//
// gives the IAuthenticationModule a chance to update its internal state.
// do any necessary cleanup and update the Complete status of the associated Authorization.
//
internal void Update(HttpWebRequest httpWebRequest)
{
//
// RAID#86753
// Microsoft: this is just a fix for redirection & kerberos.
// we need to close the Context and call ISC() again with the final
// blob returned from the server. to do this in general
// we would probably need to change the IAuthenticationMdule interface and
// add this Update() method. for now we just have it internally.
//
// actually this turns out to be quite handy for 2 more cases:
// NTLM auth: we need to clear the connection group after we suceed to prevent leakage.
// Digest auth: we need to support stale credentials, if we fail with a 401 and stale is true we need to retry.
//
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() httpWebRequest#" + ValidationHelper.HashString(httpWebRequest) + " Authorization#" + ValidationHelper.HashString(Authorization) + " ResponseStatusCode:" + httpWebRequest.ResponseStatusCode.ToString());
if (Authorization != null)
{
PrepareState(httpWebRequest);
ISessionAuthenticationModule myModule = Module as ISessionAuthenticationModule;
if (myModule != null)
{
//
// the whole point here is to complete the Security Context. Sometimes, though,
// a bad cgi script or a bad server, could miss sending back the final blob.
// in this case we won't be able to complete the handshake, but we'll have to clean up anyway.
//
string challenge = httpWebRequest.AuthHeader(AuthenticateHeader);
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() Complete:" + Authorization.Complete.ToString() + " Module:" + ValidationHelper.ToString(Module) + " challenge:" + ValidationHelper.ToString(challenge));
if (!IsProxyAuth && httpWebRequest.ResponseStatusCode == HttpStatusCode.ProxyAuthenticationRequired)
{
//
// don't call Update on the module, since there's an ongoing
// handshake and we don't need to update any state in such a case
//
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() skipping call to " + myModule.ToString() + ".Update() since we need to reauthenticate with the proxy");
}
else
{
bool complete = true;
try {
complete = myModule.Update(challenge, httpWebRequest);
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() " + myModule.ToString() + ".Update() returned complete:" + complete.ToString());
}
catch (Exception exception) {
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() " + myModule.ToString() + ".Update() caught exception:" + exception.Message);
ClearSession(httpWebRequest);
#if !FEATURE_PAL
if ((httpWebRequest.AuthenticationLevel == AuthenticationLevel.MutualAuthRequired) &&
(httpWebRequest.CurrentAuthenticationState == null || httpWebRequest.CurrentAuthenticationState.Authorization == null || !httpWebRequest.CurrentAuthenticationState.Authorization.MutuallyAuthenticated))
{
throw;
}
#endif // !FEATURE_PAL
}
Authorization.SetComplete(complete);
}
}
//
// If authentication was successful, create binding between
// the request and the authorization for future preauthentication
//
if (httpWebRequest.PreAuthenticate && Module != null && Authorization.Complete && Module.CanPreAuthenticate && httpWebRequest.ResponseStatusCode != StatusCodeMatch)
{
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() handshake is Complete calling BindModule()");
AuthenticationManager.BindModule(ChallengedUri, Authorization, Module);
}
}
}
internal void ClearSession(HttpWebRequest httpWebRequest)
{
PrepareState(httpWebRequest);
ISessionAuthenticationModule myModule = Module as ISessionAuthenticationModule;
Module = null;
if (myModule != null)
{
try {
myModule.ClearSession(httpWebRequest);
}
catch (Exception exception) {
if (NclUtilities.IsFatal(exception))
{
throw;
}
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::ClearSession() " + myModule.ToString() + ".Update() caught exception:" + exception.Message);
}
}
}
//
// gives the IAuthenticationModule a chance to update its internal state.
// do any necessary cleanup and update the Complete status of the associated Authorization.
//
internal void Update(HttpWebRequest httpWebRequest)
{
//
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() httpWebRequest#" + ValidationHelper.HashString(httpWebRequest) + " Authorization#" + ValidationHelper.HashString(Authorization) + " ResponseStatusCode:" + httpWebRequest.ResponseStatusCode.ToString());
if (Authorization != null)
{
PrepareState(httpWebRequest);
ISessionAuthenticationModule myModule = Module as ISessionAuthenticationModule;
if (myModule != null)
{
//
// the whole point here is to complete the Security Context. Sometimes, though,
// a bad cgi script or a bad server, could miss sending back the final blob.
// in this case we won't be able to complete the handshake, but we'll have to clean up anyway.
//
string challenge = httpWebRequest.AuthHeader(AuthenticateHeader);
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() Complete:" + Authorization.Complete.ToString() + " Module:" + ValidationHelper.ToString(Module) + " challenge:" + ValidationHelper.ToString(challenge));
if (!IsProxyAuth && httpWebRequest.ResponseStatusCode == HttpStatusCode.ProxyAuthenticationRequired)
{
//
// don't call Update on the module, since there's an ongoing
// handshake and we don't need to update any state in such a case
//
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() skipping call to " + myModule.ToString() + ".Update() since we need to reauthenticate with the proxy");
}
else
{
bool complete = true;
try {
complete = myModule.Update(challenge, httpWebRequest);
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() " + myModule.ToString() + ".Update() returned complete:" + complete.ToString());
}
catch (Exception exception) {
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() " + myModule.ToString() + ".Update() caught exception:" + exception.Message);
ClearSession(httpWebRequest);
}
catch {
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() " + myModule.ToString() + ".Update() caught exception: Non-CLS Compliant Exception");
ClearSession(httpWebRequest);
}
Authorization.SetComplete(complete);
}
}
//
// If authentication was successful, create binding between
// the request and the authorization for future preauthentication
//
if (Module != null && Authorization.Complete && Module.CanPreAuthenticate && httpWebRequest.ResponseStatusCode != StatusCodeMatch)
{
GlobalLog.Print("AuthenticationState#" + ValidationHelper.HashString(this) + "::Update() handshake is Complete calling BindModule()");
AuthenticationManager.BindModule(ChallengedUri, Authorization, Module);
}
}
}