137 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			137 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/*
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 * Copyright 2014 Google Inc.
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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/**
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 * Curl based implementation of W3TCG_Google_IO.
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 *
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 * @author Stuart Langley <slangley@google.com>
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 */
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class W3TCG_Google_IO_Curl extends W3TCG_Google_IO_Abstract
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{
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  // cURL hex representation of version 7.30.0
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  const NO_QUIRK_VERSION = 0x071E00;
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  private $options = array();
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  /**
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   * Execute an HTTP Request
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   *
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   * @param W3TCG_Google_HttpRequest $request the http request to be executed
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   * @return W3TCG_Google_HttpRequest http request with the response http code,
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   * response headers and response body filled in
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   * @throws W3TCG_Google_IO_Exception on curl or IO error
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   */
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  public function executeRequest(W3TCG_Google_Http_Request $request)
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  {
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    $curl = curl_init();
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    if ($request->getPostBody()) {
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      curl_setopt($curl, CURLOPT_POSTFIELDS, $request->getPostBody());
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    }
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    $requestHeaders = $request->getRequestHeaders();
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    if ($requestHeaders && is_array($requestHeaders)) {
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      $curlHeaders = array();
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      foreach ($requestHeaders as $k => $v) {
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        $curlHeaders[] = "$k: $v";
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      }
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      curl_setopt($curl, CURLOPT_HTTPHEADER, $curlHeaders);
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    }
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    curl_setopt($curl, CURLOPT_URL, $request->getUrl());
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    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $request->getRequestMethod());
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    curl_setopt($curl, CURLOPT_USERAGENT, $request->getUserAgent());
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    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, false);
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    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);
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    curl_setopt($curl, CURLOPT_SSLVERSION, 1);
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    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
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    curl_setopt($curl, CURLOPT_HEADER, true);
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    if ($request->canGzip()) {
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      curl_setopt($curl, CURLOPT_ENCODING, 'gzip,deflate');
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    }
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    foreach ($this->options as $key => $var) {
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      curl_setopt($curl, $key, $var);
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    }
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    if (!isset($this->options[CURLOPT_CAINFO])) {
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      curl_setopt($curl, CURLOPT_CAINFO, dirname(__FILE__) . '/cacerts.pem');
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    }
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    $response = curl_exec($curl);
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    if ($response === false) {
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      throw new W3TCG_Google_IO_Exception(curl_error($curl));
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    }
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    $headerSize = curl_getinfo($curl, CURLINFO_HEADER_SIZE);
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    list($responseHeaders, $responseBody) = $this->parseHttpResponse($response, $headerSize);
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    $responseCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
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    return array($responseBody, $responseHeaders, $responseCode);
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  }
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  /**
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   * Set options that update the transport implementation's behavior.
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   * @param $options
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   */
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  public function setOptions($options)
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  {
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    $this->options = $options + $this->options;
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  }
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  /**
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   * Set the maximum request time in seconds.
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   * @param $timeout in seconds
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   */
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  public function setTimeout($timeout)
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  {
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    // Since this timeout is really for putting a bound on the time
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    // we'll set them both to the same. If you need to specify a longer
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    // CURLOPT_TIMEOUT, or a tigher CONNECTTIMEOUT, the best thing to
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    // do is use the setOptions method for the values individually.
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    $this->options[CURLOPT_CONNECTTIMEOUT] = $timeout;
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    $this->options[CURLOPT_TIMEOUT] = $timeout;
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  }
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  /**
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   * Get the maximum request time in seconds.
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   * @return timeout in seconds
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   */
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  public function getTimeout()
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  {
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    return $this->options[CURLOPT_TIMEOUT];
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  }
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  /**
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   * Test for the presence of a cURL header processing bug
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   *
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   * {@inheritDoc}
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   *
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   * @return boolean
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   */
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  protected function needsQuirk()
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  {
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    $ver = curl_version();
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    $versionNum = $ver['version_number'];
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    return $versionNum < W3TCG_Google_IO_Curl::NO_QUIRK_VERSION;
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  }
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}
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