Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Security / WSSecureConversation.cs / 1 / WSSecureConversation.cs
//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel.Security
{
using HexBinary = System.Runtime.Remoting.Metadata.W3cXsd2001.SoapHexBinary;
using System;
using System.ServiceModel;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Text;
using System.Threading;
using System.Xml;
using System.IdentityModel.Claims;
using System.IdentityModel.Policy;
using System.IdentityModel.Selectors;
using System.IdentityModel.Tokens;
using System.Security.Cryptography.X509Certificates;
using System.ServiceModel.Security.Tokens;
using System.ServiceModel.Channels;
using System.ServiceModel.Security;
using System.Runtime.Serialization;
using KeyIdentifierEntry = WSSecurityTokenSerializer.KeyIdentifierEntry;
using KeyIdentifierClauseEntry = WSSecurityTokenSerializer.KeyIdentifierClauseEntry;
using StrEntry = WSSecurityTokenSerializer.StrEntry;
using TokenEntry = WSSecurityTokenSerializer.TokenEntry;
abstract class WSSecureConversation : WSSecurityTokenSerializer.SerializerEntries
{
WSSecurityTokenSerializer tokenSerializer;
DerivedKeyTokenEntry derivedKeyEntry;
protected WSSecureConversation(WSSecurityTokenSerializer tokenSerializer, int maxKeyDerivationOffset, int maxKeyDerivationLabelLength, int maxKeyDerivationNonceLength)
{
if (tokenSerializer == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("tokenSerializer");
}
this.tokenSerializer = tokenSerializer;
this.derivedKeyEntry = new DerivedKeyTokenEntry(this, maxKeyDerivationOffset, maxKeyDerivationLabelLength, maxKeyDerivationNonceLength);
}
public abstract SecureConversationDictionary SerializerDictionary
{
get;
}
public WSSecurityTokenSerializer WSSecurityTokenSerializer
{
get { return this.tokenSerializer; }
}
public override void PopulateTokenEntries(IList tokenEntryList)
{
if (tokenEntryList == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("tokenEntryList");
}
tokenEntryList.Add(this.derivedKeyEntry);
}
public virtual bool IsAtDerivedKeyToken(XmlDictionaryReader reader)
{
return this.derivedKeyEntry.CanReadTokenCore(reader);
}
public virtual void ReadDerivedKeyTokenParameters(XmlDictionaryReader reader, SecurityTokenResolver tokenResolver, out string id, out string derivationAlgorithm, out string label, out int length, out byte[] nonce, out int offset, out int generation, out SecurityKeyIdentifierClause tokenToDeriveIdentifier, out SecurityToken tokenToDerive)
{
this.derivedKeyEntry.ReadDerivedKeyTokenParameters(reader, tokenResolver, out id, out derivationAlgorithm, out label,
out length, out nonce, out offset, out generation, out tokenToDeriveIdentifier, out tokenToDerive);
}
public virtual SecurityToken CreateDerivedKeyToken(string id, string derivationAlgorithm, string label, int length, byte[] nonce, int offset, int generation, SecurityKeyIdentifierClause tokenToDeriveIdentifier, SecurityToken tokenToDerive)
{
return this.derivedKeyEntry.CreateDerivedKeyToken(id, derivationAlgorithm, label, length, nonce, offset, generation,
tokenToDeriveIdentifier, tokenToDerive);
}
public virtual string DerivationAlgorithm
{
get { return SecurityAlgorithms.Psha1KeyDerivation; }
}
protected class DerivedKeyTokenEntry : WSSecurityTokenSerializer.TokenEntry
{
public const string DefaultLabel = "WS-SecureConversation";
WSSecureConversation parent;
int maxKeyDerivationOffset;
int maxKeyDerivationLabelLength;
int maxKeyDerivationNonceLength;
public DerivedKeyTokenEntry(WSSecureConversation parent, int maxKeyDerivationOffset, int maxKeyDerivationLabelLength, int maxKeyDerivationNonceLength)
{
if (parent == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("parent");
}
this.parent = parent;
this.maxKeyDerivationOffset = maxKeyDerivationOffset;
this.maxKeyDerivationLabelLength = maxKeyDerivationLabelLength;
this.maxKeyDerivationNonceLength = maxKeyDerivationNonceLength;
}
protected override XmlDictionaryString LocalName { get { return parent.SerializerDictionary.DerivedKeyToken; } }
protected override XmlDictionaryString NamespaceUri { get { return parent.SerializerDictionary.Namespace; } }
protected override Type[] GetTokenTypesCore() { return new Type[] { typeof(DerivedKeySecurityToken) }; }
public override string TokenTypeUri { get { return parent.SerializerDictionary.DerivedKeyTokenType.Value; } }
protected override string ValueTypeUri { get { return null; } }
public override SecurityKeyIdentifierClause CreateKeyIdentifierClauseFromTokenXmlCore(XmlElement issuedTokenXml,
SecurityTokenReferenceStyle tokenReferenceStyle)
{
TokenReferenceStyleHelper.Validate(tokenReferenceStyle);
switch (tokenReferenceStyle)
{
case SecurityTokenReferenceStyle.Internal:
return CreateDirectReference(issuedTokenXml, UtilityStrings.IdAttribute, UtilityStrings.Namespace, typeof(DerivedKeySecurityToken));
case SecurityTokenReferenceStyle.External:
// DerivedKeys aren't referred to externally
return null;
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("tokenReferenceStyle"));
}
}
// xml format
// id required, alg optional (curr disallowed)
// ... - required
// ... - disallowed (optional in spec, but we disallow it)
// choice begin - (schema requires a choice - we allow neither on read - we always write one)
// ... - optional
// ... - optional
// choice end
// ... - optional - default 32 on read (default specified in spec, not in schema - we always write it)
// - optional
// ... - required (optional in spec, but we require it)
//
public virtual void ReadDerivedKeyTokenParameters(XmlDictionaryReader reader, SecurityTokenResolver tokenResolver, out string id, out string derivationAlgorithm, out string label, out int length, out byte[] nonce, out int offset, out int generation, out SecurityKeyIdentifierClause tokenToDeriveIdentifier, out SecurityToken tokenToDerive)
{
if (tokenResolver == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("tokenResolver");
}
id = reader.GetAttribute(XD.UtilityDictionary.IdAttribute, XD.UtilityDictionary.Namespace);
derivationAlgorithm = reader.GetAttribute(XD.XmlSignatureDictionary.Algorithm, null);
if (derivationAlgorithm == null)
{
derivationAlgorithm = parent.DerivationAlgorithm;
}
reader.ReadStartElement();
tokenToDeriveIdentifier = null;
tokenToDerive = null;
if (reader.IsStartElement(XD.SecurityJan2004Dictionary.SecurityTokenReference, XD.SecurityJan2004Dictionary.Namespace))
{
tokenToDeriveIdentifier = parent.WSSecurityTokenSerializer.ReadKeyIdentifierClause(reader);
tokenToDerive = tokenResolver.ResolveToken(tokenToDeriveIdentifier);
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.DerivedKeyTokenRequiresTokenReference)));
}
// no support for properties
generation = -1;
if (reader.IsStartElement(parent.SerializerDictionary.Generation, parent.SerializerDictionary.Namespace))
{
reader.ReadStartElement();
generation = reader.ReadContentAsInt();
reader.ReadEndElement();
if (generation < 0)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.DerivedKeyInvalidGenerationSpecified, generation)));
}
offset = -1;
if (reader.IsStartElement(parent.SerializerDictionary.Offset, parent.SerializerDictionary.Namespace))
{
reader.ReadStartElement();
offset = reader.ReadContentAsInt();
reader.ReadEndElement();
if (offset < 0)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(SR.GetString(SR.DerivedKeyInvalidOffsetSpecified, offset)));
}
length = DerivedKeySecurityToken.DefaultDerivedKeyLength;
if (reader.IsStartElement(parent.SerializerDictionary.Length, parent.SerializerDictionary.Namespace))
{
reader.ReadStartElement();
length = reader.ReadContentAsInt();
reader.ReadEndElement();
}
if ((offset == -1) && (generation == -1))
offset = 0;
// verify that the offset is not larger than the max allowed
DerivedKeySecurityToken.EnsureAcceptableOffset(offset, generation, length, this.maxKeyDerivationOffset);
label = null;
if (reader.IsStartElement(parent.SerializerDictionary.Label, parent.SerializerDictionary.Namespace))
{
reader.ReadStartElement();
label = reader.ReadString();
reader.ReadEndElement();
}
if (label != null && label.Length > this.maxKeyDerivationLabelLength)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperWarning(new MessageSecurityException(SR.GetString(SR.DerivedKeyTokenLabelTooLong, label.Length, this.maxKeyDerivationLabelLength)));
}
nonce = null;
reader.ReadStartElement(parent.SerializerDictionary.Nonce, parent.SerializerDictionary.Namespace);
nonce = reader.ReadContentAsBase64();
reader.ReadEndElement();
if (nonce != null && nonce.Length > this.maxKeyDerivationNonceLength)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperWarning(new MessageSecurityException(SR.GetString(SR.DerivedKeyTokenNonceTooLong, nonce.Length, this.maxKeyDerivationNonceLength)));
}
reader.ReadEndElement();
}
public virtual SecurityToken CreateDerivedKeyToken(string id, string derivationAlgorithm, string label, int length, byte[] nonce, int offset, int generation, SecurityKeyIdentifierClause tokenToDeriveIdentifier, SecurityToken tokenToDerive)
{
if (tokenToDerive == null)
{
return new DerivedKeySecurityTokenStub(generation, offset, length,
label, nonce, tokenToDeriveIdentifier, derivationAlgorithm, id);
}
else
{
return new DerivedKeySecurityToken(generation, offset, length,
label, nonce, tokenToDerive, tokenToDeriveIdentifier, derivationAlgorithm, id);
}
}
public override SecurityToken ReadTokenCore(XmlDictionaryReader reader, SecurityTokenResolver tokenResolver)
{
string id;
string derivationAlgorithm;
string label;
int length;
byte[] nonce;
int offset;
int generation;
SecurityKeyIdentifierClause tokenToDeriveIdentifier;
SecurityToken tokenToDerive;
this.ReadDerivedKeyTokenParameters(reader, tokenResolver, out id, out derivationAlgorithm, out label, out length,
out nonce, out offset, out generation, out tokenToDeriveIdentifier, out tokenToDerive);
return CreateDerivedKeyToken(id, derivationAlgorithm, label, length, nonce, offset, generation,
tokenToDeriveIdentifier, tokenToDerive);
}
public override void WriteTokenCore(XmlDictionaryWriter writer, SecurityToken token)
{
DerivedKeySecurityToken derivedKeyToken = token as DerivedKeySecurityToken;
string serializerPrefix = parent.SerializerDictionary.Prefix.Value;
writer.WriteStartElement(serializerPrefix, parent.SerializerDictionary.DerivedKeyToken, parent.SerializerDictionary.Namespace);
if (derivedKeyToken.Id != null)
{
writer.WriteAttributeString(XD.UtilityDictionary.Prefix.Value, XD.UtilityDictionary.IdAttribute, XD.UtilityDictionary.Namespace, derivedKeyToken.Id);
}
if (derivedKeyToken.KeyDerivationAlgorithm != parent.DerivationAlgorithm)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MessageSecurityException(SR.GetString(SR.UnsupportedKeyDerivationAlgorithm, derivedKeyToken.KeyDerivationAlgorithm)));
}
parent.WSSecurityTokenSerializer.WriteKeyIdentifierClause(writer, derivedKeyToken.TokenToDeriveIdentifier);
// Don't support Properties element
if (derivedKeyToken.Generation > 0 || derivedKeyToken.Offset > 0 || derivedKeyToken.Length != 32)
{
// this means they're both specified (offset must be gen * length) - we'll write generation
if (derivedKeyToken.Generation >= 0 && derivedKeyToken.Offset >= 0)
{
writer.WriteStartElement(serializerPrefix, parent.SerializerDictionary.Generation, parent.SerializerDictionary.Namespace);
writer.WriteValue(derivedKeyToken.Generation);
writer.WriteEndElement();
}
else if (derivedKeyToken.Generation != -1)
{
writer.WriteStartElement(serializerPrefix, parent.SerializerDictionary.Generation, parent.SerializerDictionary.Namespace);
writer.WriteValue(derivedKeyToken.Generation);
writer.WriteEndElement();
}
else if (derivedKeyToken.Offset != -1)
{
writer.WriteStartElement(serializerPrefix, parent.SerializerDictionary.Offset, parent.SerializerDictionary.Namespace);
writer.WriteValue(derivedKeyToken.Offset);
writer.WriteEndElement();
}
if (derivedKeyToken.Length != 32)
{
writer.WriteStartElement(serializerPrefix, parent.SerializerDictionary.Length, parent.SerializerDictionary.Namespace);
writer.WriteValue(derivedKeyToken.Length);
writer.WriteEndElement();
}
}
if (derivedKeyToken.Label != null)
{
writer.WriteStartElement(serializerPrefix, parent.SerializerDictionary.Generation, parent.SerializerDictionary.Namespace);
writer.WriteString(derivedKeyToken.Label);
writer.WriteEndElement();
}
writer.WriteStartElement(serializerPrefix, parent.SerializerDictionary.Nonce, parent.SerializerDictionary.Namespace);
writer.WriteBase64(derivedKeyToken.Nonce, 0, derivedKeyToken.Nonce.Length);
writer.WriteEndElement();
writer.WriteEndElement();
}
}
protected abstract class SecurityContextTokenEntry : WSSecurityTokenSerializer.TokenEntry
{
WSSecureConversation parent;
SecurityContextCookieSerializer cookieSerializer;
public SecurityContextTokenEntry(WSSecureConversation parent, SecurityStateEncoder securityStateEncoder, IList knownClaimTypes)
{
this.parent = parent;
this.cookieSerializer = new SecurityContextCookieSerializer(securityStateEncoder, knownClaimTypes);
}
protected WSSecureConversation Parent
{
get { return this.parent; }
}
protected override XmlDictionaryString LocalName { get { return parent.SerializerDictionary.SecurityContextToken; } }
protected override XmlDictionaryString NamespaceUri { get { return parent.SerializerDictionary.Namespace; } }
protected override Type[] GetTokenTypesCore() { return new Type[] { typeof(SecurityContextSecurityToken) }; }
public override string TokenTypeUri { get { return parent.SerializerDictionary.SecurityContextTokenType.Value; } }
protected override string ValueTypeUri { get { return null; } }
public override SecurityKeyIdentifierClause CreateKeyIdentifierClauseFromTokenXmlCore(XmlElement issuedTokenXml,
SecurityTokenReferenceStyle tokenReferenceStyle)
{
TokenReferenceStyleHelper.Validate(tokenReferenceStyle);
switch (tokenReferenceStyle)
{
case SecurityTokenReferenceStyle.Internal:
return CreateDirectReference(issuedTokenXml, UtilityStrings.IdAttribute, UtilityStrings.Namespace, typeof(SecurityContextSecurityToken));
case SecurityTokenReferenceStyle.External:
UniqueId contextId = null;
UniqueId generation = null;
foreach (XmlNode node in issuedTokenXml.ChildNodes)
{
XmlElement element = node as XmlElement;
if (element != null)
{
if (element.LocalName == parent.SerializerDictionary.Identifier.Value && element.NamespaceURI == parent.SerializerDictionary.Namespace.Value)
{
contextId = XmlHelper.ReadTextElementAsUniqueId(element);
}
else if (CanReadGeneration(element))
{
generation = ReadGeneration(element);
}
}
}
return new SecurityContextKeyIdentifierClause(contextId, generation);
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("tokenReferenceStyle"));
}
}
protected abstract bool CanReadGeneration(XmlDictionaryReader reader);
protected abstract bool CanReadGeneration(XmlElement element);
protected abstract UniqueId ReadGeneration(XmlDictionaryReader reader);
protected abstract UniqueId ReadGeneration(XmlElement element);
SecurityContextSecurityToken TryResolveSecurityContextToken(UniqueId contextId, UniqueId generation, string id, SecurityTokenResolver tokenResolver, out ISecurityContextSecurityTokenCache sctCache)
{
SecurityContextSecurityToken cachedSct = null;
sctCache = null;
if (tokenResolver is ISecurityContextSecurityTokenCache)
{
sctCache = ((ISecurityContextSecurityTokenCache)tokenResolver);
cachedSct = sctCache.GetContext(contextId, generation);
}
else if (tokenResolver is AggregateTokenResolver)
{
// We will see if we have a ISecurityContextSecurityTokenCache in the
// AggregateTokenResolver. We will hold the reference to the first sctCache
// we find.
AggregateTokenResolver aggregateTokenResolve = tokenResolver as AggregateTokenResolver;
for (int i = 0; i < aggregateTokenResolve.OutOfBandTokenResolver.Count; ++i)
{
ISecurityContextSecurityTokenCache oobTokenResolver = aggregateTokenResolve.OutOfBandTokenResolver[i] as ISecurityContextSecurityTokenCache;
if (oobTokenResolver == null)
{
continue;
}
if (sctCache == null)
{
sctCache = oobTokenResolver;
}
cachedSct = oobTokenResolver.GetContext(contextId, generation);
if (cachedSct != null)
{
break;
}
}
}
if (cachedSct == null)
{
return null;
}
else if (cachedSct.Id == id)
{
return cachedSct;
}
else
{
return new SecurityContextSecurityToken(cachedSct, id);
}
}
public override SecurityToken ReadTokenCore(XmlDictionaryReader reader, SecurityTokenResolver tokenResolver)
{
UniqueId contextId = null;
byte[] encodedCookie = null;
UniqueId generation = null;
bool isCookieMode = false;
DiagnosticUtility.DebugAssert(reader.NodeType == XmlNodeType.Element, "");
// check if there is an id
string id = reader.GetAttribute(XD.UtilityDictionary.IdAttribute, XD.UtilityDictionary.Namespace);
SecurityContextSecurityToken sct = null;
// There needs to be at least a contextId in here.
reader.ReadFullStartElement();
reader.MoveToStartElement(parent.SerializerDictionary.Identifier, parent.SerializerDictionary.Namespace);
contextId = reader.ReadElementContentAsUniqueId();
if (CanReadGeneration(reader))
{
generation = ReadGeneration(reader);
}
if (reader.IsStartElement(parent.SerializerDictionary.Cookie, XD.DotNetSecurityDictionary.Namespace))
{
isCookieMode = true;
ISecurityContextSecurityTokenCache sctCache;
sct = TryResolveSecurityContextToken(contextId, generation, id, tokenResolver, out sctCache);
if (sct == null)
{
encodedCookie = reader.ReadElementContentAsBase64();
if (encodedCookie != null)
{
sct = cookieSerializer.CreateSecurityContextFromCookie(encodedCookie, contextId, generation, id, reader.Quotas);
if (sctCache != null)
{
sctCache.AddContext(sct);
}
}
}
else
{
reader.Skip();
}
}
reader.ReadEndElement();
if (contextId == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MessageSecurityException(SR.GetString(SR.NoSecurityContextIdentifier)));
}
if (sct == null && !isCookieMode)
{
ISecurityContextSecurityTokenCache sctCache;
sct = TryResolveSecurityContextToken(contextId, generation, id, tokenResolver, out sctCache);
}
if (sct == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperWarning(new SecurityContextTokenValidationException(SR.GetString(SR.SecurityContextNotRegistered, contextId, generation)));
}
return sct;
}
protected virtual void WriteGeneration(XmlDictionaryWriter writer, SecurityContextSecurityToken sct)
{
}
public override void WriteTokenCore(XmlDictionaryWriter writer, SecurityToken token)
{
SecurityContextSecurityToken sct = (token as SecurityContextSecurityToken);
// serialize the name and any wsu:Id attribute
writer.WriteStartElement(parent.SerializerDictionary.Prefix.Value, parent.SerializerDictionary.SecurityContextToken, parent.SerializerDictionary.Namespace);
if (sct.Id != null)
{
writer.WriteAttributeString(XD.UtilityDictionary.Prefix.Value, XD.UtilityDictionary.IdAttribute, XD.UtilityDictionary.Namespace, sct.Id);
}
// serialize the context id
writer.WriteStartElement(parent.SerializerDictionary.Prefix.Value, parent.SerializerDictionary.Identifier, parent.SerializerDictionary.Namespace);
XmlHelper.WriteStringAsUniqueId(writer, sct.ContextId);
writer.WriteEndElement();
WriteGeneration(writer, sct);
// if cookie-mode, then it must have a cookie
if (sct.IsCookieMode)
{
if (sct.CookieBlob == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MessageSecurityException(SR.GetString(SR.NoCookieInSct)));
}
// if the token has a cookie, write it out
writer.WriteStartElement(XD.DotNetSecurityDictionary.Prefix.Value, parent.SerializerDictionary.Cookie, XD.DotNetSecurityDictionary.Namespace);
writer.WriteBase64(sct.CookieBlob, 0, sct.CookieBlob.Length);
writer.WriteEndElement();
}
writer.WriteEndElement();
}
}
protected abstract class SctStrEntry : StrEntry
{
WSSecureConversation parent;
public SctStrEntry(WSSecureConversation parent)
{
this.parent = parent;
}
protected WSSecureConversation Parent
{
get { return this.parent; }
}
public override Type GetTokenType(SecurityKeyIdentifierClause clause)
{
return typeof(SecurityContextSecurityToken);
}
public override bool CanReadClause(XmlDictionaryReader reader, string tokenType)
{
if (tokenType != null && tokenType != parent.SerializerDictionary.SecurityContextTokenType.Value)
{
return false;
}
if (reader.IsStartElement(XD.SecurityJan2004Dictionary.Reference, XD.SecurityJan2004Dictionary.Namespace))
{
string valueType = reader.GetAttribute(XD.SecurityJan2004Dictionary.ValueType, null);
if (valueType != null && valueType != parent.SerializerDictionary.SecurityContextTokenReferenceValueType.Value)
{
return false;
}
string uri = reader.GetAttribute(XD.SecurityJan2004Dictionary.URI, null);
if (uri != null)
{
if (uri.Length > 0 && uri[0] != '#')
{
return true;
}
}
}
return false;
}
public override SecurityKeyIdentifierClause ReadClause(XmlDictionaryReader reader, byte[] derivationNonce, int derivationLength, string tokenType)
{
UniqueId uri = XmlHelper.GetAttributeAsUniqueId(reader, XD.SecurityJan2004Dictionary.URI, null);
UniqueId generation = ReadGeneration(reader);
if (reader.IsEmptyElement)
{
reader.Read();
}
else
{
reader.ReadStartElement();
while (reader.IsStartElement())
{
reader.Skip();
}
reader.ReadEndElement();
}
return new SecurityContextKeyIdentifierClause(uri, generation, derivationNonce, derivationLength);
}
protected abstract UniqueId ReadGeneration(XmlDictionaryReader reader);
public override bool SupportsCore(SecurityKeyIdentifierClause clause)
{
return clause is SecurityContextKeyIdentifierClause;
}
public override void WriteContent(XmlDictionaryWriter writer, SecurityKeyIdentifierClause clause)
{
SecurityContextKeyIdentifierClause sctClause = clause as SecurityContextKeyIdentifierClause;
writer.WriteStartElement(XD.SecurityJan2004Dictionary.Prefix.Value, XD.SecurityJan2004Dictionary.Reference, XD.SecurityJan2004Dictionary.Namespace);
XmlHelper.WriteAttributeStringAsUniqueId(writer, null, XD.SecurityJan2004Dictionary.URI, null, sctClause.ContextId);
WriteGeneration(writer, sctClause);
writer.WriteAttributeString(XD.SecurityJan2004Dictionary.ValueType, null, parent.SerializerDictionary.SecurityContextTokenReferenceValueType.Value);
writer.WriteEndElement();
}
protected abstract void WriteGeneration(XmlDictionaryWriter writer, SecurityContextKeyIdentifierClause clause);
}
public abstract class Driver : SecureConversationDriver
{
public Driver()
{
}
protected abstract SecureConversationDictionary DriverDictionary
{
get;
}
public override XmlDictionaryString IssueAction
{
get
{
return DriverDictionary.RequestSecurityContextIssuance;
}
}
public override XmlDictionaryString IssueResponseAction
{
get
{
return DriverDictionary.RequestSecurityContextIssuanceResponse;
}
}
public override XmlDictionaryString RenewNeededFaultCode
{
get { return DriverDictionary.RenewNeededFaultCode; }
}
public override XmlDictionaryString BadContextTokenFaultCode
{
get { return DriverDictionary.BadContextTokenFaultCode; }
}
public override UniqueId GetSecurityContextTokenId(XmlDictionaryReader reader)
{
if (reader == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("reader");
reader.ReadStartElement(DriverDictionary.SecurityContextToken, DriverDictionary.Namespace);
UniqueId contextId = XmlHelper.ReadElementStringAsUniqueId(reader, DriverDictionary.Identifier, DriverDictionary.Namespace);
while (reader.IsStartElement())
{
reader.Skip();
}
reader.ReadEndElement();
return contextId;
}
public override bool IsAtSecurityContextToken(XmlDictionaryReader reader)
{
if (reader == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("reader");
return reader.IsStartElement(DriverDictionary.SecurityContextToken, DriverDictionary.Namespace);
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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