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// 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 "chrome/browser/devtools/remote_debugging_server.h"
#include <utility>
#include "base/lazy_instance.h"
#include "base/macros.h"
#include "base/path_service.h"
#include "base/strings/string_number_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/devtools/devtools_window.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/common/chrome_paths.h"
#include "content/public/browser/devtools_agent_host.h"
#include "content/public/browser/devtools_socket_factory.h"
#include "content/public/common/content_switches.h"
#include "net/base/net_errors.h"
#include "net/log/net_log_source.h"
#include "net/socket/tcp_server_socket.h"
#include "third_party/blink/public/public_buildflags.h"
#include "ui/base/resource/resource_bundle.h"
namespace {
base::LazyInstance<bool>::Leaky g_tethering_enabled = LAZY_INSTANCE_INITIALIZER;
const uint16_t kMinTetheringPort = 9333;
const uint16_t kMaxTetheringPort = 9444;
const int kBackLog = 10;
class TCPServerSocketFactory
: public content::DevToolsSocketFactory {
public:
explicit TCPServerSocketFactory(uint16_t port)
: port_(port), last_tethering_port_(kMinTetheringPort) {}
private:
std::unique_ptr<net::ServerSocket> CreateLocalHostServerSocket(int port) {
std::unique_ptr<net::ServerSocket> socket(
new net::TCPServerSocket(nullptr, net::NetLogSource()));
if (socket->ListenWithAddressAndPort(
"127.0.0.1", port, kBackLog) == net::OK)
return socket;
if (socket->ListenWithAddressAndPort("::1", port, kBackLog) == net::OK)
return socket;
return std::unique_ptr<net::ServerSocket>();
}
// content::DevToolsSocketFactory.
std::unique_ptr<net::ServerSocket> CreateForHttpServer() override {
std::unique_ptr<net::ServerSocket> socket(
new net::TCPServerSocket(nullptr, net::NetLogSource()));
return CreateLocalHostServerSocket(port_);
}
std::unique_ptr<net::ServerSocket> CreateForTethering(
std::string* name) override {
if (!g_tethering_enabled.Get())
return std::unique_ptr<net::ServerSocket>();
if (last_tethering_port_ == kMaxTetheringPort)
last_tethering_port_ = kMinTetheringPort;
uint16_t port = ++last_tethering_port_;
*name = base::UintToString(port);
return CreateLocalHostServerSocket(port);
}
std::string address_;
uint16_t port_;
uint16_t last_tethering_port_;
DISALLOW_COPY_AND_ASSIGN(TCPServerSocketFactory);
};
} // namespace
// static
void RemoteDebuggingServer::EnableTetheringForDebug() {
g_tethering_enabled.Get() = true;
}
RemoteDebuggingServer::RemoteDebuggingServer() {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kRemoteDebuggingPipe)) {
content::DevToolsAgentHost::StartRemoteDebuggingPipeHandler();
return;
}
std::string port_str =
command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
int port;
if (!base::StringToInt(port_str, &port) || port < 0 || port >= 65535)
return;
base::FilePath output_dir;
if (!port) {
// The client requested an ephemeral port. Must write the selected
// port to a well-known location in the profile directory to
// bootstrap the connection process.
bool result = base::PathService::Get(chrome::DIR_USER_DATA, &output_dir);
DCHECK(result);
}
base::FilePath debug_frontend_dir;
#if BUILDFLAG(DEBUG_DEVTOOLS)
base::PathService::Get(chrome::DIR_INSPECTOR_DEBUG, &debug_frontend_dir);
#endif
content::DevToolsAgentHost::StartRemoteDebuggingServer(
std::make_unique<TCPServerSocketFactory>(port), output_dir,
debug_frontend_dir);
}
RemoteDebuggingServer::~RemoteDebuggingServer() {
// Ensure Profile is alive, because the whole DevTools subsystem
// accesses it during shutdown.
DCHECK(g_browser_process->profile_manager());
content::DevToolsAgentHost::StopRemoteDebuggingServer();
content::DevToolsAgentHost::StopRemoteDebuggingPipeHandler();
}
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