|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* Defines common attribute collections that modules reference |
|
5
|
|
|
*/ |
|
6
|
|
|
|
|
7
|
|
|
class HTMLPurifier_AttrCollections |
|
8
|
|
|
{ |
|
9
|
|
|
|
|
10
|
|
|
/** |
|
11
|
|
|
* Associative array of attribute collections, indexed by name. |
|
12
|
|
|
* @type array |
|
13
|
|
|
*/ |
|
14
|
|
|
public $info = array(); |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* Performs all expansions on internal data for use by other inclusions |
|
18
|
|
|
* It also collects all attribute collection extensions from |
|
19
|
|
|
* modules |
|
20
|
|
|
* @param HTMLPurifier_AttrTypes $attr_types HTMLPurifier_AttrTypes instance |
|
21
|
|
|
* @param HTMLPurifier_HTMLModule[] $modules Hash array of HTMLPurifier_HTMLModule members |
|
22
|
|
|
*/ |
|
23
|
|
|
public function __construct($attr_types, $modules) |
|
24
|
|
|
{ |
|
25
|
|
|
$this->doConstruct($attr_types, $modules); |
|
26
|
|
|
} |
|
27
|
|
|
|
|
28
|
|
|
public function doConstruct($attr_types, $modules) |
|
29
|
|
|
{ |
|
30
|
|
|
// load extensions from the modules |
|
31
|
|
|
foreach ($modules as $module) { |
|
32
|
|
|
foreach ($module->attr_collections as $coll_i => $coll) { |
|
33
|
|
|
if (!isset($this->info[$coll_i])) { |
|
34
|
|
|
$this->info[$coll_i] = array(); |
|
35
|
|
|
} |
|
36
|
|
|
foreach ($coll as $attr_i => $attr) { |
|
37
|
|
|
if ($attr_i === 0 && isset($this->info[$coll_i][$attr_i])) { |
|
38
|
|
|
// merge in includes |
|
39
|
|
|
$this->info[$coll_i][$attr_i] = array_merge( |
|
40
|
|
|
$this->info[$coll_i][$attr_i], |
|
41
|
|
|
$attr |
|
42
|
|
|
); |
|
43
|
|
|
continue; |
|
44
|
|
|
} |
|
45
|
|
|
$this->info[$coll_i][$attr_i] = $attr; |
|
46
|
|
|
} |
|
47
|
|
|
} |
|
48
|
|
|
} |
|
49
|
|
|
// perform internal expansions and inclusions |
|
50
|
|
|
foreach ($this->info as $name => $attr) { |
|
51
|
|
|
// merge attribute collections that include others |
|
52
|
|
|
$this->performInclusions($this->info[$name]); |
|
53
|
|
|
// replace string identifiers with actual attribute objects |
|
54
|
|
|
$this->expandIdentifiers($this->info[$name], $attr_types); |
|
55
|
|
|
} |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
|
|
/** |
|
59
|
|
|
* Takes a reference to an attribute associative array and performs |
|
60
|
|
|
* all inclusions specified by the zero index. |
|
61
|
|
|
* @param array &$attr Reference to attribute array |
|
62
|
|
|
*/ |
|
63
|
|
|
public function performInclusions(&$attr) |
|
64
|
|
|
{ |
|
65
|
|
|
if (!isset($attr[0])) { |
|
66
|
|
|
return; |
|
67
|
|
|
} |
|
68
|
|
|
$merge = $attr[0]; |
|
69
|
|
|
$seen = array(); // recursion guard |
|
70
|
|
|
// loop through all the inclusions |
|
71
|
|
|
for ($i = 0; isset($merge[$i]); $i++) { |
|
72
|
|
|
if (isset($seen[$merge[$i]])) { |
|
73
|
|
|
continue; |
|
74
|
|
|
} |
|
75
|
|
|
$seen[$merge[$i]] = true; |
|
76
|
|
|
// foreach attribute of the inclusion, copy it over |
|
77
|
|
|
if (!isset($this->info[$merge[$i]])) { |
|
78
|
|
|
continue; |
|
79
|
|
|
} |
|
80
|
|
|
foreach ($this->info[$merge[$i]] as $key => $value) { |
|
81
|
|
|
if (isset($attr[$key])) { |
|
82
|
|
|
continue; |
|
83
|
|
|
} // also catches more inclusions |
|
84
|
|
|
$attr[$key] = $value; |
|
85
|
|
|
} |
|
86
|
|
|
if (isset($this->info[$merge[$i]][0])) { |
|
87
|
|
|
// recursion |
|
88
|
|
|
$merge = array_merge($merge, $this->info[$merge[$i]][0]); |
|
89
|
|
|
} |
|
90
|
|
|
} |
|
91
|
|
|
unset($attr[0]); |
|
92
|
|
|
} |
|
93
|
|
|
|
|
94
|
|
|
/** |
|
95
|
|
|
* Expands all string identifiers in an attribute array by replacing |
|
96
|
|
|
* them with the appropriate values inside HTMLPurifier_AttrTypes |
|
97
|
|
|
* @param array &$attr Reference to attribute array |
|
98
|
|
|
* @param HTMLPurifier_AttrTypes $attr_types HTMLPurifier_AttrTypes instance |
|
99
|
|
|
*/ |
|
100
|
|
|
public function expandIdentifiers(&$attr, $attr_types) |
|
101
|
|
|
{ |
|
102
|
|
|
// because foreach will process new elements we add, make sure we |
|
103
|
|
|
// skip duplicates |
|
104
|
|
|
$processed = array(); |
|
105
|
|
|
|
|
106
|
|
|
foreach ($attr as $def_i => $def) { |
|
107
|
|
|
// skip inclusions |
|
108
|
|
|
if ($def_i === 0) { |
|
109
|
|
|
continue; |
|
110
|
|
|
} |
|
111
|
|
|
|
|
112
|
|
|
if (isset($processed[$def_i])) { |
|
113
|
|
|
continue; |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
|
|
// determine whether or not attribute is required |
|
117
|
|
|
if ($required = (strpos($def_i, '*') !== false)) { |
|
118
|
|
|
// rename the definition |
|
119
|
|
|
unset($attr[$def_i]); |
|
120
|
|
|
$def_i = trim($def_i, '*'); |
|
121
|
|
|
$attr[$def_i] = $def; |
|
122
|
|
|
} |
|
123
|
|
|
|
|
124
|
|
|
$processed[$def_i] = true; |
|
125
|
|
|
|
|
126
|
|
|
// if we've already got a literal object, move on |
|
127
|
|
|
if (is_object($def)) { |
|
128
|
|
|
// preserve previous required |
|
129
|
|
|
$attr[$def_i]->required = ($required || $attr[$def_i]->required); |
|
130
|
|
|
continue; |
|
131
|
|
|
} |
|
132
|
|
|
|
|
133
|
|
|
if ($def === false) { |
|
134
|
|
|
unset($attr[$def_i]); |
|
135
|
|
|
continue; |
|
136
|
|
|
} |
|
137
|
|
|
|
|
138
|
|
|
if ($t = $attr_types->get($def)) { |
|
139
|
|
|
$attr[$def_i] = $t; |
|
140
|
|
|
$attr[$def_i]->required = $required; |
|
141
|
|
|
} else { |
|
142
|
|
|
unset($attr[$def_i]); |
|
143
|
|
|
} |
|
144
|
|
|
} |
|
145
|
|
|
} |
|
146
|
|
|
} |
|
147
|
|
|
|
|
148
|
|
|
// vim: et sw=4 sts=4 |
|
149
|
|
|
|
XOOPS /
XoopsCore25
