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188
app/Vendor/Facebook/HttpClients/FacebookStreamHttpClient.php
vendored
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188
app/Vendor/Facebook/HttpClients/FacebookStreamHttpClient.php
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<?php
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/**
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* Copyright 2014 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\HttpClients;
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use Facebook\FacebookSDKException;
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class FacebookStreamHttpClient implements FacebookHttpable {
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/**
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* @var array The headers to be sent with the request
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*/
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protected $requestHeaders = array();
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/**
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* @var array The headers received from the response
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*/
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protected $responseHeaders = array();
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/**
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* @var int The HTTP status code returned from the server
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*/
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protected $responseHttpStatusCode = 0;
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/**
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* @var FacebookStream Procedural stream wrapper as object
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*/
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protected static $facebookStream;
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/**
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* @param FacebookStream|null Procedural stream wrapper as object
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*/
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public function __construct(FacebookStream $facebookStream = null)
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{
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self::$facebookStream = $facebookStream ?: new FacebookStream();
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}
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/**
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* The headers we want to send with the request
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*
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* @param string $key
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* @param string $value
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*/
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public function addRequestHeader($key, $value)
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{
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$this->requestHeaders[$key] = $value;
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}
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/**
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* The headers returned in the response
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*
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* @return array
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*/
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public function getResponseHeaders()
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{
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return $this->responseHeaders;
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}
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/**
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* The HTTP status response code
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*
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* @return int
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*/
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public function getResponseHttpStatusCode()
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{
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return $this->responseHttpStatusCode;
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}
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/**
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* Sends a request to the server
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*
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* @param string $url The endpoint to send the request to
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* @param string $method The request method
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* @param array $parameters The key value pairs to be sent in the body
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*
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* @return string Raw response from the server
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*
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* @throws \Facebook\FacebookSDKException
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*/
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public function send($url, $method = 'GET', $parameters = array())
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{
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$options = array(
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'http' => array(
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'method' => $method,
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'timeout' => 60,
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'ignore_errors' => true
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),
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'ssl' => array(
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'verify_peer' => true,
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'cafile' => dirname(__FILE__) . DIRECTORY_SEPARATOR . 'fb_ca_chain_bundle.crt',
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),
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);
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if ($parameters) {
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$options['http']['content'] = http_build_query($parameters, null, '&');
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$this->addRequestHeader('Content-type', 'application/x-www-form-urlencoded');
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}
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$options['http']['header'] = $this->compileHeader();
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self::$facebookStream->streamContextCreate($options);
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$rawResponse = self::$facebookStream->fileGetContents($url);
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$rawHeaders = self::$facebookStream->getResponseHeaders();
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if ($rawResponse === false || !$rawHeaders) {
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throw new FacebookSDKException('Stream returned an empty response', 660);
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}
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$this->responseHeaders = self::formatHeadersToArray($rawHeaders);
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$this->responseHttpStatusCode = self::getStatusCodeFromHeader($this->responseHeaders['http_code']);
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return $rawResponse;
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}
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/**
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* Formats the headers for use in the stream wrapper
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*
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* @return string
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*/
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public function compileHeader()
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{
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$header = [];
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foreach($this->requestHeaders as $k => $v) {
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$header[] = $k . ': ' . $v;
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}
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return implode("\r\n", $header);
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}
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/**
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* Converts array of headers returned from the wrapper into
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* something standard
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*
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* @param array $rawHeaders
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*
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* @return array
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*/
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public static function formatHeadersToArray(array $rawHeaders)
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{
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$headers = array();
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foreach ($rawHeaders as $line) {
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if (strpos($line, ':') === false) {
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$headers['http_code'] = $line;
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} else {
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list ($key, $value) = explode(': ', $line);
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$headers[$key] = $value;
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}
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}
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return $headers;
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}
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/**
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* Pulls out the HTTP status code from a response header
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*
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* @param string $header
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*
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* @return int
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*/
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public static function getStatusCodeFromHeader($header)
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{
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preg_match('|HTTP/\d\.\d\s+(\d+)\s+.*|', $header, $match);
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return (int) $match[1];
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}
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}
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