| // Copyright (c) 2012 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 CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_DISPATCHER_HOST_H_ |
| #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_DISPATCHER_HOST_H_ |
| |
| #include <map> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/id_map.h" |
| #include "base/memory/ref_counted.h" |
| #include "content/browser/fileapi/chrome_blob_storage_context.h" |
| #include "content/public/browser/browser_message_filter.h" |
| #include "net/url_request/url_request_context_getter.h" |
| #include "storage/browser/blob/blob_data_handle.h" |
| #include "url/gurl.h" |
| |
| struct IndexedDBDatabaseMetadata; |
| struct IndexedDBHostMsg_DatabaseCount_Params; |
| struct IndexedDBHostMsg_DatabaseCreateIndex_Params; |
| struct IndexedDBHostMsg_DatabaseCreateObjectStore_Params; |
| struct IndexedDBHostMsg_DatabaseCreateTransaction_Params; |
| struct IndexedDBHostMsg_DatabaseDeleteRange_Params; |
| struct IndexedDBHostMsg_DatabaseGet_Params; |
| struct IndexedDBHostMsg_DatabaseOpenCursor_Params; |
| struct IndexedDBHostMsg_DatabasePut_Params; |
| struct IndexedDBHostMsg_DatabaseSetIndexKeys_Params; |
| struct IndexedDBHostMsg_FactoryDeleteDatabase_Params; |
| struct IndexedDBHostMsg_FactoryGetDatabaseNames_Params; |
| struct IndexedDBHostMsg_FactoryOpen_Params; |
| |
| namespace content { |
| class IndexedDBBlobInfo; |
| class IndexedDBConnection; |
| class IndexedDBContextImpl; |
| class IndexedDBCursor; |
| class IndexedDBKey; |
| class IndexedDBKeyPath; |
| class IndexedDBKeyRange; |
| struct IndexedDBDatabaseMetadata; |
| |
| // Handles all IndexedDB related messages from a particular renderer process. |
| class IndexedDBDispatcherHost : public BrowserMessageFilter { |
| public: |
| // Only call the constructor from the UI thread. |
| IndexedDBDispatcherHost(int ipc_process_id, |
| net::URLRequestContextGetter* request_context_getter, |
| IndexedDBContextImpl* indexed_db_context, |
| ChromeBlobStorageContext* blob_storage_context); |
| IndexedDBDispatcherHost(int ipc_process_id, |
| net::URLRequestContext* request_context, |
| IndexedDBContextImpl* indexed_db_context, |
| ChromeBlobStorageContext* blob_storage_context); |
| |
| static ::IndexedDBDatabaseMetadata ConvertMetadata( |
| const content::IndexedDBDatabaseMetadata& metadata); |
| |
| // BrowserMessageFilter implementation. |
| void OnChannelConnected(int32 peer_pid) override; |
| void OnChannelClosing() override; |
| void OnDestruct() const override; |
| base::TaskRunner* OverrideTaskRunnerForMessage( |
| const IPC::Message& message) override; |
| bool OnMessageReceived(const IPC::Message& message) override; |
| |
| void FinishTransaction(int64 host_transaction_id, bool committed); |
| |
| // A shortcut for accessing our context. |
| IndexedDBContextImpl* Context() { return indexed_db_context_.get(); } |
| storage::BlobStorageContext* blob_storage_context() const { |
| return blob_storage_context_->context(); |
| } |
| |
| // IndexedDBCallbacks call these methods to add the results into the |
| // applicable map. See below for more details. |
| int32 Add(IndexedDBCursor* cursor); |
| int32 Add(IndexedDBConnection* connection, |
| int32 ipc_thread_id, |
| const GURL& origin_url); |
| |
| void RegisterTransactionId(int64 host_transaction_id, const GURL& origin_url); |
| |
| IndexedDBCursor* GetCursorFromId(int32 ipc_cursor_id); |
| |
| // These are called to map a 32-bit front-end (renderer-specific) transaction |
| // id to and from a back-end ("host") transaction id that encodes the process |
| // id in the high 32 bits. The mapping is host-specific and ids are validated. |
| int64 HostTransactionId(int64 transaction_id); |
| int64 RendererTransactionId(int64 host_transaction_id); |
| |
| // These are called to decode a host transaction ID, for diagnostic purposes. |
| static uint32 TransactionIdToRendererTransactionId(int64 host_transaction_id); |
| static uint32 TransactionIdToProcessId(int64 host_transaction_id); |
| |
| std::string HoldBlobData(const IndexedDBBlobInfo& blob_info); |
| |
| private: |
| // Friends to enable OnDestruct() delegation. |
| friend class BrowserThread; |
| friend class base::DeleteHelper<IndexedDBDispatcherHost>; |
| |
| // Used in nested classes. |
| typedef std::map<std::string, std::pair<storage::BlobDataHandle*, int>> |
| BlobDataHandleMap; |
| typedef std::map<int64, int64> TransactionIDToDatabaseIDMap; |
| typedef std::map<int64, uint64> TransactionIDToSizeMap; |
| typedef std::map<int64, GURL> TransactionIDToURLMap; |
| typedef std::map<int32, GURL> WebIDBObjectIDToURLMap; |
| |
| // IDMap for RefCounted types |
| template <typename RefCountedType> |
| class RefIDMap { |
| public: |
| typedef int32 KeyType; |
| |
| RefIDMap() {} |
| ~RefIDMap() {} |
| |
| KeyType Add(RefCountedType* data) { |
| return map_.Add(new scoped_refptr<RefCountedType>(data)); |
| } |
| |
| RefCountedType* Lookup(KeyType id) { |
| scoped_refptr<RefCountedType>* ptr = map_.Lookup(id); |
| if (ptr == NULL) |
| return NULL; |
| return ptr->get(); |
| } |
| |
| void Remove(KeyType id) { map_.Remove(id); } |
| |
| void set_check_on_null_data(bool value) { |
| map_.set_check_on_null_data(value); |
| } |
| |
| private: |
| IDMap<scoped_refptr<RefCountedType>, IDMapOwnPointer> map_; |
| |
| DISALLOW_COPY_AND_ASSIGN(RefIDMap); |
| }; |
| |
| class DatabaseDispatcherHost { |
| public: |
| explicit DatabaseDispatcherHost(IndexedDBDispatcherHost* parent); |
| ~DatabaseDispatcherHost(); |
| |
| void CloseAll(); |
| bool OnMessageReceived(const IPC::Message& message); |
| |
| void OnCreateObjectStore( |
| const IndexedDBHostMsg_DatabaseCreateObjectStore_Params& params); |
| void OnDeleteObjectStore(int32 ipc_database_id, |
| int64 transaction_id, |
| int64 object_store_id); |
| void OnCreateTransaction( |
| const IndexedDBHostMsg_DatabaseCreateTransaction_Params&); |
| void OnClose(int32 ipc_database_id); |
| void OnVersionChangeIgnored(int32 ipc_database_id); |
| void OnDestroyed(int32 ipc_database_id); |
| |
| void OnGet(const IndexedDBHostMsg_DatabaseGet_Params& params); |
| // OnPutWrapper starts on the IO thread so that it can grab BlobDataHandles |
| // before posting to the IDB TaskRunner for the rest of the job. |
| void OnPutWrapper(const IndexedDBHostMsg_DatabasePut_Params& params); |
| void OnPut(const IndexedDBHostMsg_DatabasePut_Params& params, |
| std::vector<storage::BlobDataHandle*> handles); |
| void OnSetIndexKeys( |
| const IndexedDBHostMsg_DatabaseSetIndexKeys_Params& params); |
| void OnSetIndexesReady(int32 ipc_database_id, |
| int64 transaction_id, |
| int64 object_store_id, |
| const std::vector<int64>& ids); |
| void OnOpenCursor(const IndexedDBHostMsg_DatabaseOpenCursor_Params& params); |
| void OnCount(const IndexedDBHostMsg_DatabaseCount_Params& params); |
| void OnDeleteRange( |
| const IndexedDBHostMsg_DatabaseDeleteRange_Params& params); |
| void OnClear(int32 ipc_thread_id, |
| int32 ipc_callbacks_id, |
| int32 ipc_database_id, |
| int64 transaction_id, |
| int64 object_store_id); |
| void OnCreateIndex( |
| const IndexedDBHostMsg_DatabaseCreateIndex_Params& params); |
| void OnDeleteIndex(int32 ipc_database_id, |
| int64 transaction_id, |
| int64 object_store_id, |
| int64 index_id); |
| |
| void OnAbort(int32 ipc_database_id, int64 transaction_id); |
| void OnCommit(int32 ipc_database_id, int64 transaction_id); |
| IndexedDBDispatcherHost* parent_; |
| IDMap<IndexedDBConnection, IDMapOwnPointer> map_; |
| WebIDBObjectIDToURLMap database_url_map_; |
| TransactionIDToSizeMap transaction_size_map_; |
| TransactionIDToURLMap transaction_url_map_; |
| TransactionIDToDatabaseIDMap transaction_database_map_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(DatabaseDispatcherHost); |
| }; |
| |
| class CursorDispatcherHost { |
| public: |
| explicit CursorDispatcherHost(IndexedDBDispatcherHost* parent); |
| ~CursorDispatcherHost(); |
| |
| bool OnMessageReceived(const IPC::Message& message); |
| |
| void OnAdvance(int32 ipc_object_store_id, |
| int32 ipc_thread_id, |
| int32 ipc_callbacks_id, |
| uint32 count); |
| void OnContinue(int32 ipc_object_store_id, |
| int32 ipc_thread_id, |
| int32 ipc_callbacks_id, |
| const IndexedDBKey& key, |
| const IndexedDBKey& primary_key); |
| void OnPrefetch(int32 ipc_cursor_id, |
| int32 ipc_thread_id, |
| int32 ipc_callbacks_id, |
| int n); |
| void OnPrefetchReset(int32 ipc_cursor_id, |
| int used_prefetches, |
| int unused_prefetches); |
| void OnDestroyed(int32 ipc_cursor_id); |
| |
| IndexedDBDispatcherHost* parent_; |
| RefIDMap<IndexedDBCursor> map_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(CursorDispatcherHost); |
| }; |
| |
| ~IndexedDBDispatcherHost() override; |
| |
| // Helper templates. |
| template <class ReturnType> |
| ReturnType* GetOrTerminateProcess(IDMap<ReturnType, IDMapOwnPointer>* map, |
| int32 ipc_return_object_id); |
| template <class ReturnType> |
| ReturnType* GetOrTerminateProcess(RefIDMap<ReturnType>* map, |
| int32 ipc_return_object_id); |
| |
| template <typename MapType> |
| void DestroyObject(MapType* map, int32 ipc_object_id); |
| |
| // Message processing. Most of the work is delegated to the dispatcher hosts |
| // below. |
| void OnIDBFactoryGetDatabaseNames( |
| const IndexedDBHostMsg_FactoryGetDatabaseNames_Params& p); |
| void OnIDBFactoryOpen(const IndexedDBHostMsg_FactoryOpen_Params& p); |
| |
| void OnIDBFactoryDeleteDatabase( |
| const IndexedDBHostMsg_FactoryDeleteDatabase_Params& p); |
| |
| void OnAckReceivedBlobs(const std::vector<std::string>& uuids); |
| void OnPutHelper(const IndexedDBHostMsg_DatabasePut_Params& params, |
| std::vector<storage::BlobDataHandle*> handles); |
| |
| void ResetDispatcherHosts(); |
| void DropBlobData(const std::string& uuid); |
| |
| // The getter holds the context until OnChannelConnected() can be called from |
| // the IO thread, which will extract the net::URLRequestContext from it. |
| scoped_refptr<net::URLRequestContextGetter> request_context_getter_; |
| net::URLRequestContext* request_context_; |
| scoped_refptr<IndexedDBContextImpl> indexed_db_context_; |
| scoped_refptr<ChromeBlobStorageContext> blob_storage_context_; |
| |
| BlobDataHandleMap blob_data_handle_map_; |
| |
| // Only access on IndexedDB thread. |
| scoped_ptr<DatabaseDispatcherHost> database_dispatcher_host_; |
| scoped_ptr<CursorDispatcherHost> cursor_dispatcher_host_; |
| |
| // Used to set file permissions for blob storage. |
| int ipc_process_id_; |
| |
| DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBDispatcherHost); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_DISPATCHER_HOST_H_ |