Messenger/Versions/Less Closed Beta/v3.0/Pre-Cleanup/MSGer.tk/Networking.cs

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C#
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2014-10-24 17:48:59 +00:00
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace MSGer.tk
{
static class Networking
{
public enum UpdateType : byte
{
//CheckForUpdates = 0x01, //0x00: outofdate, 0x01: fine -- Ezt is a weboldalról ellenőrizze
//SetState = 0x01, //0x01: Success
//GetList - Változás esetén küldjék el, ne kelljen letölteni
ListUpdate = 0x01, //0x01: OK
UpdateMessages, //0x01: OK
GetImage, //(int)0: Hiba, egyébként a kép hossza, majd a kép
//FindPeople,
//UpdateSettings, - Küldje el a ListUpdate-tel
LoginUser, //0x00: Hiba - Egyébként minden fontos információ, amiről "lemaradt"
LogoutUser, //0x01: OK
SetKey, //0x01: OK
KeepAlive,
};
//public static UdpClient Connection = new UdpClient();
public static UdpClient SenderConnection = new UdpClient(); //2014.09.04. - Ezt ne társítsa egy porthoz, hogy működjön az udp hole punching
public static UdpClient ReceiverConnection = new UdpClient(); //2014.09.04. - Társítsa egy porthoz
public static byte[] DataBuffer;
public static IPEndPoint RemoteEP;
public static bool WaitingOnResponse = false; //2014.08.16.
public static byte WaitingOnPacket = 0x00; //2014.08.16. - 0x00: Nincs
public static byte[][] SendUpdate(UpdateType ut, byte[] data, bool response)
{
if (UserInfo.IPs.Count == 0)
return null;
/*try - A Connection MINDIG be legyen állítva
{
if (Connection == null || Connection.Available >= 0) //Az utóbbi csak arra szolgál, hogy ObjectDisposedException történjen, ha kell
{
while (true) //<-- 2014.08.30.
{
var remoteEP = new IPEndPoint(IPAddress.Any, Int32.Parse(Storage.Settings["port"]));
if (IPGlobalProperties.GetIPGlobalProperties().GetActiveUdpListeners().Select(entry => entry.Port).Contains(remoteEP.Port))
Storage.Settings["port"] = (Int32.Parse(Storage.Settings["port"]) + 1).ToString();
else
break;
}
Connection = new UdpClient(Int32.Parse(Storage.Settings["port"]));
}
}
catch (ObjectDisposedException)
{
Connection = new UdpClient(Int32.Parse(Storage.Settings["port"]));
}*/
//List<byte> senddata = new List<byte>();
//senddata.Add((response) ? (byte)0x01 : (byte)0x00); //0x00: Kérelem/Adatküldés, 0x01: Válasz
//senddata.Add((byte)ut);
//senddata.AddRange(BitConverter.GetBytes(CurrentUser.UserID)); //4 bájt; ellenőrizze le, hogy az IP is megegyezik-e, hacsak nem IP-változást jelez
//senddata.AddRange(data);
byte[] senddata = CreatePacket(response, (byte)ut, data);
if (UserInfo.BanTime < Environment.TickCount - 1000 * 60 * 1) //2014.08.30. - 2014.10.09. - 10 percről 1-re csökkentve
UserInfo.BannedIPs = new List<IPEndPoint>(); //2014.08.30.
//string[] tmp = UserInfo.IPs.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries); //RemoveEmptyEntries: 2014.08.29. - UserInfo... szintén...
//for (int i = 0; i < tmp.Length; i++)
//for (int i = 0; i < UserInfo.IPs.Count; i++)
if (!response)
{ //2014.08.30. - Azelőtt állítsa be, hogy elküldené a lekéréseket, hogy biztosan reagáljon a válaszra
WaitingOnResponse = true; //2014.08.16.
WaitingOnPacket = (byte)ut; //2014.08.16.
}
foreach (var item in UserInfo.IPs)
{ //Elküldi az összes ismert címre
//int port=
//Connection.Send(Storage.Encrypt(senddata.ToArray()), senddata.Count, new IPEndPoint(IPAddress.Parse(tmp2[0]), Int32.Parse(tmp2[1])));
try
{
if (!UserInfo.BannedIPs.Contains(item))
//SenderConnection.Send(Storage.Encrypt(senddata.ToArray(), "sendupdatestringencrypted"), senddata.Count, item);
SenderConnection.Send(senddata, senddata.Length, item);
}
catch (ObjectDisposedException)
{
return null;
}
}
/*if (!loggedin)
ReceiveUpdates();
else
while (Networking.DataBuffer == null) ;*/
if (!response)
{
//WaitingOnResponse = true; //2014.08.16.
//WaitingOnPacket = (byte)ut; //2014.08.16.
int lasttick = Environment.TickCount;
List<byte[]> Ret = new List<byte[]>();
List<IPEndPoint> ResponsedIPs = new List<IPEndPoint>();
//while (Environment.TickCount - 1000 * 60 > lasttick || Ret.Count == tmp.Length) //2014.08.16. - Visszatér, ha kapott választ egy ismert IP-ről, de ha máshonnan kap, újra várakozik, legfeljebb egy percig
//while (Environment.TickCount - 1000 * 60 < lasttick && Ret.Count < UserInfo.IPs.Count - UserInfo.BannedIPs.Count) //2014.08.29.
int count = 0;
while (Environment.TickCount - 1000 * 10 < lasttick && ResponsedIPs.Count < UserInfo.IPs.Count - UserInfo.BannedIPs.Count) //2014.09.09. - 2014.10.09. - 60 mp --> 10 mp
{ //2014.08.19. - Ret.Count == tmp.Length
//if (MainForm.PartnerListThreadActive) //2014.09.06.
if (MainForm.LThread != null) //2014.09.06.
{
while (DataBuffer == null && Environment.TickCount - 1000 * count * 2 < lasttick) ; //Várakozik, amíg a másik thread át nem adja a választ - 2014.10.09. - 10 mp --> 2 mp
foreach (var item in UserInfo.IPs.Except(UserInfo.BannedIPs).Except(ResponsedIPs)) //2014.09.22.
{ //Elküldi az összes ismert címre
try
{
//if (!UserInfo.BannedIPs.Contains(item))
SenderConnection.Send(senddata, senddata.Length, item);
}
catch (ObjectDisposedException)
{
return null;
}
}
count++;
}
//else //2014.09.06.
//ReceiveUpdates(); //2014.09.06.
if (DataBuffer == null) //2014.08.30. - Az idő telt le
{
//UserInfo.IPs.Select(entry => (ResponsedIPs.Contains(entry)) ? (UserInfo.IPs.Remove(entry)) : entry)
UserInfo.BannedIPs = UserInfo.IPs.Except(ResponsedIPs).ToList(); //2014.08.30. - Ideiglenesen kitilt minden IP-t, ahonnan nem érkezett válasz
UserInfo.BanTime = Environment.TickCount;
break;
}
//if (tmp.Contains(RemoteEP.ToString() + ":" + RemoteEP.Port))
if (UserInfo.IPs.Contains(RemoteEP) && !UserInfo.BannedIPs.Contains(RemoteEP))
{
ResponsedIPs.Add(RemoteEP);
//byte[] ret = Storage.Decrypt(DataBuffer, true, "sendupdatestringencrypted");
var pparts = ParsePacket(DataBuffer);
//int keyindex = BitConverter.ToInt32(DataBuffer, 0);
/*DataBuffer = null;
RemoteEP = null;
WaitingOnResponse = false;
WaitingOnPacket = 0x00;*/
if (pparts.KeyVersion != CurrentUser.KeyIndex && pparts.UpdateType != UpdateType.SetKey)
{
DataBuffer = null; //2014.09.22. - Mindig adja meg a lehetőséget, hogy újra beállítsa
continue;
}
//byte[] ret = new byte[DataBuffer.Length - 4];
//Array.Copy(DataBuffer, 4, ret, 0, ret.Length);
int i;
for (i = 0; i < Ret.Count; i++)
{
if (DataBuffer.SequenceEqual(Ret[i]))
break;
}
if (i == Ret.Count)
Ret.Add(DataBuffer);
//return ret;
} //(2014.08.17. -->) Várja meg, amíg az összes online(!) ismerőse válaszol - Vagy letelik az egy perc
DataBuffer = null; //2014.09.22. - Mindig adja meg a lehetőséget, hogy újra beállítsa
}
DataBuffer = null;
RemoteEP = null;
WaitingOnResponse = false;
WaitingOnPacket = 0x00;
return Ret.ToArray();
}
return null;
}
public static bool SendChatMessage(ChatForm chat, string message)
{ //2014.09.22.
//foreach(var pID in chat.ChatPartners)
//{
//var pInfo = UserInfo.Select(pID);
//TCP közvetlen kapcsolat nem feltétlenül lehetséges, mert a felhasználók router mögött lehetnek...
//Ezért ugyanazt a rendszert kell használni itt is...
//}
List<byte> bytes = new List<byte>();
string sendstr = "";
foreach (var pID in chat.ChatPartners)
{
sendstr += pID + ",";
}
//sendstr += "ͦ";
bytes.AddRange(BitConverter.GetBytes(Encoding.Unicode.GetByteCount(sendstr)));
bytes.AddRange(Encoding.Unicode.GetBytes(sendstr));
sendstr = message; //Átállítja a sendstr-t az üzenetre, majd újra belerakja
bytes.AddRange(BitConverter.GetBytes(Encoding.Unicode.GetByteCount(sendstr)));
bytes.AddRange(Encoding.Unicode.GetBytes(sendstr));
sendstr = Program.DateTimeToUnixTime(DateTime.Now);
bytes.AddRange(BitConverter.GetBytes(Encoding.Unicode.GetByteCount(sendstr)));
bytes.AddRange(Encoding.Unicode.GetBytes(sendstr));
byte[][] resp = SendUpdate(UpdateType.UpdateMessages, Encoding.Unicode.GetBytes(sendstr), false);
if (resp == null || resp.Length == 0 || resp.All(bytesb => bytesb[0] != 0x01))
return false;
else //Ha válaszoltak, és senki sem válaszolt nem oké jelzéssel, akkor rendben van
return true;
}
public static object[] ReceiveUpdates() //Thread function
{
/*if (ReceiverConnection != null)
{
if (Connection.Client != null) //2014.09.01.
{
Connection.Client.Close(); //2014.08.30.
//while (Connection.Client.IsBound) ; //2014.08.30.
}
if (Connection != null) //2014.09.01. - Még mindig nem null
Connection.Close();
}*/
IPEndPoint remoteEP;
/*while (true) //<-- 2014.08.30. -- 2014.09.01. - Ne ellenőrizze le minden alkalommal, csak a program indulásakor
{
remoteEP = new IPEndPoint(IPAddress.Any, Int32.Parse(Storage.Settings["port"]));
if (IPGlobalProperties.GetIPGlobalProperties().GetActiveUdpListeners().Select(entry => entry.Port).Contains(remoteEP.Port))
Storage.Settings["port"] = (Int32.Parse(Storage.Settings["port"]) + 1).ToString();
else
break;
}*/
remoteEP = new IPEndPoint(IPAddress.Any, Int32.Parse(Storage.Settings["port"])); //2014.09.04. - A port beállítása már megtörtént
//Connection = new UdpClient(Int32.Parse(Storage.Settings["port"]));
byte[] buf;
try
{
buf = ReceiverConnection.Receive(ref remoteEP);
}
catch
{
return null;
}
if (buf[0] == 0x01) //0x01: Válasz egy kérelemre
{
if (WaitingOnResponse == false || WaitingOnPacket != buf[1])
return null;
while (DataBuffer != null) ; //Várja meg, amíg feldolgozza a legutóbbi adatot
//DataBuffer = buf;
//Array.Copy(buf, 2, DataBuffer = new byte[buf.Length - 2], 0, buf.Length - 2); //2014.08.16. - Ne rakja bele a packet ID-t, és hogy válasz
DataBuffer = buf; //2014.09.19. - Küldön el mindenhova mindent, és egységesen egy funkcióval dolgozza fel
RemoteEP = remoteEP;
return null;
}
else
//return Storage.Decrypt(buf, true);
return new object[] { buf, remoteEP };
}
/*private static void SendTo(byte[] data, IPEndPoint ip)
{
if (!HttpListener.IsSupported)
{
MessageBox.Show("Windows XP or newer required.");
return;
}
HttpListener listener = new HttpListener();
listener.Prefixes.Add("http://" + CurrentUser.IP.ToString() + ":" + Storage.Settings["port"] + "/");
listener.Start();
Console.WriteLine("Listening for incoming connections...");
HttpListenerContext context = listener.GetContext();
HttpListenerRequest request = context.Request;
request
}*/
public static string[] GetStrings(byte[] bytes, int startIndex)
{
List<string> strs = new List<string>();
//byte[] tmparr;
int pos = startIndex;
while (pos < bytes.Length)
{
//tmparr = new byte[4];
//pos = 2;
//Array.Copy(bytes, pos, tmparr, 0, 4);
//int len = BitConverter.ToInt32(tmparr, 0); //A hosszúság megállapítása
int len = BitConverter.ToInt32(bytes, pos);
pos += 4;
//tmparr = new byte[len];
//Array.Copy(bytes, pos, tmparr, 0, len);
strs.Add(Encoding.Unicode.GetString(bytes, pos, len));
}
return strs.ToArray();
}
public static void ParseUpdateInfo(byte[][] bytes)
{
if (bytes == null)
return;
for (int i = 0; i < bytes.Length; i++)
{
//byte[] tmp = new byte[bytes[i].Length - 4];
//Array.Copy(bytes[i], 4, tmp, 0, tmp.Length); //Az első 4 bájt a UserID
byte[] data = ParsePacket(bytes[i]).Data;
//string[] strs = Storage.Decrypt(tmp).Split(new string[] { "\n", "\n\r" }, StringSplitOptions.RemoveEmptyEntries);
string[] strs = Encoding.Unicode.GetString(data).Split(new string[] { "\n", "\n\r" }, StringSplitOptions.RemoveEmptyEntries); //2014.09.19.
string str = "";
for (int j = 0; j < strs.Length; j++)
{
string[] spl = strs[j].Split('_'); //2014.08.30.
int uid = Int32.Parse(spl[0]); //2014.08.30.
string[] keyvalue = spl[1].Split('='); //2014.08.30.
if (keyvalue[0] == "ispartner")
{ //2014.08.30.
string resp = Networking.SendRequest("ispartner", uid + "", 0, true);
if (resp == "yes")
str += "userinfo_" + uid + "_ispartner=True";
else if (resp == "no")
str += "userinfo_" + uid + "_ispartner=False";
else
MessageBox.Show("ispartner:\n" + resp);
}
else
//strs[j] = "userinfo_" + strs[j];
//str += strs[j];
str += "userinfo_" + strs[j];
if (j + 1 != strs.Length)
str += "\n";
}
Storage.Parse(str);
}
}
public static void ParsePacket(byte[] bytes, out byte response, out UpdateType updatetype, out int keyversion, out int userid, out byte[] data)
{ //2014.09.15.
if (CurrentUser.Keys[CurrentUser.KeyIndex] != null)
bytes = Storage.Encrypt(bytes, CurrentUser.Keys[CurrentUser.KeyIndex]);
else
bytes = Storage.Encrypt(bytes, "ihavenokeys");
response = bytes[0];
updatetype = (UpdateType)bytes[1];
keyversion = BitConverter.ToInt32(bytes, 1 + 1);
userid = BitConverter.ToInt32(bytes, 1 + 1 + 4);
data = new byte[bytes.Length - 1 - 1 - 4 - 4];
Array.Copy(bytes, 2 + 4 + 4, data, 0, data.Length);
}
public struct PacketParts
{
public bool Response;
public UpdateType UpdateType;
public int KeyVersion;
public int UserID;
public byte[] Data;
};
public static PacketParts ParsePacket(byte[] bytes)
{ //2014.09.15.
if (CurrentUser.Keys[CurrentUser.KeyIndex] != null)
bytes = Storage.Encrypt(bytes, CurrentUser.Keys[CurrentUser.KeyIndex]);
else
bytes = Storage.Encrypt(bytes, "ihavenokeys");
var ret = new PacketParts();
ret.Response = (bytes[0] == 0x01) ? true : false;
ret.UpdateType = (UpdateType)bytes[1];
ret.KeyVersion = BitConverter.ToInt32(bytes, 1 + 1);
ret.UserID = BitConverter.ToInt32(bytes, 1 + 1 + 4);
ret.Data = new byte[bytes.Length - 1 - 1 - 4 - 4];
Array.Copy(bytes, 2 + 4 + 4, ret.Data, 0, ret.Data.Length);
return ret;
}
public static byte[] CreatePacket(bool response, byte updatetype, byte[] data)
{ //2014.09.15.
List<byte> senddata = new List<byte>();
senddata.Add((response) ? (byte)0x01 : (byte)0x00); //0x00: Kérelem/Adatküldés, 0x01: Válasz
senddata.Add(updatetype);
senddata.AddRange(BitConverter.GetBytes(CurrentUser.KeyIndex));
List<byte> sendd = new List<byte>();
sendd.AddRange(BitConverter.GetBytes(CurrentUser.UserID));
sendd.AddRange(data);
if (CurrentUser.Keys[CurrentUser.KeyIndex] != null)
senddata.AddRange(Storage.Encrypt(sendd.ToArray(), CurrentUser.Keys[CurrentUser.KeyIndex]));
else
senddata.AddRange(Storage.Encrypt(sendd.ToArray(), "ihavenokeys"));
return senddata.ToArray();
}
private static int Tries = 0;
public static string SendRequest(string action, string data, int remnum, bool loggedin) //2014.02.18.
{
#if LOCAL_SERVER //2014.07.07. 22:00
HttpWebRequest httpWReq =
(HttpWebRequest)WebRequest.Create("http://localhost/ChatWithWords/client.php");
#else
HttpWebRequest httpWReq =
(HttpWebRequest)WebRequest.Create("http://msger.url.ph/client.php");
#endif
ASCIIEncoding encoding = new ASCIIEncoding();
string postData = "action=" + action;
if (loggedin) //2014.03.14.
postData += "&uid=" + CurrentUser.UserID;
postData += "&key=cas1fe4a6feFEFEFE1616CE8099VFE1444cdasf48c1ase5dg";
if (loggedin) //2014.03.14.
postData += "&code=" + LoginForm.UserCode; //2014.02.13.
postData += "&data=" + Uri.EscapeUriString(data); //2014.02.13.
byte[] datax = encoding.GetBytes(postData);
httpWReq.Method = "POST";
httpWReq.ContentType = "application/x-www-form-urlencoded";
httpWReq.ContentLength = datax.Length;
using (Stream stream = httpWReq.GetRequestStream())
{
stream.Write(datax, 0, datax.Length);
}
//Lista betöltése folyamatban...
HttpWebResponse response;
try
{
response = (HttpWebResponse)httpWReq.GetResponse();
}
catch (Exception e)
{
if (Tries > 10)
{
MessageBox.Show(Language.Translate("error_network") + ":\n" + e.Message + "\n\n" + Language.Translate("error_network2"), Language.Translate("error")); //2014.04.25.
Tries = 0;
}
Tries++;
return SendRequest(action, data, remnum, loggedin); //Újrapróbálkozik
}
//if (!binary)
//{
string responseString;
responseString = Uri.UnescapeDataString(new StreamReader(response.GetResponseStream()).ReadToEnd());
return responseString;
//}
/*else
{
byte[] responseBinary = new byte[1024 * 1024 * 60];
response.GetResponseStream().Read(responseBinary, 0, 1024 * 1024 * 60); //Nem vagyok még biztos benne, hogy jó ötlet-e
return responseBinary;
}*/
}
/*public static string SendRequest(string action, string data, int remnum, bool loggedin) //2014.08.02.
{
return (string)SendRequest(action, data, remnum, loggedin, false);
}*/
//public static Socket SendConnection;
/*public static object SendSocket(string action, string data, int remnum, bool loggedin, bool binary) //2014.02.18.
{
Socket SendConnection;
#if LOCAL_SERVER //2014.07.07. 22:00
SendConnection = new Socket(SocketType.Stream, ProtocolType.Tcp);
SendConnection.Connect("localhost", Settings.Default.port + 1); //2014.08.02.
#else
Connection = new Socket(SocketType.Stream, ProtocolType.Tcp);
Connection.Connect("localhost", Settings.Default.port + 1); //2014.08.02.
#endif
ASCIIEncoding encoding = new ASCIIEncoding();
string postData = "action=" + action;
if (loggedin) //2014.03.14.
postData += "&uid=" + CurrentUser.UserID;
postData += "&key=cas1fe4a6feFEFEFE1616CE8099VFE1444cdasf48c1ase5dg";
if (loggedin) //2014.03.14.
postData += "&code=" + LoginForm.UserCode; //2014.02.13.
postData += "&data=" + Uri.EscapeUriString(data); //2014.02.13.
byte[] datax = encoding.GetBytes(postData);
SendConnection.Send(BitConverter.GetBytes(datax.Length));
SendConnection.Send(datax);
//Lista betöltése folyamatban...
byte[] response = new byte[4];
SendConnection.Receive(response, 4, SocketFlags.None);
int len = BitConverter.ToInt32(response, 0);
response = new byte[len];
try
{
SendConnection.Receive(response);
}
catch (Exception e)
{
if (Tries > 10)
{
MessageBox.Show(Language.Translate("error_network"] + ":\n" + e.Message + "\n\n" + Language.Translate("error_network2"], Language.Translate("error"]); //2014.04.25.
Tries = 0;
}
Tries++;
return SendRequest(action, data, remnum, loggedin); //Újrapróbálkozik
}
if (!binary)
{
string responseString;
responseString = encoding.GetString(response);
return responseString;
}
else
{
return response;
}
}*/
public static void KeepUpThread()
{ //2014.08.28.
Thread.Sleep(59 * 60 * 1000); //59 percenként frissíti a jelenlétét, így biztosan nem jelenti offline-nak a PHP (elvileg)
Console.WriteLine("KeepUpThread: " + Networking.SendRequest("keepactive", "", 0, true));
}
public static void KeepUpUsersThread() //2014.09.26. - Nehogy bezáruljon a kapcsolat
{
Thread.Sleep(1000);
Networking.SendUpdate(UpdateType.KeepAlive, new byte[] { 0x01 }, false);
}
}
}