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// Copyright 2014 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_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_
#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_
#include "base/basictypes.h"
#include "base/memory/weak_ptr.h"
#include "base/supports_user_data.h"
#include "base/time/time.h"
#include "content/common/content_export.h"
#include "content/common/service_worker/service_worker_status_code.h"
#include "content/common/service_worker/service_worker_types.h"
#include "content/public/common/request_context_frame_type.h"
#include "content/public/common/request_context_type.h"
#include "content/public/common/resource_type.h"
#include "net/url_request/url_request_job_factory.h"
#include "third_party/WebKit/public/platform/WebServiceWorkerResponseType.h"
namespace net {
class NetworkDelegate;
class URLRequest;
class URLRequestInterceptor;
}
namespace storage {
class BlobStorageContext;
}
namespace content {
class ResourceContext;
class ResourceRequestBody;
class ServiceWorkerContextCore;
class ServiceWorkerContextWrapper;
class ServiceWorkerProviderHost;
// Abstract base class for routing network requests to ServiceWorkers.
// Created one per URLRequest and attached to each request.
class CONTENT_EXPORT ServiceWorkerRequestHandler
: public base::SupportsUserData::Data {
public:
// Attaches a newly created handler if the given |request| needs to
// be handled by ServiceWorker.
// TODO(kinuko): While utilizing UserData to attach data to URLRequest
// has some precedence, it might be better to attach this handler in a more
// explicit way within content layer, e.g. have ResourceRequestInfoImpl
// own it.
static void InitializeHandler(
net::URLRequest* request,
ServiceWorkerContextWrapper* context_wrapper,
storage::BlobStorageContext* blob_storage_context,
int process_id,
int provider_id,
bool skip_service_worker,
FetchRequestMode request_mode,
FetchCredentialsMode credentials_mode,
ResourceType resource_type,
RequestContextType request_context_type,
RequestContextFrameType frame_type,
scoped_refptr<ResourceRequestBody> body);
// Returns the handler attached to |request|. This may return NULL
// if no handler is attached.
static ServiceWorkerRequestHandler* GetHandler(
net::URLRequest* request);
// Creates a protocol interceptor for ServiceWorker.
static scoped_ptr<net::URLRequestInterceptor> CreateInterceptor(
ResourceContext* resource_context);
// Returns true if the request falls into the scope of a ServiceWorker.
// It's only reliable after the ServiceWorkerRequestHandler MaybeCreateJob
// method runs to completion for this request. The AppCache handler uses
// this to avoid colliding with ServiceWorkers.
static bool IsControlledByServiceWorker(net::URLRequest* request);
~ServiceWorkerRequestHandler() override;
// Called via custom URLRequestJobFactory.
virtual net::URLRequestJob* MaybeCreateJob(
net::URLRequest* request,
net::NetworkDelegate* network_delegate,
ResourceContext* context) = 0;
virtual void GetExtraResponseInfo(
bool* was_fetched_via_service_worker,
bool* was_fallback_required_by_service_worker,
GURL* original_url_via_service_worker,
blink::WebServiceWorkerResponseType* response_type_via_service_worker,
base::TimeTicks* fetch_start_time,
base::TimeTicks* fetch_ready_time,
base::TimeTicks* fetch_end_time) const = 0;
// Methods to support cross site navigations.
void PrepareForCrossSiteTransfer(int old_process_id);
void CompleteCrossSiteTransfer(int new_process_id,
int new_provider_id);
void MaybeCompleteCrossSiteTransferInOldProcess(
int old_process_id);
ServiceWorkerContextCore* context() const { return context_.get(); }
protected:
ServiceWorkerRequestHandler(
base::WeakPtr<ServiceWorkerContextCore> context,
base::WeakPtr<ServiceWorkerProviderHost> provider_host,
base::WeakPtr<storage::BlobStorageContext> blob_storage_context,
ResourceType resource_type);
base::WeakPtr<ServiceWorkerContextCore> context_;
base::WeakPtr<ServiceWorkerProviderHost> provider_host_;
base::WeakPtr<storage::BlobStorageContext> blob_storage_context_;
ResourceType resource_type_;
private:
scoped_ptr<ServiceWorkerProviderHost> host_for_cross_site_transfer_;
int old_process_id_;
int old_provider_id_;
DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestHandler);
};
} // namespace content
#endif // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_
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