content/browser/service_worker/service_worker_request_handler.cc

   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 #include "content/browser/service_worker/service_worker_request_handler.h"
   6
   7 #include "content/browser/service_worker/service_worker_context_core.h"
   8 #include "content/browser/service_worker/service_worker_context_wrapper.h"
   9 #include "content/browser/service_worker/service_worker_provider_host.h"
  10 #include "content/browser/service_worker/service_worker_registration.h"
  11 #include "content/browser/service_worker/service_worker_url_request_job.h"
  12 #include "content/browser/service_worker/service_worker_utils.h"
  13 #include "content/common/service_worker/service_worker_types.h"
  14 #include "net/url_request/url_request.h"
  15
  16 namespace content {
  17
  18 namespace {
  19
  20 int kUserDataKey;  // Key value is not important.
  21
  22 class ServiceWorkerRequestInterceptor
  23     : public net::URLRequestJobFactory::ProtocolHandler {
  24  public:
  25   ServiceWorkerRequestInterceptor() {}
  26   virtual ~ServiceWorkerRequestInterceptor() {}
  27   virtual net::URLRequestJob* MaybeCreateJob(
  28       net::URLRequest* request,
  29       net::NetworkDelegate* network_delegate) const OVERRIDE {
  30     ServiceWorkerRequestHandler* handler =
  31         ServiceWorkerRequestHandler::GetHandler(request);
  32     if (!handler)
  33       return NULL;
  34     return handler->MaybeCreateJob(request, network_delegate);
  35   }
  36
  37  private:
  38   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestInterceptor);
  39 };
  40
  41 }  // namespace
  42
  43 void ServiceWorkerRequestHandler::InitializeHandler(
  44     net::URLRequest* request,
  45     ServiceWorkerContextWrapper* context_wrapper,
  46     int process_id,
  47     int provider_id,
  48     ResourceType::Type resource_type) {
  49   if (!ServiceWorkerUtils::IsFeatureEnabled())
  50     return;
  51
  52   if (!context_wrapper || !context_wrapper->context() ||
  53       provider_id == kInvalidServiceWorkerProviderId) {
  54     return;
  55   }
  56
  57   ServiceWorkerProviderHost* provider_host =
  58       context_wrapper->context()->GetProviderHost(process_id, provider_id);
  59   if (!provider_host)
  60     return;
  61
  62   scoped_ptr<ServiceWorkerRequestHandler> handler(
  63       provider_host->CreateRequestHandler(resource_type));
  64   if (!handler)
  65     return;
  66
  67   request->SetUserData(&kUserDataKey, handler.release());
  68 }
  69
  70 ServiceWorkerRequestHandler* ServiceWorkerRequestHandler::GetHandler(
  71     net::URLRequest* request) {
  72   return reinterpret_cast<ServiceWorkerRequestHandler*>(
  73       request->GetUserData(&kUserDataKey));
  74 }
  75
  76 scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
  77 ServiceWorkerRequestHandler::CreateInterceptor() {
  78   return make_scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>(
  79       new ServiceWorkerRequestInterceptor);
  80 }
  81
  82 ServiceWorkerRequestHandler::~ServiceWorkerRequestHandler() {
  83 }
  84
  85 ServiceWorkerRequestHandler::ServiceWorkerRequestHandler(
  86     base::WeakPtr<ServiceWorkerContextCore> context,
  87     base::WeakPtr<ServiceWorkerProviderHost> provider_host,
  88     ResourceType::Type resource_type)
  89     : context_(context),
  90       provider_host_(provider_host),
  91       resource_type_(resource_type) {
  92 }
  93
  94 }  // namespace content