Re: Using wget through FTP proxy server

2007-10-25 Thread Jochen Roderburg
Zitat von Micah Cowan [EMAIL PROTECTED]:

 There are two bugs here, actually: one is lack of support for
 authentication with FTP proxies (feature request), the other is that
 it's not clearly documented that proxy-user/proxy-password only apply to
 HTTP proxies.

 Can anyone tell me offhand, does Wget currently support the use of HTTP
 proxies for fetching FTP resources (GET ftp://foo/ HTTP/1.1)? It looks
 to me like the answer is no; if so, that should be filed as well.

This is in wget for long time and working well.

These sometimes called FTP-Proxies are not explicitly supported.
There also seem to exist various schemes how the authentication information for
the proxy and the ftp behind it is transferred, some combinations of USER, PASS
and AUTH, some of them can even be done with wget and a suitable crafted URL. I
think after login the FTP-client does a normal FTP session with the FTP-proxy.

Best regards,

Jochen Roderburg
ZAIK/RRZK
University of Cologne
Robert-Koch-Str. 10 Tel.:   +49-221/478-7024
D-50931 Koeln   E-Mail: [EMAIL PROTECTED]
Germany



Re: Using wget through FTP proxy server

2007-10-25 Thread Alan Watt
I'm not sure that I follow how this might be used in my particular 
case.  I have to work with
an existing proxy server which talks FTP protocol on port 21; I don't 
have an HTTP proxy server

which can get me into the private network where the FTP servers are.

The way this particular FTP proxy works, assuming the following:

 proxy user name:   phred
 proxy user passwd: xyzzy
 proxy server IP: 169.254.1.1
 remote FTP user:   sherlock
 remote FTP passwd: holmes
 remote FTP server IP:  30.1.1.1

you connect to TCP port 21 on the proxy server (in the example above, 
169.254.1.1)


send USER phred, followed by PASS xyzzy
send USER [EMAIL PROTECTED] followed by PASS holmes

After this point, everything looks like a real FTP session with the 
remote server.


As I mentioned, both CuteFTP and WS-FTP Pro refer to this proxy type as 
USER after logon.  It must be fairly common, because once you get past 
the confusing terminology, setting up WS-FTP Pro to negotiate the proxy 
is quite simple.


Jochen Roderburg wrote:


Zitat von Micah Cowan [EMAIL PROTECTED]:

 


There are two bugs here, actually: one is lack of support for
authentication with FTP proxies (feature request), the other is that
it's not clearly documented that proxy-user/proxy-password only apply to
HTTP proxies.

Can anyone tell me offhand, does Wget currently support the use of HTTP
proxies for fetching FTP resources (GET ftp://foo/ HTTP/1.1)? It looks
to me like the answer is no; if so, that should be filed as well.
   



This is in wget for long time and working well.

These sometimes called FTP-Proxies are not explicitly supported.
There also seem to exist various schemes how the authentication information for
the proxy and the ftp behind it is transferred, some combinations of USER, PASS
and AUTH, some of them can even be done with wget and a suitable crafted URL. I
think after login the FTP-client does a normal FTP session with the FTP-proxy.

Best regards,

Jochen Roderburg
ZAIK/RRZK
University of Cologne
Robert-Koch-Str. 10 Tel.:   +49-221/478-7024
D-50931 Koeln   E-Mail: [EMAIL PROTECTED]
Germany

 





Re: Using wget through FTP proxy server

2007-10-24 Thread Steven M. Schweda
From: Alan Watt

 I'm using wget version 1.9.1 for Solaris 8 (SPARC). [...]

   I don't deal with proxies, so I don't know much about this, but you
might do better with the current released version, 1.10.2.  I don't know
if a suitable binary kit is generally available, but if you can't find
one, and you can't build it from the source, I can build one on Solaris
10, if you think that that might be useful.



   Steven M. Schweda   [EMAIL PROTECTED]
   382 South Warwick Street(+1) 651-699-9818
   Saint Paul  MN  55105-2547


Re: Using wget through FTP proxy server

2007-10-24 Thread Alan Watt
Thanks for the response.  In fact the current available Sun Freeware 
package for Solaris 8 is 1.10.2;  the one I'm using in production was 
loaded some time ago.  I'll just need to load the new package on a test 
server and check it out.


Steven M. Schweda wrote:


From: Alan Watt

 


I'm using wget version 1.9.1 for Solaris 8 (SPARC). [...]
   



  I don't deal with proxies, so I don't know much about this, but you
might do better with the current released version, 1.10.2.  I don't know
if a suitable binary kit is generally available, but if you can't find
one, and you can't build it from the source, I can build one on Solaris
10, if you think that that might be useful.



  Steven M. Schweda   [EMAIL PROTECTED]
  382 South Warwick Street(+1) 651-699-9818
  Saint Paul  MN  55105-2547
 





Re: Using wget through FTP proxy server

2007-10-24 Thread Alan Watt
I loaded the latest Sun Freeware wget package (1.10.2) for Solaris 8 on 
a test server; got the same results.


Steven M. Schweda wrote:


From: Alan Watt

 


I'm using wget version 1.9.1 for Solaris 8 (SPARC). [...]
   



  I don't deal with proxies, so I don't know much about this, but you
might do better with the current released version, 1.10.2.  I don't know
if a suitable binary kit is generally available, but if you can't find
one, and you can't build it from the source, I can build one on Solaris
10, if you think that that might be useful.



  Steven M. Schweda   [EMAIL PROTECTED]
  382 South Warwick Street(+1) 651-699-9818
  Saint Paul  MN  55105-2547
 





Re: Using wget through FTP proxy server

2007-10-24 Thread Micah Cowan
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Alan Watt wrote:
 [ CC to [EMAIL PROTECTED] ]
 
 I have a need to use wget through an FTP proxy server and every
 combination of proxy options I have tried has failed.  By capturing
 packets I have verified that wget never sends the
 proxy-user/proxy-password information.
 
 What I see is wget opening an FTP connection to the proxy gateway, but
 not attempting to log in as the proxy user.  Instead it tries to
 authenticate as the remote user immediately.
 
 The specific type of FTP proxy I need to use is what WS-FTP pro and
 CoreFTP refer to as send USER after logon.  The  proxy gateway in
 question wants to get the proxy-user/proxy-password supplied initially,
 followed by a USER remote-user@remote-host command to connect to
 the actual remote FTP system.
 
 Here is what I have tried:
 
1. Setting ftp_proxy to
   ftp://proxy-user:proxy-password@proxy-server in .wgetrc. 
2. Setting ftp-proxy to same as above in .wgetrc
3. Setting proxy-user, proxy_user, proxy-passwd, proxy_passwd
   appropriately in .wgetrc.
4. Setting the command-line option equivalents for all the above.
 
 No matter what I do, the only part of the proxy information wget pays
 any attention to is the proxy server address.

After looking through the relevant source code, it looks like proxy
authentication is only supported for HTTP proxies, and not FTP. I'll
file a bug.

It would be useful to know what software is being used as the FTP proxy,
so we can test against it.

There are two bugs here, actually: one is lack of support for
authentication with FTP proxies (feature request), the other is that
it's not clearly documented that proxy-user/proxy-password only apply to
HTTP proxies.

Can anyone tell me offhand, does Wget currently support the use of HTTP
proxies for fetching FTP resources (GET ftp://foo/ HTTP/1.1)? It looks
to me like the answer is no; if so, that should be filed as well.

- --
Micah J. Cowan
Programmer, musician, typesetting enthusiast, gamer...
http://micah.cowan.name/
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