104 lines
3.4 KiB
PHP
104 lines
3.4 KiB
PHP
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<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Superclass for plugins that do URL shortening
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Plugin
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
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}
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/**
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* Superclass for plugins that do URL shortening
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*
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* @category Plugin
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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abstract class UrlShortenerPlugin extends Plugin
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{
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public $shortenerName;
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public $freeService=false;
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//------------Url Shortener plugin should implement some (or all) of these methods------------\\
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/**
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* Short a URL
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* @param url
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* @return string shortened version of the url, or null if URL shortening failed
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*/
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protected abstract function shorten($url);
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//------------These methods may help you implement your plugin------------\\
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protected function http_get($url)
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{
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$request = HTTPClient::start();
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$response = $request->get($url);
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return $response->getBody();
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}
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protected function http_post($url,$data)
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{
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$request = HTTPClient::start();
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$response = $request->post($url, null, $data);
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return $response->getBody();
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}
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protected function tidy($response) {
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$response = str_replace(' ', ' ', $response);
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$config = array('output-xhtml' => true);
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$tidy = new tidy;
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$tidy->parseString($response, $config, 'utf8');
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$tidy->cleanRepair();
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return (string)$tidy;
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}
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//------------Below are the methods that connect StatusNet to the implementing Url Shortener plugin------------\\
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function onInitializePlugin(){
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if(!isset($this->shortenerName)){
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throw new Exception("must specify a shortenerName");
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}
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}
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function onGetUrlShorteners(&$shorteners)
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{
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$shorteners[$this->shortenerName]=array('freeService'=>$this->freeService);
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}
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function onStartShortenUrl($url,$shortenerName,&$shortenedUrl)
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{
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if($shortenerName == $this->shortenerName && strlen($url) >= common_config('site', 'shorturllength')){
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$result = $this->shorten($url);
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if(isset($result) && $result != null && $result !== false){
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$shortenedUrl=$result;
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common_log(LOG_INFO, __CLASS__ . ": $this->shortenerName shortened $url to $shortenedUrl");
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return false;
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}
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}
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}
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}
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