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-rw-r--r--lib/Shorturl_api.php116
1 files changed, 116 insertions, 0 deletions
diff --git a/lib/Shorturl_api.php b/lib/Shorturl_api.php
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+++ b/lib/Shorturl_api.php
@@ -0,0 +1,116 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+if (!defined('LACONICA')) { exit(1); }
+
+class ShortUrlApi {
+ protected $service_url;
+
+ function __construct($service_url) {
+ $this->service_url = $service_url;
+ }
+
+ function shorten($url) {
+ if ($this->is_long($url)) return $this->shorten_imp($url);
+ return $url;
+ }
+
+ protected function shorten_imp($url) {
+ return "To Override";
+ }
+
+ private function is_long($url) {
+ return strlen($url) > 20;
+ }
+
+ protected function http_post($data) {
+ $ch = curl_init();
+ curl_setopt($ch, CURLOPT_URL, $this->service_url);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+ curl_setopt($ch, CURLOPT_POST, 1);
+ curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
+ $response = curl_exec($ch);
+ $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+ curl_close($ch);
+ if (($code < 200) || ($code >= 400)) return false;
+ return $response;
+ }
+
+ protected function http_get($url) {
+ $encoded_url = urlencode($url);
+ return file_get_contents("{$this->service_url}$encoded_url");
+ }
+
+ protected function tidy($response) {
+ $response = str_replace('&nbsp;', ' ', $response);
+ $config = array('output-xhtml' => true);
+ $tidy = new tidy;
+ $tidy->parseString($response, $config, 'utf8');
+ $tidy->cleanRepair();
+ return (string)$tidy;
+ }
+}
+
+class LilUrl extends ShortUrlApi {
+ function __construct() {
+ parent::__construct('http://ur1.ca/');
+ }
+
+ protected function shorten_imp($url) {
+ $data['longurl'] = $url;
+ $response = $this->http_post($data);
+ if (!$response) return $url;
+ $x = simplexml_load_string($response)->body->p[0]->a->attributes();
+ if (isset($x['href'])) return $x['href'];
+ return $url;
+ }
+}
+
+
+class PtitUrl extends ShortUrlApi {
+ function __construct() {
+ parent::__construct('http://ptiturl.com/?creer=oui&action=Reduire&url=');
+ }
+
+ protected function shorten_imp($url) {
+ $response = $this->http_get($url);
+ if (!$response) return $url;
+ $response = $this->tidy($response);
+ $xml = simplexml_load_string($response)->body->center->table->tr->td->pre->a->attributes();
+ if (isset($xml['href'])) return $xml['href'];
+ return $url;
+ }
+}
+
+class TightUrl extends ShortUrlApi {
+ function __construct() {
+ parent::__construct('http://2tu.us/?save=y&url=');
+ }
+
+ protected function shorten_imp($url) {
+ $response = $this->http_get($url);
+ if (!$response) return $url;
+ $response = $this->tidy($response);
+ $xml = simplexml_load_string($response)->body->p[0]->code[0]->a->attributes();
+ if (isset($xml['href'])) return $xml['href'];
+ return $url;
+ }
+}
+
+