pnacl_component_installer.h revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7 
1// Copyright (c) 2011 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_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
6#define CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
7
8#include <list>
9
10#include "base/callback.h"
11#include "base/compiler_specific.h"
12#include "base/files/file_path.h"
13#include "base/memory/scoped_ptr.h"
14#include "base/version.h"
15#include "chrome/browser/component_updater/component_updater_service.h"
16#include "chrome/browser/component_updater/pnacl/pnacl_profile_observer.h"
17
18class CommandLine;
19
20namespace base {
21class DictionaryValue;
22}
23
24namespace pnacl {
25// Returns true if PNaCl actually needs an on-demand component update.
26// E.g., if PNaCl is not yet installed and the user is loading a PNaCl app,
27// or the current version is behind chrome's version, and is ABI incompatible
28// with chrome. If not necessary, returns false.
29// May conservatively return false before PNaCl is registered, but
30// should return the right answer after it is registered.
31bool NeedsOnDemandUpdate();
32}
33
34// Component installer responsible for Portable Native Client files.
35// Files can be installed to a shared location, or be installed to
36// a per-user location.
37class PnaclComponentInstaller : public ComponentInstaller {
38 public:
39  PnaclComponentInstaller();
40
41  virtual ~PnaclComponentInstaller();
42
43  virtual void OnUpdateError(int error) OVERRIDE;
44
45  virtual bool Install(const base::DictionaryValue& manifest,
46                       const base::FilePath& unpack_path) OVERRIDE;
47
48  virtual bool GetInstalledFile(const std::string& file,
49                                base::FilePath* installed_file) OVERRIDE;
50
51  // Register a PNaCl component for the first time.
52  void RegisterPnaclComponent(ComponentUpdateService* cus,
53                              const CommandLine& command_line);
54
55  // Check the PNaCl version again and re-register with the component
56  // updater service.
57  void ReRegisterPnacl();
58
59  CrxComponent GetCrxComponent();
60
61  // Return true if PNaCl installs are separated by user.
62  bool per_user() const { return per_user_; }
63
64  // If per_user, function to call when profile is changed.
65  void OnProfileChange();
66
67  // Return true if PNaCl updates are disabled.
68  bool updates_disabled() const { return updates_disabled_; }
69
70  // Determine the base directory for storing each version of PNaCl.
71  base::FilePath GetPnaclBaseDirectory();
72
73  base::Version current_version() const { return current_version_; }
74
75  void set_current_version(const base::Version& current_version) {
76    current_version_ = current_version;
77  }
78
79  std::string current_fingerprint() const { return current_fingerprint_; }
80
81  void set_current_fingerprint(const std::string& current_fingerprint) {
82    current_fingerprint_ = current_fingerprint;
83  }
84
85  ComponentUpdateService* cus() const { return cus_; }
86
87 private:
88  bool per_user_;
89  bool updates_disabled_;
90  scoped_ptr<PnaclProfileObserver> profile_observer_;
91  base::FilePath current_profile_path_;
92  base::Version current_version_;
93  std::string current_fingerprint_;
94  ComponentUpdateService* cus_;
95  DISALLOW_COPY_AND_ASSIGN(PnaclComponentInstaller);
96};
97
98#endif  // CHROME_BROWSER_COMPONENT_UPDATER_PNACL_PNACL_COMPONENT_INSTALLER_H_
99