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Bug#441469: marked as done ([methods/ftp] attempts to download known-nonexistent files?)

Your message dated Sat, 24 May 2025 17:54:06 +0200
with message-id <5a38147b-a8e3-4c60-bc04-8455cd291750@wp.pl>
and subject line Re: Bug#441469: [methods/ftp] attempts to download known-nonexistent files?
has caused the Debian Bug report #441469,
regarding [methods/ftp] attempts to download known-nonexistent files?
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
441469: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=441469
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: apt
Version: 0.7.6
Severity: minor

While debugging a problem with my ftp server not correctly handling
successive EPSV commands without a succesful intervening RETR, I've noticed
that apt's ftp method attempts to download files even if the server has
already indicated that the file doesn't exist (in this case, triggering a bug
in proftpd).

>From apt-get update -o Debug::Acquire::Ftp=true:

<- 'ProFTPD%201.3.0%20Server%20(Debian)%20[2001:4830:1244:0:209:5bff:feb6:9284]%0d%0a'
-> 'USER%20anonymous%0d%0a'
<- 'Anonymous%20login%20ok,%20send%20your%20complete%20email%20address%20as%20your%20password.%0d%0a'
-> 'PASS%20apt_get_ftp_2.1@debian.linux.user%0d%0a'
<- 'Anonymous%20access%20granted,%20restrictions%20apply.%0d%0a'
-> 'TYPE%20I%0d%0a'
<- 'Type%20set%20to%20I%0d%0a'
-> 'SIZE%20/debian/dists/unstable/Release.gpg%0d%0a'
<- '189%0d%0a'
-> 'MDTM%20/debian/dists/unstable/Release.gpg%0d%0a'
<- '20021023211358%0d%0a'
-> 'EPSV%0d%0a'
<- 'Entering%20Extended%20Passive%20Mode%20(|||2856|)%0d%0a'
-> 'RETR%20/debian/dists/unstable/Release.gpg%0d%0a'
<- 'Opening%20BINARY%20mode%20data%20connection%20for%20/debian/dists/unstable/Release.gpg%20(189%20bytes)%0d%0a'
<- 'Transfer%20complete.%0d%0a'
-> 'SIZE%20/debian/dists/unstable/local/i18n/Translation-en_US.bz2%0d%0a'
<- '/debian/dists/unstable/local/i18n/Translation-en_US.bz2:%20No%20such%20file%20or%20directory%0d%0a'
-> 'MDTM%20/debian/dists/unstable/local/i18n/Translation-en_US.bz2%0d%0a'
<- '/debian/dists/unstable/local/i18n/Translation-en_US.bz2:%20No%20such%20file%20or%20directory%0d%0a'
-> 'EPSV%0d%0a'
<- 'Entering%20Extended%20Passive%20Mode%20(|||2461|)%0d%0a'
-> 'RETR%20/debian/dists/unstable/local/i18n/Translation-en_US.bz2%0d%0a'
<- '/debian/dists/unstable/local/i18n/Translation-en_US.bz2:%20No%20such%20file%20or%20directory%0d%0a'
-> 'SIZE%20/debian/dists/unstable/Release%0d%0a'
<- '1863%0d%0a'
-> 'MDTM%20/debian/dists/unstable/Release%0d%0a'
<- '20021023211334%0d%0a'
-> 'SIZE%20/debian/dists/unstable/Release%0d%0a'
<- '1863%0d%0a'
-> 'MDTM%20/debian/dists/unstable/Release%0d%0a'
<- '20021023211334%0d%0a'
-> 'EPSV%0d%0a'
<- 'Entering%20Extended%20Passive%20Mode%20(|||2461|)%0d%0a'
-> 'RETR%20/debian/dists/unstable/Release%0d%0a'
<- 'Opening%20BINARY%20mode%20data%20connection%20for%20/debian/dists/unstable/Release%20(1863%20bytes)%0d%0a'
<- 'Transfer%20complete.%0d%0a'
-> 'SIZE%20/debian/dists/unstable/local/binary-i386/Packages.bz2%0d%0a'
<- '/debian/dists/unstable/local/binary-i386/Packages.bz2:%20No%20such%20file%20or%20directory%0d%0a'
-> 'MDTM%20/debian/dists/unstable/local/binary-i386/Packages.bz2%0d%0a'
<- '/debian/dists/unstable/local/binary-i386/Packages.bz2:%20No%20such%20file%20or%20directory%0d%0a'
-> 'EPSV%0d%0a'
<- 'Entering%20Extended%20Passive%20Mode%20(|||1950|)%0d%0a'
-> 'RETR%20/debian/dists/unstable/local/binary-i386/Packages.bz2%0d%0a'
<- '/debian/dists/unstable/local/binary-i386/Packages.bz2:%20No%20such%20file%20or%20directory%0d%0a'
-> 'SIZE%20/debian/dists/unstable/local/binary-i386/Packages.gz%0d%0a'
<- '5450%0d%0a'
-> 'MDTM%20/debian/dists/unstable/local/binary-i386/Packages.gz%0d%0a'
<- '20021023211331%0d%0a'
-> 'EPSV%0d%0a'
<- 'Entering%20Extended%20Passive%20Mode%20(|||1950|)%0d%0a'
-> 'RETR%20/debian/dists/unstable/local/binary-i386/Packages.gz%0d%0a'
<- 'Opening%20BINARY%20mode%20data%20connection%20for%20/debian/dists/unstable/local/binary-i386/Packages.gz%20(5450%20bytes)%0d%0a'
<- 'Transfer%20complete.%0d%0a'

Perhaps the ftp method could be smartened up a bit to not attempt further
operations on a remote file if it gets a 550 response code?

Cheers,
-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
vorlon@debian.org                                   http://www.debian.org/

--- End Message ---
--- Begin Message --- 
Version: 2.9.11

Hi!

This ticket is related to ftp method.

As indicated in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=200272#21,
ftp method is no longer supported.

Therefore I'm closing this ticket.

Kamil

--- End Message ---
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