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<?php
class plistParser extends XMLReader
{
public function parse($file) {
trigger_error(
'plistParser::parse() is deprecated, please use plistParser::parseFile()',
E_USER_NOTICE
);
return $this->parseFile($file);
}
public function parseFile($file) {
if(basename($file) == $file) {
throw new Exception("Non-relative file path expected", 1);
}
$this->open("file://" . $file);
return $this->process();
}
public function parseString($string) {
$this->XML($string);
return $this->process();
}
private function process() {
// plist's always start with a doctype, use it as a validity check
$this->read();
if($this->nodeType !== XMLReader::DOC_TYPE || $this->name !== "plist") {
throw new Exception(sprintf("Error parsing plist. nodeType: %d -- Name: %s", $this->nodeType, $this->name), 2);
}
// as one additional check, the first element node is always a plist
if(!$this->next("plist") || $this->nodeType !== XMLReader::ELEMENT || $this->name !== "plist") {
throw new Exception(sprintf("Error parsing plist. nodeType: %d -- Name: %s", $this->nodeType, $this->name), 3);
}
$plist = array();
while($this->read()) {
if($this->nodeType == XMLReader::ELEMENT) {
$plist[] = $this->parse_node();
}
}
if(count($plist) == 1 && $plist[0]) {
// Most plists have a dict as their outer most tag
// So instead of returning an array with only one element
// return the contents of the dict instead
return $plist[0];
} else {
return $plist;
}
}
private function parse_node() {
// If not an element, nothing for us to do
if($this->nodeType !== XMLReader::ELEMENT) return;
switch($this->name) {
case 'data':
return base64_decode($this->getNodeText());
break;
case 'real':
return floatval($this->getNodeText());
break;
case 'string':
return $this->getNodeText();
break;
case 'integer':
return intval($this->getNodeText());
break;
case 'date':
return $this->getNodeText();
break;
case 'true':
return true;
break;
case 'false':
return false;
break;
case 'array':
return $this->parse_array();
break;
case 'dict':
return $this->parse_dict();
break;
default:
// per DTD, the above is the only valid types
throw new Exception(sprintf("Not a valid plist. %s is not a valid type", $this->name), 4);
}
}
private function parse_dict() {
$array = array();
$this->nextOfType(XMLReader::ELEMENT);
do {
if($this->nodeType !== XMLReader::ELEMENT || $this->name !== "key") {
// If we aren't on a key, then jump to the next key
// per DTD, dicts have to have <key><somevalue> and nothing else
if(!$this->next("key")) {
// no more keys left so per DTD we are done with this dict
return $array;
}
}
$key = $this->getNodeText();
$this->nextOfType(XMLReader::ELEMENT);
$array[$key] = $this->parse_node();
$this->nextOfType(XMLReader::ELEMENT, XMLReader::END_ELEMENT);
} while($this->nodeType && !$this->isNodeOfTypeName(XMLReader::END_ELEMENT, "dict"));
return $array;
}
private function parse_array() {
$array = array();
$this->nextOfType(XMLReader::ELEMENT);
do {
$array[] = $this->parse_node();
// skip over any whitespace
$this->nextOfType(XMLReader::ELEMENT, XMLReader::END_ELEMENT);
} while($this->nodeType && !$this->isNodeOfTypeName(XMLReader::END_ELEMENT, "array"));
return $array;
}
private function getNodeText() {
$string = $this->readString();
// now gobble up everything up to the closing tag
$this->nextOfType(XMLReader::END_ELEMENT);
return $string;
}
private function nextOfType() {
$types = func_get_args();
// skip to next
$this->read();
// check if it's one of the types requested and loop until it's one we want
while($this->nodeType && !(in_array($this->nodeType, $types))) {
// node isn't of type requested, so keep going
$this->read();
}
}
private function isNodeOfTypeName($type, $name) {
return $this->nodeType === $type && $this->name === $name;
}
}