| public abstract GetLicense ( System.ComponentModel.LicenseContext context, Type type, object? instance, bool allowExceptions ) : License? | ||
| context | System.ComponentModel.LicenseContext | |
| type | Type | |
| instance | object? | |
| allowExceptions | bool | |
| return | License? | |
// Perform license validation for a type.
private static License PerformValidation(Type type, Object instance)
{
LicenseProvider provider = GetProvider(type);
return(provider.GetLicense
(CurrentContext, type, instance, false));
}
private static bool privateGetLicense(Type type, object instance, bool allowExceptions, out License license)
{
bool result = false;
License license2 = null;
LicenseProviderAttribute licenseProviderAttribute = (LicenseProviderAttribute)Attribute.GetCustomAttribute(type, typeof(LicenseProviderAttribute), true);
if (licenseProviderAttribute != null)
{
Type licenseProvider = licenseProviderAttribute.LicenseProvider;
if (licenseProvider != null)
{
LicenseProvider licenseProvider2 = (LicenseProvider)Activator.CreateInstance(licenseProvider);
if (licenseProvider2 != null)
{
license2 = licenseProvider2.GetLicense(LicenseManager.CurrentContext, type, instance, allowExceptions);
if (license2 != null)
{
result = true;
}
}
}
}
else
{
result = true;
}
license = license2;
return(result);
}
private static bool ValidateInternalRecursive(LicenseContext context, Type type, object instance, bool allowExceptions, out License license, out string licenseKey)
{
LicenseProvider cachedProvider = GetCachedProvider(type);
if ((cachedProvider == null) && !GetCachedNoLicenseProvider(type))
{
LicenseProviderAttribute attribute = (LicenseProviderAttribute)Attribute.GetCustomAttribute(type, typeof(LicenseProviderAttribute), false);
if (attribute != null)
{
Type licenseProvider = attribute.LicenseProvider;
cachedProvider = GetCachedProviderInstance(licenseProvider);
if (cachedProvider == null)
{
cachedProvider = (LicenseProvider)SecurityUtils.SecureCreateInstance(licenseProvider);
}
}
CacheProvider(type, cachedProvider);
}
license = null;
bool flag = true;
licenseKey = null;
if (cachedProvider != null)
{
license = cachedProvider.GetLicense(context, type, instance, allowExceptions);
if (license == null)
{
flag = false;
}
else
{
licenseKey = license.LicenseKey;
}
}
if (flag && (instance == null))
{
string str;
Type baseType = type.BaseType;
if (!(baseType != typeof(object)) || (baseType == null))
{
return(flag);
}
if (license != null)
{
license.Dispose();
license = null;
}
flag = ValidateInternalRecursive(context, baseType, null, allowExceptions, out license, out str);
if (license != null)
{
license.Dispose();
license = null;
}
}
return(flag);
}
/// <include file='doc\LicenseManager.uex' path='docs/doc[@for="LicenseManager.ValidateInternalRecursive"]/*' />
/// <devdoc>
/// Since we want to walk up the entire inheritance change, when not
/// give an instance, we need another helper method to walk up
/// the chain...
/// </devdoc>
private static bool ValidateInternalRecursive(LicenseContext context, Type type, object instance, bool allowExceptions, out License license, out string licenseKey)
{
LicenseProvider provider = GetCachedProvider(type);
if (provider == null && !GetCachedNoLicenseProvider(type))
{
// NOTE : Must look directly at the class, we want no inheritance.
//
LicenseProviderAttribute attr = (LicenseProviderAttribute)Attribute.GetCustomAttribute(type, typeof(LicenseProviderAttribute), false);
if (attr != null)
{
Type providerType = attr.LicenseProvider;
provider = GetCachedProviderInstance(providerType);
if (provider == null)
{
provider = (LicenseProvider)SecurityUtils.SecureCreateInstance(providerType);
}
}
CacheProvider(type, provider);
}
license = null;
bool isValid = true;
licenseKey = null;
if (provider != null)
{
license = provider.GetLicense(context, type, instance, allowExceptions);
if (license == null)
{
isValid = false;
}
else
{
// For the case where a COM client is calling "RequestLicKey",
// we try to squirrel away the first found license key
//
licenseKey = license.LicenseKey;
}
}
// When looking only at a type, we need to recurse up the inheritence
// chain, however, we can't give out the license, since this may be
// from more than one provider.
//
if (isValid && instance == null)
{
Type baseType = type.BaseType;
if (baseType != typeof(object) && baseType != null)
{
if (license != null)
{
license.Dispose();
license = null;
}
string temp;
isValid = ValidateInternalRecursive(context, baseType, null, allowExceptions, out license, out temp);
if (license != null)
{
license.Dispose();
license = null;
}
}
}
return(isValid);
}
