1 <?php

     2 /**

     3  * Zend Framework

     4  *

     5  * LICENSE

     6  *

     7  * This source file is subject to the new BSD license that is bundled

     8  * with this package in the file LICENSE.txt.

     9  * It is also available through the world-wide-web at this URL:

    10  * http://framework.zend.com/license/new-bsd

    11  * If you did not receive a copy of the license and are unable to

    12  * obtain it through the world-wide-web, please send an email

    13  * to license@zend.com so we can send you a copy immediately.

    14  *

    15  * @category   Zend

    16  * @package    Zend_Service_ShortUrl

    17  * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

    18  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    19  * @version    $Id$

    20  */

    21 

    22 /**

    23  * @see Zend_Service_ShortUrl_AbstractShortener

    24  */

    25 require_once 'Zend/Service/ShortUrl/AbstractShortener.php';

    26 

    27 /**

    28  * Bit.ly API implementation

    29  *

    30  * @category   Zend

    31  * @package    Zend_Service_ShortUrl

    32  * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)

    33  * @license    http://framework.zend.com/license/new-bsd     New BSD License

    34  */

    35 class Zend_Service_ShortUrl_BitLy extends Zend_Service_ShortUrl_AbstractShortener

    36 {

    37 

    38     /**

    39      * Base URI of the service

    40      *

    41      * @var string

    42      */

    43     protected $_apiUri = 'http://api.bitly.com';

    44 

    45     /**

    46      * user login name

    47      *

    48      * @var string

    49      */

    50     protected $_loginName;

    51 

    52     /**

    53      * user API key or application access token

    54      *

    55      * @var string

    56      */

    57     protected $_apiKey;

    58 

    59     /**

    60      * @param string $login user login name or application access token

    61      * @param null|string $apiKey user API key

    62      */

    63     public function __construct($login, $apiKey = null)

    64     {

    65         if(null === $apiKey) {

    66             $this->setOAuthAccessToken($login);

    67         } else {

    68             $this->setApiLogin($login, $apiKey);

    69         }

    70     }

    71 

    72     /**

    73      * set OAuth credentials

    74      *

    75      * @param $accessToken

    76      * @return Zend_Service_ShortUrl_BitLy

    77      */

    78     public function setOAuthAccessToken($accessToken)

    79     {

    80         $this->_apiKey = $accessToken;

    81         $this->_loginName = null;

    82         return $this;

    83     }

    84 

    85     /**

    86      * set login credentials

    87      *

    88      * @param $login

    89      * @param $apiKey

    90      * @return Zend_Service_ShortUrl_BitLy

    91      */

    92     public function setApiLogin($login, $apiKey)

    93     {

    94         $this->_apiKey = $apiKey;

    95         $this->_loginName = $login;

    96         return $this;

    97     }

    98 

    99     /**

   100      * prepare http client

   101      * @return void

   102      */

   103     protected function _setAccessParameter()

   104     {

   105         if(null === $this->_loginName) {

   106             //OAuth login

   107             $this->getHttpClient()->setParameterGet('access_token', $this->_apiKey);

   108         } else {

   109             //login/APIKey authentication

   110             $this->getHttpClient()->setParameterGet('login',$this->_loginName);

   111             $this->getHttpClient()->setParameterGet('apiKey',$this->_apiKey);

   112         }

   113     }

   114 

   115     /**

   116      * handle bit.ly response

   117      *

   118      * @return string

   119      * @throws Zend_Service_ShortUrl_Exception

   120      */

   121     protected function _processRequest()

   122     {

   123         $response = $this->getHttpClient()->request();

   124         if(500 == $response->getStatus()) {

   125             throw new Zend_Service_ShortUrl_Exception('Bit.ly :: '.$response->getBody());

   126         }

   127         return $response->getBody();

   128     }

   129 

   130     /**

   131      * This function shortens long url

   132      *

   133      * @param  string $url URL to Shorten

   134      * @throws Zend_Service_ShortUrl_Exception if bit.ly reports an error

   135      * @return string Shortened Url

   136      */

   137     public function shorten($url)

   138     {

   139         $this->_validateUri($url);

   140         $this->_setAccessParameter();

   141 

   142         $this->getHttpClient()->setUri($this->_apiUri.'/v3/shorten');

   143         $this->getHttpClient()->setParameterGet('longUrl',$url);

   144         $this->getHttpClient()->setParameterGet('format','txt');

   145 

   146         return $this->_processRequest();

   147     }

   148 

   149     /**

   150      * Reveals target for short URL

   151      *

   152      * @param  string $shortenedUrl URL to reveal target of

   153      * @throws Zend_Service_ShortUrl_Exception if bit.ly reports an error

   154      * @return string Unshortened Url

   155      */

   156     public function unshorten($shortenedUrl)

   157     {

   158         $this->_validateUri($shortenedUrl);

   159         $this->_setAccessParameter();

   160 

   161         $this->getHttpClient()->setUri($this->_apiUri.'/v3/expand');

   162         $this->getHttpClient()->setParameterGet('shortUrl',$shortenedUrl);

   163         $this->getHttpClient()->setParameterGet('format','txt');

   164 

   165         return $this->_processRequest();

   166     }

   167 }