PVer4: Re-use the PVer3 implementation to get full hashes

components/safe_browsing_db/v4_local_database_manager.h

 // 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 COMPONENTS_SAFE_BROWSING_DB_V4_LOCAL_DATABASE_MANAGER_H_
 #define COMPONENTS_SAFE_BROWSING_DB_V4_LOCAL_DATABASE_MANAGER_H_
 
 // A class that provides the interface between the SafeBrowsing protocol manager
 // and database that holds the downloaded updates.
 
 #include <memory>
 
+#include "base/sequenced_task_runner.h"
 #include "components/safe_browsing_db/database_manager.h"
 #include "components/safe_browsing_db/hit_report.h"
 #include "components/safe_browsing_db/v4_database.h"
 #include "components/safe_browsing_db/v4_protocol_manager_util.h"
-#include "components/safe_browsing_db/v4_update_protocol_manager.h"
 #include "url/gurl.h"
 
 using content::ResourceType;
 
 namespace safe_browsing {
 
+class V4GetHashProtocolManager;
+class V4UpdateProtocolManager;
+
 // Manages the local, on-disk database of updates downloaded from the
 // SafeBrowsing service and interfaces with the protocol manager.
 class V4LocalDatabaseManager : public SafeBrowsingDatabaseManager {
  public:
   // Construct V4LocalDatabaseManager.
   // Must be initialized by calling StartOnIOThread() before using.
   V4LocalDatabaseManager(const base::FilePath& base_path);
 
   //
   // SafeBrowsingDatabaseManager implementation
@@ skipping 25 matching lines @@
 
  private:
   friend class V4LocalDatabaseManagerTest;
   void SetTaskRunnerForTest(
       const scoped_refptr<base::SequencedTaskRunner>& task_runner) {
     task_runner_ = task_runner;
   }
 
   ~V4LocalDatabaseManager() override;
 
+  // Called back by V4GetHashProtocolManager when the full hashes response has
+  // been received from the server.
+  void HandleGetHashes(const std::vector<SBFullHashResult>& full_hash_results,
+                       const base::Time& negative_cache_expire);
+
   // The callback called each time the protocol manager downloads updates
   // successfully.
   void UpdateRequestCompleted(
       std::unique_ptr<ParsedServerResponse> parsed_server_response);
 
+  void SetupGetHashProtocolManager(
+      net::URLRequestContextGetter* request_context_getter,
+      const V4ProtocolConfig& config);
+
   void SetupUpdateProtocolManager(
       net::URLRequestContextGetter* request_context_getter,
       const V4ProtocolConfig& config);
 
   void SetupDatabase();
 
   void DatabaseReady(std::unique_ptr<V4Database> v4_database);
 
   // Called when the database has been updated and schedules the next update.
   void DatabaseUpdated();
 
   // The base directory under which to create the files that contain hashes.
   const base::FilePath base_path_;
 
   // Whether the service is running.
   bool enabled_;
 
   // Stores the current status of the lists to download from the SafeBrowsing
   // servers.
   // TODO(vakh): current_list_states_ doesn't really belong here.
   // It should come through the database, from the various V4Stores.
   base::hash_map<UpdateListIdentifier, std::string> current_list_states_;
 
+  // The protocol manager that downloads the full hashes for given hash
+  // prefixes.
+  std::unique_ptr<V4GetHashProtocolManager> v4_get_hash_protocol_manager_;
+
   // The protocol manager that downloads the hash prefix updates.
   std::unique_ptr<V4UpdateProtocolManager> v4_update_protocol_manager_;
 
   // The database that manages the stores containing the hash prefix updates.
   // All writes to this variable must happen on the IO thread only.
   std::unique_ptr<V4Database> v4_database_;
 
   // Called when the V4Database has finished applying the latest update and is
   // ready to process next update.
   DatabaseUpdatedCallback db_updated_callback_;
 
   // The sequenced task runner for running safe browsing database operations.
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
 
   friend class base::RefCountedThreadSafe<V4LocalDatabaseManager>;
   DISALLOW_COPY_AND_ASSIGN(V4LocalDatabaseManager);
 };  // class V4LocalDatabaseManager
 
 }  // namespace safe_browsing
 
 #endif  // COMPONENTS_SAFE_BROWSING_DB_V4_LOCAL_DATABASE_MANAGER_H_