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/memory/ref_counted.h"
  12 #include "chrome/browser/component_updater/component_updater_service.h"
  13
  14 namespace base {
  15 class DictionaryValue;
  16 class FilePath;
  17 }
  18
  19 namespace net {
  20 class CRLSet;
  21 }
  22
  23 class CRLSetFetcher : public component_updater::ComponentInstaller,
  24                       public base::RefCountedThreadSafe<CRLSetFetcher> {
  25  public:
  26   CRLSetFetcher();
  27
  28   void StartInitialLoad(component_updater::ComponentUpdateService* cus);
  29
  30   // ComponentInstaller interface
  31   virtual void OnUpdateError(int error) OVERRIDE;
  32   virtual bool Install(const base::DictionaryValue& manifest,
  33                        const base::FilePath& unpack_path) OVERRIDE;
  34   virtual bool GetInstalledFile(const std::string& file,
  35                                 base::FilePath* installed_file) OVERRIDE;
  36
  37  private:
  38   friend class base::RefCountedThreadSafe<CRLSetFetcher>;
  39
  40   virtual ~CRLSetFetcher();
  41
  42   // GetCRLSetbase::FilePath gets the path of the CRL set file in the user data
  43   // dir.
  44   bool GetCRLSetFilePath(base::FilePath* path) const;
  45
  46   // DoInitialLoadFromDisk runs on the FILE thread and attempts to load a CRL
  47   // set from the user-data dir. It then registers this object as a component
  48   // in order to get updates.
  49   void DoInitialLoadFromDisk();
  50
  51   // LoadFromDisk runs on the FILE thread and attempts to load a CRL set
  52   // from |load_from|.
  53   void LoadFromDisk(base::FilePath load_from,
  54                     scoped_refptr<net::CRLSet>* out_crl_set);
  55
  56   // SetCRLSetIfNewer runs on the IO thread and installs a CRL set
  57   // as the global CRL set if it's newer than the existing one.
  58   void SetCRLSetIfNewer(scoped_refptr<net::CRLSet> crl_set);
  59
  60   // RegisterComponent registers this object as a component updater.
  61   void RegisterComponent(uint32 sequence_of_loaded_crl);
  62
  63   component_updater::ComponentUpdateService* cus_;
  64
  65   // We keep a pointer to the current CRLSet for use on the FILE thread when
  66   // applying delta updates.
  67   scoped_refptr<net::CRLSet> crl_set_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(CRLSetFetcher);
  70 };
  71
  72 #endif  // CHROME_BROWSER_NET_CRL_SET_FETCHER_H_