233 lines
10 KiB
PHP
233 lines
10 KiB
PHP
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<?php
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/**
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* CleanURLs class
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*
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* PHP Version 5
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*
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* @category Plugin
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* @package CleanURLs
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* @author Pierre Rudloff <contact@rudloff.pro>
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* @license http://www.gnu.org/licenses/gpl-3.0.html GNU General Public License
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* @link http://rudloff.pro
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* */
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/**
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* Class to remove problematic characters from URLs
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*
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* PHP Version 5
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*
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* @category Plugin
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* @package CleanURLs
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* @author Pierre Rudloff <contact@rudloff.pro>
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* @license http://www.gnu.org/licenses/gpl-3.0.html GNU General Public License
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* @link http://rudloff.pro
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* */
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class CleanURLs
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{
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/**
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* Check if a string is UTF-8
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*
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* @param string $str String to check
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*
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* @return bool
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*
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* @author WordPress
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* @license https://wordpress.org/about/gpl/ GPLv2
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* */
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static function seemsUtf8($str)
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{
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$length = strlen($str);
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for ($i=0; $i < $length; $i++) {
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$c = ord($str[$i]);
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if ($c < 0x80) {
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$n = 0; // 0bbbbbbb
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} elseif (($c & 0xE0) == 0xC0) {
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$n=1; // 110bbbbb
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} elseif (($c & 0xF0) == 0xE0) {
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$n=2; // 1110bbbb
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} else if (($c & 0xF8) == 0xF0) {
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$n=3; // 11110bbb
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} elseif (($c & 0xFC) == 0xF8) {
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$n=4; // 111110bb
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} elseif (($c & 0xFE) == 0xFC) {
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$n=5; // 1111110b
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} else {
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return false; // Does not match any model
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}
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for ($j=0; $j<$n; $j++) { // n bytes matching 10bbbbbb follow ?
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if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80)) {
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return false;
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}
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}
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}
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return true;
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}
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/**
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* Converts all accent characters to ASCII characters.
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*
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* If there are no accent characters, then the string given is just returned.
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*
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* @param string $string Text that might have accent characters
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*
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* @return string Filtered string with replaced "nice" characters.
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*
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* @author WordPress
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* @license https://wordpress.org/about/gpl/ GPLv2
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*/
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static function removeAccents($string)
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{
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if (!preg_match('/[\x80-\xff]/', $string)) {
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return $string;
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}
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if (self::seemsUtf8($string)) {
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$chars = array(
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// Decompositions for Latin-1 Supplement
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chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',
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chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',
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chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',
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chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',
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chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',
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chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',
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chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',
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chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',
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chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',
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chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',
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chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',
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chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',
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chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',
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chr(195).chr(159) => 's', chr(195).chr(160) => 'a',
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chr(195).chr(161) => 'a', chr(195).chr(162) => 'a',
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chr(195).chr(163) => 'a', chr(195).chr(164) => 'a',
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chr(195).chr(165) => 'a', chr(195).chr(167) => 'c',
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chr(195).chr(168) => 'e', chr(195).chr(169) => 'e',
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chr(195).chr(170) => 'e', chr(195).chr(171) => 'e',
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chr(195).chr(172) => 'i', chr(195).chr(173) => 'i',
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chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',
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chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',
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chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',
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chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',
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chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',
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chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',
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chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',
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chr(195).chr(191) => 'y',
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// Decompositions for Latin Extended-A
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chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
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chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
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chr(196).chr(132) => 'A', chr(196).chr(133) => 'a',
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chr(196).chr(134) => 'C', chr(196).chr(135) => 'c',
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chr(196).chr(136) => 'C', chr(196).chr(137) => 'c',
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chr(196).chr(138) => 'C', chr(196).chr(139) => 'c',
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chr(196).chr(140) => 'C', chr(196).chr(141) => 'c',
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chr(196).chr(142) => 'D', chr(196).chr(143) => 'd',
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chr(196).chr(144) => 'D', chr(196).chr(145) => 'd',
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chr(196).chr(146) => 'E', chr(196).chr(147) => 'e',
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chr(196).chr(148) => 'E', chr(196).chr(149) => 'e',
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chr(196).chr(150) => 'E', chr(196).chr(151) => 'e',
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chr(196).chr(152) => 'E', chr(196).chr(153) => 'e',
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chr(196).chr(154) => 'E', chr(196).chr(155) => 'e',
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chr(196).chr(156) => 'G', chr(196).chr(157) => 'g',
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chr(196).chr(158) => 'G', chr(196).chr(159) => 'g',
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chr(196).chr(160) => 'G', chr(196).chr(161) => 'g',
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chr(196).chr(162) => 'G', chr(196).chr(163) => 'g',
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chr(196).chr(164) => 'H', chr(196).chr(165) => 'h',
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chr(196).chr(166) => 'H', chr(196).chr(167) => 'h',
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chr(196).chr(168) => 'I', chr(196).chr(169) => 'i',
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chr(196).chr(170) => 'I', chr(196).chr(171) => 'i',
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chr(196).chr(172) => 'I', chr(196).chr(173) => 'i',
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chr(196).chr(174) => 'I', chr(196).chr(175) => 'i',
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chr(196).chr(176) => 'I', chr(196).chr(177) => 'i',
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chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij',
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chr(196).chr(180) => 'J', chr(196).chr(181) => 'j',
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chr(196).chr(182) => 'K', chr(196).chr(183) => 'k',
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chr(196).chr(184) => 'k', chr(196).chr(185) => 'L',
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chr(196).chr(186) => 'l', chr(196).chr(187) => 'L',
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chr(196).chr(188) => 'l', chr(196).chr(189) => 'L',
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chr(196).chr(190) => 'l', chr(196).chr(191) => 'L',
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chr(197).chr(128) => 'l', chr(197).chr(129) => 'L',
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chr(197).chr(130) => 'l', chr(197).chr(131) => 'N',
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chr(197).chr(132) => 'n', chr(197).chr(133) => 'N',
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chr(197).chr(134) => 'n', chr(197).chr(135) => 'N',
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chr(197).chr(136) => 'n', chr(197).chr(137) => 'N',
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chr(197).chr(138) => 'n', chr(197).chr(139) => 'N',
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chr(197).chr(140) => 'O', chr(197).chr(141) => 'o',
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chr(197).chr(142) => 'O', chr(197).chr(143) => 'o',
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chr(197).chr(144) => 'O', chr(197).chr(145) => 'o',
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chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe',
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chr(197).chr(148) => 'R',chr(197).chr(149) => 'r',
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chr(197).chr(150) => 'R',chr(197).chr(151) => 'r',
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chr(197).chr(152) => 'R',chr(197).chr(153) => 'r',
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chr(197).chr(154) => 'S',chr(197).chr(155) => 's',
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chr(197).chr(156) => 'S',chr(197).chr(157) => 's',
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chr(197).chr(158) => 'S',chr(197).chr(159) => 's',
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chr(197).chr(160) => 'S', chr(197).chr(161) => 's',
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chr(197).chr(162) => 'T', chr(197).chr(163) => 't',
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chr(197).chr(164) => 'T', chr(197).chr(165) => 't',
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chr(197).chr(166) => 'T', chr(197).chr(167) => 't',
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chr(197).chr(168) => 'U', chr(197).chr(169) => 'u',
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chr(197).chr(170) => 'U', chr(197).chr(171) => 'u',
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chr(197).chr(172) => 'U', chr(197).chr(173) => 'u',
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chr(197).chr(174) => 'U', chr(197).chr(175) => 'u',
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chr(197).chr(176) => 'U', chr(197).chr(177) => 'u',
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chr(197).chr(178) => 'U', chr(197).chr(179) => 'u',
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chr(197).chr(180) => 'W', chr(197).chr(181) => 'w',
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chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y',
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chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z',
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chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
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chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
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chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
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// Euro Sign
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chr(226).chr(130).chr(172) => 'E',
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// GBP (Pound) Sign
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chr(194).chr(163) => '');
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$string = strtr($string, $chars);
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} else {
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// Assume ISO-8859-1 if not UTF-8
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$chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158)
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.chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194)
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.chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202)
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.chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210)
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.chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218)
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.chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227)
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.chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235)
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.chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243)
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.chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251)
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.chr(252).chr(253).chr(255);
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$chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUY".
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"aaaaaaceeeeiiiinoooooouuuuyy";
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$string = strtr($string, $chars['in'], $chars['out']);
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$double_chars['in'] = array(
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chr(140), chr(156), chr(198), chr(208), chr(222),
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chr(223), chr(230), chr(240), chr(254)
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);
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$double_chars['out'] = array(
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'OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'
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);
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$string = str_replace(
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$double_chars['in'], $double_chars['out'], $string
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);
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}
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return $string;
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}
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/**
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* Clean URLs from diacritics and punctuation
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*
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* @param object $blog Current blog
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* @param object $cur Cursor
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*
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* @return void
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* */
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public static function clean($blog, $cur)
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{
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$cur->post_url = self::removeAccents($cur->post_url);
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$cur->post_url = strtr($cur->post_url, ",!.?;", "-----");
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}
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}
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?>
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