Flush out initial [un]registerServiceWorker roundtrip

content/browser/service_worker/service_worker_dispatcher_host.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/service_worker/service_worker_dispatcher_host.h"
 
+#include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/service_worker/service_worker_context.h"
 #include "content/common/service_worker_messages.h"
 #include "ipc/ipc_message_macros.h"
 #include "url/gurl.h"
 
 namespace content {
 
 ServiceWorkerDispatcherHost::ServiceWorkerDispatcherHost(
+    int render_process_id,
     ServiceWorkerContext* context)
-    : context_(context) {}
+    : render_process_id_(render_process_id), context_(context) {}
 
 ServiceWorkerDispatcherHost::~ServiceWorkerDispatcherHost() {}
 
 bool ServiceWorkerDispatcherHost::OnMessageReceived(const IPC::Message& message,
                                                     bool* message_was_ok) {
-
   if (IPC_MESSAGE_CLASS(message) != ServiceWorkerMsgStart)
     return false;
 
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP_EX(
     ServiceWorkerDispatcherHost, message, *message_was_ok)
     IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_RegisterServiceWorker,
                         OnRegisterServiceWorker)
     IPC_MESSAGE_HANDLER(ServiceWorkerHostMsg_UnregisterServiceWorker,
                         OnUnregisterServiceWorker)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
-void ServiceWorkerDispatcherHost::OnRegisterServiceWorker(int32 registry_id,
-                                                       const string16& scope,
-                                                       const GURL& script_url) {
-  // TODO(alecflett): Enforce that script_url must have the same
-  // origin as the registering document.
+// TODO(alecflett): Store the worker_id keyed by (domain+pattern,
+// script) so we don't always return a new service worker id.
+static int32 NextWorkerId() {
+  static int32 worker_id = 0;
+  return worker_id++;
+}
+
+void ServiceWorkerDispatcherHost::OnRegisterServiceWorker(
+    int32 thread_id,
+    int32 request_id,
+    const GURL& security_origin,
+    const string16& scope,
+    const GURL& script_url) {
+  // We're using cookie access as a proxy for ServiceWorker
+  // registration permission.
+  // TODO(alecflett): add a ServiceWorker-specific policy query.
+  ChildProcessSecurityPolicyImpl* policy =
+      ChildProcessSecurityPolicyImpl::GetInstance();
+  if (!policy->CanAccessCookiesForOrigin(render_process_id_, security_origin))
+    return;
+
+  Send(new ServiceWorkerMsg_ServiceWorkerRegistered(
+      thread_id, request_id, NextWorkerId()));
 }
 
 void ServiceWorkerDispatcherHost::OnUnregisterServiceWorker(
-    int32 registry_id,
-    const string16& scope) {}
+    int32 thread_id,
+    int32 request_id,
+    const GURL& security_origin,
+    const string16& scope) {
+  // We're using cookie access as a proxy for ServiceWorker
+  // registration permission.
+  // TODO(alecflett): add a ServiceWorker-specific policy query.
+  ChildProcessSecurityPolicyImpl* policy =
+      ChildProcessSecurityPolicyImpl::GetInstance();
+  if (!policy->CanAccessCookiesForOrigin(render_process_id_, security_origin))
+    return;
+
+  Send(new ServiceWorkerMsg_ServiceWorkerUnregistered(
+      thread_id, request_id, NextWorkerId()));
+}
 
 }  // namespace content