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