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117 lines
3.5 KiB
PHP
117 lines
3.5 KiB
PHP
<?php
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namespace Sabre\DAV\Xml\Element;
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use Sabre\DAV\Xml\Property\Complex;
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use Sabre\Xml\Reader;
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use Sabre\Xml\XmlDeserializable;
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/**
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* This class is responsible for decoding the {DAV:}prop element as it appears
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* in {DAV:}property-update.
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*
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* This class doesn't return an instance of itself. It just returns a
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* key->value array.
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*
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* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
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* @author Evert Pot (http://evertpot.com/)
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* @license http://sabre.io/license/ Modified BSD License
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*/
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class Prop implements XmlDeserializable {
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/**
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* The deserialize method is called during xml parsing.
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*
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* This method is called statically, this is because in theory this method
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* may be used as a type of constructor, or factory method.
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*
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* Often you want to return an instance of the current class, but you are
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* free to return other data as well.
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*
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* You are responsible for advancing the reader to the next element. Not
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* doing anything will result in a never-ending loop.
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*
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* If you just want to skip parsing for this element altogether, you can
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* just call $reader->next();
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*
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* $reader->parseInnerTree() will parse the entire sub-tree, and advance to
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* the next element.
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*
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* @param Reader $reader
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* @return mixed
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*/
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static function xmlDeserialize(Reader $reader) {
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// If there's no children, we don't do anything.
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if ($reader->isEmptyElement) {
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$reader->next();
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return [];
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}
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$values = [];
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$reader->read();
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do {
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if ($reader->nodeType === Reader::ELEMENT) {
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$clark = $reader->getClark();
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$values[$clark] = self::parseCurrentElement($reader)['value'];
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} else {
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$reader->read();
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}
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} while ($reader->nodeType !== Reader::END_ELEMENT);
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$reader->read();
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return $values;
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}
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/**
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* This function behaves similar to Sabre\Xml\Reader::parseCurrentElement,
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* but instead of creating deep xml array structures, it will turn any
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* top-level element it doesn't recognize into either a string, or an
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* XmlFragment class.
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*
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* This method returns arn array with 2 properties:
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* * name - A clark-notation XML element name.
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* * value - The parsed value.
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*
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* @param Reader $reader
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* @return array
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*/
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private static function parseCurrentElement(Reader $reader) {
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$name = $reader->getClark();
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if (array_key_exists($name, $reader->elementMap)) {
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$deserializer = $reader->elementMap[$name];
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if (is_subclass_of($deserializer, 'Sabre\\Xml\\XmlDeserializable')) {
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$value = call_user_func([$deserializer, 'xmlDeserialize'], $reader);
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} elseif (is_callable($deserializer)) {
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$value = call_user_func($deserializer, $reader);
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} else {
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$type = gettype($deserializer);
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if ($type === 'string') {
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$type .= ' (' . $deserializer . ')';
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} elseif ($type === 'object') {
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$type .= ' (' . get_class($deserializer) . ')';
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}
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throw new \LogicException('Could not use this type as a deserializer: ' . $type);
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}
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} else {
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$value = Complex::xmlDeserialize($reader);
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}
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return [
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'name' => $name,
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'value' => $value,
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];
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}
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}
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