1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chrome/browser/extensions/api/messaging/incognito_connectability.h"
6
7 #include "base/lazy_instance.h"
8 #include "base/logging.h"
9 #include "base/strings/string16.h"
10 #include "base/strings/utf_string_conversions.h"
11 #include "chrome/browser/profiles/profile.h"
12 #include "chrome/browser/ui/simple_message_box.h"
13 #include "content/public/browser/web_contents.h"
14 #include "extensions/common/extension.h"
15 #include "grit/generated_resources.h"
16 #include "ui/base/l10n/l10n_util.h"
17
18 namespace extensions {
19
20 namespace {
21 IncognitoConnectability::ScopedAlertTracker::Mode g_alert_mode =
22 IncognitoConnectability::ScopedAlertTracker::INTERACTIVE;
23 int g_alert_count = 0;
24 }
25
ScopedAlertTracker(Mode mode)26 IncognitoConnectability::ScopedAlertTracker::ScopedAlertTracker(Mode mode)
27 : last_checked_invocation_count_(g_alert_count) {
28 DCHECK_EQ(INTERACTIVE, g_alert_mode);
29 DCHECK_NE(INTERACTIVE, mode);
30 g_alert_mode = mode;
31 }
32
~ScopedAlertTracker()33 IncognitoConnectability::ScopedAlertTracker::~ScopedAlertTracker() {
34 DCHECK_NE(INTERACTIVE, g_alert_mode);
35 g_alert_mode = INTERACTIVE;
36 }
37
GetAndResetAlertCount()38 int IncognitoConnectability::ScopedAlertTracker::GetAndResetAlertCount() {
39 int result = g_alert_count - last_checked_invocation_count_;
40 last_checked_invocation_count_ = g_alert_count;
41 return result;
42 }
43
IncognitoConnectability(content::BrowserContext * context)44 IncognitoConnectability::IncognitoConnectability(
45 content::BrowserContext* context) {
46 CHECK(context->IsOffTheRecord());
47 }
48
~IncognitoConnectability()49 IncognitoConnectability::~IncognitoConnectability() {
50 }
51
52 // static
Get(content::BrowserContext * context)53 IncognitoConnectability* IncognitoConnectability::Get(
54 content::BrowserContext* context) {
55 return BrowserContextKeyedAPIFactory<IncognitoConnectability>::Get(context);
56 }
57
Query(const Extension * extension,content::WebContents * web_contents,const GURL & url)58 bool IncognitoConnectability::Query(const Extension* extension,
59 content::WebContents* web_contents,
60 const GURL& url) {
61 GURL origin = url.GetOrigin();
62 if (origin.is_empty())
63 return false;
64
65 if (IsInMap(extension, origin, allowed_origins_))
66 return true;
67 if (IsInMap(extension, origin, disallowed_origins_))
68 return false;
69
70 // We need to ask the user.
71 ++g_alert_count;
72 chrome::MessageBoxResult result = chrome::MESSAGE_BOX_RESULT_NO;
73
74 switch (g_alert_mode) {
75 // Production code should always be using INTERACTIVE.
76 case ScopedAlertTracker::INTERACTIVE: {
77 int template_id = extension->is_app() ?
78 IDS_EXTENSION_PROMPT_APP_CONNECT_FROM_INCOGNITO :
79 IDS_EXTENSION_PROMPT_EXTENSION_CONNECT_FROM_INCOGNITO;
80 result = chrome::ShowMessageBox(
81 web_contents ? web_contents->GetTopLevelNativeWindow() : NULL,
82 base::string16(), // no title
83 l10n_util::GetStringFUTF16(template_id,
84 base::UTF8ToUTF16(origin.spec()),
85 base::UTF8ToUTF16(extension->name())),
86 chrome::MESSAGE_BOX_TYPE_QUESTION);
87 break;
88 }
89
90 // Testing code can override to always allow or deny.
91 case ScopedAlertTracker::ALWAYS_ALLOW:
92 result = chrome::MESSAGE_BOX_RESULT_YES;
93 break;
94 case ScopedAlertTracker::ALWAYS_DENY:
95 result = chrome::MESSAGE_BOX_RESULT_NO;
96 break;
97 }
98
99 if (result == chrome::MESSAGE_BOX_RESULT_NO) {
100 disallowed_origins_[extension->id()].insert(origin);
101 return false;
102 }
103 allowed_origins_[extension->id()].insert(origin);
104 return true;
105 }
106
IsInMap(const Extension * extension,const GURL & origin,const ExtensionToOriginsMap & map)107 bool IncognitoConnectability::IsInMap(const Extension* extension,
108 const GURL& origin,
109 const ExtensionToOriginsMap& map) {
110 DCHECK_EQ(origin, origin.GetOrigin());
111 ExtensionToOriginsMap::const_iterator it = map.find(extension->id());
112 return it != map.end() && it->second.count(origin) > 0;
113 }
114
115 static base::LazyInstance<
116 BrowserContextKeyedAPIFactory<IncognitoConnectability> > g_factory =
117 LAZY_INSTANCE_INITIALIZER;
118
119 // static
120 BrowserContextKeyedAPIFactory<IncognitoConnectability>*
GetFactoryInstance()121 IncognitoConnectability::GetFactoryInstance() {
122 return g_factory.Pointer();
123 }
124
125 } // namespace extensions
126