131 lines
3.7 KiB
PHP
131 lines
3.7 KiB
PHP
<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, Controlez-Vous, Inc.
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*
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* 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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if (!defined('LACONICA')) { exit(1); }
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class ShortUrlApi
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{
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protected $service_url;
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function __construct($service_url)
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{
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$this->service_url = $service_url;
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}
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function shorten($url)
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{
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if ($this->is_long($url)) return $this->shorten_imp($url);
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return $url;
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}
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protected function shorten_imp($url) {
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return "To Override";
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}
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private function is_long($url) {
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return strlen($url) >= 30;
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}
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protected function http_post($data) {
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $this->service_url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($ch, CURLOPT_POST, 1);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
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$response = curl_exec($ch);
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$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if (($code < 200) || ($code >= 400)) return false;
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return $response;
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}
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protected function http_get($url) {
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$encoded_url = urlencode($url);
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return file_get_contents("{$this->service_url}$encoded_url");
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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)$tidy;
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}
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}
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class LilUrl extends ShortUrlApi
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{
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function __construct()
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{
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parent::__construct('http://ur1.ca/');
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}
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protected function shorten_imp($url) {
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$data['longurl'] = $url;
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$response = $this->http_post($data);
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if (!$response) return $url;
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$y = @simplexml_load_string($response);
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if (!isset($y->body)) return $url;
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$x = $y->body->p[0]->a->attributes();
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if (isset($x['href'])) return $x['href'];
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return $url;
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}
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}
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class PtitUrl extends ShortUrlApi
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{
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function __construct()
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{
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parent::__construct('http://ptiturl.com/?creer=oui&action=Reduire&url=');
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}
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protected function shorten_imp($url) {
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$response = $this->http_get($url);
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if (!$response) return $url;
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$response = $this->tidy($response);
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$y = @simplexml_load_string($response);
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if (!isset($y->body)) return $url;
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$xml = $y->body->center->table->tr->td->pre->a->attributes();
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if (isset($xml['href'])) return $xml['href'];
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return $url;
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}
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}
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class TightUrl extends ShortUrlApi
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{
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function __construct()
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{
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parent::__construct('http://2tu.us/?save=y&url=');
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}
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protected function shorten_imp($url) {
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$response = $this->http_get($url);
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if (!$response) return $url;
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$response = $this->tidy($response);
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$y = @simplexml_load_string($response);
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if (!isset($y->body)) return $url;
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$xml = $y->body->p[0]->code[0]->a->attributes();
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if (isset($xml['href'])) return $xml['href'];
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return $url;
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}
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}
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