tftp : ftps : 503 You must issue the PBSZ command prior to PROT

[iztoogood]

Hye all,

i'm trying to build a job that has to connect/list and/or get/list/put files

my first tests (with jks and all required stuff) return the mesage :

503 You must issue the PBSZ command prior to PROT

when i check the job code, i see :

					ftp_tFTPConnection_1
							.setFileType(org.apache.commons.net.ftp.FTP.BINARY_FILE_TYPE);
					ftp_tFTPConnection_1.execPROT("P");
					ftp_tFTPConnection_1.execPBSZ(0);
				} catch (Exception e) {

					throw e;
				}

i've tried to modify the template

D:\TOS_ESB-20180411_1414-V7.0.1\Studio\workspace\.JETEmitters\src\org\talend\designer\codegen\translators\internet\ftp\TFTPConnectionBeginJava.java

but each time i run the job modifications are over written... and the order returns to original order...

how can i deal with this issue ?

when i read filezilla logs, i can see that the order is respected... and it works ...

.../...
Commande :	PBSZ 0
Suivi :	CTlsSocket::OnRead()
Suivi :	CFtpControlSocket::OnReceive()
Réponse :	200 PBSZ 0 successful
Suivi :	CFtpControlSocket::SendNextCommand()
Commande :	PROT P
Suivi :	CTlsSocket::OnRead()
Suivi :	CFtpControlSocket::OnReceive()
Réponse :	200 Protection set to Private
Statut :	Connecté
.../... 

[iztoogood]

reading the rfc2228 ...

the order is suposed to be PBSZ then PROT ...

.../...
the client must issue a PBSZ command before it can issue the first PROT command.
.../...
If the server has not completed a security data exchange with the client, it should respond with a 503 reply code
.../...

[iztoogood]

Thanks to the help of a cool forumer,

modifying this file

D:\TOS_ESB7.0.1\Studio\plugins\org.talend.designer.components.localprovider_7.0.1.20180411_1414\components\tFTPConnection\tFTPConnection_begin.javajet

225: ftp_<%=cid %>.execPBSZ(<%=protectionBufferSize %>);
226: ftp_<%=cid %>.execPROT(<%=protectionLevel %>);

allowed me to change the order of PROT/PBSZ

i don't have any more errors messages...

but no files transfert happens...

any advice is welcome :

[iztoogood]

I hoped 7.2 would fix it ...

and ... there is no more error message ...

but no file list as well 

😞