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// 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 "android_webview/native/aw_dev_tools_server.h"
#include <utility>
#include "android_webview/common/aw_content_client.h"
#include "android_webview/native/aw_contents.h"
#include "base/bind.h"
#include "base/files/file_path.h"
#include "base/json/json_writer.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "components/devtools_http_handler/devtools_http_handler.h"
#include "components/devtools_http_handler/devtools_http_handler_delegate.h"
#include "content/public/browser/android/devtools_auth.h"
#include "content/public/browser/devtools_agent_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/user_agent.h"
#include "jni/AwDevToolsServer_jni.h"
#include "net/base/net_errors.h"
#include "net/socket/unix_domain_server_socket_posix.h"
using content::DevToolsAgentHost;
using content::RenderViewHost;
using content::WebContents;
using devtools_http_handler::DevToolsHttpHandler;
namespace {
const char kFrontEndURL[] =
"http://chrome-devtools-frontend.appspot.com/serve_rev/%s/inspector.html";
const char kSocketNameFormat[] = "webview_devtools_remote_%d";
const char kTetheringSocketName[] = "webview_devtools_tethering_%d_%d";
const int kBackLog = 10;
// Delegate implementation for the devtools http handler for WebView. A new
// instance of this gets created each time web debugging is enabled.
class AwDevToolsServerDelegate :
public devtools_http_handler::DevToolsHttpHandlerDelegate {
public:
AwDevToolsServerDelegate() {
}
~AwDevToolsServerDelegate() override {}
// devtools_http_handler::DevToolsHttpHandlerDelegate implementation.
std::string GetDiscoveryPageHTML() override;
std::string GetFrontendResource(const std::string& path) override;
std::string GetPageThumbnailData(const GURL&) override;
content::DevToolsExternalAgentProxyDelegate*
HandleWebSocketConnection(const std::string& path) override;
private:
DISALLOW_COPY_AND_ASSIGN(AwDevToolsServerDelegate);
};
std::string AwDevToolsServerDelegate::GetDiscoveryPageHTML() {
const char html[] =
"<html>"
"<head><title>WebView remote debugging</title></head>"
"<body>Please use <a href=\'chrome://inspect\'>chrome://inspect</a>"
"</body>"
"</html>";
return html;
}
std::string AwDevToolsServerDelegate::GetFrontendResource(
const std::string& path) {
return std::string();
}
std::string AwDevToolsServerDelegate::GetPageThumbnailData(const GURL&) {
return std::string();
}
content::DevToolsExternalAgentProxyDelegate*
AwDevToolsServerDelegate::HandleWebSocketConnection(const std::string& path) {
return nullptr;
}
// Factory for UnixDomainServerSocket.
class UnixDomainServerSocketFactory
: public DevToolsHttpHandler::ServerSocketFactory {
public:
explicit UnixDomainServerSocketFactory(const std::string& socket_name)
: socket_name_(socket_name),
last_tethering_socket_(0) {
}
private:
// devtools_http_handler::DevToolsHttpHandler::ServerSocketFactory.
scoped_ptr<net::ServerSocket> CreateForHttpServer() override {
scoped_ptr<net::UnixDomainServerSocket> socket(
new net::UnixDomainServerSocket(
base::Bind(&content::CanUserConnectToDevTools),
true /* use_abstract_namespace */));
if (socket->BindAndListen(socket_name_, kBackLog) != net::OK)
return scoped_ptr<net::ServerSocket>();
return std::move(socket);
}
scoped_ptr<net::ServerSocket> CreateForTethering(std::string* name) override {
*name = base::StringPrintf(
kTetheringSocketName, getpid(), ++last_tethering_socket_);
scoped_ptr<net::UnixDomainServerSocket> socket(
new net::UnixDomainServerSocket(
base::Bind(&content::CanUserConnectToDevTools),
true /* use_abstract_namespace */));
if (socket->BindAndListen(*name, kBackLog) != net::OK)
return scoped_ptr<net::ServerSocket>();
return std::move(socket);
}
std::string socket_name_;
int last_tethering_socket_;
DISALLOW_COPY_AND_ASSIGN(UnixDomainServerSocketFactory);
};
} // namespace
namespace android_webview {
AwDevToolsServer::AwDevToolsServer() {
}
AwDevToolsServer::~AwDevToolsServer() {
Stop();
}
void AwDevToolsServer::Start() {
if (devtools_http_handler_)
return;
scoped_ptr<DevToolsHttpHandler::ServerSocketFactory> factory(
new UnixDomainServerSocketFactory(
base::StringPrintf(kSocketNameFormat, getpid())));
devtools_http_handler_.reset(new DevToolsHttpHandler(
std::move(factory),
base::StringPrintf(kFrontEndURL, content::GetWebKitRevision().c_str()),
new AwDevToolsServerDelegate(), base::FilePath(), base::FilePath(),
GetProduct(), GetUserAgent()));
}
void AwDevToolsServer::Stop() {
devtools_http_handler_.reset();
}
bool AwDevToolsServer::IsStarted() const {
return !!devtools_http_handler_;
}
bool RegisterAwDevToolsServer(JNIEnv* env) {
return RegisterNativesImpl(env);
}
static jlong InitRemoteDebugging(JNIEnv* env,
const JavaParamRef<jobject>& obj) {
AwDevToolsServer* server = new AwDevToolsServer();
return reinterpret_cast<intptr_t>(server);
}
static void DestroyRemoteDebugging(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jlong server) {
delete reinterpret_cast<AwDevToolsServer*>(server);
}
static void SetRemoteDebuggingEnabled(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jlong server,
jboolean enabled) {
AwDevToolsServer* devtools_server =
reinterpret_cast<AwDevToolsServer*>(server);
if (enabled) {
devtools_server->Start();
} else {
devtools_server->Stop();
}
}
} // namespace android_webview
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