1: <?php
 2: /**
 3:  * Repair common mistakes in links
 4:  *
 5:  * @package Plugin
 6:  * @subpackage Linkchecker
 7:  * @author Frederic Schneider
 8:  * @copyright four for business AG <www.4fb.de>
 9:  * @license http://www.contenido.org/license/LIZENZ.txt
10:  * @link http://www.4fb.de
11:  * @link http://www.contenido.org
12:  */
13: 
14: defined('CON_FRAMEWORK') || die('Illegal call: Missing framework initialization - request aborted.');
15: 
16: /**
17:  * Repair common mistakes in links
18:  *
19:  * @author frederic.schneider
20:  *
21:  */
22: class LinkcheckerRepair {
23: 
24:     /**
25:      * Typical link misstakes
26:      *
27:      * @var array
28:      */
29:     private $errorTypes = array(
30:         'htp://',
31:         'htttp://',
32:         'htps://',
33:         'htttps://',
34:         'ww',
35:         'www',
36:         'wwww'
37:     );
38: 
39:     /**
40:      * Fixed link misstakes
41:      * Keys are equivalent to $errorTypes
42:      *
43:      * @var array
44:      */
45:     private $correctTypes = array(
46:         'http://',
47:         'http://',
48:         'https://',
49:         'https://',
50:         'http://www',
51:         'http://www',
52:         'http://www'
53:     );
54: 
55:     /**
56:      * Checks link and generate a repaired version
57:      *
58:      * @return string|bool
59:      */
60:     public function checkLink($link) {
61: 
62:         foreach ($this->errorTypes as $errorTypeKey => $errorType) {
63:             if (substr($link, 0, strlen($errorType)) == $errorType) {
64:                 $repaired_link = str_replace($errorType, $this->correctTypes[$errorTypeKey], $link);
65:                 if ($this->pingRepairedLink($repaired_link) == true) {
66:                     return $repaired_link;
67:                 } else {
68:                     return false;
69:                 }
70:             }
71:         }
72: 
73:     }
74: 
75:     /**
76:      * Test repaired link
77:      *
78:      * @param string $repaired_link
79:      * @return  bool  true or false
80:      */
81:     private function pingRepairedLink($repaired_link) {
82:         return @fopen($repaired_link, 'r');
83:     }
84: 
85: }
86: ?>