/// <summary>
/// Constructor.
/// </summary>
public SqlAuthenticationProviderManager(SqlAuthenticationProviderConfigurationSection configSection)
{
_typeName = GetType().Name;
_providers = new ConcurrentDictionary <SqlAuthenticationMethod, SqlAuthenticationProvider>();
var authenticationsWithAppSpecifiedProvider = new HashSet <SqlAuthenticationMethod>();
_authenticationsWithAppSpecifiedProvider = authenticationsWithAppSpecifiedProvider;
if (configSection == null)
{
return;
}
// Create user-defined auth initializer, if any.
//
if (!string.IsNullOrEmpty(configSection.InitializerType))
{
try
{
var initializerType = Type.GetType(configSection.InitializerType, true);
_initializer = (SqlAuthenticationInitializer)Activator.CreateInstance(initializerType);
_initializer.Initialize();
}
catch (Exception e)
{
throw SQL.CannotCreateSqlAuthInitializer(configSection.InitializerType, e);
}
}
// add user-defined providers, if any.
//
if (configSection.Providers != null && configSection.Providers.Count > 0)
{
foreach (ProviderSettings providerSettings in configSection.Providers)
{
SqlAuthenticationMethod authentication = AuthenticationEnumFromString(providerSettings.Name);
SqlAuthenticationProvider provider;
try
{
var providerType = Type.GetType(providerSettings.Type, true);
provider = (SqlAuthenticationProvider)Activator.CreateInstance(providerType);
}
catch (Exception e)
{
throw SQL.CannotCreateAuthProvider(authentication.ToString(), providerSettings.Type, e);
}
if (!provider.IsSupported(authentication))
{
throw SQL.UnsupportedAuthenticationByProvider(authentication.ToString(), providerSettings.Type);
}
_providers[authentication] = provider;
authenticationsWithAppSpecifiedProvider.Add(authentication);
}
}
}
/// <summary>
/// Set an authentication provider by method.
/// </summary>
/// <param name="authenticationMethod">Authentication method.</param>
/// <param name="provider">Authentication provider.</param>
/// <returns>True if succeeded, false otherwise, e.g., the existing provider disallows overriding.</returns>
public bool SetProvider(SqlAuthenticationMethod authenticationMethod, SqlAuthenticationProvider provider)
{
if (!provider.IsSupported(authenticationMethod))
{
throw SQL.UnsupportedAuthenticationByProvider(authenticationMethod.ToString(), provider.GetType().Name);
}
var methodName = "SetProvider";
if (_authenticationsWithAppSpecifiedProvider.Contains(authenticationMethod))
{
_sqlAuthLogger.LogError(_typeName, methodName, $"Failed to add provider {GetProviderType(provider)} because a user-defined provider with type {GetProviderType(_providers[authenticationMethod])} already existed for authentication {authenticationMethod}.");
return(false);
}
_providers.AddOrUpdate(authenticationMethod, provider, (key, oldProvider) => {
if (oldProvider != null)
{
oldProvider.BeforeUnload(authenticationMethod);
}
if (provider != null)
{
provider.BeforeLoad(authenticationMethod);
}
_sqlAuthLogger.LogInfo(_typeName, methodName, $"Added auth provider {GetProviderType(provider)}, overriding existed provider {GetProviderType(oldProvider)} for authentication {authenticationMethod}.");
return(provider);
});
return(true);
}
/// <summary>
/// Set an authentication provider by method.
/// </summary>
/// <param name="authenticationMethod">Authentication method.</param>
/// <param name="provider">Authentication provider.</param>
/// <returns>True if succeeded, false otherwise, e.g., the existing provider disallows overriding.</returns>
public bool SetProvider(SqlAuthenticationMethod authenticationMethod, SqlAuthenticationProvider provider)
{
if (!provider.IsSupported(authenticationMethod))
{
throw SQL.UnsupportedAuthenticationByProvider(authenticationMethod.ToString(), provider.GetType().Name);
}
if (_authenticationsWithAppSpecifiedProvider.Contains(authenticationMethod))
{
}
_providers.AddOrUpdate(authenticationMethod, provider, (key, oldProvider) => {
if (oldProvider != null)
{
oldProvider.BeforeUnload(authenticationMethod);
}
if (provider != null)
{
provider.BeforeLoad(authenticationMethod);
}
return(provider);
});
return(true);
}
/// <summary>
/// Constructor.
/// </summary>
public SqlAuthenticationProviderManager(SqlAuthenticationProviderConfigurationSection configSection = null)
{
var methodName = "Ctor";
_typeName = GetType().Name;
_providers = new ConcurrentDictionary <SqlAuthenticationMethod, SqlAuthenticationProvider>();
var authenticationsWithAppSpecifiedProvider = new HashSet <SqlAuthenticationMethod>();
_authenticationsWithAppSpecifiedProvider = authenticationsWithAppSpecifiedProvider;
if (configSection == null)
{
_sqlAuthLogger.LogInfo(_typeName, methodName, "Neither SqlClientAuthenticationProviders nor SqlAuthenticationProviders configuration section found.");
return;
}
if (!string.IsNullOrEmpty(configSection.ApplicationClientId))
{
_applicationClientId = configSection.ApplicationClientId;
_sqlAuthLogger.LogInfo(_typeName, methodName, "Received user-defined Application Client Id");
}
else
{
_sqlAuthLogger.LogInfo(_typeName, methodName, "No user-defined Application Client Id found.");
}
// Create user-defined auth initializer, if any.
if (!string.IsNullOrEmpty(configSection.InitializerType))
{
try
{
var initializerType = Type.GetType(configSection.InitializerType, true);
_initializer = (SqlAuthenticationInitializer)Activator.CreateInstance(initializerType);
_initializer.Initialize();
}
catch (Exception e)
{
throw SQL.CannotCreateSqlAuthInitializer(configSection.InitializerType, e);
}
_sqlAuthLogger.LogInfo(_typeName, methodName, "Created user-defined SqlAuthenticationInitializer.");
}
else
{
_sqlAuthLogger.LogInfo(_typeName, methodName, "No user-defined SqlAuthenticationInitializer found.");
}
// add user-defined providers, if any.
if (configSection.Providers != null && configSection.Providers.Count > 0)
{
foreach (ProviderSettings providerSettings in configSection.Providers)
{
SqlAuthenticationMethod authentication = AuthenticationEnumFromString(providerSettings.Name);
SqlAuthenticationProvider provider;
try
{
var providerType = Type.GetType(providerSettings.Type, true);
provider = (SqlAuthenticationProvider)Activator.CreateInstance(providerType);
}
catch (Exception e)
{
throw SQL.CannotCreateAuthProvider(authentication.ToString(), providerSettings.Type, e);
}
if (!provider.IsSupported(authentication))
{
throw SQL.UnsupportedAuthenticationByProvider(authentication.ToString(), providerSettings.Type);
}
_providers[authentication] = provider;
authenticationsWithAppSpecifiedProvider.Add(authentication);
_sqlAuthLogger.LogInfo(_typeName, methodName, string.Format("Added user-defined auth provider: {0} for authentication {1}.", providerSettings?.Type, authentication));
}
}
else
{
_sqlAuthLogger.LogInfo(_typeName, methodName, "No user-defined auth providers.");
}
}
