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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/modules/filesystem/local_file_system.h"
#include <memory>
#include <utility>
#include "base/feature_list.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/dom/dom_exception.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/fileapi/file_error.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_client.h"
#include "third_party/blink/renderer/core/workers/worker_global_scope.h"
#include "third_party/blink/renderer/modules/filesystem/dom_file_system.h"
#include "third_party/blink/renderer/modules/filesystem/file_system_client.h"
#include "third_party/blink/renderer/modules/filesystem/file_system_dispatcher.h"
#include "third_party/blink/renderer/platform/async_file_system_callbacks.h"
#include "third_party/blink/renderer/platform/content_setting_callbacks.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
namespace blink {
namespace {
void ReportFailure(std::unique_ptr<AsyncFileSystemCallbacks> callbacks,
base::File::Error error) {
callbacks->DidFail(error);
}
} // namespace
class CallbackWrapper final
: public GarbageCollectedFinalized<CallbackWrapper> {
public:
explicit CallbackWrapper(std::unique_ptr<AsyncFileSystemCallbacks> c)
: callbacks_(std::move(c)) {}
virtual ~CallbackWrapper() = default;
std::unique_ptr<AsyncFileSystemCallbacks> Release() {
return std::move(callbacks_);
}
void Trace(blink::Visitor* visitor) {}
private:
std::unique_ptr<AsyncFileSystemCallbacks> callbacks_;
};
LocalFileSystem::~LocalFileSystem() = default;
void LocalFileSystem::ResolveURL(
ExecutionContext* context,
const KURL& file_system_url,
std::unique_ptr<AsyncFileSystemCallbacks> callbacks,
SynchronousType type) {
CallbackWrapper* wrapper =
MakeGarbageCollected<CallbackWrapper>(std::move(callbacks));
RequestFileSystemAccessInternal(
context,
WTF::Bind(&LocalFileSystem::ResolveURLInternal,
WrapCrossThreadPersistent(this), WrapPersistent(context),
file_system_url, WrapPersistent(wrapper), type),
WTF::Bind(&LocalFileSystem::FileSystemNotAllowedInternal,
WrapCrossThreadPersistent(this), WrapPersistent(context),
WrapPersistent(wrapper)));
}
void LocalFileSystem::RequestFileSystem(
ExecutionContext* context,
mojom::blink::FileSystemType type,
long long size,
std::unique_ptr<AsyncFileSystemCallbacks> callbacks,
SynchronousType sync_type) {
CallbackWrapper* wrapper =
MakeGarbageCollected<CallbackWrapper>(std::move(callbacks));
RequestFileSystemAccessInternal(
context,
WTF::Bind(&LocalFileSystem::FileSystemAllowedInternal,
WrapCrossThreadPersistent(this), WrapPersistent(context), type,
WrapPersistent(wrapper), sync_type),
WTF::Bind(&LocalFileSystem::FileSystemNotAllowedInternal,
WrapCrossThreadPersistent(this), WrapPersistent(context),
WrapPersistent(wrapper)));
}
void LocalFileSystem::RequestFileSystemAccessInternal(
ExecutionContext* context,
base::OnceClosure allowed,
base::OnceClosure denied) {
if (!context->IsDocument()) {
if (!Client().RequestFileSystemAccessSync(context)) {
std::move(denied).Run();
return;
}
std::move(allowed).Run();
return;
}
Client().RequestFileSystemAccessAsync(
context,
ContentSettingCallbacks::Create(std::move(allowed), std::move(denied)));
}
void LocalFileSystem::FileSystemNotAvailable(ExecutionContext* context,
CallbackWrapper* callbacks) {
context->GetTaskRunner(TaskType::kFileReading)
->PostTask(FROM_HERE,
WTF::Bind(&ReportFailure, WTF::Passed(callbacks->Release()),
base::File::FILE_ERROR_ABORT));
}
void LocalFileSystem::FileSystemNotAllowedInternal(ExecutionContext* context,
CallbackWrapper* callbacks) {
context->GetTaskRunner(TaskType::kFileReading)
->PostTask(FROM_HERE,
WTF::Bind(&ReportFailure, WTF::Passed(callbacks->Release()),
base::File::FILE_ERROR_ABORT));
}
void LocalFileSystem::FileSystemAllowedInternal(
ExecutionContext* context,
mojom::blink::FileSystemType type,
CallbackWrapper* callbacks,
SynchronousType sync_type) {
std::unique_ptr<AsyncFileSystemCallbacks> async_callbacks =
callbacks->Release();
FileSystemDispatcher& dispatcher = FileSystemDispatcher::From(context);
if (sync_type == kSynchronous) {
dispatcher.OpenFileSystemSync(context->GetSecurityOrigin(), type,
std::move(async_callbacks));
} else {
dispatcher.OpenFileSystem(context->GetSecurityOrigin(), type,
std::move(async_callbacks));
}
}
void LocalFileSystem::ResolveURLInternal(ExecutionContext* context,
const KURL& file_system_url,
CallbackWrapper* callbacks,
SynchronousType sync_type) {
FileSystemDispatcher& dispatcher = FileSystemDispatcher::From(context);
std::unique_ptr<AsyncFileSystemCallbacks> async_callbacks =
callbacks->Release();
if (sync_type == kSynchronous) {
dispatcher.ResolveURLSync(file_system_url, std::move(async_callbacks));
} else {
dispatcher.ResolveURL(file_system_url, std::move(async_callbacks));
}
}
LocalFileSystem::LocalFileSystem(LocalFrame& frame,
std::unique_ptr<FileSystemClient> client)
: Supplement<LocalFrame>(frame), client_(std::move(client)) {
DCHECK(client_);
}
LocalFileSystem::LocalFileSystem(WorkerClients& worker_clients,
std::unique_ptr<FileSystemClient> client)
: Supplement<WorkerClients>(worker_clients), client_(std::move(client)) {
DCHECK(client_);
}
void LocalFileSystem::Trace(blink::Visitor* visitor) {
Supplement<LocalFrame>::Trace(visitor);
Supplement<WorkerClients>::Trace(visitor);
}
const char LocalFileSystem::kSupplementName[] = "LocalFileSystem";
LocalFileSystem* LocalFileSystem::From(ExecutionContext& context) {
if (auto* document = DynamicTo<Document>(context)) {
LocalFileSystem* file_system =
Supplement<LocalFrame>::From<LocalFileSystem>(document->GetFrame());
DCHECK(file_system);
return file_system;
}
WorkerClients* clients = To<WorkerGlobalScope>(context).Clients();
DCHECK(clients);
LocalFileSystem* file_system =
Supplement<WorkerClients>::From<LocalFileSystem>(clients);
DCHECK(file_system);
return file_system;
}
void ProvideLocalFileSystemTo(LocalFrame& frame,
std::unique_ptr<FileSystemClient> client) {
frame.ProvideSupplement(
MakeGarbageCollected<LocalFileSystem>(frame, std::move(client)));
}
void ProvideLocalFileSystemToWorker(WorkerClients* worker_clients,
std::unique_ptr<FileSystemClient> client) {
Supplement<WorkerClients>::ProvideTo(*worker_clients,
MakeGarbageCollected<LocalFileSystem>(
*worker_clients, std::move(client)));
}
} // namespace blink