summaryrefslogtreecommitdiff
path: root/lib/Shorturl_api.php
blob: fe106cb8376a06b69ac5ba142329917b808a4427 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
<?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) >= 30;
    }

    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;
        $y = @simplexml_load_string($response);
        if (!isset($y->body)) return $url;
        $x = $y->body->p[0]->a->attributes();
        if (isset($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);
        $y = @simplexml_load_string($response);
        if (!isset($y->body)) return $url;
        $xml = $y->body->center->table->tr->td->pre->a->attributes();
        if (isset($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);
        $y = @simplexml_load_string($response);
        if (!isset($y->body)) return $url;
        $xml = $y->body->p[0]->code[0]->a->attributes();
        if (isset($xml['href'])) return $xml['href'];
        return $url;
    }
}