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