xref: /plugin/struct/types/Url.php (revision d6d97f6064c3b0f90310be8341edc9585520ee54) 
1<?php
2
3namespace dokuwiki\plugin\struct\types;
4
5use dokuwiki\plugin\struct\meta\ValidationException;
6
7class Url extends Text
8{
9
10    protected $config = array(
11        'autoscheme' => 'https',
12        'prefix' => '',
13        'postfix' => '',
14    );
15
16    /**
17     * The final string should be an URL
18     *
19     * @param string $rawvalue
20     * @return int|string|void
21     */
22    public function validate($rawvalue)
23    {
24        $rawvalue = parent::validate($rawvalue);
25
26        $url = $this->buildURL($rawvalue);
27
28        $schemes = getSchemes();
29        $regex = '^(' . join('|', $schemes) . '):\/\/.+';
30        if (!preg_match("/$regex/i", $url)) {
31            throw new ValidationException('Url invalid', $url);
32        }
33
34        return $rawvalue;
35    }
36
37    /**
38     * @param string $value
39     * @param \Doku_Renderer $R
40     * @param string $mode
41     * @return bool
42     */
43    public function renderValue($value, \Doku_Renderer $R, $mode)
44    {
45        $url = $this->buildURL($value);
46        $R->externallink($url);
47        return true;
48    }
49
50    /**
51     * Creates the full URL and applies the autoscheme if needed
52     *
53     * @param string $value
54     * @return string
55     */
56    protected function buildURL($value)
57    {
58        $url = $this->config['prefix'] . trim($value) . $this->config['postfix'];
59
60        if (!preg_match('/\w+:\/\//', $url)) {
61            $url = $this->config['autoscheme'] . '://' . $url;
62        }
63
64        return $url;
65    }
66}
67