src/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 webkit_blob {
  23 class BlobStorageContext;
  24 }
  25
  26 namespace content {
  27
  28 class ServiceWorkerContextCore;
  29 class ServiceWorkerContextWrapper;
  30 class ServiceWorkerProviderHost;
  31
  32 // Abstract base class for routing network requests to ServiceWorkers.
  33 // Created one per URLRequest and attached to each request.
  34 class CONTENT_EXPORT ServiceWorkerRequestHandler
  35     : public base::SupportsUserData::Data {
  36  public:
  37   // Attaches a newly created handler if the given |request| needs to
  38   // be handled by ServiceWorker.
  39   // TODO(kinuko): While utilizing UserData to attach data to URLRequest
  40   // has some precedence, it might be better to attach this handler in a more
  41   // explicit way within content layer, e.g. have ResourceRequestInfoImpl
  42   // own it.
  43   static void InitializeHandler(
  44       net::URLRequest* request,
  45       ServiceWorkerContextWrapper* context_wrapper,
  46       webkit_blob::BlobStorageContext* blob_storage_context,
  47       int process_id,
  48       int provider_id,
  49       ResourceType resource_type);
  50
  51   // Returns the handler attached to |request|. This may return NULL
  52   // if no handler is attached.
  53   static ServiceWorkerRequestHandler* GetHandler(
  54       net::URLRequest* request);
  55
  56   // Creates a protocol interceptor for ServiceWorker.
  57   static scoped_ptr<net::URLRequestInterceptor> CreateInterceptor();
  58
  59   virtual ~ServiceWorkerRequestHandler();
  60
  61   // Called via custom URLRequestJobFactory.
  62   virtual net::URLRequestJob* MaybeCreateJob(
  63       net::URLRequest* request,
  64       net::NetworkDelegate* network_delegate) = 0;
  65
  66   virtual void GetExtraResponseInfo(
  67       bool* was_fetched_via_service_worker,
  68       GURL* original_url_via_service_worker) const = 0;
  69
  70  protected:
  71   ServiceWorkerRequestHandler(
  72       base::WeakPtr<ServiceWorkerContextCore> context,
  73       base::WeakPtr<ServiceWorkerProviderHost> provider_host,
  74       base::WeakPtr<webkit_blob::BlobStorageContext> blob_storage_context,
  75       ResourceType resource_type);
  76
  77   base::WeakPtr<ServiceWorkerContextCore> context_;
  78   base::WeakPtr<ServiceWorkerProviderHost> provider_host_;
  79   base::WeakPtr<webkit_blob::BlobStorageContext> blob_storage_context_;
  80   ResourceType resource_type_;
  81
  82  private:
  83   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestHandler);
  84 };
  85
  86 }  // namespace content
  87
  88 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_REQUEST_HANDLER_H_