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<?php
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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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/*
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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 treated as a list not as a traditional array */
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function listtags_pkg() {
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$ret = array('build_port_path', 'depends_on_package', 'onetoone', 'queue', 'rule', 'servernat', 'alias', 'additional_files_needed', 'tab', 'template', 'menu', 'rowhelperfield', 'service', 'step', 'package', 'columnitem', 'option', 'item', 'field', 'package', 'file');
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return array_flip($ret);
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}
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function 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 (isset($listtags[strtolower($name)])) {
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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($ptr)) {
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/* multiple entries not allowed for this element, bail out */
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die(sprintf(gettext('XML error: %1$s at line %2$d cannot occur more than once') . "\n",
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$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 (isset($listtags[strtolower($name)])) {
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array_pop($curpath);
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}
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$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 .= html_entity_decode($data);
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} else {
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if (trim($data, " ") != "") {
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$ptr = html_entity_decode($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] = $tag;
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}
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}
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return parse_xml_config_raw($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] = $tag;
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}
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}
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$cfg =parse_xml_config_raw($cffile, $rootobj, $isstring);
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if ($cfg == -1) {
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return array();
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}
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return $cfg;
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}
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function parse_xml_config_raw($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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xml_parser_set_option($xml_parser, XML_OPTION_SKIP_WHITE, 1);
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if (!($fp = fopen($cffile, "r"))) {
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log_error(gettext("Error: could not open XML input") . "\n");
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return -1;
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}
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while ($data = fread($fp, 4096)) {
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if (!xml_parse($xml_parser, $data, feof($fp))) {
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log_error(sprintf(gettext('XML error: %1$s at line %2$d in %3$s') . "\n",
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xml_error_string(xml_get_error_code($xml_parser)),
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xml_get_current_line_number($xml_parser),
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$cffile));
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return -1;
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}
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}
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xml_parser_free($xml_parser);
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if ($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[$rootobj_name]) {
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break;
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}
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}
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if (!$parsedcfg[$rootobj_name]) {
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log_error(sprintf(gettext("XML error: no %s object found!") . "\n", implode(" or ", $rootobj)));
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return -1;
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}
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return $parsedcfg[$rootobj_name];
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} else {
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return $parsedcfg;
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}
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}
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function dump_xml_config_sub($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 (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($cval)) {
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$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", $indent);
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$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 .= "</$ent>\n";
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}
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} else {
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if ($cval === false) {
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continue;
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}
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$xmlconfig .= str_repeat("\t", $indent);
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if ((is_bool($cval) && $cval == true) || ($cval === "")) {
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$xmlconfig .= "<$ent/>\n";
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} else if ((substr($ent, 0, 5) == "descr") ||
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(substr($ent, 0, 6) == "detail") ||
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(substr($ent, 0, 12) == "login_banner") ||
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(substr($ent, 0, 9) == "ldap_attr") ||
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(substr($ent, 0, 9) == "ldap_bind") ||
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(substr($ent, 0, 11) == "ldap_basedn") ||
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(substr($ent, 0, 18) == "ldap_authcn") ||
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(substr($ent, 0, 19) == "ldap_extended_query")) {
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$xmlconfig .= "<$ent><![CDATA[" . htmlentities($cval) . "]]></$ent>\n";
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} else {
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$xmlconfig .= "<$ent>" . htmlentities($cval) . "</$ent>\n";
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}
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}
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}
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} else if (empty($val)) {
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$xmlconfig .= str_repeat("\t", $indent);
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$xmlconfig .= "<$ent/>\n";
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} else {
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/* it's an array */
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$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", $indent);
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if ((substr($ent, 0, 5) == "descr") ||
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(substr($ent, 0, 6) == "detail") ||
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(substr($ent, 0, 12) == "login_banner") ||
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(substr($ent, 0, 9) == "ldap_attr") ||
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(substr($ent, 0, 9) == "ldap_bind") ||
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(substr($ent, 0, 11) == "ldap_basedn") ||
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(substr($ent, 0, 18) == "ldap_authcn") ||
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(substr($ent, 0, 19) == "ldap_extended_query")) {
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$xmlconfig .= "<$ent><![CDATA[" . htmlentities($val) . "]]></$ent>\n";
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} else {
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$xmlconfig .= "<$ent>" . htmlentities($val) . "</$ent>\n";
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}
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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] = $tag;
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}
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}
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return dump_xml_config_raw($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, $rootobj) {
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$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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