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// Copyright 2017 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_RENDERER_HOST_WEB_DATABASE_HOST_IMPL_H_
#define CONTENT_BROWSER_RENDERER_HOST_WEB_DATABASE_HOST_IMPL_H_
#include <string>
#include "base/strings/string16.h"
#include "build/build_config.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "storage/browser/database/database_tracker.h"
#include "third_party/blink/public/platform/modules/webdatabase/web_database.mojom.h"
namespace url {
class Origin;
} // namespace url
namespace content {
class CONTENT_EXPORT WebDatabaseHostImpl
: public blink::mojom::WebDatabaseHost,
public storage::DatabaseTracker::Observer {
public:
WebDatabaseHostImpl(int process_id,
scoped_refptr<storage::DatabaseTracker> db_tracker);
~WebDatabaseHostImpl() override;
static void Create(int process_id,
scoped_refptr<storage::DatabaseTracker> db_tracker,
blink::mojom::WebDatabaseHostRequest request);
private:
FRIEND_TEST_ALL_PREFIXES(WebDatabaseHostImplTest, BadMessagesUnauthorized);
FRIEND_TEST_ALL_PREFIXES(WebDatabaseHostImplTest, BadMessagesInvalid);
// blink::mojom::WebDatabaseHost:
void OpenFile(const base::string16& vfs_file_name,
int32_t desired_flags,
OpenFileCallback callback) override;
void DeleteFile(const base::string16& vfs_file_name,
bool sync_dir,
DeleteFileCallback callback) override;
void GetFileAttributes(const base::string16& vfs_file_name,
GetFileAttributesCallback callback) override;
void GetFileSize(const base::string16& vfs_file_name,
GetFileSizeCallback callback) override;
void SetFileSize(const base::string16& vfs_file_name,
int64_t expected_size,
SetFileSizeCallback callback) override;
void GetSpaceAvailable(const url::Origin& origin,
GetSpaceAvailableCallback callback) override;
void Opened(const url::Origin& origin,
const base::string16& database_name,
const base::string16& database_description,
int64_t estimated_size) override;
void Modified(const url::Origin& origin,
const base::string16& database_name) override;
void Closed(const url::Origin& origin,
const base::string16& database_name) override;
void HandleSqliteError(const url::Origin& origin,
const base::string16& database_name,
int32_t error) override;
// DatabaseTracker::Observer callbacks (tracker sequence)
void OnDatabaseSizeChanged(const std::string& origin_identifier,
const base::string16& database_name,
int64_t database_size) override;
void OnDatabaseScheduledForDeletion(
const std::string& origin_identifier,
const base::string16& database_name) override;
void DatabaseDeleteFile(const base::string16& vfs_file_name,
bool sync_dir,
DeleteFileCallback callback,
int reschedule_count);
// Helper function to get the mojo interface for the WebDatabase on the
// render process. Creates the WebDatabase connection if it does not already
// exist.
blink::mojom::WebDatabase& GetWebDatabase();
// Check that an IPC call has permission to access the passed origin. Must
// be called from within the context of a mojo call. Invalid calls will
// report a bad message, which will terminate the calling process. If this
// returns false, the caller should return immediately without invoking
// callbacks.
bool ValidateOrigin(const url::Origin& origin);
// As above, but for calls where the origin is embedded in a VFS filename.
// Empty filenames signalling a temp file are permitted.
bool ValidateOrigin(const base::string16& vfs_file_name);
// Our render process host ID, used to bind to the correct render process.
const int process_id_;
// True if and only if this instance was added as an observer
// to DatabaseTracker.
bool observer_added_;
// Keeps track of all DB connections opened by this renderer
storage::DatabaseConnections database_connections_;
// Interface to the render process WebDatabase.
blink::mojom::WebDatabasePtr database_provider_;
// The database tracker for the current browser context.
const scoped_refptr<storage::DatabaseTracker> db_tracker_;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_WEB_DATABASE_HOST_IMPL_H_
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