Credential Manager: Renderer-side implementation.

components/password_manager/content/renderer/credential_manager_dispatcher.cc

+// Copyright 2014 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 "components/password_manager/content/renderer/credential_manager_dispatcher.h"
+
+#include "components/password_manager/content/common/credential_manager_messages.h"
+#include "components/password_manager/content/common/credential_manager_types.h"
+#include "content/public/renderer/render_thread.h"
+#include "third_party/WebKit/public/platform/WebCredentialManagerError.h"
+
+namespace password_manager {
+
+namespace {
+
+template<typename T>
+void ClearCallbacksMapWithErrors(T* callbacks_map) {
+  typename T::iterator iter(callbacks_map);
+  while (!iter.IsAtEnd()) {
+    blink::WebCredentialManagerError reason(
+        blink::WebCredentialManagerError::ErrorTypeUnknown,
+        "An unknown error occurred.");
+    iter.GetCurrentValue()->onError(&reason);
+    callbacks_map->Remove(iter.GetCurrentKey());
+    iter.Advance();
+  }
+}
+
+// Limit the size of the federations array that we pass to the browser to
+// something reasonably sane.
+const size_t kMaxNumFederations = 100;

[Ilya Sherman, 2014/08/15 20:42:38]

:)

+
+} // namespace
+
+CredentialManagerDispatcher::CredentialManagerDispatcher() {
+  routing_id_ = content::RenderThread::Get()->GenerateRoutingID();
+  content::RenderThread::Get()->AddRoute(routing_id_, this);
+}
+
+CredentialManagerDispatcher::~CredentialManagerDispatcher() {
+  content::RenderThread::Get()->RemoveRoute(routing_id_);
+  ClearCallbacksMapWithErrors(&failed_sign_in_callbacks_);
+  ClearCallbacksMapWithErrors(&signed_in_callbacks_);
+  ClearCallbacksMapWithErrors(&signed_out_callbacks_);
+  ClearCallbacksMapWithErrors(&request_callbacks_);
+}
+
+// -----------------------------------------------------------------------------
+// Handle messages from the browser.
+
+bool CredentialManagerDispatcher::OnMessageReceived(
+    const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(CredentialManagerDispatcher, message)
+    IPC_MESSAGE_HANDLER(CredentialManagerMsg_AcknowledgeFailedSignIn,
+                        OnFailedSignInResponse)
+    IPC_MESSAGE_HANDLER(CredentialManagerMsg_AcknowledgeSignedIn,
+                        OnSignedInResponse)
+    IPC_MESSAGE_HANDLER(CredentialManagerMsg_AcknowledgeSignedOut,
+                        OnSignedOutResponse)
+    IPC_MESSAGE_HANDLER(CredentialManagerMsg_RequestResponse, OnRequestResponse)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void CredentialManagerDispatcher::OnFailedSignInResponse(
+    int request_id) {
+  NotificationCallbacks* callbacks =
+      failed_sign_in_callbacks_.Lookup(request_id);
+  DCHECK(callbacks);
+  callbacks->onSuccess();
+  failed_sign_in_callbacks_.Remove(request_id);
+}
+
+void CredentialManagerDispatcher::OnSignedInResponse(
+    int request_id) {
+  NotificationCallbacks* callbacks =
+      signed_in_callbacks_.Lookup(request_id);
+  DCHECK(callbacks);
+  callbacks->onSuccess();
+  signed_in_callbacks_.Remove(request_id);
+}
+
+void CredentialManagerDispatcher::OnSignedOutResponse(
+    int request_id) {
+  NotificationCallbacks* callbacks =
+      signed_out_callbacks_.Lookup(request_id);
+  DCHECK(callbacks);
+  callbacks->onSuccess();
+  signed_out_callbacks_.Remove(request_id);

[Ilya Sherman, 2014/08/15 20:42:38]

Seems like you have a bunch of very similar methods.  Perhaps the common parts
could be factored out into a helper function?

[Mike West, 2014/08/19 08:37:15]

Extracted this out to RespondToNotificationCallback.

+}
+
+void CredentialManagerDispatcher::OnRequestResponse(
+    int request_id, const CredentialManagerCredentialInfo& info) {
+  RequestCallbacks* callbacks = request_callbacks_.Lookup(request_id);
+  DCHECK(callbacks);
+  // TODO(mkwst): Split into local/federated credentials.
+  blink::WebCredential credential(info.id, info.name, info.avatarURL);
+  callbacks->onSuccess(&credential);
+  request_callbacks_.Remove(request_id);
+}
+
+// -----------------------------------------------------------------------------
+// Dispatch messages from the renderer to the browser.
+
+void CredentialManagerDispatcher::dispatchFailedSignIn(const blink::WebCredential& credential, NotificationCallbacks* callbacks) {
+  int request_id = failed_sign_in_callbacks_.Add(callbacks);
+  CredentialManagerCredentialInfo info(credential.id(), credential.name(), credential.avatarURL());
+  content::RenderThread::Get()->Send(new CredentialManagerHostMsg_NotifyFailedSignIn(routing_id_, request_id, info));
+}
+
+void CredentialManagerDispatcher::dispatchSignedIn(const blink::WebCredential& credential, NotificationCallbacks* callbacks) {
+  int request_id = signed_in_callbacks_.Add(callbacks);
+  CredentialManagerCredentialInfo info(credential.id(), credential.name(), credential.avatarURL());
+  content::RenderThread::Get()->Send(new CredentialManagerHostMsg_NotifySignedIn(routing_id_, request_id, info));
+}
+
+void CredentialManagerDispatcher::dispatchSignedOut(NotificationCallbacks* callbacks) {
+  int request_id = signed_out_callbacks_.Add(callbacks);
+  content::RenderThread::Get()->Send(new CredentialManagerHostMsg_NotifySignedOut(routing_id_, request_id));
+}
+
+void CredentialManagerDispatcher::dispatchRequest(bool zeroClickOnly, const blink::WebVector<blink::WebURL>& federations, RequestCallbacks* callbacks) {
+  int request_id = request_callbacks_.Add(callbacks);
+  std::vector<GURL> federationVector;
+  for (size_t i = 0; i < federations.size() && i < kMaxNumFederations; i++)
+    federationVector.push_back(federations[i]);
+  content::RenderThread::Get()->Send(new CredentialManagerHostMsg_Request(routing_id_, request_id, zeroClickOnly, federationVector));
+}
+
+} // namespace password_manager