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
|
/*
* Copyright (C) 2007-2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "V8CustomBinding.h"
#include "CSSHelper.h"
#include "Element.h"
#include "Document.h"
#include "DOMWindow.h"
#include "History.h"
#include "HTMLNames.h"
#include "HTMLFrameElementBase.h"
#include "Location.h"
#include "V8Proxy.h"
#if ENABLE(SVG)
#include "SVGPathSeg.h"
#endif
namespace WebCore {
bool allowSettingFrameSrcToJavascriptUrl(HTMLFrameElementBase* frame, String value)
{
if (protocolIs(deprecatedParseURL(value), "javascript")) {
Node* contentDoc = frame->contentDocument();
if (contentDoc && !V8Proxy::checkNodeSecurity(contentDoc))
return false;
}
return true;
}
bool allowSettingSrcToJavascriptURL(Element* element, String name, String value)
{
if ((element->hasTagName(HTMLNames::iframeTag) || element->hasTagName(HTMLNames::frameTag)) && equalIgnoringCase(name, "src"))
return allowSettingFrameSrcToJavascriptUrl(static_cast<HTMLFrameElementBase*>(element), value);
return true;
}
// DOMImplementation is a singleton in WebCore. If we use our normal
// mapping from DOM objects to V8 wrappers, the same wrapper will be
// shared for all frames in the same process. This is a major
// security problem. Therefore, we generate a DOMImplementation
// wrapper per document and store it in an internal field of the
// document. Since the DOMImplementation object is a singleton, we do
// not have to do anything to keep the DOMImplementation object alive
// for the lifetime of the wrapper.
ACCESSOR_GETTER(DocumentImplementation)
{
ASSERT(info.Holder()->InternalFieldCount() >= kDocumentMinimumInternalFieldCount);
// Check if the internal field already contains a wrapper.
v8::Local<v8::Value> implementation = info.Holder()->GetInternalField(kDocumentImplementationIndex);
if (!implementation->IsUndefined())
return implementation;
// Generate a wrapper.
Document* document = V8DOMWrapper::convertDOMWrapperToNative<Document>(info.Holder());
v8::Handle<v8::Value> wrapper = V8DOMWrapper::convertDOMImplementationToV8Object(document->implementation());
// Store the wrapper in the internal field.
info.Holder()->SetInternalField(kDocumentImplementationIndex, wrapper);
return wrapper;
}
// --------------- Security Checks -------------------------
INDEXED_ACCESS_CHECK(History)
{
ASSERT(V8ClassIndex::FromInt(data->Int32Value()) == V8ClassIndex::HISTORY);
// Only allow same origin access.
History* history = V8DOMWrapper::convertToNativeObject<History>(V8ClassIndex::HISTORY, host);
return V8Proxy::canAccessFrame(history->frame(), false);
}
NAMED_ACCESS_CHECK(History)
{
ASSERT(V8ClassIndex::FromInt(data->Int32Value()) == V8ClassIndex::HISTORY);
// Only allow same origin access.
History* history = V8DOMWrapper::convertToNativeObject<History>(V8ClassIndex::HISTORY, host);
return V8Proxy::canAccessFrame(history->frame(), false);
}
#undef INDEXED_ACCESS_CHECK
#undef NAMED_ACCESS_CHECK
#undef NAMED_PROPERTY_GETTER
#undef NAMED_PROPERTY_SETTER
Frame* V8Custom::GetTargetFrame(v8::Local<v8::Object> host, v8::Local<v8::Value> data)
{
Frame* target = 0;
switch (V8ClassIndex::FromInt(data->Int32Value())) {
case V8ClassIndex::DOMWINDOW: {
v8::Handle<v8::Object> window = V8DOMWrapper::lookupDOMWrapper(V8ClassIndex::DOMWINDOW, host);
if (window.IsEmpty())
return target;
DOMWindow* targetWindow = V8DOMWrapper::convertToNativeObject<DOMWindow>(V8ClassIndex::DOMWINDOW, window);
target = targetWindow->frame();
break;
}
case V8ClassIndex::LOCATION: {
History* history = V8DOMWrapper::convertToNativeObject<History>(V8ClassIndex::HISTORY, host);
target = history->frame();
break;
}
case V8ClassIndex::HISTORY: {
Location* location = V8DOMWrapper::convertToNativeObject<Location>(V8ClassIndex::LOCATION, host);
target = location->frame();
break;
}
default:
break;
}
return target;
}
#if ENABLE(SVG)
V8ClassIndex::V8WrapperType V8Custom::DowncastSVGPathSeg(void* pathSeg)
{
WebCore::SVGPathSeg* realPathSeg = reinterpret_cast<WebCore::SVGPathSeg*>(pathSeg);
switch (realPathSeg->pathSegType()) {
#define MAKE_CASE(svgValue, v8Value) case WebCore::SVGPathSeg::svgValue: return V8ClassIndex::v8Value
MAKE_CASE(PATHSEG_CLOSEPATH, SVGPATHSEGCLOSEPATH);
MAKE_CASE(PATHSEG_MOVETO_ABS, SVGPATHSEGMOVETOABS);
MAKE_CASE(PATHSEG_MOVETO_REL, SVGPATHSEGMOVETOREL);
MAKE_CASE(PATHSEG_LINETO_ABS, SVGPATHSEGLINETOABS);
MAKE_CASE(PATHSEG_LINETO_REL, SVGPATHSEGLINETOREL);
MAKE_CASE(PATHSEG_CURVETO_CUBIC_ABS, SVGPATHSEGCURVETOCUBICABS);
MAKE_CASE(PATHSEG_CURVETO_CUBIC_REL, SVGPATHSEGCURVETOCUBICREL);
MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_ABS, SVGPATHSEGCURVETOQUADRATICABS);
MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_REL, SVGPATHSEGCURVETOQUADRATICREL);
MAKE_CASE(PATHSEG_ARC_ABS, SVGPATHSEGARCABS);
MAKE_CASE(PATHSEG_ARC_REL, SVGPATHSEGARCREL);
MAKE_CASE(PATHSEG_LINETO_HORIZONTAL_ABS, SVGPATHSEGLINETOHORIZONTALABS);
MAKE_CASE(PATHSEG_LINETO_HORIZONTAL_REL, SVGPATHSEGLINETOHORIZONTALREL);
MAKE_CASE(PATHSEG_LINETO_VERTICAL_ABS, SVGPATHSEGLINETOVERTICALABS);
MAKE_CASE(PATHSEG_LINETO_VERTICAL_REL, SVGPATHSEGLINETOVERTICALREL);
MAKE_CASE(PATHSEG_CURVETO_CUBIC_SMOOTH_ABS, SVGPATHSEGCURVETOCUBICSMOOTHABS);
MAKE_CASE(PATHSEG_CURVETO_CUBIC_SMOOTH_REL, SVGPATHSEGCURVETOCUBICSMOOTHREL);
MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS, SVGPATHSEGCURVETOQUADRATICSMOOTHABS);
MAKE_CASE(PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL, SVGPATHSEGCURVETOQUADRATICSMOOTHREL);
#undef MAKE_CASE
default:
return V8ClassIndex::INVALID_CLASS_INDEX;
}
}
#endif // ENABLE(SVG)
} // namespace WebCore
|
