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Add missing file from previous commit - refs #7605

Yannick Warnier 9 years ago
parent
commit
c29e8e2d0e

+ 0 - 1269
main/auth/external_login/facebook-php-sdk/src/base_facebook.php

@@ -1,1269 +0,0 @@
-<?php
-/**
- * Copyright 2011 Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License. You may obtain
- * a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-
-if (!function_exists('curl_init')) {
-  throw new Exception('Facebook needs the CURL PHP extension.');
-}
-if (!function_exists('json_decode')) {
-  throw new Exception('Facebook needs the JSON PHP extension.');
-}
-
-/**
- * Thrown when an API call returns an exception.
- *
- * @author Naitik Shah <naitik@facebook.com>
- */
-class FacebookApiException extends Exception
-{
-  /**
-   * The result from the API server that represents the exception information.
-   */
-  protected $result;
-
-  /**
-   * Make a new API Exception with the given result.
-   *
-   * @param array $result The result from the API server
-   */
-  public function __construct($result) {
-    $this->result = $result;
-
-    $code = isset($result['error_code']) ? $result['error_code'] : 0;
-
-    if (isset($result['error_description'])) {
-      // OAuth 2.0 Draft 10 style
-      $msg = $result['error_description'];
-    } else if (isset($result['error']) && is_array($result['error'])) {
-      // OAuth 2.0 Draft 00 style
-      $msg = $result['error']['message'];
-    } else if (isset($result['error_msg'])) {
-      // Rest server style
-      $msg = $result['error_msg'];
-    } else {
-      $msg = 'Unknown Error. Check getResult()';
-    }
-
-    parent::__construct($msg, $code);
-  }
-
-  /**
-   * Return the associated result object returned by the API server.
-   *
-   * @return array The result from the API server
-   */
-  public function getResult() {
-    return $this->result;
-  }
-
-  /**
-   * Returns the associated type for the error. This will default to
-   * 'Exception' when a type is not available.
-   *
-   * @return string
-   */
-  public function getType() {
-    if (isset($this->result['error'])) {
-      $error = $this->result['error'];
-      if (is_string($error)) {
-        // OAuth 2.0 Draft 10 style
-        return $error;
-      } else if (is_array($error)) {
-        // OAuth 2.0 Draft 00 style
-        if (isset($error['type'])) {
-          return $error['type'];
-        }
-      }
-    }
-
-    return 'Exception';
-  }
-
-  /**
-   * To make debugging easier.
-   *
-   * @return string The string representation of the error
-   */
-  public function __toString() {
-    $str = $this->getType() . ': ';
-    if ($this->code != 0) {
-      $str .= $this->code . ': ';
-    }
-    return $str . $this->message;
-  }
-}
-
-/**
- * Provides access to the Facebook Platform.  This class provides
- * a majority of the functionality needed, but the class is abstract
- * because it is designed to be sub-classed.  The subclass must
- * implement the four abstract methods listed at the bottom of
- * the file.
- *
- * @author Naitik Shah <naitik@facebook.com>
- */
-abstract class BaseFacebook
-{
-  /**
-   * Version.
-   */
-  const VERSION = '3.1.1';
-
-  /**
-   * Default options for curl.
-   */
-  public static $CURL_OPTS = array(
-    CURLOPT_CONNECTTIMEOUT => 10,
-    CURLOPT_RETURNTRANSFER => true,
-    CURLOPT_TIMEOUT        => 60,
-    CURLOPT_USERAGENT      => 'facebook-php-3.1',
-  );
-
-  /**
-   * List of query parameters that get automatically dropped when rebuilding
-   * the current URL.
-   */
-  protected static $DROP_QUERY_PARAMS = array(
-    'code',
-    'state',
-    'signed_request',
-  );
-
-  /**
-   * Maps aliases to Facebook domains.
-   */
-  public static $DOMAIN_MAP = array(
-    'api'       => 'https://api.facebook.com/',
-    'api_video' => 'https://api-video.facebook.com/',
-    'api_read'  => 'https://api-read.facebook.com/',
-    'graph'     => 'https://graph.facebook.com/',
-    'graph_video' => 'https://graph-video.facebook.com/',
-    'www'       => 'https://www.facebook.com/',
-  );
-
-  /**
-   * The Application ID.
-   *
-   * @var string
-   */
-  protected $appId;
-
-  /**
-   * The Application App Secret.
-   *
-   * @var string
-   */
-  protected $appSecret;
-
-  /**
-   * The ID of the Facebook user, or 0 if the user is logged out.
-   *
-   * @var integer
-   */
-  protected $user;
-
-  /**
-   * The data from the signed_request token.
-   */
-  protected $signedRequest;
-
-  /**
-   * A CSRF state variable to assist in the defense against CSRF attacks.
-   */
-  protected $state;
-
-  /**
-   * The OAuth access token received in exchange for a valid authorization
-   * code.  null means the access token has yet to be determined.
-   *
-   * @var string
-   */
-  protected $accessToken = null;
-
-  /**
-   * Indicates if the CURL based @ syntax for file uploads is enabled.
-   *
-   * @var boolean
-   */
-  protected $fileUploadSupport = false;
-
-  /**
-   * Initialize a Facebook Application.
-   *
-   * The configuration:
-   * - appId: the application ID
-   * - secret: the application secret
-   * - fileUpload: (optional) boolean indicating if file uploads are enabled
-   *
-   * @param array $config The application configuration
-   */
-  public function __construct($config) {
-    $this->setAppId($config['appId']);
-    $this->setAppSecret($config['secret']);
-    if (isset($config['fileUpload'])) {
-      $this->setFileUploadSupport($config['fileUpload']);
-    }
-
-    $state = $this->getPersistentData('state');
-    if (!empty($state)) {
-      $this->state = $this->getPersistentData('state');
-    }
-  }
-
-  /**
-   * Set the Application ID.
-   *
-   * @param string $appId The Application ID
-   * @return BaseFacebook
-   */
-  public function setAppId($appId) {
-    $this->appId = $appId;
-    return $this;
-  }
-
-  /**
-   * Get the Application ID.
-   *
-   * @return string the Application ID
-   */
-  public function getAppId() {
-    return $this->appId;
-  }
-
-  /**
-   * Set the App Secret.
-   *
-   * @param string $apiSecret The App Secret
-   * @return BaseFacebook
-   * @deprecated
-   */
-  public function setApiSecret($apiSecret) {
-    $this->setAppSecret($apiSecret);
-    return $this;
-  }
-
-  /**
-   * Set the App Secret.
-   *
-   * @param string $appSecret The App Secret
-   * @return BaseFacebook
-   */
-  public function setAppSecret($appSecret) {
-    $this->appSecret = $appSecret;
-    return $this;
-  }
-
-  /**
-   * Get the App Secret.
-   *
-   * @return string the App Secret
-   * @deprecated
-   */
-  public function getApiSecret() {
-    return $this->getAppSecret();
-  }
-
-  /**
-   * Get the App Secret.
-   *
-   * @return string the App Secret
-   */
-  public function getAppSecret() {
-    return $this->appSecret;
-  }
-
-  /**
-   * Set the file upload support status.
-   *
-   * @param boolean $fileUploadSupport The file upload support status.
-   * @return BaseFacebook
-   */
-  public function setFileUploadSupport($fileUploadSupport) {
-    $this->fileUploadSupport = $fileUploadSupport;
-    return $this;
-  }
-
-  /**
-   * Get the file upload support status.
-   *
-   * @return boolean true if and only if the server supports file upload.
-   */
-  public function getFileUploadSupport() {
-    return $this->fileUploadSupport;
-  }
-
-  /**
-   * DEPRECATED! Please use getFileUploadSupport instead.
-   *
-   * Get the file upload support status.
-   *
-   * @return boolean true if and only if the server supports file upload.
-   */
-  public function useFileUploadSupport() {
-    return $this->getFileUploadSupport();
-  }
-
-  /**
-   * Sets the access token for api calls.  Use this if you get
-   * your access token by other means and just want the SDK
-   * to use it.
-   *
-   * @param string $access_token an access token.
-   * @return BaseFacebook
-   */
-  public function setAccessToken($access_token) {
-    $this->accessToken = $access_token;
-    return $this;
-  }
-
-  /**
-   * Determines the access token that should be used for API calls.
-   * The first time this is called, $this->accessToken is set equal
-   * to either a valid user access token, or it's set to the application
-   * access token if a valid user access token wasn't available.  Subsequent
-   * calls return whatever the first call returned.
-   *
-   * @return string The access token
-   */
-  public function getAccessToken() {
-    if ($this->accessToken !== null) {
-      // we've done this already and cached it.  Just return.
-      return $this->accessToken;
-    }
-
-    // first establish access token to be the application
-    // access token, in case we navigate to the /oauth/access_token
-    // endpoint, where SOME access token is required.
-    $this->setAccessToken($this->getApplicationAccessToken());
-    $user_access_token = $this->getUserAccessToken();
-    if ($user_access_token) {
-      $this->setAccessToken($user_access_token);
-    }
-
-    return $this->accessToken;
-  }
-
-  /**
-   * Determines and returns the user access token, first using
-   * the signed request if present, and then falling back on
-   * the authorization code if present.  The intent is to
-   * return a valid user access token, or false if one is determined
-   * to not be available.
-   *
-   * @return string A valid user access token, or false if one
-   *                could not be determined.
-   */
-  protected function getUserAccessToken() {
-    // first, consider a signed request if it's supplied.
-    // if there is a signed request, then it alone determines
-    // the access token.
-    $signed_request = $this->getSignedRequest();
-    if ($signed_request) {
-      // apps.facebook.com hands the access_token in the signed_request
-      if (array_key_exists('oauth_token', $signed_request)) {
-        $access_token = $signed_request['oauth_token'];
-        $this->setPersistentData('access_token', $access_token);
-        return $access_token;
-      }
-
-      // the JS SDK puts a code in with the redirect_uri of ''
-      if (array_key_exists('code', $signed_request)) {
-        $code = $signed_request['code'];
-        $access_token = $this->getAccessTokenFromCode($code, '');
-        if ($access_token) {
-          $this->setPersistentData('code', $code);
-          $this->setPersistentData('access_token', $access_token);
-          return $access_token;
-        }
-      }
-
-      // signed request states there's no access token, so anything
-      // stored should be cleared.
-      $this->clearAllPersistentData();
-      return false; // respect the signed request's data, even
-                    // if there's an authorization code or something else
-    }
-
-    $code = $this->getCode();
-    if ($code && $code != $this->getPersistentData('code')) {
-      $access_token = $this->getAccessTokenFromCode($code);
-      if ($access_token) {
-        $this->setPersistentData('code', $code);
-        $this->setPersistentData('access_token', $access_token);
-        return $access_token;
-      }
-
-      // code was bogus, so everything based on it should be invalidated.
-      $this->clearAllPersistentData();
-      return false;
-    }
-
-    // as a fallback, just return whatever is in the persistent
-    // store, knowing nothing explicit (signed request, authorization
-    // code, etc.) was present to shadow it (or we saw a code in $_REQUEST,
-    // but it's the same as what's in the persistent store)
-    return $this->getPersistentData('access_token');
-  }
-
-  /**
-   * Retrieve the signed request, either from a request parameter or,
-   * if not present, from a cookie.
-   *
-   * @return string the signed request, if available, or null otherwise.
-   */
-  public function getSignedRequest() {
-    if (!$this->signedRequest) {
-      if (isset($_REQUEST['signed_request'])) {
-        $this->signedRequest = $this->parseSignedRequest(
-          $_REQUEST['signed_request']);
-      } else if (isset($_COOKIE[$this->getSignedRequestCookieName()])) {
-        $this->signedRequest = $this->parseSignedRequest(
-          $_COOKIE[$this->getSignedRequestCookieName()]);
-      }
-    }
-    return $this->signedRequest;
-  }
-
-  /**
-   * Get the UID of the connected user, or 0
-   * if the Facebook user is not connected.
-   *
-   * @return string the UID if available.
-   */
-  public function getUser() {
-    if ($this->user !== null) {
-      // we've already determined this and cached the value.
-      return $this->user;
-    }
-
-    return $this->user = $this->getUserFromAvailableData();
-  }
-
-  /**
-   * Determines the connected user by first examining any signed
-   * requests, then considering an authorization code, and then
-   * falling back to any persistent store storing the user.
-   *
-   * @return integer The id of the connected Facebook user,
-   *                 or 0 if no such user exists.
-   */
-  protected function getUserFromAvailableData() {
-    // if a signed request is supplied, then it solely determines
-    // who the user is.
-    $signed_request = $this->getSignedRequest();
-    if ($signed_request) {
-      if (array_key_exists('user_id', $signed_request)) {
-        $user = $signed_request['user_id'];
-        $this->setPersistentData('user_id', $signed_request['user_id']);
-        return $user;
-      }
-
-      // if the signed request didn't present a user id, then invalidate
-      // all entries in any persistent store.
-      $this->clearAllPersistentData();
-      return 0;
-    }
-
-    $user = $this->getPersistentData('user_id', $default = 0);
-    $persisted_access_token = $this->getPersistentData('access_token');
-
-    // use access_token to fetch user id if we have a user access_token, or if
-    // the cached access token has changed.
-    $access_token = $this->getAccessToken();
-    if ($access_token &&
-        $access_token != $this->getApplicationAccessToken() &&
-        !($user && $persisted_access_token == $access_token)) {
-      $user = $this->getUserFromAccessToken();
-      if ($user) {
-        $this->setPersistentData('user_id', $user);
-      } else {
-        $this->clearAllPersistentData();
-      }
-    }
-
-    return $user;
-  }
-
-  /**
-   * Get a Login URL for use with redirects. By default, full page redirect is
-   * assumed. If you are using the generated URL with a window.open() call in
-   * JavaScript, you can pass in display=popup as part of the $params.
-   *
-   * The parameters:
-   * - redirect_uri: the url to go to after a successful login
-   * - scope: comma separated list of requested extended perms
-   *
-   * @param array $params Provide custom parameters
-   * @return string The URL for the login flow
-   */
-  public function getLoginUrl($params=array()) {
-    $this->establishCSRFTokenState();
-    $currentUrl = $this->getCurrentUrl();
-
-    // if 'scope' is passed as an array, convert to comma separated list
-    $scopeParams = isset($params['scope']) ? $params['scope'] : null;
-    if ($scopeParams && is_array($scopeParams)) {
-      $params['scope'] = implode(',', $scopeParams);
-    }
-
-    return $this->getUrl(
-      'www',
-      'dialog/oauth',
-      array_merge(array(
-                    'client_id' => $this->getAppId(),
-                    'redirect_uri' => $currentUrl, // possibly overwritten
-                    'state' => $this->state),
-                  $params));
-  }
-
-  /**
-   * Get a Logout URL suitable for use with redirects.
-   *
-   * The parameters:
-   * - next: the url to go to after a successful logout
-   *
-   * @param array $params Provide custom parameters
-   * @return string The URL for the logout flow
-   */
-  public function getLogoutUrl($params=array()) {
-    return $this->getUrl(
-      'www',
-      'logout.php',
-      array_merge(array(
-        'next' => $this->getCurrentUrl(),
-        'access_token' => $this->getAccessToken(),
-      ), $params)
-    );
-  }
-
-  /**
-   * Get a login status URL to fetch the status from Facebook.
-   *
-   * The parameters:
-   * - ok_session: the URL to go to if a session is found
-   * - no_session: the URL to go to if the user is not connected
-   * - no_user: the URL to go to if the user is not signed into facebook
-   *
-   * @param array $params Provide custom parameters
-   * @return string The URL for the logout flow
-   */
-  public function getLoginStatusUrl($params=array()) {
-    return $this->getUrl(
-      'www',
-      'extern/login_status.php',
-      array_merge(array(
-        'api_key' => $this->getAppId(),
-        'no_session' => $this->getCurrentUrl(),
-        'no_user' => $this->getCurrentUrl(),
-        'ok_session' => $this->getCurrentUrl(),
-        'session_version' => 3,
-      ), $params)
-    );
-  }
-
-  /**
-   * Make an API call.
-   *
-   * @return mixed The decoded response
-   */
-  public function api(/* polymorphic */) {
-    $args = func_get_args();
-    if (is_array($args[0])) {
-      return $this->_restserver($args[0]);
-    } else {
-      return call_user_func_array(array($this, '_graph'), $args);
-    }
-  }
-
-  /**
-   * Constructs and returns the name of the cookie that
-   * potentially houses the signed request for the app user.
-   * The cookie is not set by the BaseFacebook class, but
-   * it may be set by the JavaScript SDK.
-   *
-   * @return string the name of the cookie that would house
-   *         the signed request value.
-   */
-  protected function getSignedRequestCookieName() {
-    return 'fbsr_'.$this->getAppId();
-  }
-
-  /**
-   * Constructs and returns the name of the coookie that potentially contain
-   * metadata. The cookie is not set by the BaseFacebook class, but it may be
-   * set by the JavaScript SDK.
-   *
-   * @return string the name of the cookie that would house metadata.
-   */
-  protected function getMetadataCookieName() {
-    return 'fbm_'.$this->getAppId();
-  }
-
-  /**
-   * Get the authorization code from the query parameters, if it exists,
-   * and otherwise return false to signal no authorization code was
-   * discoverable.
-   *
-   * @return mixed The authorization code, or false if the authorization
-   *               code could not be determined.
-   */
-  protected function getCode() {
-    if (isset($_REQUEST['code'])) {
-      if ($this->state !== null &&
-          isset($_REQUEST['state']) &&
-          $this->state === $_REQUEST['state']) {
-
-        // CSRF state has done its job, so clear it
-        $this->state = null;
-        $this->clearPersistentData('state');
-        return $_REQUEST['code'];
-      } else {
-        self::errorLog('CSRF state token does not match one provided.');
-        return false;
-      }
-    }
-
-    return false;
-  }
-
-  /**
-   * Retrieves the UID with the understanding that
-   * $this->accessToken has already been set and is
-   * seemingly legitimate.  It relies on Facebook's Graph API
-   * to retrieve user information and then extract
-   * the user ID.
-   *
-   * @return integer Returns the UID of the Facebook user, or 0
-   *                 if the Facebook user could not be determined.
-   */
-  protected function getUserFromAccessToken() {
-    try {
-      $user_info = $this->api('/me');
-      return $user_info['id'];
-    } catch (FacebookApiException $e) {
-      return 0;
-    }
-  }
-
-  /**
-   * Returns the access token that should be used for logged out
-   * users when no authorization code is available.
-   *
-   * @return string The application access token, useful for gathering
-   *                public information about users and applications.
-   */
-  protected function getApplicationAccessToken() {
-    return $this->appId.'|'.$this->appSecret;
-  }
-
-  /**
-   * Lays down a CSRF state token for this process.
-   *
-   * @return void
-   */
-  protected function establishCSRFTokenState() {
-    if ($this->state === null) {
-      $this->state = md5(uniqid(mt_rand(), true));
-      $this->setPersistentData('state', $this->state);
-    }
-  }
-
-  /**
-   * Retrieves an access token for the given authorization code
-   * (previously generated from www.facebook.com on behalf of
-   * a specific user).  The authorization code is sent to graph.facebook.com
-   * and a legitimate access token is generated provided the access token
-   * and the user for which it was generated all match, and the user is
-   * either logged in to Facebook or has granted an offline access permission.
-   *
-   * @param string $code An authorization code.
-   * @return mixed An access token exchanged for the authorization code, or
-   *               false if an access token could not be generated.
-   */
-  protected function getAccessTokenFromCode($code, $redirect_uri = null) {
-    if (empty($code)) {
-      return false;
-    }
-
-    if ($redirect_uri === null) {
-      $redirect_uri = $this->getCurrentUrl();
-    }
-
-    try {
-      // need to circumvent json_decode by calling _oauthRequest
-      // directly, since response isn't JSON format.
-      $access_token_response =
-        $this->_oauthRequest(
-          $this->getUrl('graph', '/oauth/access_token'),
-          $params = array('client_id' => $this->getAppId(),
-                          'client_secret' => $this->getAppSecret(),
-                          'redirect_uri' => $redirect_uri,
-                          'code' => $code));
-    } catch (FacebookApiException $e) {
-      // most likely that user very recently revoked authorization.
-      // In any event, we don't have an access token, so say so.
-      return false;
-    }
-
-    if (empty($access_token_response)) {
-      return false;
-    }
-
-    $response_params = array();
-    parse_str($access_token_response, $response_params);
-    if (!isset($response_params['access_token'])) {
-      return false;
-    }
-
-    return $response_params['access_token'];
-  }
-
-  /**
-   * Invoke the old restserver.php endpoint.
-   *
-   * @param array $params Method call object
-   *
-   * @return mixed The decoded response object
-   * @throws FacebookApiException
-   */
-  protected function _restserver($params) {
-    // generic application level parameters
-    $params['api_key'] = $this->getAppId();
-    $params['format'] = 'json-strings';
-
-    $result = json_decode($this->_oauthRequest(
-      $this->getApiUrl($params['method']),
-      $params
-    ), true);
-
-    // results are returned, errors are thrown
-    if (is_array($result) && isset($result['error_code'])) {
-      $this->throwAPIException($result);
-    }
-
-    if ($params['method'] === 'auth.expireSession' ||
-        $params['method'] === 'auth.revokeAuthorization') {
-      $this->destroySession();
-    }
-
-    return $result;
-  }
-
-  /**
-   * Return true if this is video post.
-   *
-   * @param string $path The path
-   * @param string $method The http method (default 'GET')
-   *
-   * @return boolean true if this is video post
-   */
-  protected function isVideoPost($path, $method = 'GET') {
-    if ($method == 'POST' && preg_match("/^(\/)(.+)(\/)(videos)$/", $path)) {
-      return true;
-    }
-    return false;
-  }
-
-  /**
-   * Invoke the Graph API.
-   *
-   * @param string $path The path (required)
-   * @param string $method The http method (default 'GET')
-   * @param array $params The query/post data
-   *
-   * @return mixed The decoded response object
-   * @throws FacebookApiException
-   */
-  protected function _graph($path, $method = 'GET', $params = array()) {
-    if (is_array($method) && empty($params)) {
-      $params = $method;
-      $method = 'GET';
-    }
-    $params['method'] = $method; // method override as we always do a POST
-
-    if ($this->isVideoPost($path, $method)) {
-      $domainKey = 'graph_video';
-    } else {
-      $domainKey = 'graph';
-    }
-
-    $result = json_decode($this->_oauthRequest(
-      $this->getUrl($domainKey, $path),
-      $params
-    ), true);
-
-    // results are returned, errors are thrown
-    if (is_array($result) && isset($result['error'])) {
-      $this->throwAPIException($result);
-    }
-
-    return $result;
-  }
-
-  /**
-   * Make a OAuth Request.
-   *
-   * @param string $url The path (required)
-   * @param array $params The query/post data
-   *
-   * @return string The decoded response object
-   * @throws FacebookApiException
-   */
-  protected function _oauthRequest($url, $params) {
-    if (!isset($params['access_token'])) {
-      $params['access_token'] = $this->getAccessToken();
-    }
-
-    // json_encode all params values that are not strings
-    foreach ($params as $key => $value) {
-      if (!is_string($value)) {
-        $params[$key] = json_encode($value);
-      }
-    }
-
-    return $this->makeRequest($url, $params);
-  }
-
-  /**
-   * Makes an HTTP request. This method can be overridden by subclasses if
-   * developers want to do fancier things or use something other than curl to
-   * make the request.
-   *
-   * @param string $url The URL to make the request to
-   * @param array $params The parameters to use for the POST body
-   * @param CurlHandler $ch Initialized curl handle
-   *
-   * @return string The response text
-   */
-  protected function makeRequest($url, $params, $ch=null) {
-    if (!$ch) {
-      $ch = curl_init();
-    }
-
-    $opts = self::$CURL_OPTS;
-    if ($this->getFileUploadSupport()) {
-      $opts[CURLOPT_POSTFIELDS] = $params;
-    } else {
-      $opts[CURLOPT_POSTFIELDS] = http_build_query($params, null, '&');
-    }
-    $opts[CURLOPT_URL] = $url;
-
-    // disable the 'Expect: 100-continue' behaviour. This causes CURL to wait
-    // for 2 seconds if the server does not support this header.
-    if (isset($opts[CURLOPT_HTTPHEADER])) {
-      $existing_headers = $opts[CURLOPT_HTTPHEADER];
-      $existing_headers[] = 'Expect:';
-      $opts[CURLOPT_HTTPHEADER] = $existing_headers;
-    } else {
-      $opts[CURLOPT_HTTPHEADER] = array('Expect:');
-    }
-
-    curl_setopt_array($ch, $opts);
-    $result = curl_exec($ch);
-
-    if (curl_errno($ch) == 60) { // CURLE_SSL_CACERT
-      self::errorLog('Invalid or no certificate authority found, '.
-                     'using bundled information');
-      curl_setopt($ch, CURLOPT_CAINFO,
-                  dirname(__FILE__) . '/fb_ca_chain_bundle.crt');
-      $result = curl_exec($ch);
-    }
-
-    if ($result === false) {
-      $e = new FacebookApiException(array(
-        'error_code' => curl_errno($ch),
-        'error' => array(
-        'message' => curl_error($ch),
-        'type' => 'CurlException',
-        ),
-      ));
-      curl_close($ch);
-      throw $e;
-    }
-    curl_close($ch);
-    return $result;
-  }
-
-  /**
-   * Parses a signed_request and validates the signature.
-   *
-   * @param string $signed_request A signed token
-   * @return array The payload inside it or null if the sig is wrong
-   */
-  protected function parseSignedRequest($signed_request) {
-    list($encoded_sig, $payload) = explode('.', $signed_request, 2);
-
-    // decode the data
-    $sig = self::base64UrlDecode($encoded_sig);
-    $data = json_decode(self::base64UrlDecode($payload), true);
-
-    if (strtoupper($data['algorithm']) !== 'HMAC-SHA256') {
-      self::errorLog('Unknown algorithm. Expected HMAC-SHA256');
-      return null;
-    }
-
-    // check sig
-    $expected_sig = hash_hmac('sha256', $payload,
-                              $this->getAppSecret(), $raw = true);
-    if ($sig !== $expected_sig) {
-      self::errorLog('Bad Signed JSON signature!');
-      return null;
-    }
-
-    return $data;
-  }
-
-  /**
-   * Build the URL for api given parameters.
-   *
-   * @param $method String the method name.
-   * @return string The URL for the given parameters
-   */
-  protected function getApiUrl($method) {
-    static $READ_ONLY_CALLS =
-      array('admin.getallocation' => 1,
-            'admin.getappproperties' => 1,
-            'admin.getbannedusers' => 1,
-            'admin.getlivestreamvialink' => 1,
-            'admin.getmetrics' => 1,
-            'admin.getrestrictioninfo' => 1,
-            'application.getpublicinfo' => 1,
-            'auth.getapppublickey' => 1,
-            'auth.getsession' => 1,
-            'auth.getsignedpublicsessiondata' => 1,
-            'comments.get' => 1,
-            'connect.getunconnectedfriendscount' => 1,
-            'dashboard.getactivity' => 1,
-            'dashboard.getcount' => 1,
-            'dashboard.getglobalnews' => 1,
-            'dashboard.getnews' => 1,
-            'dashboard.multigetcount' => 1,
-            'dashboard.multigetnews' => 1,
-            'data.getcookies' => 1,
-            'events.get' => 1,
-            'events.getmembers' => 1,
-            'fbml.getcustomtags' => 1,
-            'feed.getappfriendstories' => 1,
-            'feed.getregisteredtemplatebundlebyid' => 1,
-            'feed.getregisteredtemplatebundles' => 1,
-            'fql.multiquery' => 1,
-            'fql.query' => 1,
-            'friends.arefriends' => 1,
-            'friends.get' => 1,
-            'friends.getappusers' => 1,
-            'friends.getlists' => 1,
-            'friends.getmutualfriends' => 1,
-            'gifts.get' => 1,
-            'groups.get' => 1,
-            'groups.getmembers' => 1,
-            'intl.gettranslations' => 1,
-            'links.get' => 1,
-            'notes.get' => 1,
-            'notifications.get' => 1,
-            'pages.getinfo' => 1,
-            'pages.isadmin' => 1,
-            'pages.isappadded' => 1,
-            'pages.isfan' => 1,
-            'permissions.checkavailableapiaccess' => 1,
-            'permissions.checkgrantedapiaccess' => 1,
-            'photos.get' => 1,
-            'photos.getalbums' => 1,
-            'photos.gettags' => 1,
-            'profile.getinfo' => 1,
-            'profile.getinfooptions' => 1,
-            'stream.get' => 1,
-            'stream.getcomments' => 1,
-            'stream.getfilters' => 1,
-            'users.getinfo' => 1,
-            'users.getloggedinuser' => 1,
-            'users.getstandardinfo' => 1,
-            'users.hasapppermission' => 1,
-            'users.isappuser' => 1,
-            'users.isverified' => 1,
-            'video.getuploadlimits' => 1);
-    $name = 'api';
-    if (isset($READ_ONLY_CALLS[strtolower($method)])) {
-      $name = 'api_read';
-    } else if (strtolower($method) == 'video.upload') {
-      $name = 'api_video';
-    }
-    return self::getUrl($name, 'restserver.php');
-  }
-
-  /**
-   * Build the URL for given domain alias, path and parameters.
-   *
-   * @param $name string The name of the domain
-   * @param $path string Optional path (without a leading slash)
-   * @param $params array Optional query parameters
-   *
-   * @return string The URL for the given parameters
-   */
-  protected function getUrl($name, $path='', $params=array()) {
-    $url = self::$DOMAIN_MAP[$name];
-    if ($path) {
-      if ($path[0] === '/') {
-        $path = substr($path, 1);
-      }
-      $url .= $path;
-    }
-    if ($params) {
-      $url .= '?' . http_build_query($params, null, '&');
-    }
-
-    return $url;
-  }
-
-  /**
-   * Returns the Current URL, stripping it of known FB parameters that should
-   * not persist.
-   *
-   * @return string The current URL
-   */
-  protected function getCurrentUrl() {
-    if (isset($_SERVER['HTTPS']) &&
-        ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1) ||
-        isset($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
-        $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
-      $protocol = 'https://';
-    }
-    else {
-      $protocol = 'http://';
-    }
-    $currentUrl = $protocol . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
-    $parts = parse_url($currentUrl);
-
-    $query = '';
-    if (!empty($parts['query'])) {
-      // drop known fb params
-      $params = explode('&', $parts['query']);
-      $retained_params = array();
-      foreach ($params as $param) {
-        if ($this->shouldRetainParam($param)) {
-          $retained_params[] = $param;
-        }
-      }
-
-      if (!empty($retained_params)) {
-        $query = '?'.implode($retained_params, '&');
-      }
-    }
-
-    // use port if non default
-    $port =
-      isset($parts['port']) &&
-      (($protocol === 'http://' && $parts['port'] !== 80) ||
-       ($protocol === 'https://' && $parts['port'] !== 443))
-      ? ':' . $parts['port'] : '';
-
-    // rebuild
-    return $protocol . $parts['host'] . $port . $parts['path'] . $query;
-  }
-
-  /**
-   * Returns true if and only if the key or key/value pair should
-   * be retained as part of the query string.  This amounts to
-   * a brute-force search of the very small list of Facebook-specific
-   * params that should be stripped out.
-   *
-   * @param string $param A key or key/value pair within a URL's query (e.g.
-   *                     'foo=a', 'foo=', or 'foo'.
-   *
-   * @return boolean
-   */
-  protected function shouldRetainParam($param) {
-    foreach (self::$DROP_QUERY_PARAMS as $drop_query_param) {
-      if (strpos($param, $drop_query_param.'=') === 0) {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  /**
-   * Analyzes the supplied result to see if it was thrown
-   * because the access token is no longer valid.  If that is
-   * the case, then we destroy the session.
-   *
-   * @param $result array A record storing the error message returned
-   *                      by a failed API call.
-   */
-  protected function throwAPIException($result) {
-    $e = new FacebookApiException($result);
-    switch ($e->getType()) {
-      // OAuth 2.0 Draft 00 style
-      case 'OAuthException':
-        // OAuth 2.0 Draft 10 style
-      case 'invalid_token':
-        // REST server errors are just Exceptions
-      case 'Exception':
-        $message = $e->getMessage();
-        if ((strpos($message, 'Error validating access token') !== false) ||
-            (strpos($message, 'Invalid OAuth access token') !== false) ||
-            (strpos($message, 'An active access token must be used') !== false)
-        ) {
-          $this->destroySession();
-        }
-        break;
-    }
-
-    throw $e;
-  }
-
-
-  /**
-   * Prints to the error log if you aren't in command line mode.
-   *
-   * @param string $msg Log message
-   */
-  protected static function errorLog($msg) {
-    // disable error log if we are running in a CLI environment
-    // @codeCoverageIgnoreStart
-    if (php_sapi_name() != 'cli') {
-      error_log($msg);
-    }
-    // uncomment this if you want to see the errors on the page
-    // print 'error_log: '.$msg."\n";
-    // @codeCoverageIgnoreEnd
-  }
-
-  /**
-   * Base64 encoding that doesn't need to be urlencode()ed.
-   * Exactly the same as base64_encode except it uses
-   *   - instead of +
-   *   _ instead of /
-   *
-   * @param string $input base64UrlEncoded string
-   * @return string
-   */
-  protected static function base64UrlDecode($input) {
-    return base64_decode(strtr($input, '-_', '+/'));
-  }
-
-  /**
-   * Destroy the current session
-   */
-  public function destroySession() {
-    $this->accessToken = null;
-    $this->signedRequest = null;
-    $this->user = null;
-    $this->clearAllPersistentData();
-
-    // Javascript sets a cookie that will be used in getSignedRequest that we
-    // need to clear if we can
-    $cookie_name = $this->getSignedRequestCookieName();
-    if (array_key_exists($cookie_name, $_COOKIE)) {
-      unset($_COOKIE[$cookie_name]);
-      if (!headers_sent()) {
-        // The base domain is stored in the metadata cookie if not we fallback
-        // to the current hostname
-        $base_domain = '.'. $_SERVER['HTTP_HOST'];
-
-        $metadata = $this->getMetadataCookie();
-        if (array_key_exists('base_domain', $metadata) &&
-            !empty($metadata['base_domain'])) {
-          $base_domain = $metadata['base_domain'];
-        }
-
-        setcookie($cookie_name, '', 0, '/', $base_domain);
-      } else {
-        self::errorLog(
-          'There exists a cookie that we wanted to clear that we couldn\'t '.
-          'clear because headers was already sent. Make sure to do the first '.
-          'API call before outputing anything'
-        );
-      }
-    }
-  }
-
-  /**
-   * Parses the metadata cookie that our Javascript API set
-   *
-   * @return  an array mapping key to value
-   */
-  protected function getMetadataCookie() {
-    $cookie_name = $this->getMetadataCookieName();
-    if (!array_key_exists($cookie_name, $_COOKIE)) {
-      return array();
-    }
-
-    // The cookie value can be wrapped in "-characters so remove them
-    $cookie_value = trim($_COOKIE[$cookie_name], '"');
-
-    if (empty($cookie_value)) {
-      return array();
-    }
-
-    $parts = explode('&', $cookie_value);
-    $metadata = array();
-    foreach ($parts as $part) {
-      $pair = explode('=', $part, 2);
-      if (!empty($pair[0])) {
-        $metadata[urldecode($pair[0])] =
-          (count($pair) > 1) ? urldecode($pair[1]) : '';
-      }
-    }
-
-    return $metadata;
-  }
-
-  /**
-   * Each of the following four methods should be overridden in
-   * a concrete subclass, as they are in the provided Facebook class.
-   * The Facebook class uses PHP sessions to provide a primitive
-   * persistent store, but another subclass--one that you implement--
-   * might use a database, memcache, or an in-memory cache.
-   *
-   * @see Facebook
-   */
-
-  /**
-   * Stores the given ($key, $value) pair, so that future calls to
-   * getPersistentData($key) return $value. This call may be in another request.
-   *
-   * @param string $key
-   * @param array $value
-   *
-   * @return void
-   */
-  abstract protected function setPersistentData($key, $value);
-
-  /**
-   * Get the data for $key, persisted by BaseFacebook::setPersistentData()
-   *
-   * @param string $key The key of the data to retrieve
-   * @param boolean $default The default value to return if $key is not found
-   *
-   * @return mixed
-   */
-  abstract protected function getPersistentData($key, $default = false);
-
-  /**
-   * Clear the data with $key from the persistent storage
-   *
-   * @param string $key
-   * @return void
-   */
-  abstract protected function clearPersistentData($key);
-
-  /**
-   * Clear all data from the persistent storage
-   *
-   * @return void
-   */
-  abstract protected function clearAllPersistentData();
-}

+ 0 - 93
main/auth/external_login/facebook-php-sdk/src/facebook.php

@@ -1,93 +0,0 @@
-<?php
-/**
- * Copyright 2011 Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License. You may obtain
- * a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- */
-
-require_once "base_facebook.php";
-
-/**
- * Extends the BaseFacebook class with the intent of using
- * PHP sessions to store user ids and access tokens.
- */
-class Facebook extends BaseFacebook
-{
-  /**
-   * Identical to the parent constructor, except that
-   * we start a PHP session to store the user ID and
-   * access token if during the course of execution
-   * we discover them.
-   *
-   * @param Array $config the application configuration.
-   * @see BaseFacebook::__construct in facebook.php
-   */
-  public function __construct($config) {
-    if (!session_id()) {
-      session_start();
-    }
-    parent::__construct($config);
-  }
-
-  protected static $kSupportedKeys =
-    array('state', 'code', 'access_token', 'user_id');
-
-  /**
-   * Provides the implementations of the inherited abstract
-   * methods.  The implementation uses PHP sessions to maintain
-   * a store for authorization codes, user ids, CSRF states, and
-   * access tokens.
-   */
-  protected function setPersistentData($key, $value) {
-    if (!in_array($key, self::$kSupportedKeys)) {
-      self::errorLog('Unsupported key passed to setPersistentData.');
-      return;
-    }
-
-    $session_var_name = $this->constructSessionVariableName($key);
-    $_SESSION[$session_var_name] = $value;
-  }
-
-  protected function getPersistentData($key, $default = false) {
-    if (!in_array($key, self::$kSupportedKeys)) {
-      self::errorLog('Unsupported key passed to getPersistentData.');
-      return $default;
-    }
-
-    $session_var_name = $this->constructSessionVariableName($key);
-    return isset($_SESSION[$session_var_name]) ?
-      $_SESSION[$session_var_name] : $default;
-  }
-
-  protected function clearPersistentData($key) {
-    if (!in_array($key, self::$kSupportedKeys)) {
-      self::errorLog('Unsupported key passed to clearPersistentData.');
-      return;
-    }
-
-    $session_var_name = $this->constructSessionVariableName($key);
-    unset($_SESSION[$session_var_name]);
-  }
-
-  protected function clearAllPersistentData() {
-    foreach (self::$kSupportedKeys as $key) {
-      $this->clearPersistentData($key);
-    }
-  }
-
-  protected function constructSessionVariableName($key) {
-    return implode('_', array('fb',
-                              $this->getAppId(),
-                              $key));
-  }
-}

+ 0 - 121
main/auth/external_login/facebook-php-sdk/src/fb_ca_chain_bundle.crt

@@ -1,121 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIFgjCCBGqgAwIBAgIQDKKbZcnESGaLDuEaVk6fQjANBgkqhkiG9w0BAQUFADBm
-MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
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-NC5kaWdpY2VydC5jb20vY2EzLWZiLmNybDCCAcYGA1UdIASCAb0wggG5MIIBtQYL
-YIZIAYb9bAEDAAEwggGkMDoGCCsGAQUFBwIBFi5odHRwOi8vd3d3LmRpZ2ljZXJ0
-LmNvbS9zc2wtY3BzLXJlcG9zaXRvcnkuaHRtMIIBZAYIKwYBBQUHAgIwggFWHoIB
-UgBBAG4AeQAgAHUAcwBlACAAbwBmACAAdABoAGkAcwAgAEMAZQByAHQAaQBmAGkA
-YwBhAHQAZQAgAGMAbwBuAHMAdABpAHQAdQB0AGUAcwAgAGEAYwBjAGUAcAB0AGEA
-bgBjAGUAIABvAGYAIAB0AGgAZQAgAEQAaQBnAGkAQwBlAHIAdAAgAEMAUAAvAEMA
-UABTACAAYQBuAGQAIAB0AGgAZQAgAFIAZQBsAHkAaQBuAGcAIABQAGEAcgB0AHkA
-IABBAGcAcgBlAGUAbQBlAG4AdAAgAHcAaABpAGMAaAAgAGwAaQBtAGkAdAAgAGwA
-aQBhAGIAaQBsAGkAdAB5ACAAYQBuAGQAIABhAHIAZQAgAGkAbgBjAG8AcgBwAG8A
-cgBhAHQAZQBkACAAaABlAHIAZQBpAG4AIABiAHkAIAByAGUAZgBlAHIAZQBuAGMA
-ZQAuMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjANBgkqhkiG9w0BAQUF
-AAOCAQEACOkTIdxMy11+CKrbGNLBSg5xHaTvu/v1wbyn3dO/mf68pPfJnX6ShPYy
-4XM4Vk0x4uaFaU4wAGke+nCKGi5dyg0Esg7nemLNKEJaFAJZ9enxZm334lSCeARy
-wlDtxULGOFRyGIZZPmbV2eNq5xdU/g3IuBEhL722mTpAye9FU/J8Wsnw54/gANyO
-Gzkewigua8ip8Lbs9Cht399yAfbfhUP1DrAm/xEcnHrzPr3cdCtOyJaM6SRPpRqH
-ITK5Nc06tat9lXVosSinT3KqydzxBYua9gCFFiR3x3DgZfvXkC6KDdUlDrNcJUub
-a1BHnLLP4mxTHL6faAXYd05IxNn/IA==
------END CERTIFICATE-----
------BEGIN CERTIFICATE-----
-MIIGVTCCBT2gAwIBAgIQCFH5WYFBRcq94CTiEsnCDjANBgkqhkiG9w0BAQUFADBs
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