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<?php
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/**
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* Convert full qualified, local URLs into relative URLs
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* @copyright Manuela v.d.Decken <manuela@isteam.de>
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* @author Manuela v.d.Decken <manuela@isteam.de>
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* @param string $sContent
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* @return string
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*/
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function doFilterRelUrl($sContent) {
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$aFilterSettings = getOutputFilterSettings();
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$key = preg_replace('=^.*?filter([^\.\/\\\\]+)(\.[^\.]+)?$=is', '\1', __FILE__);
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if ($aFilterSettings[$key]) {
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$sAppUrl = rtrim(str_replace('\\', '/', WB_URL), '/').'/';
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$sAppPath = rtrim(str_replace('\\', '/', WB_PATH), '/').'/';
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$sAppRel = preg_replace('/^https?:\/\/[^\/]*(.*)$/is', '$1', $sAppUrl);
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$sDocRoot = preg_replace('/^(.*?)'.preg_quote($sAppRel, '/').'$/', '$1', $sAppUrl);
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$sContent = preg_replace_callback(
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'/((?:href|src|action)\s*=\s*")([^\?\"]+?)/isU',
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function ($aMatches) use ($sAppUrl, $sAppPath, $sAppRel) {
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$aMatches[2] = str_replace('\\', '/', $aMatches[2]);
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if ($aMatches[2][0] ='/') { $aMatches[2] = rtrim($sAppUrl, '/').$aMatches[2]; }
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$aMatches[2] = preg_replace('/^'.preg_quote($sAppUrl, '/').'/is', '', $aMatches[2]);
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$aMatches[2] = preg_replace('/(\.+\/)|(\/+)/', '/', $aMatches[2]);
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if (!is_readable($sAppPath.$aMatches[2])) {
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// in case of death link show original link
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return $aMatches[0];
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} else {
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return $aMatches[1].$sAppRel.$aMatches[2];
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}
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},
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$sContent
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);
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/* Original SP7 Manu Fix */
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// restore canonical relation links
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$sContent = preg_replace_callback(
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'/<link\s[^>]*?\"(canonical|alternate)\"[^>]*?>/isU',
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function($aMatches) use ($sDocRoot) {
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return preg_replace(
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'/(href\s*=\s*\")([^\"]*?)/siU',
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'\1'.rtrim($sDocRoot, '/').'\2',
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$aMatches[0]
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);
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},
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$sContent
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);
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}
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return $sContent;
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}
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