106 lines
3.3 KiB
PHP
106 lines
3.3 KiB
PHP
<?php
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/**
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* Phergie
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*
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* PHP version 5
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.
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* It is also available through the world-wide-web at this URL:
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* http://phergie.org/license
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*
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* @category Phergie
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* @package Phergie_Plugin_Php
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* @author Phergie Development Team <team@phergie.org>
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* @copyright 2008-2010 Phergie Development Team (http://phergie.org)
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* @license http://phergie.org/license New BSD License
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* @link http://pear.phergie.org/package/Phergie_Plugin_Php
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*/
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/**
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* URL shortener abstract class
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*
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* @category Phergie
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* @package Phergie_Plugin_Url
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* @author Phergie Development Team <team@phergie.org>
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* @license http://phergie.org/license New BSD License
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* @link http://pear.phergie.org/package/Phergie_Plugin_Url
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* @uses Phergie_Plugin_Http pear.phergie.org
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*/
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abstract class Phergie_Plugin_Url_Shorten_Abstract
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{
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protected $http;
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/**
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* Constructor
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*
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* @param Phergie_Plugin_Http $http instance of the http plugin
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*/
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public function __construct(Phergie_Plugin_Http $http)
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{
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$this->http = $http;
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}
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/**
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* Returns an array of request parameters given a url to shorten. The
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* following keys are valid request parameters:
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*
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* * 'uri': the URI for the request (required)
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* * 'query': an array of key-value pairs sent in a GET request
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* * 'post': an array of key-value pairs sent in a POST request
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* * 'callback': to be called after the request is finished. Should accept
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* a Phergie_Plugin_Http_Response object and return either the shortened
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* url or false if an error has occured.
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*
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* If the 'post' key is present a POST request shall be made; otherwise
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* a GET request will be made. The 'post' key can be an empty array and
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* a post request will still be made.
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*
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* If no callback is provided the contents of the response will be returned.
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*
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* @param string $url the url to shorten
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*
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* @return array the request parameters
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*/
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protected abstract function getRequestParams($url);
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/**
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* Shortens a given url.
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*
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* @param string $url the url to shorten
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*
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* @return string the shortened url or false on a failure
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*/
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public function shorten($url)
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{
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$defaults = array('get' => array(), 'post' => array(), 'callback' => null);
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$options = array('timeout' => 2);
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$params = $this->getRequestParams($url) + $defaults;
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// Should some kind of notice be thrown? Maybe just if getRequestParams does not return an array?
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if (!is_array($params) || empty($params['uri'])) {
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return $url;
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}
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if (!empty($params['post'])) {
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$response = $this->http->post($params['uri'], $params['get'], $params['post'], $options);
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} else {
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$response = $this->http->get($params['uri'], $params['get'], $options);
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}
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if (is_callable($params['callback'])) {
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return call_user_func($params['callback'], $response);
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}
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$code = $response->getCode();
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$content = trim($response->getContent);
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if ($code < 200 || $code >= 300 || empty($content)) {
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return false;
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}
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return $response->getContent();
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}
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}
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