fix typos

PolyChat/Controller.cs

@@ -5,14 +5,7 @@ using System.Net;
 using SocketIOSharp.Server;
 using SocketIOSharp.Server.Client;
 using PolyChat.Models;
-using System.IO;
-using System.Threading;
 using System;
-using System.Text;
-using System.Security.Cryptography;
-using Windows.Security.Cryptography.Core;
-using Windows.Security.Cryptography;
-using Windows.Storage.Streams;
 
 namespace PolyChat
 { 
@@ -37,13 +30,12 @@ namespace PolyChat
         {
             UIController = uiController;
             fileManager = new FileManager(this);
-            //OwnIP = getIP();
             fileManager.loadChats();
             Serve();
 
             // test
             /*
-            UIController.OnIncomingConnection("1.1.1.1");
+            UIController.OnIncomingConnection("localhost");
             UIController.OnIncomingConnection("1.2.3.4");
             UIController.OnIncomingConnection("1.2.4.8");
             */

PolyChat/MainPage.xaml

@@ -96,14 +96,17 @@
             <!-- CHAT -->
             <ScrollViewer Grid.Row="1" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Hidden">
                 <ListView x:Name="listViewMessages" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Margin="4 16">
+                    <ListView.ItemContainerStyle>
+                        <Style TargetType="ListViewItem">
+                            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+                        </Style>
+                    </ListView.ItemContainerStyle>
                     <ListView.ItemTemplate>
                         <DataTemplate x:DataType="models:ChatMessage">
-                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
                             <StackPanel HorizontalAlignment="{x:Bind Align}" x:Name="Message" MaxWidth="320" Margin="0 4" Padding="16 8" CornerRadius="4" Background="{ThemeResource SystemAccentColor}">
                                     <TextBlock Text="{x:Bind Content}" Foreground="{ThemeResource SystemAltHighColor}" TextWrapping="WrapWholeWords" FontSize="14"/>
                                     <TextBlock Text="{x:Bind TimeStamp.ToString()}" Foreground="{ThemeResource SystemAltMediumColor}"/>
                             </StackPanel>
-                            </StackPanel>
                         </DataTemplate>
                     </ListView.ItemTemplate>
                 </ListView>

PolyChat/MainPage.xaml.cs

@@ -89,10 +89,10 @@ namespace PolyChat
             // test
             /*
             OnIncomingMessage(
-                "1.1.1.1",
+                "localhost",
                 new JObject(
-                    new JProperty("type", "username"),
-                    new JProperty("content", "Cloudflare")
+                    new JProperty("type", "message"),
+                    new JProperty("content", "Test")
                 ).ToString(),
                 DateTime.Now
              );

PolyChat/Models/Client.cs

@@ -0,0 +1,156 @@
+using System;
+using SocketIOSharp.Common;
+using SocketIOSharp.Client;
+using SocketIOSharp.Server.Client;
+using Json.Net;
+using System.Threading;
+using PolyChat.Models.Exceptions;
+using System.Diagnostics;
+
+namespace PolyChat.Models
+{
+    class Client
+    {
+        private SocketIOClient connection_client = null;
+        private SocketIOSocket connection_server = null;
+        private Boolean connected = true;
+        private String ipSelf;
+
+        public Client(SocketIOClient connection, String ip, MainPage uiController)
+        {
+            this.ipSelf = ip;
+            this.connection_client = connection;
+            InitEventHandlers(this, connection, uiController);
+        }
+
+        /// <summary>
+        /// Called when socket accepts client
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <param name="ip"></param>
+        /// <param name="uiController"></param>
+        public Client(SocketIOSocket connection, String ip, MainPage uiController)
+        {
+            Debug.WriteLine("New Client Saved!!!!(Clinent[34])");
+            this.ipSelf = ip;
+            this.connection_server = connection;
+            InitEventHandlers(this, connection, uiController);
+        }
+
+        //Sending
+        //===================================================================================
+        /// <summary>
+        /// converts String message into json file and sends it to the server.
+        /// </summary>
+        /// <remarks>
+        /// gets called by gui if someone wants to send Message
+        /// </remarks>
+        /// <param name="sender">Sender of Message</param>
+        /// <param name="chatMessage">the accual text the user wants to send</param>
+        /// <param name="timestamp">current time</param>
+        public void sendMessage(SendCode code, String chatMessage)
+        {
+            new Thread(() =>
+            {
+                Debug.WriteLine($"connected is {connected}");
+                //create msg
+                Message msg = new Message(chatMessage, false, ipSelf);
+
+                //convert msg
+                String petJson = JsonNet.Serialize(msg);
+
+                //wait if not connected and send msg
+                int i=0;
+                int sleeptimer = 2000;
+                while(!this.connected)
+                {
+                    Thread.Sleep(sleeptimer);
+                    i++;
+                    if(i>=10)
+                    {
+                        throw new MessageTimedOutException(i*sleeptimer);
+                    }
+                }
+                if (connection_client != null)
+                {
+                    connection_client.Emit(code.ToString(), petJson);
+                }else if (connection_server != null)
+                {
+                    connection_server.Emit(code.ToString(), petJson);
+                }
+            }).Start();
+        }
+
+        //==================================================================================
+        //EventHandeling
+        //===================================================================================
+        
+        /// <summary>
+        /// handles all events of client
+        /// </summary>
+        /// <param name="client">self</param>
+        /// <param name="connection"></param>
+        private static void InitEventHandlers(Client client, SocketIOClient connection, MainPage uiController)
+        {
+            connection.On(SendCode.Message.ToString(), (Data) =>
+            {
+                //Message msg = new Message(Data[0]);
+                Debug.WriteLine("Normal Message Recieved!!!!");
+                Message msg = JsonNet.Deserialize<Message>(Data[0].ToString());
+                uiController.OnIncomingMessage(msg);
+
+                //TODO: send message to GUI
+            });
+
+            connection.On(SendCode.Command.ToString(), (Data) =>
+            {
+                Console.WriteLine("Command recieved!" + Data[0]);
+                
+            });
+
+            connection.On(SocketIOEvent.CONNECTION, () =>
+            {
+
+                client.connected = true;
+            });
+        }
+
+        /// <summary>
+        /// handles all events of server
+        /// </summary>
+        /// <param name="client">self</param>
+        /// <param name="connection"></param>
+        private static void InitEventHandlers(Client client, SocketIOSocket connection, MainPage uiController)
+        {
+            connection.On(SendCode.Message.ToString(), (Data) =>
+            {
+                Debug.WriteLine("Normal Message Recieved!!!!");
+                Message msg = JsonNet.Deserialize<Message>(Data[0].ToString());
+                //Message msg = new Message(Data[0]);
+                uiController.OnIncomingMessage(msg);
+                //TODO: send message to GUI
+            });
+
+            connection.On(SendCode.Command.ToString(), (Data) =>
+            {
+                Console.WriteLine("Command recieved!" + Data[0]);
+            });
+
+            client.connected = true;
+        }
+        //==================================================================================
+        //Getter and Setter
+        //==================================================================================
+
+        public String getIP()
+        {
+            return this.ipSelf;
+        }
+
+        public Boolean isConnected()
+        {
+            return this.connected;
+        }
+    }
+
+}

PolyChat/Models/FileManager.cs

@@ -173,7 +173,7 @@ namespace PolyChat.Models
         /// <returns></returns>
         private String[] genKeys()
         {
-            return new String[] {"sehrSichererKey", "nochVielSichererKey"};
+            return new String[] {"12345678", "12345678" };
         }
         
 

PolyChat/Models/Message.cs

@@ -0,0 +1,62 @@
+using Json.Net;
+using Newtonsoft.Json.Linq;
+using System;
+
+namespace PolyChat.Models
+{
+    public class Message
+    {
+        public readonly string Sender;
+        public readonly DateTime Timestamp = new DateTime(1970, 01, 01);
+        public readonly string Msg = "empty";
+        public readonly string Ip;
+        public readonly bool Foreign;
+        public readonly string StringTimeStamp;
+
+        /// <summary>
+        /// create new Message object from parameters
+        /// </summary>
+        /// <param name="Msg"></param>
+        /// <param name="Foreign"></param>
+        /// <param name="Sender"></param>
+        /// <param name="Ip"></param>
+        public Message(string Msg = "", bool Foreign = true, string Sender= "Unknown", string Ip = "127.0.0.1")
+        {
+            this.Sender = Sender;
+            this.Timestamp = DateTime.Now;
+            StringTimeStamp = Timestamp.ToString();
+            this.Msg = Msg;
+            this.Foreign = Foreign;
+            this.Ip = Ip;
+        }
+
+        /// <summary>
+        /// create new Message object from JToken (json)
+        /// </summary>
+        /// <param name="data"></param>
+        public Message(JToken data)
+        {
+            
+            Message m = (Message) data.ToObject<Message>();
+            Sender = m.Sender;
+            Timestamp = m.Timestamp;
+            StringTimeStamp = Timestamp.ToString();
+            Msg = m.Msg;
+            Ip = m.Ip;
+            Foreign = m.Foreign;
+        }
+
+        public Message()
+        {
+
+        }
+        
+
+        override
+        public string ToString()
+        {
+            string prefix = Foreign ? "Other" : "Me";
+            return $"{prefix}: {Msg}({Sender})";
+        }
+    }
+}

PolyChat/Models/NetworkingController.cs

@@ -0,0 +1,127 @@
+using System;
+using System.Diagnostics;
+using System.Collections.Generic;
+using SocketIOSharp.Client;
+using EngineIOSharp.Common.Enum;
+using System.Net;
+using PolyChat.Models.Exceptions;
+
+//dependencies for server functionality
+using SocketIOSharp.Server;
+using SocketIOSharp.Server.Client;
+using Newtonsoft.Json.Linq;
+using System.Threading;
+using Json.Net;
+
+namespace PolyChat.Models
+{
+    class NetworkingController
+    {
+        public List<Client> clients = new List<Client>();
+        private String ownName = "";
+        private IPAddress ownIP;
+        private readonly ushort Port;
+        private SocketIOServer Server;
+        private readonly MainPage uiController;
+
+        public NetworkingController (MainPage uiController, ushort Port = 8050)
+        {
+            this.uiController = uiController;
+            this.Port = Port;
+            ownIP = getIP();
+            startServer();
+        }
+
+        //EXTERNAL METHODS
+        //=========================================================================================================================================================================================
+
+        /// <summary>
+        /// connects self to server with given ip
+        /// </summary>
+        /// <param name="ip"> server to connect to </param>
+        public void connectNewClient(String ip) 
+        {
+            SocketIOClient connection = new SocketIOClient(new SocketIOClientOption(EngineIOScheme.http, ip, 8050));
+            connection.Connect();
+            clients.Add(new Client(connection, ip, uiController));
+        }
+
+        /// <summary>
+        /// handle incomming connection 
+        /// </summary>
+        /// <param name="ip"> server to connect to </param>
+        private void connectNewClient(SocketIOSocket socket)
+        {
+            socket.On(SendCode.Initial.ToString(), (JToken[] Data) =>
+            {
+                Debug.WriteLine("Client connected and Initial Message Recieved!!!!!!!!!!!!!!!!!");
+                Message msg = JsonNet.Deserialize<Message>(Data[0].ToString());
+                clients.Add(new Client(socket,msg.Ip, uiController));
+            });
+        }
+
+        /// <summary>
+        /// sends Message to given ip
+        /// </summary>
+        /// <param name="ip"> partner to send to </param>
+        /// <param name="msg"> to send </param>
+        public void sendMessage(String ip, String msg) 
+        {
+            this.getClient(ip).sendMessage(SendCode.Message, msg);
+        }
+
+        /// <summary>
+        /// returns own ip adress
+        /// </summary>
+        /// <returns></returns>
+        public IPAddress getIP()
+        {
+            IPHostEntry ipEntry = Dns.GetHostEntry(Dns.GetHostName());
+            IPAddress[] addrList = ipEntry.AddressList;
+
+            for (short i = 0; i < addrList.Length; i++)
+            {
+                if (addrList[i].ToString().Substring(0, 3).Equals("10."))
+                {
+                    return addrList[i];
+                }
+            }
+            return null;
+        }
+
+        public MainPage getUIController()
+        {
+            return this.uiController;
+        }
+
+
+        //=========================================================================================================================================================================================
+        //INTERNAL METHODS
+        //========================================================================================================================================================================================= 
+        private void startServer()
+        {
+            Server = new SocketIOServer(new SocketIOServerOption(Port));
+            Server.OnConnection((socket) => connectNewClient(socket));
+            Server.Start();
+            Debug.WriteLine($"Your ip is: {ownIP}");
+            Debug.WriteLine($"Server started, binding to port {Port}, waiting for connection...");
+        }
+
+        /// <summary>
+        /// returns client that fit to ip address
+        /// </summary>
+        /// <param name="ip"></param>
+        /// <returns></returns>
+        private Client getClient(String ip)
+        {
+            foreach (Client cl in clients)
+            {
+                if (cl.getIP().Equals(ip))
+                {
+                    return cl;
+                }
+            }
+            return null;
+        }
+    }
+}

PolyChat/Package.appxmanifest

@@ -5,7 +5,11 @@
   xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest"
   xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
   xmlns:uap3="http://schemas.microsoft.com/appx/manifest/uap/windows10/3"
-  IgnorableNamespaces="uap mp uap3">
+  xmlns:uap6="http://schemas.microsoft.com/appx/manifest/uap/windows10/6"
+  xmlns:iot="http://schemas.microsoft.com/appx/manifest/iot/windows10"
+  xmlns:uap4="http://schemas.microsoft.com/appx/manifest/uap/windows10/4"
+  xmlns:uap2="http://schemas.microsoft.com/appx/manifest/uap/windows10/2"
+  IgnorableNamespaces="uap mp uap3 uap6 iot uap4 uap2">
 
   <Identity
     Name="ee2ef4f2-e61b-497a-8f0e-9fa7c90234b1"
@@ -45,7 +49,42 @@
   </Applications>
 
   <Capabilities>
+    <Capability Name="internetClient" />
     <Capability Name="internetClientServer"/>
+    <Capability Name="allJoyn"/>
+    <uap:Capability Name="appointments"/>
+    <uap3:Capability Name="backgroundMediaPlayback"/>
+    <uap:Capability Name="blockedChatMessages"/>
+    <uap:Capability Name="chat"/>
+    <Capability Name="codeGeneration"/>
+    <uap:Capability Name="contacts"/>
+    <uap:Capability Name="enterpriseAuthentication"/>
+    <uap6:Capability Name="graphicsCapture"/>
+    <iot:Capability Name="lowLevelDevices"/>
+    <uap:Capability Name="musicLibrary"/>
+    <uap:Capability Name="objects3D"/>
+    <uap4:Capability Name="offlineMapsManagement"/>
+    <uap:Capability Name="phoneCall"/>
+    <uap2:Capability Name="phoneCallHistoryPublic"/>
+    <uap:Capability Name="picturesLibrary"/>
     <Capability Name="privateNetworkClientServer"/>
+    <uap3:Capability Name="remoteSystem"/>
+    <uap:Capability Name="removableStorage"/>
+    <uap:Capability Name="sharedUserCertificates"/>
+    <uap2:Capability Name="spatialPerception"/>
+    <iot:Capability Name="systemManagement"/>
+    <uap:Capability Name="userAccountInformation"/>
+    <uap3:Capability Name="userNotificationListener"/>
+    <uap:Capability Name="videosLibrary"/>
+    <uap:Capability Name="voipCall"/>
+    <uap4:Capability Name="userDataTasks"/>
+    <DeviceCapability Name="bluetooth"/>
+    <DeviceCapability Name="gazeInput"/>
+    <DeviceCapability Name="lowLevel"/>
+    <DeviceCapability Name="microphone"/>
+    <DeviceCapability Name="location"/>
+    <DeviceCapability Name="pointOfService"/>
+    <DeviceCapability Name="proximity"/>
+    <DeviceCapability Name="webcam"/>
   </Capabilities>
 </Package>

README.md

@@ -0,0 +1,20 @@
+# Polychat 
+![Logo](PolyChat/Assets/polychat_logo.svg "Logo")
+serverless chat app written in c# using [`SocketIOSharp`](https://github.com/uhm0311/SocketIOSharp) & `UWP`
+
+### Features:
+- chat is not dependent on server, every client can be a server
+- chatpartner discovery over ip address
+- set username to be shown to chatpartners
+- save chat history to local disk (encrypted)
+- dark mode ;)
+
+### Implentation:
+- network connection via the library [`SocketIOSharp`](https://github.com/uhm0311/SocketIOSharp)
+- graphical user interface uses `UWP` (Universal Windows App)
+- messages are sent via json
+- chat history gets saved as json after encryption
+
+### Screenshots:
+![light mode](screenshots/polychat_light.PNG "light mode")
+![dark mode](screenshots/polychat_dark.PNG "dark mode")