TIdNNTP.SendCmd Method

Executes NNTP commands verbs.

Pascal

function SendCmd(
    AOut: string; 
    const AResponse: array of SmallInt
): SmallInt; override;

Parameters

Parameters	Description
AOut	NNTP command to be executed.
AResponse	Array of anticipated numeric response codes. An empty array ([]) indicates that no response code is expected.

Returns

SmallInt - Response code returned from either the NNTP send command.

Description

SendCmd is an overriden SmallInt function in TIdNNTP. SendCmd calls the inherited SendCmd method using an empty array indicating no expected response codes.

SendCmd extends the ancestor method by implementing User and Password authentication using the NNTP AUTHINFO service extension when the response code returned by TIdTCPConnection.SendCmd is either 450 or 480, as described in the Internet Standards document:

RFC 2980 - Common NNTP Extensions

When either of these responses is encountered, SendCmd sends additional NNTP AUTHINFO commands to the server to perform client authentication using the values in Username and Password.

SendCmd performs default error handling by calling CheckResponse. An EIdResponseError exception will be raised when a valid response is expected and the result, from either the inherited SendCmd or from the authentication of User and Password information, does not match the expected response code(s).