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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/host/host_event_logger.h"
#include <windows.h>
#include <stddef.h>
#include <memory>
#include <string>
#include <vector>
#include "base/logging.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/utf_string_conversions.h"
#include "net/base/ip_endpoint.h"
#include "remoting/host/host_status_monitor.h"
#include "remoting/host/host_status_observer.h"
#include "remoting/host/win/remoting_host_messages.h"
#include "remoting/host/win/windows_event_logger.h"
#include "remoting/protocol/transport.h"
namespace remoting {
namespace {
class HostEventLoggerWin : public HostEventLogger, public HostStatusObserver {
public:
HostEventLoggerWin(scoped_refptr<HostStatusMonitor> monitor,
const std::string& application_name);
HostEventLoggerWin(const HostEventLoggerWin&) = delete;
HostEventLoggerWin& operator=(const HostEventLoggerWin&) = delete;
~HostEventLoggerWin() override;
// HostStatusObserver implementation. These methods will be called from the
// network thread.
void OnClientAuthenticated(const std::string& signaling_id) override;
void OnClientDisconnected(const std::string& signaling_id) override;
void OnClientAccessDenied(const std::string& signaling_id) override;
void OnClientRouteChange(const std::string& signaling_id,
const std::string& channel_name,
const protocol::TransportRoute& route) override;
void OnHostStarted(const std::string& user_email) override;
void OnHostShutdown() override;
private:
void LogString(WORD type, DWORD event_id, const std::string& string);
void Log(WORD type, DWORD event_id, const std::vector<std::string>& strings);
scoped_refptr<HostStatusMonitor> monitor_;
WindowsEventLogger event_logger_;
};
} // namespace
HostEventLoggerWin::HostEventLoggerWin(scoped_refptr<HostStatusMonitor> monitor,
const std::string& application_name)
: monitor_(monitor), event_logger_(application_name) {
if (event_logger_.IsRegistered()) {
monitor_->AddStatusObserver(this);
} else {
PLOG(ERROR) << "Failed to register the event source: " << application_name;
}
}
HostEventLoggerWin::~HostEventLoggerWin() {
if (event_logger_.IsRegistered()) {
monitor_->RemoveStatusObserver(this);
}
}
void HostEventLoggerWin::OnClientAuthenticated(
const std::string& signaling_id) {
LogString(EVENTLOG_INFORMATION_TYPE, MSG_HOST_CLIENT_CONNECTED, signaling_id);
}
void HostEventLoggerWin::OnClientDisconnected(const std::string& signaling_id) {
LogString(EVENTLOG_INFORMATION_TYPE, MSG_HOST_CLIENT_DISCONNECTED,
signaling_id);
}
void HostEventLoggerWin::OnClientAccessDenied(const std::string& signaling_id) {
LogString(EVENTLOG_ERROR_TYPE, MSG_HOST_CLIENT_ACCESS_DENIED, signaling_id);
}
void HostEventLoggerWin::OnClientRouteChange(
const std::string& signaling_id,
const std::string& channel_name,
const protocol::TransportRoute& route) {
std::vector<std::string> strings(5);
strings[0] = signaling_id;
strings[1] = route.remote_address.address().IsValid()
? route.remote_address.ToString()
: "unknown";
strings[2] = route.local_address.address().IsValid()
? route.local_address.ToString()
: "unknown";
strings[3] = channel_name;
strings[4] = protocol::TransportRoute::GetTypeString(route.type);
Log(EVENTLOG_INFORMATION_TYPE, MSG_HOST_CLIENT_ROUTING_CHANGED, strings);
}
void HostEventLoggerWin::OnHostShutdown() {
// TODO(rmsousa): Fix host shutdown to actually call this, and add a log line.
}
void HostEventLoggerWin::OnHostStarted(const std::string& user_email) {
LogString(EVENTLOG_INFORMATION_TYPE, MSG_HOST_STARTED, user_email);
}
void HostEventLoggerWin::Log(WORD type,
DWORD event_id,
const std::vector<std::string>& strings) {
if (!event_logger_.Log(type, event_id, strings)) {
PLOG(ERROR) << "Failed to write an event to the event log";
}
}
void HostEventLoggerWin::LogString(WORD type,
DWORD event_id,
const std::string& string) {
std::vector<std::string> strings;
strings.push_back(string);
Log(type, event_id, strings);
}
// static
std::unique_ptr<HostEventLogger> HostEventLogger::Create(
scoped_refptr<HostStatusMonitor> monitor,
const std::string& application_name) {
return std::make_unique<HostEventLoggerWin>(monitor, application_name);
}
} // namespace remoting
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