DotNet 4.8.1 build of DotNetBar
This commit is contained in:
221
PROMS/DotNetBar Source Code/DevCoLicenseProvider.cs
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221
PROMS/DotNetBar Source Code/DevCoLicenseProvider.cs
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using System;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.Security.Cryptography;
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using System.Windows.Forms;
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namespace DevComponents.DotNetBar
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{
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[System.ComponentModel.ToolboxItem(false),System.ComponentModel.DesignTimeVisible(false)]
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public class DevCoLicenseProvider:LicenseProvider
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{
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const string DOTNETBAR="dotnetbar";
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public DevCoLicenseProvider()
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{
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}
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public override License GetLicense(LicenseContext context,Type type,object instance,bool allowExceptions)
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{
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DevCoLicense lic = null;
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Debug.Assert(context!=null, "No context provided!");
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#if !TRIAL
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//if no context is provided, do nothing
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if (context != null)
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{
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//if this control is in runtime mode
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if (context.UsageMode == LicenseUsageMode.Runtime)
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{
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//retreive the stored license key
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string key = context.GetSavedLicenseKey(type, null);
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//check if the stored license key is null
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// and call IsKeyValid to make sure its valid
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if (key != null && IsKeyValid2(key, type))
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{
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//if the key is valid create a new license
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lic = new DevCoLicense(key);
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}
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else
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{
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try
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{
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System.Reflection.Assembly[] assemblies=System.AppDomain.CurrentDomain.GetAssemblies();
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foreach(System.Reflection.Assembly a in assemblies)
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{
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string codeBase = a.CodeBase;
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codeBase = codeBase.Substring(codeBase.LastIndexOf("/") + 1)+".licenses";
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System.IO.Stream stream=this.GetManifestResourceStream(a,codeBase);
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if(stream==null)
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codeBase=codeBase.Replace(".DLL.",".dll.");
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stream=this.GetManifestResourceStream(a,codeBase);
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if(stream!=null)
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{
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key=DeserializeLicenseKey(stream);
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if (key != null && key!="") //IsKeyValid2(key, type))
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{
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lic = new DevCoLicense(key);
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break;
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}
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}
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}
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}
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catch
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{
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lic=new DevCoLicense("");
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}
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}
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}
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else
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{
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string sKey="";
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Microsoft.Win32.RegistryKey regkey=Microsoft.Win32.Registry.LocalMachine;
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regkey=regkey.OpenSubKey("Software\\DevComponents\\Licenses",false);
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if(regkey!=null)
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{
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sKey=regkey.GetValue("DevComponents.DotNetBar.DotNetBarManager2").ToString();
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}
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//check if the key is valid
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if (IsKeyValid(sKey, type))
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{
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//valid key so create a new License
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lic = new DevCoLicense(Key(type));
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}
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//if we managed to create a license, stuff it into the context
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if (lic != null)
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{
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context.SetSavedLicenseKey(type, lic.LicenseKey);
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}
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}
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}
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#else
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if (context != null)
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{
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lic=new DevCoLicense("");
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//if this control is in runtime mode
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if (context.UsageMode == LicenseUsageMode.Runtime)
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{
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RemindForm frm=new RemindForm();
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frm.ShowDialog();
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}
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else
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{
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context.SetSavedLicenseKey(type, lic.LicenseKey);
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}
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}
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#endif
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if(lic==null && context!=null)
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{
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RemindForm frm=new RemindForm();
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frm.ShowDialog();
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lic=new DevCoLicense("");
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}
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return lic;
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}
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private System.IO.Stream GetManifestResourceStream(System.Reflection.Assembly a, string resourceName)
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{
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resourceName=resourceName.ToLower();
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string[] resources=a.GetManifestResourceNames();
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foreach(string name in resources)
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{
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if(name.ToLower()==resourceName)
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{
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return a.GetManifestResourceStream(name);
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//break;
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}
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}
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return null;
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}
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private string DeserializeLicenseKey(System.IO.Stream o)
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{
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System.Runtime.Serialization.IFormatter formatter1;
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object obj1=null;
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object[] array1;
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formatter1 = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
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try
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{
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obj1 = formatter1.Deserialize(o);
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if((obj1 as object[]) == null)
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return null;
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array1 = ((object[]) obj1);
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if((array1[0] as string) == null)
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return null;
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System.Collections.Hashtable h=((System.Collections.Hashtable)array1[1]);
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//Type t=typeof(DotNetBarManager);
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string s=DOTNETBAR;
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foreach(System.Collections.DictionaryEntry entry in h)
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{
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string key=entry.Key.ToString().ToLower();
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if(key.IndexOf(s)>=0)
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return entry.Value as string;
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}
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}
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catch{}
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return null;
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}
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#if !TRIAL
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private bool IsKeyValid2(string key, Type type)
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{
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if(key==null || key=="")
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return false;
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return (Key(type)==key);
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}
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internal static string Key(Type type)
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{
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Byte[] bi=(new System.Text.UnicodeEncoding()).GetBytes(type.ToString());
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byte[] res;
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SHA256 shaM = new SHA256Managed();
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res = shaM.ComputeHash(bi);
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System.Text.StringBuilder sb=new System.Text.StringBuilder();
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System.IO.StringWriter sw=new System.IO.StringWriter(sb);
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System.Xml.XmlTextWriter xt=new System.Xml.XmlTextWriter(sw);
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xt.WriteBase64(res,0,(int)res.Length);
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xt.Close();
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return sb.ToString();
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}
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private bool IsKeyValid(string key, Type type)
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{
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if(key==null || key=="")
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return false;
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// Byte[] bi=(new System.Text.UnicodeEncoding()).GetBytes(type.ToString()+System.Windows.Forms.SystemInformation.ComputerName);
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// byte[] res;
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// SHA256 shaM = new SHA256Managed();
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// res = shaM.ComputeHash(bi);
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//
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// System.Text.StringBuilder sb=new System.Text.StringBuilder();
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// System.IO.StringWriter sw=new System.IO.StringWriter(sb);
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// System.Xml.XmlTextWriter xt=new System.Xml.XmlTextWriter(sw);
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// xt.WriteBase64(res,0,(int)res.Length);
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// xt.Close();
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return ("F962CEC7-CD8F-4911-A9E9-CAB39962FC1F"==key);
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}
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#endif
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}
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internal class DevCoLicense:License
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{
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private string key;
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public DevCoLicense(string key)
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{
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this.key = key;
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}
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public override string LicenseKey
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{
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get
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{
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return key;
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}
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}
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public override void Dispose()
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{
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}
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}
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}
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