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<?php
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/* $Id$ */
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/*
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xmlparse.inc
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functions to parse/dump configuration files in XML format
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. 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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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/* The following items will be treated as arrays in config.xml */
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function listtags() {
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$ret = explode(" ", "element alias aliasurl allowedip cacert config columnitem disk dnsserver domainoverrides " .
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"earlyshellcmd encryption-algorithm-option field fieldname hash-algorithm-option " .
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"hosts group interface_array item key lbpool menu mobilekey mount onetoone option package passthrumac priv proxyarpnet " .
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"queue pages pipe route row rule schedule service servernat servers earlyshellcmd shellcmd staticmap subqueue " .
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"timerange tunnel user vip virtual_server vlan winsserver ntpserver wolentry widget depends_on_package");
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return $ret;
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}
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/* Package XML tags that should be treat as a list not as a traditional array */
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function listtags_pkg() {
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$ret = array("depends_on_package", "onetoone", "queue", "rule", "servernat", "alias", "additional_files_needed", "tab", "template", "menu", "rowhelperfield", "service", "step", "package", "columnitem", "option", "item", "field", "package", "file");
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return $ret;
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}
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function startElement($parser, $name, $attrs) {
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global $parsedcfg, $depth, $curpath, $havedata, $listtags;
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array_push($curpath, strtolower($name));
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$ptr =& $parsedcfg;
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foreach ($curpath as $path) {
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$ptr =& $ptr[$path];
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}
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/* is it an element that belongs to a list? */
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if (in_array(strtolower($name), $listtags)) {
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/* is there an array already? */
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if (!is_array($ptr)) {
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/* make an array */
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$ptr = array();
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}
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array_push($curpath, count($ptr));
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} else if (isset($ptr)) {
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/* multiple entries not allowed for this element, bail out */
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die(sprintf("XML error: %s at line %d cannot occur more than once\n",
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$name,
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xml_get_current_line_number($parser)));
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}
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$depth++;
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$havedata = $depth;
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}
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function endElement($parser, $name) {
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global $depth, $curpath, $parsedcfg, $havedata, $listtags;
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if ($havedata == $depth) {
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$ptr =& $parsedcfg;
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foreach ($curpath as $path) {
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$ptr =& $ptr[$path];
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}
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$ptr = "";
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}
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array_pop($curpath);
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if (in_array(strtolower($name), $listtags))
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array_pop($curpath);
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$depth--;
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}
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function cData($parser, $data) {
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global $depth, $curpath, $parsedcfg, $havedata;
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$data = trim($data, "\t\n\r");
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if ($data != "") {
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$ptr =& $parsedcfg;
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foreach ($curpath as $path) {
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$ptr =& $ptr[$path];
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}
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if (is_string($ptr)) {
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$ptr .= $data;
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} else {
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if (trim($data, " ") != "") {
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$ptr = $data;
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$havedata++;
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}
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}
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}
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}
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function parse_xml_config($cffile, $rootobj, $isstring = "false") {
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global $listtags;
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$listtags = listtags();
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if (isset($GLOBALS['custom_listtags'])) {
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foreach($GLOBALS['custom_listtags'] as $tag) {
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$listtags[] = $tag;
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}
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}
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return parse_xml_config_raw($cffile, $rootobj, $isstring);
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}
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function parse_xml_config_pkg($cffile, $rootobj, $isstring = "false") {
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global $listtags;
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$listtags = listtags_pkg();
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if (isset($GLOBALS['custom_listtags_pkg'])) {
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foreach($GLOBALS['custom_listtags_pkg'] as $tag) {
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$listtags[] = $tag;
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}
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}
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return parse_xml_config_raw($cffile, $rootobj, $isstring);
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}
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function parse_xml_config_raw($cffile, $rootobj, $isstring = "false") {
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global $depth, $curpath, $parsedcfg, $havedata, $listtags;
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$parsedcfg = array();
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$curpath = array();
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$depth = 0;
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$havedata = 0;
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$xml_parser = xml_parser_create();
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xml_set_element_handler($xml_parser, "startElement", "endElement");
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xml_set_character_data_handler($xml_parser, "cdata");
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if (!($fp = fopen($cffile, "r"))) {
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die("Error: could not open XML input\n");
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}
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while ($data = fread($fp, 4096)) {
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if (!xml_parse($xml_parser, $data, feof($fp))) {
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log_error(sprintf("XML error: %s at line %d\n",
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xml_error_string(xml_get_error_code($xml_parser)),
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xml_get_current_line_number($xml_parser)));
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return -1;
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}
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}
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xml_parser_free($xml_parser);
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if (!$parsedcfg[$rootobj]) {
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die("XML error: no $rootobj object found!\n");
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}
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return $parsedcfg[$rootobj];
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}
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function dump_xml_config_sub($arr, $indent) {
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global $listtags;
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$xmlconfig = "";
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foreach ($arr as $ent => $val) {
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if (is_array($val)) {
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/* is it just a list of multiple values? */
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if (in_array(strtolower($ent), $listtags)) {
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foreach ($val as $cval) {
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if (is_array($cval)) {
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$xmlconfig .= str_repeat("\t", $indent);
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$xmlconfig .= "<$ent>\n";
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$xmlconfig .= dump_xml_config_sub($cval, $indent + 1);
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$xmlconfig .= str_repeat("\t", $indent);
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$xmlconfig .= "</$ent>\n";
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} else {
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$xmlconfig .= str_repeat("\t", $indent);
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if($cval === false) continue;
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if(($cval === true) || ($cval === "")) {
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$xmlconfig .= "<$ent/>\n";
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} else {
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$xmlconfig .= "<$ent>" . htmlspecialchars($cval) . "</$ent>\n";
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}
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}
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}
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} else {
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/* it's an array */
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$xmlconfig .= str_repeat("\t", $indent);
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$xmlconfig .= "<$ent>\n";
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$xmlconfig .= dump_xml_config_sub($val, $indent + 1);
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$xmlconfig .= str_repeat("\t", $indent);
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$xmlconfig .= "</$ent>\n";
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}
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} else {
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if ((is_bool($val) && ($val == true)) || ($val === "")) {
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$xmlconfig .= str_repeat("\t", $indent);
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$xmlconfig .= "<$ent/>\n";
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} else if (!is_bool($val)) {
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$xmlconfig .= str_repeat("\t", $indent);
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$xmlconfig .= "<$ent>" . htmlspecialchars($val) . "</$ent>\n";
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}
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}
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}
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return $xmlconfig;
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}
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function dump_xml_config($arr, $rootobj) {
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global $listtags;
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$listtags = listtags();
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if (isset($GLOBALS['custom_listtags'])) {
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foreach($GLOBALS['custom_listtags'] as $tag) {
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$listtags[] = $tag;
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}
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}
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return dump_xml_config_raw($arr, $rootobj);
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}
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function dump_xml_config_pkg($arr, $rootobj) {
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global $listtags;
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$listtags = listtags_pkg();
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if (isset($GLOBALS['custom_listtags_pkg'])) {
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foreach($GLOBALS['custom_listtags_pkg'] as $tag) {
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$listtags[] = $tag;
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}
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}
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return dump_xml_config_raw($arr, $rootobj);
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}
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function dump_xml_config_raw($arr, $rootobj) {
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$xmlconfig = "<?xml version=\"1.0\"?" . ">\n";
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$xmlconfig .= "<$rootobj>\n";
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$xmlconfig .= dump_xml_config_sub($arr, 1);
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$xmlconfig .= "</$rootobj>\n";
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return $xmlconfig;
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}
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?>
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