Simukti\Service\ShortUrl\Googl

Googl.php

<?php
/**
 * Description of Googl
 *
 * @author Sarjono Mukti Aji <me@simukti.net>
 */
namespace Simukti\Service\ShortUrl;

class Googl extends \Zend_Service_ShortUrl_AbstractShortener
{
    /**
     * Url shortener endpoint
     * 
     * @var string
     */
    protected $_urlApi  = 'https://www.googleapis.com/urlshortener/v1/url';
    
    /**
     * Base uri for short url validation
     * 
     * @var string
     */
    protected $_baseUri = 'http://goo.gl';
    
    /**
     * Google apiKey for url short request
     * 
     * @var string
     * @link https://developers.google.com/url-shortener/v1/getting_started#APIKey
     */
    static protected $apiKey;
    
    /**
     * @param   string $apiKey
     */
    public function __construct($apiKey)
    {
        if(null === self::$apiKey) {
            self::setApiKey($apiKey);
        }
    }
    
    /**
     * @param   string $apiKey 
     */
    static public function setApiKey($apiKey)
    {
        if(null === self::$apiKey) {
            self::$apiKey = $apiKey;
        }
    }
    
    /**
     * @return  string
     * @throws  \Zend_Service_ShortUrl_Exception 
     */
    static public function getApiKey()
    {
        if(null === self::$apiKey) {
            throw new \Zend_Service_ShortUrl_Exception('Google API key was not provided.');
        }
        return self::$apiKey;
    }
    
    /**
     * @param   string $url
     * @return  \Zend_Json JSON result
     */
    public function shorten($url)
    {
        $this->_validateUri($url);
        
        $client = self::getHttpClient();
        $client->resetParameters(true)
               ->setUri(sprintf("%s?key=%s", $this->_urlApi, self::getApiKey()))
               ->setHeaders('Content-Type: application/json')
               ->setRawData(\Zend_Json::encode(array('longUrl' => $url)))
               ->setMethod(\Zend_Http_Client::POST);
        $response = $client->request();
        if($response->isSuccessful()) {
            $result = \Zend_Json::decode($response->getBody());
            return $result['id'];
        } else {
            return false;
        }
    }
    
    /**
     * @param   string $url
     * @return  array JSON result
     */
    public function unshorten($url)
    {
        $this->_validateUri($url);
        $this->_verifyBaseUri($url);
        
        $client = self::getHttpClient();
        $client->resetParameters(true)
               ->setUri($this->_urlApi)
               ->setParameterGet(array(
                   'shortUrl' => $url,
                   'key' => self::getApiKey()
               ))
               ->setMethod(\Zend_Http_Client::GET);
        $response = $client->request();
        return $response->getBody();
    }
}