| // 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 "content/browser/manifest/manifest_manager_host.h" |
| |
| #include "content/common/manifest_manager_messages.h" |
| #include "content/public/browser/render_frame_host.h" |
| #include "content/public/browser/render_process_host.h" |
| #include "content/public/common/manifest.h" |
| #include "content/public/common/result_codes.h" |
| |
| namespace content { |
| |
| namespace { |
| |
| void KillRenderer(RenderFrameHost* render_frame_host) { |
| base::ProcessHandle process_handle = |
| render_frame_host->GetProcess()->GetHandle(); |
| if (process_handle == base::kNullProcessHandle) |
| return; |
| base::KillProcess(process_handle, RESULT_CODE_KILLED_BAD_MESSAGE, false); |
| } |
| |
| } // anonymous namespace |
| |
| ManifestManagerHost::ManifestManagerHost(WebContents* web_contents) |
| : WebContentsObserver(web_contents) { |
| } |
| |
| ManifestManagerHost::~ManifestManagerHost() { |
| } |
| |
| ManifestManagerHost::CallbackMap* ManifestManagerHost::GetCallbackMapForFrame( |
| RenderFrameHost* render_frame_host) { |
| FrameCallbackMap::iterator it = pending_callbacks_.find(render_frame_host); |
| return it != pending_callbacks_.end() ? it->second : 0; |
| } |
| |
| void ManifestManagerHost::RenderFrameDeleted( |
| RenderFrameHost* render_frame_host) { |
| CallbackMap* callbacks = GetCallbackMapForFrame(render_frame_host); |
| if (!callbacks) |
| return; |
| |
| // Before deleting the callbacks, make sure they are called with a failure |
| // state. |
| CallbackMap::const_iterator it(callbacks); |
| for (; !it.IsAtEnd(); it.Advance()) |
| it.GetCurrentValue()->Run(Manifest()); |
| |
| pending_callbacks_.erase(render_frame_host); |
| } |
| |
| void ManifestManagerHost::GetManifest(RenderFrameHost* render_frame_host, |
| const GetManifestCallback& callback) { |
| CallbackMap* callbacks = GetCallbackMapForFrame(render_frame_host); |
| if (!callbacks) { |
| callbacks = new CallbackMap(); |
| pending_callbacks_[render_frame_host] = callbacks; |
| } |
| |
| int request_id = callbacks->Add(new GetManifestCallback(callback)); |
| |
| render_frame_host->Send(new ManifestManagerMsg_RequestManifest( |
| render_frame_host->GetRoutingID(), request_id)); |
| } |
| |
| bool ManifestManagerHost::OnMessageReceived( |
| const IPC::Message& message, RenderFrameHost* render_frame_host) { |
| bool handled = true; |
| |
| IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(ManifestManagerHost, message, |
| render_frame_host) |
| IPC_MESSAGE_HANDLER(ManifestManagerHostMsg_RequestManifestResponse, |
| OnRequestManifestResponse) |
| IPC_MESSAGE_UNHANDLED(handled = false) |
| IPC_END_MESSAGE_MAP() |
| |
| return handled; |
| } |
| |
| void ManifestManagerHost::OnRequestManifestResponse( |
| RenderFrameHost* render_frame_host, |
| int request_id, |
| const Manifest& insecure_manifest) { |
| CallbackMap* callbacks = GetCallbackMapForFrame(render_frame_host); |
| if (!callbacks) { |
| DVLOG(1) << "Unexpected RequestManifestResponse to from renderer. " |
| "Killing renderer."; |
| KillRenderer(render_frame_host); |
| return; |
| } |
| |
| GetManifestCallback* callback = callbacks->Lookup(request_id); |
| if (!callback) { |
| DVLOG(1) << "Received a request_id (" << request_id << ") from renderer " |
| "with no associated callback. Killing renderer."; |
| KillRenderer(render_frame_host); |
| return; |
| } |
| |
| // When receiving a Manifest, the browser process can't trust that it is |
| // coming from a known and secure source. It must be processed accordingly. |
| Manifest manifest = insecure_manifest; |
| manifest.name = base::NullableString16( |
| manifest.name.string().substr(0, Manifest::kMaxIPCStringLength), |
| manifest.name.is_null()); |
| manifest.short_name = base::NullableString16( |
| manifest.short_name.string().substr(0, Manifest::kMaxIPCStringLength), |
| manifest.short_name.is_null()); |
| |
| callback->Run(manifest); |
| callbacks->Remove(request_id); |
| if (callbacks->IsEmpty()) { |
| delete callbacks; |
| pending_callbacks_.erase(render_frame_host); |
| } |
| } |
| |
| } // namespace content |