/// <summary>Preauthenticates a request.</summary>
/// <returns>An instance of the <see cref="T:System.Net.Authorization" /> class if the request can be preauthenticated; otherwise, null. If <paramref name="credentials" /> is null, this method returns null.</returns>
/// <param name="request">A <see cref="T:System.Net.WebRequest" /> to an Internet resource. </param>
/// <param name="credentials">The <see cref="T:System.Net.ICredentials" /> associated with the request. </param>
/// <exception cref="T:System.ArgumentNullException">
/// <paramref name="request" /> is null. </exception>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="ControlEvidence" />
/// </PermissionSet>
public static Authorization PreAuthenticate(WebRequest request, ICredentials credentials)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
if (credentials == null)
{
return(null);
}
AuthenticationManager.EnsureModules();
ArrayList obj = AuthenticationManager.modules;
lock (obj)
{
foreach (object obj2 in AuthenticationManager.modules)
{
IAuthenticationModule authenticationModule = (IAuthenticationModule)obj2;
Authorization authorization = authenticationModule.PreAuthenticate(request, credentials);
if (authorization != null)
{
authorization.Module = authenticationModule;
return(authorization);
}
}
}
return(null);
}
/// <include file='doc\AuthenticationManager.uex' path='docs/doc[@for="AuthenticationManager.PreAuthenticate"]/*' />
/// <devdoc>
/// <para>Pre-authenticates a request.</para>
/// </devdoc>
public static Authorization PreAuthenticate(WebRequest request, ICredentials credentials)
{
GlobalLog.Print("AuthenticationManager::PreAuthenticate() request:" + ValidationHelper.HashString(request) + " credentials:" + ValidationHelper.HashString(credentials));
if (request == null)
{
throw new ArgumentNullException("request");
}
if (credentials == null)
{
return(null);
}
//
// PrefixLookup is thread-safe
//
string moduleName = s_ModuleBinding.Lookup(((HttpWebRequest)request).ChallengedUri.AbsoluteUri) as string;
GlobalLog.Print("AuthenticationManager::PreAuthenticate() s_ModuleBinding.Lookup returns:" + ValidationHelper.ToString(moduleName));
if (moduleName == null)
{
return(null);
}
IAuthenticationModule module = findModule(moduleName);
if (module == null)
{
// The module could have been unregistered
// No preauthentication is possible
return(null);
}
else
{
// Otherwise invoke the PreAuthenticate method
HttpWebRequest httpWebRequest = request as HttpWebRequest;
if (httpWebRequest != null)
{
httpWebRequest.CurrentAuthenticationState.Module = module;
}
Authorization authorization = module.PreAuthenticate(request, credentials);
GlobalLog.Print("AuthenticationManager::PreAuthenticate() IAuthenticationModule.PreAuthenticate() returned authorization:" + ValidationHelper.HashString(authorization));
return(authorization);
}
}
public static Authorization PreAuthenticate(WebRequest request, ICredentials credentials)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
if (credentials == null)
{
return(null);
}
HttpWebRequest request2 = request as HttpWebRequest;
if (request2 == null)
{
return(null);
}
string authenticationType = s_ModuleBinding.Lookup(request2.ChallengedUri.AbsoluteUri) as string;
if (authenticationType == null)
{
return(null);
}
IAuthenticationModule module = findModule(authenticationType);
if (module == null)
{
return(null);
}
if (request2.ChallengedUri.Scheme == Uri.UriSchemeHttps)
{
ChannelBinding cachedChannelBinding = request2.ServicePoint.CachedChannelBinding as ChannelBinding;
if (cachedChannelBinding != null)
{
request2.CurrentAuthenticationState.TransportContext = new CachedTransportContext(cachedChannelBinding);
}
}
Authorization authorization = module.PreAuthenticate(request, credentials);
if (((authorization != null) && !authorization.Complete) && (request2 != null))
{
request2.CurrentAuthenticationState.Module = module;
}
return(authorization);
}
