package ftp; # $Id$ use Net::FTP; use network::network; use log; my %hosts; 1; sub fromEnv() { #- now URLPREFIX is generated from what is given by mdk-stage1 which is only this 4 variables. $ENV{URLPREFIX} = "ftp://" . ($ENV{LOGIN} && ($ENV{LOGIN} . ($ENV{PASSWORD} && ":$ENV{PASSWORD}") . '@')) . "$ENV{HOST}/$ENV{PREFIX}"; @ENV{qw(HOST PREFIX LOGIN PASSWORD)}; } sub new { my ($host, $prefix, $o_login, $o_password) = @_; my @l = do { if ($hosts{"$host$prefix"}) { @{$hosts{"$host$prefix"}}; } else { my %options = (Passive => 1, Timeout => 60, Port => 21); $options{Firewall} = $ENV{PROXY} if $ENV{PROXY}; $options{Port} = $ENV{PROXYPORT} if $ENV{PROXYPORT}; unless ($o_login) { $o_login = 'anonymous'; $o_password = '-drakx@'; } my $ftp; foreach (1..10) { $ftp = Net::FTP->new(resolv($host), %options) or die; $ftp && $ftp->login($o_login, $o_password) and last; log::l("ftp login failed, sleeping before trying again"); sleep 5 * $_; } $ftp or die "unable to open ftp connection to $host"; $ftp->binary; $ftp->cwd($prefix); my @l = ($ftp, \ (my $_retr)); $hosts{"$host$prefix"} = \@l; @l; } }; wantarray() ? @l : $l[0]; } sub getFile { my ($f, @para) = @_; $f eq 'XXX' and rewindGetFile(), return; #- special case to force closing connection. foreach (1..3) { my ($ftp, $retr) = new(@para ? @para : fromEnv()); eval { $$retr->close if $$retr }; $@ and rewindGetFile(); #- in case Timeout got us on "->close" $$retr = $ftp->retr($f) and return $$retr; $ftp->code == 550 and log::l("FTP: 550 file unavailable"), return; rewindGetFile(); log::l("ftp get failed, sleeping before trying again"); sleep 1; } } #-sub closeFiles() { #- #- close any existing connections #- foreach (values %hosts) { #- my $retr = $_->[1] if ref $_; #- $$retr->close if $$retr; #- undef $$retr; #- } #-} sub rewindGetFile() { #- close any existing connection. foreach (values %hosts) { my ($ftp, $retr) = @{$_ || []}; #- don't let Timeout kill us! eval { $$retr->close } if $$retr; eval { $ftp->close } if $ftp; } #- make sure to reconnect to server. %hosts = (); } e>
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