1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
  172
  173
  174
  175
  176
  177
  178
  179
  180
  181
  182
  183
  184
  185
  186
  187
  188
  189
  190
  191
  192
  193
  194
  195
  196
  197

content / renderer / worker / embedded_shared_worker_stub.cc [blame]

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/renderer/worker/embedded_shared_worker_stub.h"

#include <stdint.h>
#include <utility>

#include "base/feature_list.h"
#include "base/functional/bind.h"
#include "base/ranges/algorithm.h"
#include "content/renderer/content_security_policy_util.h"
#include "content/renderer/policy_container_util.h"
#include "content/renderer/worker/fetch_client_settings_object_helpers.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/loader/worker_main_script_load_parameters.h"
#include "third_party/blink/public/common/messaging/message_port_channel.h"
#include "third_party/blink/public/common/messaging/message_port_descriptor.h"
#include "third_party/blink/public/mojom/browser_interface_broker.mojom.h"
#include "third_party/blink/public/mojom/devtools/devtools_agent.mojom.h"
#include "third_party/blink/public/mojom/renderer_preference_watcher.mojom.h"
#include "third_party/blink/public/mojom/service_worker/service_worker_object.mojom.h"
#include "third_party/blink/public/mojom/worker/worker_content_settings_proxy.mojom.h"
#include "third_party/blink/public/platform/child_url_loader_factory_bundle.h"
#include "third_party/blink/public/platform/web_dedicated_or_shared_worker_fetch_context.h"
#include "third_party/blink/public/platform/web_fetch_client_settings_object.h"
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/web/web_shared_worker.h"
#include "url/origin.h"

namespace content {

EmbeddedSharedWorkerStub::EmbeddedSharedWorkerStub(
    blink::mojom::SharedWorkerInfoPtr info,
    const blink::SharedWorkerToken& token,
    const blink::StorageKey& constructor_key,
    const url::Origin& origin,
    bool is_constructor_secure_context,
    const std::string& user_agent,
    const blink::UserAgentMetadata& ua_metadata,
    bool pause_on_start,
    const base::UnguessableToken& devtools_worker_token,
    const blink::RendererPreferences& renderer_preferences,
    mojo::PendingReceiver<blink::mojom::RendererPreferenceWatcher>
        preference_watcher_receiver,
    mojo::PendingRemote<blink::mojom::WorkerContentSettingsProxy>
        content_settings,
    blink::mojom::ServiceWorkerContainerInfoForClientPtr
        service_worker_container_info,
    blink::mojom::WorkerMainScriptLoadParamsPtr main_script_load_params,
    std::unique_ptr<blink::PendingURLLoaderFactoryBundle>
        pending_subresource_loader_factory_bundle,
    blink::mojom::ControllerServiceWorkerInfoPtr controller_info,
    blink::mojom::PolicyContainerPtr policy_container,
    mojo::PendingRemote<blink::mojom::SharedWorkerHost> host,
    mojo::PendingReceiver<blink::mojom::SharedWorker> receiver,
    mojo::PendingRemote<blink::mojom::BrowserInterfaceBroker>
        browser_interface_broker,
    ukm::SourceId ukm_source_id,
    bool require_cross_site_request_for_cookies,
    const std::vector<std::string>& cors_exempt_header_list)
    : receiver_(this, std::move(receiver)) {
  DCHECK(main_script_load_params);
  DCHECK(pending_subresource_loader_factory_bundle);

  // Initialize the loading parameters for the main worker script loaded by
  // the browser process.
  auto worker_main_script_load_params =
      std::make_unique<blink::WorkerMainScriptLoadParameters>();
  worker_main_script_load_params->request_id =
      main_script_load_params->request_id;
  worker_main_script_load_params->response_head =
      std::move(main_script_load_params->response_head);
  worker_main_script_load_params->response_body =
      std::move(main_script_load_params->response_body);
  worker_main_script_load_params->redirect_responses =
      std::move(main_script_load_params->redirect_response_heads);
  worker_main_script_load_params->redirect_infos =
      main_script_load_params->redirect_infos;
  worker_main_script_load_params->url_loader_client_endpoints =
      std::move(main_script_load_params->url_loader_client_endpoints);

  // If the network service crashes, then self-destruct so clients don't get
  // stuck with a worker with a broken loader. Self-destruction is effectively
  // the same as the worker's process crashing.
  default_factory_disconnect_handler_holder_.Bind(std::move(
      pending_subresource_loader_factory_bundle->pending_default_factory()));
  default_factory_disconnect_handler_holder_->Clone(
      pending_subresource_loader_factory_bundle->pending_default_factory()
          .InitWithNewPipeAndPassReceiver());
  default_factory_disconnect_handler_holder_.set_disconnect_handler(
      base::BindOnce(&EmbeddedSharedWorkerStub::Terminate,
                     base::Unretained(this)));

  // Initialize the subresource loader factory bundle passed by the browser
  // process.
  subresource_loader_factory_bundle_ =
      base::MakeRefCounted<blink::ChildURLLoaderFactoryBundle>(
          std::make_unique<blink::ChildPendingURLLoaderFactoryBundle>(
              std::move(pending_subresource_loader_factory_bundle)));

  if (service_worker_container_info) {
    service_worker_provider_context_ =
        base::MakeRefCounted<ServiceWorkerProviderContext>(
            blink::mojom::ServiceWorkerContainerType::kForSharedWorker,
            std::move(service_worker_container_info->client_receiver),
            std::move(service_worker_container_info->host_remote),
            std::move(controller_info), subresource_loader_factory_bundle_);
  }

  scoped_refptr<blink::WebWorkerFetchContext> web_worker_fetch_context =
      CreateWorkerFetchContext(constructor_key, std::move(renderer_preferences),
                               std::move(preference_watcher_receiver),
                               cors_exempt_header_list,
                               require_cross_site_request_for_cookies);

  impl_ = blink::WebSharedWorker::CreateAndStart(
      token, info->url, info->options->type, info->options->credentials,
      blink::WebString::FromUTF8(info->options->name),
      blink::WebSecurityOrigin(constructor_key.origin()),
      blink::WebSecurityOrigin(origin), is_constructor_secure_context,
      blink::WebString::FromUTF8(user_agent), ua_metadata,
      ToWebContentSecurityPolicies(std::move(info->content_security_policies)),
      FetchClientSettingsObjectFromMojomToWeb(
          info->outside_fetch_client_settings_object),
      devtools_worker_token, std::move(content_settings),
      std::move(browser_interface_broker), pause_on_start,
      std::move(worker_main_script_load_params),
      ToWebPolicyContainer(std::move(policy_container)),
      std::move(web_worker_fetch_context), std::move(host), this, ukm_source_id,
      require_cross_site_request_for_cookies);

  // If the host drops its connection, then self-destruct.
  receiver_.set_disconnect_handler(base::BindOnce(
      &EmbeddedSharedWorkerStub::Terminate, base::Unretained(this)));
}

EmbeddedSharedWorkerStub::~EmbeddedSharedWorkerStub() {
  // Destruction closes our connection to the host, triggering the host to
  // cleanup and notify clients of this worker going away.
}

void EmbeddedSharedWorkerStub::WorkerContextDestroyed() {
  delete this;
}

scoped_refptr<blink::WebWorkerFetchContext>
EmbeddedSharedWorkerStub::CreateWorkerFetchContext(
    const blink::StorageKey& constructor_key,
    const blink::RendererPreferences& renderer_preferences,
    mojo::PendingReceiver<blink::mojom::RendererPreferenceWatcher>
        preference_watcher_receiver,
    const std::vector<std::string>& cors_exempt_header_list,
    bool require_cross_site_request_for_cookies) {
  // Make the factory used for service worker network fallback.
  std::unique_ptr<network::PendingSharedURLLoaderFactory> fallback_factory =
      subresource_loader_factory_bundle_->Clone();

  blink::WebVector<blink::WebString> web_cors_exempt_header_list(
      cors_exempt_header_list.size());
  base::ranges::transform(
      cors_exempt_header_list, web_cors_exempt_header_list.begin(),
      [](const auto& header) { return blink::WebString::FromLatin1(header); });

  // |pending_subresource_loader_updater| and
  // |pending_resource_load_info_notifier| are not used for shared workers.
  scoped_refptr<blink::WebDedicatedOrSharedWorkerFetchContext>
      web_dedicated_or_shared_worker_fetch_context =
          blink::WebDedicatedOrSharedWorkerFetchContext::Create(
              service_worker_provider_context_.get(), renderer_preferences,
              std::move(preference_watcher_receiver),
              subresource_loader_factory_bundle_->Clone(),
              std::move(fallback_factory),
              /*pending_subresource_loader_updater=*/mojo::NullReceiver(),
              web_cors_exempt_header_list,
              /*pending_resource_load_info_notifier=*/mojo::NullRemote());

  web_dedicated_or_shared_worker_fetch_context->set_site_for_cookies(
      require_cross_site_request_for_cookies
          ? net::SiteForCookies()
          : constructor_key.ToNetSiteForCookies());

  return web_dedicated_or_shared_worker_fetch_context;
}

void EmbeddedSharedWorkerStub::Connect(int connection_request_id,
                                       blink::MessagePortDescriptor port) {
  impl_->Connect(connection_request_id, std::move(port));
}

void EmbeddedSharedWorkerStub::Terminate() {
  impl_->TerminateWorkerContext();
}

}  // namespace content