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namespace System.IdentityModel.Diagnostics
{
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IdentityModel.Diagnostics;
using System.Diagnostics;
using System.Runtime.Diagnostics;
using System.Security.Authentication.ExtendedProtection;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.ServiceModel.Diagnostics;
using System.Xml;
using System.IdentityModel.Tokens;
using System.Security.Cryptography;
class SecurityTraceRecord : TraceRecord
{
String traceName;
internal SecurityTraceRecord(String traceName)
{
if (string.IsNullOrEmpty(traceName))
this.traceName = "Empty";
else
this.traceName = traceName;
}
internal override string EventId { get { return BuildEventId(traceName); } }
}
internal static class SecurityTraceRecordHelper
{
internal static void TraceServiceNameBindingOnServer(string serviceBindingNameSentByClient, string defaultServiceBindingNameOfServer, ServiceNameCollection serviceNameCollectionConfiguredOnServer)
{
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.ServiceBindingCheck, SR.GetString(SR.TraceCodeServiceBindingCheck), new ServiceBindingNameTraceRecord(serviceBindingNameSentByClient, defaultServiceBindingNameOfServer, serviceNameCollectionConfiguredOnServer), null, null);
}
internal static void TraceChannelBindingInformation(ExtendedProtectionPolicyHelper policyHelper, bool isServer, ChannelBinding channelBinding)
{
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.ChannelBindingCheck, SR.GetString(SR.TraceCodeChannelBindingCheck), new ChannelBindingNameTraceRecord(policyHelper, isServer, channelBinding), null, null);
}
class ServiceBindingNameTraceRecord : SecurityTraceRecord
{
string serviceBindingNameSentByClient;
string defaultServiceBindingNameOfServer;
ServiceNameCollection serviceNameCollectionConfiguredOnServer;
public ServiceBindingNameTraceRecord(string serviceBindingNameSentByClient, string defaultServiceBindingNameOfServer, ServiceNameCollection serviceNameCollectionConfiguredOnServer)
: base("ServiceBindingCheckAfterSpNego")
{
this.serviceBindingNameSentByClient = serviceBindingNameSentByClient;
this.defaultServiceBindingNameOfServer = defaultServiceBindingNameOfServer;
this.serviceNameCollectionConfiguredOnServer = serviceNameCollectionConfiguredOnServer;
}
internal override void WriteTo(XmlWriter xml)
{
if (xml == null)
return;
xml.WriteComment(SR.GetString(SR.ServiceNameFromClient));
xml.WriteElementString("ServiceName", this.serviceBindingNameSentByClient);
xml.WriteComment(SR.GetString(SR.ServiceNameOnService));
xml.WriteStartElement("ServiceNameCollection");
if (this.serviceNameCollectionConfiguredOnServer == null || this.serviceNameCollectionConfiguredOnServer.Count < 1)
{
xml.WriteElementString("ServiceName", this.defaultServiceBindingNameOfServer);
}
else
{
foreach (string serviceName in this.serviceNameCollectionConfiguredOnServer)
{
xml.WriteElementString("ServiceName", serviceName);
}
}
xml.WriteFullEndElement();
}
}
class ChannelBindingNameTraceRecord : SecurityTraceRecord
{
ExtendedProtectionPolicyHelper policyHelper;
bool isServer;
bool channelBindingUsed;
ChannelBinding channelBinding;
public ChannelBindingNameTraceRecord(ExtendedProtectionPolicyHelper policyHelper, bool isServer, ChannelBinding channelBinding)
: base("SpNegoChannelBindingInformation")
{
this.policyHelper = policyHelper;
this.isServer = isServer;
this.channelBindingUsed = false;
this.channelBinding = channelBinding;
}
internal override void WriteTo(XmlWriter xml)
{
if (xml == null)
return;
if (this.policyHelper != null)
{
xml.WriteElementString("PolicyEnforcement", this.policyHelper.PolicyEnforcement.ToString());
xml.WriteElementString("ProtectionScenario", this.policyHelper.ProtectionScenario.ToString());
xml.WriteStartElement("ServiceNameCollection");
if (this.policyHelper.ServiceNameCollection != null && this.policyHelper.ServiceNameCollection.Count > 0)
{
foreach (string serviceName in this.policyHelper.ServiceNameCollection)
{
xml.WriteElementString("ServiceName", serviceName);
}
}
xml.WriteFullEndElement();
if (this.isServer)
{
this.channelBindingUsed = this.policyHelper.ShouldAddChannelBindingToASC();
}
else
{
this.channelBindingUsed = this.policyHelper.ChannelBinding != null;
}
xml.WriteElementString("ChannelBindingUsed", this.channelBindingUsed.ToString());
if (this.channelBinding != null && this.policyHelper.PolicyEnforcement != PolicyEnforcement.Never && this.channelBindingUsed == true)
{
ExtendedProtectionPolicy extendedProtection = new ExtendedProtectionPolicy(policyHelper.PolicyEnforcement, channelBinding);
xml.WriteElementString("ChannelBindingData", GetBase64EncodedChannelBindingData(extendedProtection));
}
}
else
{
// This is the case for KerberosRequestorSecurityToken where policyHelper is null.
if (this.channelBinding != null)
{
xml.WriteElementString("ChannelBindingUsed", "true");
// We do not know the PolicyEnforcement value here on the client side and we can not pass Never
//as ExtendedProtectionPolicy constructor would throw on PolicyEnforcement.Never
ExtendedProtectionPolicy extendedProtection = new ExtendedProtectionPolicy(PolicyEnforcement.WhenSupported, channelBinding);
xml.WriteElementString("ChannelBindingData", GetBase64EncodedChannelBindingData(extendedProtection));
}
else
{
xml.WriteElementString("ChannelBindingUsed", "false");
xml.WriteElementString("ChannelBindingData", null);
}
}
}
internal string GetBase64EncodedChannelBindingData(ExtendedProtectionPolicy extendedProtectionPolicy)
{
MemoryStream ms = new MemoryStream();
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(ms, extendedProtectionPolicy);
byte[] channelBindingData = ms.GetBuffer();
return Convert.ToBase64String(channelBindingData, Base64FormattingOptions.None);
}
}
/// <summary>
/// Used to serialize a token to the trace. Used in multiple places.
/// </summary>
internal class TokenTraceRecord : SecurityTraceRecord
{
const string ElementName = "TokenTraceRecord";
SecurityToken _securityToken;
public TokenTraceRecord(SecurityToken securityToken)
: base(ElementName)
{
_securityToken = securityToken;
}
void WriteSessionToken(XmlWriter writer, SessionSecurityToken sessionToken)
{
SessionSecurityTokenHandler ssth = GetOrCreateSessionSecurityTokenHandler();
XmlDictionaryWriter dictionaryWriter = XmlDictionaryWriter.CreateDictionaryWriter(writer);
ssth.WriteToken(dictionaryWriter, sessionToken);
}
private static SessionSecurityTokenHandler GetOrCreateSessionSecurityTokenHandler()
{
SecurityTokenHandlerCollection defaultHandlers = SecurityTokenHandlerCollection.CreateDefaultSecurityTokenHandlerCollection();
SessionSecurityTokenHandler ssth = defaultHandlers[typeof(SessionSecurityToken)] as SessionSecurityTokenHandler;
if (ssth == null)
{
ssth = new SessionSecurityTokenHandler();
defaultHandlers.AddOrReplace(ssth);
}
return ssth;
}
internal override void WriteTo(XmlWriter writer)
{
writer.WriteStartElement(ElementName);
writer.WriteAttributeString(DiagnosticStrings.NamespaceTag, EventId);
writer.WriteStartElement("SecurityToken");
writer.WriteAttributeString("Type", _securityToken.GetType().ToString());
if (_securityToken is SessionSecurityToken)
{
WriteSessionToken(writer, _securityToken as SessionSecurityToken);
}
else
{
SecurityTokenHandlerCollection sthc = SecurityTokenHandlerCollection.CreateDefaultSecurityTokenHandlerCollection();
if (sthc.CanWriteToken(_securityToken))
{
{
sthc.WriteToken(writer, _securityToken);
}
}
else
{
writer.WriteElementString("Warning", SR.GetString(SR.TraceUnableToWriteToken, _securityToken.GetType().ToString()));
}
}
writer.WriteEndElement();
}
}
}
}
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