[twsocket] Connect issue?
When using ICS Connect and Feat one after another, the log looks like this: Debug: USER username Debug: 331 Password required for username Debug: PASS Debug: 230 Logged on Debug: FEAT Debug: 211-Features: Debug: MDTM Debug: REST STREAM ... which is OK. However, occasionally, the log looks like this: Debug: USER username Debug: 331 Password required for username Debug: FEAT Debug: 211-Features: Debug: MDTM Debug: REST STREAM Debug: SIZE Debug: MLST type*;size*;modify*; Debug: MLSD Debug: UTF8 Debug: CLNT Debug: MFMT Debug: 211 End Debug: PWD Debug: 530 Please log in with USER and PASS first. ... Like Connect would return prematurely, after USER command and not ask for password. Has anyone seen this before? (that is, the same code, same user/pass, same server, ... mostly OK, occasionally second log) Best regards Kristof -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
[twsocket] Unable to register TIcsWndControl hidden window class. Error #1411.
Hi A client reported he gets the following error (about once in 3 runs): Unable to register TIcsWndControl hidden window class. Error #1411. when he runs a larger number of instances (around 30) of FTP application based on ICS. I tried the same, but could not replicate it. I was wondering if anyone run into this issue before? Here's the stack trace: (00086492) [00487492] OverbyteIcsWndControl.TIcsWndHandler.AllocateHWnd (Line 1019, OverbyteIcsWndControl.pas + 29) + $3A (0001AC0B) [0041BC0B] Classes.TList.Grow + $2B (0001AA82) [0041BA82] Classes.TList.Add + $2A (00086D7B) [00487D7B] OverbyteIcsWndControl.TIcsWndHandlerPool.GetWndHandler (Line 1374, OverbyteIcsWndControl.pas + 36) + $4 (00085E28) [00486E28] OverbyteIcsWndControl.TIcsWndControl.AllocateHWnd (Line 601, OverbyteIcsWndControl.pas + 23) + $3 (000AB5FD) [004AC5FD] OverbyteIcsFtpCli.TCustomFtpCli.Create (Line 2233, OverbyteIcsFtpCli.pas + 2) + $4 (000B5C6E) [004B6C6E] OverbyteIcsFtpCli.TFtpClient.Create (Line 6217, OverbyteIcsFtpCli.pas + 1) + $4 Best regards Kristof -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] Unable to register TIcsWndControl hidden window class. Error #1411.
Do you use the FTP component in a DLL or in multiple threads? No, it's single threaded and ICS is compiled into the program itself. Best regards Kristof -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] PASV fallback to public IP
I have a nagging feeling that NAT address manipulation may only happen with FTP clients, if it fails then people use passive mode. This issue happens in passive mode. When FTP client sends PASV command it gets a response which contains private IP address... Adding the same feature as FileZilla FTP client is not hard, since the server public IP address is available from the socket. Doing the same on an FTP server is much harder, and really needs a public STUN server (as used for SIP for the same reason). ... so I guess only replacing IP address given by server in response to PASV with the public one (the one used to connect to the FTP server) should do the trick (at least in this case). This does not need to be automatic or fancy, I guess something like a property OverridePASVIP would be OK - it would force ICS to use server IP plus port given in PASV response. Best regards Kristof -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
[twsocket] PASV fallback to public IP
Some FTP servers return wrong IP for PASV command (private instead of public). In such cases, obviously, FTP component can't connect to the server. Filezilla is smart enough to detect this and switch to public IP, instead: ... Command:TYPE I Response: 200 Type set to I. Command:PASV Response: 227 Entering Passive Mode (192,168,*,*,114,78). Status: Server sent passive reply with unroutable address. Using server address instead. Command:LIST Response: 150 File status okay; about to open data connection. ... Is it possible to achieve this with ICS? Best regards Kristof -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
Re: [twsocket] PASV fallback to public IP
... Do you have a specific example of a live public server returning a private IP that we can test? It will be very difficult to set-up, since it needs a crappy NAT router. Thanks for the explanation, Angus. This issue was reported by one of my users, who later determined the cause by himself, so I have no such public server available. I will ask if this is a public server that can be checked. I guess in his case replacing private with public IP may work, since FileZilla works, however I agree that fixing NAT router would be a better option. Best regards Kristof -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
