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
|
/**
* GNU LibreJS - A browser add-on to block nonfree nontrivial JavaScript.
* *
* Copyright (C) 2011, 2012, 2013, 2014 Loic J. Duros
* Copyright (C) 2014, 2015 Nik Nyby
*
* This file is part of GNU LibreJS.
*
* GNU LibreJS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GNU LibreJS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU LibreJS. If not, see <http://www.gnu.org/licenses/>.
*/
// object model for script entries.
var scriptObject = require("./script_object");
var scriptProperties = require("./script_properties");
const scriptTypes = scriptProperties.scriptTypes;
const statusTypes = scriptProperties.statusTypes;
var jsInAttrRe = /javascript:/ig;
// the list of all available event attributes
var intrinsicEvents = [
"onload",
"onunload",
"onclick",
"ondblclick",
"onmousedown",
"onmouseup",
"onmouseover",
"onmousemove",
"onmouseout",
"onfocus",
"onblur",
"onkeypress",
"onkeydown",
"onkeyup",
"onsubmit",
"onreset",
"onselect",
"onchange"];
exports.jsInAttrRe = jsInAttrRe;
exports.intrinsicEvents = intrinsicEvents;
/**
* findJSinAttribute
*
* Looks for attributes containing 'javascript:'
*
*/
exports.findJSinAttribute = function (elem, callback) {
var i = 0, attrLen = elem.attributes.length;
var attribPairs = [];
for (; i < attrLen; i++) {
//looping through all attributes in elem to look for "javascript:"
attrib = elem.attributes[i];
if (attrib.value.match(jsInAttrRe)) {
str = attrib.value.replace(jsInAttrRe, '');
attribPairs.push({attribute: attrib.name, value: str});
}
}
if (attribPairs.length > 0) {
// contains in attribute javascript.
scriptEntry = scriptObject.Script({'type': scriptTypes.ATTRIBUTE,
'status': statusTypes.UNCHECKED,
'element': elem,
'jsAttributes': attribPairs
});
// push back to DOMHandler
callback(scriptEntry);
} else {
callback(false);
}
};
/**
* findOnJSAttribute.
*
* Look for attributes in on*
*
*/
exports.findOnJSAttribute = function (elem, callback) {
var i = 0, eventsLen = intrinsicEvents.length;
var attribPairs = [];
for (; i < eventsLen; i++) {
// looping through all on* attributes
if (elem.hasAttribute(intrinsicEvents[i])) {
attribPairs.push({
attribute: intrinsicEvents[i],
value: elem.getAttribute(intrinsicEvents[i])
});
}
}
if (attribPairs.length > 0) {
console.debug('found an attribute', scriptTypes.ATTRIBUTE);
scriptEntry = scriptObject.Script({'type': scriptTypes.ATTRIBUTE,
'status': statusTypes.UNCHECKED,
'element':elem,
'jsAttributes': attribPairs
});
// Push back to DOMHandler.
// push back to DOMHandler
callback(scriptEntry);
} else {
callback(false);
}
};
|
