636 lines
19 KiB
PHP
636 lines
19 KiB
PHP
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<?php
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/**
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* Copyright 2017 Facebook, Inc.
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*
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* You are hereby granted a non-exclusive, worldwide, royalty-free license to
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* use, copy, modify, and distribute this software in source code or binary
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* form for use in connection with the web services and APIs provided by
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* Facebook.
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*
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* As with any software that integrates with the Facebook platform, your use
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* of this software is subject to the Facebook Developer Principles and
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* Policies [http://developers.facebook.com/policy/]. This copyright notice
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* shall be included in all copies or substantial portions of the software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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namespace Facebook;
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use Facebook\Authentication\AccessToken;
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use Facebook\Authentication\OAuth2Client;
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use Facebook\FileUpload\FacebookFile;
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use Facebook\FileUpload\FacebookResumableUploader;
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use Facebook\FileUpload\FacebookTransferChunk;
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use Facebook\FileUpload\FacebookVideo;
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use Facebook\GraphNodes\GraphEdge;
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use Facebook\Url\UrlDetectionInterface;
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use Facebook\Url\FacebookUrlDetectionHandler;
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use Facebook\PseudoRandomString\PseudoRandomStringGeneratorFactory;
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use Facebook\PseudoRandomString\PseudoRandomStringGeneratorInterface;
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use Facebook\HttpClients\HttpClientsFactory;
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use Facebook\PersistentData\PersistentDataFactory;
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use Facebook\PersistentData\PersistentDataInterface;
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use Facebook\Helpers\FacebookCanvasHelper;
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use Facebook\Helpers\FacebookJavaScriptHelper;
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use Facebook\Helpers\FacebookPageTabHelper;
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use Facebook\Helpers\FacebookRedirectLoginHelper;
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use Facebook\Exceptions\FacebookSDKException;
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/**
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* Class Facebook
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*
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* @package Facebook
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*/
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class Facebook
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{
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/**
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* @const string Version number of the Facebook PHP SDK.
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*/
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const VERSION = '5.7.0';
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/**
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* @const string Default Graph API version for requests.
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*/
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const DEFAULT_GRAPH_VERSION = 'v2.10';
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/**
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* @const string The name of the environment variable that contains the app ID.
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*/
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const APP_ID_ENV_NAME = 'FACEBOOK_APP_ID';
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/**
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* @const string The name of the environment variable that contains the app secret.
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*/
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const APP_SECRET_ENV_NAME = 'FACEBOOK_APP_SECRET';
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/**
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* @var FacebookApp The FacebookApp entity.
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*/
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protected $app;
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/**
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* @var FacebookClient The Facebook client service.
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*/
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protected $client;
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/**
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* @var OAuth2Client The OAuth 2.0 client service.
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*/
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protected $oAuth2Client;
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/**
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* @var UrlDetectionInterface|null The URL detection handler.
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*/
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protected $urlDetectionHandler;
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/**
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* @var PseudoRandomStringGeneratorInterface|null The cryptographically secure pseudo-random string generator.
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*/
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protected $pseudoRandomStringGenerator;
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/**
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* @var AccessToken|null The default access token to use with requests.
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*/
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protected $defaultAccessToken;
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/**
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* @var string|null The default Graph version we want to use.
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*/
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protected $defaultGraphVersion;
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/**
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* @var PersistentDataInterface|null The persistent data handler.
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*/
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protected $persistentDataHandler;
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/**
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* @var FacebookResponse|FacebookBatchResponse|null Stores the last request made to Graph.
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*/
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protected $lastResponse;
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/**
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* Instantiates a new Facebook super-class object.
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*
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* @param array $config
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*
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* @throws FacebookSDKException
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*/
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public function __construct(array $config = [])
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{
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$config = array_merge([
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'app_id' => getenv(static::APP_ID_ENV_NAME),
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'app_secret' => getenv(static::APP_SECRET_ENV_NAME),
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'default_graph_version' => static::DEFAULT_GRAPH_VERSION,
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'enable_beta_mode' => false,
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'http_client_handler' => null,
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'persistent_data_handler' => null,
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'pseudo_random_string_generator' => null,
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'url_detection_handler' => null,
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], $config);
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if (!$config['app_id']) {
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throw new FacebookSDKException('Required "app_id" key not supplied in config and could not find fallback environment variable "' . static::APP_ID_ENV_NAME . '"');
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}
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if (!$config['app_secret']) {
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throw new FacebookSDKException('Required "app_secret" key not supplied in config and could not find fallback environment variable "' . static::APP_SECRET_ENV_NAME . '"');
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}
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$this->app = new FacebookApp($config['app_id'], $config['app_secret']);
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$this->client = new FacebookClient(
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HttpClientsFactory::createHttpClient($config['http_client_handler']),
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$config['enable_beta_mode']
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);
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$this->pseudoRandomStringGenerator = PseudoRandomStringGeneratorFactory::createPseudoRandomStringGenerator(
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$config['pseudo_random_string_generator']
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);
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$this->setUrlDetectionHandler($config['url_detection_handler'] ?: new FacebookUrlDetectionHandler());
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$this->persistentDataHandler = PersistentDataFactory::createPersistentDataHandler(
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$config['persistent_data_handler']
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);
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if (isset($config['default_access_token'])) {
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$this->setDefaultAccessToken($config['default_access_token']);
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}
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// @todo v6: Throw an InvalidArgumentException if "default_graph_version" is not set
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$this->defaultGraphVersion = $config['default_graph_version'];
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}
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/**
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* Returns the FacebookApp entity.
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*
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* @return FacebookApp
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*/
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public function getApp()
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{
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return $this->app;
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}
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/**
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* Returns the FacebookClient service.
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*
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* @return FacebookClient
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*/
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public function getClient()
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{
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return $this->client;
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}
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/**
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* Returns the OAuth 2.0 client service.
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*
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* @return OAuth2Client
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*/
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public function getOAuth2Client()
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{
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if (!$this->oAuth2Client instanceof OAuth2Client) {
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$app = $this->getApp();
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$client = $this->getClient();
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$this->oAuth2Client = new OAuth2Client($app, $client, $this->defaultGraphVersion);
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}
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return $this->oAuth2Client;
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}
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/**
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* Returns the last response returned from Graph.
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*
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* @return FacebookResponse|FacebookBatchResponse|null
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*/
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public function getLastResponse()
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{
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return $this->lastResponse;
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}
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/**
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* Returns the URL detection handler.
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*
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* @return UrlDetectionInterface
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*/
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public function getUrlDetectionHandler()
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{
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return $this->urlDetectionHandler;
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}
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/**
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* Changes the URL detection handler.
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*
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* @param UrlDetectionInterface $urlDetectionHandler
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*/
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private function setUrlDetectionHandler(UrlDetectionInterface $urlDetectionHandler)
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{
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$this->urlDetectionHandler = $urlDetectionHandler;
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}
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/**
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* Returns the default AccessToken entity.
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*
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* @return AccessToken|null
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*/
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public function getDefaultAccessToken()
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{
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return $this->defaultAccessToken;
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}
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/**
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* Sets the default access token to use with requests.
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*
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* @param AccessToken|string $accessToken The access token to save.
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*
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* @throws \InvalidArgumentException
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*/
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public function setDefaultAccessToken($accessToken)
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{
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if (is_string($accessToken)) {
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$this->defaultAccessToken = new AccessToken($accessToken);
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return;
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}
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if ($accessToken instanceof AccessToken) {
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$this->defaultAccessToken = $accessToken;
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return;
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}
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throw new \InvalidArgumentException('The default access token must be of type "string" or Facebook\AccessToken');
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}
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/**
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* Returns the default Graph version.
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*
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* @return string
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*/
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public function getDefaultGraphVersion()
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{
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return $this->defaultGraphVersion;
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}
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/**
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* Returns the redirect login helper.
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*
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* @return FacebookRedirectLoginHelper
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*/
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public function getRedirectLoginHelper()
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{
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return new FacebookRedirectLoginHelper(
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$this->getOAuth2Client(),
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$this->persistentDataHandler,
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$this->urlDetectionHandler,
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$this->pseudoRandomStringGenerator
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);
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}
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/**
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* Returns the JavaScript helper.
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*
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* @return FacebookJavaScriptHelper
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*/
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public function getJavaScriptHelper()
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{
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return new FacebookJavaScriptHelper($this->app, $this->client, $this->defaultGraphVersion);
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}
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/**
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* Returns the canvas helper.
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*
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* @return FacebookCanvasHelper
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*/
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public function getCanvasHelper()
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{
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return new FacebookCanvasHelper($this->app, $this->client, $this->defaultGraphVersion);
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}
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/**
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* Returns the page tab helper.
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*
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* @return FacebookPageTabHelper
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*/
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public function getPageTabHelper()
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{
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return new FacebookPageTabHelper($this->app, $this->client, $this->defaultGraphVersion);
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}
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/**
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* Sends a GET request to Graph and returns the result.
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*
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* @param string $endpoint
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* @param AccessToken|string|null $accessToken
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* @param string|null $eTag
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* @param string|null $graphVersion
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*
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* @return FacebookResponse
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*
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* @throws FacebookSDKException
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*/
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public function get($endpoint, $accessToken = null, $eTag = null, $graphVersion = null)
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{
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return $this->sendRequest(
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'GET',
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$endpoint,
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$params = [],
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$accessToken,
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$eTag,
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$graphVersion
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);
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}
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/**
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* Sends a POST request to Graph and returns the result.
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*
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* @param string $endpoint
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* @param array $params
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* @param AccessToken|string|null $accessToken
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* @param string|null $eTag
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* @param string|null $graphVersion
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*
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* @return FacebookResponse
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*
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* @throws FacebookSDKException
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*/
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public function post($endpoint, array $params = [], $accessToken = null, $eTag = null, $graphVersion = null)
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{
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return $this->sendRequest(
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'POST',
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$endpoint,
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$params,
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$accessToken,
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$eTag,
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$graphVersion
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);
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}
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/**
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* Sends a DELETE request to Graph and returns the result.
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*
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* @param string $endpoint
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* @param array $params
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* @param AccessToken|string|null $accessToken
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* @param string|null $eTag
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* @param string|null $graphVersion
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*
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* @return FacebookResponse
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*
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* @throws FacebookSDKException
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*/
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public function delete($endpoint, array $params = [], $accessToken = null, $eTag = null, $graphVersion = null)
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{
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return $this->sendRequest(
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'DELETE',
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$endpoint,
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$params,
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$accessToken,
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$eTag,
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$graphVersion
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);
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}
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/**
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* Sends a request to Graph for the next page of results.
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*
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* @param GraphEdge $graphEdge The GraphEdge to paginate over.
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*
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* @return GraphEdge|null
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*
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* @throws FacebookSDKException
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*/
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public function next(GraphEdge $graphEdge)
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{
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return $this->getPaginationResults($graphEdge, 'next');
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}
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/**
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* Sends a request to Graph for the previous page of results.
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*
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* @param GraphEdge $graphEdge The GraphEdge to paginate over.
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*
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* @return GraphEdge|null
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|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function previous(GraphEdge $graphEdge)
|
||
|
|
{
|
||
|
|
return $this->getPaginationResults($graphEdge, 'previous');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sends a request to Graph for the next page of results.
|
||
|
|
*
|
||
|
|
* @param GraphEdge $graphEdge The GraphEdge to paginate over.
|
||
|
|
* @param string $direction The direction of the pagination: next|previous.
|
||
|
|
*
|
||
|
|
* @return GraphEdge|null
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function getPaginationResults(GraphEdge $graphEdge, $direction)
|
||
|
|
{
|
||
|
|
$paginationRequest = $graphEdge->getPaginationRequest($direction);
|
||
|
|
if (!$paginationRequest) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->lastResponse = $this->client->sendRequest($paginationRequest);
|
||
|
|
|
||
|
|
// Keep the same GraphNode subclass
|
||
|
|
$subClassName = $graphEdge->getSubClassName();
|
||
|
|
$graphEdge = $this->lastResponse->getGraphEdge($subClassName, false);
|
||
|
|
|
||
|
|
return count($graphEdge) > 0 ? $graphEdge : null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sends a request to Graph and returns the result.
|
||
|
|
*
|
||
|
|
* @param string $method
|
||
|
|
* @param string $endpoint
|
||
|
|
* @param array $params
|
||
|
|
* @param AccessToken|string|null $accessToken
|
||
|
|
* @param string|null $eTag
|
||
|
|
* @param string|null $graphVersion
|
||
|
|
*
|
||
|
|
* @return FacebookResponse
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function sendRequest($method, $endpoint, array $params = [], $accessToken = null, $eTag = null, $graphVersion = null)
|
||
|
|
{
|
||
|
|
$accessToken = $accessToken ?: $this->defaultAccessToken;
|
||
|
|
$graphVersion = $graphVersion ?: $this->defaultGraphVersion;
|
||
|
|
$request = $this->request($method, $endpoint, $params, $accessToken, $eTag, $graphVersion);
|
||
|
|
|
||
|
|
return $this->lastResponse = $this->client->sendRequest($request);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sends a batched request to Graph and returns the result.
|
||
|
|
*
|
||
|
|
* @param array $requests
|
||
|
|
* @param AccessToken|string|null $accessToken
|
||
|
|
* @param string|null $graphVersion
|
||
|
|
*
|
||
|
|
* @return FacebookBatchResponse
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function sendBatchRequest(array $requests, $accessToken = null, $graphVersion = null)
|
||
|
|
{
|
||
|
|
$accessToken = $accessToken ?: $this->defaultAccessToken;
|
||
|
|
$graphVersion = $graphVersion ?: $this->defaultGraphVersion;
|
||
|
|
$batchRequest = new FacebookBatchRequest(
|
||
|
|
$this->app,
|
||
|
|
$requests,
|
||
|
|
$accessToken,
|
||
|
|
$graphVersion
|
||
|
|
);
|
||
|
|
|
||
|
|
return $this->lastResponse = $this->client->sendBatchRequest($batchRequest);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instantiates an empty FacebookBatchRequest entity.
|
||
|
|
*
|
||
|
|
* @param AccessToken|string|null $accessToken The top-level access token. Requests with no access token
|
||
|
|
* will fallback to this.
|
||
|
|
* @param string|null $graphVersion The Graph API version to use.
|
||
|
|
* @return FacebookBatchRequest
|
||
|
|
*/
|
||
|
|
public function newBatchRequest($accessToken = null, $graphVersion = null)
|
||
|
|
{
|
||
|
|
$accessToken = $accessToken ?: $this->defaultAccessToken;
|
||
|
|
$graphVersion = $graphVersion ?: $this->defaultGraphVersion;
|
||
|
|
|
||
|
|
return new FacebookBatchRequest(
|
||
|
|
$this->app,
|
||
|
|
[],
|
||
|
|
$accessToken,
|
||
|
|
$graphVersion
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Instantiates a new FacebookRequest entity.
|
||
|
|
*
|
||
|
|
* @param string $method
|
||
|
|
* @param string $endpoint
|
||
|
|
* @param array $params
|
||
|
|
* @param AccessToken|string|null $accessToken
|
||
|
|
* @param string|null $eTag
|
||
|
|
* @param string|null $graphVersion
|
||
|
|
*
|
||
|
|
* @return FacebookRequest
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function request($method, $endpoint, array $params = [], $accessToken = null, $eTag = null, $graphVersion = null)
|
||
|
|
{
|
||
|
|
$accessToken = $accessToken ?: $this->defaultAccessToken;
|
||
|
|
$graphVersion = $graphVersion ?: $this->defaultGraphVersion;
|
||
|
|
|
||
|
|
return new FacebookRequest(
|
||
|
|
$this->app,
|
||
|
|
$accessToken,
|
||
|
|
$method,
|
||
|
|
$endpoint,
|
||
|
|
$params,
|
||
|
|
$eTag,
|
||
|
|
$graphVersion
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Factory to create FacebookFile's.
|
||
|
|
*
|
||
|
|
* @param string $pathToFile
|
||
|
|
*
|
||
|
|
* @return FacebookFile
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function fileToUpload($pathToFile)
|
||
|
|
{
|
||
|
|
return new FacebookFile($pathToFile);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Factory to create FacebookVideo's.
|
||
|
|
*
|
||
|
|
* @param string $pathToFile
|
||
|
|
*
|
||
|
|
* @return FacebookVideo
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function videoToUpload($pathToFile)
|
||
|
|
{
|
||
|
|
return new FacebookVideo($pathToFile);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Upload a video in chunks.
|
||
|
|
*
|
||
|
|
* @param int $target The id of the target node before the /videos edge.
|
||
|
|
* @param string $pathToFile The full path to the file.
|
||
|
|
* @param array $metadata The metadata associated with the video file.
|
||
|
|
* @param string|null $accessToken The access token.
|
||
|
|
* @param int $maxTransferTries The max times to retry a failed upload chunk.
|
||
|
|
* @param string|null $graphVersion The Graph API version to use.
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
public function uploadVideo($target, $pathToFile, $metadata = [], $accessToken = null, $maxTransferTries = 5, $graphVersion = null)
|
||
|
|
{
|
||
|
|
$accessToken = $accessToken ?: $this->defaultAccessToken;
|
||
|
|
$graphVersion = $graphVersion ?: $this->defaultGraphVersion;
|
||
|
|
|
||
|
|
$uploader = new FacebookResumableUploader($this->app, $this->client, $accessToken, $graphVersion);
|
||
|
|
$endpoint = '/'.$target.'/videos';
|
||
|
|
$file = $this->videoToUpload($pathToFile);
|
||
|
|
$chunk = $uploader->start($endpoint, $file);
|
||
|
|
|
||
|
|
do {
|
||
|
|
$chunk = $this->maxTriesTransfer($uploader, $endpoint, $chunk, $maxTransferTries);
|
||
|
|
} while (!$chunk->isLastChunk());
|
||
|
|
|
||
|
|
return [
|
||
|
|
'video_id' => $chunk->getVideoId(),
|
||
|
|
'success' => $uploader->finish($endpoint, $chunk->getUploadSessionId(), $metadata),
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Attempts to upload a chunk of a file in $retryCountdown tries.
|
||
|
|
*
|
||
|
|
* @param FacebookResumableUploader $uploader
|
||
|
|
* @param string $endpoint
|
||
|
|
* @param FacebookTransferChunk $chunk
|
||
|
|
* @param int $retryCountdown
|
||
|
|
*
|
||
|
|
* @return FacebookTransferChunk
|
||
|
|
*
|
||
|
|
* @throws FacebookSDKException
|
||
|
|
*/
|
||
|
|
private function maxTriesTransfer(FacebookResumableUploader $uploader, $endpoint, FacebookTransferChunk $chunk, $retryCountdown)
|
||
|
|
{
|
||
|
|
$newChunk = $uploader->transfer($endpoint, $chunk, $retryCountdown < 1);
|
||
|
|
|
||
|
|
if ($newChunk !== $chunk) {
|
||
|
|
return $newChunk;
|
||
|
|
}
|
||
|
|
|
||
|
|
$retryCountdown--;
|
||
|
|
|
||
|
|
// If transfer() returned the same chunk entity, the transfer failed but is resumable.
|
||
|
|
return $this->maxTriesTransfer($uploader, $endpoint, $chunk, $retryCountdown);
|
||
|
|
}
|
||
|
|
}
|