Smalltalk/X Webserver

Class: NVTClient

   Object
   |
   +--NVTClient
      |
      +--FTPClient
      |
      +--SMTPClient

Version:: rev: 1.19 date: 2005/05/11 14:59:35; user: cg; file: NVTClient.st directory: goodies/communication; module: stx stc-classLibrary: communication

Abstract superclass for Network Virtual Terminal protocol clients;
i.e. FTPCLient, SMTPClient, TelnetClient etc..

    FTPClient
    appropriate
    RFC's

commandErrorSignal: return the parent of all errors related to command execution
connectFailedSignal: return the parent of all errors related to connection setup
loginFailedSignal: return the signal raised if the login fails
netErrorSignal: return the parent of all net errors
timeoutErrorSignal: return the signal raised on response timeout
transmissionErrorSignal: return the parent signal related to all data transmission errors
unimplementedOperationErrorSignal: return the signal raised if some command is not implemented by
the partner (should not happen)

connectTo: host: connect to some user as anonymous user
connectTo: host port: portNrOrNil user: user password: pw: connect to some host as some user
connectTo: host user: user: connect to some host as user
connectTo: host user: user password: pw: connect to some host as user
connectToHost: host: same as connectTo: - VW compatibility
connectionTimeout: millis: set timeout for establishing a connection. If the millis arg is nonNil, stop trying to
connect after that many milliseconds and raises an exception

defaultPassword: ** This method raises an error - it must be redefined in concrete classes **
defaultPort: ** This method raises an error - it must be redefined in concrete classes **
defaultUser: ** This method raises an error - it must be redefined in concrete classes **

clearReplyPending
getResponse: wait for and read a response.
Leaves result in lastResponse (ascii) and lastReplyCode (numeric).
MultiLine responses are collected in responseLines.
Finally, handleReplyCode (redefinable) is asked to xlate from response code to
exception (if any)
getResponseHandlingReplyCodesWith: handleReplyCodeBlock: wait for and read a response.
Leaves result in lastResponse (ascii) and lastReplyCode (numeric).
MultiLine responses are collected in responseLines.
Finally, handleReplyCode (redefinable) is asked to xlate from response code to
exception (if any)
handleReplyCode: replyCode
sendCommand: aCommandString: send a command, wait for response.
Leaves result in lastResponse (ascii) and lastReplyCode (numeric)
sendCommandNoWait: aCommandString: send a command, do not wait for response.
sendLine: aLine: send a line with CRLF

close: disconnect - if redefined (to send a BYE message), do not forget to
invoke me here as well
connection
doConnect: connect, using the previously defined userName, password and hostName
getInitialConnectResponse: invoked right after the socket connection has been setup;
subclass implementation should read all initial hello-bla

** This method raises an error - it must be redefined in concrete classes **
performLoginSequence: invoked after the socket connection has been setup and the initial
connect response blah has been read.
A subclass implementation should perform whatever login sequence has to be performed.

** This method raises an error - it must be redefined in concrete classes **
sendGoodByeCommand: invoked before the socket connection is shutDown.
A subclass implementation may want to redefine this for a graceful goodBy
(typically sending a quit-command)

ST/X 6.1.1; WebServer 1.620 at exept:8081; Tue, 22 May 2012 21:20:10 GMT