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1 /* | |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #include "config.h" | |
32 #include "bindings/v8/BindingSecurity.h" | |
33 | |
34 #include "bindings/v8/V8Binding.h" | |
35 #include "core/dom/Document.h" | |
36 #include "core/html/HTMLFrameElementBase.h" | |
37 #include "core/frame/LocalDOMWindow.h" | |
38 #include "core/frame/LocalFrame.h" | |
39 #include "core/frame/Settings.h" | |
40 #include "platform/weborigin/SecurityOrigin.h" | |
41 | |
42 namespace WebCore { | |
43 | |
44 static bool isDocumentAccessibleFromDOMWindow(Document* targetDocument, LocalDOM
Window* callingWindow) | |
45 { | |
46 if (!targetDocument) | |
47 return false; | |
48 | |
49 if (!callingWindow) | |
50 return false; | |
51 | |
52 if (callingWindow->document()->securityOrigin()->canAccess(targetDocument->s
ecurityOrigin())) | |
53 return true; | |
54 | |
55 return false; | |
56 } | |
57 | |
58 static bool canAccessDocument(v8::Isolate* isolate, Document* targetDocument, Ex
ceptionState& exceptionState) | |
59 { | |
60 LocalDOMWindow* callingWindow = callingDOMWindow(isolate); | |
61 if (isDocumentAccessibleFromDOMWindow(targetDocument, callingWindow)) | |
62 return true; | |
63 | |
64 if (targetDocument->domWindow()) | |
65 exceptionState.throwSecurityError(targetDocument->domWindow()->sanitized
CrossDomainAccessErrorMessage(callingWindow), targetDocument->domWindow()->cross
DomainAccessErrorMessage(callingWindow)); | |
66 return false; | |
67 } | |
68 | |
69 static bool canAccessDocument(v8::Isolate* isolate, Document* targetDocument, Se
curityReportingOption reportingOption = ReportSecurityError) | |
70 { | |
71 LocalDOMWindow* callingWindow = callingDOMWindow(isolate); | |
72 if (isDocumentAccessibleFromDOMWindow(targetDocument, callingWindow)) | |
73 return true; | |
74 | |
75 if (reportingOption == ReportSecurityError && targetDocument->domWindow()) { | |
76 if (LocalFrame* frame = targetDocument->frame()) | |
77 frame->domWindow()->printErrorMessage(targetDocument->domWindow()->c
rossDomainAccessErrorMessage(callingWindow)); | |
78 } | |
79 | |
80 return false; | |
81 } | |
82 | |
83 bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* targ
et, SecurityReportingOption reportingOption) | |
84 { | |
85 if (!target || !target->isLocalFrame()) | |
86 return false; | |
87 return canAccessDocument(isolate, toLocalFrame(target)->document(), reportin
gOption); | |
88 } | |
89 | |
90 bool BindingSecurity::shouldAllowAccessToFrame(v8::Isolate* isolate, Frame* targ
et, ExceptionState& exceptionState) | |
91 { | |
92 if (!target || !target->isLocalFrame()) | |
93 return false; | |
94 return canAccessDocument(isolate, toLocalFrame(target)->document(), exceptio
nState); | |
95 } | |
96 | |
97 bool BindingSecurity::shouldAllowAccessToNode(v8::Isolate* isolate, Node* target
, ExceptionState& exceptionState) | |
98 { | |
99 return target && canAccessDocument(isolate, &target->document(), exceptionSt
ate); | |
100 } | |
101 | |
102 } | |
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