├── Temp.txt
├── Chat-app Client
    ├── Resources
    │   ├── file.png
    │   └── send.png
    ├── Program.cs
    ├── Chat-app Client.csproj
    ├── GroupCreator.cs
    ├── ImageView.cs
    ├── Login.resx
    ├── Signin.resx
    ├── GroupCreator.resx
    ├── ImageView.resx
    ├── ImageView.Designer.cs
    ├── Properties
    │   ├── Resources.Designer.cs
    │   └── Resources.resx
    ├── Signin.cs
    ├── Login.cs
    ├── GroupCreator.Designer.cs
    ├── Login.Designer.cs
    ├── Signin.Designer.cs
    ├── ChatBox.Designer.cs
    └── ChatBox.cs
├── Communicator
    ├── Communicator.csproj
    ├── Json.cs
    ├── Group.cs
    ├── Startup.cs
    ├── Account.cs
    ├── BufferFile.cs
    ├── Messages.cs
    └── FileMessage.cs
├── Chat-app Server
    ├── Chat-app Server.csproj
    ├── Program.cs
    ├── Server.resx
    ├── Server.Designer.cs
    └── Server.cs
├── README.md
├── Chat-app.sln
├── .gitattributes
└── .gitignore


/Temp.txt:
--------------------------------------------------------------------------------
1 | 


--------------------------------------------------------------------------------
/Chat-app Client/Resources/file.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/trinhvinhphuc/Chat-app/HEAD/Chat-app Client/Resources/file.png


--------------------------------------------------------------------------------
/Chat-app Client/Resources/send.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/trinhvinhphuc/Chat-app/HEAD/Chat-app Client/Resources/send.png


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/Communicator/Communicator.csproj:
--------------------------------------------------------------------------------
 1 | <Project Sdk="Microsoft.NET.Sdk">
 2 | 
 3 |   <PropertyGroup>
 4 |     <TargetFramework>net6.0</TargetFramework>
 5 |     <ImplicitUsings>enable</ImplicitUsings>
 6 |     <Nullable>enable</Nullable>
 7 |   </PropertyGroup>
 8 | 
 9 | </Project>
10 | 


--------------------------------------------------------------------------------
/Communicator/Json.cs:
--------------------------------------------------------------------------------
 1 | namespace Communicator
 2 | {
 3 |     public class Json
 4 |     {
 5 |         public String type { get; set; }
 6 |         public String content { get; set; }
 7 |         public Json(String type, String content)
 8 |         {
 9 |             this.type = type;
10 |             this.content = content;
11 |         }
12 |     }
13 | }


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/Communicator/Group.cs:
--------------------------------------------------------------------------------
 1 | namespace Communicator
 2 | {
 3 |     public class Group
 4 |     {
 5 |         public String name { get; set; }
 6 |         public String members { get; set; }
 7 |         public Group(string name, string members)
 8 |         {
 9 |             this.name = name;
10 |             this.members = members;
11 |         }
12 |     }
13 | }
14 | 


--------------------------------------------------------------------------------
/Communicator/Startup.cs:
--------------------------------------------------------------------------------
 1 | namespace Communicator
 2 | {
 3 |     public class Startup
 4 |     {
 5 |         public String onlUser { get; set; }
 6 |         public String group { get; set; }
 7 |         public Startup(String onlUser, String group)
 8 |         {
 9 |             this.onlUser = onlUser;
10 |             this.group = group;
11 |         }
12 |     }
13 | }
14 | 


--------------------------------------------------------------------------------
/Communicator/Account.cs:
--------------------------------------------------------------------------------
 1 | namespace Communicator
 2 | {
 3 |     public class Account
 4 |     {
 5 |         public string userName { get; set; }
 6 |         public string password { get; set; }
 7 |         public Account(string userName, string password)
 8 |         {
 9 |             this.userName = userName;
10 |             this.password = password;
11 |         }
12 |     }
13 | }
14 | 


--------------------------------------------------------------------------------
/Chat-app Server/Chat-app Server.csproj:
--------------------------------------------------------------------------------
 1 | <Project Sdk="Microsoft.NET.Sdk">
 2 | 
 3 |   <PropertyGroup>
 4 |     <OutputType>WinExe</OutputType>
 5 |     <TargetFramework>net6.0-windows</TargetFramework>
 6 |     <RootNamespace>Chat_app_Server</RootNamespace>
 7 |     <Nullable>enable</Nullable>
 8 |     <UseWindowsForms>true</UseWindowsForms>
 9 |     <ImplicitUsings>enable</ImplicitUsings>
10 |   </PropertyGroup>
11 | 
12 |   <ItemGroup>
13 |     <ProjectReference Include="..\Communicator\Communicator.csproj" />
14 |   </ItemGroup>
15 | 
16 | </Project>


--------------------------------------------------------------------------------
/Chat-app Client/Program.cs:
--------------------------------------------------------------------------------
 1 | namespace Chat_app_Client
 2 | {
 3 |     internal static class Program
 4 |     {
 5 |         /// <summary>
 6 |         ///  The main entry point for the application.
 7 |         /// </summary>
 8 |         [STAThread]
 9 |         static void Main()
10 |         {
11 |             // To customize application configuration such as set high DPI settings or default font,
12 |             // see https://aka.ms/applicationconfiguration.
13 |             ApplicationConfiguration.Initialize();
14 |             Application.Run(new Login());
15 |         }
16 |     }
17 | }


--------------------------------------------------------------------------------
/Chat-app Server/Program.cs:
--------------------------------------------------------------------------------
 1 | namespace Chat_app_Server
 2 | {
 3 |     internal static class Program
 4 |     {
 5 |         /// <summary>
 6 |         ///  The main entry point for the application.
 7 |         /// </summary>
 8 |         [STAThread]
 9 |         static void Main()
10 |         {
11 |             // To customize application configuration such as set high DPI settings or default font,
12 |             // see https://aka.ms/applicationconfiguration.
13 |             ApplicationConfiguration.Initialize();
14 |             Application.Run(new Server());
15 |         }
16 |     }
17 | }


--------------------------------------------------------------------------------
/Communicator/BufferFile.cs:
--------------------------------------------------------------------------------
 1 | namespace Communicator
 2 | {
 3 |     public class BufferFile
 4 |     {
 5 |         public String sender { get; set; }
 6 |         public String receiver { get; set; }
 7 |         public byte[] buffer { get; set; }
 8 |         public String extension { get; set; }
 9 |         public BufferFile(string sender, string receiver, byte[] buffer, string extension)
10 |         {
11 |             this.sender = sender;
12 |             this.receiver = receiver;
13 |             this.buffer = buffer;
14 |             this.extension = extension;
15 |         }
16 |     }
17 | }
18 | 


--------------------------------------------------------------------------------
/Communicator/Messages.cs:
--------------------------------------------------------------------------------
 1 | using System.Text.Json.Serialization;
 2 | 
 3 | namespace Communicator
 4 | {
 5 |     public class Messages
 6 |     {
 7 |         public String sender { get; set; }
 8 |         public String receiver { get; set; }
 9 |         public String message { get; set; }
10 |         public Messages(String sender, String recerver, String message)
11 |         {
12 |             this.sender = sender;
13 |             this.receiver = recerver;
14 |             this.message = message;
15 |         }
16 |         [JsonConstructor]
17 |         public Messages() { }
18 |     }
19 | }
20 | 


--------------------------------------------------------------------------------
/Communicator/FileMessage.cs:
--------------------------------------------------------------------------------
 1 | namespace Communicator
 2 | {
 3 |     public class FileMessage
 4 |     {
 5 |         public String sender { get; set; }
 6 |         public String receiver { get; set; }
 7 |         public String lenght { get; set; }
 8 |         public String extension { get; set; }
 9 |         public FileMessage(string sender, string receiver, string lenght, string extension)
10 |         {
11 |             this.sender = sender;
12 |             this.receiver = receiver;
13 |             this.lenght = lenght;
14 |             this.extension = extension;
15 |         }
16 |     }
17 | }
18 | 


--------------------------------------------------------------------------------
/Chat-app Client/Chat-app Client.csproj:
--------------------------------------------------------------------------------
 1 | <Project Sdk="Microsoft.NET.Sdk">
 2 | 
 3 |   <PropertyGroup>
 4 |     <OutputType>WinExe</OutputType>
 5 |     <TargetFramework>net6.0-windows</TargetFramework>
 6 |     <RootNamespace>Chat_app_Client</RootNamespace>
 7 |     <Nullable>enable</Nullable>
 8 |     <UseWindowsForms>true</UseWindowsForms>
 9 |     <ImplicitUsings>enable</ImplicitUsings>
10 |   </PropertyGroup>
11 | 
12 |   <ItemGroup>
13 |     <ProjectReference Include="..\Communicator\Communicator.csproj" />
14 |   </ItemGroup>
15 | 
16 |   <ItemGroup>
17 |     <Compile Update="Properties\Resources.Designer.cs">
18 |       <DesignTime>True</DesignTime>
19 |       <AutoGen>True</AutoGen>
20 |       <DependentUpon>Resources.resx</DependentUpon>
21 |     </Compile>
22 |   </ItemGroup>
23 | 
24 |   <ItemGroup>
25 |     <EmbeddedResource Update="Properties\Resources.resx">
26 |       <Generator>ResXFileCodeGenerator</Generator>
27 |       <LastGenOutput>Resources.Designer.cs</LastGenOutput>
28 |     </EmbeddedResource>
29 |   </ItemGroup>
30 | 
31 | </Project>


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Chat-App using Socket in C#
 2 | This is a simple chat application built using socket programming in C#. It allows users to connect to a server and communicate with each other via text messages.
 3 | 
 4 | ## Requirements
 5 | To run this application, you will need:
 6 | 
 7 | - Visual Studio (2019 or later)
 8 | - .NET Framework 6
 9 | 
10 | ## Usage
11 | To use the chat application, follow these steps:
12 | 
13 | 1. Clone the repository to your local machine.
14 | 2. Open the solution file (Chat-app.sln) in Visual Studio.
15 | 3. Build the solution.
16 | 4. Start the server by running the Server project.
17 | 5. Start multiple instances of the client by running the Client project.
18 | 6. Connect to the server by entering the IP address and port number of the server in the client UI.
19 | 7. Once connected, you can send messages to other connected clients.
20 | 
21 | ## Features
22 | The chat application has the following features:
23 | 
24 | - Multiple clients can connect to the server and communicate with each other.
25 | - Each client can send and receive messages in real-time.
26 | 
27 | ## Architecture
28 | The chat application uses a simple client-server architecture. The server listens for incoming connections on a specified port number. When a client connects, the server creates a new thread to handle the client's requests. Each client is identified by a unique ID.
29 | 
30 | The communication between the client and server is done using a TCP socket. Messages are sent as byte arrays and are encoded and decoded using the UTF-8 encoding.
31 | 


--------------------------------------------------------------------------------
/Chat-app Client/GroupCreator.cs:
--------------------------------------------------------------------------------
 1 | using Communicator;
 2 | using System;
 3 | using System.Collections.Generic;
 4 | using System.ComponentModel;
 5 | using System.Data;
 6 | using System.Drawing;
 7 | using System.IO;
 8 | using System.Linq;
 9 | using System.Net.Sockets;
10 | using System.Text;
11 | using System.Text.Json;
12 | using System.Threading.Tasks;
13 | using System.Windows.Forms;
14 | 
15 | namespace Chat_app_Client
16 | {
17 |     public partial class GroupCreator : Form
18 |     {
19 |         private TcpClient server;
20 |         public GroupCreator(TcpClient server)
21 |         {
22 |             this.server = server;
23 |             InitializeComponent();
24 |         }
25 | 
26 |         private void btnCreate_Click(object sender, EventArgs e)
27 |         {
28 |             if (txtGroupName.Text == "" || txtMembers.Text == "")
29 |             {
30 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
31 |                 return;
32 |             }
33 |             StreamWriter streamWriter = new StreamWriter(server.GetStream());
34 | 
35 |             Group group = new Group(txtGroupName.Text, txtMembers.Text);
36 |             String jsonString = JsonSerializer.Serialize(group);
37 |             Json json = new Json("CREATE_GROUP", jsonString);
38 | 
39 |             byte[] jsonUtf8Bytes = JsonSerializer.SerializeToUtf8Bytes(json);
40 |             String S = Encoding.ASCII.GetString(jsonUtf8Bytes, 0, jsonUtf8Bytes.Length);
41 | 
42 |             streamWriter.WriteLine(S);
43 |             streamWriter.Flush();
44 | 
45 |             this.Close();
46 |         }
47 |     }
48 | }
49 | 


--------------------------------------------------------------------------------
/Chat-app Client/ImageView.cs:
--------------------------------------------------------------------------------
 1 | using Communicator;
 2 | using System;
 3 | using System.Collections.Generic;
 4 | using System.ComponentModel;
 5 | using System.Data;
 6 | using System.Drawing;
 7 | using System.Linq;
 8 | using System.Text;
 9 | using System.Threading.Tasks;
10 | using System.Windows.Forms;
11 | 
12 | namespace Chat_app_Client
13 | {
14 |     public partial class ImageView : Form
15 |     {
16 |         private BufferFile bufferFile;
17 | 
18 |         public ImageView(BufferFile bufferFile)
19 |         {
20 |             this.bufferFile = bufferFile;
21 |             InitializeComponent();
22 |             this.Text = bufferFile.receiver + " - Picture from " + bufferFile.sender;
23 |         }
24 | 
25 |         private void ImageView_Load(object sender, EventArgs e)
26 |         {
27 |             pictureBox1.Image = Image.FromStream(new MemoryStream(bufferFile.buffer));
28 |         }
29 | 
30 |         private void btnCreate_Click(object sender, EventArgs e)
31 |         {
32 |             string fileName = @Environment.CurrentDirectory + "/" + String.Format("{0:yyyy-MM-dd HH-mm-ss}__{1}", DateTime.Now, bufferFile.sender) + bufferFile.extension;
33 |             FileInfo fi = new FileInfo(fileName);
34 | 
35 |             try
36 |             {
37 |                 // Check if file already exists. If yes, delete it.     
38 |                 if (fi.Exists)
39 |                 {
40 |                     fi.Delete();
41 |                 }
42 | 
43 |                 using (FileStream fStream = File.Create(fileName))
44 |                 {
45 |                     fStream.Write(bufferFile.buffer, 0, bufferFile.buffer.Length);
46 |                     fStream.Flush();
47 |                     fStream.Close();
48 |                 }
49 |             }
50 |             catch (Exception Ex)
51 |             {
52 |                 Console.WriteLine(Ex.ToString());
53 |             }
54 | 
55 |             this.Close();
56 |         }
57 |     }
58 | }
59 | 


--------------------------------------------------------------------------------
/Chat-app.sln:
--------------------------------------------------------------------------------
 1 | 
 2 | Microsoft Visual Studio Solution File, Format Version 12.00
 3 | # Visual Studio Version 17
 4 | VisualStudioVersion = 17.3.32825.248
 5 | MinimumVisualStudioVersion = 10.0.40219.1
 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Chat-app Client", "Chat-app Client\Chat-app Client.csproj", "{9398E58C-5FF7-4D37-8771-D6831E3ECE84}"
 7 | EndProject
 8 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Communicator", "Communicator\Communicator.csproj", "{F365EE51-E430-4337-9FC1-F018B38B0B3A}"
 9 | EndProject
10 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Chat-app Server", "Chat-app Server\Chat-app Server.csproj", "{99D65DE9-5E8E-471E-8218-DA4364D33766}"
11 | EndProject
12 | Global
13 | 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
14 | 		Debug|Any CPU = Debug|Any CPU
15 | 		Release|Any CPU = Release|Any CPU
16 | 	EndGlobalSection
17 | 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
18 | 		{9398E58C-5FF7-4D37-8771-D6831E3ECE84}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
19 | 		{9398E58C-5FF7-4D37-8771-D6831E3ECE84}.Debug|Any CPU.Build.0 = Debug|Any CPU
20 | 		{9398E58C-5FF7-4D37-8771-D6831E3ECE84}.Release|Any CPU.ActiveCfg = Release|Any CPU
21 | 		{9398E58C-5FF7-4D37-8771-D6831E3ECE84}.Release|Any CPU.Build.0 = Release|Any CPU
22 | 		{F365EE51-E430-4337-9FC1-F018B38B0B3A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
23 | 		{F365EE51-E430-4337-9FC1-F018B38B0B3A}.Debug|Any CPU.Build.0 = Debug|Any CPU
24 | 		{F365EE51-E430-4337-9FC1-F018B38B0B3A}.Release|Any CPU.ActiveCfg = Release|Any CPU
25 | 		{F365EE51-E430-4337-9FC1-F018B38B0B3A}.Release|Any CPU.Build.0 = Release|Any CPU
26 | 		{99D65DE9-5E8E-471E-8218-DA4364D33766}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
27 | 		{99D65DE9-5E8E-471E-8218-DA4364D33766}.Debug|Any CPU.Build.0 = Debug|Any CPU
28 | 		{99D65DE9-5E8E-471E-8218-DA4364D33766}.Release|Any CPU.ActiveCfg = Release|Any CPU
29 | 		{99D65DE9-5E8E-471E-8218-DA4364D33766}.Release|Any CPU.Build.0 = Release|Any CPU
30 | 	EndGlobalSection
31 | 	GlobalSection(SolutionProperties) = preSolution
32 | 		HideSolutionNode = FALSE
33 | 	EndGlobalSection
34 | 	GlobalSection(ExtensibilityGlobals) = postSolution
35 | 		SolutionGuid = {A440391D-17B2-4C86-B2CD-72C28F70B2F3}
36 | 	EndGlobalSection
37 | EndGlobal
38 | 


--------------------------------------------------------------------------------
/.gitattributes:
--------------------------------------------------------------------------------
 1 | ###############################################################################
 2 | # Set default behavior to automatically normalize line endings.
 3 | ###############################################################################
 4 | * text=auto
 5 | 
 6 | ###############################################################################
 7 | # Set default behavior for command prompt diff.
 8 | #
 9 | # This is need for earlier builds of msysgit that does not have it on by
10 | # default for csharp files.
11 | # Note: This is only used by command line
12 | ###############################################################################
13 | #*.cs     diff=csharp
14 | 
15 | ###############################################################################
16 | # Set the merge driver for project and solution files
17 | #
18 | # Merging from the command prompt will add diff markers to the files if there
19 | # are conflicts (Merging from VS is not affected by the settings below, in VS
20 | # the diff markers are never inserted). Diff markers may cause the following 
21 | # file extensions to fail to load in VS. An alternative would be to treat
22 | # these files as binary and thus will always conflict and require user
23 | # intervention with every merge. To do so, just uncomment the entries below
24 | ###############################################################################
25 | #*.sln       merge=binary
26 | #*.csproj    merge=binary
27 | #*.vbproj    merge=binary
28 | #*.vcxproj   merge=binary
29 | #*.vcproj    merge=binary
30 | #*.dbproj    merge=binary
31 | #*.fsproj    merge=binary
32 | #*.lsproj    merge=binary
33 | #*.wixproj   merge=binary
34 | #*.modelproj merge=binary
35 | #*.sqlproj   merge=binary
36 | #*.wwaproj   merge=binary
37 | 
38 | ###############################################################################
39 | # behavior for image files
40 | #
41 | # image files are treated as binary by default.
42 | ###############################################################################
43 | #*.jpg   binary
44 | #*.png   binary
45 | #*.gif   binary
46 | 
47 | ###############################################################################
48 | # diff behavior for common document formats
49 | # 
50 | # Convert binary document formats to text before diffing them. This feature
51 | # is only available from the command line. Turn it on by uncommenting the 
52 | # entries below.
53 | ###############################################################################
54 | #*.doc   diff=astextplain
55 | #*.DOC   diff=astextplain
56 | #*.docx  diff=astextplain
57 | #*.DOCX  diff=astextplain
58 | #*.dot   diff=astextplain
59 | #*.DOT   diff=astextplain
60 | #*.pdf   diff=astextplain
61 | #*.PDF   diff=astextplain
62 | #*.rtf   diff=astextplain
63 | #*.RTF   diff=astextplain
64 | 


--------------------------------------------------------------------------------
/Chat-app Client/Login.resx:
--------------------------------------------------------------------------------
 1 | <root>
 2 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 3 |     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
 4 |     <xsd:element name="root" msdata:IsDataSet="true">
 5 |       <xsd:complexType>
 6 |         <xsd:choice maxOccurs="unbounded">
 7 |           <xsd:element name="metadata">
 8 |             <xsd:complexType>
 9 |               <xsd:sequence>
10 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
11 |               </xsd:sequence>
12 |               <xsd:attribute name="name" use="required" type="xsd:string" />
13 |               <xsd:attribute name="type" type="xsd:string" />
14 |               <xsd:attribute name="mimetype" type="xsd:string" />
15 |               <xsd:attribute ref="xml:space" />
16 |             </xsd:complexType>
17 |           </xsd:element>
18 |           <xsd:element name="assembly">
19 |             <xsd:complexType>
20 |               <xsd:attribute name="alias" type="xsd:string" />
21 |               <xsd:attribute name="name" type="xsd:string" />
22 |             </xsd:complexType>
23 |           </xsd:element>
24 |           <xsd:element name="data">
25 |             <xsd:complexType>
26 |               <xsd:sequence>
27 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
28 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
29 |               </xsd:sequence>
30 |               <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
31 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
32 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
33 |               <xsd:attribute ref="xml:space" />
34 |             </xsd:complexType>
35 |           </xsd:element>
36 |           <xsd:element name="resheader">
37 |             <xsd:complexType>
38 |               <xsd:sequence>
39 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
40 |               </xsd:sequence>
41 |               <xsd:attribute name="name" type="xsd:string" use="required" />
42 |             </xsd:complexType>
43 |           </xsd:element>
44 |         </xsd:choice>
45 |       </xsd:complexType>
46 |     </xsd:element>
47 |   </xsd:schema>
48 |   <resheader name="resmimetype">
49 |     <value>text/microsoft-resx</value>
50 |   </resheader>
51 |   <resheader name="version">
52 |     <value>2.0</value>
53 |   </resheader>
54 |   <resheader name="reader">
55 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
56 |   </resheader>
57 |   <resheader name="writer">
58 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
59 |   </resheader>
60 | </root>


--------------------------------------------------------------------------------
/Chat-app Client/Signin.resx:
--------------------------------------------------------------------------------
 1 | <root>
 2 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 3 |     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
 4 |     <xsd:element name="root" msdata:IsDataSet="true">
 5 |       <xsd:complexType>
 6 |         <xsd:choice maxOccurs="unbounded">
 7 |           <xsd:element name="metadata">
 8 |             <xsd:complexType>
 9 |               <xsd:sequence>
10 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
11 |               </xsd:sequence>
12 |               <xsd:attribute name="name" use="required" type="xsd:string" />
13 |               <xsd:attribute name="type" type="xsd:string" />
14 |               <xsd:attribute name="mimetype" type="xsd:string" />
15 |               <xsd:attribute ref="xml:space" />
16 |             </xsd:complexType>
17 |           </xsd:element>
18 |           <xsd:element name="assembly">
19 |             <xsd:complexType>
20 |               <xsd:attribute name="alias" type="xsd:string" />
21 |               <xsd:attribute name="name" type="xsd:string" />
22 |             </xsd:complexType>
23 |           </xsd:element>
24 |           <xsd:element name="data">
25 |             <xsd:complexType>
26 |               <xsd:sequence>
27 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
28 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
29 |               </xsd:sequence>
30 |               <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
31 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
32 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
33 |               <xsd:attribute ref="xml:space" />
34 |             </xsd:complexType>
35 |           </xsd:element>
36 |           <xsd:element name="resheader">
37 |             <xsd:complexType>
38 |               <xsd:sequence>
39 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
40 |               </xsd:sequence>
41 |               <xsd:attribute name="name" type="xsd:string" use="required" />
42 |             </xsd:complexType>
43 |           </xsd:element>
44 |         </xsd:choice>
45 |       </xsd:complexType>
46 |     </xsd:element>
47 |   </xsd:schema>
48 |   <resheader name="resmimetype">
49 |     <value>text/microsoft-resx</value>
50 |   </resheader>
51 |   <resheader name="version">
52 |     <value>2.0</value>
53 |   </resheader>
54 |   <resheader name="reader">
55 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
56 |   </resheader>
57 |   <resheader name="writer">
58 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
59 |   </resheader>
60 | </root>


--------------------------------------------------------------------------------
/Chat-app Server/Server.resx:
--------------------------------------------------------------------------------
 1 | <root>
 2 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 3 |     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
 4 |     <xsd:element name="root" msdata:IsDataSet="true">
 5 |       <xsd:complexType>
 6 |         <xsd:choice maxOccurs="unbounded">
 7 |           <xsd:element name="metadata">
 8 |             <xsd:complexType>
 9 |               <xsd:sequence>
10 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
11 |               </xsd:sequence>
12 |               <xsd:attribute name="name" use="required" type="xsd:string" />
13 |               <xsd:attribute name="type" type="xsd:string" />
14 |               <xsd:attribute name="mimetype" type="xsd:string" />
15 |               <xsd:attribute ref="xml:space" />
16 |             </xsd:complexType>
17 |           </xsd:element>
18 |           <xsd:element name="assembly">
19 |             <xsd:complexType>
20 |               <xsd:attribute name="alias" type="xsd:string" />
21 |               <xsd:attribute name="name" type="xsd:string" />
22 |             </xsd:complexType>
23 |           </xsd:element>
24 |           <xsd:element name="data">
25 |             <xsd:complexType>
26 |               <xsd:sequence>
27 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
28 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
29 |               </xsd:sequence>
30 |               <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
31 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
32 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
33 |               <xsd:attribute ref="xml:space" />
34 |             </xsd:complexType>
35 |           </xsd:element>
36 |           <xsd:element name="resheader">
37 |             <xsd:complexType>
38 |               <xsd:sequence>
39 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
40 |               </xsd:sequence>
41 |               <xsd:attribute name="name" type="xsd:string" use="required" />
42 |             </xsd:complexType>
43 |           </xsd:element>
44 |         </xsd:choice>
45 |       </xsd:complexType>
46 |     </xsd:element>
47 |   </xsd:schema>
48 |   <resheader name="resmimetype">
49 |     <value>text/microsoft-resx</value>
50 |   </resheader>
51 |   <resheader name="version">
52 |     <value>2.0</value>
53 |   </resheader>
54 |   <resheader name="reader">
55 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
56 |   </resheader>
57 |   <resheader name="writer">
58 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
59 |   </resheader>
60 | </root>


--------------------------------------------------------------------------------
/Chat-app Client/GroupCreator.resx:
--------------------------------------------------------------------------------
 1 | <root>
 2 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 3 |     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
 4 |     <xsd:element name="root" msdata:IsDataSet="true">
 5 |       <xsd:complexType>
 6 |         <xsd:choice maxOccurs="unbounded">
 7 |           <xsd:element name="metadata">
 8 |             <xsd:complexType>
 9 |               <xsd:sequence>
10 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
11 |               </xsd:sequence>
12 |               <xsd:attribute name="name" use="required" type="xsd:string" />
13 |               <xsd:attribute name="type" type="xsd:string" />
14 |               <xsd:attribute name="mimetype" type="xsd:string" />
15 |               <xsd:attribute ref="xml:space" />
16 |             </xsd:complexType>
17 |           </xsd:element>
18 |           <xsd:element name="assembly">
19 |             <xsd:complexType>
20 |               <xsd:attribute name="alias" type="xsd:string" />
21 |               <xsd:attribute name="name" type="xsd:string" />
22 |             </xsd:complexType>
23 |           </xsd:element>
24 |           <xsd:element name="data">
25 |             <xsd:complexType>
26 |               <xsd:sequence>
27 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
28 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
29 |               </xsd:sequence>
30 |               <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
31 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
32 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
33 |               <xsd:attribute ref="xml:space" />
34 |             </xsd:complexType>
35 |           </xsd:element>
36 |           <xsd:element name="resheader">
37 |             <xsd:complexType>
38 |               <xsd:sequence>
39 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
40 |               </xsd:sequence>
41 |               <xsd:attribute name="name" type="xsd:string" use="required" />
42 |             </xsd:complexType>
43 |           </xsd:element>
44 |         </xsd:choice>
45 |       </xsd:complexType>
46 |     </xsd:element>
47 |   </xsd:schema>
48 |   <resheader name="resmimetype">
49 |     <value>text/microsoft-resx</value>
50 |   </resheader>
51 |   <resheader name="version">
52 |     <value>2.0</value>
53 |   </resheader>
54 |   <resheader name="reader">
55 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
56 |   </resheader>
57 |   <resheader name="writer">
58 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
59 |   </resheader>
60 | </root>


--------------------------------------------------------------------------------
/Chat-app Client/ImageView.resx:
--------------------------------------------------------------------------------
 1 | <root>
 2 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 3 |     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
 4 |     <xsd:element name="root" msdata:IsDataSet="true">
 5 |       <xsd:complexType>
 6 |         <xsd:choice maxOccurs="unbounded">
 7 |           <xsd:element name="metadata">
 8 |             <xsd:complexType>
 9 |               <xsd:sequence>
10 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
11 |               </xsd:sequence>
12 |               <xsd:attribute name="name" use="required" type="xsd:string" />
13 |               <xsd:attribute name="type" type="xsd:string" />
14 |               <xsd:attribute name="mimetype" type="xsd:string" />
15 |               <xsd:attribute ref="xml:space" />
16 |             </xsd:complexType>
17 |           </xsd:element>
18 |           <xsd:element name="assembly">
19 |             <xsd:complexType>
20 |               <xsd:attribute name="alias" type="xsd:string" />
21 |               <xsd:attribute name="name" type="xsd:string" />
22 |             </xsd:complexType>
23 |           </xsd:element>
24 |           <xsd:element name="data">
25 |             <xsd:complexType>
26 |               <xsd:sequence>
27 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
28 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
29 |               </xsd:sequence>
30 |               <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
31 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
32 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
33 |               <xsd:attribute ref="xml:space" />
34 |             </xsd:complexType>
35 |           </xsd:element>
36 |           <xsd:element name="resheader">
37 |             <xsd:complexType>
38 |               <xsd:sequence>
39 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
40 |               </xsd:sequence>
41 |               <xsd:attribute name="name" type="xsd:string" use="required" />
42 |             </xsd:complexType>
43 |           </xsd:element>
44 |         </xsd:choice>
45 |       </xsd:complexType>
46 |     </xsd:element>
47 |   </xsd:schema>
48 |   <resheader name="resmimetype">
49 |     <value>text/microsoft-resx</value>
50 |   </resheader>
51 |   <resheader name="version">
52 |     <value>2.0</value>
53 |   </resheader>
54 |   <resheader name="reader">
55 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
56 |   </resheader>
57 |   <resheader name="writer">
58 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
59 |   </resheader>
60 | </root>


--------------------------------------------------------------------------------
/Chat-app Client/ImageView.Designer.cs:
--------------------------------------------------------------------------------
 1 | namespace Chat_app_Client
 2 | {
 3 |     partial class ImageView
 4 |     {
 5 |         /// <summary>
 6 |         /// Required designer variable.
 7 |         /// </summary>
 8 |         private System.ComponentModel.IContainer components = null;
 9 | 
10 |         /// <summary>
11 |         /// Clean up any resources being used.
12 |         /// </summary>
13 |         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
14 |         protected override void Dispose(bool disposing)
15 |         {
16 |             if (disposing && (components != null))
17 |             {
18 |                 components.Dispose();
19 |             }
20 |             base.Dispose(disposing);
21 |         }
22 | 
23 |         #region Windows Form Designer generated code
24 | 
25 |         /// <summary>
26 |         /// Required method for Designer support - do not modify
27 |         /// the contents of this method with the code editor.
28 |         /// </summary>
29 |         private void InitializeComponent()
30 |         {
31 |             this.pictureBox1 = new System.Windows.Forms.PictureBox();
32 |             this.btnCreate = new System.Windows.Forms.Button();
33 |             ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
34 |             this.SuspendLayout();
35 |             // 
36 |             // pictureBox1
37 |             // 
38 |             this.pictureBox1.Location = new System.Drawing.Point(12, 12);
39 |             this.pictureBox1.Name = "pictureBox1";
40 |             this.pictureBox1.Size = new System.Drawing.Size(413, 278);
41 |             this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
42 |             this.pictureBox1.TabIndex = 0;
43 |             this.pictureBox1.TabStop = false;
44 |             // 
45 |             // btnCreate
46 |             // 
47 |             this.btnCreate.BackColor = System.Drawing.Color.RosyBrown;
48 |             this.btnCreate.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
49 |             this.btnCreate.Font = new System.Drawing.Font("Times New Roman", 11.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
50 |             this.btnCreate.ForeColor = System.Drawing.Color.Maroon;
51 |             this.btnCreate.Location = new System.Drawing.Point(128, 296);
52 |             this.btnCreate.Name = "btnCreate";
53 |             this.btnCreate.Size = new System.Drawing.Size(170, 27);
54 |             this.btnCreate.TabIndex = 30;
55 |             this.btnCreate.Text = "Download";
56 |             this.btnCreate.UseVisualStyleBackColor = false;
57 |             this.btnCreate.Click += new System.EventHandler(this.btnCreate_Click);
58 |             // 
59 |             // ImageView
60 |             // 
61 |             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
62 |             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
63 |             this.ClientSize = new System.Drawing.Size(440, 330);
64 |             this.Controls.Add(this.btnCreate);
65 |             this.Controls.Add(this.pictureBox1);
66 |             this.Name = "ImageView";
67 |             this.Text = "Image View";
68 |             this.Load += new System.EventHandler(this.ImageView_Load);
69 |             ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
70 |             this.ResumeLayout(false);
71 | 
72 |         }
73 | 
74 |         #endregion
75 | 
76 |         private PictureBox pictureBox1;
77 |         private Button btnCreate;
78 |     }
79 | }


--------------------------------------------------------------------------------
/Chat-app Client/Properties/Resources.Designer.cs:
--------------------------------------------------------------------------------
 1 | //------------------------------------------------------------------------------
 2 | // <auto-generated>
 3 | //     This code was generated by a tool.
 4 | //     Runtime Version:4.0.30319.42000
 5 | //
 6 | //     Changes to this file may cause incorrect behavior and will be lost if
 7 | //     the code is regenerated.
 8 | // </auto-generated>
 9 | //------------------------------------------------------------------------------
10 | 
11 | namespace Chat_app_Client.Properties {
12 |     using System;
13 |     
14 |     
15 |     /// <summary>
16 |     ///   A strongly-typed resource class, for looking up localized strings, etc.
17 |     /// </summary>
18 |     // This class was auto-generated by the StronglyTypedResourceBuilder
19 |     // class via a tool like ResGen or Visual Studio.
20 |     // To add or remove a member, edit your .ResX file then rerun ResGen
21 |     // with the /str option, or rebuild your VS project.
22 |     [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
23 |     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
24 |     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
25 |     internal class Resources {
26 |         
27 |         private static global::System.Resources.ResourceManager resourceMan;
28 |         
29 |         private static global::System.Globalization.CultureInfo resourceCulture;
30 |         
31 |         [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
32 |         internal Resources() {
33 |         }
34 |         
35 |         /// <summary>
36 |         ///   Returns the cached ResourceManager instance used by this class.
37 |         /// </summary>
38 |         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
39 |         internal static global::System.Resources.ResourceManager ResourceManager {
40 |             get {
41 |                 if (object.ReferenceEquals(resourceMan, null)) {
42 |                     global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Chat_app_Client.Properties.Resources", typeof(Resources).Assembly);
43 |                     resourceMan = temp;
44 |                 }
45 |                 return resourceMan;
46 |             }
47 |         }
48 |         
49 |         /// <summary>
50 |         ///   Overrides the current thread's CurrentUICulture property for all
51 |         ///   resource lookups using this strongly typed resource class.
52 |         /// </summary>
53 |         [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
54 |         internal static global::System.Globalization.CultureInfo Culture {
55 |             get {
56 |                 return resourceCulture;
57 |             }
58 |             set {
59 |                 resourceCulture = value;
60 |             }
61 |         }
62 |         
63 |         /// <summary>
64 |         ///   Looks up a localized resource of type System.Drawing.Bitmap.
65 |         /// </summary>
66 |         internal static System.Drawing.Bitmap file {
67 |             get {
68 |                 object obj = ResourceManager.GetObject("file", resourceCulture);
69 |                 return ((System.Drawing.Bitmap)(obj));
70 |             }
71 |         }
72 |         
73 |         /// <summary>
74 |         ///   Looks up a localized resource of type System.Drawing.Bitmap.
75 |         /// </summary>
76 |         internal static System.Drawing.Bitmap send {
77 |             get {
78 |                 object obj = ResourceManager.GetObject("send", resourceCulture);
79 |                 return ((System.Drawing.Bitmap)(obj));
80 |             }
81 |         }
82 |     }
83 | }
84 | 


--------------------------------------------------------------------------------
/Chat-app Client/Signin.cs:
--------------------------------------------------------------------------------
  1 | using System;
  2 | using System.Collections.Generic;
  3 | using System.ComponentModel;
  4 | using System.Data;
  5 | using System.Drawing;
  6 | using System.Linq;
  7 | using System.Net.Sockets;
  8 | using System.Net;
  9 | using System.Text;
 10 | using System.Threading.Tasks;
 11 | using System.Windows.Forms;
 12 | using Communicator;
 13 | using System.Text.Json;
 14 | 
 15 | namespace Chat_app_Client
 16 | {
 17 |     public partial class Signin : Form
 18 |     {
 19 |         private bool active = true;
 20 |         private IPEndPoint ipe;
 21 |         private TcpClient server;
 22 |         private StreamReader streamReader;
 23 |         private StreamWriter streamWriter;
 24 | 
 25 |         public Signin()
 26 |         {
 27 |             InitializeComponent();
 28 |         }
 29 | 
 30 |         private void btnSignin_Click(object sender, EventArgs e)
 31 |         {
 32 |             if (txtSigninIP.Text == "" || txtSigninPassword.Text == "" || txtSigninUsername.Text == "")
 33 |             {
 34 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
 35 |                 return;
 36 |             }
 37 | 
 38 |             ipe = new IPEndPoint(IPAddress.Parse(txtSigninIP.Text), 2009);
 39 |             server = new TcpClient();
 40 | 
 41 |             server.Connect(ipe);
 42 | 
 43 |             streamReader = new StreamReader(server.GetStream());
 44 |             streamWriter = new StreamWriter(server.GetStream());
 45 | 
 46 |             var threadSign = new Thread(new ThreadStart(waitForSigninFeedback));
 47 |             threadSign.IsBackground = true;
 48 |             threadSign.Start();
 49 |         }
 50 | 
 51 |         private void waitForSigninFeedback()
 52 |         {
 53 |             Account account = new Account(txtSigninUsername.Text, txtSigninPassword.Text);
 54 |             String accountJson = JsonSerializer.Serialize(account);
 55 |             Json json = new Json("SIGNIN", accountJson);
 56 | 
 57 |             sendJson(json);
 58 | 
 59 |             accountJson = streamReader.ReadLine();
 60 |             Json? feedback = JsonSerializer.Deserialize<Json?>(accountJson);
 61 | 
 62 |             try
 63 |             {
 64 |                 if (feedback != null)
 65 |                 {
 66 |                     switch (feedback.type)
 67 |                     {
 68 |                         case "SIGNIN_FEEDBACK":
 69 |                             if (feedback.content == "TRUE")
 70 |                             {
 71 |                                 new Thread(() => Application.Run(new ChatBox(server, account.userName))).Start();
 72 |                                 this.Invoke((MethodInvoker)delegate
 73 |                                 {
 74 |                                     this.Close();
 75 |                                 });
 76 |                                 break;
 77 |                             }
 78 |                             if (feedback.content == "FALSE")
 79 |                             {
 80 |                                 MessageBox.Show("Sign in failed!!", "Notification");
 81 |                             }
 82 |                             break;
 83 |                     }
 84 |                 }
 85 |             }
 86 |             catch (Exception ex)
 87 |             {
 88 |                 MessageBox.Show(ex.ToString());
 89 |             }
 90 |         }
 91 | 
 92 |         private void sendJson(Json json)
 93 |         {
 94 |             byte[] jsonUtf8Bytes = JsonSerializer.SerializeToUtf8Bytes(json);
 95 |             String S = Encoding.ASCII.GetString(jsonUtf8Bytes, 0, jsonUtf8Bytes.Length);
 96 |             streamWriter.WriteLine(S);
 97 |             streamWriter.Flush();
 98 |         }
 99 | 
100 |         private void lblSignin_Click(object sender, EventArgs e)
101 |         {
102 |             new Thread(() => Application.Run(new Login())).Start();
103 |             this.Close();
104 |         }
105 |     }
106 | }
107 | 


--------------------------------------------------------------------------------
/Chat-app Client/Login.cs:
--------------------------------------------------------------------------------
  1 | using System.Net.Sockets;
  2 | using System.Net;
  3 | using System.Security.Principal;
  4 | using System.Text.Json;
  5 | using Communicator;
  6 | using System.Text;
  7 | using System.Windows.Forms;
  8 | 
  9 | namespace Chat_app_Client
 10 | {
 11 |     public partial class Login : Form
 12 |     {
 13 |         private IPEndPoint ipe;
 14 |         private TcpClient server;
 15 |         private StreamReader streamReader;
 16 |         private StreamWriter streamWriter;
 17 |         private String name;
 18 | 
 19 |         public Login()
 20 |         {
 21 |             InitializeComponent();
 22 |         }
 23 | 
 24 |         private void btnLogin_Click(object sender, EventArgs e)
 25 |         {
 26 |             if (txtLoginPassword.Text == "" || txtLoginIP.Text == "" || txtLoginUsername.Text == "")
 27 |             {
 28 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
 29 |                 return;
 30 |             }
 31 | 
 32 |             try
 33 |             {
 34 |                 ipe = new IPEndPoint(IPAddress.Parse(txtLoginIP.Text), 2009);
 35 |                 server = new TcpClient();
 36 | 
 37 |                 server.Connect(ipe);
 38 | 
 39 |                 name = txtLoginUsername.Text;
 40 |                 streamReader = new StreamReader(server.GetStream());
 41 |                 streamWriter = new StreamWriter(server.GetStream());
 42 | 
 43 |                 var threadLog = new Thread(new ThreadStart(waitForLoginFeedback));
 44 |                 threadLog.IsBackground = true;
 45 |                 threadLog.Start();
 46 |             }
 47 |             catch
 48 |             {
 49 |                 MessageBox.Show("Cannot connect to server", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
 50 |             }            
 51 |         }
 52 | 
 53 |         private void waitForLoginFeedback()
 54 |         {
 55 |             Account account = new Account(txtLoginUsername.Text, txtLoginPassword.Text);
 56 |             String accountJson = JsonSerializer.Serialize(account);
 57 |             Json json = new Json("LOGIN", accountJson);
 58 | 
 59 |             sendJson(json, server);
 60 | 
 61 |             accountJson = streamReader.ReadLine();
 62 |             Json? feedback = JsonSerializer.Deserialize<Json?>(accountJson);
 63 | 
 64 |             try
 65 |             {
 66 |                 if (feedback != null)
 67 |                 {
 68 |                     switch (feedback.type)
 69 |                     {
 70 |                         case "LOGIN_FEEDBACK":
 71 |                             if (feedback.content == "TRUE")
 72 |                             {
 73 |                                 new Thread(() => Application.Run(new ChatBox(server, this.name))).Start();
 74 |                                 this.Invoke((MethodInvoker)delegate
 75 |                                 {
 76 |                                     this.Close();
 77 |                                 });
 78 |                                 break;
 79 |                             }
 80 |                             if (feedback.content == "FALSE")
 81 |                             {
 82 |                                 MessageBox.Show("Login failed!!", "Notification");
 83 |                             }
 84 |                             break;
 85 |                     }
 86 |                 }
 87 |             }
 88 |             catch (Exception ex)
 89 |             {
 90 |                 MessageBox.Show(ex.ToString());
 91 |             }
 92 |         }
 93 | 
 94 |         private void sendJson(Json json, TcpClient client)
 95 |         {
 96 |             byte[] jsonUtf8Bytes = JsonSerializer.SerializeToUtf8Bytes(json);
 97 |             StreamWriter streamWriter = new StreamWriter(client.GetStream());
 98 |             String S = Encoding.ASCII.GetString(jsonUtf8Bytes, 0, jsonUtf8Bytes.Length);
 99 |             streamWriter.WriteLine(S);
100 |             streamWriter.Flush();
101 |         }
102 | 
103 |         private void lblSignin_Click(object sender, EventArgs e)
104 |         {
105 |             new Thread(() => Application.Run(new Signin())).Start();
106 |             this.Close();
107 |         }
108 |     }
109 | }


--------------------------------------------------------------------------------
/Chat-app Client/GroupCreator.Designer.cs:
--------------------------------------------------------------------------------
  1 | namespace Chat_app_Client
  2 | {
  3 |     partial class GroupCreator
  4 |     {
  5 |         /// <summary>
  6 |         /// Required designer variable.
  7 |         /// </summary>
  8 |         private System.ComponentModel.IContainer components = null;
  9 | 
 10 |         /// <summary>
 11 |         /// Clean up any resources being used.
 12 |         /// </summary>
 13 |         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
 14 |         protected override void Dispose(bool disposing)
 15 |         {
 16 |             if (disposing && (components != null))
 17 |             {
 18 |                 components.Dispose();
 19 |             }
 20 |             base.Dispose(disposing);
 21 |         }
 22 | 
 23 |         #region Windows Form Designer generated code
 24 | 
 25 |         /// <summary>
 26 |         /// Required method for Designer support - do not modify
 27 |         /// the contents of this method with the code editor.
 28 |         /// </summary>
 29 |         private void InitializeComponent()
 30 |         {
 31 |             this.label1 = new System.Windows.Forms.Label();
 32 |             this.txtGroupName = new System.Windows.Forms.TextBox();
 33 |             this.label2 = new System.Windows.Forms.Label();
 34 |             this.label3 = new System.Windows.Forms.Label();
 35 |             this.txtMembers = new System.Windows.Forms.TextBox();
 36 |             this.btnCreate = new System.Windows.Forms.Button();
 37 |             this.SuspendLayout();
 38 |             // 
 39 |             // label1
 40 |             // 
 41 |             this.label1.AutoSize = true;
 42 |             this.label1.Font = new System.Drawing.Font("Times New Roman", 14.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
 43 |             this.label1.ForeColor = System.Drawing.Color.Maroon;
 44 |             this.label1.Location = new System.Drawing.Point(12, 9);
 45 |             this.label1.Name = "label1";
 46 |             this.label1.Size = new System.Drawing.Size(170, 22);
 47 |             this.label1.TabIndex = 3;
 48 |             this.label1.Text = "Create a new Group";
 49 |             // 
 50 |             // txtGroupName
 51 |             // 
 52 |             this.txtGroupName.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
 53 |             this.txtGroupName.Location = new System.Drawing.Point(12, 56);
 54 |             this.txtGroupName.Name = "txtGroupName";
 55 |             this.txtGroupName.Size = new System.Drawing.Size(170, 22);
 56 |             this.txtGroupName.TabIndex = 0;
 57 |             // 
 58 |             // label2
 59 |             // 
 60 |             this.label2.AutoSize = true;
 61 |             this.label2.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
 62 |             this.label2.Location = new System.Drawing.Point(12, 38);
 63 |             this.label2.Name = "label2";
 64 |             this.label2.Size = new System.Drawing.Size(76, 15);
 65 |             this.label2.TabIndex = 4;
 66 |             this.label2.Text = "Group Name";
 67 |             // 
 68 |             // label3
 69 |             // 
 70 |             this.label3.AutoSize = true;
 71 |             this.label3.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
 72 |             this.label3.Location = new System.Drawing.Point(12, 82);
 73 |             this.label3.Name = "label3";
 74 |             this.label3.Size = new System.Drawing.Size(56, 15);
 75 |             this.label3.TabIndex = 5;
 76 |             this.label3.Text = "Members";
 77 |             // 
 78 |             // txtMembers
 79 |             // 
 80 |             this.txtMembers.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
 81 |             this.txtMembers.Location = new System.Drawing.Point(12, 100);
 82 |             this.txtMembers.Name = "txtMembers";
 83 |             this.txtMembers.Size = new System.Drawing.Size(170, 22);
 84 |             this.txtMembers.TabIndex = 1;
 85 |             // 
 86 |             // btnCreate
 87 |             // 
 88 |             this.btnCreate.BackColor = System.Drawing.Color.RosyBrown;
 89 |             this.btnCreate.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
 90 |             this.btnCreate.Font = new System.Drawing.Font("Times New Roman", 11.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
 91 |             this.btnCreate.ForeColor = System.Drawing.Color.Maroon;
 92 |             this.btnCreate.Location = new System.Drawing.Point(12, 140);
 93 |             this.btnCreate.Name = "btnCreate";
 94 |             this.btnCreate.Size = new System.Drawing.Size(170, 27);
 95 |             this.btnCreate.TabIndex = 2;
 96 |             this.btnCreate.Text = "Create";
 97 |             this.btnCreate.UseVisualStyleBackColor = false;
 98 |             this.btnCreate.Click += new System.EventHandler(this.btnCreate_Click);
 99 |             // 
100 |             // GroupCreator
101 |             // 
102 |             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
103 |             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
104 |             this.ClientSize = new System.Drawing.Size(196, 183);
105 |             this.Controls.Add(this.btnCreate);
106 |             this.Controls.Add(this.txtMembers);
107 |             this.Controls.Add(this.label3);
108 |             this.Controls.Add(this.txtGroupName);
109 |             this.Controls.Add(this.label2);
110 |             this.Controls.Add(this.label1);
111 |             this.Name = "GroupCreator";
112 |             this.Text = "Create a New Grou[";
113 |             this.ResumeLayout(false);
114 |             this.PerformLayout();
115 | 
116 |         }
117 | 
118 |         #endregion
119 | 
120 |         private Label label1;
121 |         private TextBox txtGroupName;
122 |         private Label label2;
123 |         private Label label3;
124 |         private TextBox txtMembers;
125 |         private Button btnCreate;
126 |     }
127 | }


--------------------------------------------------------------------------------
/Chat-app Client/Properties/Resources.resx:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <root>
  3 |   <!-- 
  4 |     Microsoft ResX Schema 
  5 |     
  6 |     Version 2.0
  7 |     
  8 |     The primary goals of this format is to allow a simple XML format 
  9 |     that is mostly human readable. The generation and parsing of the 
 10 |     various data types are done through the TypeConverter classes 
 11 |     associated with the data types.
 12 |     
 13 |     Example:
 14 |     
 15 |     ... ado.net/XML headers & schema ...
 16 |     <resheader name="resmimetype">text/microsoft-resx</resheader>
 17 |     <resheader name="version">2.0</resheader>
 18 |     <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
 19 |     <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
 20 |     <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
 21 |     <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
 22 |     <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
 23 |         <value>[base64 mime encoded serialized .NET Framework object]</value>
 24 |     </data>
 25 |     <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
 26 |         <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
 27 |         <comment>This is a comment</comment>
 28 |     </data>
 29 |                 
 30 |     There are any number of "resheader" rows that contain simple 
 31 |     name/value pairs.
 32 |     
 33 |     Each data row contains a name, and value. The row also contains a 
 34 |     type or mimetype. Type corresponds to a .NET class that support 
 35 |     text/value conversion through the TypeConverter architecture. 
 36 |     Classes that don't support this are serialized and stored with the 
 37 |     mimetype set.
 38 |     
 39 |     The mimetype is used for serialized objects, and tells the 
 40 |     ResXResourceReader how to depersist the object. This is currently not 
 41 |     extensible. For a given mimetype the value must be set accordingly:
 42 |     
 43 |     Note - application/x-microsoft.net.object.binary.base64 is the format 
 44 |     that the ResXResourceWriter will generate, however the reader can 
 45 |     read any of the formats listed below.
 46 |     
 47 |     mimetype: application/x-microsoft.net.object.binary.base64
 48 |     value   : The object must be serialized with 
 49 |             : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
 50 |             : and then encoded with base64 encoding.
 51 |     
 52 |     mimetype: application/x-microsoft.net.object.soap.base64
 53 |     value   : The object must be serialized with 
 54 |             : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
 55 |             : and then encoded with base64 encoding.
 56 | 
 57 |     mimetype: application/x-microsoft.net.object.bytearray.base64
 58 |     value   : The object must be serialized into a byte array 
 59 |             : using a System.ComponentModel.TypeConverter
 60 |             : and then encoded with base64 encoding.
 61 |     -->
 62 |   <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
 63 |     <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
 64 |     <xsd:element name="root" msdata:IsDataSet="true">
 65 |       <xsd:complexType>
 66 |         <xsd:choice maxOccurs="unbounded">
 67 |           <xsd:element name="metadata">
 68 |             <xsd:complexType>
 69 |               <xsd:sequence>
 70 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" />
 71 |               </xsd:sequence>
 72 |               <xsd:attribute name="name" use="required" type="xsd:string" />
 73 |               <xsd:attribute name="type" type="xsd:string" />
 74 |               <xsd:attribute name="mimetype" type="xsd:string" />
 75 |               <xsd:attribute ref="xml:space" />
 76 |             </xsd:complexType>
 77 |           </xsd:element>
 78 |           <xsd:element name="assembly">
 79 |             <xsd:complexType>
 80 |               <xsd:attribute name="alias" type="xsd:string" />
 81 |               <xsd:attribute name="name" type="xsd:string" />
 82 |             </xsd:complexType>
 83 |           </xsd:element>
 84 |           <xsd:element name="data">
 85 |             <xsd:complexType>
 86 |               <xsd:sequence>
 87 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
 88 |                 <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
 89 |               </xsd:sequence>
 90 |               <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
 91 |               <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
 92 |               <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
 93 |               <xsd:attribute ref="xml:space" />
 94 |             </xsd:complexType>
 95 |           </xsd:element>
 96 |           <xsd:element name="resheader">
 97 |             <xsd:complexType>
 98 |               <xsd:sequence>
 99 |                 <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
100 |               </xsd:sequence>
101 |               <xsd:attribute name="name" type="xsd:string" use="required" />
102 |             </xsd:complexType>
103 |           </xsd:element>
104 |         </xsd:choice>
105 |       </xsd:complexType>
106 |     </xsd:element>
107 |   </xsd:schema>
108 |   <resheader name="resmimetype">
109 |     <value>text/microsoft-resx</value>
110 |   </resheader>
111 |   <resheader name="version">
112 |     <value>2.0</value>
113 |   </resheader>
114 |   <resheader name="reader">
115 |     <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
116 |   </resheader>
117 |   <resheader name="writer">
118 |     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
119 |   </resheader>
120 |   <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
121 |   <data name="file" type="System.Resources.ResXFileRef, System.Windows.Forms">
122 |     <value>..\Resources\file.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
123 |   </data>
124 |   <data name="send" type="System.Resources.ResXFileRef, System.Windows.Forms">
125 |     <value>..\Resources\send.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
126 |   </data>
127 | </root>


--------------------------------------------------------------------------------
/Chat-app Server/Server.Designer.cs:
--------------------------------------------------------------------------------
  1 | namespace Chat_app_Server
  2 | {
  3 |     partial class Server
  4 |     {
  5 |         /// <summary>
  6 |         ///  Required designer variable.
  7 |         /// </summary>
  8 |         private System.ComponentModel.IContainer components = null;
  9 | 
 10 |         /// <summary>
 11 |         ///  Clean up any resources being used.
 12 |         /// </summary>
 13 |         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
 14 |         protected override void Dispose(bool disposing)
 15 |         {
 16 |             if (disposing && (components != null))
 17 |             {
 18 |                 components.Dispose();
 19 |             }
 20 |             base.Dispose(disposing);
 21 |         }
 22 | 
 23 |         #region Windows Form Designer generated code
 24 | 
 25 |         /// <summary>
 26 |         ///  Required method for Designer support - do not modify
 27 |         ///  the contents of this method with the code editor.
 28 |         /// </summary>
 29 |         private void InitializeComponent()
 30 |         {
 31 |             this.label1 = new System.Windows.Forms.Label();
 32 |             this.label2 = new System.Windows.Forms.Label();
 33 |             this.txtIP = new System.Windows.Forms.TextBox();
 34 |             this.label3 = new System.Windows.Forms.Label();
 35 |             this.txtPort = new System.Windows.Forms.TextBox();
 36 |             this.btnStart = new System.Windows.Forms.Button();
 37 |             this.rtbDialog = new System.Windows.Forms.RichTextBox();
 38 |             this.btnStop = new System.Windows.Forms.Button();
 39 |             this.SuspendLayout();
 40 |             // 
 41 |             // label1
 42 |             // 
 43 |             this.label1.AutoSize = true;
 44 |             this.label1.Font = new System.Drawing.Font("Times New Roman", 20.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
 45 |             this.label1.ForeColor = System.Drawing.Color.Maroon;
 46 |             this.label1.Location = new System.Drawing.Point(24, 20);
 47 |             this.label1.Name = "label1";
 48 |             this.label1.Size = new System.Drawing.Size(200, 31);
 49 |             this.label1.TabIndex = 0;
 50 |             this.label1.Text = "Server Chat-app";
 51 |             // 
 52 |             // label2
 53 |             // 
 54 |             this.label2.AutoSize = true;
 55 |             this.label2.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
 56 |             this.label2.Location = new System.Drawing.Point(12, 66);
 57 |             this.label2.Name = "label2";
 58 |             this.label2.Size = new System.Drawing.Size(65, 15);
 59 |             this.label2.TabIndex = 1;
 60 |             this.label2.Text = "IP Address";
 61 |             // 
 62 |             // txtIP
 63 |             // 
 64 |             this.txtIP.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
 65 |             this.txtIP.Location = new System.Drawing.Point(12, 84);
 66 |             this.txtIP.Name = "txtIP";
 67 |             this.txtIP.Size = new System.Drawing.Size(225, 22);
 68 |             this.txtIP.TabIndex = 1;
 69 |             // 
 70 |             // label3
 71 |             // 
 72 |             this.label3.AutoSize = true;
 73 |             this.label3.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
 74 |             this.label3.Location = new System.Drawing.Point(12, 114);
 75 |             this.label3.Name = "label3";
 76 |             this.label3.Size = new System.Drawing.Size(31, 15);
 77 |             this.label3.TabIndex = 1;
 78 |             this.label3.Text = "Port";
 79 |             // 
 80 |             // txtPort
 81 |             // 
 82 |             this.txtPort.Font = new System.Drawing.Font("Times New Roman", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
 83 |             this.txtPort.Location = new System.Drawing.Point(12, 132);
 84 |             this.txtPort.Name = "txtPort";
 85 |             this.txtPort.Size = new System.Drawing.Size(225, 22);
 86 |             this.txtPort.TabIndex = 2;
 87 |             // 
 88 |             // btnStart
 89 |             // 
 90 |             this.btnStart.BackColor = System.Drawing.Color.RosyBrown;
 91 |             this.btnStart.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
 92 |             this.btnStart.Font = new System.Drawing.Font("Times New Roman", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
 93 |             this.btnStart.ForeColor = System.Drawing.Color.Maroon;
 94 |             this.btnStart.Location = new System.Drawing.Point(12, 171);
 95 |             this.btnStart.Name = "btnStart";
 96 |             this.btnStart.Size = new System.Drawing.Size(225, 32);
 97 |             this.btnStart.TabIndex = 0;
 98 |             this.btnStart.Text = "Start";
 99 |             this.btnStart.UseVisualStyleBackColor = false;
100 |             this.btnStart.Click += new System.EventHandler(this.btnStart_Click);
101 |             // 
102 |             // rtbDialog
103 |             // 
104 |             this.rtbDialog.Enabled = false;
105 |             this.rtbDialog.Location = new System.Drawing.Point(12, 229);
106 |             this.rtbDialog.Name = "rtbDialog";
107 |             this.rtbDialog.Size = new System.Drawing.Size(225, 248);
108 |             this.rtbDialog.TabIndex = 4;
109 |             this.rtbDialog.Text = "";
110 |             // 
111 |             // btnStop
112 |             // 
113 |             this.btnStop.BackColor = System.Drawing.Color.Firebrick;
114 |             this.btnStop.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
115 |             this.btnStop.Font = new System.Drawing.Font("Times New Roman", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
116 |             this.btnStop.ForeColor = System.Drawing.Color.White;
117 |             this.btnStop.Location = new System.Drawing.Point(12, 489);
118 |             this.btnStop.Name = "btnStop";
119 |             this.btnStop.Size = new System.Drawing.Size(225, 32);
120 |             this.btnStop.TabIndex = 3;
121 |             this.btnStop.Text = "Stop";
122 |             this.btnStop.UseVisualStyleBackColor = false;
123 |             this.btnStop.Click += new System.EventHandler(this.btnStop_Click);
124 |             // 
125 |             // Server
126 |             // 
127 |             this.BackColor = System.Drawing.SystemColors.Control;
128 |             this.ClientSize = new System.Drawing.Size(249, 533);
129 |             this.Controls.Add(this.rtbDialog);
130 |             this.Controls.Add(this.btnStop);
131 |             this.Controls.Add(this.btnStart);
132 |             this.Controls.Add(this.txtPort);
133 |             this.Controls.Add(this.label3);
134 |             this.Controls.Add(this.txtIP);
135 |             this.Controls.Add(this.label2);
136 |             this.Controls.Add(this.label1);
137 |             this.Name = "Server";
138 |             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
139 |             this.Text = "Server";
140 |             this.Load += new System.EventHandler(this.Server_Load);
141 |             this.ResumeLayout(false);
142 |             this.PerformLayout();
143 | 
144 |         }
145 | 
146 |         #endregion
147 | 
148 |         private Label label1;
149 |         private Label label2;
150 |         private TextBox txtIP;
151 |         private Label label3;
152 |         private TextBox txtPort;
153 |         private Button btnStart;
154 |         private RichTextBox rtbDialog;
155 |         private Button btnStop;
156 |     }
157 | }


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
  1 | ## Ignore Visual Studio temporary files, build results, and
  2 | ## files generated by popular Visual Studio add-ons.
  3 | ##
  4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
  5 | 
  6 | # User-specific files
  7 | *.rsuser
  8 | *.suo
  9 | *.user
 10 | *.userosscache
 11 | *.sln.docstates
 12 | 
 13 | # User-specific files (MonoDevelop/Xamarin Studio)
 14 | *.userprefs
 15 | 
 16 | # Mono auto generated files
 17 | mono_crash.*
 18 | 
 19 | # Build results
 20 | [Dd]ebug/
 21 | [Dd]ebugPublic/
 22 | [Rr]elease/
 23 | [Rr]eleases/
 24 | x64/
 25 | x86/
 26 | [Ww][Ii][Nn]32/
 27 | [Aa][Rr][Mm]/
 28 | [Aa][Rr][Mm]64/
 29 | bld/
 30 | [Bb]in/
 31 | [Oo]bj/
 32 | [Oo]ut/
 33 | [Ll]og/
 34 | [Ll]ogs/
 35 | 
 36 | # Visual Studio 2015/2017 cache/options directory
 37 | .vs/
 38 | # Uncomment if you have tasks that create the project's static files in wwwroot
 39 | #wwwroot/
 40 | 
 41 | # Visual Studio 2017 auto generated files
 42 | Generated\ Files/
 43 | 
 44 | # MSTest test Results
 45 | [Tt]est[Rr]esult*/
 46 | [Bb]uild[Ll]og.*
 47 | 
 48 | # NUnit
 49 | *.VisualState.xml
 50 | TestResult.xml
 51 | nunit-*.xml
 52 | 
 53 | # Build Results of an ATL Project
 54 | [Dd]ebugPS/
 55 | [Rr]eleasePS/
 56 | dlldata.c
 57 | 
 58 | # Benchmark Results
 59 | BenchmarkDotNet.Artifacts/
 60 | 
 61 | # .NET Core
 62 | project.lock.json
 63 | project.fragment.lock.json
 64 | artifacts/
 65 | 
 66 | # ASP.NET Scaffolding
 67 | ScaffoldingReadMe.txt
 68 | 
 69 | # StyleCop
 70 | StyleCopReport.xml
 71 | 
 72 | # Files built by Visual Studio
 73 | *_i.c
 74 | *_p.c
 75 | *_h.h
 76 | *.ilk
 77 | *.meta
 78 | *.obj
 79 | *.iobj
 80 | *.pch
 81 | *.pdb
 82 | *.ipdb
 83 | *.pgc
 84 | *.pgd
 85 | *.rsp
 86 | *.sbr
 87 | *.tlb
 88 | *.tli
 89 | *.tlh
 90 | *.tmp
 91 | *.tmp_proj
 92 | *_wpftmp.csproj
 93 | *.log
 94 | *.vspscc
 95 | *.vssscc
 96 | .builds
 97 | *.pidb
 98 | *.svclog
 99 | *.scc
100 | 
101 | # Chutzpah Test files
102 | _Chutzpah*
103 | 
104 | # Visual C++ cache files
105 | ipch/
106 | *.aps
107 | *.ncb
108 | *.opendb
109 | *.opensdf
110 | *.sdf
111 | *.cachefile
112 | *.VC.db
113 | *.VC.VC.opendb
114 | 
115 | # Visual Studio profiler
116 | *.psess
117 | *.vsp
118 | *.vspx
119 | *.sap
120 | 
121 | # Visual Studio Trace Files
122 | *.e2e
123 | 
124 | # TFS 2012 Local Workspace
125 | $tf/
126 | 
127 | # Guidance Automation Toolkit
128 | *.gpState
129 | 
130 | # ReSharper is a .NET coding add-in
131 | _ReSharper*/
132 | *.[Rr]e[Ss]harper
133 | *.DotSettings.user
134 | 
135 | # TeamCity is a build add-in
136 | _TeamCity*
137 | 
138 | # DotCover is a Code Coverage Tool
139 | *.dotCover
140 | 
141 | # AxoCover is a Code Coverage Tool
142 | .axoCover/*
143 | !.axoCover/settings.json
144 | 
145 | # Coverlet is a free, cross platform Code Coverage Tool
146 | coverage*.json
147 | coverage*.xml
148 | coverage*.info
149 | 
150 | # Visual Studio code coverage results
151 | *.coverage
152 | *.coveragexml
153 | 
154 | # NCrunch
155 | _NCrunch_*
156 | .*crunch*.local.xml
157 | nCrunchTemp_*
158 | 
159 | # MightyMoose
160 | *.mm.*
161 | AutoTest.Net/
162 | 
163 | # Web workbench (sass)
164 | .sass-cache/
165 | 
166 | # Installshield output folder
167 | [Ee]xpress/
168 | 
169 | # DocProject is a documentation generator add-in
170 | DocProject/buildhelp/
171 | DocProject/Help/*.HxT
172 | DocProject/Help/*.HxC
173 | DocProject/Help/*.hhc
174 | DocProject/Help/*.hhk
175 | DocProject/Help/*.hhp
176 | DocProject/Help/Html2
177 | DocProject/Help/html
178 | 
179 | # Click-Once directory
180 | publish/
181 | 
182 | # Publish Web Output
183 | *.[Pp]ublish.xml
184 | *.azurePubxml
185 | # Note: Comment the next line if you want to checkin your web deploy settings,
186 | # but database connection strings (with potential passwords) will be unencrypted
187 | *.pubxml
188 | *.publishproj
189 | 
190 | # Microsoft Azure Web App publish settings. Comment the next line if you want to
191 | # checkin your Azure Web App publish settings, but sensitive information contained
192 | # in these scripts will be unencrypted
193 | PublishScripts/
194 | 
195 | # NuGet Packages
196 | *.nupkg
197 | # NuGet Symbol Packages
198 | *.snupkg
199 | # The packages folder can be ignored because of Package Restore
200 | **/[Pp]ackages/*
201 | # except build/, which is used as an MSBuild target.
202 | !**/[Pp]ackages/build/
203 | # Uncomment if necessary however generally it will be regenerated when needed
204 | #!**/[Pp]ackages/repositories.config
205 | # NuGet v3's project.json files produces more ignorable files
206 | *.nuget.props
207 | *.nuget.targets
208 | 
209 | # Microsoft Azure Build Output
210 | csx/
211 | *.build.csdef
212 | 
213 | # Microsoft Azure Emulator
214 | ecf/
215 | rcf/
216 | 
217 | # Windows Store app package directories and files
218 | AppPackages/
219 | BundleArtifacts/
220 | Package.StoreAssociation.xml
221 | _pkginfo.txt
222 | *.appx
223 | *.appxbundle
224 | *.appxupload
225 | 
226 | # Visual Studio cache files
227 | # files ending in .cache can be ignored
228 | *.[Cc]ache
229 | # but keep track of directories ending in .cache
230 | !?*.[Cc]ache/
231 | 
232 | # Others
233 | ClientBin/
234 | ~$*
235 | *~
236 | *.dbmdl
237 | *.dbproj.schemaview
238 | *.jfm
239 | *.pfx
240 | *.publishsettings
241 | orleans.codegen.cs
242 | 
243 | # Including strong name files can present a security risk
244 | # (https://github.com/github/gitignore/pull/2483#issue-259490424)
245 | #*.snk
246 | 
247 | # Since there are multiple workflows, uncomment next line to ignore bower_components
248 | # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
249 | #bower_components/
250 | 
251 | # RIA/Silverlight projects
252 | Generated_Code/
253 | 
254 | # Backup & report files from converting an old project file
255 | # to a newer Visual Studio version. Backup files are not needed,
256 | # because we have git ;-)
257 | _UpgradeReport_Files/
258 | Backup*/
259 | UpgradeLog*.XML
260 | UpgradeLog*.htm
261 | ServiceFabricBackup/
262 | *.rptproj.bak
263 | 
264 | # SQL Server files
265 | *.mdf
266 | *.ldf
267 | *.ndf
268 | 
269 | # Business Intelligence projects
270 | *.rdl.data
271 | *.bim.layout
272 | *.bim_*.settings
273 | *.rptproj.rsuser
274 | *- [Bb]ackup.rdl
275 | *- [Bb]ackup ([0-9]).rdl
276 | *- [Bb]ackup ([0-9][0-9]).rdl
277 | 
278 | # Microsoft Fakes
279 | FakesAssemblies/
280 | 
281 | # GhostDoc plugin setting file
282 | *.GhostDoc.xml
283 | 
284 | # Node.js Tools for Visual Studio
285 | .ntvs_analysis.dat
286 | node_modules/
287 | 
288 | # Visual Studio 6 build log
289 | *.plg
290 | 
291 | # Visual Studio 6 workspace options file
292 | *.opt
293 | 
294 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
295 | *.vbw
296 | 
297 | # Visual Studio LightSwitch build output
298 | **/*.HTMLClient/GeneratedArtifacts
299 | **/*.DesktopClient/GeneratedArtifacts
300 | **/*.DesktopClient/ModelManifest.xml
301 | **/*.Server/GeneratedArtifacts
302 | **/*.Server/ModelManifest.xml
303 | _Pvt_Extensions
304 | 
305 | # Paket dependency manager
306 | .paket/paket.exe
307 | paket-files/
308 | 
309 | # FAKE - F# Make
310 | .fake/
311 | 
312 | # CodeRush personal settings
313 | .cr/personal
314 | 
315 | # Python Tools for Visual Studio (PTVS)
316 | __pycache__/
317 | *.pyc
318 | 
319 | # Cake - Uncomment if you are using it
320 | # tools/**
321 | # !tools/packages.config
322 | 
323 | # Tabs Studio
324 | *.tss
325 | 
326 | # Telerik's JustMock configuration file
327 | *.jmconfig
328 | 
329 | # BizTalk build output
330 | *.btp.cs
331 | *.btm.cs
332 | *.odx.cs
333 | *.xsd.cs
334 | 
335 | # OpenCover UI analysis results
336 | OpenCover/
337 | 
338 | # Azure Stream Analytics local run output
339 | ASALocalRun/
340 | 
341 | # MSBuild Binary and Structured Log
342 | *.binlog
343 | 
344 | # NVidia Nsight GPU debugger configuration file
345 | *.nvuser
346 | 
347 | # MFractors (Xamarin productivity tool) working folder
348 | .mfractor/
349 | 
350 | # Local History for Visual Studio
351 | .localhistory/
352 | 
353 | # BeatPulse healthcheck temp database
354 | healthchecksdb
355 | 
356 | # Backup folder for Package Reference Convert tool in Visual Studio 2017
357 | MigrationBackup/
358 | 
359 | # Ionide (cross platform F# VS Code tools) working folder
360 | .ionide/
361 | 
362 | # Fody - auto-generated XML schema
363 | FodyWeavers.xsd


--------------------------------------------------------------------------------
/Chat-app Server/Server.cs:
--------------------------------------------------------------------------------
  1 | using Communicator;
  2 | using Microsoft.VisualBasic.ApplicationServices;
  3 | using System.IO;
  4 | using System.Net;
  5 | using System.Net.Http;
  6 | using System.Net.Sockets;
  7 | using System.Text;
  8 | using System.Text.Json;
  9 | using System.Windows.Forms;
 10 | using System.Xml;
 11 | 
 12 | namespace Chat_app_Server
 13 | {
 14 |     public partial class Server : Form
 15 |     {
 16 |         private bool active = true;
 17 |         private IPEndPoint iep;
 18 |         private TcpListener server;
 19 |         private Dictionary<String, String> USER;
 20 |         private Dictionary<String, List<String>> GROUP;
 21 |         private Dictionary<String, TcpClient> CLIENT;
 22 | 
 23 |         public Server()
 24 |         {
 25 |             InitializeComponent();
 26 |         }
 27 | 
 28 |         private void Server_Load(object sender, EventArgs e)
 29 |         {
 30 |             String IP = null;
 31 |             var host = Dns.GetHostByName(Dns.GetHostName());
 32 |             foreach (var ip in host.AddressList)
 33 |             {
 34 |                 if (ip.ToString().Contains('.'))
 35 |                 {
 36 |                     IP = ip.ToString();
 37 |                 }
 38 |             }
 39 |             if (IP == null)
 40 |             {
 41 |                 MessageBox.Show("No network adapters with an IPv4 address in the system!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
 42 |                 return;
 43 |             }
 44 |             txtIP.Text = IP;
 45 |             txtPort.Text = "2009";
 46 | 
 47 |             userInitialize();
 48 |         }
 49 | 
 50 |         private void userInitialize()
 51 |         {
 52 |             USER = new Dictionary<String, String>();
 53 |             GROUP = new Dictionary<String, List<String>>();
 54 |             CLIENT = new Dictionary<String, TcpClient>();
 55 | 
 56 |             for (char uName = 'A'; uName <= 'Z'; uName++)
 57 |             {
 58 |                 String pass = "123";
 59 |                 USER.Add(uName.ToString(), pass);
 60 |             }
 61 | 
 62 |             for (int i = 0; i < 5; i++)
 63 |             {
 64 |                 List<string> groupUser = new List<string>();
 65 |                 for (byte j = 0; j < 3; j++)
 66 |                 {
 67 |                     char u = (Char)('A' + 3 * i + j);
 68 |                     groupUser.Add(u.ToString());
 69 |                 }
 70 |                 if (!groupUser.Contains("A"))
 71 |                 {
 72 |                     groupUser.Add("A");
 73 |                 }
 74 |                 GROUP.Add("Group " + i.ToString(), groupUser);
 75 |             }
 76 |         }
 77 | 
 78 |         private void btnStart_Click(object sender, EventArgs e)
 79 |         {
 80 |             iep = new IPEndPoint(IPAddress.Parse(txtIP.Text), int.Parse(txtPort.Text));
 81 |             server = new TcpListener(iep);
 82 |             server.Start();
 83 | 
 84 |             Thread ServerThread = new Thread(new ThreadStart(ServerStart));
 85 |             ServerThread.IsBackground = true;
 86 |             ServerThread.Start();
 87 |         }
 88 | 
 89 |         private void ServerStart()
 90 |         {
 91 |             try
 92 |             {
 93 |                 AppendRichTextBox("Start accept connect from client!");
 94 |                 changeButtonEnable(btnStart, false);
 95 |                 changeButtonEnable(btnStop, true);
 96 |                 //Clipboard.SetText(txtIP.Text);
 97 |                 while (active)
 98 |                 {
 99 |                     TcpClient client = server.AcceptTcpClient();
100 |                     var clientThread = new Thread(() => clientService(client));
101 |                     clientThread.Start();
102 |                 }
103 | 
104 |             }
105 |             catch (Exception e)
106 |             {
107 |                 MessageBox.Show(e.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
108 |             }
109 |         }
110 | 
111 |         private void clientService(TcpClient client)
112 |         {
113 |             StreamReader streamReader = new StreamReader(client.GetStream());
114 |             String s = streamReader.ReadLine();
115 |             Json infoJson = JsonSerializer.Deserialize<Json>(s);
116 | 
117 |             if (infoJson != null)
118 |             {
119 |                 switch (infoJson.type)
120 |                 {
121 |                     case "SIGNIN":
122 |                         reponseSignin(infoJson, client);
123 |                         break;
124 |                     case "LOGIN":
125 |                         reponseLogin(infoJson, client);
126 |                         break;
127 |                 }
128 |             }
129 | 
130 |             try
131 |             {
132 |                 bool threadActive = true;
133 |                 while (threadActive && client != null)
134 |                 {
135 |                     s = streamReader.ReadLine();
136 |                     infoJson = JsonSerializer.Deserialize<Json>(s);
137 |                     if (infoJson != null && infoJson.content != null)
138 |                     {
139 |                         switch (infoJson.type)
140 |                         {
141 |                             case "MESSAGE":
142 |                                 if (infoJson.content != null)
143 |                                 {
144 |                                     reponseMessage(infoJson);
145 |                                 }
146 |                                 break;
147 |                             case "CREATE_GROUP":
148 |                                 if (infoJson.content != null)
149 |                                 {
150 |                                     createGroup(infoJson);
151 |                                 }
152 |                                 break;
153 |                             case "FILE":
154 |                                 if (infoJson.content != null)
155 |                                 {
156 |                                     reponseFile(infoJson, client);
157 |                                 }
158 |                                 break;
159 |                             case "LOGOUT":
160 |                                 if (infoJson.content != null)
161 |                                 {
162 |                                     CLIENT[infoJson.content].Close();
163 |                                     CLIENT.Remove(infoJson.content);
164 |                                     AppendRichTextBox(infoJson.content + " logged out.");
165 |                                     threadActive = false;
166 | 
167 |                                     foreach (String key in CLIENT.Keys)
168 |                                     {
169 |                                         startupClient(CLIENT[key], key);
170 |                                     }
171 |                                 }
172 |                                 break;
173 |                         }
174 |                     }
175 |                 }
176 |             }
177 |             catch
178 |             {
179 |                 //client.Close();
180 |             }
181 |         }
182 | 
183 |         private void reponseSignin(Json infoJson, TcpClient client)
184 |         {
185 |             Account account = JsonSerializer.Deserialize<Account>(infoJson.content);
186 | 
187 |             if (account != null && account.userName != null && !USER.ContainsKey(account.userName) && !CLIENT.ContainsKey(account.userName))
188 |             {
189 |                 Json notification = new Json("SIGNIN_FEEDBACK", "TRUE");
190 |                 sendJson(notification, client);
191 |                 AppendRichTextBox(account.userName + " signed in!");
192 | 
193 |                 USER.Remove(account.userName);
194 |                 USER.Add(account.userName, account.password);
195 | 
196 |                 CLIENT.Remove(account.userName);
197 |                 CLIENT.Add(account.userName, client);
198 | 
199 |                 foreach (String key in CLIENT.Keys)
200 |                 {
201 |                     startupClient(CLIENT[key], key);
202 |                 }
203 |             }
204 |         }
205 | 
206 |         private void reponseLogin(Json infoJson, TcpClient client)
207 |         {
208 |             Account account = JsonSerializer.Deserialize<Account>(infoJson.content);
209 |             if (account != null && account.userName != null && USER.ContainsKey(account.userName) && !CLIENT.ContainsKey(account.userName) && USER[account.userName] == account.password)
210 |             {
211 |                 Json notification = new Json("LOGIN_FEEDBACK", "TRUE");
212 |                 sendJson(notification, client);
213 |                 AppendRichTextBox(account.userName + " logged in!");
214 | 
215 |                 CLIENT.Remove(account.userName);
216 |                 CLIENT.Add(account.userName, client);
217 |                 
218 |                 foreach(String key in CLIENT.Keys)
219 |                 {
220 |                     startupClient(CLIENT[key], key);
221 |                 }
222 |             }
223 |             else
224 |             {
225 |                 Json notification = new Json("LOGIN_FEEDBACK", "FALSE");
226 |                 sendJson(notification, client);
227 |                 AppendRichTextBox(account.userName + " can not login!");
228 |             }
229 |         }
230 | 
231 |         private void startupClient(TcpClient client, String name)
232 |         {
233 |             List<String> onlUser = new List<string>(CLIENT.Keys);
234 |             onlUser.Remove(name);
235 | 
236 |             List<String> group = new List<string>();
237 |             foreach (String key in GROUP.Keys)
238 |             {
239 |                 if (GROUP[key].Contains(name))
240 |                 {
241 |                     group.Add(key);
242 |                 }
243 |             }
244 | 
245 |             string jsonUser = JsonSerializer.Serialize<List<String>>(onlUser);
246 |             string jsonGroup = JsonSerializer.Serialize<List<String>>(group);
247 | 
248 |             Startup startup = new Startup(jsonUser, jsonGroup);
249 |             String startupJson = JsonSerializer.Serialize(startup);
250 |             Json json = new Json("STARTUP_FEEDBACK", startupJson);
251 |             sendJson(json, client);
252 |         }
253 | 
254 |         private void reponseMessage(Json infoJson)
255 |         {
256 |             Messages messages = JsonSerializer.Deserialize<Messages>(infoJson.content);
257 |             if (messages != null && CLIENT.ContainsKey(messages.receiver))
258 |             {
259 |                 AppendRichTextBox(messages.sender + " to " + messages.receiver + ": " + messages.message);
260 | 
261 |                 TcpClient receiver = CLIENT[messages.receiver];
262 |                 sendJson(infoJson, receiver);
263 |                 receiver = CLIENT[messages.sender];
264 |                 sendJson(infoJson, receiver);
265 |             }
266 |             else
267 |             {
268 |                 if (GROUP.ContainsKey(messages.receiver))
269 |                 {
270 |                     AppendRichTextBox(messages.sender + " to " + messages.receiver + ": " + messages.message);
271 |                     foreach (String user in GROUP[messages.receiver])
272 |                     {
273 |                         if (CLIENT.ContainsKey(user))
274 |                         {
275 |                             TcpClient receiver = CLIENT[user];
276 |                             sendJson(infoJson, receiver);
277 |                         }
278 |                     }
279 |                 }
280 |             }
281 |         }
282 | 
283 |         private void createGroup(Json infoJson)
284 |         {
285 |             List<string> groupUser = new List<string>();
286 |             Group group = JsonSerializer.Deserialize<Group>(infoJson.content);
287 | 
288 |             string[] values = group.members.Split(',');
289 | 
290 |             for (int i = 0; i < values.Length; i++)
291 |             {
292 |                 values[i] = values[i].Trim();
293 |                 groupUser.Add(values[i]);
294 |             }
295 | 
296 |             GROUP.Add(group.name, groupUser);
297 | 
298 |             foreach (String key in CLIENT.Keys)
299 |             {
300 |                 startupClient(CLIENT[key], key);
301 |             }
302 |         }
303 | 
304 |         private void reponseFile(Json infoJson, TcpClient client)
305 |         {
306 |             FileMessage fileMessage = JsonSerializer.Deserialize<FileMessage>(infoJson.content);
307 | 
308 |             try
309 |             {
310 | 
311 |                 int length = Convert.ToInt32(fileMessage.lenght);
312 |                 byte[] buffer = new byte[length];
313 |                 int received = 0;
314 |                 int read = 0;
315 |                 int size = 1024;
316 |                 int remaining = 0;
317 | 
318 |                 // Read bytes from the client using the length sent from the client    
319 |                 while (received < length)
320 |                 {
321 |                     remaining = length - received;
322 |                     if (remaining < size)
323 |                     {
324 |                         size = remaining;
325 |                     }
326 | 
327 |                     read = client.GetStream().Read(buffer, received, size);
328 |                     received += read;
329 |                 }
330 | 
331 |                 BufferFile bufferFile = new BufferFile(fileMessage.sender, fileMessage.receiver, buffer, fileMessage.extension);
332 | 
333 |                 String jsonString = JsonSerializer.Serialize(bufferFile);
334 |                 Json json = new Json("FILE", jsonString);
335 | 
336 |                 if (CLIENT.ContainsKey(fileMessage.receiver))
337 |                 {
338 |                     TcpClient receiver = CLIENT[fileMessage.receiver];
339 |                     sendJson(json, receiver);
340 |                 }
341 | 
342 |                 else
343 |                 {
344 |                     if (GROUP.ContainsKey(fileMessage.receiver))
345 |                     {
346 |                         foreach (String user in GROUP[fileMessage.receiver])
347 |                         {
348 |                             if (CLIENT.ContainsKey(user))
349 |                             {
350 |                                 TcpClient receiver = CLIENT[user];
351 |                                 sendJson(json, receiver);
352 |                             }
353 |                         }
354 |                     }
355 |                 }
356 |             }
357 |             catch (Exception Ex)
358 |             {
359 |                 Console.WriteLine(Ex.ToString());
360 |             }
361 |         }
362 | 
363 |         private void sendJson(Json json, TcpClient client)
364 |         {
365 |             byte[] jsonUtf8Bytes = JsonSerializer.SerializeToUtf8Bytes(json);
366 |             StreamWriter streamWriter = new StreamWriter(client.GetStream());
367 | 
368 |             String S = Encoding.ASCII.GetString(jsonUtf8Bytes, 0, jsonUtf8Bytes.Length);
369 | 
370 |             streamWriter.WriteLine(S);
371 |             streamWriter.Flush();
372 |         }
373 | 
374 |         private void AppendRichTextBox(string value)
375 |         {
376 |             if (InvokeRequired)
377 |             {
378 |                 this.Invoke(new Action<string>(AppendRichTextBox), new object[] { value });
379 |                 return;
380 |             }
381 |             rtbDialog.AppendText(value);
382 |             rtbDialog.AppendText(Environment.NewLine);
383 |         }
384 | 
385 |         private void changeButtonEnable(Button btn, bool enable)
386 |         {
387 |             btn.BeginInvoke(new MethodInvoker(() =>
388 |             {
389 |                 btn.Enabled = enable;
390 |             }));
391 |         }
392 | 
393 |         private void btnStop_Click(object sender, EventArgs e)
394 |         {
395 |             if (CLIENT.Count() > 0)
396 |             {
397 |                 MessageBox.Show("The server has " + CLIENT.Count + " user(s) logged in.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
398 |                 return;
399 |             }
400 |             active = false;
401 |             Environment.Exit(0);
402 |         }
403 |     }
404 | }


--------------------------------------------------------------------------------
/Chat-app Client/Login.Designer.cs:
--------------------------------------------------------------------------------
  1 | namespace Chat_app_Client
  2 | {
  3 |     partial class Login
  4 |     {
  5 |         /// <summary>
  6 |         ///  Required designer variable.
  7 |         /// </summary>
  8 |         private System.ComponentModel.IContainer components = null;
  9 | 
 10 |         /// <summary>
 11 |         ///  Clean up any resources being used.
 12 |         /// </summary>
 13 |         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
 14 |         protected override void Dispose(bool disposing)
 15 |         {
 16 |             if (disposing && (components != null))
 17 |             {
 18 |                 components.Dispose();
 19 |             }
 20 |             base.Dispose(disposing);
 21 |         }
 22 | 
 23 |         #region Windows Form Designer generated code
 24 | 
 25 |         /// <summary>
 26 |         ///  Required method for Designer support - do not modify
 27 |         ///  the contents of this method with the code editor.
 28 |         /// </summary>
 29 |         private void InitializeComponent()
 30 |         {
 31 |             this.btnLogin = new System.Windows.Forms.Button();
 32 |             this.lblSignin = new System.Windows.Forms.Label();
 33 |             this.label7 = new System.Windows.Forms.Label();
 34 |             this.txtLoginPassword = new System.Windows.Forms.TextBox();
 35 |             this.label8 = new System.Windows.Forms.Label();
 36 |             this.txtLoginUsername = new System.Windows.Forms.TextBox();
 37 |             this.txtLoginIP = new System.Windows.Forms.TextBox();
 38 |             this.label9 = new System.Windows.Forms.Label();
 39 |             this.label10 = new System.Windows.Forms.Label();
 40 |             this.label11 = new System.Windows.Forms.Label();
 41 |             this.btnStart = new System.Windows.Forms.Button();
 42 |             this.label5 = new System.Windows.Forms.Label();
 43 |             this.label4 = new System.Windows.Forms.Label();
 44 |             this.textBox2 = new System.Windows.Forms.TextBox();
 45 |             this.label3 = new System.Windows.Forms.Label();
 46 |             this.textBox1 = new System.Windows.Forms.TextBox();
 47 |             this.txtIP = new System.Windows.Forms.TextBox();
 48 |             this.label2 = new System.Windows.Forms.Label();
 49 |             this.label6 = new System.Windows.Forms.Label();
 50 |             this.label1 = new System.Windows.Forms.Label();
 51 |             this.SuspendLayout();
 52 |             // 
 53 |             // btnLogin
 54 |             // 
 55 |             this.btnLogin.BackColor = System.Drawing.Color.RosyBrown;
 56 |             this.btnLogin.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
 57 |             this.btnLogin.Font = new System.Drawing.Font("Times New Roman", 21.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
 58 |             this.btnLogin.ForeColor = System.Drawing.Color.Maroon;
 59 |             this.btnLogin.Location = new System.Drawing.Point(23, 352);
 60 |             this.btnLogin.Name = "btnLogin";
 61 |             this.btnLogin.Size = new System.Drawing.Size(324, 46);
 62 |             this.btnLogin.TabIndex = 3;
 63 |             this.btnLogin.Text = "Login";
 64 |             this.btnLogin.UseVisualStyleBackColor = false;
 65 |             this.btnLogin.Click += new System.EventHandler(this.btnLogin_Click);
 66 |             // 
 67 |             // lblSignin
 68 |             // 
 69 |             this.lblSignin.AutoSize = true;
 70 |             this.lblSignin.Cursor = System.Windows.Forms.Cursors.Hand;
 71 |             this.lblSignin.Font = new System.Drawing.Font("Times New Roman", 14.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Italic | System.Drawing.FontStyle.Underline))), System.Drawing.GraphicsUnit.Point);
 72 |             this.lblSignin.Location = new System.Drawing.Point(88, 415);
 73 |             this.lblSignin.Name = "lblSignin";
 74 |             this.lblSignin.Size = new System.Drawing.Size(195, 21);
 75 |             this.lblSignin.TabIndex = 4;
 76 |             this.lblSignin.Text = "Don’t have an account?";
 77 |             this.lblSignin.Click += new System.EventHandler(this.lblSignin_Click);
 78 |             // 
 79 |             // label7
 80 |             // 
 81 |             this.label7.AutoSize = true;
 82 |             this.label7.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
 83 |             this.label7.Location = new System.Drawing.Point(23, 260);
 84 |             this.label7.Name = "label7";
 85 |             this.label7.Size = new System.Drawing.Size(93, 23);
 86 |             this.label7.TabIndex = 42;
 87 |             this.label7.Text = "Password";
 88 |             // 
 89 |             // txtLoginPassword
 90 |             // 
 91 |             this.txtLoginPassword.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
 92 |             this.txtLoginPassword.Location = new System.Drawing.Point(23, 290);
 93 |             this.txtLoginPassword.Name = "txtLoginPassword";
 94 |             this.txtLoginPassword.Size = new System.Drawing.Size(324, 35);
 95 |             this.txtLoginPassword.TabIndex = 2;
 96 |             this.txtLoginPassword.UseSystemPasswordChar = true;
 97 |             // 
 98 |             // label8
 99 |             // 
100 |             this.label8.AutoSize = true;
101 |             this.label8.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
102 |             this.label8.Location = new System.Drawing.Point(23, 181);
103 |             this.label8.Name = "label8";
104 |             this.label8.Size = new System.Drawing.Size(96, 23);
105 |             this.label8.TabIndex = 43;
106 |             this.label8.Text = "Username";
107 |             // 
108 |             // txtLoginUsername
109 |             // 
110 |             this.txtLoginUsername.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
111 |             this.txtLoginUsername.Location = new System.Drawing.Point(23, 211);
112 |             this.txtLoginUsername.Name = "txtLoginUsername";
113 |             this.txtLoginUsername.Size = new System.Drawing.Size(324, 35);
114 |             this.txtLoginUsername.TabIndex = 1;
115 |             // 
116 |             // txtLoginIP
117 |             // 
118 |             this.txtLoginIP.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
119 |             this.txtLoginIP.Location = new System.Drawing.Point(23, 132);
120 |             this.txtLoginIP.Name = "txtLoginIP";
121 |             this.txtLoginIP.Size = new System.Drawing.Size(324, 35);
122 |             this.txtLoginIP.TabIndex = 0;
123 |             // 
124 |             // label9
125 |             // 
126 |             this.label9.AutoSize = true;
127 |             this.label9.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
128 |             this.label9.Location = new System.Drawing.Point(23, 102);
129 |             this.label9.Name = "label9";
130 |             this.label9.Size = new System.Drawing.Size(89, 23);
131 |             this.label9.TabIndex = 44;
132 |             this.label9.Text = "Server IP";
133 |             // 
134 |             // label10
135 |             // 
136 |             this.label10.AutoSize = true;
137 |             this.label10.Font = new System.Drawing.Font("Times New Roman", 20.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
138 |             this.label10.ForeColor = System.Drawing.Color.Maroon;
139 |             this.label10.Location = new System.Drawing.Point(140, 58);
140 |             this.label10.Name = "label10";
141 |             this.label10.Size = new System.Drawing.Size(82, 31);
142 |             this.label10.TabIndex = 39;
143 |             this.label10.Text = "Login";
144 |             // 
145 |             // label11
146 |             // 
147 |             this.label11.AutoSize = true;
148 |             this.label11.Font = new System.Drawing.Font("Times New Roman", 27.75F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
149 |             this.label11.ForeColor = System.Drawing.Color.Maroon;
150 |             this.label11.Location = new System.Drawing.Point(46, 15);
151 |             this.label11.Name = "label11";
152 |             this.label11.Size = new System.Drawing.Size(264, 43);
153 |             this.label11.TabIndex = 40;
154 |             this.label11.Text = "Client Chat-app";
155 |             // 
156 |             // btnStart
157 |             // 
158 |             this.btnStart.BackColor = System.Drawing.Color.RosyBrown;
159 |             this.btnStart.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
160 |             this.btnStart.Font = new System.Drawing.Font("Times New Roman", 21.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
161 |             this.btnStart.ForeColor = System.Drawing.Color.Maroon;
162 |             this.btnStart.Location = new System.Drawing.Point(23, 356);
163 |             this.btnStart.Name = "btnStart";
164 |             this.btnStart.Size = new System.Drawing.Size(324, 36);
165 |             this.btnStart.TabIndex = 3;
166 |             this.btnStart.Text = "Start";
167 |             this.btnStart.UseVisualStyleBackColor = false;
168 |             // 
169 |             // label5
170 |             // 
171 |             this.label5.AutoSize = true;
172 |             this.label5.Font = new System.Drawing.Font("Times New Roman", 14.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Italic | System.Drawing.FontStyle.Underline))), System.Drawing.GraphicsUnit.Point);
173 |             this.label5.Location = new System.Drawing.Point(88, 415);
174 |             this.label5.Name = "label5";
175 |             this.label5.Size = new System.Drawing.Size(195, 21);
176 |             this.label5.TabIndex = 31;
177 |             this.label5.Text = "Don’t have an account?";
178 |             // 
179 |             // label4
180 |             // 
181 |             this.label4.AutoSize = true;
182 |             this.label4.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
183 |             this.label4.Location = new System.Drawing.Point(23, 260);
184 |             this.label4.Name = "label4";
185 |             this.label4.Size = new System.Drawing.Size(93, 23);
186 |             this.label4.TabIndex = 32;
187 |             this.label4.Text = "Password";
188 |             // 
189 |             // textBox2
190 |             // 
191 |             this.textBox2.Enabled = false;
192 |             this.textBox2.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
193 |             this.textBox2.Location = new System.Drawing.Point(23, 290);
194 |             this.textBox2.Name = "textBox2";
195 |             this.textBox2.Size = new System.Drawing.Size(324, 35);
196 |             this.textBox2.TabIndex = 8;
197 |             this.textBox2.UseSystemPasswordChar = true;
198 |             // 
199 |             // label3
200 |             // 
201 |             this.label3.AutoSize = true;
202 |             this.label3.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
203 |             this.label3.Location = new System.Drawing.Point(23, 181);
204 |             this.label3.Name = "label3";
205 |             this.label3.Size = new System.Drawing.Size(96, 23);
206 |             this.label3.TabIndex = 33;
207 |             this.label3.Text = "Username";
208 |             // 
209 |             // textBox1
210 |             // 
211 |             this.textBox1.Enabled = false;
212 |             this.textBox1.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
213 |             this.textBox1.Location = new System.Drawing.Point(23, 211);
214 |             this.textBox1.Name = "textBox1";
215 |             this.textBox1.Size = new System.Drawing.Size(324, 35);
216 |             this.textBox1.TabIndex = 7;
217 |             // 
218 |             // txtIP
219 |             // 
220 |             this.txtIP.Enabled = false;
221 |             this.txtIP.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
222 |             this.txtIP.Location = new System.Drawing.Point(23, 132);
223 |             this.txtIP.Name = "txtIP";
224 |             this.txtIP.Size = new System.Drawing.Size(324, 35);
225 |             this.txtIP.TabIndex = 6;
226 |             // 
227 |             // label2
228 |             // 
229 |             this.label2.AutoSize = true;
230 |             this.label2.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
231 |             this.label2.Location = new System.Drawing.Point(23, 102);
232 |             this.label2.Name = "label2";
233 |             this.label2.Size = new System.Drawing.Size(89, 23);
234 |             this.label2.TabIndex = 34;
235 |             this.label2.Text = "Server IP";
236 |             // 
237 |             // label6
238 |             // 
239 |             this.label6.AutoSize = true;
240 |             this.label6.Font = new System.Drawing.Font("Times New Roman", 20.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
241 |             this.label6.ForeColor = System.Drawing.Color.Maroon;
242 |             this.label6.Location = new System.Drawing.Point(140, 58);
243 |             this.label6.Name = "label6";
244 |             this.label6.Size = new System.Drawing.Size(89, 31);
245 |             this.label6.TabIndex = 29;
246 |             this.label6.Text = "Signin";
247 |             // 
248 |             // label1
249 |             // 
250 |             this.label1.AutoSize = true;
251 |             this.label1.Font = new System.Drawing.Font("Times New Roman", 27.75F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
252 |             this.label1.ForeColor = System.Drawing.Color.Maroon;
253 |             this.label1.Location = new System.Drawing.Point(46, 15);
254 |             this.label1.Name = "label1";
255 |             this.label1.Size = new System.Drawing.Size(269, 43);
256 |             this.label1.TabIndex = 30;
257 |             this.label1.Text = "Server Chat-app";
258 |             // 
259 |             // Login
260 |             // 
261 |             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
262 |             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
263 |             this.ClientSize = new System.Drawing.Size(370, 450);
264 |             this.Controls.Add(this.btnLogin);
265 |             this.Controls.Add(this.lblSignin);
266 |             this.Controls.Add(this.label7);
267 |             this.Controls.Add(this.txtLoginPassword);
268 |             this.Controls.Add(this.label8);
269 |             this.Controls.Add(this.txtLoginUsername);
270 |             this.Controls.Add(this.txtLoginIP);
271 |             this.Controls.Add(this.label9);
272 |             this.Controls.Add(this.label10);
273 |             this.Controls.Add(this.label11);
274 |             this.Controls.Add(this.btnStart);
275 |             this.Controls.Add(this.label5);
276 |             this.Controls.Add(this.label4);
277 |             this.Controls.Add(this.textBox2);
278 |             this.Controls.Add(this.label3);
279 |             this.Controls.Add(this.textBox1);
280 |             this.Controls.Add(this.txtIP);
281 |             this.Controls.Add(this.label2);
282 |             this.Controls.Add(this.label6);
283 |             this.Controls.Add(this.label1);
284 |             this.Name = "Login";
285 |             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
286 |             this.Text = "Login";
287 |             this.ResumeLayout(false);
288 |             this.PerformLayout();
289 | 
290 |         }
291 | 
292 |         #endregion
293 | 
294 |         private Button btnLogin;
295 |         private Label lblSignin;
296 |         private Label label7;
297 |         private TextBox txtLoginPassword;
298 |         private Label label8;
299 |         private TextBox txtLoginUsername;
300 |         private TextBox txtLoginIP;
301 |         private Label label9;
302 |         private Label label10;
303 |         private Label label11;
304 |         private Button btnStart;
305 |         private Label label5;
306 |         private Label label4;
307 |         private TextBox textBox2;
308 |         private Label label3;
309 |         private TextBox textBox1;
310 |         private TextBox txtIP;
311 |         private Label label2;
312 |         private Label label6;
313 |         private Label label1;
314 |     }
315 | }


--------------------------------------------------------------------------------
/Chat-app Client/Signin.Designer.cs:
--------------------------------------------------------------------------------
  1 | namespace Chat_app_Client
  2 | {
  3 |     partial class Signin
  4 |     {
  5 |         /// <summary>
  6 |         /// Required designer variable.
  7 |         /// </summary>
  8 |         private System.ComponentModel.IContainer components = null;
  9 | 
 10 |         /// <summary>
 11 |         /// Clean up any resources being used.
 12 |         /// </summary>
 13 |         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
 14 |         protected override void Dispose(bool disposing)
 15 |         {
 16 |             if (disposing && (components != null))
 17 |             {
 18 |                 components.Dispose();
 19 |             }
 20 |             base.Dispose(disposing);
 21 |         }
 22 | 
 23 |         #region Windows Form Designer generated code
 24 | 
 25 |         /// <summary>
 26 |         /// Required method for Designer support - do not modify
 27 |         /// the contents of this method with the code editor.
 28 |         /// </summary>
 29 |         private void InitializeComponent()
 30 |         {
 31 |             this.btnStart = new System.Windows.Forms.Button();
 32 |             this.label5 = new System.Windows.Forms.Label();
 33 |             this.label4 = new System.Windows.Forms.Label();
 34 |             this.textBox2 = new System.Windows.Forms.TextBox();
 35 |             this.label3 = new System.Windows.Forms.Label();
 36 |             this.textBox1 = new System.Windows.Forms.TextBox();
 37 |             this.txtIP = new System.Windows.Forms.TextBox();
 38 |             this.label2 = new System.Windows.Forms.Label();
 39 |             this.label6 = new System.Windows.Forms.Label();
 40 |             this.label1 = new System.Windows.Forms.Label();
 41 |             this.btnSignin = new System.Windows.Forms.Button();
 42 |             this.lblSignin = new System.Windows.Forms.Label();
 43 |             this.label7 = new System.Windows.Forms.Label();
 44 |             this.txtSigninPassword = new System.Windows.Forms.TextBox();
 45 |             this.label8 = new System.Windows.Forms.Label();
 46 |             this.txtSigninUsername = new System.Windows.Forms.TextBox();
 47 |             this.txtSigninIP = new System.Windows.Forms.TextBox();
 48 |             this.label9 = new System.Windows.Forms.Label();
 49 |             this.label10 = new System.Windows.Forms.Label();
 50 |             this.label11 = new System.Windows.Forms.Label();
 51 |             this.SuspendLayout();
 52 |             // 
 53 |             // btnStart
 54 |             // 
 55 |             this.btnStart.BackColor = System.Drawing.Color.RosyBrown;
 56 |             this.btnStart.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
 57 |             this.btnStart.Font = new System.Drawing.Font("Times New Roman", 21.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
 58 |             this.btnStart.ForeColor = System.Drawing.Color.Maroon;
 59 |             this.btnStart.Location = new System.Drawing.Point(23, 356);
 60 |             this.btnStart.Name = "btnStart";
 61 |             this.btnStart.Size = new System.Drawing.Size(324, 36);
 62 |             this.btnStart.TabIndex = 14;
 63 |             this.btnStart.Text = "Start";
 64 |             this.btnStart.UseVisualStyleBackColor = false;
 65 |             // 
 66 |             // label5
 67 |             // 
 68 |             this.label5.AutoSize = true;
 69 |             this.label5.Font = new System.Drawing.Font("Times New Roman", 14.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Italic | System.Drawing.FontStyle.Underline))), System.Drawing.GraphicsUnit.Point);
 70 |             this.label5.Location = new System.Drawing.Point(88, 415);
 71 |             this.label5.Name = "label5";
 72 |             this.label5.Size = new System.Drawing.Size(195, 21);
 73 |             this.label5.TabIndex = 11;
 74 |             this.label5.Text = "Don’t have an account?";
 75 |             // 
 76 |             // label4
 77 |             // 
 78 |             this.label4.AutoSize = true;
 79 |             this.label4.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
 80 |             this.label4.Location = new System.Drawing.Point(23, 260);
 81 |             this.label4.Name = "label4";
 82 |             this.label4.Size = new System.Drawing.Size(93, 23);
 83 |             this.label4.TabIndex = 12;
 84 |             this.label4.Text = "Password";
 85 |             // 
 86 |             // textBox2
 87 |             // 
 88 |             this.textBox2.Enabled = false;
 89 |             this.textBox2.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
 90 |             this.textBox2.Location = new System.Drawing.Point(23, 290);
 91 |             this.textBox2.Name = "textBox2";
 92 |             this.textBox2.Size = new System.Drawing.Size(324, 35);
 93 |             this.textBox2.TabIndex = 4;
 94 |             this.textBox2.UseSystemPasswordChar = true;
 95 |             // 
 96 |             // label3
 97 |             // 
 98 |             this.label3.AutoSize = true;
 99 |             this.label3.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
100 |             this.label3.Location = new System.Drawing.Point(23, 181);
101 |             this.label3.Name = "label3";
102 |             this.label3.Size = new System.Drawing.Size(96, 23);
103 |             this.label3.TabIndex = 13;
104 |             this.label3.Text = "Username";
105 |             // 
106 |             // textBox1
107 |             // 
108 |             this.textBox1.Enabled = false;
109 |             this.textBox1.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
110 |             this.textBox1.Location = new System.Drawing.Point(23, 211);
111 |             this.textBox1.Name = "textBox1";
112 |             this.textBox1.Size = new System.Drawing.Size(324, 35);
113 |             this.textBox1.TabIndex = 2;
114 |             // 
115 |             // txtIP
116 |             // 
117 |             this.txtIP.Enabled = false;
118 |             this.txtIP.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
119 |             this.txtIP.Location = new System.Drawing.Point(23, 132);
120 |             this.txtIP.Name = "txtIP";
121 |             this.txtIP.Size = new System.Drawing.Size(324, 35);
122 |             this.txtIP.TabIndex = 3;
123 |             // 
124 |             // label2
125 |             // 
126 |             this.label2.AutoSize = true;
127 |             this.label2.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
128 |             this.label2.Location = new System.Drawing.Point(23, 102);
129 |             this.label2.Name = "label2";
130 |             this.label2.Size = new System.Drawing.Size(89, 23);
131 |             this.label2.TabIndex = 14;
132 |             this.label2.Text = "Server IP";
133 |             // 
134 |             // label6
135 |             // 
136 |             this.label6.AutoSize = true;
137 |             this.label6.Font = new System.Drawing.Font("Times New Roman", 20.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
138 |             this.label6.ForeColor = System.Drawing.Color.Maroon;
139 |             this.label6.Location = new System.Drawing.Point(140, 58);
140 |             this.label6.Name = "label6";
141 |             this.label6.Size = new System.Drawing.Size(89, 31);
142 |             this.label6.TabIndex = 9;
143 |             this.label6.Text = "Signin";
144 |             // 
145 |             // label1
146 |             // 
147 |             this.label1.AutoSize = true;
148 |             this.label1.Font = new System.Drawing.Font("Times New Roman", 27.75F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
149 |             this.label1.ForeColor = System.Drawing.Color.Maroon;
150 |             this.label1.Location = new System.Drawing.Point(46, 15);
151 |             this.label1.Name = "label1";
152 |             this.label1.Size = new System.Drawing.Size(269, 43);
153 |             this.label1.TabIndex = 10;
154 |             this.label1.Text = "Server Chat-app";
155 |             // 
156 |             // btnSignin
157 |             // 
158 |             this.btnSignin.BackColor = System.Drawing.Color.RosyBrown;
159 |             this.btnSignin.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
160 |             this.btnSignin.Font = new System.Drawing.Font("Times New Roman", 21.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
161 |             this.btnSignin.ForeColor = System.Drawing.Color.Maroon;
162 |             this.btnSignin.Location = new System.Drawing.Point(23, 352);
163 |             this.btnSignin.Name = "btnSignin";
164 |             this.btnSignin.Size = new System.Drawing.Size(324, 46);
165 |             this.btnSignin.TabIndex = 4;
166 |             this.btnSignin.Text = "Signin";
167 |             this.btnSignin.UseVisualStyleBackColor = false;
168 |             this.btnSignin.Click += new System.EventHandler(this.btnSignin_Click);
169 |             // 
170 |             // lblSignin
171 |             // 
172 |             this.lblSignin.AutoSize = true;
173 |             this.lblSignin.Cursor = System.Windows.Forms.Cursors.Hand;
174 |             this.lblSignin.Font = new System.Drawing.Font("Times New Roman", 14.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Italic | System.Drawing.FontStyle.Underline))), System.Drawing.GraphicsUnit.Point);
175 |             this.lblSignin.Location = new System.Drawing.Point(88, 415);
176 |             this.lblSignin.Name = "lblSignin";
177 |             this.lblSignin.Size = new System.Drawing.Size(209, 21);
178 |             this.lblSignin.TabIndex = 5;
179 |             this.lblSignin.Text = "Already have an account?";
180 |             this.lblSignin.Click += new System.EventHandler(this.lblSignin_Click);
181 |             // 
182 |             // label7
183 |             // 
184 |             this.label7.AutoSize = true;
185 |             this.label7.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
186 |             this.label7.Location = new System.Drawing.Point(23, 260);
187 |             this.label7.Name = "label7";
188 |             this.label7.Size = new System.Drawing.Size(93, 23);
189 |             this.label7.TabIndex = 22;
190 |             this.label7.Text = "Password";
191 |             // 
192 |             // txtSigninPassword
193 |             // 
194 |             this.txtSigninPassword.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
195 |             this.txtSigninPassword.Location = new System.Drawing.Point(23, 290);
196 |             this.txtSigninPassword.Name = "txtSigninPassword";
197 |             this.txtSigninPassword.Size = new System.Drawing.Size(324, 35);
198 |             this.txtSigninPassword.TabIndex = 3;
199 |             this.txtSigninPassword.UseSystemPasswordChar = true;
200 |             // 
201 |             // label8
202 |             // 
203 |             this.label8.AutoSize = true;
204 |             this.label8.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
205 |             this.label8.Location = new System.Drawing.Point(23, 181);
206 |             this.label8.Name = "label8";
207 |             this.label8.Size = new System.Drawing.Size(96, 23);
208 |             this.label8.TabIndex = 23;
209 |             this.label8.Text = "Username";
210 |             // 
211 |             // txtSigninUsername
212 |             // 
213 |             this.txtSigninUsername.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
214 |             this.txtSigninUsername.Location = new System.Drawing.Point(23, 211);
215 |             this.txtSigninUsername.Name = "txtSigninUsername";
216 |             this.txtSigninUsername.Size = new System.Drawing.Size(324, 35);
217 |             this.txtSigninUsername.TabIndex = 1;
218 |             // 
219 |             // txtSigninIP
220 |             // 
221 |             this.txtSigninIP.Font = new System.Drawing.Font("Times New Roman", 18F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
222 |             this.txtSigninIP.Location = new System.Drawing.Point(23, 132);
223 |             this.txtSigninIP.Name = "txtSigninIP";
224 |             this.txtSigninIP.Size = new System.Drawing.Size(324, 35);
225 |             this.txtSigninIP.TabIndex = 0;
226 |             // 
227 |             // label9
228 |             // 
229 |             this.label9.AutoSize = true;
230 |             this.label9.Font = new System.Drawing.Font("Times New Roman", 15.75F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point);
231 |             this.label9.Location = new System.Drawing.Point(23, 102);
232 |             this.label9.Name = "label9";
233 |             this.label9.Size = new System.Drawing.Size(89, 23);
234 |             this.label9.TabIndex = 24;
235 |             this.label9.Text = "Server IP";
236 |             // 
237 |             // label10
238 |             // 
239 |             this.label10.AutoSize = true;
240 |             this.label10.Font = new System.Drawing.Font("Times New Roman", 20.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
241 |             this.label10.ForeColor = System.Drawing.Color.Maroon;
242 |             this.label10.Location = new System.Drawing.Point(140, 58);
243 |             this.label10.Name = "label10";
244 |             this.label10.Size = new System.Drawing.Size(89, 31);
245 |             this.label10.TabIndex = 19;
246 |             this.label10.Text = "Signin";
247 |             // 
248 |             // label11
249 |             // 
250 |             this.label11.AutoSize = true;
251 |             this.label11.Font = new System.Drawing.Font("Times New Roman", 27.75F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
252 |             this.label11.ForeColor = System.Drawing.Color.Maroon;
253 |             this.label11.Location = new System.Drawing.Point(46, 15);
254 |             this.label11.Name = "label11";
255 |             this.label11.Size = new System.Drawing.Size(264, 43);
256 |             this.label11.TabIndex = 20;
257 |             this.label11.Text = "Client Chat-app";
258 |             // 
259 |             // Signin
260 |             // 
261 |             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
262 |             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
263 |             this.ClientSize = new System.Drawing.Size(370, 450);
264 |             this.Controls.Add(this.btnSignin);
265 |             this.Controls.Add(this.lblSignin);
266 |             this.Controls.Add(this.label7);
267 |             this.Controls.Add(this.txtSigninPassword);
268 |             this.Controls.Add(this.label8);
269 |             this.Controls.Add(this.txtSigninUsername);
270 |             this.Controls.Add(this.txtSigninIP);
271 |             this.Controls.Add(this.label9);
272 |             this.Controls.Add(this.label10);
273 |             this.Controls.Add(this.label11);
274 |             this.Controls.Add(this.btnStart);
275 |             this.Controls.Add(this.label5);
276 |             this.Controls.Add(this.label4);
277 |             this.Controls.Add(this.textBox2);
278 |             this.Controls.Add(this.label3);
279 |             this.Controls.Add(this.textBox1);
280 |             this.Controls.Add(this.txtIP);
281 |             this.Controls.Add(this.label2);
282 |             this.Controls.Add(this.label6);
283 |             this.Controls.Add(this.label1);
284 |             this.Name = "Signin";
285 |             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
286 |             this.Text = "Signin";
287 |             this.ResumeLayout(false);
288 |             this.PerformLayout();
289 | 
290 |         }
291 | 
292 |         #endregion
293 | 
294 |         private Button btnStart;
295 |         private Label label5;
296 |         private Label label4;
297 |         private TextBox textBox2;
298 |         private Label label3;
299 |         private TextBox textBox1;
300 |         private TextBox txtIP;
301 |         private Label label2;
302 |         private Label label6;
303 |         private Label label1;
304 |         private Button btnSignin;
305 |         private Label lblSignin;
306 |         private Label label7;
307 |         private TextBox txtSigninPassword;
308 |         private Label label8;
309 |         private TextBox txtSigninUsername;
310 |         private TextBox txtSigninIP;
311 |         private Label label9;
312 |         private Label label10;
313 |         private Label label11;
314 |     }
315 | }


--------------------------------------------------------------------------------
/Chat-app Client/ChatBox.Designer.cs:
--------------------------------------------------------------------------------
  1 | namespace Chat_app_Client
  2 | {
  3 |     partial class ChatBox
  4 |     {
  5 |         /// <summary>
  6 |         /// Required designer variable.
  7 |         /// </summary>
  8 |         private System.ComponentModel.IContainer components = null;
  9 | 
 10 |         /// <summary>
 11 |         /// Clean up any resources being used.
 12 |         /// </summary>
 13 |         /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
 14 |         protected override void Dispose(bool disposing)
 15 |         {
 16 |             if (disposing && (components != null))
 17 |             {
 18 |                 components.Dispose();
 19 |             }
 20 |             base.Dispose(disposing);
 21 |         }
 22 | 
 23 |         #region Windows Form Designer generated code
 24 | 
 25 |         /// <summary>
 26 |         /// Required method for Designer support - do not modify
 27 |         /// the contents of this method with the code editor.
 28 |         /// </summary>
 29 |         private void InitializeComponent()
 30 |         {
 31 |             System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(ChatBox));
 32 |             this.tblUser = new System.Windows.Forms.DataGridView();
 33 |             this.Online = new System.Windows.Forms.DataGridViewButtonColumn();
 34 |             this.tblGroup = new System.Windows.Forms.DataGridView();
 35 |             this.Group = new System.Windows.Forms.DataGridViewButtonColumn();
 36 |             this.rtbDialog = new System.Windows.Forms.RichTextBox();
 37 |             this.btnPicture = new System.Windows.Forms.PictureBox();
 38 |             this.txtMessage = new System.Windows.Forms.TextBox();
 39 |             this.btnSend = new System.Windows.Forms.PictureBox();
 40 |             this.lblWelcome = new System.Windows.Forms.Label();
 41 |             this.txtReceiver = new System.Windows.Forms.TextBox();
 42 |             this.btnCreateGroup = new System.Windows.Forms.Button();
 43 |             this.button1 = new System.Windows.Forms.Button();
 44 |             this.btnLike = new System.Windows.Forms.PictureBox();
 45 |             this.btnLove = new System.Windows.Forms.PictureBox();
 46 |             this.btnLaugh = new System.Windows.Forms.PictureBox();
 47 |             this.btnCry = new System.Windows.Forms.PictureBox();
 48 |             this.btnDevil = new System.Windows.Forms.PictureBox();
 49 |             ((System.ComponentModel.ISupportInitialize)(this.tblUser)).BeginInit();
 50 |             ((System.ComponentModel.ISupportInitialize)(this.tblGroup)).BeginInit();
 51 |             ((System.ComponentModel.ISupportInitialize)(this.btnPicture)).BeginInit();
 52 |             ((System.ComponentModel.ISupportInitialize)(this.btnSend)).BeginInit();
 53 |             ((System.ComponentModel.ISupportInitialize)(this.btnLike)).BeginInit();
 54 |             ((System.ComponentModel.ISupportInitialize)(this.btnLove)).BeginInit();
 55 |             ((System.ComponentModel.ISupportInitialize)(this.btnLaugh)).BeginInit();
 56 |             ((System.ComponentModel.ISupportInitialize)(this.btnCry)).BeginInit();
 57 |             ((System.ComponentModel.ISupportInitialize)(this.btnDevil)).BeginInit();
 58 |             this.SuspendLayout();
 59 |             // 
 60 |             // tblUser
 61 |             // 
 62 |             this.tblUser.AllowUserToAddRows = false;
 63 |             this.tblUser.AllowUserToDeleteRows = false;
 64 |             this.tblUser.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
 65 |             this.tblUser.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
 66 |             this.Online});
 67 |             this.tblUser.Location = new System.Drawing.Point(12, 43);
 68 |             this.tblUser.Name = "tblUser";
 69 |             this.tblUser.ReadOnly = true;
 70 |             this.tblUser.RowTemplate.Height = 25;
 71 |             this.tblUser.Size = new System.Drawing.Size(152, 201);
 72 |             this.tblUser.TabIndex = 4;
 73 |             this.tblUser.CellContentClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.tblUser_CellContentClick);
 74 |             // 
 75 |             // Online
 76 |             // 
 77 |             this.Online.HeaderText = "Online";
 78 |             this.Online.Name = "Online";
 79 |             this.Online.ReadOnly = true;
 80 |             this.Online.Resizable = System.Windows.Forms.DataGridViewTriState.False;
 81 |             this.Online.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.Automatic;
 82 |             this.Online.Width = 120;
 83 |             // 
 84 |             // tblGroup
 85 |             // 
 86 |             this.tblGroup.AllowUserToAddRows = false;
 87 |             this.tblGroup.AllowUserToDeleteRows = false;
 88 |             this.tblGroup.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
 89 |             this.tblGroup.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
 90 |             this.Group});
 91 |             this.tblGroup.Location = new System.Drawing.Point(12, 250);
 92 |             this.tblGroup.Name = "tblGroup";
 93 |             this.tblGroup.ReadOnly = true;
 94 |             this.tblGroup.RowTemplate.Height = 25;
 95 |             this.tblGroup.Size = new System.Drawing.Size(152, 201);
 96 |             this.tblGroup.TabIndex = 3;
 97 |             this.tblGroup.CellContentClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.tblGroup_CellContentClick);
 98 |             // 
 99 |             // Group
100 |             // 
101 |             this.Group.HeaderText = "Group";
102 |             this.Group.Name = "Group";
103 |             this.Group.ReadOnly = true;
104 |             this.Group.Resizable = System.Windows.Forms.DataGridViewTriState.False;
105 |             this.Group.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.Automatic;
106 |             this.Group.Width = 120;
107 |             // 
108 |             // rtbDialog
109 |             // 
110 |             this.rtbDialog.Font = new System.Drawing.Font("Times New Roman", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
111 |             this.rtbDialog.Location = new System.Drawing.Point(179, 43);
112 |             this.rtbDialog.Name = "rtbDialog";
113 |             this.rtbDialog.Size = new System.Drawing.Size(609, 372);
114 |             this.rtbDialog.TabIndex = 2;
115 |             this.rtbDialog.Text = "";
116 |             // 
117 |             // btnPicture
118 |             // 
119 |             this.btnPicture.Cursor = System.Windows.Forms.Cursors.Hand;
120 |             this.btnPicture.Image = global::Chat_app_Client.Properties.Resources.file;
121 |             this.btnPicture.Location = new System.Drawing.Point(179, 457);
122 |             this.btnPicture.Name = "btnPicture";
123 |             this.btnPicture.Size = new System.Drawing.Size(30, 30);
124 |             this.btnPicture.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
125 |             this.btnPicture.TabIndex = 2;
126 |             this.btnPicture.TabStop = false;
127 |             this.btnPicture.Click += new System.EventHandler(this.btnPicture_Click);
128 |             // 
129 |             // txtMessage
130 |             // 
131 |             this.txtMessage.Font = new System.Drawing.Font("Times New Roman", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
132 |             this.txtMessage.Location = new System.Drawing.Point(215, 458);
133 |             this.txtMessage.Name = "txtMessage";
134 |             this.txtMessage.Size = new System.Drawing.Size(538, 29);
135 |             this.txtMessage.TabIndex = 1;
136 |             this.txtMessage.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.txtMessage_KeyPress);
137 |             // 
138 |             // btnSend
139 |             // 
140 |             this.btnSend.Cursor = System.Windows.Forms.Cursors.Hand;
141 |             this.btnSend.Image = global::Chat_app_Client.Properties.Resources.send;
142 |             this.btnSend.Location = new System.Drawing.Point(759, 457);
143 |             this.btnSend.Name = "btnSend";
144 |             this.btnSend.Size = new System.Drawing.Size(30, 30);
145 |             this.btnSend.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
146 |             this.btnSend.TabIndex = 2;
147 |             this.btnSend.TabStop = false;
148 |             this.btnSend.Click += new System.EventHandler(this.btnSend_Click);
149 |             // 
150 |             // lblWelcome
151 |             // 
152 |             this.lblWelcome.AutoSize = true;
153 |             this.lblWelcome.Font = new System.Drawing.Font("Times New Roman", 14.25F, ((System.Drawing.FontStyle)((System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic))), System.Drawing.GraphicsUnit.Point);
154 |             this.lblWelcome.ForeColor = System.Drawing.Color.Maroon;
155 |             this.lblWelcome.Location = new System.Drawing.Point(12, 9);
156 |             this.lblWelcome.Name = "lblWelcome";
157 |             this.lblWelcome.Size = new System.Drawing.Size(106, 22);
158 |             this.lblWelcome.TabIndex = 4;
159 |             this.lblWelcome.Text = "Welcome, ...";
160 |             // 
161 |             // txtReceiver
162 |             // 
163 |             this.txtReceiver.Font = new System.Drawing.Font("Times New Roman", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
164 |             this.txtReceiver.Location = new System.Drawing.Point(179, 7);
165 |             this.txtReceiver.Name = "txtReceiver";
166 |             this.txtReceiver.Size = new System.Drawing.Size(111, 29);
167 |             this.txtReceiver.TabIndex = 0;
168 |             // 
169 |             // btnCreateGroup
170 |             // 
171 |             this.btnCreateGroup.BackColor = System.Drawing.Color.RosyBrown;
172 |             this.btnCreateGroup.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
173 |             this.btnCreateGroup.Font = new System.Drawing.Font("Times New Roman", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
174 |             this.btnCreateGroup.ForeColor = System.Drawing.Color.Maroon;
175 |             this.btnCreateGroup.Location = new System.Drawing.Point(12, 458);
176 |             this.btnCreateGroup.Name = "btnCreateGroup";
177 |             this.btnCreateGroup.Size = new System.Drawing.Size(152, 29);
178 |             this.btnCreateGroup.TabIndex = 5;
179 |             this.btnCreateGroup.Text = "Create Group";
180 |             this.btnCreateGroup.UseVisualStyleBackColor = false;
181 |             this.btnCreateGroup.Click += new System.EventHandler(this.btnCreateGroup_Click);
182 |             // 
183 |             // button1
184 |             // 
185 |             this.button1.BackColor = System.Drawing.Color.DarkRed;
186 |             this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
187 |             this.button1.Font = new System.Drawing.Font("Times New Roman", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point);
188 |             this.button1.ForeColor = System.Drawing.Color.LightCoral;
189 |             this.button1.Location = new System.Drawing.Point(701, 6);
190 |             this.button1.Name = "button1";
191 |             this.button1.Size = new System.Drawing.Size(88, 29);
192 |             this.button1.TabIndex = 29;
193 |             this.button1.Text = "Logout";
194 |             this.button1.UseVisualStyleBackColor = false;
195 |             this.button1.Click += new System.EventHandler(this.button1_Click);
196 |             // 
197 |             // btnLike
198 |             // 
199 |             this.btnLike.Cursor = System.Windows.Forms.Cursors.Hand;
200 |             this.btnLike.Image = ((System.Drawing.Image)(resources.GetObject("btnLike.Image")));
201 |             this.btnLike.Location = new System.Drawing.Point(179, 421);
202 |             this.btnLike.Name = "btnLike";
203 |             this.btnLike.Size = new System.Drawing.Size(30, 30);
204 |             this.btnLike.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
205 |             this.btnLike.TabIndex = 2;
206 |             this.btnLike.TabStop = false;
207 |             this.btnLike.Click += new System.EventHandler(this.btnLike_Click);
208 |             // 
209 |             // btnLove
210 |             // 
211 |             this.btnLove.Cursor = System.Windows.Forms.Cursors.Hand;
212 |             this.btnLove.Image = ((System.Drawing.Image)(resources.GetObject("btnLove.Image")));
213 |             this.btnLove.Location = new System.Drawing.Point(229, 421);
214 |             this.btnLove.Name = "btnLove";
215 |             this.btnLove.Size = new System.Drawing.Size(30, 30);
216 |             this.btnLove.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
217 |             this.btnLove.TabIndex = 2;
218 |             this.btnLove.TabStop = false;
219 |             this.btnLove.Click += new System.EventHandler(this.btnLove_Click);
220 |             // 
221 |             // btnLaugh
222 |             // 
223 |             this.btnLaugh.Cursor = System.Windows.Forms.Cursors.Hand;
224 |             this.btnLaugh.Image = ((System.Drawing.Image)(resources.GetObject("btnLaugh.Image")));
225 |             this.btnLaugh.Location = new System.Drawing.Point(279, 421);
226 |             this.btnLaugh.Name = "btnLaugh";
227 |             this.btnLaugh.Size = new System.Drawing.Size(30, 30);
228 |             this.btnLaugh.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
229 |             this.btnLaugh.TabIndex = 2;
230 |             this.btnLaugh.TabStop = false;
231 |             this.btnLaugh.Click += new System.EventHandler(this.btnLaugh_Click);
232 |             // 
233 |             // btnCry
234 |             // 
235 |             this.btnCry.Cursor = System.Windows.Forms.Cursors.Hand;
236 |             this.btnCry.Image = ((System.Drawing.Image)(resources.GetObject("btnCry.Image")));
237 |             this.btnCry.Location = new System.Drawing.Point(329, 421);
238 |             this.btnCry.Name = "btnCry";
239 |             this.btnCry.Size = new System.Drawing.Size(30, 30);
240 |             this.btnCry.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
241 |             this.btnCry.TabIndex = 2;
242 |             this.btnCry.TabStop = false;
243 |             this.btnCry.Click += new System.EventHandler(this.btnCry_Click);
244 |             // 
245 |             // btnDevil
246 |             // 
247 |             this.btnDevil.Cursor = System.Windows.Forms.Cursors.Hand;
248 |             this.btnDevil.Image = ((System.Drawing.Image)(resources.GetObject("btnDevil.Image")));
249 |             this.btnDevil.Location = new System.Drawing.Point(379, 421);
250 |             this.btnDevil.Name = "btnDevil";
251 |             this.btnDevil.Size = new System.Drawing.Size(30, 30);
252 |             this.btnDevil.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
253 |             this.btnDevil.TabIndex = 2;
254 |             this.btnDevil.TabStop = false;
255 |             this.btnDevil.Click += new System.EventHandler(this.btnDevil_Click);
256 |             // 
257 |             // ChatBox
258 |             // 
259 |             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
260 |             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
261 |             this.ClientSize = new System.Drawing.Size(800, 497);
262 |             this.Controls.Add(this.button1);
263 |             this.Controls.Add(this.btnCreateGroup);
264 |             this.Controls.Add(this.lblWelcome);
265 |             this.Controls.Add(this.txtReceiver);
266 |             this.Controls.Add(this.txtMessage);
267 |             this.Controls.Add(this.btnSend);
268 |             this.Controls.Add(this.btnDevil);
269 |             this.Controls.Add(this.btnCry);
270 |             this.Controls.Add(this.btnLaugh);
271 |             this.Controls.Add(this.btnLove);
272 |             this.Controls.Add(this.btnLike);
273 |             this.Controls.Add(this.btnPicture);
274 |             this.Controls.Add(this.rtbDialog);
275 |             this.Controls.Add(this.tblGroup);
276 |             this.Controls.Add(this.tblUser);
277 |             this.Name = "ChatBox";
278 |             this.Text = "ChatBox";
279 |             this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.ChatBox_FormClosing);
280 |             this.Load += new System.EventHandler(this.ChatBox_Load);
281 |             ((System.ComponentModel.ISupportInitialize)(this.tblUser)).EndInit();
282 |             ((System.ComponentModel.ISupportInitialize)(this.tblGroup)).EndInit();
283 |             ((System.ComponentModel.ISupportInitialize)(this.btnPicture)).EndInit();
284 |             ((System.ComponentModel.ISupportInitialize)(this.btnSend)).EndInit();
285 |             ((System.ComponentModel.ISupportInitialize)(this.btnLike)).EndInit();
286 |             ((System.ComponentModel.ISupportInitialize)(this.btnLove)).EndInit();
287 |             ((System.ComponentModel.ISupportInitialize)(this.btnLaugh)).EndInit();
288 |             ((System.ComponentModel.ISupportInitialize)(this.btnCry)).EndInit();
289 |             ((System.ComponentModel.ISupportInitialize)(this.btnDevil)).EndInit();
290 |             this.ResumeLayout(false);
291 |             this.PerformLayout();
292 | 
293 |         }
294 | 
295 |         #endregion
296 | 
297 |         private DataGridView tblUser;
298 |         private DataGridView tblGroup;
299 |         private RichTextBox rtbDialog;
300 |         private PictureBox btnPicture;
301 |         private TextBox txtMessage;
302 |         private PictureBox btnSend;
303 |         private Label lblWelcome;
304 |         private TextBox txtReceiver;
305 |         private Button btnCreateGroup;
306 |         private Button button1;
307 |         private DataGridViewButtonColumn Online;
308 |         private DataGridViewButtonColumn Group;
309 |         private PictureBox btnLike;
310 |         private PictureBox btnLove;
311 |         private PictureBox btnLaugh;
312 |         private PictureBox btnCry;
313 |         private PictureBox btnDevil;
314 |     }
315 | }


--------------------------------------------------------------------------------
/Chat-app Client/ChatBox.cs:
--------------------------------------------------------------------------------
  1 | using Communicator;
  2 | using System;
  3 | using System.Collections.Generic;
  4 | using System.ComponentModel;
  5 | using System.Data;
  6 | using System.Drawing;
  7 | using System.Formats.Asn1;
  8 | using System.IO;
  9 | using System.Linq;
 10 | using System.Net.Http;
 11 | using System.Net.Sockets;
 12 | using System.Text;
 13 | using System.Text.Json;
 14 | using System.Threading.Tasks;
 15 | using System.Windows.Forms;
 16 | using System.Xml.Linq;
 17 | using static System.Net.Mime.MediaTypeNames;
 18 | using static System.Windows.Forms.LinkLabel;
 19 | using Application = System.Windows.Forms.Application;
 20 | 
 21 | namespace Chat_app_Client
 22 | {
 23 |     public partial class ChatBox : Form
 24 |     {
 25 |         private TcpClient server;
 26 |         private String name;
 27 |         private bool threadActive = true;
 28 |         private StreamReader streamReader;
 29 |         private StreamWriter streamWriter;
 30 | 
 31 |         public ChatBox(TcpClient server, String name)
 32 |         {
 33 |             this.server = server;
 34 |             this.name = name;
 35 |             InitializeComponent();
 36 |         }
 37 | 
 38 |         private void ChatBox_Load(object sender, EventArgs e)
 39 |         {
 40 |             streamReader = new StreamReader(server.GetStream());
 41 |             streamWriter = new StreamWriter(server.GetStream());
 42 | 
 43 |             this.Text = "Chat app - " + name;
 44 |             lblWelcome.Text = "Welcome, " + name;
 45 | 
 46 |             var mainThread = new Thread(() => receiveTheard());
 47 |             mainThread.Start();
 48 |             mainThread.IsBackground = true;
 49 |         }
 50 | 
 51 |         private void btnSend_Click(object sender, EventArgs e)
 52 |         {
 53 |             if (txtMessage.Text == "" || txtReceiver.Text == "")
 54 |             {
 55 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
 56 |                 return;
 57 |             }
 58 | 
 59 |             if (txtReceiver.Text == this.Name)
 60 |             {
 61 |                 MessageBox.Show("Could not send message to yourself", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
 62 |                 return;
 63 |             }
 64 | 
 65 |             Messages messages = new Messages(this.name, txtReceiver.Text, txtMessage.Text);
 66 |             String messageJson = JsonSerializer.Serialize(messages);
 67 |             Json json = new Json("MESSAGE", messageJson);
 68 |             sendJson(json);
 69 | 
 70 |             txtMessage.Clear();
 71 |         }
 72 | 
 73 |         private void txtMessage_KeyPress(object sender, KeyPressEventArgs e)
 74 |         {
 75 |             if ((int)e.KeyChar == 13)
 76 |             {
 77 |                 btnSend_Click(this.btnSend, e);
 78 |             }
 79 |         }
 80 | 
 81 |         private void tblGroup_CellContentClick(object sender, DataGridViewCellEventArgs e)
 82 |         {
 83 |             txtReceiver.Text = tblGroup.Rows[e.RowIndex].Cells[0].Value.ToString();
 84 |         }
 85 | 
 86 |         private void tblUser_CellContentClick(object sender, DataGridViewCellEventArgs e)
 87 |         {
 88 |             txtReceiver.Text = tblUser.Rows[e.RowIndex].Cells["Online"].Value.ToString();
 89 |         }
 90 | 
 91 |         private void btnCreateGroup_Click(object sender, EventArgs e)
 92 |         {
 93 |             new Thread(() => Application.Run(new GroupCreator(server))).Start();
 94 |         }
 95 | 
 96 |         private void btnPicture_Click(object sender, EventArgs e)
 97 |         {
 98 |             if (txtReceiver.Text == "")
 99 |             {
100 |                 MessageBox.Show("Receiver field is empty", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
101 |                 return;
102 |             }
103 | 
104 |             Thread dialogThread = new Thread(() =>
105 |             {
106 |                 try
107 |                 {
108 |                     OpenFileDialog ofd = new OpenFileDialog();
109 |                     //ofd.Filter = "jpg files(*.jpg)|*.jpg| PNG files(*.png)|*.png| All files(*.*)|*.*";
110 |                     if (ofd.ShowDialog() == DialogResult.OK)
111 |                     {
112 |                         String fName = ofd.FileName;
113 |                         String path = "";
114 |                         fName = fName.Replace("\\", "/");
115 |                         while (fName.IndexOf("/") > -1)
116 |                         {
117 |                             path += fName.Substring(0, fName.IndexOf("/") + 1);
118 |                             fName = fName.Substring(fName.IndexOf("/") + 1);
119 |                         }
120 | 
121 |                         FileMessage message = new FileMessage(this.name, txtReceiver.Text, File.ReadAllBytes(path + fName).Length.ToString(), Path.GetExtension(ofd.FileName));
122 | 
123 |                         Json json = new Json("FILE", JsonSerializer.Serialize(message));
124 |                         sendJson(json);
125 | 
126 |                         server.Client.SendFile(path + fName);
127 | 
128 |                         AppendRichTextBox(this.name, message.receiver, "The file was sent.", "");
129 |                     }
130 |                 }
131 |                 catch (Exception)
132 |                 {
133 |                     MessageBox.Show("An Error Occured", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
134 |                 }
135 |             });
136 |             dialogThread.SetApartmentState(ApartmentState.STA);
137 |             dialogThread.Start();
138 |             dialogThread.IsBackground = true;
139 |         }
140 | 
141 |         private void button1_Click(object sender, EventArgs e)
142 |         {
143 |             Json json = new Json("LOGOUT", this.name);
144 |             sendJson(json);
145 |             new Thread(() => Application.Run(new Login())).Start();
146 |             threadActive = false;
147 |             this.Close();
148 |         }
149 | 
150 |         private void receiveTheard()
151 |         {
152 |             while(server != null && threadActive)
153 |             {
154 |                 try
155 |                 {
156 |                     String jsonString = streamReader.ReadLine();
157 |                     Json? infoJson = JsonSerializer.Deserialize<Json?>(jsonString);
158 | 
159 |                     switch (infoJson.type)
160 |                     {
161 |                         case "STARTUP_FEEDBACK":
162 |                             cleanDataGridView(tblGroup);
163 |                             cleanDataGridView(tblUser);
164 | 
165 |                             Startup startup = JsonSerializer.Deserialize<Startup>(infoJson.content);
166 | 
167 |                             List<string> groups = JsonSerializer.Deserialize<List<String>>(startup.group);
168 |                             foreach(String group in groups)
169 |                             {
170 |                                 addDataInDataGridView(tblGroup, new string[] { group });
171 |                             }
172 | 
173 |                             List<string> users = JsonSerializer.Deserialize<List<String>>(startup.onlUser);
174 |                             foreach (String user in users)
175 |                             {
176 |                                 addDataInDataGridView(tblUser, new string[] { user });
177 |                             }
178 |                             break;
179 |                         case "MESSAGE":
180 |                             if (infoJson.content != null)
181 |                             {
182 |                                 Messages message = JsonSerializer.Deserialize<Messages?>(infoJson.content);
183 |                                 if (message != null)
184 |                                 {
185 |                                     if (message.sender != this.name)
186 |                                     {
187 |                                         AppendRichTextBox(message.sender, message.receiver, message.message, "");
188 |                                     }
189 |                                     else AppendRichTextBox(message.sender, message.receiver, message.message, "");
190 |                                 }
191 |                             }
192 |                             break;
193 |                         case "FILE":
194 |                             if (infoJson.content != null)
195 |                             {
196 |                                 BufferFile bufferFile = JsonSerializer.Deserialize<BufferFile>(infoJson.content);
197 |                                 List<string> ImageExtensions = new List<string> { ".JPG", ".JPEG", ".JPE", ".BMP", ".GIF", ".PNG" };
198 | 
199 |                                 if (ImageExtensions.Contains(bufferFile.extension.ToUpper()))
200 |                                 {
201 |                                     new Thread(()=> Application.Run(new ImageView(bufferFile))).Start() ;
202 | 
203 |                                     AppendRichTextBox(bufferFile.sender, bufferFile.receiver, "Shared the " + bufferFile.extension + " file in ", @Environment.CurrentDirectory);
204 |                                 }
205 |                                 else
206 |                                 {
207 |                                     string fileName = @Environment.CurrentDirectory + "/" + String.Format("{0:yyyy-MM-dd HH-mm-ss}__{1}", DateTime.Now, bufferFile.sender) + bufferFile.extension;
208 |                                     FileInfo fi = new FileInfo(fileName);
209 | 
210 |                                     try
211 |                                     {
212 |                                         // Check if file already exists. If yes, delete it.     
213 |                                         if (fi.Exists)
214 |                                         {
215 |                                             fi.Delete();
216 |                                         }
217 | 
218 |                                         using (FileStream fStream = File.Create(fileName))
219 |                                         {
220 |                                             fStream.Write(bufferFile.buffer, 0, bufferFile.buffer.Length);
221 |                                             fStream.Flush();
222 |                                             fStream.Close();
223 |                                         }
224 |                                     }
225 |                                     catch (Exception Ex)
226 |                                     {
227 |                                         Console.WriteLine(Ex.ToString());
228 |                                     }
229 | 
230 |                                     AppendRichTextBox(bufferFile.sender, bufferFile.receiver, "Shared the " + bufferFile.extension + " file in ", @Environment.CurrentDirectory);
231 |                                 }
232 |                             }
233 |                             break;
234 |                     }
235 | 
236 |                 }
237 |                 catch
238 |                 {
239 |                     threadActive = false;
240 |                 }
241 |             }
242 |         }
243 | 
244 |         private void AppendRichTextBox(string sender, string receiver, string message, string link)
245 |         {
246 |             rtbDialog.BeginInvoke(new MethodInvoker(() =>
247 |             {
248 |                 Font currentFont = rtbDialog.SelectionFont;
249 | 
250 |                 //Username
251 |                 rtbDialog.SelectionStart = rtbDialog.TextLength;
252 |                 rtbDialog.SelectionLength = 0;
253 |                 rtbDialog.SelectionColor = Color.Red;
254 |                 rtbDialog.SelectionFont = new Font(currentFont.FontFamily, currentFont.Size, FontStyle.Bold);
255 |                 rtbDialog.AppendText(sender + "<" + receiver + ">");
256 |                 rtbDialog.SelectionColor = rtbDialog.ForeColor;
257 | 
258 |                 rtbDialog.AppendText(": ");
259 | 
260 |                 //Message
261 |                 rtbDialog.SelectionStart = rtbDialog.TextLength;
262 |                 rtbDialog.SelectionLength = 0;
263 |                 rtbDialog.SelectionColor = Color.Green;
264 |                 rtbDialog.SelectionFont = new Font(currentFont.FontFamily, currentFont.Size, FontStyle.Regular);
265 |                 rtbDialog.AppendText(message);
266 |                 rtbDialog.SelectionColor = rtbDialog.ForeColor;
267 | 
268 |                 rtbDialog.AppendText(" ");
269 | 
270 |                 //link
271 |                 rtbDialog.SelectionStart = rtbDialog.TextLength;
272 |                 rtbDialog.SelectionLength = 0;
273 |                 rtbDialog.SelectionColor = Color.Blue;
274 |                 rtbDialog.SelectionFont = new Font(currentFont.FontFamily, currentFont.Size, FontStyle.Underline);
275 |                 rtbDialog.AppendText(link);
276 |                 rtbDialog.SelectionColor = rtbDialog.ForeColor;
277 | 
278 | 
279 |                 rtbDialog.SelectionStart = rtbDialog.GetFirstCharIndexOfCurrentLine();
280 |                 rtbDialog.SelectionLength = 0;
281 | 
282 |                 if (sender == this.name)
283 |                 {
284 |                     rtbDialog.SelectionAlignment = HorizontalAlignment.Right;
285 |                 }
286 |                 else rtbDialog.SelectionAlignment = HorizontalAlignment.Left;
287 | 
288 |                 rtbDialog.AppendText(Environment.NewLine);
289 |             }));
290 |         }
291 | 
292 |         private void cleanDataGridView(DataGridView dataGridView)
293 |         {
294 |             dataGridView.BeginInvoke(new MethodInvoker(() =>
295 |             {
296 |                 dataGridView.Rows.Clear();
297 |             }));
298 |             
299 |         }
300 | 
301 |         private void addDataInDataGridView(DataGridView dataGridView, String[] array)
302 |         {
303 |             dataGridView.Invoke(new Action(() => { dataGridView.Rows.Add(array); }));
304 |         }
305 | 
306 |         private void sendJson(Json json)
307 |         {
308 |             byte[] jsonUtf8Bytes = JsonSerializer.SerializeToUtf8Bytes(json);
309 |             String S = Encoding.ASCII.GetString(jsonUtf8Bytes, 0, jsonUtf8Bytes.Length);
310 | 
311 |             streamWriter.WriteLine(S);
312 |             streamWriter.Flush();
313 |         }
314 | 
315 |         private void btnLike_Click(object sender, EventArgs e)
316 |         {
317 |             
318 |             if (txtReceiver.Text == "")
319 |             {
320 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
321 |                 return;
322 |             }
323 | 
324 |             if (txtReceiver.Text == this.Name)
325 |             {
326 |                 MessageBox.Show("Could not send message to yourself", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
327 |                 return;
328 |             }
329 | 
330 |             Messages messages = new Messages(this.name, txtReceiver.Text, "👍");
331 |             String messageJson = JsonSerializer.Serialize(messages);
332 |             Json json = new Json("MESSAGE", messageJson);
333 |             sendJson(json);
334 | 
335 |             txtMessage.Clear();
336 |         }
337 | 
338 |         private void btnLove_Click(object sender, EventArgs e)
339 |         {
340 |             if (txtReceiver.Text == "")
341 |             {
342 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
343 |                 return;
344 |             }
345 | 
346 |             if (txtReceiver.Text == this.Name)
347 |             {
348 |                 MessageBox.Show("Could not send message to yourself", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
349 |                 return;
350 |             }
351 | 
352 |             Messages messages = new Messages(this.name, txtReceiver.Text, "🥰");
353 |             String messageJson = JsonSerializer.Serialize(messages);
354 |             Json json = new Json("MESSAGE", messageJson);
355 |             sendJson(json);
356 | 
357 |             txtMessage.Clear();
358 |         }
359 | 
360 |         private void btnLaugh_Click(object sender, EventArgs e)
361 |         {
362 |             if (txtReceiver.Text == "")
363 |             {
364 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
365 |                 return;
366 |             }
367 | 
368 |             if (txtReceiver.Text == this.Name)
369 |             {
370 |                 MessageBox.Show("Could not send message to yourself", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
371 |                 return;
372 |             }
373 | 
374 |             Messages messages = new Messages(this.name, txtReceiver.Text, "🤣");
375 |             String messageJson = JsonSerializer.Serialize(messages);
376 |             Json json = new Json("MESSAGE", messageJson);
377 |             sendJson(json);
378 | 
379 |             txtMessage.Clear();
380 |         }
381 | 
382 |         private void btnCry_Click(object sender, EventArgs e)
383 |         {
384 |             if (txtReceiver.Text == "")
385 |             {
386 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
387 |                 return;
388 |             }
389 | 
390 |             if (txtReceiver.Text == this.Name)
391 |             {
392 |                 MessageBox.Show("Could not send message to yourself", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
393 |                 return;
394 |             }
395 | 
396 |             Messages messages = new Messages(this.name, txtReceiver.Text, "😭");
397 |             String messageJson = JsonSerializer.Serialize(messages);
398 |             Json json = new Json("MESSAGE", messageJson);
399 |             sendJson(json);
400 | 
401 |             txtMessage.Clear();
402 |         }
403 | 
404 |         private void btnDevil_Click(object sender, EventArgs e)
405 |         {
406 |             if (txtReceiver.Text == "")
407 |             {
408 |                 MessageBox.Show("Empty Fields", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
409 |                 return;
410 |             }
411 | 
412 |             if (txtReceiver.Text == this.Name)
413 |             {
414 |                 MessageBox.Show("Could not send message to yourself", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
415 |                 return;
416 |             }
417 | 
418 |             Messages messages = new Messages(this.name, txtReceiver.Text, "😈");
419 |             String messageJson = JsonSerializer.Serialize(messages);
420 |             Json json = new Json("MESSAGE", messageJson);
421 |             sendJson(json);
422 | 
423 |             txtMessage.Clear();
424 |         }
425 | 
426 |         private void ChatBox_FormClosing(object sender, FormClosingEventArgs e)
427 |         {
428 |             Json json = new Json("LOGOUT", this.name);
429 |             sendJson(json);
430 |             threadActive = false;
431 |         }
432 |     }
433 | }
434 | 


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