Files
2dust_v2rayN/v2rayN/v2rayN/Handler/StatisticsHandler.cs
T
2019-09-20 13:18:38 +08:00

444 lines
15 KiB
C#

using Grpc.Core;
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using v2rayN.Mode;
using v2rayN.Protos.Statistics;
namespace v2rayN.Handler
{
class StatisticsHandler
{
private Mode.Config config_;
private Channel channel_;
private StatsService.StatsServiceClient client_;
private Thread workThread_;
Action<ulong, ulong, ulong, ulong, List<Mode.ServerStatistics>> updateFunc_;
private bool enabled_;
public bool Enable
{
get
{
return enabled_;
}
set
{
enabled_ = value;
}
}
public bool UpdateUI;
public ulong TotalUp
{
get; private set;
}
public ulong TotalDown
{
get; private set;
}
public List<Mode.ServerStatistics> Statistic
{
get; set;
}
public ulong Up
{
get; private set;
}
public ulong Down
{
get; private set;
}
private string logPath_;
private bool exitFlag_; // true to close workThread_
public StatisticsHandler(Mode.Config config, Action<ulong, ulong, ulong, ulong, List<Mode.ServerStatistics>> update)
{
config_ = config;
enabled_ = config.enableStatistics;
UpdateUI = false;
updateFunc_ = update;
logPath_ = Utils.GetPath($"{Global.StatisticLogDirectory}\\");
Statistic = new List<Mode.ServerStatistics>();
exitFlag_ = false;
DeleteExpiredLog();
foreach (var server in config.vmess)
{
var statistic = new ServerStatistics(server.remarks, server.address, server.port, server.path, server.requestHost, 0, 0, 0, 0);
Statistic.Add(statistic);
}
LoadFromFile();
GrpcInit();
workThread_ = new Thread(new ThreadStart(Run));
workThread_.Start();
}
private void GrpcInit()
{
if (channel_ == null)
{
Global.statePort = GetFreePort();
channel_ = new Channel($"127.0.0.1:{Global.statePort}", ChannelCredentials.Insecure);
channel_.ConnectAsync();
client_ = new StatsService.StatsServiceClient(channel_);
}
}
public void Close()
{
try
{
exitFlag_ = true;
channel_.ShutdownAsync();
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
}
public void Run()
{
while (!exitFlag_)
{
try
{
if (enabled_ && channel_.State == ChannelState.Ready)
{
QueryStatsResponse res = null;
try
{
res = client_.QueryStats(new QueryStatsRequest() { Pattern = "", Reset = true });
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
if (res != null)
{
var addr = config_.address();
var port = config_.port();
var path = config_.path();
var cur = Statistic.FindIndex(item => item.address == addr && item.port == port && item.path == path);
ulong up = 0,
down = 0;
//TODO: parse output
ParseOutput(res.Stat, out up, out down);
Up = up;
Down = down;
TotalUp += up;
TotalDown += down;
if (cur != -1)
{
Statistic[cur].todayUp += up;
Statistic[cur].todayDown += down;
Statistic[cur].totalUp += up;
Statistic[cur].totalDown += down;
}
if (UpdateUI)
updateFunc_(TotalUp, TotalDown, Up, Down, Statistic);
}
}
Thread.Sleep(config_.statisticsFreshRate);
channel_.ConnectAsync();
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
}
}
public void ParseOutput(Google.Protobuf.Collections.RepeatedField<Stat> source, out ulong up, out ulong down)
{
up = 0; down = 0;
try
{
foreach (var stat in source)
{
var name = stat.Name;
var value = stat.Value;
var nStr = name.Split(">>>".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
var type = "";
name = name.Trim();
name = nStr[1];
type = nStr[3];
if (name == Global.InboundProxyTagName)
{
if (type == "uplink")
{
up = (ulong)value;
}
else if (type == "downlink")
{
down = (ulong)value;
}
}
}
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
}
public void SaveToFile()
{
if (!Directory.Exists(logPath_))
{
Directory.CreateDirectory(logPath_);
}
// 总流量统计文件
var overallPath = Path.Combine(logPath_, Global.StatisticLogOverall);
if (!File.Exists(overallPath))
{
File.Create(overallPath);
}
try
{
using (var overallWriter = new StreamWriter(overallPath))
{
double up_amount, down_amount;
string up_unit, down_unit;
Utils.ToHumanReadable(TotalUp, out up_amount, out up_unit);
Utils.ToHumanReadable(TotalDown, out down_amount, out down_unit);
overallWriter.WriteLine($"LastUpdate {DateTime.Now.ToString("yyyyMMdd")} {DateTime.Now.ToLongTimeString()}");
overallWriter.WriteLine($"UP {string.Format("{0:f2}", up_amount)}{up_unit} {TotalUp}");
overallWriter.WriteLine($"DOWN {string.Format("{0:f2}", down_amount)}{down_unit} {TotalDown}");
foreach (var s in Statistic)
{
overallWriter.WriteLine($"* {s.name} {s.address} {s.port} {s.path} {s.host} {s.totalUp} {s.totalDown}");
}
}
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
// 当天流量记录文件
var dailyPath = Path.Combine(logPath_, $"{DateTime.Now.ToString("yyyyMMdd")}.txt");
if (!File.Exists(dailyPath))
{
File.Create(dailyPath);
}
try
{
using (var dailyWriter = new StreamWriter(dailyPath))
{
dailyWriter.WriteLine($"LastUpdate {DateTime.Now.ToString("yyyyMMdd")} {DateTime.Now.ToLongTimeString()}");
foreach (var s in Statistic)
{
dailyWriter.WriteLine($"* {s.name} {s.address} {s.port} {s.path} {s.host} {s.todayUp} {s.todayDown}");
}
}
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
}
public void LoadFromFile()
{
if (!Directory.Exists(logPath_)) return;
// 总流量统计文件
///
/// 文件结构
/// LastUpdate [date] [time]
/// UP [readable string] [amount]
/// DOWN [readable string] [amount]
/// 每行每个数据空格分隔
///
var overallPath = Path.Combine(logPath_, Global.StatisticLogOverall);
if (File.Exists(overallPath))
{
try
{
using (var overallReader = new StreamReader(overallPath))
{
while (!overallReader.EndOfStream)
{
var line = overallReader.ReadLine();
if (line.StartsWith("LastUpdate"))
{
}
else if (line.StartsWith("UP"))
{
var datas = line.Split(' ');
if (datas.Length < 3) return;
TotalUp = ulong.Parse(datas[2]);
}
else if (line.StartsWith("DOWN"))
{
var datas = line.Split(' ');
if (datas.Length < 3) return;
TotalDown = ulong.Parse(datas[2]);
}
else if (line.StartsWith("*"))
{
var datas = line.Split(' ');
if (datas.Length < 8) return;
var name = datas[1];
var address = datas[2];
var port = int.Parse(datas[3]);
var path = datas[4];
var host = datas[5];
var totalUp = ulong.Parse(datas[6]);
var totalDown = ulong.Parse(datas[7]);
var temp = new ServerStatistics(name, address, port, path, host, 0, 0, 0, 0);
var index = Statistic.FindIndex(item => Utils.IsIdenticalServer(item, temp));
if (index != -1)
{
Statistic[index].totalUp = totalUp;
Statistic[index].totalDown = totalDown;
}
else
{
var s = new Mode.ServerStatistics(name, address, port, path, host, totalUp, totalDown, 0, 0);
Statistic.Add(s);
}
}
}
}
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
}
// 当天流量记录文件
var dailyPath = Path.Combine(logPath_, $"{DateTime.Now.ToString("yyyyMMdd")}.txt");
if (File.Exists(dailyPath))
{
try
{
using (var dailyReader = new StreamReader(dailyPath))
{
while (!dailyReader.EndOfStream)
{
var line = dailyReader.ReadLine();
if (line.StartsWith("LastUpdate"))
{
}
else if (line.StartsWith("*"))
{
var datas = line.Split(' ');
if (datas.Length < 8) return;
var name = datas[1];
var address = datas[2];
var port = int.Parse(datas[3]);
var path = datas[4];
var host = datas[5];
var todayUp = ulong.Parse(datas[6]);
var todayDown = ulong.Parse(datas[7]);
var temp = new ServerStatistics(name, address, port, path, host, 0, 0, 0, 0);
var index = Statistic.FindIndex(item => Utils.IsIdenticalServer(item, temp));
if (index != -1)
{
Statistic[index].todayUp = todayUp;
Statistic[index].todayDown = todayDown;
}
else
{
var s = new Mode.ServerStatistics(name, address, port, path, host, 0, 0, todayUp, todayDown);
Statistic.Add(s);
}
}
}
}
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
}
}
private void DeleteExpiredLog()
{
try
{
if (!Directory.Exists(logPath_)) return;
var dirInfo = new DirectoryInfo(logPath_);
var files = dirInfo.GetFiles();
foreach (var file in files)
{
if (file.Name == "overall.txt") continue;
var name = file.Name.Split('.')[0];
var ft = DateTime.Parse(name);
var ct = DateTime.Now;
var dur = ct - ft;
if (dur.Days > config_.CacheDays)
{
file.Delete();
}
}
}
catch (Exception ex)
{
Utils.SaveLog(ex.Message, ex);
}
}
private int GetFreePort()
{
int defaultPort = 28123;
try
{
// TCP stack please do me a favor
TcpListener l = new TcpListener(IPAddress.Loopback, 0);
l.Start();
var port = ((IPEndPoint)l.LocalEndpoint).Port;
l.Stop();
return port;
}
catch (Exception ex)
{
// in case access denied
Utils.SaveLog(ex.Message, ex);
return defaultPort;
}
}
}
}