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https://git.friendi.ca/friendica/friendica-addons.git
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220 lines
6 KiB
PHP
220 lines
6 KiB
PHP
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<?php
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/**
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* Parses the addressbook-query report request body.
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*
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* Whoever designed this format, and the CalDAV equivalent even more so,
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* has no feel for design.
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*
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* @package Sabre
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* @subpackage CardDAV
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* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
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* @author Evert Pot (http://www.rooftopsolutions.nl/)
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* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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*/
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class Sabre_CardDAV_AddressBookQueryParser {
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const TEST_ANYOF = 'anyof';
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const TEST_ALLOF = 'allof';
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/**
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* List of requested properties the client wanted
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*
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* @var array
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*/
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public $requestedProperties;
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/**
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* The number of results the client wants
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*
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* null means it wasn't specified, which in most cases means 'all results'.
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*
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* @var int|null
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*/
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public $limit;
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/**
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* List of property filters.
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*
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* @var array
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*/
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public $filters;
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/**
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* Either TEST_ANYOF or TEST_ALLOF
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*
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* @var string
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*/
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public $test;
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/**
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* DOM Document
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*
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* @var DOMDocument
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*/
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protected $dom;
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/**
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* DOM XPath object
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*
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* @var DOMXPath
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*/
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protected $xpath;
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/**
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* Creates the parser
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*
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* @param DOMDocument $dom
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*/
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public function __construct(DOMDocument $dom) {
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$this->dom = $dom;
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$this->xpath = new DOMXPath($dom);
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$this->xpath->registerNameSpace('card',Sabre_CardDAV_Plugin::NS_CARDDAV);
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}
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/**
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* Parses the request.
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*
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* @return void
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*/
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public function parse() {
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$filterNode = null;
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$limit = $this->xpath->evaluate('number(/card:addressbook-query/card:limit/card:nresults)');
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if (is_nan($limit)) $limit = null;
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$filter = $this->xpath->query('/card:addressbook-query/card:filter');
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// According to the CardDAV spec there needs to be exactly 1 filter
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// element. However, KDE 4.8.2 contains a bug that will encode 0 filter
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// elements, so this is a workaround for that.
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//
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// See: https://bugs.kde.org/show_bug.cgi?id=300047
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if ($filter->length === 0) {
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$test = null;
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$filter = null;
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} elseif ($filter->length === 1) {
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$filter = $filter->item(0);
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$test = $this->xpath->evaluate('string(@test)', $filter);
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} else {
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throw new Sabre_DAV_Exception_BadRequest('Only one filter element is allowed');
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}
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if (!$test) $test = self::TEST_ANYOF;
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if ($test !== self::TEST_ANYOF && $test !== self::TEST_ALLOF) {
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throw new Sabre_DAV_Exception_BadRequest('The test attribute must either hold "anyof" or "allof"');
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}
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$propFilters = array();
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$propFilterNodes = $this->xpath->query('card:prop-filter', $filter);
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for($ii=0; $ii < $propFilterNodes->length; $ii++) {
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$propFilters[] = $this->parsePropFilterNode($propFilterNodes->item($ii));
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}
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$this->filters = $propFilters;
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$this->limit = $limit;
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$this->requestedProperties = array_keys(Sabre_DAV_XMLUtil::parseProperties($this->dom->firstChild));
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$this->test = $test;
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}
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/**
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* Parses the prop-filter xml element
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*
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* @param DOMElement $propFilterNode
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* @return array
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*/
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protected function parsePropFilterNode(DOMElement $propFilterNode) {
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$propFilter = array();
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$propFilter['name'] = $propFilterNode->getAttribute('name');
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$propFilter['test'] = $propFilterNode->getAttribute('test');
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if (!$propFilter['test']) $propFilter['test'] = 'anyof';
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$propFilter['is-not-defined'] = $this->xpath->query('card:is-not-defined', $propFilterNode)->length>0;
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$paramFilterNodes = $this->xpath->query('card:param-filter', $propFilterNode);
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$propFilter['param-filters'] = array();
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for($ii=0;$ii<$paramFilterNodes->length;$ii++) {
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$propFilter['param-filters'][] = $this->parseParamFilterNode($paramFilterNodes->item($ii));
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}
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$propFilter['text-matches'] = array();
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$textMatchNodes = $this->xpath->query('card:text-match', $propFilterNode);
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for($ii=0;$ii<$textMatchNodes->length;$ii++) {
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$propFilter['text-matches'][] = $this->parseTextMatchNode($textMatchNodes->item($ii));
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}
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return $propFilter;
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}
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/**
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* Parses the param-filter element
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*
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* @param DOMElement $paramFilterNode
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* @return array
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*/
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public function parseParamFilterNode(DOMElement $paramFilterNode) {
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$paramFilter = array();
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$paramFilter['name'] = $paramFilterNode->getAttribute('name');
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$paramFilter['is-not-defined'] = $this->xpath->query('card:is-not-defined', $paramFilterNode)->length>0;
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$paramFilter['text-match'] = null;
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$textMatch = $this->xpath->query('card:text-match', $paramFilterNode);
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if ($textMatch->length>0) {
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$paramFilter['text-match'] = $this->parseTextMatchNode($textMatch->item(0));
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}
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return $paramFilter;
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}
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/**
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* Text match
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*
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* @param DOMElement $textMatchNode
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* @return array
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*/
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public function parseTextMatchNode(DOMElement $textMatchNode) {
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$matchType = $textMatchNode->getAttribute('match-type');
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if (!$matchType) $matchType = 'contains';
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if (!in_array($matchType, array('contains', 'equals', 'starts-with', 'ends-with'))) {
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throw new Sabre_DAV_Exception_BadRequest('Unknown match-type: ' . $matchType);
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}
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$negateCondition = $textMatchNode->getAttribute('negate-condition');
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$negateCondition = $negateCondition==='yes';
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$collation = $textMatchNode->getAttribute('collation');
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if (!$collation) $collation = 'i;unicode-casemap';
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return array(
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'negate-condition' => $negateCondition,
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'collation' => $collation,
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'match-type' => $matchType,
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'value' => $textMatchNode->nodeValue
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);
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}
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}
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