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<?php
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/*
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xmlreader.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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/*
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* Please keep this list alpha sorted and no longer than 80 characters
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* I know it's a pain, but it's a pain to find stuff too if it's not
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*/
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$ret = array(
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'acls', 'alias', 'aliasurl', 'allowedip', 'allowedhostname', 'authserver',
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'bridged', 'build_port_path',
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'ca', 'cacert', 'cert', 'crl', 'clone', 'config', 'container', 'columnitem',
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'depends_on_package', 'disk', 'dnsserver', 'dnsupdate', 'domainoverrides', 'dyndns',
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'earlyshellcmd', 'element', 'encryption-algorithm-option',
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'field', 'fieldname',
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'gateway_item', 'gateway_group', 'gif', 'gre', 'group',
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'hash-algorithm-option', 'hosts', 'member', 'ifgroupentry', 'igmpentry', 'interface_array', 'item', 'key',
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'lagg', 'lbaction', 'lbpool', 'l7rules', 'lbprotocol',
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'member', 'menu', 'tab', 'mobilekey', 'monitor_type', 'mount',
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'npt', 'ntpserver',
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'onetoone', 'openvpn-server', 'openvpn-client', 'openvpn-csc', 'option',
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'package', 'passthrumac', 'phase1', 'phase2', 'ppp', 'pppoe', 'priv', 'proxyarpnet', 'pool',
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'qinqentry', 'queue',
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'pages', 'pipe', 'radnsserver', 'roll', 'route', 'row', 'rrddatafile', 'rule',
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'schedule', 'service', 'servernat', 'servers',
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'serversdisabled', 'shellcmd', 'staticmap', 'subqueue',
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'timerange', 'tunnel', 'user', 'vip', 'virtual_server', 'vlan',
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'winsserver', 'wolentry', 'widget'
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);
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return array_flip($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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$ret = array('depends_on_package', 'onetoone', 'queue', 'rule', 'servernat', 'alias', 'additional_files_needed', 'tab', 'template', 'menu', 'rowhelperfield', 'service', 'step', 'package', 'columnitem', 'option', 'item', 'field', 'package', 'file');
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return array_flip($ret);
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}
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function add_elements(&$cfgarray, &$parser) {
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global $listtags;
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while ($parser->read()) {
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switch ($parser->nodeType) {
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case XMLReader::WHITESPACE:
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case XMLReader::SIGNIFICANT_WHITESPACE:
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break;
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case XMLReader::ELEMENT:
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if (isset($listtags[strtolower($parser->name)])) {
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$cfgref =& $cfgarray[$parser->name][count($cfgarray[$parser->name])];
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if (!$parser->isEmptyElement) {
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add_elements($cfgref, $parser);
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} else {
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$cfgref = array();
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}
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} else {
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if (isset($cfgarray[$parser->name]) && (!is_array($cfgarray[$parser->name]) || !isset($cfgarray[$parser->name][0]))) {
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$nodebkp = $cfgarray[$parser->name];
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$cfgarray[$parser->name] = array();
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$cfgarray[$parser->name][] = $nodebkp;
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$cfgref =& $cfgarray[$parser->name][0];
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unset($nodebkp);
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} else {
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$cfgref =& $cfgarray[$parser->name];
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}
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if ($parser->isEmptyElement) {
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if (is_array($cfgref)) {
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$cfgref[] = array();
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} else {
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$cfgref = "";
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}
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} else {
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if (is_array($cfgref)) {
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$cfgref =& $cfgarray[$parser->name][count($cfgarray[$parser->name])];
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add_elements($cfgref, $parser);
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} else {
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add_elements($cfgref, $parser);
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}
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}
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}
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$i = 0;
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while ($parser->moveToAttributeNo($i)) {
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$cfgref[$parser->name] = $parser->value;
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$i++;
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}
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break;
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case XMLReader::TEXT:
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case XMLReader::CDATA:
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$cfgarray = $parser->value;
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break;
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case XMLReader::END_ELEMENT:
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return;
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break;
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default:
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break;
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}
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}
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}
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function parse_xml_config($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] = $tag;
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}
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}
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return parse_xml_config_raw($cffile, $rootobj);
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}
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function parse_xml_config_pkg($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] = $tag;
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}
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}
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return parse_xml_config_raw($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 $listtags;
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$parsedcfg = array();
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$par = new XMLReader();
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if ($par->open($cffile, "UTF-8", LIBXML_NOERROR | LIBXML_NOWARNING)) {
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add_elements($parsedcfg, $par);
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$par->close();
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} else {
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log_error(sprintf(gettext("Error returned while trying to parse %s"), $cffile));
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}
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if ($rootobj) {
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if (!is_array($rootobj)) {
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$rootobj = array($rootobj);
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}
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foreach ($rootobj as $rootobj_name) {
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if ($parsedcfg[$rootobj_name]) {
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break;
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}
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}
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return $parsedcfg[$rootobj_name];
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} else {
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return $parsedcfg;
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}
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}
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function dump_xml_config_sub(& $writer, $arr) {
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global $listtags;
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foreach ($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 (isset($listtags[strtolower($ent)])) {
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foreach ($val as $cval) {
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if (is_array($cval)) {
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if (empty($cval)) {
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$writer->writeElement($ent);
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} else {
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$writer->startElement($ent);
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dump_xml_config_sub($writer, $cval);
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$writer->endElement();
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}
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} else {
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if ($cval === false) {
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continue;
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}
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if ((is_bool($val) && ($val == true)) || ($val === "")) {
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$writer->writeElement($ent);
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} else if (!is_bool($val)) {
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$writer->writeElement($ent, $cval);
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}
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}
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}
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} else if (empty($val)) {
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$writer->writeElement($ent);
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} else {
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/* it's an array */
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$writer->startElement($ent);
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dump_xml_config_sub($writer, $val);
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$writer->endElement();
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}
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} else {
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if ((is_bool($val) && ($val == true)) || ($val === "")) {
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$writer->writeElement($ent);
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} else if (!is_bool($val)) {
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$writer->writeElement($ent, $val);
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}
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}
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}
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}
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function dump_xml_config($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] = $tag;
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}
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}
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return dump_xml_config_raw($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] = $tag;
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}
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}
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return dump_xml_config_raw($arr, $rootobj);
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}
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function dump_xml_config_raw($arr, $rootobj) {
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$writer = new XMLWriter();
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$writer->openMemory();
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$writer->setIndent(true);
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$writer->setIndentString("\t");
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$writer->startDocument("1.0", "UTF-8");
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$writer->startElement($rootobj);
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dump_xml_config_sub($writer, $arr);
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$writer->endElement();
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$writer->endDocument();
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$xmlconfig = $writer->outputMemory(true);
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return $xmlconfig;
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}
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?>
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