翻译I cannot figure out how to see the file contents of an FTP site using ftplib.
I can connect to the FTP site using WinSCP just fine, and see the 6 files in the root directory.
In Python 3.4, I am using the following code:
from ftplib import FTP_TLS ftps = FTP_TLS(timeout=100) ftps.connect(ipAddress, 21) ftps.auth() ftps.prot_p() ftps.login('username', 'password')Which produces:
Out[72]: '230 User logged in.'I can then run this:
ftps.pwd()...and I see that I am in the root directory:
Out[73]: '/'Everything seems to be gravy. BUT, when I try to see what is in the directory, using ftps.dir() or ftps.retrlines('NLST'), or anything else I have tried, I get a timeout:
TimeoutError: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respondI have googled around, and found several people saying it could be a 'passive vs active' connection setting problem. However, I asked the administrator of the FTP if it is passive or active, and he acted incredulous, just saying, "It's not SFTP. It is explicit FTP over TLS!!"
I am pretty ignorant of any of this. I am just trying to use ftplib (or any other package!) to connect to his FTP and download some files.
What am I missing??
EDIT: I just figured out WinSCP is using passive mode, so that seems to be what works. As I understand it, ftplib is passive by default, but I went ahead and set the flag to true anyways. This did nothing, and I am still having the same issue.
I also checked my firewall (grabbing at straws), and it is completely turned off, so there should be no issues there.
I also tried sending explicit commands with the '.sendcmd()' method, which seems to be able to send commands, but will not grab any responses (or it cannot see the responses).
Is there some reason why I am able to see the directory I am in, but not any other data? I am obviously connected and talking to the server, and it would seem like the directory being available and viewable to me would imply data can go back and forth. Is the data possibly coming back in some way ftplib doesn't recognize? Any thoughts on where should I begin with troubleshooting this?
Finally, again, it seems like everything is setup correctly on their end, as I can see everything fine in WinSCP. What settings should I check to compare to ftplib?
EDIT 2:
As requested, I set the debug level (thanks for this tip), and below is the output:
ftps = FTP_TLS(timeout=15) ftps.set_debuglevel(2) ftps.connect(ipAddress, 21) ftps.set_pasv(True) ftps.auth() ftps.prot_p() ftps.login('username', 'password') ftps.retrlines('NLST') *get* '220 Microsoft FTP Service\n' *resp* '220 Microsoft FTP Service' *cmd* 'AUTH TLS' *put* 'AUTH TLS\r\n' *get* '234 AUTH command ok. Expecting TLS Negotiation.\n' *resp* '234 AUTH command ok. Expecting TLS Negotiation.' *cmd* 'PBSZ 0' *put* 'PBSZ 0\r\n' *get* '200 PBSZ command successful.\n' *resp* '200 PBSZ command successful.' *cmd* 'PROT P' *put* 'PROT P\r\n' *get* '200 PROT command successful.\n' *resp* '200 PROT command successful.' *cmd* 'USER username' *put* 'USER username\r\n' *get* '331 Password required for username.\n' *resp* '331 Password required for username.' *cmd* 'PASS ****************' *put* 'PASS ****************\r\n' *get* '230 User logged in.\n' *resp* '230 User logged in.' *cmd* 'TYPE A' *put* 'TYPE A\r\n' *get* '200 Type set to A.\n' *resp* '200 Type set to A.' *cmd* 'PASV' *put* 'PASV\r\n' *get* '227 Entering Passive Mode (10,19,1,137,195,128).\n' *resp* '227 Entering Passive Mode (10,19,1,137,195,128).' Traceback (most recent call last): File "", line 8, in ftps.retrlines('NLST') File "C:\Anaconda3\lib\ftplib.py", line 467, in retrlines with self.transfercmd(cmd) as conn, File "C:\Anaconda3\lib\ftplib.py", line 398, in transfercmd return self.ntransfercmd(cmd, rest)[0] File "C:\Anaconda3\lib\ftplib.py", line 793, in ntransfercmd conn, size = FTP.ntransfercmd(self, cmd, rest) File "C:\Anaconda3\lib\ftplib.py", line 360, in ntransfercmd source_address=self.source_address) File "C:\Anaconda3\lib\socket.py", line 516, in create_connection raise err File "C:\Anaconda3\lib\socket.py", line 507, in create_connection sock.connect(sa) timeout: timed out EDIT 3:
I tried to just set the passive flag to false, but when I ask for files, I get the following:
ftps.retrlines('NLST') *cmd* 'TYPE A' *put* 'TYPE A\r\n' *get* '200 Type set to A.\n' *resp* '200 Type set to A.' *cmd* 'PORT 10,1,10,100,223,39' *put* 'PORT 10,1,10,100,223,39\r\n' *get* '501 Server cannot accept argument.\n' *resp* '501 Server cannot accept argument.'EDIT 4:
I enabled logging on WinSCP, and it looks like the helpful Steffen Ullrich was right! This was in the log for WinSCP:
So, how do I get ftplib to do the same thing?
EDIT 5:
Found THIS - which is just rewriting the source to make it look to the host. Anyone else got a simpler, less intrusive/possibly-destructive way to do this?
As a second option, since the admin seems less than up to snuff, is there something explicit I can tell him to go do to the host to make this work better (i.e. - have passive return the correct IP)?