first commit

2026-07-16 12:21:20 +02:00
commit 4fb2fb2ae0
28 changed files with 492 additions and 0 deletions
@@ -0,0 +1,154 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Reflection;
+using System.Reflection.Metadata;
+using System.Text;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+
+public class Peer {
+    private readonly TcpListener _listener;
+    private string _targetIp = "";
+    private int _targetPort = 0;
+    private int _port = 0;
+    private string _name = "";
+    private bool running = true;
+    private bool hasConnected = false;
+    private bool userOnline = false;
+
+    public Peer(int port, string targetIp, int targetPort, string name) {
+        _listener = new TcpListener(IPAddress.Any, port);
+        _port = port;
+        _targetIp = targetIp;
+        _targetPort = targetPort;
+        _name = name;
+    }
+
+    public async Task Start(){
+        Task listen = StartListening();
+        Task chat = StartChat();
+        
+        await Task.WhenAll(listen, chat);
+    }
+
+    private async Task StartListening(){
+        _listener.Start();
+        Console.WriteLine($"[info] Nasłuchuje na: 127.0.0.1:{_port}");
+        while(running){
+            try {
+                TcpClient client = await _listener.AcceptTcpClientAsync();
+                _ = Task.Run(() => HandleClient(client));
+            } catch(Exception ex){
+                Console.WriteLine($"[błąd] Wystąpił nieoczekiwany błąd przy nasłuchiwaniu: {ex.Message}");
+            }
+        } 
+    }
+
+    private async Task HandleClient(TcpClient client) {
+        try {
+            using NetworkStream stream = client.GetStream();
+            using StreamReader reader = new(stream, Encoding.UTF8);
+            while(running){
+                string? message = await reader.ReadLineAsync();
+                if(message == null) break;
+
+                Content? contentData = JsonSerializer.Deserialize<Content>(message);
+                if(contentData == null) break;
+
+                ProcessMessage(contentData);
+            }
+        } catch(Exception ex){
+            Console.WriteLine(ex.Message);
+        }
+    }
+    
+    private void ProcessMessage(Content contentData){
+        try {
+            ClearConsoleLine();
+            Console.SetCursorPosition(0, Console.CursorTop - 1);
+            if(contentData.Message == "!exit"){
+                running = false;
+                Console.WriteLine($"\n[info] Użytkownik {contentData.Sender} zakończył sesję");
+            }
+
+            if(contentData.Message.Contains("dołączył/a do sesji") && !userOnline){
+                SendMessage($"jest online! Przywitaj się :D", false).Wait();
+            }
+
+            if(contentData.ByUser){
+                Console.WriteLine($"\n[{contentData.SentAt}] {contentData.Sender}: {contentData.Message}");
+            } else {
+                Console.WriteLine($"\n[info] [{contentData.SentAt}] Użytkownik {contentData.Sender} {contentData.Message}");
+            }
+
+            Console.Write("> ");
+        } catch (Exception ex) {
+            Console.WriteLine(ex.Message);
+        }
+    }
+
+    private async Task StartChat(){
+        while(running){
+            if(!hasConnected){
+                await SendMessage("dołączył/a do sesji", false);
+                hasConnected = true;
+            }
+            ClearConsoleLine();
+            Console.SetCursorPosition(0, Console.CursorTop - 1);
+            Console.Write("\n> ");
+            string? message = Console.ReadLine();
+
+            if(message == "!exit"){
+                await SendMessage("!exit", false);
+                await SendMessage("opuścił/a sesję", false);
+                running = false;
+                break;
+            } else {
+                await SendMessage(message ?? "", true);
+            }
+
+        }
+    }
+
+    private async Task SendMessage(string message, bool by_user){
+        try {
+            TcpClient client = new ();
+            await client.ConnectAsync(_targetIp, _targetPort);
+            
+            Content data = new() { Sender = _name, IpAddress = $"127.0.0.1:{_port}", Message = message, SentAt = DateTime.Now, ByUser = by_user };
+            string json = JsonSerializer.Serialize(data);
+
+            using NetworkStream stream = client.GetStream();
+            using StreamWriter writer = new(stream, Encoding.UTF8) { AutoFlush = true };
+            await writer.WriteAsync(json);
+
+            if(by_user){
+                ClearConsoleLine();
+                Console.SetCursorPosition(0, Console.CursorTop - 2);
+                Console.WriteLine($"\n[{DateTime.Now}] Ja: {message}");
+            }
+        } catch(Exception ex){
+            if(userOnline)
+                Console.WriteLine($"[błąd] Nie udało się wysłać wiadomości: {ex.Message}");
+        }
+    }
+
+    
+
+    void ClearConsoleLine(){
+        int cur = Console.CursorTop;
+        Console.SetCursorPosition(0, Console.CursorTop);
+        Console.Write(new string(' ', Console.WindowWidth)); 
+        Console.SetCursorPosition(0, cur);
+    }
+}
+
+public class Content {
+    public string Sender { get; set; } = "";
+    public string Message { get; set; } = "";
+    public string IpAddress { get; set; } = "";
+    public DateTime SentAt { get; set;}
+    public bool ByUser { get; set; }
+}
@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net9.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
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+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PeerToPeer_Messenger", "PeerToPeer_Messenger.csproj", "{DEBFE5BC-9B40-D7C4-B922-7DE39176AA46}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{DEBFE5BC-9B40-D7C4-B922-7DE39176AA46}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DEBFE5BC-9B40-D7C4-B922-7DE39176AA46}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DEBFE5BC-9B40-D7C4-B922-7DE39176AA46}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DEBFE5BC-9B40-D7C4-B922-7DE39176AA46}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {E4C633F1-4F75-4DEF-BAAD-CFFF486A78DB}
+	EndGlobalSection
+EndGlobal
@@ -0,0 +1,35 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+public class Program {
+    public static async Task Main(string[] args) {
+        string? targetIp = "";
+        int targetPort = 0;
+
+        try {
+            Console.Clear();
+            Console.WriteLine("Jak się nazywasz?");
+            string name = Console.ReadLine() ?? "User";
+
+            Console.WriteLine("Wybierz port, którym będziesz posługiwał się do P2P: ");
+            int port = int.Parse(Console.ReadLine() ?? "5000");
+            
+            Console.WriteLine("Wpisz adres IP odbiorcy: ");
+            targetIp = Console.ReadLine();
+            
+            Console.WriteLine("Podaj port odbiorcy: ");
+            targetPort = int.Parse(Console.ReadLine() ?? "5001");
+
+            Console.Clear();
+
+            var peer = new Peer(port, targetIp ?? "127.0.0.1", targetPort, name);
+            await peer.Start();
+        } catch(Exception ex){
+            Console.WriteLine(ex.Message);
+        }
+    }
+}
@@ -0,0 +1,23 @@
+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v9.0",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v9.0": {
+      "PeerToPeer_Messenger/1.0.0": {
+        "runtime": {
+          "PeerToPeer_Messenger.dll": {}
+        }
+      }
+    }
+  },
+  "libraries": {
+    "PeerToPeer_Messenger/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}
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+{
+  "runtimeOptions": {
+    "tfm": "net9.0",
+    "framework": {
+      "name": "Microsoft.NETCore.App",
+      "version": "9.0.0"
+    },
+    "configProperties": {
+      "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization": false
+    }
+  }
+}
@@ -0,0 +1,4 @@
+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v9.0", FrameworkDisplayName = ".NET 9.0")]
@@ -0,0 +1,22 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("PeerToPeer_Messenger")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0")]
+[assembly: System.Reflection.AssemblyProductAttribute("PeerToPeer_Messenger")]
+[assembly: System.Reflection.AssemblyTitleAttribute("PeerToPeer_Messenger")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// Generated by the MSBuild WriteCodeFragment class.
+
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+build_property.EffectiveAnalysisLevelStyle = 9.0
+build_property.EnableCodeStyleSeverity = 
@@ -0,0 +1,8 @@
+// <auto-generated/>
+global using global::System;
+global using global::System.Collections.Generic;
+global using global::System.IO;
+global using global::System.Linq;
+global using global::System.Net.Http;
+global using global::System.Threading;
+global using global::System.Threading.Tasks;
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