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<?php
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/*
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xmlparse_attr.inc
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functions to parse configuration files in XML format with attributes
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Copyright (C) 2010 Erik Fonnesbeck
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All rights reserved.
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Based on xmlparse.inc, originally 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 regdomain.xml */
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function listtags_rd() {
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$ret = explode(" ",
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"band country flags freqband netband rd"
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);
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return $ret;
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}
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function startElement_attr($parser, $name, $attrs) {
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global $parsedcfg, $depth, $curpath, $havedata, $listtags, $parsedattrs;
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array_push($curpath, strtolower($name));
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$ptr =& $parsedcfg;
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if (!empty($attrs)) {
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$attrptr =& $parsedattrs;
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$writeattrs = true;
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}
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foreach ($curpath as $path) {
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$ptr =& $ptr[$path];
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if (isset($writeattrs)) {
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$attrptr =& $attrptr[$path];
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}
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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($ptr));
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if (isset($writeattrs)) {
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if (!is_array($attrptr)) {
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$attrptr = array();
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}
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$attrptr[count($ptr)] = $attrs;
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}
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} else if (isset($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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} else if (isset($writeattrs)) {
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$attrptr = $attrs;
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}
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$depth++;
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$havedata = $depth;
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}
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function endElement_attr($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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}
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$depth--;
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}
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function cData_attr($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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$havedata++;
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}
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}
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}
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}
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function parse_xml_regdomain(&$rdattributes, $rdfile = '', $rootobj = 'regulatory-data') {
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global $g, $listtags;
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if (empty($rdfile)) {
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$rdfile = $g['etc_path'] . '/regdomain.xml';
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}
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$listtags = listtags_rd();
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$parsed_xml = array();
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if (file_exists($g['tmp_path'] . '/regdomain.cache')) {
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$parsed_xml = unserialize(file_get_contents($g['tmp_path'] . '/regdomain.cache'));
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if (!empty($parsed_xml)) {
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$rdmain = $parsed_xml['main'];
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$rdattributes = $parsed_xml['attributes'];
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}
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}
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if (empty($parsed_xml) && file_exists($g['etc_path'] . '/regdomain.xml')) {
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$rdmain = parse_xml_config_raw_attr($rdfile, $rootobj, $rdattributes);
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// unset parts that aren't used before making cache
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foreach ($rdmain['regulatory-domains']['rd'] as $rdkey => $rdentry) {
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if (isset($rdmain['regulatory-domains']['rd'][$rdkey]['netband'])) {
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unset($rdmain['regulatory-domains']['rd'][$rdkey]['netband']);
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}
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if (isset($rdattributes['regulatory-domains']['rd'][$rdkey]['netband'])) {
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unset($rdattributes['regulatory-domains']['rd'][$rdkey]['netband']);
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}
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}
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if (isset($rdmain['shared-frequency-bands'])) {
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unset($rdmain['shared-frequency-bands']);
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}
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if (isset($rdattributes['shared-frequency-bands'])) {
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unset($rdattributes['shared-frequency-bands']);
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}
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$parsed_xml = array('main' => $rdmain, 'attributes' => $rdattributes);
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$rdcache = fopen($g['tmp_path'] . '/regdomain.cache', "w");
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fwrite($rdcache, serialize($parsed_xml));
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fclose($rdcache);
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}
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return $rdmain;
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}
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function parse_xml_config_raw_attr($cffile, $rootobj, &$parsed_attributes, $isstring = "false") {
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global $depth, $curpath, $parsedcfg, $havedata, $listtags, $parsedattrs;
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$parsedcfg = array();
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$curpath = array();
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$depth = 0;
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$havedata = 0;
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if (isset($parsed_attributes)) {
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$parsedattrs = array();
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}
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$xml_parser = xml_parser_create();
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xml_set_element_handler($xml_parser, "startElement_attr", "endElement_attr");
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xml_set_character_data_handler($xml_parser, "cData_attr");
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xml_parser_set_option($xml_parser, XML_OPTION_SKIP_WHITE, 1);
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if (!($fp = fopen($cffile, "r"))) {
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log_error(gettext("Error: could not open XML input") . "\n");
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if (isset($parsed_attributes)) {
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$parsed_attributes = array();
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unset($parsedattrs);
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}
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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') . "\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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if (isset($parsed_attributes)) {
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$parsed_attributes = array();
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unset($parsedattrs);
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}
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return -1;
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}
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}
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xml_parser_free($xml_parser);
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if (!$parsedcfg[$rootobj]) {
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log_error(sprintf(gettext("XML error: no %s object found!") . "\n", $rootobj));
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if (isset($parsed_attributes)) {
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$parsed_attributes = array();
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unset($parsedattrs);
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}
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return -1;
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}
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if (isset($parsed_attributes)) {
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if ($parsedattrs[$rootobj]) {
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$parsed_attributes = $parsedattrs[$rootobj];
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}
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unset($parsedattrs);
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}
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return $parsedcfg[$rootobj];
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}
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?>
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