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1 // Copyright (c) 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 #ifndef CHROME_BROWSER_PROFILE_RESETTER_PROFILE_RESETTER_H_
6 #define CHROME_BROWSER_PROFILE_RESETTER_PROFILE_RESETTER_H_
7 
8 #include <utility>
9 #include <vector>
10 
11 #include "base/basictypes.h"
12 #include "base/callback.h"
13 #include "base/files/file_path.h"
14 #include "base/memory/ref_counted.h"
15 #include "base/memory/scoped_ptr.h"
16 #include "base/memory/weak_ptr.h"
17 #include "base/strings/string16.h"
18 #include "base/threading/non_thread_safe.h"
19 #include "chrome/browser/browsing_data/browsing_data_remover.h"
20 #include "chrome/browser/profile_resetter/brandcoded_default_settings.h"
21 #include "components/search_engines/template_url_service.h"
22 
23 class Profile;
24 
25 namespace base {
26 class CancellationFlag;
27 }
28 
29 // This class allows resetting certain aspects of a profile to default values.
30 // It is used in case the profile has been damaged due to malware or bad user
31 // settings.
32 class ProfileResetter : public base::NonThreadSafe,
33                         public BrowsingDataRemover::Observer {
34  public:
35   // Flags indicating what aspects of a profile shall be reset.
36   enum Resettable {
37     DEFAULT_SEARCH_ENGINE = 1 << 0,
38     HOMEPAGE = 1 << 1,
39     CONTENT_SETTINGS = 1 << 2,
40     COOKIES_AND_SITE_DATA = 1 << 3,
41     EXTENSIONS = 1 << 4,
42     STARTUP_PAGES = 1 << 5,
43     PINNED_TABS = 1 << 6,
44     SHORTCUTS = 1 << 7,
45     // Update ALL if you add new values and check whether the type of
46     // ResettableFlags needs to be enlarged.
47     ALL = DEFAULT_SEARCH_ENGINE | HOMEPAGE | CONTENT_SETTINGS |
48           COOKIES_AND_SITE_DATA | EXTENSIONS | STARTUP_PAGES | PINNED_TABS |
49           SHORTCUTS
50   };
51 
52   // Bit vector for Resettable enum.
53   typedef uint32 ResettableFlags;
54 
55   COMPILE_ASSERT(sizeof(ResettableFlags) == sizeof(Resettable),
56                  type_ResettableFlags_doesnt_match_Resettable);
57 
58   explicit ProfileResetter(Profile* profile);
59   virtual ~ProfileResetter();
60 
61   // Resets |resettable_flags| and calls |callback| on the UI thread on
62   // completion. |default_settings| allows the caller to specify some default
63   // settings. |default_settings| shouldn't be NULL. |accepted_send_feedback|
64   // identifies whether the user accepted to send feedback or not.
65   void Reset(ResettableFlags resettable_flags,
66              scoped_ptr<BrandcodedDefaultSettings> master_settings,
67              bool accepted_send_feedback,
68              const base::Closure& callback);
69 
70   bool IsActive() const;
71 
72  private:
73   // Marks |resettable| as done and triggers |callback_| if all pending jobs
74   // have completed.
75   void MarkAsDone(Resettable resettable);
76 
77   void ResetDefaultSearchEngine();
78   void ResetHomepage();
79   void ResetContentSettings();
80   void ResetCookiesAndSiteData();
81   void ResetExtensions();
82   void ResetStartupPages();
83   void ResetPinnedTabs();
84   void ResetShortcuts();
85 
86   // BrowsingDataRemover::Observer:
87   virtual void OnBrowsingDataRemoverDone() OVERRIDE;
88 
89   // Callback for when TemplateURLService has loaded.
90   void OnTemplateURLServiceLoaded();
91 
92   Profile* const profile_;
93   scoped_ptr<BrandcodedDefaultSettings> master_settings_;
94   TemplateURLService* template_url_service_;
95 
96   // Flags of a Resetable indicating which reset operations we are still waiting
97   // for.
98   ResettableFlags pending_reset_flags_;
99 
100   // Called on UI thread when reset has been completed.
101   base::Closure callback_;
102 
103   // If non-null it means removal is in progress. BrowsingDataRemover takes care
104   // of deleting itself when done.
105   BrowsingDataRemover* cookies_remover_;
106 
107   scoped_ptr<TemplateURLService::Subscription> template_url_service_sub_;
108 
109   base::WeakPtrFactory<ProfileResetter> weak_ptr_factory_;
110 
111   DISALLOW_COPY_AND_ASSIGN(ProfileResetter);
112 };
113 
114 // Path to shortcut and command line arguments.
115 typedef std::pair<base::FilePath, base::string16> ShortcutCommand;
116 
117 typedef base::RefCountedData<base::CancellationFlag> SharedCancellationFlag;
118 
119 // On Windows returns all the shortcuts which launch Chrome and corresponding
120 // arguments. |cancel| can be passed to abort the operation earlier.
121 // Call on FILE thread.
122 std::vector<ShortcutCommand> GetChromeLaunchShortcuts(
123     const scoped_refptr<SharedCancellationFlag>& cancel);
124 
125 #endif  // CHROME_BROWSER_PROFILE_RESETTER_PROFILE_RESETTER_H_
126