| // Copyright (c) 2012 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/devtools/devtools_agent_host_impl.h" |
| |
| #include <map> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/json/json_writer.h" |
| #include "base/lazy_instance.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/observer_list.h" |
| #include "content/browser/devtools/devtools_manager.h" |
| #include "content/browser/devtools/devtools_session.h" |
| #include "content/browser/devtools/forwarding_agent_host.h" |
| #include "content/browser/devtools/protocol/page.h" |
| #include "content/browser/devtools/render_frame_devtools_agent_host.h" |
| #include "content/browser/devtools/service_worker_devtools_agent_host.h" |
| #include "content/browser/devtools/service_worker_devtools_manager.h" |
| #include "content/browser/devtools/shared_worker_devtools_agent_host.h" |
| #include "content/browser/devtools/shared_worker_devtools_manager.h" |
| #include "content/browser/loader/netlog_observer.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/content_browser_client.h" |
| |
| namespace content { |
| |
| namespace { |
| typedef std::map<std::string, DevToolsAgentHostImpl*> Instances; |
| base::LazyInstance<Instances>::Leaky g_instances = LAZY_INSTANCE_INITIALIZER; |
| |
| base::LazyInstance<base::ObserverList<DevToolsAgentHostObserver>>::Leaky |
| g_observers = LAZY_INSTANCE_INITIALIZER; |
| } // namespace |
| |
| char DevToolsAgentHost::kTypePage[] = "page"; |
| char DevToolsAgentHost::kTypeFrame[] = "iframe"; |
| char DevToolsAgentHost::kTypeSharedWorker[] = "shared_worker"; |
| char DevToolsAgentHost::kTypeServiceWorker[] = "service_worker"; |
| char DevToolsAgentHost::kTypeExternal[] = "external"; |
| char DevToolsAgentHost::kTypeBrowser[] = "browser"; |
| char DevToolsAgentHost::kTypeOther[] = "other"; |
| int DevToolsAgentHostImpl::s_attached_count_ = 0; |
| int DevToolsAgentHostImpl::s_force_creation_count_ = 0; |
| |
| // static |
| std::string DevToolsAgentHost::GetProtocolVersion() { |
| // TODO(dgozman): generate this. |
| return "1.2"; |
| } |
| |
| // static |
| bool DevToolsAgentHost::IsSupportedProtocolVersion(const std::string& version) { |
| // TODO(dgozman): generate this. |
| return version == "1.0" || version == "1.1" || version == "1.2"; |
| } |
| |
| // static |
| DevToolsAgentHost::List DevToolsAgentHost::GetOrCreateAll() { |
| List result; |
| SharedWorkerDevToolsAgentHost::List shared_list; |
| SharedWorkerDevToolsManager::GetInstance()->AddAllAgentHosts(&shared_list); |
| for (const auto& host : shared_list) |
| result.push_back(host); |
| |
| ServiceWorkerDevToolsAgentHost::List service_list; |
| ServiceWorkerDevToolsManager::GetInstance()->AddAllAgentHosts(&service_list); |
| for (const auto& host : service_list) |
| result.push_back(host); |
| |
| RenderFrameDevToolsAgentHost::AddAllAgentHosts(&result); |
| |
| #if DCHECK_IS_ON() |
| for (auto it : result) { |
| DevToolsAgentHostImpl* host = static_cast<DevToolsAgentHostImpl*>(it.get()); |
| DCHECK(g_instances.Get().find(host->id_) != g_instances.Get().end()); |
| } |
| #endif |
| |
| return result; |
| } |
| |
| // Called on the UI thread. |
| // static |
| scoped_refptr<DevToolsAgentHost> DevToolsAgentHost::GetForWorker( |
| int worker_process_id, |
| int worker_route_id) { |
| if (scoped_refptr<DevToolsAgentHost> host = |
| SharedWorkerDevToolsManager::GetInstance() |
| ->GetDevToolsAgentHostForWorker(worker_process_id, |
| worker_route_id)) { |
| return host; |
| } |
| return ServiceWorkerDevToolsManager::GetInstance() |
| ->GetDevToolsAgentHostForWorker(worker_process_id, worker_route_id); |
| } |
| |
| DevToolsAgentHostImpl::DevToolsAgentHostImpl(const std::string& id) |
| : id_(id), |
| last_session_id_(0) { |
| DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| } |
| |
| DevToolsAgentHostImpl::~DevToolsAgentHostImpl() { |
| DCHECK_CURRENTLY_ON(BrowserThread::UI); |
| NotifyDestroyed(); |
| } |
| |
| // static |
| scoped_refptr<DevToolsAgentHost> DevToolsAgentHost::GetForId( |
| const std::string& id) { |
| if (g_instances == NULL) |
| return NULL; |
| Instances::iterator it = g_instances.Get().find(id); |
| if (it == g_instances.Get().end()) |
| return NULL; |
| return it->second; |
| } |
| |
| // static |
| scoped_refptr<DevToolsAgentHost> DevToolsAgentHost::Forward( |
| const std::string& id, |
| std::unique_ptr<DevToolsExternalAgentProxyDelegate> delegate) { |
| scoped_refptr<DevToolsAgentHost> result = DevToolsAgentHost::GetForId(id); |
| if (result) |
| return result; |
| return new ForwardingAgentHost(id, std::move(delegate)); |
| } |
| |
| bool DevToolsAgentHostImpl::InnerAttachClient(DevToolsAgentHostClient* client, |
| bool force) { |
| if (session_ && !force) |
| return false; |
| |
| scoped_refptr<DevToolsAgentHostImpl> protect(this); |
| if (session_) |
| ForceDetach(true); |
| session_.reset(new DevToolsSession(this, client, ++last_session_id_)); |
| AttachSession(session_.get()); |
| NotifyAttached(); |
| return true; |
| } |
| |
| bool DevToolsAgentHostImpl::AttachClient(DevToolsAgentHostClient* client) { |
| return InnerAttachClient(client, false); |
| } |
| |
| void DevToolsAgentHostImpl::ForceAttachClient(DevToolsAgentHostClient* client) { |
| InnerAttachClient(client, true); |
| } |
| |
| bool DevToolsAgentHostImpl::DetachClient(DevToolsAgentHostClient* client) { |
| if (!session_ || session_->client() != client) |
| return false; |
| |
| scoped_refptr<DevToolsAgentHostImpl> protect(this); |
| InnerDetachClient(); |
| return true; |
| } |
| |
| bool DevToolsAgentHostImpl::DispatchProtocolMessage( |
| DevToolsAgentHostClient* client, |
| const std::string& message) { |
| if (!session_ || session_->client() != client) |
| return false; |
| return DispatchProtocolMessage(session_.get(), message); |
| } |
| |
| void DevToolsAgentHostImpl::InnerDetachClient() { |
| int session_id = session_->session_id(); |
| session_.reset(); |
| DetachSession(session_id); |
| io_context_.DiscardAllStreams(); |
| NotifyDetached(); |
| } |
| |
| bool DevToolsAgentHostImpl::IsAttached() { |
| return !!session_; |
| } |
| |
| void DevToolsAgentHostImpl::InspectElement( |
| DevToolsAgentHostClient* client, |
| int x, |
| int y) { |
| if (!session_ || session_->client() != client) |
| return; |
| InspectElement(session_.get(), x, y); |
| } |
| |
| std::string DevToolsAgentHostImpl::GetId() { |
| return id_; |
| } |
| |
| std::string DevToolsAgentHostImpl::GetParentId() { |
| return ""; |
| } |
| |
| std::string DevToolsAgentHostImpl::GetDescription() { |
| return ""; |
| } |
| |
| GURL DevToolsAgentHostImpl::GetFaviconURL() { |
| return GURL(); |
| } |
| |
| std::string DevToolsAgentHostImpl::GetFrontendURL() { |
| return std::string(); |
| } |
| |
| base::TimeTicks DevToolsAgentHostImpl::GetLastActivityTime() { |
| return base::TimeTicks(); |
| } |
| |
| BrowserContext* DevToolsAgentHostImpl::GetBrowserContext() { |
| return nullptr; |
| } |
| |
| WebContents* DevToolsAgentHostImpl::GetWebContents() { |
| return NULL; |
| } |
| |
| void DevToolsAgentHostImpl::DisconnectWebContents() { |
| } |
| |
| void DevToolsAgentHostImpl::ConnectWebContents(WebContents* wc) { |
| } |
| |
| bool DevToolsAgentHostImpl::Inspect() { |
| DevToolsManager* manager = DevToolsManager::GetInstance(); |
| if (manager->delegate()) { |
| manager->delegate()->Inspect(this); |
| return true; |
| } |
| return false; |
| } |
| |
| void DevToolsAgentHostImpl::ForceDetach(bool replaced) { |
| if (!session_) |
| return; |
| scoped_refptr<DevToolsAgentHostImpl> protect(this); |
| // Clear |client_| before notifying it. |
| DevToolsAgentHostClient* client = session_->client(); |
| InnerDetachClient(); |
| client->AgentHostClosed(this, replaced); |
| } |
| |
| void DevToolsAgentHostImpl::InspectElement( |
| DevToolsSession* session, |
| int x, |
| int y) { |
| } |
| |
| void DevToolsAgentHostImpl::SendMessageToClient(int session_id, |
| const std::string& message) { |
| // Filter any messages from previous sessions. |
| if (!session_ || session_id != session_->session_id()) |
| return; |
| session_->client()->DispatchProtocolMessage(this, message); |
| } |
| |
| // static |
| void DevToolsAgentHost::DetachAllClients() { |
| if (g_instances == NULL) |
| return; |
| |
| // Make a copy, since detaching may lead to agent destruction, which |
| // removes it from the instances. |
| Instances copy = g_instances.Get(); |
| for (Instances::iterator it(copy.begin()); it != copy.end(); ++it) { |
| DevToolsAgentHostImpl* agent_host = it->second; |
| agent_host->ForceDetach(true); |
| } |
| } |
| |
| // static |
| void DevToolsAgentHost::AddObserver(DevToolsAgentHostObserver* observer) { |
| if (observer->ShouldForceDevToolsAgentHostCreation()) { |
| if (!DevToolsAgentHostImpl::s_force_creation_count_) { |
| // Force all agent hosts when first observer is added. |
| DevToolsAgentHost::GetOrCreateAll(); |
| } |
| DevToolsAgentHostImpl::s_force_creation_count_++; |
| } |
| |
| g_observers.Get().AddObserver(observer); |
| for (const auto& id_host : g_instances.Get()) |
| observer->DevToolsAgentHostCreated(id_host.second); |
| } |
| |
| // static |
| void DevToolsAgentHost::RemoveObserver(DevToolsAgentHostObserver* observer) { |
| if (observer->ShouldForceDevToolsAgentHostCreation()) |
| DevToolsAgentHostImpl::s_force_creation_count_--; |
| g_observers.Get().RemoveObserver(observer); |
| } |
| |
| // static |
| bool DevToolsAgentHostImpl::ShouldForceCreation() { |
| return !!s_force_creation_count_; |
| } |
| |
| void DevToolsAgentHostImpl::NotifyCreated() { |
| DCHECK(g_instances.Get().find(id_) == g_instances.Get().end()); |
| g_instances.Get()[id_] = this; |
| for (auto& observer : g_observers.Get()) |
| observer.DevToolsAgentHostCreated(this); |
| } |
| |
| void DevToolsAgentHostImpl::NotifyAttached() { |
| if (!s_attached_count_) { |
| BrowserThread::PostTask( |
| BrowserThread::IO, |
| FROM_HERE, |
| base::Bind(&NetLogObserver::Attach, |
| GetContentClient()->browser()->GetNetLog())); |
| } |
| ++s_attached_count_; |
| |
| for (auto& observer : g_observers.Get()) |
| observer.DevToolsAgentHostAttached(this); |
| } |
| |
| void DevToolsAgentHostImpl::NotifyDetached() { |
| --s_attached_count_; |
| if (!s_attached_count_) { |
| BrowserThread::PostTask( |
| BrowserThread::IO, |
| FROM_HERE, |
| base::Bind(&NetLogObserver::Detach)); |
| } |
| |
| for (auto& observer : g_observers.Get()) |
| observer.DevToolsAgentHostDetached(this); |
| } |
| |
| void DevToolsAgentHostImpl::NotifyDestroyed() { |
| DCHECK(g_instances.Get().find(id_) != g_instances.Get().end()); |
| for (auto& observer : g_observers.Get()) |
| observer.DevToolsAgentHostDestroyed(this); |
| g_instances.Get().erase(id_); |
| } |
| |
| // DevToolsMessageChunkProcessor ----------------------------------------------- |
| |
| DevToolsMessageChunkProcessor::DevToolsMessageChunkProcessor( |
| const SendMessageCallback& callback) |
| : callback_(callback), |
| message_buffer_size_(0), |
| last_call_id_(0) { |
| } |
| |
| DevToolsMessageChunkProcessor::~DevToolsMessageChunkProcessor() { |
| } |
| |
| bool DevToolsMessageChunkProcessor::ProcessChunkedMessageFromAgent( |
| const DevToolsMessageChunk& chunk) { |
| if (chunk.is_last && !chunk.post_state.empty()) |
| state_cookie_ = chunk.post_state; |
| if (chunk.is_last) |
| last_call_id_ = chunk.call_id; |
| |
| if (chunk.is_first && chunk.is_last) { |
| if (message_buffer_size_ != 0) |
| return false; |
| callback_.Run(chunk.session_id, chunk.data); |
| return true; |
| } |
| |
| if (chunk.is_first) { |
| message_buffer_ = std::string(); |
| message_buffer_.reserve(chunk.message_size); |
| message_buffer_size_ = chunk.message_size; |
| } |
| |
| if (message_buffer_.size() + chunk.data.size() > message_buffer_size_) |
| return false; |
| message_buffer_.append(chunk.data); |
| |
| if (chunk.is_last) { |
| if (message_buffer_.size() != message_buffer_size_) |
| return false; |
| callback_.Run(chunk.session_id, message_buffer_); |
| message_buffer_ = std::string(); |
| message_buffer_size_ = 0; |
| } |
| return true; |
| } |
| |
| } // namespace content |