// Token: 0x060000F5 RID: 245 RVA: 0x00006328 File Offset: 0x00004528
public static string ToStringParameterValue(ImapAuthenticationMechanism authMechanism)
{
return(authMechanism.ToString());
}
// Token: 0x06000020 RID: 32 RVA: 0x00002DC0 File Offset: 0x00000FC0
internal Stream GetCommandParameterStream(string targetHost, string responseLine, out Exception failureException)
{
failureException = null;
if (this.CommandType == ImapCommandType.Append)
{
return(this.CommandParameters[2] as Stream);
}
if (this.CommandType == ImapCommandType.Authenticate)
{
byte[] inputBuffer = null;
MemoryStream result = null;
ImapAuthenticationMechanism imapAuthenticationMechanism = (ImapAuthenticationMechanism)this.CommandParameters[0];
string text = (string)this.CommandParameters[1];
SecureString password = (SecureString)this.CommandParameters[2];
AuthenticationContext authenticationContext = (AuthenticationContext)this.CommandParameters[3];
string text2 = null;
if (responseLine != null && responseLine.Length > 2)
{
inputBuffer = Encoding.ASCII.GetBytes(responseLine.Substring(2));
}
byte[] buffer = null;
ImapAuthenticationMechanism imapAuthenticationMechanism2 = imapAuthenticationMechanism;
if (imapAuthenticationMechanism2 != ImapAuthenticationMechanism.Basic)
{
if (imapAuthenticationMechanism2 == ImapAuthenticationMechanism.Ntlm)
{
SecurityStatus securityStatus;
if (authenticationContext == null)
{
authenticationContext = new AuthenticationContext();
this.CommandParameters[3] = authenticationContext;
string spn = "IMAP/" + targetHost;
securityStatus = authenticationContext.InitializeForOutboundNegotiate(AuthenticationMechanism.Ntlm, spn, text, password);
if (securityStatus != SecurityStatus.OK)
{
failureException = new ImapAuthenticationException(targetHost, imapAuthenticationMechanism.ToString(), RetryPolicy.Backoff);
return(null);
}
}
securityStatus = authenticationContext.NegotiateSecurityContext(inputBuffer, out buffer);
SecurityStatus securityStatus2 = securityStatus;
if (securityStatus2 != SecurityStatus.OK && securityStatus2 != SecurityStatus.ContinueNeeded)
{
failureException = new ImapAuthenticationException(targetHost, imapAuthenticationMechanism.ToString(), RetryPolicy.Backoff);
return(null);
}
result = new MemoryStream(buffer);
}
else
{
failureException = new ImapUnsupportedAuthenticationException(targetHost, imapAuthenticationMechanism.ToString(), RetryPolicy.Backoff);
}
}
else
{
SecurityStatus securityStatus;
if (authenticationContext == null)
{
authenticationContext = new AuthenticationContext();
this.CommandParameters[3] = authenticationContext;
Match match = ImapCommand.UserNameWithAuthorizationId.Match(text);
if (match != null && match.Success && match.Groups.Count == 3)
{
text2 = match.Groups[1].Value;
text = match.Groups[2].Value;
}
securityStatus = authenticationContext.InitializeForOutboundNegotiate(AuthenticationMechanism.Plain, null, text, password);
if (securityStatus != SecurityStatus.OK)
{
failureException = new ImapAuthenticationException(targetHost, imapAuthenticationMechanism.ToString(), RetryPolicy.Backoff);
return(null);
}
if (text2 != null)
{
authenticationContext.AuthorizationIdentity = Encoding.ASCII.GetBytes(text2);
}
}
securityStatus = authenticationContext.NegotiateSecurityContext(inputBuffer, out buffer);
SecurityStatus securityStatus3 = securityStatus;
if (securityStatus3 != SecurityStatus.OK)
{
failureException = new ImapAuthenticationException(targetHost, imapAuthenticationMechanism.ToString(), RetryPolicy.Backoff);
return(null);
}
result = new MemoryStream(buffer);
}
return(result);
}
return(null);
}
