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-rw-r--r--3rdparty/Sabre/CalDAV/XMLUtil.php208
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diff --git a/3rdparty/Sabre/CalDAV/XMLUtil.php b/3rdparty/Sabre/CalDAV/XMLUtil.php
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--- a/3rdparty/Sabre/CalDAV/XMLUtil.php
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-<?php
-
-/**
- * XML utilities for CalDAV
- *
- * This class contains a few static methods used for parsing certain CalDAV
- * requests.
- *
- * @package Sabre
- * @subpackage CalDAV
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/)
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_CalDAV_XMLUtil {
-
- /**
- * This function parses the calendar-query report request body
- *
- * The body is quite complicated, so we're turning it into a PHP
- * array.
- *
- * The resulting associative array has xpath expressions as keys.
- * By default the xpath expressions should simply be checked for existance
- * The xpath expressions can point to elements or attributes.
- *
- * The array values can contain a number of items, which alters the query
- * filter.
- *
- * * time-range. Must also check if the todo or event falls within the
- * specified timerange. How this is interpreted depends on
- * the type of object (VTODO, VEVENT, VJOURNAL, etc)
- * * is-not-defined
- * Instead of checking if the attribute or element exist,
- * we must check if it doesn't.
- * * text-match
- * Checks if the value of the attribute or element matches
- * the specified value. This is actually another array with
- * the 'collation', 'value' and 'negate-condition' items.
- *
- * Refer to the CalDAV spec for more information.
- *
- * @param DOMNode $domNode
- * @param string $basePath used for recursive calls.
- * @param array $filters used for recursive calls.
- * @return array
- */
- static public function parseCalendarQueryFilters($domNode,$basePath = '/c:iCalendar', &$filters = array()) {
-
- foreach($domNode->childNodes as $child) {
-
- switch(Sabre_DAV_XMLUtil::toClarkNotation($child)) {
-
- case '{urn:ietf:params:xml:ns:caldav}comp-filter' :
- case '{urn:ietf:params:xml:ns:caldav}prop-filter' :
-
- $filterName = $basePath . '/' . 'c:' . strtolower($child->getAttribute('name'));
- $filters[$filterName] = array();
-
- self::parseCalendarQueryFilters($child, $filterName,$filters);
- break;
-
- case '{urn:ietf:params:xml:ns:caldav}time-range' :
-
- if ($start = $child->getAttribute('start')) {
- $start = self::parseICalendarDateTime($start);
- } else {
- $start = null;
- }
- if ($end = $child->getAttribute('end')) {
- $end = self::parseICalendarDateTime($end);
- } else {
- $end = null;
- }
-
- if (!is_null($start) && !is_null($end) && $end <= $start) {
- throw new Sabre_DAV_Exception_BadRequest('The end-date must be larger than the start-date in the time-range filter');
- }
-
- $filters[$basePath]['time-range'] = array(
- 'start' => $start,
- 'end' => $end
- );
- break;
-
- case '{urn:ietf:params:xml:ns:caldav}is-not-defined' :
- $filters[$basePath]['is-not-defined'] = true;
- break;
-
- case '{urn:ietf:params:xml:ns:caldav}param-filter' :
-
- $filterName = $basePath . '/@' . strtolower($child->getAttribute('name'));
- $filters[$filterName] = array();
- self::parseCalendarQueryFilters($child, $filterName, $filters);
- break;
-
- case '{urn:ietf:params:xml:ns:caldav}text-match' :
-
- $collation = $child->getAttribute('collation');
- if (!$collation) $collation = 'i;ascii-casemap';
-
- $filters[$basePath]['text-match'] = array(
- 'collation' => ($collation == 'default'?'i;ascii-casemap':$collation),
- 'negate-condition' => $child->getAttribute('negate-condition')==='yes',
- 'value' => $child->nodeValue,
- );
- break;
-
- }
-
- }
-
- return $filters;
-
- }
-
- /**
- * Parses an iCalendar (rfc5545) formatted datetime and returns a DateTime object
- *
- * Specifying a reference timezone is optional. It will only be used
- * if the non-UTC format is used. The argument is used as a reference, the
- * returned DateTime object will still be in the UTC timezone.
- *
- * @param string $dt
- * @param DateTimeZone $tz
- * @return DateTime
- */
- static public function parseICalendarDateTime($dt,DateTimeZone $tz = null) {
-
- // Format is YYYYMMDD + "T" + hhmmss
- $result = preg_match('/^([1-3][0-9]{3})([0-1][0-9])([0-3][0-9])T([0-2][0-9])([0-5][0-9])([0-5][0-9])([Z]?)$/',$dt,$matches);
-
- if (!$result) {
- throw new Sabre_DAV_Exception_BadRequest('The supplied iCalendar datetime value is incorrect: ' . $dt);
- }
-
- if ($matches[7]==='Z' || is_null($tz)) {
- $tz = new DateTimeZone('UTC');
- }
- $date = new DateTime($matches[1] . '-' . $matches[2] . '-' . $matches[3] . ' ' . $matches[4] . ':' . $matches[5] .':' . $matches[6], $tz);
-
- // Still resetting the timezone, to normalize everything to UTC
- $date->setTimeZone(new DateTimeZone('UTC'));
- return $date;
-
- }
-
- /**
- * Parses an iCalendar (rfc5545) formatted datetime and returns a DateTime object
- *
- * @param string $date
- * @param DateTimeZone $tz
- * @return DateTime
- */
- static public function parseICalendarDate($date) {
-
- // Format is YYYYMMDD
- $result = preg_match('/^([1-3][0-9]{3})([0-1][0-9])([0-3][0-9])$/',$date,$matches);
-
- if (!$result) {
- throw new Sabre_DAV_Exception_BadRequest('The supplied iCalendar date value is incorrect: ' . $date);
- }
-
- $date = new DateTime($matches[1] . '-' . $matches[2] . '-' . $matches[3], new DateTimeZone('UTC'));
- return $date;
-
- }
-
- /**
- * Parses an iCalendar (RFC5545) formatted duration and returns a string suitable
- * for strtotime or DateTime::modify.
- *
- * NOTE: When we require PHP 5.3 this can be replaced by the DateTimeInterval object, which
- * supports ISO 8601 Intervals, which is a superset of ICalendar durations.
- *
- * For now though, we're just gonna live with this messy system
- *
- * @param string $duration
- * @return string
- */
- static public function parseICalendarDuration($duration) {
-
- $result = preg_match('/^(?P<plusminus>\+|-)?P((?P<week>\d+)W)?((?P<day>\d+)D)?(T((?P<hour>\d+)H)?((?P<minute>\d+)M)?((?P<second>\d+)S)?)?$/', $duration, $matches);
- if (!$result) {
- throw new Sabre_DAV_Exception_BadRequest('The supplied iCalendar duration value is incorrect: ' . $duration);
- }
-
- $parts = array(
- 'week',
- 'day',
- 'hour',
- 'minute',
- 'second',
- );
-
- $newDur = '';
- foreach($parts as $part) {
- if (isset($matches[$part]) && $matches[$part]) {
- $newDur.=' '.$matches[$part] . ' ' . $part . 's';
- }
- }
-
- $newDur = ($matches['plusminus']==='-'?'-':'+') . trim($newDur);
- return $newDur;
-
- }
-
-}
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