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<?php
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namespace SGalinski\Scriptmerger;
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/***************************************************************
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* Copyright notice
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*
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* (c) Stefan Galinski <stefan@sgalinski.de>
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* All rights reserved
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*
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* This script is part of the TYPO3 project. The TYPO3 project is
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* free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The GNU General Public License can be found at
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* http://www.gnu.org/copyleft/gpl.html.
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*
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* This script is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* This copyright notice MUST APPEAR in all copies of the script!
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***************************************************************/
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
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/**
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* This class contains the output hooks that trigger the scriptmerger process
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*/
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class user_ScriptmergerOutputHook {
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/**
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* holds the extension configuration
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*
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* @var array
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*/
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protected $extensionConfiguration = array();
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/**
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* This method fetches and prepares the extension configuration.
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*
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* @return void
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*/
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protected function prepareExtensionConfiguration() {
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$this->extensionConfiguration = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['scriptmerger']);
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$tsSetup = $GLOBALS['TSFE']->tmpl->setup['plugin.']['tx_scriptmerger.'];
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if (is_array($tsSetup)) {
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foreach ($tsSetup as $key => $value) {
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$this->extensionConfiguration[$key] = $value;
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}
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}
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// no compression allowed if content should be added inside the document
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if ($this->extensionConfiguration['css.']['addContentInDocument'] === '1') {
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$this->extensionConfiguration['css.']['compress.']['enable'] = '0';
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}
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if ($this->extensionConfiguration['javascript.']['addContentInDocument'] === '1') {
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$this->extensionConfiguration['javascript.']['compress.']['enable'] = '0';
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}
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// prepare ignore expressions
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if ($this->extensionConfiguration['css.']['minify.']['ignore'] !== '') {
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$this->extensionConfiguration['css.']['minify.']['ignore'] = '/.*(' .
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str_replace(',', '|', $this->extensionConfiguration['css.']['minify.']['ignore']) .
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').*/isU';
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}
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if ($this->extensionConfiguration['css.']['compress.']['ignore'] !== '') {
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$this->extensionConfiguration['css.']['compress.']['ignore'] = '/.*(' .
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str_replace(',', '|', $this->extensionConfiguration['css.']['compress.']['ignore']) .
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').*/isU';
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}
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if ($this->extensionConfiguration['css.']['merge.']['ignore'] !== '') {
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$this->extensionConfiguration['css.']['merge.']['ignore'] = '/.*(' .
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str_replace(',', '|', $this->extensionConfiguration['css.']['merge.']['ignore']) .
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').*/isU';
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}
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if ($this->extensionConfiguration['javascript.']['minify.']['ignore'] !== '') {
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$this->extensionConfiguration['javascript.']['minify.']['ignore'] = '/.*(' .
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str_replace(',', '|', $this->extensionConfiguration['javascript.']['minify.']['ignore']) .
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').*/isU';
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}
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if ($this->extensionConfiguration['javascript.']['compress.']['ignore'] !== '') {
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$this->extensionConfiguration['javascript.']['compress.']['ignore'] = '/.*(' .
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str_replace(',', '|', $this->extensionConfiguration['javascript.']['compress.']['ignore']) .
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').*/isU';
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}
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if ($this->extensionConfiguration['javascript.']['merge.']['ignore'] !== '') {
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$this->extensionConfiguration['javascript.']['merge.']['ignore'] = '/.*(' .
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str_replace(',', '|', $this->extensionConfiguration['javascript.']['merge.']['ignore']) .
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').*/isU';
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}
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}
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/**
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* This hook is executed if the page contains *_INT objects! It's called always as the
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* last hook before the final output. This isn't the case if you are using a
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* static file cache like nc_staticfilecache.
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*
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* @return bool
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*/
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public function contentPostProcOutput() {
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/** @var $tsfe TypoScriptFrontendController */
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$tsfe = $GLOBALS['TSFE'];
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if (!$tsfe->isINTincScript() || intval(GeneralUtility::_GP('disableScriptmerger')) === 1) {
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return TRUE;
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}
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$this->prepareExtensionConfiguration();
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$this->process();
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return TRUE;
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}
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/**
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* The hook is only executed if the page does not contains any *_INT objects. It's called
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* always if the page was not already cached or on first hit!
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*
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* @return bool
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*/
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public function contentPostProcAll() {
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/** @var $tsfe TypoScriptFrontendController */
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$tsfe = $GLOBALS['TSFE'];
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if ($tsfe->isINTincScript() || intval(GeneralUtility::_GP('disableScriptmerger')) === 1) {
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return TRUE;
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}
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$this->prepareExtensionConfiguration();
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$this->process();
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return TRUE;
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}
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/**
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* Contains the process logic of the whole plugin!
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*
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* @return void
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*/
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protected function process() {
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$javascriptEnabled = $this->extensionConfiguration['javascript.']['enable'] === '1';
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$cssEnabled = $this->extensionConfiguration['css.']['enable'] === '1';
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if ($cssEnabled || $javascriptEnabled) {
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/** @var ScriptmergerConditionalCommentPreserver $conditionalCommentPreserver */
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$conditionalCommentPreserver = GeneralUtility::makeInstance(
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'SGalinski\Scriptmerger\ScriptmergerConditionalCommentPreserver'
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);
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$conditionalCommentPreserver->read();
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if ($cssEnabled) {
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/** @var ScriptmergerCss $cssProcessor */
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$cssProcessor = GeneralUtility::makeInstance('SGalinski\Scriptmerger\ScriptmergerCss');
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$cssProcessor->injectExtensionConfiguration($this->extensionConfiguration);
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$cssProcessor->process();
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}
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if ($javascriptEnabled) {
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/** @var ScriptmergerJavascript $javascriptProcessor */
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$javascriptProcessor = GeneralUtility::makeInstance('SGalinski\Scriptmerger\ScriptmergerJavascript');
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$javascriptProcessor->injectExtensionConfiguration($this->extensionConfiguration);
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$javascriptProcessor->process();
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}
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$conditionalCommentPreserver->writeBack();
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}
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if (is_array($this->extensionConfiguration['urlRegularExpressions.']) &&
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count($this->extensionConfiguration['urlRegularExpressions.'])
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) {
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$this->executeUserDefinedRegularExpressionsOnContent(
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$this->extensionConfiguration['urlRegularExpressions.']
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);
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}
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}
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/**
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* Executes user defined regular expressions on the href/src urls for e.g. use an cookie-less asset domain.
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*
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* @param array $expressions
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* @return void
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*/
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protected function executeUserDefinedRegularExpressionsOnContent($expressions) {
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foreach ($expressions as $index => $expression) {
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if (strpos($index, '.') !== FALSE || !isset($expressions[$index . '.']['replacement'])) {
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continue;
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}
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$replacement = trim($expressions[$index . '.']['replacement']);
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if ($replacement === '') {
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continue;
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}
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if ($expressions[$index . '.']['useWholeContent'] === '1') {
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$GLOBALS['TSFE']->content = preg_replace($expression, $replacement, $GLOBALS['TSFE']->content);
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} else {
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$userExpression = trim(str_replace('/', '\/', $expression));
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$expression = '/<(?:img|link|style|script|meta|input)' .
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'(?=[^>]+?(?:content|href|src)="(' . $userExpression . ')")[^>]*?>/iU';
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preg_match_all($expression, $GLOBALS['TSFE']->content, $matches);
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if (is_array($matches[1])) {
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foreach ($matches[1] as $match) {
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if (trim($match) === '') {
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continue;
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}
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$changedUrl = preg_replace('/' . $userExpression . '/is', $replacement, $match);
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$GLOBALS['TSFE']->content = str_replace($match, $changedUrl, $GLOBALS['TSFE']->content);
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}
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}
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}
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}
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}
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}
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?>
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