private Authorization Authenticate(HttpWebRequest httpWebRequest, ICredentials credentials)
{
if (credentials == null)
{
return(null);
}
// Get the username and password from the credentials
NetworkCredential nc = credentials.GetCredential(httpWebRequest.RequestUri, AuthenticationTypeName);
if (nc == null)
{
return(null);
}
ICredentialPolicy policy = AuthenticationManager.CredentialPolicy;
if (policy != null && !policy.ShouldSendCredential(httpWebRequest.RequestUri, httpWebRequest, nc, this))
{
return(null);
}
string domain = nc.Domain;
string basicTicket = (!String.IsNullOrEmpty(domain) ? (domain + "\\") : "") + nc.UserName + ":" + nc.Password;
byte[] bytes = Encoding.UTF8.GetBytes(basicTicket);
string header = AuthenticationTypeName + " " + Convert.ToBase64String(bytes);
return(new Authorization(header, true));
}
public Authorization Authenticate(string challenge, WebRequest request, ICredentials credentials)
{
Authorization result = null;
if (request == null || credentials == null)
{
result = null;
}
else
{
NetworkCredential creds = credentials.GetCredential(LoginServerUrl, TheAuthenticationType);
if (creds == null)
{
return(null);
}
ICredentialPolicy policy = AuthenticationManager.CredentialPolicy;
if (policy != null && !policy.ShouldSendCredential(LoginServerUrl, request, creds, this))
{
return(null);
}
string token = Convert.ToBase64String(Encoding.UTF8.GetBytes(string.Format("{0}:{1}", creds.UserName, creds.Password)));
result = new Authorization(string.Format("Basic {0}", token));
}
return(result);
}
private Authorization Lookup(HttpWebRequest httpWebRequest, ICredentials credentials)
{
//NetworkCredential credential = credentials.GetCredential(httpWebRequest.ChallengedUri, BasicClient.Signature);
var net_cred = credentials.GetCredential(httpWebRequest.RequestUri, "Basic");
if (net_cred == null)
{
return(null);
}
ICredentialPolicy credentialPolicy = AuthenticationManager.CredentialPolicy;
if (credentialPolicy != null && !credentialPolicy.ShouldSendCredential(httpWebRequest.RequestUri, httpWebRequest, net_cred, this))
{
return(null);
}
var user_pass = String.Join(":", net_cred.UserName, net_cred.Password).ToUtf8();
string authToken = "Basic " + user_pass.ToBase64();
return(new Authorization(authToken, true));
}
private Authorization Lookup(HttpWebRequest httpWebRequest, ICredentials credentials)
{
GlobalLog.Print("BasicClient::Lookup(): ChallengedUri:" + httpWebRequest.ChallengedUri.ToString());
NetworkCredential NC = credentials.GetCredential(httpWebRequest.ChallengedUri, Signature);
GlobalLog.Print("BasicClient::Lookup() GetCredential() returns:" + ValidationHelper.ToString(NC));
if (NC == null)
{
return(null);
}
ICredentialPolicy policy = AuthenticationManager.CredentialPolicy;
if (policy != null && !policy.ShouldSendCredential(httpWebRequest.ChallengedUri, httpWebRequest, NC, this))
{
return(null);
}
string username = NC.InternalGetUserName();
string domain = NC.InternalGetDomain();
if (ValidationHelper.IsBlankString(username))
{
return(null);
}
string rawString = ((!ValidationHelper.IsBlankString(domain)) ? (domain + "\\") : "") + username + ":" + NC.InternalGetPassword();
// The response is an "Authorization:" header where the value is
// the text "Basic" followed by BASE64 encoded (as defined by RFC1341) value
byte[] bytes = EncodingRightGetBytes(rawString);
string responseHeader = BasicClient.AuthType + " " + Convert.ToBase64String(bytes);
return(new Authorization(responseHeader, true));
}
private Authorization Lookup(HttpWebRequest httpWebRequest, ICredentials credentials)
{
NetworkCredential credential = credentials.GetCredential(httpWebRequest.ChallengedUri, Signature);
if (credential == null)
{
return(null);
}
ICredentialPolicy credentialPolicy = AuthenticationManager.CredentialPolicy;
if ((credentialPolicy != null) && !credentialPolicy.ShouldSendCredential(httpWebRequest.ChallengedUri, httpWebRequest, credential, this))
{
return(null);
}
string userName = credential.InternalGetUserName();
string domain = credential.InternalGetDomain();
if (ValidationHelper.IsBlankString(userName))
{
return(null);
}
byte[] inArray = EncodingRightGetBytes((!ValidationHelper.IsBlankString(domain) ? (domain + @"\") : "") + userName + ":" + credential.InternalGetPassword());
return(new Authorization("Basic " + Convert.ToBase64String(inArray), true));
}
private Authorization DoAuthenticate(string challenge, WebRequest webRequest, ICredentials credentials, bool preAuthenticate)
{
GlobalLog.Print("KerberosClient::DoAuthenticate() challenge:[" + ValidationHelper.ToString(challenge) + "] webRequest#" + ValidationHelper.HashString(webRequest) + " credentials#" + ValidationHelper.HashString(credentials) + " preAuthenticate:" + preAuthenticate.ToString());
GlobalLog.Assert(credentials != null, "KerberosClient::DoAuthenticate()|credentials == null");
if (credentials == null)
{
return(null);
}
HttpWebRequest httpWebRequest = webRequest as HttpWebRequest;
GlobalLog.Assert(httpWebRequest != null, "KerberosClient::DoAuthenticate()|httpWebRequest == null");
GlobalLog.Assert(httpWebRequest.ChallengedUri != null, "KerberosClient::DoAuthenticate()|httpWebRequest.ChallengedUri == null");
NTAuthentication authSession = null;
string incoming = null;
if (!preAuthenticate)
{
int index = AuthenticationManager.FindSubstringNotInQuotes(challenge, Signature);
if (index < 0)
{
return(null);
}
int blobBegin = index + SignatureSize;
//
// there may be multiple challenges. If the next character after the
// package name is not a comma then it is challenge data
//
if (challenge.Length > blobBegin && challenge[blobBegin] != ',')
{
++blobBegin;
}
else
{
index = -1;
}
if (index >= 0 && challenge.Length > blobBegin)
{
// Strip other modules information in case of multiple challenges
// i.e do not take ", NTLM" as part of the following Negotiate blob
// Negotiate TlRMTVNTUAACAAAADgAOADgAAAA1wo ... MAbwBmAHQALgBjAG8AbQAAAAAA,NTLM
index = challenge.IndexOf(',', blobBegin);
if (index != -1)
{
incoming = challenge.Substring(blobBegin, index - blobBegin);
}
else
{
incoming = challenge.Substring(blobBegin);
}
}
authSession = httpWebRequest.CurrentAuthenticationState.GetSecurityContext(this);
GlobalLog.Print("KerberosClient::DoAuthenticate() key:" + ValidationHelper.HashString(httpWebRequest.CurrentAuthenticationState) + " retrieved authSession:" + ValidationHelper.HashString(authSession));
}
if (authSession == null)
{
NetworkCredential NC = credentials.GetCredential(httpWebRequest.ChallengedUri, Signature);
GlobalLog.Print("KerberosClient::DoAuthenticate() GetCredential() returns:" + ValidationHelper.ToString(NC));
if (NC == null || (!(NC is SystemNetworkCredential) && NC.InternalGetUserName().Length == 0))
{
return(null);
}
ICredentialPolicy policy = AuthenticationManager.CredentialPolicy;
if (policy != null && !policy.ShouldSendCredential(httpWebRequest.ChallengedUri, httpWebRequest, NC, this))
{
return(null);
}
SpnToken spn = httpWebRequest.CurrentAuthenticationState.GetComputeSpn(httpWebRequest);
GlobalLog.Print("KerberosClient::Authenticate() ChallengedSpn:" + ValidationHelper.ToString(spn));
ChannelBinding binding = null;
if (httpWebRequest.CurrentAuthenticationState.TransportContext != null)
{
binding = httpWebRequest.CurrentAuthenticationState.TransportContext.GetChannelBinding(ChannelBindingKind.Endpoint);
}
authSession =
new NTAuthentication(
AuthType,
NC,
spn,
httpWebRequest,
binding);
GlobalLog.Print("KerberosClient::DoAuthenticate() setting SecurityContext for:" + ValidationHelper.HashString(httpWebRequest.CurrentAuthenticationState) + " to authSession:" + ValidationHelper.HashString(authSession));
httpWebRequest.CurrentAuthenticationState.SetSecurityContext(authSession, this);
}
string clientResponse = authSession.GetOutgoingBlob(incoming);
if (clientResponse == null)
{
return(null);
}
return(new Authorization(AuthType + " " + clientResponse, authSession.IsCompleted, string.Empty, authSession.IsMutualAuthFlag));
}
private Authorization DoAuthenticate(string challenge, WebRequest webRequest, ICredentials credentials, bool preAuthenticate)
{
if (credentials == null)
{
return(null);
}
HttpWebRequest request = webRequest as HttpWebRequest;
NTAuthentication securityContext = null;
string incomingBlob = null;
if (!preAuthenticate)
{
int index = AuthenticationManager.FindSubstringNotInQuotes(challenge, Signature);
if (index < 0)
{
return(null);
}
int startIndex = index + SignatureSize;
if ((challenge.Length > startIndex) && (challenge[startIndex] != ','))
{
startIndex++;
}
else
{
index = -1;
}
if ((index >= 0) && (challenge.Length > startIndex))
{
index = challenge.IndexOf(',', startIndex);
if (index != -1)
{
incomingBlob = challenge.Substring(startIndex, index - startIndex);
}
else
{
incomingBlob = challenge.Substring(startIndex);
}
}
securityContext = request.CurrentAuthenticationState.GetSecurityContext(this);
}
if (securityContext == null)
{
NetworkCredential credential = credentials.GetCredential(request.ChallengedUri, Signature);
string str2 = string.Empty;
if ((credential == null) || (!(credential is SystemNetworkCredential) && ((str2 = credential.InternalGetUserName()).Length == 0)))
{
return(null);
}
if (((str2.Length + credential.InternalGetPassword().Length) + credential.InternalGetDomain().Length) > 0x20f)
{
return(null);
}
ICredentialPolicy credentialPolicy = AuthenticationManager.CredentialPolicy;
if ((credentialPolicy != null) && !credentialPolicy.ShouldSendCredential(request.ChallengedUri, request, credential, this))
{
return(null);
}
string computeSpn = request.CurrentAuthenticationState.GetComputeSpn(request);
ChannelBinding channelBinding = null;
if (request.CurrentAuthenticationState.TransportContext != null)
{
channelBinding = request.CurrentAuthenticationState.TransportContext.GetChannelBinding(ChannelBindingKind.Endpoint);
}
securityContext = new NTAuthentication("NTLM", credential, computeSpn, request, channelBinding);
request.CurrentAuthenticationState.SetSecurityContext(securityContext, this);
}
string outgoingBlob = securityContext.GetOutgoingBlob(incomingBlob);
if (outgoingBlob == null)
{
return(null);
}
bool unsafeOrProxyAuthenticatedConnectionSharing = request.UnsafeOrProxyAuthenticatedConnectionSharing;
if (unsafeOrProxyAuthenticatedConnectionSharing)
{
request.LockConnection = true;
}
request.NtlmKeepAlive = incomingBlob == null;
return(AuthenticationManager.GetGroupAuthorization(this, "NTLM " + outgoingBlob, securityContext.IsCompleted, securityContext, unsafeOrProxyAuthenticatedConnectionSharing, false));
}
private Authorization DoAuthenticate(string challenge, WebRequest webRequest, ICredentials credentials, bool preAuthenticate)
{
GlobalLog.Print("NegotiateClient::DoAuthenticate() challenge:[" + ValidationHelper.ToString(challenge) + "] webRequest#" + ValidationHelper.HashString(webRequest) + " credentials#" + ValidationHelper.HashString(credentials) + " preAuthenticate:" + preAuthenticate.ToString());
GlobalLog.Assert(credentials != null, "NegotiateClient::DoAuthenticate()|credentials == null");
if (credentials == null)
{
return(null);
}
HttpWebRequest httpWebRequest = webRequest as HttpWebRequest;
GlobalLog.Assert(httpWebRequest != null, "NegotiateClient::DoAuthenticate()|httpWebRequest == null");
GlobalLog.Assert(httpWebRequest.ChallengedUri != null, "NegotiateClient::DoAuthenticate()|httpWebRequest.ChallengedUri == null");
NTAuthentication authSession = null;
string incoming = null;
bool useNego2 = false; // In case of pre-auth we always use "Negotiate", never "Nego2".
if (!preAuthenticate)
{
int index = GetSignatureIndex(challenge, out useNego2);
if (index < 0)
{
return(null);
}
int blobBegin = index + (useNego2 ? nego2Signature.Length : negotiateSignature.Length);
//
// there may be multiple challenges. If the next character after the
// package name is not a comma then it is challenge data
//
if (challenge.Length > blobBegin && challenge[blobBegin] != ',')
{
++blobBegin;
}
else
{
index = -1;
}
if (index >= 0 && challenge.Length > blobBegin)
{
// Strip other modules information in case of multiple challenges
// i.e do not take ", NTLM" as part of the following Negotiate blob
// Negotiate TlRMTVNTUAACAAAADgAOADgAAAA1wo ... MAbwBmAHQALgBjAG8AbQAAAAAA,NTLM
index = challenge.IndexOf(',', blobBegin);
if (index != -1)
{
incoming = challenge.Substring(blobBegin, index - blobBegin);
}
else
{
incoming = challenge.Substring(blobBegin);
}
}
authSession = httpWebRequest.CurrentAuthenticationState.GetSecurityContext(this);
GlobalLog.Print("NegotiateClient::DoAuthenticate() key:" + ValidationHelper.HashString(httpWebRequest.CurrentAuthenticationState) + " retrieved authSession:" + ValidationHelper.HashString(authSession));
}
if (authSession == null)
{
// Credentials are always set for "Negotiate", never for "Nego2". A customer shouldn't even know
// about "Nego2".
NetworkCredential NC = credentials.GetCredential(httpWebRequest.ChallengedUri, negotiateSignature);
GlobalLog.Print("NegotiateClient::DoAuthenticate() GetCredential() returns:" + ValidationHelper.ToString(NC));
string username = string.Empty;
if (NC == null || (!(NC is SystemNetworkCredential) && (username = NC.InternalGetUserName()).Length == 0))
{
return(null);
}
ICredentialPolicy policy = AuthenticationManager.CredentialPolicy;
if (policy != null && !policy.ShouldSendCredential(httpWebRequest.ChallengedUri, httpWebRequest, NC, this))
{
return(null);
}
SpnToken spn = httpWebRequest.CurrentAuthenticationState.GetComputeSpn(httpWebRequest);
GlobalLog.Print("NegotiateClient::Authenticate() ChallengedSpn:" + ValidationHelper.ToString(spn));
ChannelBinding binding = null;
if (httpWebRequest.CurrentAuthenticationState.TransportContext != null)
{
binding = httpWebRequest.CurrentAuthenticationState.TransportContext.GetChannelBinding(ChannelBindingKind.Endpoint);
}
authSession =
new NTAuthentication(
AuthType,
NC,
spn,
httpWebRequest,
binding);
GlobalLog.Print("NegotiateClient::DoAuthenticate() setting SecurityContext for:" + ValidationHelper.HashString(httpWebRequest.CurrentAuthenticationState) + " to authSession:" + ValidationHelper.HashString(authSession));
httpWebRequest.CurrentAuthenticationState.SetSecurityContext(authSession, this);
}
string clientResponse = authSession.GetOutgoingBlob(incoming);
if (clientResponse == null)
{
return(null);
}
bool canShareConnection = httpWebRequest.UnsafeOrProxyAuthenticatedConnectionSharing;
if (canShareConnection)
{
httpWebRequest.LockConnection = true;
}
// this is the first leg of an NTLM handshake,
// set the NtlmKeepAlive override *STRICTLY* only in this case.
httpWebRequest.NtlmKeepAlive = incoming == null && authSession.IsValidContext && !authSession.IsKerberos;
// If we received a "Nego2" header value from the server, we'll respond with "Nego2" in the "Authorization"
// header. If the server sent a "Negotiate" header value or if pre-authenticate is used (i.e. the auth blob
// is sent with the first request), we send "Negotiate" in the "Authorization" header.
return(AuthenticationManager.GetGroupAuthorization(this, (useNego2 ? nego2Header : negotiateHeader) +
" " + clientResponse, authSession.IsCompleted, authSession, canShareConnection, authSession.IsKerberos));
}
private Authorization DoAuthenticate(string challenge, WebRequest webRequest, ICredentials credentials, bool preAuthenticate)
{
if (credentials == null)
{
return(null);
}
HttpWebRequest request = webRequest as HttpWebRequest;
NTAuthentication securityContext = null;
string incomingBlob = null;
bool flag = false;
if (!preAuthenticate)
{
int signatureIndex = GetSignatureIndex(challenge, out flag);
if (signatureIndex < 0)
{
return(null);
}
int startIndex = signatureIndex + (flag ? "nego2".Length : "negotiate".Length);
if ((challenge.Length > startIndex) && (challenge[startIndex] != ','))
{
startIndex++;
}
else
{
signatureIndex = -1;
}
if ((signatureIndex >= 0) && (challenge.Length > startIndex))
{
signatureIndex = challenge.IndexOf(',', startIndex);
if (signatureIndex != -1)
{
incomingBlob = challenge.Substring(startIndex, signatureIndex - startIndex);
}
else
{
incomingBlob = challenge.Substring(startIndex);
}
}
securityContext = request.CurrentAuthenticationState.GetSecurityContext(this);
}
if (securityContext == null)
{
NetworkCredential credential = credentials.GetCredential(request.ChallengedUri, "negotiate");
if ((credential == null) || (!(credential is SystemNetworkCredential) && (credential.InternalGetUserName().Length == 0)))
{
return(null);
}
ICredentialPolicy credentialPolicy = AuthenticationManager.CredentialPolicy;
if ((credentialPolicy != null) && !credentialPolicy.ShouldSendCredential(request.ChallengedUri, request, credential, this))
{
return(null);
}
string computeSpn = request.CurrentAuthenticationState.GetComputeSpn(request);
ChannelBinding channelBinding = null;
if (request.CurrentAuthenticationState.TransportContext != null)
{
channelBinding = request.CurrentAuthenticationState.TransportContext.GetChannelBinding(ChannelBindingKind.Endpoint);
}
securityContext = new NTAuthentication("Negotiate", credential, computeSpn, request, channelBinding);
request.CurrentAuthenticationState.SetSecurityContext(securityContext, this);
}
string outgoingBlob = securityContext.GetOutgoingBlob(incomingBlob);
if (outgoingBlob == null)
{
return(null);
}
bool unsafeOrProxyAuthenticatedConnectionSharing = request.UnsafeOrProxyAuthenticatedConnectionSharing;
if (unsafeOrProxyAuthenticatedConnectionSharing)
{
request.LockConnection = true;
}
request.NtlmKeepAlive = ((incomingBlob == null) && securityContext.IsValidContext) && !securityContext.IsKerberos;
return(AuthenticationManager.GetGroupAuthorization(this, (flag ? "Nego2" : "Negotiate") + " " + outgoingBlob, securityContext.IsCompleted, securityContext, unsafeOrProxyAuthenticatedConnectionSharing, securityContext.IsKerberos));
}
private Authorization DoAuthenticate(string challenge, WebRequest webRequest, ICredentials credentials, bool preAuthenticate)
{
HttpDigestChallenge challenge2;
if (credentials == null)
{
return(null);
}
HttpWebRequest httpWebRequest = webRequest as HttpWebRequest;
NetworkCredential credential = credentials.GetCredential(httpWebRequest.ChallengedUri, Signature);
if (credential is SystemNetworkCredential)
{
if (WDigestAvailable)
{
return(this.XPDoAuthenticate(challenge, httpWebRequest, credentials, preAuthenticate));
}
return(null);
}
if (!preAuthenticate)
{
int startingPoint = AuthenticationManager.FindSubstringNotInQuotes(challenge, Signature);
if (startingPoint < 0)
{
return(null);
}
challenge2 = HttpDigest.Interpret(challenge, startingPoint, httpWebRequest);
}
else
{
challenge2 = challengeCache.Lookup(httpWebRequest.ChallengedUri.AbsoluteUri) as HttpDigestChallenge;
}
if (challenge2 == null)
{
return(null);
}
if (!CheckQOP(challenge2))
{
if (Logging.On)
{
Logging.PrintError(Logging.Web, SR.GetString("net_log_digest_qop_not_supported", new object[] { challenge2.QualityOfProtection }));
}
return(null);
}
if (preAuthenticate)
{
challenge2 = challenge2.CopyAndIncrementNonce();
challenge2.SetFromRequest(httpWebRequest);
}
if (credential == null)
{
return(null);
}
ICredentialPolicy credentialPolicy = AuthenticationManager.CredentialPolicy;
if ((credentialPolicy != null) && !credentialPolicy.ShouldSendCredential(httpWebRequest.ChallengedUri, httpWebRequest, credential, this))
{
return(null);
}
string computeSpn = httpWebRequest.CurrentAuthenticationState.GetComputeSpn(httpWebRequest);
ChannelBinding channelBinding = null;
if (httpWebRequest.CurrentAuthenticationState.TransportContext != null)
{
channelBinding = httpWebRequest.CurrentAuthenticationState.TransportContext.GetChannelBinding(ChannelBindingKind.Endpoint);
}
Authorization authorization = HttpDigest.Authenticate(challenge2, credential, computeSpn, channelBinding);
if ((!preAuthenticate && webRequest.PreAuthenticate) && (authorization != null))
{
string[] strArray = (challenge2.Domain == null) ? new string[] { httpWebRequest.ChallengedUri.GetParts(UriComponents.SchemeAndServer, UriFormat.UriEscaped) } : challenge2.Domain.Split(singleSpaceArray);
authorization.ProtectionRealm = (challenge2.Domain == null) ? null : strArray;
for (int i = 0; i < strArray.Length; i++)
{
challengeCache.Add(strArray[i], challenge2);
}
}
return(authorization);
}
private Authorization XPDoAuthenticate(string challenge, HttpWebRequest httpWebRequest, ICredentials credentials, bool preAuthenticate)
{
NTAuthentication securityContext = null;
string incomingBlob = null;
SecurityStatus status;
if (!preAuthenticate)
{
int index = AuthenticationManager.FindSubstringNotInQuotes(challenge, Signature);
if (index < 0)
{
return(null);
}
securityContext = httpWebRequest.CurrentAuthenticationState.GetSecurityContext(this);
incomingBlob = RefineDigestChallenge(challenge, index);
}
else
{
HttpDigestChallenge challenge2 = challengeCache.Lookup(httpWebRequest.ChallengedUri.AbsoluteUri) as HttpDigestChallenge;
if (challenge2 == null)
{
return(null);
}
challenge2 = challenge2.CopyAndIncrementNonce();
challenge2.SetFromRequest(httpWebRequest);
incomingBlob = challenge2.ToBlob();
}
UriComponents uriParts = 0;
if (httpWebRequest.CurrentMethod.ConnectRequest)
{
uriParts = UriComponents.HostAndPort;
}
else if (httpWebRequest.UsesProxySemantics)
{
uriParts = UriComponents.HttpRequestUrl;
}
else
{
uriParts = UriComponents.PathAndQuery;
}
string parts = httpWebRequest.GetRemoteResourceUri().GetParts(uriParts, UriFormat.UriEscaped);
if (securityContext == null)
{
NetworkCredential credential = credentials.GetCredential(httpWebRequest.ChallengedUri, Signature);
if ((credential == null) || (!(credential is SystemNetworkCredential) && (credential.InternalGetUserName().Length == 0)))
{
return(null);
}
ICredentialPolicy credentialPolicy = AuthenticationManager.CredentialPolicy;
if ((credentialPolicy != null) && !credentialPolicy.ShouldSendCredential(httpWebRequest.ChallengedUri, httpWebRequest, credential, this))
{
return(null);
}
string computeSpn = httpWebRequest.CurrentAuthenticationState.GetComputeSpn(httpWebRequest);
ChannelBinding channelBinding = null;
if (httpWebRequest.CurrentAuthenticationState.TransportContext != null)
{
channelBinding = httpWebRequest.CurrentAuthenticationState.TransportContext.GetChannelBinding(ChannelBindingKind.Endpoint);
}
securityContext = new NTAuthentication("WDigest", credential, computeSpn, httpWebRequest, channelBinding);
httpWebRequest.CurrentAuthenticationState.SetSecurityContext(securityContext, this);
}
string str4 = securityContext.GetOutgoingDigestBlob(incomingBlob, httpWebRequest.CurrentMethod.Name, parts, null, false, false, out status);
if (str4 == null)
{
return(null);
}
Authorization authorization = new Authorization("Digest " + str4, securityContext.IsCompleted, string.Empty, securityContext.IsMutualAuthFlag);
if (!preAuthenticate && httpWebRequest.PreAuthenticate)
{
HttpDigestChallenge challenge3 = HttpDigest.Interpret(incomingBlob, -1, httpWebRequest);
string[] strArray = (challenge3.Domain == null) ? new string[] { httpWebRequest.ChallengedUri.GetParts(UriComponents.SchemeAndServer, UriFormat.UriEscaped) } : challenge3.Domain.Split(singleSpaceArray);
authorization.ProtectionRealm = (challenge3.Domain == null) ? null : strArray;
for (int i = 0; i < strArray.Length; i++)
{
challengeCache.Add(strArray[i], challenge3);
}
}
return(authorization);
}
private Authorization DoAuthenticate(string challenge, WebRequest webRequest, ICredentials credentials, bool preAuthenticate)
{
if (credentials == null)
{
return(null);
}
HttpWebRequest request = webRequest as HttpWebRequest;
NTAuthentication securityContext = null;
string incomingBlob = null;
if (!preAuthenticate)
{
int index = AuthenticationManager.FindSubstringNotInQuotes(challenge, Signature);
if (index < 0)
{
return(null);
}
int startIndex = index + SignatureSize;
if ((challenge.Length > startIndex) && (challenge[startIndex] != ','))
{
startIndex++;
}
else
{
index = -1;
}
if ((index >= 0) && (challenge.Length > startIndex))
{
index = challenge.IndexOf(',', startIndex);
if (index != -1)
{
incomingBlob = challenge.Substring(startIndex, index - startIndex);
}
else
{
incomingBlob = challenge.Substring(startIndex);
}
}
securityContext = request.CurrentAuthenticationState.GetSecurityContext(this);
}
if (securityContext == null)
{
NetworkCredential credential = credentials.GetCredential(request.ChallengedUri, Signature);
if ((credential == null) || (!(credential is SystemNetworkCredential) && (credential.InternalGetUserName().Length == 0)))
{
return(null);
}
ICredentialPolicy credentialPolicy = AuthenticationManager.CredentialPolicy;
if ((credentialPolicy != null) && !credentialPolicy.ShouldSendCredential(request.ChallengedUri, request, credential, this))
{
return(null);
}
string computeSpn = request.CurrentAuthenticationState.GetComputeSpn(request);
ChannelBinding channelBinding = null;
if (request.CurrentAuthenticationState.TransportContext != null)
{
channelBinding = request.CurrentAuthenticationState.TransportContext.GetChannelBinding(ChannelBindingKind.Endpoint);
}
securityContext = new NTAuthentication("Kerberos", credential, computeSpn, request, channelBinding);
request.CurrentAuthenticationState.SetSecurityContext(securityContext, this);
}
string outgoingBlob = securityContext.GetOutgoingBlob(incomingBlob);
if (outgoingBlob == null)
{
return(null);
}
return(new Authorization("Kerberos " + outgoingBlob, securityContext.IsCompleted, string.Empty, securityContext.IsMutualAuthFlag));
}