin = '';
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if (!empty($_SERVER['_']) && Common::isPhpCliMode()) {
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$bin = $this->getPhpCommandIfValid($_SERVER['_']);
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}
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if (empty($bin) && !empty($_SERVER['argv'][0]) && Common::isPhpCliMode()) {
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$bin = $this->getPhpCommandIfValid($_SERVER['argv'][0]);
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}
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if (empty($bin)) {
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$bin = shell_exec('which php');
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}
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if (empty($bin)) {
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$bin = shell_exec('which php5');
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}
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if (!empty($bin)) {
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return trim($bin);
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}
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}
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private function executeAsyncCli($url, Output $output, $cmdId)
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{
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$this->processes[] = new Process($cmdId);
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$url = $this->appendTestmodeParamToUrlIfNeeded($url);
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$query = UrlHelper::getQueryFromUrl($url, array('pid' => $cmdId));
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$hostname = UrlHelper::getHostFromUrl($url);
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$command = $this->buildCommand($hostname, $query, $output->getPathToFile());
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Log::debug($command);
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shell_exec($command);
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}
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private function executeNotAsyncHttp($url, Output $output)
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{
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try {
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Log::debug("Execute HTTP API request: " . $url);
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$response = Http::sendHttpRequestBy('curl', $url, $timeout = 0, $userAgent = null, $destinationPath = null, $file = null, $followDepth = 0, $acceptLanguage = false, $this->acceptInvalidSSLCertificate);
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$output->write($response);
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} catch (\Exception $e) {
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$message = "Got invalid response from API request: $url. ";
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if (empty($response)) {
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$message .= "The response was empty. This usually means a server error. This solution to this error is generally to increase the value of 'memory_limit' in your php.ini file. Please check your Web server Error Log file for more details.";
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} else {
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$message .= "Response was '" . $e->getMessage() . "'";
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}
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$output->write($message);
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}
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}
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private function appendTestmodeParamToUrlIfNeeded($url)
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{
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$isTestMode = $url && false !== strpos($url, 'tests/PHPUnit/proxy');
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if ($isTestMode && false === strpos($url, '?')) {
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$url .= "?testmode=1";
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} elseif ($isTestMode) {
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$url .= "&testmode=1";
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}
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return $url;
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}
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private function getPhpCommandIfValid($path)
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{
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if (!empty($path) && is_executable($path)) {
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if (0 === strpos($path, PHP_BINDIR) && false === strpos($path, 'phpunit')) {
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return $path;
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}
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}
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}
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}
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