77 lines
1.8 KiB
PHP
77 lines
1.8 KiB
PHP
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<?php
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class AutofixUrl {
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function AutofixUrl() {
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}
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function apply($url) {
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$parts = @parse_url($url);
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if ($parts === FALSE) {
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return null;
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};
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/*
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* Check if path contains only RFC1738 compliant symbols and fix it
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* No graphic: 00-1F, 7F, 80-FF
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* Unsafe: 'space',<>"#%{}|\^~[]`
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* Reserved: ;/?:@=&
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*
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* Normally, slash is allowed in path part, and % may be a part of encoded character
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*/
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$no_graphic_found = preg_match('/[\x00-\x1F\x7F\x80-\xFF]/', $parts['path']);
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$unsafe_found = preg_match('/[ <>\"#{}\|\^~\[\]`]/', $parts['path']);
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$unsafe_percent_found = preg_match('/%[^\dA-F]|%\d[^\dA-F]/i', $parts['path']);
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$reserved_found = preg_match('/;\?:@=&/', $parts['path']);
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if ($no_graphic_found ||
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$unsafe_found ||
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$unsafe_percent_found ||
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$reserved_found) {
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$parts['path'] = join('/', array_map('rawurlencode', explode('/',$parts['path'])));
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};
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// Build updated URL
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$url_fixed = '';
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if (isset($parts['scheme'])) {
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$url_fixed .= $parts['scheme'];
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$url_fixed .= '://';
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if (isset($parts['user'])) {
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$url_fixed .= $parts['user'];
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if (isset($parts['pass'])) {
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$url_fixed .= ':';
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$url_fixed .= $parts['pass'];
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};
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$url_fixed .= '@';
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};
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if (isset($parts['host'])) {
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$url_fixed .= $parts['host'];
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};
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if (isset($parts['port'])) {
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$url_fixed .= ':';
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$url_fixed .= $parts['port'];
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};
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};
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if (isset($parts['path'])) {
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$url_fixed .= $parts['path'];
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};
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if (isset($parts['query'])) {
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$url_fixed .= '?';
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$url_fixed .= $parts['query'];
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};
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if (isset($parts['fragment'])) {
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$url_fixed .= '#';
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$url_fixed .= $parts['fragment'];
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};
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return $url_fixed;
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}
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}
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?>
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