PHP 26
FacebookClient Guest on 24th April 2021 11:24:32 PM
  1. <?php
  2. /**
  3.  * Copyright 2017 Facebook, Inc.
  4.  *
  5.  * You are hereby granted a non-exclusive, worldwide, royalty-free license to
  6.  * use, copy, modify, and distribute this software in source code or binary
  7.  * form for use in connection with the web services and APIs provided by
  8.  * Facebook.
  9.  *
  10.  * As with any software that integrates with the Facebook platform, your use
  11.  * of this software is subject to the Facebook Developer Principles and
  12.  * Policies [http://developers.facebook.com/policy/]. This copyright notice
  13.  * shall be included in all copies or substantial portions of the software.
  14.  *
  15.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16.  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17.  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  18.  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19.  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20.  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21.  * DEALINGS IN THE SOFTWARE.
  22.  *
  23.  */
  24. namespace Facebook;
  25.  
  26. use Facebook\HttpClients\FacebookHttpClientInterface;
  27. use Facebook\HttpClients\FacebookCurlHttpClient;
  28. use Facebook\HttpClients\FacebookStreamHttpClient;
  29. use Facebook\Exceptions\FacebookSDKException;
  30.  
  31. /**
  32.  * Class FacebookClient
  33.  *
  34.  * @package Facebook
  35.  */
  36. class FacebookClient
  37. {
  38.     /**
  39.      * @const string Production Graph API URL.
  40.      */
  41.     const BASE_GRAPH_URL = 'https://graph.facebook.com';
  42.  
  43.     /**
  44.      * @const string Graph API URL for video uploads.
  45.      */
  46.     const BASE_GRAPH_VIDEO_URL = 'https://graph-video.facebook.com';
  47.  
  48.     /**
  49.      * @const string Beta Graph API URL.
  50.      */
  51.     const BASE_GRAPH_URL_BETA = 'https://graph.beta.facebook.com';
  52.  
  53.     /**
  54.      * @const string Beta Graph API URL for video uploads.
  55.      */
  56.     const BASE_GRAPH_VIDEO_URL_BETA = 'https://graph-video.beta.facebook.com';
  57.  
  58.     /**
  59.      * @const int The timeout in seconds for a normal request.
  60.      */
  61.     const DEFAULT_REQUEST_TIMEOUT = 60;
  62.  
  63.     /**
  64.      * @const int The timeout in seconds for a request that contains file uploads.
  65.      */
  66.     const DEFAULT_FILE_UPLOAD_REQUEST_TIMEOUT = 3600;
  67.  
  68.     /**
  69.      * @const int The timeout in seconds for a request that contains video uploads.
  70.      */
  71.     const DEFAULT_VIDEO_UPLOAD_REQUEST_TIMEOUT = 7200;
  72.  
  73.     /**
  74.      * @var bool Toggle to use Graph beta url.
  75.      */
  76.     protected $enableBetaMode = false;
  77.  
  78.     /**
  79.      * @var FacebookHttpClientInterface HTTP client handler.
  80.      */
  81.     protected $httpClientHandler;
  82.  
  83.     /**
  84.      * @var int The number of calls that have been made to Graph.
  85.      */
  86.     public static $requestCount = 0;
  87.  
  88.     /**
  89.      * Instantiates a new FacebookClient object.
  90.      *
  91.      * @param FacebookHttpClientInterface|null $httpClientHandler
  92.      * @param boolean                          $enableBeta
  93.      */
  94.     public function __construct(FacebookHttpClientInterface $httpClientHandler = null, $enableBeta = false)
  95.     {
  96.         $this->httpClientHandler = $httpClientHandler ?: $this->detectHttpClientHandler();
  97.         $this->enableBetaMode = $enableBeta;
  98.     }
  99.  
  100.     /**
  101.      * Sets the HTTP client handler.
  102.      *
  103.      * @param FacebookHttpClientInterface $httpClientHandler
  104.      */
  105.     public function setHttpClientHandler(FacebookHttpClientInterface $httpClientHandler)
  106.     {
  107.         $this->httpClientHandler = $httpClientHandler;
  108.     }
  109.  
  110.     /**
  111.      * Returns the HTTP client handler.
  112.      *
  113.      * @return FacebookHttpClientInterface
  114.      */
  115.     public function getHttpClientHandler()
  116.     {
  117.         return $this->httpClientHandler;
  118.     }
  119.  
  120.     /**
  121.      * Detects which HTTP client handler to use.
  122.      *
  123.      * @return FacebookHttpClientInterface
  124.      */
  125.     public function detectHttpClientHandler()
  126.     {
  127.         return extension_loaded('curl') ? new FacebookCurlHttpClient() : new FacebookStreamHttpClient();
  128.     }
  129.  
  130.     /**
  131.      * Toggle beta mode.
  132.      *
  133.      * @param boolean $betaMode
  134.      */
  135.     public function enableBetaMode($betaMode = true)
  136.     {
  137.         $this->enableBetaMode = $betaMode;
  138.     }
  139.  
  140.     /**
  141.      * Returns the base Graph URL.
  142.      *
  143.      * @param boolean $postToVideoUrl Post to the video API if videos are being uploaded.
  144.      *
  145.      * @return string
  146.      */
  147.     public function getBaseGraphUrl($postToVideoUrl = false)
  148.     {
  149.         if ($postToVideoUrl) {
  150.             return $this->enableBetaMode ? static::BASE_GRAPH_VIDEO_URL_BETA : static::BASE_GRAPH_VIDEO_URL;
  151.         }
  152.  
  153.         return $this->enableBetaMode ? static::BASE_GRAPH_URL_BETA : static::BASE_GRAPH_URL;
  154.     }
  155.  
  156.     /**
  157.      * Prepares the request for sending to the client handler.
  158.      *
  159.      * @param FacebookRequest $request
  160.      *
  161.      * @return array
  162.      */
  163.     public function prepareRequestMessage(FacebookRequest $request)
  164.     {
  165.         $postToVideoUrl = $request->containsVideoUploads();
  166.         $url = $this->getBaseGraphUrl($postToVideoUrl) . $request->getUrl();
  167.  
  168.         // If we're sending files they should be sent as multipart/form-data
  169.         if ($request->containsFileUploads()) {
  170.             $requestBody = $request->getMultipartBody();
  171.             $request->setHeaders([
  172.                 'Content-Type' => 'multipart/form-data; boundary=' . $requestBody->getBoundary(),
  173.             ]);
  174.         } else {
  175.             $requestBody = $request->getUrlEncodedBody();
  176.             $request->setHeaders([
  177.                 'Content-Type' => 'application/x-www-form-urlencoded',
  178.             ]);
  179.         }
  180.  
  181.         return [
  182.             $url,
  183.             $request->getMethod(),
  184.             $request->getHeaders(),
  185.             $requestBody->getBody(),
  186.         ];
  187.     }
  188.  
  189.     /**
  190.      * Makes the request to Graph and returns the result.
  191.      *
  192.      * @param FacebookRequest $request
  193.      *
  194.      * @return FacebookResponse
  195.      *
  196.      * @throws FacebookSDKException
  197.      */
  198.     public function sendRequest(FacebookRequest $request)
  199.     {
  200.         if (get_class($request) === 'Facebook\FacebookRequest') {
  201.             $request->validateAccessToken();
  202.         }
  203.  
  204.         list($url, $method, $headers, $body) = $this->prepareRequestMessage($request);
  205.  
  206.         // Since file uploads can take a while, we need to give more time for uploads
  207.         $timeOut = static::DEFAULT_REQUEST_TIMEOUT;
  208.         if ($request->containsFileUploads()) {
  209.             $timeOut = static::DEFAULT_FILE_UPLOAD_REQUEST_TIMEOUT;
  210.         } elseif ($request->containsVideoUploads()) {
  211.             $timeOut = static::DEFAULT_VIDEO_UPLOAD_REQUEST_TIMEOUT;
  212.         }
  213.  
  214.         // Should throw `FacebookSDKException` exception on HTTP client error.
  215.         // Don't catch to allow it to bubble up.
  216.         $rawResponse = $this->httpClientHandler->send($url, $method, $body, $headers, $timeOut);
  217.  
  218.         static::$requestCount++;
  219.  
  220.         $returnResponse = new FacebookResponse(
  221.             $request,
  222.             $rawResponse->getBody(),
  223.             $rawResponse->getHttpResponseCode(),
  224.             $rawResponse->getHeaders()
  225.         );
  226.  
  227.         if ($returnResponse->isError()) {
  228.             throw $returnResponse->getThrownException();
  229.         }
  230.  
  231.         return $returnResponse;
  232.     }
  233.  
  234.     /**
  235.      * Makes a batched request to Graph and returns the result.
  236.      *
  237.      * @param FacebookBatchRequest $request
  238.      *
  239.      * @return FacebookBatchResponse
  240.      *
  241.      * @throws FacebookSDKException
  242.      */
  243.     public function sendBatchRequest(FacebookBatchRequest $request)
  244.     {
  245.         $request->prepareRequestsForBatch();
  246.         $facebookResponse = $this->sendRequest($request);
  247.  
  248.         return new FacebookBatchResponse($request, $facebookResponse);
  249.     }
  250. }

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