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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.IdentityModel.Selectors
{
using System.Globalization;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.IdentityModel.Tokens;
public class SecurityTokenRequirement
{
const string Namespace = "http://schemas.microsoft.com/ws/2006/05/identitymodel/securitytokenrequirement";
const string tokenTypeProperty = Namespace + "/TokenType";
const string keyUsageProperty = Namespace + "/KeyUsage";
const string keyTypeProperty = Namespace + "/KeyType";
const string keySizeProperty = Namespace + "/KeySize";
const string requireCryptographicTokenProperty = Namespace + "/RequireCryptographicToken";
const string peerAuthenticationMode = Namespace + "/PeerAuthenticationMode";
const string isOptionalTokenProperty = Namespace + "/IsOptionalTokenProperty";
const bool defaultRequireCryptographicToken = false;
const SecurityKeyUsage defaultKeyUsage = SecurityKeyUsage.Signature;
const SecurityKeyType defaultKeyType = SecurityKeyType.SymmetricKey;
const int defaultKeySize = 0;
const bool defaultIsOptionalToken = false;
Dictionary<string, object> properties;
public SecurityTokenRequirement()
{
properties = new Dictionary<string, object>();
this.Initialize();
}
static public string TokenTypeProperty { get { return tokenTypeProperty; } }
static public string KeyUsageProperty { get { return keyUsageProperty; } }
static public string KeyTypeProperty { get { return keyTypeProperty; } }
static public string KeySizeProperty { get { return keySizeProperty; } }
static public string RequireCryptographicTokenProperty { get { return requireCryptographicTokenProperty; } }
static public string PeerAuthenticationMode { get { return peerAuthenticationMode; } }
static public string IsOptionalTokenProperty { get { return isOptionalTokenProperty; } }
public string TokenType
{
get
{
string result;
return (this.TryGetProperty<string>(TokenTypeProperty, out result)) ? result : null;
}
set
{
this.properties[TokenTypeProperty] = value;
}
}
internal bool IsOptionalToken
{
get
{
bool result;
return (this.TryGetProperty<bool>(IsOptionalTokenProperty, out result)) ? result : defaultIsOptionalToken;
}
set
{
this.properties[IsOptionalTokenProperty] = value;
}
}
public bool RequireCryptographicToken
{
get
{
bool result;
return (this.TryGetProperty<bool>(RequireCryptographicTokenProperty, out result)) ? result : defaultRequireCryptographicToken;
}
set
{
this.properties[RequireCryptographicTokenProperty] = (object)value;
}
}
public SecurityKeyUsage KeyUsage
{
get
{
SecurityKeyUsage result;
return (this.TryGetProperty<SecurityKeyUsage>(KeyUsageProperty, out result)) ? result : defaultKeyUsage;
}
set
{
SecurityKeyUsageHelper.Validate(value);
this.properties[KeyUsageProperty] = (object)value;
}
}
public SecurityKeyType KeyType
{
get
{
SecurityKeyType result;
return (this.TryGetProperty<SecurityKeyType>(KeyTypeProperty, out result)) ? result : defaultKeyType;
}
set
{
SecurityKeyTypeHelper.Validate(value);
this.properties[KeyTypeProperty] = (object)value;
}
}
public int KeySize
{
get
{
int result;
return (this.TryGetProperty<int>(KeySizeProperty, out result)) ? result : defaultKeySize;
}
set
{
if (value < 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("value", SR.GetString(SR.ValueMustBeNonNegative)));
}
this.Properties[KeySizeProperty] = value;
}
}
public IDictionary<string, object> Properties
{
get
{
return this.properties;
}
}
void Initialize()
{
this.KeyType = defaultKeyType;
this.KeyUsage = defaultKeyUsage;
this.RequireCryptographicToken = defaultRequireCryptographicToken;
this.KeySize = defaultKeySize;
this.IsOptionalToken = defaultIsOptionalToken;
}
public TValue GetProperty<TValue>(string propertyName)
{
TValue result;
if (!TryGetProperty<TValue>(propertyName, out result))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.SecurityTokenRequirementDoesNotContainProperty, propertyName)));
}
return result;
}
public bool TryGetProperty<TValue>(string propertyName, out TValue result)
{
object dictionaryValue;
if (!Properties.TryGetValue(propertyName, out dictionaryValue))
{
result = default(TValue);
return false;
}
if (dictionaryValue != null && !typeof(TValue).IsAssignableFrom(dictionaryValue.GetType()))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.SecurityTokenRequirementHasInvalidTypeForProperty, propertyName, dictionaryValue.GetType(), typeof(TValue))));
}
result = (TValue)dictionaryValue;
return true;
}
}
}
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