Certificate Transparency: Start tracking logs' state

chrome/browser/component_updater/sth_set_component_installer.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_COMPONENT_UPDATER_EV_WHITELIST_COMPONENT_INSTALLER_H_
-#define CHROME_BROWSER_COMPONENT_UPDATER_EV_WHITELIST_COMPONENT_INSTALLER_H_
+#ifndef CHROME_BROWSER_COMPONENT_UPDATER_STH_SET_COMPONENT_INSTALLER_H_
+#define CHROME_BROWSER_COMPONENT_UPDATER_STH_SET_COMPONENT_INSTALLER_H_
 
 #include <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "components/component_updater/default_component_installer.h"
+#include "net/cert/sth_distributor.h"
 
 namespace base {
 class FilePath;
+class Value;
 }  // namespace base
 
 namespace component_updater {
 
 class ComponentUpdateService;
 
-class EVWhitelistComponentInstallerTraits : public ComponentInstallerTraits {
+class STHSetComponentInstallerTraits : public ComponentInstallerTraits {
  public:
-  EVWhitelistComponentInstallerTraits() {}
-  ~EVWhitelistComponentInstallerTraits() override {}
+  STHSetComponentInstallerTraits(
+      scoped_ptr<net::ct::STHDistributor> sth_distributor);
+  ~STHSetComponentInstallerTraits() override;
 
  private:
   // The following methods override ComponentInstallerTraits.
   bool CanAutoUpdate() const override;
   bool OnCustomInstall(const base::DictionaryValue& manifest,
                        const base::FilePath& install_dir) override;
   bool VerifyInstallation(const base::DictionaryValue& manifest,
                           const base::FilePath& install_dir) const override;
   void ComponentReady(const base::Version& version,
                       const base::FilePath& install_dir,
                       scoped_ptr<base::DictionaryValue> manifest) override;
   base::FilePath GetBaseDirectory() const override;
   void GetHash(std::vector<uint8_t>* hash) const override;
   std::string GetName() const override;
 
   static base::FilePath GetInstalledPath(const base::FilePath& base);
 
-  DISALLOW_COPY_AND_ASSIGN(EVWhitelistComponentInstallerTraits);
+  // Reads and parses the on-disk json.
+  void LoadSTHsFromDisk(const base::FilePath& sths_file_path,
+                        const base::Version& version);
+
+  // Handle successful parsing of JSON by distributing the new STH.
+  void OnJsonParseSuccess(scoped_ptr<base::Value> parsed_json);
+
+  // STH parsing failed - do nothing.
+  void OnJsonParseError(const std::string& error);
+
+  scoped_ptr<net::ct::STHDistributor> sth_distributor_;
+
+  DISALLOW_COPY_AND_ASSIGN(STHSetComponentInstallerTraits);
 };
 
-// Call once during startup to make the component update service aware of
-// the EV whitelist.
-void RegisterEVWhitelistComponent(ComponentUpdateService* cus,
-                                  const base::FilePath& user_data_dir);
+void RegisterSTHSetComponent(
+    ComponentUpdateService* cus,
+    const base::FilePath& user_data_dir,
+    scoped_ptr<net::ct::STHDistributor> sth_distributor);
 
 }  // namespace component_updater
 
-#endif  // CHROME_BROWSER_COMPONENT_UPDATER_EV_WHITELIST_COMPONENT_INSTALLER_H_
+#endif  // CHROME_BROWSER_COMPONENT_UPDATER_STH_SET_COMPONENT_INSTALLER_H_