/Website/OAuth/doubanOAuth.php

<?php

/*

 * Abraham Williams (abraham@abrah.am) http://abrah.am

 *

 * Basic lib to work with Douban's OAuth beta. This is untested and should not

 * be used in production code. Douban's beta could change at anytime.

 *

 * Code based on:

 * Fire Eagle code - http://github.com/myelin/fireeagle-php-lib

 * twitterlibphp - http://github.com/poseurtech/twitterlibphp

 */



/* Load OAuth lib. You can find it at http://oauth.net */

//require_once('OAuth.php');



/**

 * Douban OAuth class

 */

class DoubanOAuth {/*{{{*/

  /* Contains the last HTTP status code returned */

  private $http_status;



  /* Contains the last API call */

  private $last_api_call;



  /* Set up the API root URL */

  public static $TO_API_ROOT = "http://www.douban.com/service";



  /**

   * Set API URLS

   */

  function requestTokenURL() { return self::$TO_API_ROOT.'/auth/request_token'; }

  function authorizeURL() { return self::$TO_API_ROOT.'/auth/authorize'; }

  function authenticateURL() { return self::$TO_API_ROOT.'/auth/authenticate'; }

  function accessTokenURL() { return self::$TO_API_ROOT.'/auth/access_token'; }



  /**

   * Debug helpers

   */

  function lastStatusCode() { return $this->http_status; }

  function lastAPICall() { return $this->last_api_call; }



  /**

   * construct DoubanOAuth object

   */

  function __construct($consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {/*{{{*/

    $this->sha1_method = new OAuthSignatureMethod_HMAC_SHA1();

    $this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);

    if (!empty($oauth_token) || !empty($oauth_token_secret)) {

      $this->token = new OAuthConsumer($oauth_token, $oauth_token_secret);

    } else {

      $this->token = NULL;

    }

  }/*}}}*/





  /**

   * Get a request_token from Douban

   *

   * @returns a key/value array containing oauth_token and oauth_token_secret

   */

  function getRequestToken() {/*{{{*/

    $r = $this->oAuthRequest($this->requestTokenURL());

	

    $token = $this->oAuthParseResponse($r);

    $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);

    return $token;

  }/*}}}*/



  /**

   * Parse a URL-encoded OAuth response

   *

   * @return a key/value array

   */

  function oAuthParseResponse($responseString) {

    $r = array();

    foreach (explode('&', $responseString) as $param) {

      $pair = explode('=', $param, 2);

      if (count($pair) != 2) continue;

      $r[urldecode($pair[0])] = urldecode($pair[1]);

    }

    return $r;

  }



  /**

   * Get the authorize URL

   *

   * @returns a string

   */

  function getAuthorizeURL($token) {/*{{{*/

    if (is_array($token)) $token = $token['oauth_token'];

    return $this->authorizeURL() . '?oauth_token=' . $token;

  }/*}}}*/

  /**

   * Get the authenticate URL

   *

   * @returns a string

   */

  function getAuthenticateURL($token) {/*{{{*/

    if (is_array($token)) $token = $token['oauth_token'];

    return $this->authenticateURL() . '?oauth_token=' . $token;

  }/*}}}*/



  /**

   * Exchange the request token and secret for an access token and

   * secret, to sign API calls.

   *

   * @returns array("oauth_token" => the access token,

   *                "oauth_token_secret" => the access secret)

   */

  function getAccessToken($token = NULL) {/*{{{*/

    $r = $this->oAuthRequest($this->accessTokenURL());

    $token = $this->oAuthParseResponse($r);

    $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);

    return $token;

  }/*}}}*/



  /**

   * Format and sign an OAuth / API request

   */

  function oAuthRequest($url, $args = array(), $method = NULL) {/*{{{*/

    if (empty($method)) $method = empty($args) ? "GET" : "POST";

    $req = OAuthRequest::from_consumer_and_token($this->consumer, $this->token, $method, $url, $args);

    $req->sign_request($this->sha1_method, $this->consumer, $this->token);

    switch ($method) {

    case 'GET': return $this->http($req->to_url());

    case 'POST': 

    	echo $req->to_postdata();

    	return $this->http($req->get_normalized_http_url(), $req->to_postdata());

    }

  }/*}}}*/



  /**

   * Make an HTTP request

   *

   * @return API results

   */

  function http($url, $post_data = null) {/*{{{*/

    $ch = curl_init();

    if (defined("CURL_CA_BUNDLE_PATH")) curl_setopt($ch, CURLOPT_CAINFO, CURL_CA_BUNDLE_PATH);

    curl_setopt($ch, CURLOPT_URL, $url);

    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);

    curl_setopt($ch, CURLOPT_TIMEOUT, 30);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    //////////////////////////////////////////////////

    ///// Set to 1 to verify Douban's SSL Cert //////

    //////////////////////////////////////////////////

    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);

    if (isset($post_data)) {

      curl_setopt($ch, CURLOPT_POST, 1);

      curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);

    }

    $response = curl_exec($ch);

    $this->http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    $this->last_api_call = $url;

    curl_close ($ch);

    return $response;

  }/*}}}*/

}/*}}}*/