Fetch incremental updates. Store new state in V4Store.

components/safe_browsing_db/v4_local_database_manager.cc

 // 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.
 
+// This file should not be build on Android but is currently getting built.
+// TODO(vakh): Fix that: http://crbug.com/621647
+
 #include "components/safe_browsing_db/v4_local_database_manager.h"
 
 #include <vector>
 
 #include "base/callback.h"
 #include "components/safe_browsing_db/safebrowsing.pb.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
@@ skipping 130 matching lines @@
   SetupUpdateProtocolManager(request_context_getter, config);
 
   SetupDatabase();
 
   enabled_ = true;
 }
 
 void V4LocalDatabaseManager::SetupUpdateProtocolManager(
     net::URLRequestContextGetter* request_context_getter,
     const V4ProtocolConfig& config) {
-#if defined(OS_WIN) || defined(OS_LINUX) || defined(OS_MACOSX)
-  // TODO(vakh): Remove this if/endif block when the V4Database is implemented.
-  // Filed as http://crbug.com/608075
-  UpdateListIdentifier update_list_identifier;
-#if defined(OS_WIN)
-  update_list_identifier.platform_type = WINDOWS_PLATFORM;
-#elif defined(OS_LINUX)
-  update_list_identifier.platform_type = LINUX_PLATFORM;
-#else
-  update_list_identifier.platform_type = OSX_PLATFORM;
-#endif
-  update_list_identifier.threat_entry_type = URL;
-  update_list_identifier.threat_type = MALWARE_THREAT;
-  current_list_states_[update_list_identifier] = "";
-#endif
-
   V4UpdateCallback callback = base::Bind(
       &V4LocalDatabaseManager::UpdateRequestCompleted, base::Unretained(this));
 
-  v4_update_protocol_manager_ = V4UpdateProtocolManager::Create(
-      request_context_getter, config, current_list_states_, callback);
+  v4_update_protocol_manager_ =
+      V4UpdateProtocolManager::Create(request_context_getter, config, callback);
 }
 
 void V4LocalDatabaseManager::SetupDatabase() {
   DCHECK(!base_path_.empty());
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   // Only get a new task runner if there isn't one already. If the service has
   // previously been started and stopped, a task runner could already exist.
   if (!task_runner_) {
     base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
     task_runner_ = pool->GetSequencedTaskRunnerWithShutdownBehavior(
         pool->GetSequenceToken(), base::SequencedWorkerPool::SKIP_ON_SHUTDOWN);
   }
 
-  // TODO(vakh): store_file_name_map should probably be a hard-coded map.
-  StoreFileNameMap store_file_name_map;
+  StoreFileNameMap store_file_name_map = CreateStoreFileNameMap();
 
   // Do not create the database on the IO thread since this may be an expensive
   // operation. Instead, do that on the task_runner and when the new database
   // has been created, swap it out on the IO thread.
+  DCHECK(!store_file_name_map.empty());
+  DatabaseUpdatedCallback db_updated_callback = base::Bind(
+      &V4LocalDatabaseManager::DatabaseUpdated, base::Unretained(this));
   NewDatabaseReadyCallback db_ready_callback = base::Bind(
       &V4LocalDatabaseManager::DatabaseReady, base::Unretained(this));
   V4Database::Create(task_runner_, base_path_, store_file_name_map,
-                     db_ready_callback);
+                     db_updated_callback, db_ready_callback);
+}
+
+StoreFileNameMap V4LocalDatabaseManager::CreateStoreFileNameMap() {
+  StoreFileNameMap store_file_name_map;
+// TODO(vakh): Implement this to populate the map appopriately.
+// Filed as http://crbug.com/608075
+#if defined(OS_WIN)
+  PlatformType platform_type = WINDOWS_PLATFORM;
+#elif defined(OS_LINUX)
+  PlatformType platform_type = LINUX_PLATFORM;
+#else
+  PlatformType platform_type = OSX_PLATFORM;
+#endif
+
+  UpdateListIdentifier malware_id(platform_type, URL, MALWARE_THREAT);
+  store_file_name_map[malware_id] = "os_url_malware.store";
+  UpdateListIdentifier soceng_id(platform_type, URL, SOCIAL_ENGINEERING_PUBLIC);
+  store_file_name_map[soceng_id] = "os_url_soceng.store";
+
+  return store_file_name_map;
 }
 
 void V4LocalDatabaseManager::DatabaseReady(
     std::unique_ptr<V4Database> v4_database) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   // The following check is needed because it is possible that by the time the
   // database is ready, StopOnIOThread has been called.
   if (enabled_) {
     v4_database_ = std::move(v4_database);
 
     // The database is in place. Start fetching updates now.
-    v4_update_protocol_manager_->ScheduleNextUpdate();
+    v4_update_protocol_manager_->ScheduleNextUpdate(
+        v4_database_->GetStoreStateMap());
   } else {
     // Schedule the deletion of v4_database off IO thread.
     V4Database::Destroy(std::move(v4_database));
   }
 }
 
 void V4LocalDatabaseManager::StopOnIOThread(bool shutdown) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   enabled_ = false;
 
   // Delete the V4Database. Any pending writes to disk are completed.
   // This operation happens on the task_runner on which v4_database_ operates
   // and doesn't block the IO thread.
   V4Database::Destroy(std::move(v4_database_));
 
   // Delete the V4UpdateProtocolManager.
   // This cancels any in-flight update request.
   v4_update_protocol_manager_.reset();
 
   SafeBrowsingDatabaseManager::StopOnIOThread(shutdown);
 }
 
 void V4LocalDatabaseManager::UpdateRequestCompleted(
     const std::vector<ListUpdateResponse>& responses) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  v4_database_->ApplyUpdate(responses);
+}
 
-  // TODO(vakh): Updates downloaded. Store them on disk and record new state.
-  v4_update_protocol_manager_->ScheduleNextUpdate();
+void V4LocalDatabaseManager::DatabaseUpdated() {
+  v4_update_protocol_manager_->ScheduleNextUpdate(
+      v4_database_->GetStoreStateMap());
 }
 
 }  // namespace safe_browsing