Subversion Repositories cheapmusic

<?php

/**

 * Copyright 2017 Facebook, Inc.

 *

 * You are hereby granted a non-exclusive, worldwide, royalty-free license to

 * use, copy, modify, and distribute this software in source code or binary

 * form for use in connection with the web services and APIs provided by

 * Facebook.

 *

 * As with any software that integrates with the Facebook platform, your use

 * of this software is subject to the Facebook Developer Principles and

 * Policies [http://developers.facebook.com/policy/]. This copyright notice

 * shall be included in all copies or substantial portions of the software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 *

 */

namespace Facebook\HttpClients;

use Facebook\Http\GraphRawResponse;

use Facebook\Exceptions\FacebookSDKException;

/**

 * Class FacebookCurlHttpClient

 *

 * @package Facebook

 */

class FacebookCurlHttpClient implements FacebookHttpClientInterface

{

    /**

     * @var string The client error message

     */

    protected $curlErrorMessage = '';

    /**

     * @var int The curl client error code

     */

    protected $curlErrorCode = 0;

    /**

     * @var string|boolean The raw response from the server

     */

    protected $rawResponse;

    /**

     * @var FacebookCurl Procedural curl as object

     */

    protected $facebookCurl;

    /**

     * @param FacebookCurl|null Procedural curl as object

     */

    public function __construct(FacebookCurl $facebookCurl = null)

    {

        $this->facebookCurl = $facebookCurl ?: new FacebookCurl();

    }

    /**

     * @inheritdoc

     */

    public function send($url, $method, $body, array $headers, $timeOut)

    {

        $this->openConnection($url, $method, $body, $headers, $timeOut);

        $this->sendRequest();

        if ($curlErrorCode = $this->facebookCurl->errno()) {

            throw new FacebookSDKException($this->facebookCurl->error(), $curlErrorCode);

        }

        // Separate the raw headers from the raw body

        list($rawHeaders, $rawBody) = $this->extractResponseHeadersAndBody();

        $this->closeConnection();

        return new GraphRawResponse($rawHeaders, $rawBody);

    }

    /**

     * Opens a new curl connection.

     *

     * @param string $url     The endpoint to send the request to.

     * @param string $method  The request method.

     * @param string $body    The body of the request.

     * @param array  $headers The request headers.

     * @param int    $timeOut The timeout in seconds for the request.

     */

    public function openConnection($url, $method, $body, array $headers, $timeOut)

    {

        $options = [

            CURLOPT_CUSTOMREQUEST => $method,

            CURLOPT_HTTPHEADER => $this->compileRequestHeaders($headers),

            CURLOPT_URL => $url,

            CURLOPT_CONNECTTIMEOUT => 10,

            CURLOPT_TIMEOUT => $timeOut,

            CURLOPT_RETURNTRANSFER => true, // Return response as string

            CURLOPT_HEADER => true, // Enable header processing

            CURLOPT_SSL_VERIFYHOST => 2,

            CURLOPT_SSL_VERIFYPEER => true,

            CURLOPT_CAINFO => __DIR__ . '/certs/DigiCertHighAssuranceEVRootCA.pem',

        ];

        if ($method !== "GET") {

            $options[CURLOPT_POSTFIELDS] = $body;

        }

        $this->facebookCurl->init();

        $this->facebookCurl->setoptArray($options);

    }

    /**

     * Closes an existing curl connection

     */

    public function closeConnection()

    {

        $this->facebookCurl->close();

    }

    /**

     * Send the request and get the raw response from curl

     */

    public function sendRequest()

    {

        $this->rawResponse = $this->facebookCurl->exec();

    }

    /**

     * Compiles the request headers into a curl-friendly format.

     *

     * @param array $headers The request headers.

     *

     * @return array

     */

    public function compileRequestHeaders(array $headers)

    {

        $return = [];

        foreach ($headers as $key => $value) {

            $return[] = $key . ': ' . $value;

        }

        return $return;

    }

    /**

     * Extracts the headers and the body into a two-part array

     *

     * @return array

     */

    public function extractResponseHeadersAndBody()

    {

        $parts = explode("\r\n\r\n", $this->rawResponse);

        $rawBody = array_pop($parts);

        $rawHeaders = implode("\r\n\r\n", $parts);

        return [trim($rawHeaders), trim($rawBody)];

    }

}