content/browser/service_worker/service_worker_request_handler.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_
   6 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "base/supports_user_data.h"
  11 #include "content/common/content_export.h"
  12 #include "content/common/service_worker/service_worker_status_code.h"
  13 #include "content/public/common/resource_type.h"
  14 #include "net/url_request/url_request_job_factory.h"
  15
  16 namespace net {
  17 class NetworkDelegate;
  18 class URLRequest;
  19 class URLRequestInterceptor;
  20 }
  21
  22 namespace storage {
  23 class BlobStorageContext;
  24 }
  25
  26 namespace content {
  27
  28 class ResourceRequestBody;
  29 class ServiceWorkerContextCore;
  30 class ServiceWorkerContextWrapper;
  31 class ServiceWorkerProviderHost;
  32
  33 // Abstract base class for routing network requests to ServiceWorkers.
  34 // Created one per URLRequest and attached to each request.
  35 class CONTENT_EXPORT ServiceWorkerRequestHandler
  36     : public base::SupportsUserData::Data {
  37  public:
  38   // Attaches a newly created handler if the given |request| needs to
  39   // be handled by ServiceWorker.
  40   // TODO(kinuko): While utilizing UserData to attach data to URLRequest
  41   // has some precedence, it might be better to attach this handler in a more
  42   // explicit way within content layer, e.g. have ResourceRequestInfoImpl
  43   // own it.
  44   static void InitializeHandler(
  45       net::URLRequest* request,
  46       ServiceWorkerContextWrapper* context_wrapper,
  47       storage::BlobStorageContext* blob_storage_context,
  48       int process_id,
  49       int provider_id,
  50       ResourceType resource_type,
  51       scoped_refptr<ResourceRequestBody> body);
  52
  53   // Returns the handler attached to |request|. This may return NULL
  54   // if no handler is attached.
  55   static ServiceWorkerRequestHandler* GetHandler(
  56       net::URLRequest* request);
  57
  58   // Creates a protocol interceptor for ServiceWorker.
  59   static scoped_ptr<net::URLRequestInterceptor> CreateInterceptor();
  60
  61   virtual ~ServiceWorkerRequestHandler();
  62
  63   // Called via custom URLRequestJobFactory.
  64   virtual net::URLRequestJob* MaybeCreateJob(
  65       net::URLRequest* request,
  66       net::NetworkDelegate* network_delegate) = 0;
  67
  68   virtual void GetExtraResponseInfo(
  69       bool* was_fetched_via_service_worker,
  70       GURL* original_url_via_service_worker) const = 0;
  71
  72  protected:
  73   ServiceWorkerRequestHandler(
  74       base::WeakPtr<ServiceWorkerContextCore> context,
  75       base::WeakPtr<ServiceWorkerProviderHost> provider_host,
  76       base::WeakPtr<storage::BlobStorageContext> blob_storage_context,
  77       ResourceType resource_type);
  78
  79   base::WeakPtr<ServiceWorkerContextCore> context_;
  80   base::WeakPtr<ServiceWorkerProviderHost> provider_host_;
  81   base::WeakPtr<storage::BlobStorageContext> blob_storage_context_;
  82   ResourceType resource_type_;
  83
  84  private:
  85   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestHandler);
  86 };
  87
  88 }  // namespace content
  89
  90 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_