1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
<?php
namespace Sabre\VObject;
use Sabre\Xml;
/**
* A node is the root class for every element in an iCalendar of vCard object.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
abstract class Node implements \IteratorAggregate, \ArrayAccess, \Countable, \JsonSerializable, Xml\XmlSerializable
{
/**
* The following constants are used by the validate() method.
*
* If REPAIR is set, the validator will attempt to repair any broken data
* (if possible).
*/
const REPAIR = 1;
/**
* If this option is set, the validator will operate on the vcards on the
* assumption that the vcards need to be valid for CardDAV.
*
* This means for example that the UID is required, whereas it is not for
* regular vcards.
*/
const PROFILE_CARDDAV = 2;
/**
* If this option is set, the validator will operate on iCalendar objects
* on the assumption that the vcards need to be valid for CalDAV.
*
* This means for example that calendars can only contain objects with
* identical component types and UIDs.
*/
const PROFILE_CALDAV = 4;
/**
* Reference to the parent object, if this is not the top object.
*
* @var Node
*/
public $parent;
/**
* Iterator override.
*
* @var ElementList
*/
protected $iterator = null;
/**
* The root document.
*
* @var Component
*/
protected $root;
/**
* Serializes the node into a mimedir format.
*
* @return string
*/
abstract public function serialize();
/**
* This method returns an array, with the representation as it should be
* encoded in JSON. This is used to create jCard or jCal documents.
*
* @return array
*/
#[\ReturnTypeWillChange]
abstract public function jsonSerialize();
/**
* This method serializes the data into XML. This is used to create xCard or
* xCal documents.
*
* @param Xml\Writer $writer XML writer
*/
abstract public function xmlSerialize(Xml\Writer $writer);
/**
* Call this method on a document if you're done using it.
*
* It's intended to remove all circular references, so PHP can easily clean
* it up.
*/
public function destroy()
{
$this->parent = null;
$this->root = null;
}
/* {{{ IteratorAggregator interface */
/**
* Returns the iterator for this object.
*
* @return ElementList
*/
#[\ReturnTypeWillChange]
public function getIterator()
{
if (!is_null($this->iterator)) {
return $this->iterator;
}
return new ElementList([$this]);
}
/**
* Sets the overridden iterator.
*
* Note that this is not actually part of the iterator interface
*/
public function setIterator(ElementList $iterator)
{
$this->iterator = $iterator;
}
/**
* Validates the node for correctness.
*
* The following options are supported:
* Node::REPAIR - May attempt to automatically repair the problem.
*
* This method returns an array with detected problems.
* Every element has the following properties:
*
* * level - problem level.
* * message - A human-readable string describing the issue.
* * node - A reference to the problematic node.
*
* The level means:
* 1 - The issue was repaired (only happens if REPAIR was turned on)
* 2 - An inconsequential issue
* 3 - A severe issue.
*
* @param int $options
*
* @return array
*/
public function validate($options = 0)
{
return [];
}
/* }}} */
/* {{{ Countable interface */
/**
* Returns the number of elements.
*
* @return int
*/
#[\ReturnTypeWillChange]
public function count()
{
$it = $this->getIterator();
return $it->count();
}
/* }}} */
/* {{{ ArrayAccess Interface */
/**
* Checks if an item exists through ArrayAccess.
*
* This method just forwards the request to the inner iterator
*
* @param int $offset
*
* @return bool
*/
#[\ReturnTypeWillChange]
public function offsetExists($offset)
{
$iterator = $this->getIterator();
return $iterator->offsetExists($offset);
}
/**
* Gets an item through ArrayAccess.
*
* This method just forwards the request to the inner iterator
*
* @param int $offset
*
* @return mixed
*/
#[\ReturnTypeWillChange]
public function offsetGet($offset)
{
$iterator = $this->getIterator();
return $iterator->offsetGet($offset);
}
/**
* Sets an item through ArrayAccess.
*
* This method just forwards the request to the inner iterator
*
* @param int $offset
* @param mixed $value
*/
#[\ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
$iterator = $this->getIterator();
$iterator->offsetSet($offset, $value);
// @codeCoverageIgnoreStart
//
// This method always throws an exception, so we ignore the closing
// brace
}
// @codeCoverageIgnoreEnd
/**
* Sets an item through ArrayAccess.
*
* This method just forwards the request to the inner iterator
*
* @param int $offset
*/
#[\ReturnTypeWillChange]
public function offsetUnset($offset)
{
$iterator = $this->getIterator();
$iterator->offsetUnset($offset);
// @codeCoverageIgnoreStart
//
// This method always throws an exception, so we ignore the closing
// brace
}
// @codeCoverageIgnoreEnd
/* }}} */
}
|
