blob: bce5146390026a417230243fc94be0299db93a6d (
plain)
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
|
<?php
/**
* ObjectTree class
*
* This implementation of the Tree class makes use of the INode, IFile and ICollection API's
*
* @package Sabre
* @subpackage DAV
* @copyright Copyright (C) 2007-2012 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_DAV_ObjectTree extends Sabre_DAV_Tree {
/**
* The root node
*
* @var Sabre_DAV_ICollection
*/
protected $rootNode;
/**
* This is the node cache. Accessed nodes are stored here
*
* @var array
*/
protected $cache = array();
/**
* Creates the object
*
* This method expects the rootObject to be passed as a parameter
*
* @param Sabre_DAV_ICollection $rootNode
*/
public function __construct(Sabre_DAV_ICollection $rootNode) {
$this->rootNode = $rootNode;
}
/**
* Returns the INode object for the requested path
*
* @param string $path
* @return Sabre_DAV_INode
*/
public function getNodeForPath($path) {
$path = trim($path,'/');
if (isset($this->cache[$path])) return $this->cache[$path];
//if (!$path || $path=='.') return $this->rootNode;
$currentNode = $this->rootNode;
// We're splitting up the path variable into folder/subfolder components and traverse to the correct node..
foreach(explode('/',$path) as $pathPart) {
// If this part of the path is just a dot, it actually means we can skip it
if ($pathPart=='.' || $pathPart=='') continue;
if (!($currentNode instanceof Sabre_DAV_ICollection))
throw new Sabre_DAV_Exception_NotFound('Could not find node at path: ' . $path);
$currentNode = $currentNode->getChild($pathPart);
}
$this->cache[$path] = $currentNode;
return $currentNode;
}
/**
* This function allows you to check if a node exists.
*
* @param string $path
* @return bool
*/
public function nodeExists($path) {
try {
// The root always exists
if ($path==='') return true;
list($parent, $base) = Sabre_DAV_URLUtil::splitPath($path);
$parentNode = $this->getNodeForPath($parent);
if (!$parentNode instanceof Sabre_DAV_ICollection) return false;
return $parentNode->childExists($base);
} catch (Sabre_DAV_Exception_NotFound $e) {
return false;
}
}
/**
* Returns a list of childnodes for a given path.
*
* @param string $path
* @return array
*/
public function getChildren($path) {
$node = $this->getNodeForPath($path);
$children = $node->getChildren();
foreach($children as $child) {
$this->cache[trim($path,'/') . '/' . $child->getName()] = $child;
}
return $children;
}
/**
* This method is called with every tree update
*
* Examples of tree updates are:
* * node deletions
* * node creations
* * copy
* * move
* * renaming nodes
*
* If Tree classes implement a form of caching, this will allow
* them to make sure caches will be expired.
*
* If a path is passed, it is assumed that the entire subtree is dirty
*
* @param string $path
* @return void
*/
public function markDirty($path) {
// We don't care enough about sub-paths
// flushing the entire cache
$path = trim($path,'/');
foreach($this->cache as $nodePath=>$node) {
if ($nodePath == $path || strpos($nodePath,$path.'/')===0)
unset($this->cache[$nodePath]);
}
}
}
|
