Add Google Chrome keygen to the project, plus a spicey easter egg

.gitignore

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FrappeMocha.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{04AB5523-E679-4628-8B8B-B928A5DA5107}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>FrappeMocha</RootNamespace>
+    <AssemblyName>FrappeMocha</AssemblyName>
+    <TargetFrameworkVersion>v3.0</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>Resources\logo.ico</ApplicationIcon>
+  </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject>
+    </StartupObject>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Keygen.cs" />
+    <Compile Include="MainForm.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="MainForm.Designer.cs">
+      <DependentUpon>MainForm.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <EmbeddedResource Include="MainForm.resx">
+      <DependentUpon>MainForm.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+      <DesignTime>True</DesignTime>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Resources\logo.ico" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

FrappeMocha.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.1022
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FrappeMocha", "FrappeMocha.csproj", "{04AB5523-E679-4628-8B8B-B928A5DA5107}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{04AB5523-E679-4628-8B8B-B928A5DA5107}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0125FC47-F477-4F21-BE83-56EF1850412D}
+	EndGlobalSection
+EndGlobal

Keygen.cs

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+using System;
+using System.Text;
+
+namespace FrappeMocha
+{
+    public class Keygen
+    {
+        private int param_encoding;
+
+        public enum LicenseTypes
+        {
+            LicenseWindows3270 = 0x8c,
+            LicenseWindows5250 = 0x80,
+            LicenseWindows3812 = 0xa0,
+            LicenseWindowsTelnet = 0x9b,
+            LicenseJava3270 = 0x1e,
+            LicenseJava5250 = 0x1e,
+            LicenseJavaTelnet = 0x1b,
+            LicenseMac3270 = 0x5d,
+            LicenseMac5250 = 0x16,
+            LicenseMac3812 = 0x22,
+            LicenseMacTelnet = 0x5e,
+            LicenseMacKeyboard = 0xa5,
+            LicenseChrome3270 = 0xb3,
+            LicenseChrome5250 = 0xb2,
+            LicenseChromeTelnet = 0xb4,
+        }
+
+        public Keygen()
+        {
+            this.param_encoding = 0;
+        }
+
+
+        public string GenLicense(int type, string param_company, LicenseTypes license)
+        {
+            switch (license)
+            {
+                case LicenseTypes.LicenseWindows3270:
+                case LicenseTypes.LicenseWindows3812:
+                case LicenseTypes.LicenseWindows5250:
+                case LicenseTypes.LicenseWindowsTelnet:
+                    return GenLicenseWindows(type, param_company, license);
+
+                case LicenseTypes.LicenseJavaTelnet:
+                case LicenseTypes.LicenseJava3270:
+                    // case LicenseTypes.LicenseJava5250:
+                    return GenLicenseJava(type, param_company, license);
+
+                case LicenseTypes.LicenseMac3270:
+                case LicenseTypes.LicenseMac5250:
+                    return GenLicenseMacAlpha(type, param_company, license);
+
+                case LicenseTypes.LicenseMac3812:
+                case LicenseTypes.LicenseMacTelnet:
+                case LicenseTypes.LicenseMacKeyboard:
+                    return GenLicenseMacNum(type, param_company, license);
+
+                case LicenseTypes.LicenseChrome3270:
+                case LicenseTypes.LicenseChrome5250:
+                case LicenseTypes.LicenseChromeTelnet:
+                    return GenLicenseJavascript(type, param_company, license);
+            }
+            return "";
+        }
+
+        /**
+         * By far the easiest implemntation, everything was already in .NET :P
+         */
+        public string GenLicenseWindows(int type, string param_company, LicenseTypes license)
+        {
+            string param_lickey = type.ToString();
+            uint num1 = 0;
+            byte[] byteArray = this.StrToByteArray(param_company);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((int) byteArray[index] >= 65 && (int) byteArray[index] <= 90)
+                    byteArray[index] += (byte) 32; // this is basically str.toLower()
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((int) byteArray[index] >= 65) // 'A'
+                    num1 += (uint) byteArray[index] + (uint) license;
+            }
+            uint num2 = num1 * (uint) param_lickey[0];
+            uint num3 = (uint) ((int) num2 * ((int) num2 & (int) byte.MaxValue) & (int) ushort.MaxValue);
+            if (num3 < 100U)
+                num3 = 2728U;
+
+            param_lickey = (param_lickey[0].ToString() + (object) num3) + '-' +
+                           (Int32) (DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;
+
+
+            return param_lickey;
+        }
+
+        /**
+         * Pretty stright forward implementation as well
+         * .NET is just a copy of Java afterall
+         */
+        public string GenLicenseJava(int itype, string param_company, LicenseTypes license)
+        {
+            char type = (char) (itype + (int) 'A');
+            string param_lickey = type.ToString() + '@';
+            byte[] byteArray = this.StrToByteArray(param_company);
+            uint num1 = 0;
+
+            for (int b = 0; b < byteArray.Length; b++)
+            {
+                if (param_company.ToCharArray()[b] > ' ')
+                    num1 += param_company.ToCharArray()[b] + (uint) license;
+            }
+
+            uint num2 = num1 * (uint) param_lickey[0];
+            uint num3 = (uint) ((int) num2 * ((int) num2 & (int) byte.MaxValue) & (int) ushort.MaxValue);
+            param_lickey += (object) num3;
+            return param_lickey;
+        }
+
+        /**
+         * Now the fun stuff..
+         * 
+         * Beware! the Mac versions rely on datatype truncation
+         * It's a real pain in the ass to make sure the datatypes are all accurate
+         */
+        public string GenLicenseMacAlpha(int itype, string param_company, LicenseTypes license)
+        {
+            // must start with an 'a' or 'b;
+            char type = (char) (itype + (int) 'a');
+            string param_lickey = type.ToString();
+            byte[] byteArray = this.StrToByteArray(param_company);
+            short num1 = 0;
+
+            for (int b = 0; b < byteArray.Length; b++)
+            {
+                if (param_company.ToCharArray()[b] >= 0x21)
+                    num1 += (short) (param_company.ToCharArray()[b] + license);
+            }
+
+            ushort num2 = (ushort) (num1 * (short) param_lickey[0]);
+            param_lickey += (ushort) ((num2 & byte.MaxValue) * num2);
+            return param_lickey;
+        }
+
+        /**
+         * Beware! the Mac versions rely on datatype truncation
+         * It's a real pain in the ass to make sure the datatypes are all accurate
+         * 
+         * There's a special case for the MacKeyboard as it deviates from the rest of the algoritm
+         * The (byte) cast is extmely important
+         */
+        public string GenLicenseMacNum(int itype, string param_company, LicenseTypes license)
+        {
+            char type = (char) (itype + (int) '0');
+            string param_lickey = type.ToString();
+            uint num1 = 0;
+            byte[] byteArray = this.StrToByteArray(param_company);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if (license == LicenseTypes.LicenseMacKeyboard && (byte) (byteArray[index] + 0xbf) < 0x1a)
+                {
+                    byteArray[index] += 32;
+                }
+                else if (license != LicenseTypes.LicenseMacKeyboard && byteArray[index] + 0xbf < 0x1a)
+                {
+                    byteArray[index] += 32;
+                }
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((int) byteArray[index] >= 0x41) // 'A'
+                    num1 += (uint) byteArray[index] + (uint) license;
+            }
+
+            uint num2 = (uint) (num1 * (int) param_lickey[0]);
+            num2 = (uint) (num2 * (num2 & byte.MaxValue) & ushort.MaxValue);
+            ulong num3 = 0xaa8;
+            if (99 < num2)
+            {
+                num3 = (ulong) num2;
+            }
+
+            param_lickey = param_lickey[0].ToString() + (object) num3;
+
+
+            return param_lickey;
+        }
+
+        /**
+         * This one was fun as well
+         * Found out that the license must end with "45" in order to validate
+         */
+        public string GenLicenseJavascript(int itype, string param_company, LicenseTypes license)
+        {
+            char type = (char) (itype + (int) '0');
+            string param_lickey = type.ToString();
+            ulong sum = 0;
+            byte[] byteArray = this.StrToByteArray(param_company);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong) byteArray[index] >= 65 && (ulong) byteArray[index] <= 90)
+                    byteArray[index] += 32; // this is basically str.toLower()
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong) byteArray[index] >= 65 && (ulong) byteArray[index] <= 122)
+                {
+                    sum += byteArray[index] + (uint) license;
+                }
+            }
+            sum = sum * param_lickey[0];
+            sum = sum * (sum & byte.MaxValue) & ushort.MaxValue;
+            if (sum < 100U)
+                sum = 2728U;
+
+            param_lickey = (param_lickey[0].ToString() + (object) sum) + '-' +
+                           (Int32) (DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1))).TotalSeconds
+                           + "45"; // a little salt, as a treat
+
+            return param_lickey;
+        }
+
+
+        public bool CheckLicense(string param_lickey, string param_company, LicenseTypes license)
+        {
+            switch (license)
+            {
+                case LicenseTypes.LicenseWindows3270:
+                case LicenseTypes.LicenseWindows3812:
+                case LicenseTypes.LicenseWindows5250:
+                case LicenseTypes.LicenseWindowsTelnet:
+                    return CheckLicenseWindows(param_lickey, param_company, license);
+
+                case LicenseTypes.LicenseJavaTelnet:
+                case LicenseTypes.LicenseJava3270:
+                    // case LicenseTypes.LicenseJava5250:
+                    return CheckLicenseJava(param_lickey, param_company, license);
+
+                case LicenseTypes.LicenseMac3270:
+                case LicenseTypes.LicenseMac5250:
+                case LicenseTypes.LicenseMac3812:
+                case LicenseTypes.LicenseMacTelnet:
+                case LicenseTypes.LicenseMacKeyboard:
+                    return CheckLicenseMac(param_lickey, param_company, license);
+
+                case LicenseTypes.LicenseChrome3270:
+                case LicenseTypes.LicenseChrome5250:
+                case LicenseTypes.LicenseChromeTelnet:
+                    return CheckLicenseJavaScript(param_lickey, param_company, license);
+            }
+            return false;
+        }
+
+        /**
+         * All Javascript licenses need to end with "45" in order to validate
+         */
+        public bool CheckLicenseJavaScript(string param_lickey, string param_company, LicenseTypes license)
+        {
+            ulong sum = 0;
+            byte[] byteArray = this.StrToByteArray(param_company);
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong) byteArray[index] >= 65 && (ulong) byteArray[index] <= 90)
+                    byteArray[index] += 32; // this is basically str.toLower()
+            }
+
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((ulong) byteArray[index] >= 65 && (ulong) byteArray[index] <= 122)
+                {
+                    sum += byteArray[index] + (uint) license;
+                }
+            }
+            sum = sum * param_lickey[0];
+            sum = sum * (sum & byte.MaxValue) & ushort.MaxValue;
+            if (sum < 100U)
+                sum = 2728U;
+
+            if (!param_lickey.StartsWith(param_lickey[0].ToString() + (object) sum) || !param_lickey.EndsWith("45"))
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+
+        /**
+         * @todo: write some sanity checks
+         */
+        public bool CheckLicenseJava(string param_lickey, string param_company, LicenseTypes license)
+        {
+            return true;
+        }
+
+
+        /**
+         * @todo: write some sanity checks
+         */
+        public bool CheckLicenseMac(string param_lickey, string param_company, LicenseTypes license)
+        {
+            return true;
+        }
+
+        public bool CheckLicenseWindows(string param_lickey, string param_company, LicenseTypes license)
+        {
+            uint num1 = 0;
+            if (param_company == null || param_company.Length < 2)
+                return false;
+            byte[] byteArray = this.StrToByteArray(param_company);
+            if (param_lickey == null || param_lickey.Length < 6)
+                return false;
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                // >= 'A' && <= 'Z'
+                if ((int) byteArray[index] >= 65 && (int) byteArray[index] <= 90)
+                    byteArray[index] += (byte) 32;
+            }
+            for (int index = 0; index < byteArray.Length; ++index)
+            {
+                if ((int) byteArray[index] >= 65) // 'A'
+                    num1 += (uint) byteArray[index] + (uint) license;
+            }
+            uint num2 = num1 * (uint) param_lickey[0];
+            uint num3 = (uint) ((int) num2 * ((int) num2 & (int) byte.MaxValue) & (int) ushort.MaxValue);
+            if (num3 < 100U)
+                num3 = 2728U;
+
+            if (param_lickey.StartsWith((param_lickey[0].ToString() ?? "") + (object) num3))
+            {
+                //this.aa = param_lickey.Substring(0, 1);
+                return true;
+            }
+            //this.aa = "";
+            return false;
+        }
+
+        public byte[] StrToByteArray(string str)
+        {
+            try
+            {
+                return Encoding.GetEncoding(this.param_encoding).GetBytes(str);
+            }
+            catch (Exception ex1)
+            {
+                try
+                {
+                    return Encoding.GetEncoding(0).GetBytes(str);
+                }
+                catch (Exception ex2)
+                {
+                    return new byte[1] {(byte) 63};
+                }
+            }
+        }
+
+        public string ByteArrayToStr(byte[] barr, int index, int length)
+        {
+            try
+            {
+                return Encoding.GetEncoding(this.param_encoding).GetString(barr, index, length);
+            }
+            catch (Exception ex1)
+            {
+                try
+                {
+                    return Encoding.GetEncoding(0).GetString(barr, index, length);
+                }
+                catch (Exception ex2)
+                {
+                    return "?";
+                }
+            }
+        }
+    }
+}

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Amrit Panesar
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

MainForm.Designer.cs

@@ -0,0 +1,189 @@
+namespace FrappeMocha
+{
+    partial class MainForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(MainForm));
+            this.TypeDropDown = new System.Windows.Forms.ComboBox();
+            this.companytext = new System.Windows.Forms.TextBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.companyusernamelabel = new System.Windows.Forms.Label();
+            this.label3 = new System.Windows.Forms.Label();
+            this.licensebox = new System.Windows.Forms.TextBox();
+            this.submit = new System.Windows.Forms.Button();
+            this.label2 = new System.Windows.Forms.Label();
+            this.productSelect = new System.Windows.Forms.ComboBox();
+            this.SuspendLayout();
+            // 
+            // TypeDropDown
+            // 
+            this.TypeDropDown.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.TypeDropDown.FormattingEnabled = true;
+            this.TypeDropDown.Items.AddRange(new object[] {
+            "Company License",
+            "Single User License"});
+            this.TypeDropDown.Location = new System.Drawing.Point(12, 65);
+            this.TypeDropDown.Name = "TypeDropDown";
+            this.TypeDropDown.Size = new System.Drawing.Size(146, 21);
+            this.TypeDropDown.TabIndex = 0;
+            this.TypeDropDown.SelectedIndexChanged += new System.EventHandler(this.TypeDropDown_SelectedIndexChanged);
+            // 
+            // companytext
+            // 
+            this.companytext.Location = new System.Drawing.Point(12, 105);
+            this.companytext.MaxLength = 80;
+            this.companytext.Name = "companytext";
+            this.companytext.Size = new System.Drawing.Size(146, 20);
+            this.companytext.TabIndex = 1;
+            this.companytext.Text = "FrappeMocha";
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(9, 49);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(71, 13);
+            this.label1.TabIndex = 2;
+            this.label1.Text = "License Type";
+            // 
+            // companyusernamelabel
+            // 
+            this.companyusernamelabel.AutoSize = true;
+            this.companyusernamelabel.Location = new System.Drawing.Point(9, 89);
+            this.companyusernamelabel.Name = "companyusernamelabel";
+            this.companyusernamelabel.Size = new System.Drawing.Size(115, 13);
+            this.companyusernamelabel.TabIndex = 3;
+            this.companyusernamelabel.Text = "Company / User Name";
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.Location = new System.Drawing.Point(9, 128);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(65, 13);
+            this.label3.TabIndex = 4;
+            this.label3.Text = "License Key";
+            // 
+            // licensebox
+            // 
+            this.licensebox.Location = new System.Drawing.Point(12, 144);
+            this.licensebox.Name = "licensebox";
+            this.licensebox.ReadOnly = true;
+            this.licensebox.Size = new System.Drawing.Size(146, 20);
+            this.licensebox.TabIndex = 5;
+            this.licensebox.Click += new System.EventHandler(this.licensebox_Click);
+            // 
+            // submit
+            // 
+            this.submit.Location = new System.Drawing.Point(12, 175);
+            this.submit.Name = "submit";
+            this.submit.Size = new System.Drawing.Size(146, 23);
+            this.submit.TabIndex = 6;
+            this.submit.Text = "Frappe Mocha";
+            this.submit.UseVisualStyleBackColor = true;
+            this.submit.Click += new System.EventHandler(this.submit_Click);
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(12, 9);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(44, 13);
+            this.label2.TabIndex = 7;
+            this.label2.Text = "Product";
+            // 
+            // productSelect
+            // 
+            this.productSelect.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.productSelect.FormattingEnabled = true;
+            this.productSelect.Items.AddRange(new object[] {
+            "TN3270 for Windows",
+            "TN5250 for Windows",
+            "TN3812 for Windows",
+            "Telnet for Windows",
+            "TN3270 for Java",
+            "TN5250 for Java",
+            "Telnet for Java",
+            "TN3270 for Mac OS X",
+            "TN5250 for Mac OS X",
+            "TN3812 for Mac OS X",
+            "Telnet for Mac OS X",
+            "Keyboard for Mac OS X",
+            "TN3270 for Google Chrome",
+            "TN5250 for Google Chrome",
+            "Telnet for Google Chrome"});
+            this.productSelect.Location = new System.Drawing.Point(12, 25);
+            this.productSelect.Name = "productSelect";
+            this.productSelect.Size = new System.Drawing.Size(146, 21);
+            this.productSelect.TabIndex = 8;
+            this.productSelect.SelectedIndexChanged += new System.EventHandler(this.productSelect_SelectedIndexChanged);
+            // 
+            // MainForm
+            // 
+            this.AcceptButton = this.submit;
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.BackColor = System.Drawing.SystemColors.Window;
+            this.ClientSize = new System.Drawing.Size(173, 210);
+            this.Controls.Add(this.productSelect);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.submit);
+            this.Controls.Add(this.licensebox);
+            this.Controls.Add(this.label3);
+            this.Controls.Add(this.companyusernamelabel);
+            this.Controls.Add(this.label1);
+            this.Controls.Add(this.companytext);
+            this.Controls.Add(this.TypeDropDown);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
+            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
+            this.KeyPreview = true;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "MainForm";
+            this.Text = "FrappeMocha";
+            this.Shown += new System.EventHandler(this.MainForm_Shown);
+            this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.MainForm_KeyPress);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.ComboBox TypeDropDown;
+        private System.Windows.Forms.TextBox companytext;
+        private System.Windows.Forms.Label label1;
+        private System.Windows.Forms.Label companyusernamelabel;
+        private System.Windows.Forms.Label label3;
+        private System.Windows.Forms.TextBox licensebox;
+        private System.Windows.Forms.Button submit;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.ComboBox productSelect;
+    }
+}
+

MainForm.cs

@@ -0,0 +1,250 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Diagnostics;
+using System.Drawing;
+using System.Text;
+using System.Windows.Forms;
+
+namespace FrappeMocha
+{
+    public partial class MainForm : Form
+    {
+        protected Keygen frappeKeygen;
+        private char[] ficus = new char[6];
+        private object[] windowsLicenseTypeItems = new object[2];
+        private object[] macLicenseTypeItems = new object[1];
+        private object[] javaLicenseTypeItems = new object[5];
+
+        public MainForm()
+        {
+            InitializeComponent();
+            TypeDropDown.SelectedIndex = 0;
+            productSelect.SelectedIndex = 0;
+            frappeKeygen = new Keygen();
+            this.initDropDownMenuItems();
+        }
+
+        private void initDropDownMenuItems()
+        {
+            TypeDropDown.Items.CopyTo(windowsLicenseTypeItems, 0);
+
+            initJavaLicenseTypeItems();
+            initMacLicenseTypeItems();
+
+            TypeDropDown.Items.Clear();
+            TypeDropDown.Items.AddRange(this.windowsLicenseTypeItems);
+            TypeDropDown.SelectedIndex = 0;
+        }
+
+        private void initJavaLicenseTypeItems()
+        {
+            TypeDropDown.Items.Clear();
+            for (int i = 0; i < 5; i++)
+            {
+                TypeDropDown.Items.Add((char) ('A' + i));
+            }
+            TypeDropDown.Items.CopyTo(this.javaLicenseTypeItems, 0);
+        }
+
+        private void initMacLicenseTypeItems()
+        {
+            TypeDropDown.Items.Clear();
+            for (int i = 0; i < 1; i++)
+            {
+                TypeDropDown.Items.Add((char) ('0' + i));
+            }
+            TypeDropDown.Items.CopyTo(this.macLicenseTypeItems, 0);
+        }
+
+        private void submit_Click(object sender, EventArgs e)
+        {
+            switch (productSelect.SelectedIndex)
+            {
+                case 0:
+                    this.keygen(Keygen.LicenseTypes.LicenseWindows3270);
+                    break;
+
+                case 1:
+                    this.keygen(Keygen.LicenseTypes.LicenseWindows5250);
+                    break;
+
+                case 2:
+                    this.keygen(Keygen.LicenseTypes.LicenseWindows3812);
+                    break;
+
+                case 3:
+                    this.keygen(Keygen.LicenseTypes.LicenseWindowsTelnet);
+                    break;
+
+                case 4:
+                    this.keygen(Keygen.LicenseTypes.LicenseJava3270);
+                    break;
+
+                case 5:
+                    this.keygen(Keygen.LicenseTypes.LicenseJava5250);
+                    break;
+
+                case 6:
+                    this.keygen(Keygen.LicenseTypes.LicenseJavaTelnet);
+                    break;
+
+                case 7:
+                    this.keygen(Keygen.LicenseTypes.LicenseMac3270);
+                    break;
+
+                case 8:
+                    this.keygen(Keygen.LicenseTypes.LicenseMac5250);
+                    break;
+
+                case 9:
+                    this.keygen(Keygen.LicenseTypes.LicenseMac3812);
+                    break;
+
+                case 10:
+                    this.keygen(Keygen.LicenseTypes.LicenseMacTelnet);
+                    break;
+
+                case 11:
+                    this.keygen(Keygen.LicenseTypes.LicenseMacKeyboard);
+                    break;
+
+                case 12:
+                    this.keygen(Keygen.LicenseTypes.LicenseChrome3270);
+                    break;
+
+                case 13:
+                    this.keygen(Keygen.LicenseTypes.LicenseChrome5250);
+                    break;
+
+                case 14:
+                    this.keygen(Keygen.LicenseTypes.LicenseChromeTelnet);
+                    break;
+            }
+        }
+
+        private void TypeDropDown_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            switch (TypeDropDown.SelectedIndex)
+            {
+                case 0:
+                    companyusernamelabel.Text = "Company Name";
+                    break;
+
+                case 1:
+                    companyusernamelabel.Text = "User Name";
+                    break;
+            }
+
+            if (TypeDropDown.Items.Count > 2)
+            {
+                companyusernamelabel.Text = "Name";
+            }
+
+            AcceptButton.PerformClick();
+        }
+
+        private void keygen(Keygen.LicenseTypes license)
+        {
+            if (companytext.Text.Length <= 1)
+            {
+                MessageBox.Show(
+                    (TypeDropDown.SelectedIndex == 0
+                        ? "Company Name"
+                        : "User Name") + " must be longer than one character", "Error",
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            if (companytext.Text.Length > 80)
+            {
+                MessageBox.Show(
+                    (TypeDropDown.SelectedIndex == 0
+                        ? "Company Name"
+                        : "User Name") + " must not be greater than eighty characters", "Error",
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            string genlicense = frappeKeygen.GenLicense(TypeDropDown.SelectedIndex, companytext.Text, license);
+            if (!frappeKeygen.CheckLicense(genlicense, companytext.Text, license))
+            {
+                MessageBox.Show("Generated license did not pass self check, please try again", "Warning",
+                    MessageBoxButtons.OK,
+                    MessageBoxIcon.Warning);
+
+                return;
+            }
+
+            licensebox.Text = genlicense;
+        }
+
+        private void productSelect_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            switch (productSelect.SelectedIndex)
+            {
+                case 0:
+                case 1:
+                case 2:
+                case 3:
+                case 7: // mac type 1
+                case 8: // mac type 1
+                case 12:
+                    if (windowsLicenseTypeItems[0] != null)
+                    {
+                        TypeDropDown.Items.Clear();
+                        TypeDropDown.Items.AddRange(this.windowsLicenseTypeItems);
+                    }
+                    break;
+                case 4:
+                case 5:
+                case 6:
+                    TypeDropDown.Items.Clear();
+                    TypeDropDown.Items.AddRange(this.javaLicenseTypeItems);
+                    break;
+
+                case 9: // mac type 2
+                case 10:
+                case 11:
+                    TypeDropDown.Items.Clear();
+                    TypeDropDown.Items.AddRange(this.macLicenseTypeItems);
+                    break;
+            }
+            TypeDropDown.SelectedIndex = 0;
+            AcceptButton.PerformClick();
+        }
+
+        private void licensebox_Click(object sender, EventArgs e)
+        {
+            licensebox.SelectAll();
+        }
+
+        private void MainForm_Shown(object sender, EventArgs e)
+        {
+            AcceptButton.PerformClick();
+        }
+
+        private void MainForm_KeyPress(object sender, KeyPressEventArgs e)
+        {
+            Array.Copy(this.ficus, 1, this.ficus, 0, this.ficus.Length -1);
+            this.ficus[ficus.Length -1] = e.KeyChar;
+            if (new string (ficus) == "spicey")
+            {
+                switch (MessageBox.Show("Would you like a little salt, as a treat?", "Orly?", MessageBoxButtons.YesNoCancel,
+                    MessageBoxIcon.Question))
+                {
+                    case DialogResult.Yes:
+                        Process.Start("https://i.imgur.com/EJ31bmk.jpg");
+                        break;
+                    case DialogResult.No:
+                        Process.Start(
+                            "https://pics.me.me/white-people-cant-handle-spicy-food-um-try-again-sweetie-6626438.png");
+                        break;
+                    case DialogResult.Cancel:
+                        break;
+                }
+            }
+        }
+    }
+}

Program.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Windows.Forms;
+
+namespace FrappeMocha
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new MainForm());
+        }
+    }
+}

Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("FrappeMocha")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("HP Inc.")]
+[assembly: AssemblyProduct("FrappeMocha")]
+[assembly: AssemblyCopyright("Copyright © HP Inc. 2020")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("04ab5523-e679-4628-8b8b-b928a5da5107")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Properties/Resources.Designer.cs

@@ -0,0 +1,73 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace FrappeMocha.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources() {
+        }
+        
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("FrappeMocha.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized resource of type System.Drawing.Icon similar to (Icon).
+        /// </summary>
+        internal static System.Drawing.Icon logo {
+            get {
+                object obj = ResourceManager.GetObject("logo", resourceCulture);
+                return ((System.Drawing.Icon)(obj));
+            }
+        }
+    }
+}

Properties/Resources.resx

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="logo" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\logo.ico;System.Drawing.Icon, System.Drawing, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+</root>

Properties/Settings.Designer.cs

@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace FrappeMocha.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}

Properties/Settings.settings

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

README.md

@@ -0,0 +1,12 @@
+# FrappeMocha
+Generates keys for an aptly named 3270 terminal emulator
+
+### Note
+This is mostly for educational purposes only
+Documentation is non-existant
+
+I just /really/ enjoy taking things apart and trying to put them back together
+
+If this helps someone, sweet!
+
+Keep on hacking