chrome/browser/net/crl_set_fetcher.h

   1 // Copyright (c) 2012 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_NET_CRL_SET_FETCHER_H_
   6 #define CHROME_BROWSER_NET_CRL_SET_FETCHER_H_
   7
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/files/file_path.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "components/update_client/update_client.h"
  14
  15 namespace base {
  16 class DictionaryValue;
  17 class FilePath;
  18 }
  19
  20 namespace net {
  21 class CRLSet;
  22 }
  23
  24 namespace component_updater {
  25 class ComponentUpdateService;
  26 }
  27
  28 class CRLSetFetcher : public update_client::CrxInstaller {
  29  public:
  30   CRLSetFetcher();
  31
  32   void StartInitialLoad(component_updater::ComponentUpdateService* cus,
  33                         const base::FilePath& path);
  34
  35   // DeleteFromDisk asynchronously delete the CRLSet file.
  36   void DeleteFromDisk(const base::FilePath& path);
  37
  38   // ComponentInstaller interface
  39   void OnUpdateError(int error) override;
  40   bool Install(const base::DictionaryValue& manifest,
  41                const base::FilePath& unpack_path) override;
  42   bool GetInstalledFile(const std::string& file,
  43                         base::FilePath* installed_file) override;
  44   bool Uninstall() override;
  45
  46  private:
  47   friend class base::RefCountedThreadSafe<CRLSetFetcher>;
  48
  49   ~CRLSetFetcher() override;
  50
  51   // GetCRLSetbase::FilePath gets the path of the CRL set file in the user data
  52   // dir.
  53   base::FilePath GetCRLSetFilePath() const;
  54
  55   // Sets the path of the CRL set file in the user data dir.
  56   void SetCRLSetFilePath(const base::FilePath& path);
  57
  58   // DoInitialLoadFromDisk runs on the FILE thread and attempts to load a CRL
  59   // set from the user-data dir. It then registers this object as a component
  60   // in order to get updates.
  61   void DoInitialLoadFromDisk();
  62
  63   // LoadFromDisk runs on the FILE thread and attempts to load a CRL set
  64   // from |load_from|.
  65   void LoadFromDisk(base::FilePath load_from,
  66                     scoped_refptr<net::CRLSet>* out_crl_set);
  67
  68   // SetCRLSetIfNewer runs on the IO thread and installs a CRL set
  69   // as the global CRL set if it's newer than the existing one.
  70   void SetCRLSetIfNewer(scoped_refptr<net::CRLSet> crl_set);
  71
  72   // RegisterComponent registers this object as a component updater.
  73   void RegisterComponent(uint32 sequence_of_loaded_crl);
  74
  75   // DoDeleteFromDisk runs on the FILE thread and removes the CRLSet file from
  76   // the disk.
  77   void DoDeleteFromDisk();
  78
  79   component_updater::ComponentUpdateService* cus_;
  80
  81   // Path where the CRL file is stored.
  82   base::FilePath crl_path_;
  83
  84   // We keep a pointer to the current CRLSet for use on the FILE thread when
  85   // applying delta updates.
  86   scoped_refptr<net::CRLSet> crl_set_;
  87
  88   DISALLOW_COPY_AND_ASSIGN(CRLSetFetcher);
  89 };
  90
  91 #endif  // CHROME_BROWSER_NET_CRL_SET_FETCHER_H_