DriverService.php
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<?php
// Copyright 2004-present Facebook. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
namespace Facebook\WebDriver\Remote\Service;
use Exception;
use Facebook\WebDriver\Net\URLChecker;
class DriverService {
/**
* @var string
*/
private $executable;
/**
* @var string
*/
private $url;
/**
* @var array
*/
private $args;
/**
* @var array
*/
private $environment;
/**
* @var resource
*/
private $process;
/**
* @param string $executable
* @param int $port The given port the service should use.
* @param array $args
* @param array|null $environment Use the system environment if it is null
*/
public function __construct(
$executable,
$port,
$args = array(),
$environment = null
) {
$this->executable = self::checkExecutable($executable);
$this->url = sprintf('http://localhost:%d', $port);
$this->args = $args;
$this->environment = $environment ?: $_ENV;
}
/**
* @return string
*/
public function getURL() {
return $this->url;
}
/**
* @return DriverService
*/
public function start() {
if ($this->process !== null) {
return $this;
}
$pipes = array();
$this->process = proc_open(
sprintf("%s %s", $this->executable, implode(' ', $this->args)),
$descriptorspec = array(
0 => array('pipe', 'r'), // stdin
1 => array('pipe', 'w'), // stdout
2 => array('pipe', 'a'), // stderr
),
$pipes,
null,
$this->environment
);
$checker = new URLChecker();
$checker->waitUntilAvailable(20 * 1000, $this->url.'/status');
return $this;
}
/**
* @return DriverService
*/
public function stop() {
if ($this->process === null) {
return $this;
}
proc_terminate($this->process);
$this->process = null;
$checker = new URLChecker();
$checker->waitUntilUnAvailable(3 * 1000, $this->url.'/shutdown');
return $this;
}
/**
* @return bool
*/
public function isRunning() {
if ($this->process === null) {
return false;
}
$status = proc_get_status($this->process);
return $status['running'];
}
/**
* Check if the executable is executable.
*
* @param string $executable
* @return string
* @throws Exception
*/
protected static function checkExecutable($executable) {
if (!is_file($executable)) {
throw new Exception("'$executable' is not a file.");
}
if (!is_executable($executable)) {
throw new Exception("'$executable' is not executable.");
}
return $executable;
}
}