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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsWebBrowserContentPolicy.h"
#include "nsIDocShell.h"
#include "nsCOMPtr.h"
#include "nsContentPolicyUtils.h"
#include "nsIContentViewer.h"
nsWebBrowserContentPolicy::nsWebBrowserContentPolicy() {}
nsWebBrowserContentPolicy::~nsWebBrowserContentPolicy() {}
NS_IMPL_ISUPPORTS(nsWebBrowserContentPolicy, nsIContentPolicy)
NS_IMETHODIMP
nsWebBrowserContentPolicy::ShouldLoad(
uint32_t aContentType, nsIURI* aContentLocation,
nsIURI* aRequestingLocation, nsISupports* aRequestingContext,
const nsACString& aMimeGuess, nsISupports* aExtra,
nsIPrincipal* aRequestPrincipal, int16_t* aShouldLoad) {
NS_PRECONDITION(aShouldLoad, "Null out param");
MOZ_ASSERT(
aContentType ==
nsContentUtils::InternalContentPolicyTypeToExternal(aContentType),
"We should only see external content policy types here.");
*aShouldLoad = nsIContentPolicy::ACCEPT;
nsIDocShell* shell = NS_CP_GetDocShellFromContext(aRequestingContext);
/* We're going to dereference shell, so make sure it isn't null */
if (!shell) {
return NS_OK;
}
nsresult rv;
bool allowed = true;
switch (aContentType) {
case nsIContentPolicy::TYPE_SCRIPT:
rv = shell->GetAllowJavascript(&allowed);
break;
case nsIContentPolicy::TYPE_SUBDOCUMENT:
rv = shell->GetAllowSubframes(&allowed);
break;
#if 0
/* XXXtw: commented out in old code; add during conpol phase 2 */
case nsIContentPolicy::TYPE_REFRESH:
rv = shell->GetAllowMetaRedirects(&allowed); /* meta _refresh_ */
break;
#endif
case nsIContentPolicy::TYPE_IMAGE:
case nsIContentPolicy::TYPE_IMAGESET:
rv = shell->GetAllowImages(&allowed);
break;
default:
return NS_OK;
}
if (NS_SUCCEEDED(rv) && !allowed) {
*aShouldLoad = nsIContentPolicy::REJECT_TYPE;
}
return rv;
}
NS_IMETHODIMP
nsWebBrowserContentPolicy::ShouldProcess(
uint32_t aContentType, nsIURI* aContentLocation,
nsIURI* aRequestingLocation, nsISupports* aRequestingContext,
const nsACString& aMimeGuess, nsISupports* aExtra,
nsIPrincipal* aRequestPrincipal, int16_t* aShouldProcess) {
NS_PRECONDITION(aShouldProcess, "Null out param");
MOZ_ASSERT(
aContentType ==
nsContentUtils::InternalContentPolicyTypeToExternal(aContentType),
"We should only see external content policy types here.");
*aShouldProcess = nsIContentPolicy::ACCEPT;
// Object tags will always open channels with TYPE_OBJECT, but may end up
// loading with TYPE_IMAGE or TYPE_DOCUMENT as their final type, so we block
// actual-plugins at the process stage
if (aContentType != nsIContentPolicy::TYPE_OBJECT) {
return NS_OK;
}
nsIDocShell* shell = NS_CP_GetDocShellFromContext(aRequestingContext);
if (shell && (!shell->PluginsAllowedInCurrentDoc())) {
*aShouldProcess = nsIContentPolicy::REJECT_TYPE;
}
return NS_OK;
}
|
