public void SetLicense(Type type, LicFileLicense license)
{
SetSavedLicenseKey(type, license.LicenseKey);
licenses[type] = license;
}
//protected abstract string LicenseName
//{
// get;
//}
public override License GetLicense(LicenseContext c, Type type, object instance, bool allowExceptions)
{
ALinqLicenseContext context;
if (c is ALinqLicenseContext)
{
context = (ALinqLicenseContext)c;
}
else
{
context = new ALinqLicenseContext();
}
LicenseManager.CurrentContext = context;
LicFileLicense license = context.GetSavedLicense(type);
if (license == null)
{
#region Read license from Attribute
if (instance is DataContext)
{
var attributes = instance.GetType().GetCustomAttributes(true)
.Where(o => o is LicenseAttribute).Cast <LicenseAttribute>();
var count = attributes.Count();
if (count == 1)
{
var attribute = attributes.Single();
license = new LicFileLicense(this, attribute.UserName, attribute.Key, null);
}
}
#endregion
#region Read license from alinq.lic
if (license == null)
{
Assembly assembly = null;
if (instance is DataContext && instance.GetType() != typeof(DataContext))
{
assembly = instance.GetType().Assembly;
}
Assembly licenseFileAssembly;
var stream = SearchLicenseStream(assembly, out licenseFileAssembly);
if (stream != null)
{
string userName;
string key;
string assemblyName;
CultureInfo culture;
ParseLicense(type, instance, stream, out userName, out key, out assemblyName, out culture);
stream.Dispose();
//==============================================================================
// 说明：key 允许为空，当为 Free 版本时
// if (key == null)
// throw Error.LicenseFail(type, instance, string.Format("The {0} license key could not found in the ALinq.lic file.", type));
//==============================================================================
if (assemblyName != licenseFileAssembly.GetName().Name)
{
throw Error.AssemblyNameNotMatch(type, instance, assemblyName, licenseFileAssembly.GetName().Name);
}
license = new LicFileLicense(this, userName, key, culture);
}
}
#endregion
#region Read license from registry.
//if (license == null)
//{
// var platform = Environment.OSVersion.Platform;
// if (platform == PlatformID.Win32NT || platform == PlatformID.Win32S ||
// platform == PlatformID.Win32Windows || platform == PlatformID.Win32Windows)
// {
// try
// {
// var regALinq = Registry.ClassesRoot.OpenSubKey("SOFTWARE\\ALinq", true);
// if (regALinq != null)
// {
// var obj = regALinq.GetValue("PreLoad");
// if (obj == null)
// {
// obj = DateTime.Now.ToString("yyyy-MM-dd");
// var bs = Encoding.ASCII.GetBytes((string)obj);
// obj = Convert.ToBase64String(bs);
// regALinq.SetValue("PreLoad", obj);
// }
// var preLoad = (string)obj;
// var bytes = Convert.FromBase64String(preLoad);
// var strDate = Encoding.ASCII.GetString(bytes);
// var date = DateTime.Parse(strDate);
// if (date > DateTime.Now)
// throw Error.LicenseFail(type, instance, "This software is expired.");
// else
// {
// var data = Encoding.ASCII.GetBytes(DateTime.Now.ToString());
// var str = Convert.ToBase64String(data);
// regALinq.SetValue("PreLoad", str);
// }
// obj = regALinq.GetValue("Date");
// if (obj == null)
// {
// obj = DateTime.Now.ToString("yyyy-MM-dd");
// var bs = Encoding.ASCII.GetBytes((string)obj);
// obj = Convert.ToBase64String(bs);
// regALinq.SetValue("Date", obj);
// }
// var encryptDate = (string)obj;
// bytes = Convert.FromBase64String(encryptDate);
// strDate = Encoding.ASCII.GetString(bytes);
// date = DateTime.Parse(strDate);
// var days = DAYS - (DateTime.Now - date).Days;
// license = new LicFileLicense(this, Constants.TrialUserName, date.ToString(), null) { ExpiredDays = days };
// }
// }
// catch (Exception exc)
// {
// if (exc is LicenseException)
// throw;
// }
// }
//}
#endregion
if (license != null)
{
//licenses[type] = license;
context.SetLicense(type, license);//.SetSavedLicenseKey(type, license.LicenseKey);
}
}
if (license == null)
{
throw new LicenseException(type, instance, string.Format("Found license fail!"));
}
//验证授权
ValidateLicense(type, instance, license);
return(license);
}