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 <string>
   8
   9 #include "content/browser/service_worker/service_worker_context_core.h"
  10 #include "content/browser/service_worker/service_worker_context_wrapper.h"
  11 #include "content/browser/service_worker/service_worker_provider_host.h"
  12 #include "content/browser/service_worker/service_worker_registration.h"
  13 #include "content/browser/service_worker/service_worker_url_request_job.h"
  14 #include "content/browser/service_worker/service_worker_utils.h"
  15 #include "content/common/resource_request_body.h"
  16 #include "content/common/service_worker/service_worker_types.h"
  17 #include "content/public/browser/resource_context.h"
  18 #include "content/public/common/origin_util.h"
  19 #include "net/base/net_util.h"
  20 #include "net/url_request/url_request.h"
  21 #include "net/url_request/url_request_interceptor.h"
  22 #include "storage/browser/blob/blob_storage_context.h"
  23
  24 namespace content {
  25
  26 namespace {
  27
  28 int kUserDataKey;  // Key value is not important.
  29
  30 class ServiceWorkerRequestInterceptor
  31     : public net::URLRequestInterceptor {
  32  public:
  33   explicit ServiceWorkerRequestInterceptor(ResourceContext* resource_context)
  34       : resource_context_(resource_context) {}
  35   ~ServiceWorkerRequestInterceptor() override {}
  36   net::URLRequestJob* MaybeInterceptRequest(
  37       net::URLRequest* request,
  38       net::NetworkDelegate* network_delegate) const override {
  39     ServiceWorkerRequestHandler* handler =
  40         ServiceWorkerRequestHandler::GetHandler(request);
  41     if (!handler)
  42       return NULL;
  43     return handler->MaybeCreateJob(
  44         request, network_delegate, resource_context_);
  45   }
  46
  47  private:
  48   ResourceContext* resource_context_;
  49   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestInterceptor);
  50 };
  51
  52 }  // namespace
  53
  54 void ServiceWorkerRequestHandler::InitializeHandler(
  55     net::URLRequest* request,
  56     ServiceWorkerContextWrapper* context_wrapper,
  57     storage::BlobStorageContext* blob_storage_context,
  58     int process_id,
  59     int provider_id,
  60     bool skip_service_worker,
  61     FetchRequestMode request_mode,
  62     FetchCredentialsMode credentials_mode,
  63     ResourceType resource_type,
  64     RequestContextType request_context_type,
  65     RequestContextFrameType frame_type,
  66     scoped_refptr<ResourceRequestBody> body) {
  67   if (!OriginCanAccessServiceWorkers(request->url()))
  68     return;
  69
  70   if (!context_wrapper || !context_wrapper->context() ||
  71       provider_id == kInvalidServiceWorkerProviderId) {
  72     return;
  73   }
  74
  75   ServiceWorkerProviderHost* provider_host =
  76       context_wrapper->context()->GetProviderHost(process_id, provider_id);
  77   if (!provider_host || !provider_host->IsContextAlive())
  78     return;
  79
  80   if (skip_service_worker) {
  81     if (ServiceWorkerUtils::IsMainResourceType(resource_type)) {
  82       provider_host->SetDocumentUrl(net::SimplifyUrlForRequest(request->url()));
  83       provider_host->SetTopmostFrameUrl(request->first_party_for_cookies());
  84       // A page load with skip_service_worker should be triggered by
  85       // shift-reload, so retain all live matching registrations.
  86       provider_host->AddAllMatchingRegistrations();
  87     }
  88     return;
  89   }
  90
  91   scoped_ptr<ServiceWorkerRequestHandler> handler(
  92       provider_host->CreateRequestHandler(request_mode,
  93                                           credentials_mode,
  94                                           resource_type,
  95                                           request_context_type,
  96                                           frame_type,
  97                                           blob_storage_context->AsWeakPtr(),
  98                                           body));
  99   if (!handler)
 100     return;
 101
 102   request->SetUserData(&kUserDataKey, handler.release());
 103 }
 104
 105 ServiceWorkerRequestHandler* ServiceWorkerRequestHandler::GetHandler(
 106     net::URLRequest* request) {
 107   return static_cast<ServiceWorkerRequestHandler*>(
 108       request->GetUserData(&kUserDataKey));
 109 }
 110
 111 scoped_ptr<net::URLRequestInterceptor>
 112 ServiceWorkerRequestHandler::CreateInterceptor(
 113     ResourceContext* resource_context) {
 114   return scoped_ptr<net::URLRequestInterceptor>(
 115       new ServiceWorkerRequestInterceptor(resource_context));
 116 }
 117
 118 bool ServiceWorkerRequestHandler::IsControlledByServiceWorker(
 119     net::URLRequest* request) {
 120   ServiceWorkerRequestHandler* handler = GetHandler(request);
 121   if (!handler || !handler->provider_host_)
 122     return false;
 123   return handler->provider_host_->associated_registration() ||
 124          handler->provider_host_->running_hosted_version();
 125 }
 126
 127 void ServiceWorkerRequestHandler::PrepareForCrossSiteTransfer(
 128     int old_process_id) {
 129   if (!provider_host_ || !context_)
 130     return;
 131   old_process_id_ = old_process_id;
 132   old_provider_id_ = provider_host_->provider_id();
 133   host_for_cross_site_transfer_ =
 134       context_->TransferProviderHostOut(old_process_id,
 135                                         provider_host_->provider_id());
 136   DCHECK_EQ(provider_host_.get(), host_for_cross_site_transfer_.get());
 137 }
 138
 139 void ServiceWorkerRequestHandler::CompleteCrossSiteTransfer(
 140     int new_process_id, int new_provider_id) {
 141   if (!host_for_cross_site_transfer_.get() || !context_)
 142     return;
 143   DCHECK_EQ(provider_host_.get(), host_for_cross_site_transfer_.get());
 144   context_->TransferProviderHostIn(
 145       new_process_id,
 146       new_provider_id,
 147       host_for_cross_site_transfer_.Pass());
 148   DCHECK_EQ(provider_host_->provider_id(), new_provider_id);
 149 }
 150
 151 void ServiceWorkerRequestHandler::MaybeCompleteCrossSiteTransferInOldProcess(
 152     int old_process_id) {
 153   if (!host_for_cross_site_transfer_.get() || !context_ ||
 154       old_process_id_ != old_process_id) {
 155     return;
 156   }
 157   CompleteCrossSiteTransfer(old_process_id_, old_provider_id_);
 158 }
 159
 160 ServiceWorkerRequestHandler::~ServiceWorkerRequestHandler() {
 161 }
 162
 163 ServiceWorkerRequestHandler::ServiceWorkerRequestHandler(
 164     base::WeakPtr<ServiceWorkerContextCore> context,
 165     base::WeakPtr<ServiceWorkerProviderHost> provider_host,
 166     base::WeakPtr<storage::BlobStorageContext> blob_storage_context,
 167     ResourceType resource_type)
 168     : context_(context),
 169       provider_host_(provider_host),
 170       blob_storage_context_(blob_storage_context),
 171       resource_type_(resource_type),
 172       old_process_id_(0),
 173       old_provider_id_(kInvalidServiceWorkerProviderId) {
 174 }
 175
 176 }  // namespace content