<?php
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/*
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Copyright (c) 2008, Till Brehm, projektfarm Gmbh
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of ISPConfig nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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require_once '../../lib/config.inc.php';
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require_once '../../lib/app.inc.php';
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function normalize_string($string, $quote, $allow_special = false) {
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$escaped = false;
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$in_string = true;
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$new_string = '';
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for($c = 0; $c < mb_strlen($string); $c++) {
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$char = $string{$c};
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if($in_string === true && $escaped === false && $char === $quote) {
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// this marks a string end (e.g. for concatenation)
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$in_string = false;
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continue;
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} elseif($in_string === false) {
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if($escaped === false && $char === $quote) {
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$in_string = true;
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continue;
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} else {
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continue; // we strip everything from outside the string!
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}
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}
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if($char === '"' && $escaped === true && $quote === '"') {
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// unescape this
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$new_string .= $char;
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$escaped = false;
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continue;
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} elseif($char === "'" && $escaped === false && $quote === '"') {
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// escape this
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$new_string .= '\\' . $char;
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continue;
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}
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if($escaped === true) {
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// the next character is the escaped one.
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if($allow_special === true && ($char === 'n' || $char === 'r' || $char === 't')) {
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$new_string .= '\' . "\\' . $char . '" . \'';
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} else {
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$new_string .= '\\' . $char;
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}
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$escaped = false;
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} else {
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if($char === '\\') {
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$escaped = true;
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} else {
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$new_string .= $char;
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}
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}
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}
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return $new_string;
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}
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function validate_line($line) {
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$line = trim($line);
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if($line === '' || $line === '<?php' || $line === '?>') return $line; // don't treat empty lines as malicious
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$ok = preg_match('/^\s*\$wb\[(["\'])(.*?)\\1\]\s*=\s*(["\'])(.*?)\\3\s*;\s*$/', $line, $matches);
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if(!$ok) return false; // this line has invalid form and could lead to malfunction
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$keyquote = $matches[1]; // ' or "
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$key = $matches[2];
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if(strpos($key, '"') !== false || strpos($key, "'") !== false) return false;
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$textquote = $matches[3]; // ' or "
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$text = $matches[4];
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$new_line = '$wb[\'';
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// validate the language key
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$key = normalize_string($key, $keyquote);
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$new_line .= $key . '\'] = \'';
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// validate this text to avoid code injection
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$text = normalize_string($text, $textquote, true);
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$new_line .= $text . '\';';
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return $new_line;
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}
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//* Check permissions for module
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$app->auth->check_module_permissions('admin');
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//* This is only allowed for administrators
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if(!$app->auth->is_admin()) die('only allowed for administrators.');
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if($conf['demo_mode'] == true) $app->error('This function is disabled in demo mode.');
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if(!$conf['language_file_import_enabled']) $app->error('Languge import function is disabled in the interface config.inc.php file.');
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$app->uses('tpl');
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$app->tpl->newTemplate('form.tpl.htm');
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$app->tpl->setInclude('content_tpl', 'templates/language_import.htm');
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$msg = '';
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$error = '';
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// Export the language file
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if(isset($_FILES['file']['name']) && is_uploaded_file($_FILES['file']['tmp_name'])) {
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$lines = file($_FILES['file']['tmp_name']);
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// initial check
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$parts = explode('|', $lines[0]);
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if($parts[0] == '---' && $parts[1] == 'ISPConfig Language File') {
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if($_POST['ignore_version'] != 1 && $parts[2] != $conf["app_version"]) {
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$error .= 'Application version does not match. Appversion: '.$conf["app_version"].' Lanfile version: '.$parts[2];
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} else {
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unset($lines[0]);
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$buffer = '';
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$langfile_path = '';
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// all other lines
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$ln = 1;
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foreach($lines as $line) {
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$ln++;
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$parts = explode('|', $line);
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if(is_array($parts) && count($parts) > 0 && $parts[0] == '--') {
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// Write language file, if its not the first file
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if($buffer != '' && $langfile_path != '') {
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if(@$_REQUEST['overwrite'] != 1 && @is_file($langfile_path)) {
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$error .= "File exists, not written: $langfile_path<br />";
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} else {
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$msg .= "File written: $langfile_path<br />";
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file_put_contents($langfile_path, $buffer);
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}
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}
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// empty buffer and set variables
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$buffer = '';
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$module_name = trim($parts[1]);
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$selected_language = trim($parts[2]);
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$file_name = trim($parts[3]);
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if(!preg_match("/^[a-z]{2}$/i", $selected_language)) die("unallowed characters in selected language name: $selected_language");
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if(!preg_match("/^[a-z_]+$/i", $module_name)) die('unallowed characters in module name.');
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if(!preg_match("/^[a-z\._\-]+$/i", $file_name) || stristr($file_name, '..')) die("unallowed characters in language file name: '$file_name'");
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if($module_name == 'global') {
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$langfile_path = trim(ISPC_LIB_PATH."/lang/".$selected_language.".lng");
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} else {
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$langfile_path = trim(ISPC_WEB_PATH.'/'.$module_name.'/lib/lang/'.$file_name);
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}
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} elseif(is_array($parts) && count($parts) > 1 && $parts[0] == '---' && $parts[1] == 'EOF') {
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// EOF line, ignore it.
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} else {
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$line = validate_line($line);
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if($line === false) $error .= "Language file contains invalid language entry on line $ln.<br />";
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else $buffer .= $line."\n";
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}
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}
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}
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}
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}
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$app->tpl->setVar('msg', $msg);
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$app->tpl->setVar('error', $error);
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//* load language file
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$lng_file = 'lib/lang/'.$_SESSION['s']['language'].'_language_import.lng';
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include $lng_file;
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$app->tpl->setVar($wb);
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$app->tpl_defaults();
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$app->tpl->pparse();
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?>
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