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alien |
3078 |
#!/usr/bin/perl -w |
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## written by Maarten Vanraes (c) 2009-2011 |
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## urpmi-proxy is GPLv2+ |
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use strict; |
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use warnings; |
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my $debug = 0; |
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my $config_file = '/etc/urpmi-proxy.conf'; |
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# config defaults |
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my $cache_tmp_path = '/var/tmp/urpmi-proxy'; |
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my $cache_path = '/var/cache/urpmi-proxy'; |
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my $logfile = '/var/log/urpmi-proxy.log'; |
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my $check_updates_only_files = 'MD5SUM'; |
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my $check_no_updates_files; |
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my $merge_files = 'media.cfg'; |
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my $sources = [ |
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'urpmi' |
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]; |
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my $connect_timeout = 120; |
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my $ftp_response_timeout = 30; |
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my $max_stall_speed = 8192; |
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my $max_stall_time = 60; |
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# load config file |
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if (-R $config_file) { |
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my $r = open(FILE, '<', $config_file); |
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if ($r) { |
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my $l = ''; |
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while (<FILE>) { |
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$l .= $_; |
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} |
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eval $l; |
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close FILE; |
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} |
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} |
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print STDERR "logfile: $logfile\n" if $debug; |
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my $sou; |
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print STDERR "orig sources: " . scalar(@$sources) . "\n" if $debug; |
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if ($debug) { |
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foreach $sou (@$sources) { |
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print STDERR " - " . $sou . "\n"; |
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} |
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} |
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# prepare cache path |
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system("mkdir -p $cache_tmp_path"); |
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# check for valid request |
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my $file = $ENV{PATH_INFO}; |
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return_error(500, 'Server error') if !$file; |
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# split up request |
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return_error(500, 'Server error') if $file !~ m!^(.+)/([^/]*)$!; |
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my $dest_path = $1; |
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my $filename = $2; |
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my $file_type = ""; |
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my $merge = 0; |
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print STDERR "file: $file\n" if $debug; |
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print STDERR "dest_path: $dest_path\n" if $debug; |
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print STDERR "filename: $filename\n" if $debug; |
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# check if request needs update checking |
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my $check_file = 1; |
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$check_file = 0 if defined $check_no_updates_files && $filename =~ m/$check_no_updates_files/; |
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if (defined $check_updates_only_files) { |
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$check_file = 0; |
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$check_file = 1 if $filename =~ m/$check_updates_only_files/; |
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} |
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# check if request needs merging |
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$merge = 1 if $filename =~ m/$merge_files/; |
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$check_file = 1 if $merge; |
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print STDERR "check_file: $check_file\n" if $debug; |
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print STDERR "merge: $merge\n" if $debug; |
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# if the file needs no update checks, check in cache |
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return_file($cache_path, $file, $logfile, 'CACHED_NO_CHECK') if (!$check_file && $filename && -R $cache_path . $file); |
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# get datetime from local file if it exists |
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my $timestamp = 0; |
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if ($filename && !$check_file && -R $cache_path . $file) { |
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my @sv = lstat($cache_path . $file); |
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$timestamp = $sv[9]; |
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print STDERR "timestamp: $timestamp\n" if $debug; |
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} |
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# set up curl with timecheck |
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my $curl; |
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my $r = 0; |
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my $file_sent = 0; |
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#my $file_deleted = 0; |
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my $file_unmodified = 0; |
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my $file_time = -1; |
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my $err = 200; |
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# prepare curl transfer |
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my $tmp_file = $cache_tmp_path . "/" . rand() . $$; |
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open(FILEHANDLE, ">", $tmp_file) or do { |
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_log($logfile, $file, 500, 'MISS'); |
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return_error(500, 'Server error'); |
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}; |
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binmode(FILEHANDLE); |
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my %curldata = (fh => \*FILEHANDLE, file_sent => \$file_sent, content_type => $file_type, size => -1, merge => \$merge); |
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print STDERR "sources: " . scalar(@$sources) . "\n" if $debug; |
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if ($debug) { |
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foreach $sou (@$sources) { |
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print STDERR " - " . $sou . "\n"; |
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} |
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} |
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# filter out duplicate sources (and expand urpmi) |
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my @sources; |
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my %seen; |
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foreach my $s (@$sources) { |
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# heh |
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next if $seen{$s}++; |
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if ($s eq "urpmi") { |
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# urpmi support is required |
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use urpm; |
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use urpm::cfg; |
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my $urpm = new urpm(); |
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urpm::get_global_options($urpm); |
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my $config = urpm::cfg::load_config($urpm->{config}); |
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my %s; |
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foreach my $media (@{$config->{media}}) { |
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if (!$media->{ignore}) { |
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if ($media->{mirrorlist} && !($seen{'mirrorlist:' . $media->{mirrorlist}}++)) { |
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# push mirrorlists now so they'll be first |
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push @sources, 'mirrorlist://' . $media->{mirrorlist}; |
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} |
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elsif ($media->{url} && !($seen{$media->{url}}++)) { |
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$s{$media->{url}} = 1; |
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} |
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} |
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} |
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# push the urls |
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push @sources, keys %s if scalar(keys %s); |
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} |
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else { |
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push @sources, $s; |
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} |
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} |
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# check for source |
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print STDERR "interpolated sources: " . scalar(@sources) . "\n" if $debug; |
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if ($debug) { |
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foreach $sou (@sources) { |
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print STDERR " - " . $sou . "\n"; |
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} |
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} |
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foreach my $source (@sources) { |
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my ($type, @loc) = split('://', $source); |
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my $loc = join('://', @loc); |
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print STDERR "source of type $type: '" . $source . "'\n" if $debug; |
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if ($type eq 'mirrorlist') { |
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# get exact url from cache and parse |
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my $res = open(FILE, '<', '/var/cache/urpmi/mirrors.cache'); |
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if ($res) { |
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my $mirrorcache = ''; |
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while (<FILE>) { |
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$mirrorcache .= $_; |
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} |
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close FILE; |
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my $host_loc = $loc; |
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$host_loc =~ s/\$/\\\$/g; |
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if ($mirrorcache =~ m/'$host_loc'\s+=>\s+{[\r\n]+\s+'chosen'\s+=>\s+'([^']+)'/m) { |
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$source = $1; |
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# rectify source to remove '/distrib/version/arch' |
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$source =~ s!/[^/]+/[^/]+/[^/]+$!!; |
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print STDERR "mirrorlist returns source '$source'\n" if $debug; |
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($type, @loc) = split('://', $source); |
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$loc = join('://', @loc); |
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if (defined $type) { |
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print STDERR "mirrorlist returns type $type: '" . $source . "'\n" if $debug; |
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} |
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else { |
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print STDERR "transfer error: mirrorlist is no url '" . $source . "'.\n" if $debug; |
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$type = ''; |
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} |
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} |
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else { |
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print STDERR "transfer error: mirrorlist has no chosen url '" . $source . "'.\n" if $debug; |
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$type = ''; |
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} |
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} |
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else { |
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print STDERR "transfer error: couldn't open mirrorlist cache.\n" if $debug; |
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} |
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} |
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if ($type eq 'rsync') { |
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# find the equivalent ftp mirror location by hostname |
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my $res = open(FILE, '<', '/var/cache/urpmi/mirrors.cache'); |
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if ($res) { |
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my $mirrorcache = ''; |
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while (<FILE>) { |
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$mirrorcache .= $_; |
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} |
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close FILE; |
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my $loc_host = $loc; |
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$loc_host =~ s!/.+!!; |
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if ($mirrorcache =~ m!'url'\s+=>\s+'((ftp|http)://$loc_host/[^']+)'!) { |
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$source = $1; |
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# rectify source to remove '/distrib/version/arch' |
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$source =~ s!/[^/]+/[^/]+/[^/]+$!!; |
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print STDERR "rsync switch returns source '$source'\n" if $debug; |
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($type, @loc) = split('://', $source); |
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$loc = join('://', @loc); |
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if (defined $type) { |
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print STDERR "rsync switch returns type $type: '" . $source . "'\n" if $debug; |
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} |
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else { |
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print STDERR "transfer error: rsync switch is no url '" . $source . "'.\n" if $debug; |
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$type = ''; |
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} |
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} |
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else { |
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print STDERR "transfer error: rsync switch has no suitable url '" . $source . "'.\n" if $debug; |
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$type = ''; |
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} |
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} |
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else { |
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print STDERR "transfer error: couldn't open mirrorlist cache.\n" if $debug; |
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} |
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} |
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if ($type eq 'file') { |
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if ($filename && -R $loc . $file) { |
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my $ft = `file -b --mime-type $loc$file`; |
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$ft =~ s/[\s\r\n]*$//; |
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print STDERR "mimetype: '$ft'\n" if $debug; |
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print STDERR "size: " . (-s $loc . $file) . "\n" if $debug; |
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$r = open(FILE, "<", $loc . $file); |
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if ($r) { |
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print STDERR "file fetch url '" . $loc . $file . "'\n" if $debug; |
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if (!$file_sent) { |
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$file_sent = 1; |
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print "Content-Type: " . $ft . "\r\n"; |
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print "Content-Length: " . (-s $loc . $file) . "\r\n" if !$merge; |
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print "\r\n"; |
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} |
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binmode(FILE); |
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my $buf; |
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while (read(FILE, $buf, 1024)) { |
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print FILEHANDLE $buf; |
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print $buf; |
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} |
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close FILE; |
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$r = 0; |
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} |
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else { |
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print STDERR "transfer error: couldn't open file '" . $loc . $file . "'.\n" if $debug; |
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$r = 1; |
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$err = 404; |
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} |
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} |
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else { |
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print STDERR "transfer error: couldn't read file '" . $loc . $file . "'.\n" if $debug; |
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} |
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} |
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elsif ($type) { |
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if (!defined $curl) { |
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use WWW::Curl::Easy; |
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# set up curl stuff |
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$curl = new WWW::Curl::Easy; |
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if ($timestamp > 0) { |
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$curl->setopt(CURLOPT_TIMECONDITION, 1); # CURL_TIMECOND_IFMODSINCE |
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$curl->setopt(CURLOPT_TIMEVALUE, $timestamp); |
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} |
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$curl->setopt(CURLOPT_CONNECTTIMEOUT, $connect_timeout); |
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$curl->setopt(CURLOPT_FTP_RESPONSE_TIMEOUT, $ftp_response_timeout); |
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$curl->setopt(CURLOPT_LOW_SPEED_LIMIT, $max_stall_speed); |
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$curl->setopt(CURLOPT_LOW_SPEED_TIME, $max_stall_time); |
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$curl->setopt(CURLOPT_FOLLOWLOCATION, 1); |
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$curl->setopt(CURLOPT_FILETIME, 1); |
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# hook curl transfer functions for local caching |
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$curl->setopt(CURLOPT_WRITEDATA, \%curldata); |
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$curl->setopt(CURLOPT_WRITEFUNCTION, \&write_function); |
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$curl->setopt(CURLOPT_WRITEHEADER, \%curldata); |
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$curl->setopt(CURLOPT_HEADERFUNCTION, \&header_function); |
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} |
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# depending on type check if remote file is newer |
287 |
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print STDERR "curl fetch url '" . $source . $file . "'\n" if $debug; |
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$curl->setopt(CURLOPT_URL, $source . $file); |
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$r = $curl->perform; |
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print STDERR "curl return value: " . $err . "\n" if $debug; |
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# use curl to get it and output it directly |
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if ($r == 0) { |
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$err = $curl->getinfo(CURLINFO_HTTP_CODE); |
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if ($err =~ m/^2/ || $err == 304) { |
295 |
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if ($curl->getinfo(CURLINFO_CONDITION_UNMET)) { |
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$file_unmodified = 1; |
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} |
298 |
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$file_time = $curl->getinfo(CURLINFO_FILETIME); |
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} |
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else { |
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# error stuff ? |
302 |
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print STDERR "transfer error: http code " . $err . "\n" if $debug; |
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} |
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} |
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else { |
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# error stuff ? |
307 |
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print STDERR "transfer error: " . $curl->strerror($r) . " ($r)\n" if $debug; |
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} |
309 |
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} |
310 |
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else { |
311 |
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print STDERR "transfer error: this source does not have a type\n" if $debug; |
312 |
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} |
313 |
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last if $file_sent && !$merge; |
314 |
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} |
315 |
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316 |
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my $extra = ''; |
317 |
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318 |
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close(FILEHANDLE); |
319 |
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320 |
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if ($file_sent && $r == 0 && $err =~ m/^2/ && $filename) { |
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# clean up file and move to correct location |
322 |
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if (system("mkdir -p $cache_path$dest_path") == 0) { |
323 |
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if (rename($tmp_file, $cache_path . $file)) { |
324 |
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utime(time(), $file_time, $cache_path . $file) if $file_time > 0; |
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} |
326 |
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else { |
327 |
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print STDERR "WARNING: file '$tmp_file' could not be moved to '$cache_path$file'\n"; |
328 |
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} |
329 |
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} |
330 |
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else { |
331 |
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print STDERR "WARNING: containing path for '$cache_path$file' could not be created\n"; |
332 |
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} |
333 |
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_log($logfile, $file, 200, 'MISS'); |
334 |
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} |
335 |
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else { |
336 |
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unlink($tmp_file); |
337 |
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if ($file_sent) { |
338 |
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if ($filename) { |
339 |
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_log($logfile, $file, $err, 'MISS_FAIL_SENT'); |
340 |
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} |
341 |
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else { |
342 |
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# It was actually successful, but paths can't be saved... |
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print STDERR "NOTICE: paths cant be saved: '$file'\n" if $debug; |
344 |
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_log($logfile, $file, $err, 'MISS'); |
345 |
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} |
346 |
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exit 0; |
347 |
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} |
348 |
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$extra = '_UNMODIFIED' if $file_unmodified; |
349 |
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return_file($cache_path, $file, $logfile, 'HIT_AFTER_FAIL' . $extra) if $filename && -R $cache_path . $file; |
350 |
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_log($logfile, $file, 404, 'MISS_FAIL'); |
351 |
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return_error(404, 'File not found'); |
352 |
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} |
353 |
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354 |
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print STDERR "finished." if $debug; |
355 |
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356 |
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exit 0; |
357 |
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358 |
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sub header_function { |
359 |
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my ($ptr, $data) = @_; |
360 |
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if (!${$data->{file_sent}}) { |
361 |
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$data->{http_header} = $1 if $ptr =~ m!^HTTP/[0-9.]+\s+(.+?)[\s\r\n]*$!; |
362 |
|
|
$data->{content_type} = $1 if $ptr =~ m/^Content-[tT]ype:\s+(.+?)[\s\r\n]*$/; |
363 |
|
|
$data->{size} = $1 if $ptr =~ m/^Content-[lL]ength:\s+(.+?)[\s\r\n]*$/; |
364 |
|
|
$data->{size} = $1 if $ptr =~ m/^213\s+(.+?)[\s\r\n]*$/; |
365 |
|
|
} |
366 |
|
|
return length($ptr); |
367 |
|
|
} |
368 |
|
|
|
369 |
|
|
sub write_function { |
370 |
|
|
my ($ptr, $data) = @_; |
371 |
|
|
my $f = ${$data->{fh}}; |
372 |
|
|
print $f ($ptr); |
373 |
|
|
if (!${$data->{file_sent}}) { |
374 |
|
|
${$data->{file_sent}} = 1; |
375 |
|
|
print STDERR "HTTP header: " . $data->{http_header} . "\n" if $debug && defined $data->{http_header}; |
376 |
|
|
print STDERR "Content-Type: " . $data->{content_type} . "\n" if $debug && defined $data->{content_type}; |
377 |
|
|
print STDERR "Content-Length: " . $data->{size} . "\n" if $debug; |
378 |
|
|
print "Status: " . $data->{http_header} . "\r\n" if $data->{http_header} && $data->{http_header} !~ m/^2/; |
379 |
|
|
print "Content-Type: " . $data->{content_type} . "\r\n" if $data->{content_type}; |
380 |
|
|
print "Content-Length: " . $data->{size} . "\r\n" if $data->{size} > -1 && !${$data->{merge}}; |
381 |
|
|
print "\r\n"; |
382 |
|
|
} |
383 |
|
|
print $ptr; |
384 |
|
|
return length($ptr); |
385 |
|
|
} |
386 |
|
|
|
387 |
|
|
sub _log { |
388 |
|
|
my ($logfile, $file, $code, $cached) = @_; |
389 |
|
|
my $date = `date`; |
390 |
|
|
$date =~ s/[\s\r\n]*$//; |
391 |
|
|
open(FILE, ">>" . $logfile) or return; |
392 |
|
|
print FILE "[" . $date . "] $file - $code - $cached\n"; |
393 |
|
|
close(FILE); |
394 |
|
|
} |
395 |
|
|
|
396 |
|
|
sub return_file { |
397 |
|
|
my ($cache_path, $file, $logfile, $cached)=@_; |
398 |
|
|
open(FILE, "<", $cache_path . $file) or do { |
399 |
|
|
_log($logfile, $file, 500, $cached); |
400 |
|
|
return_error(500, 'Server error'); |
401 |
|
|
}; |
402 |
|
|
my $ft = `file -b --mime-type $cache_path$file`; |
403 |
|
|
$ft =~ s/[\s\r\n]*$//; |
404 |
|
|
print STDERR "mimetype: '$ft'\n" if $debug; |
405 |
|
|
print STDERR "size: " . (-s $cache_path . $file) . "\n" if $debug; |
406 |
|
|
print "Content-Type: " . $ft . "\r\n"; |
407 |
|
|
print "Content-Length: " . (-s $cache_path . $file) . "\r\n\r\n"; |
408 |
|
|
binmode(FILE); |
409 |
|
|
my $buf; |
410 |
|
|
while (read(FILE, $buf, 1024)) { |
411 |
|
|
print $buf; |
412 |
|
|
} |
413 |
|
|
close FILE; |
414 |
|
|
_log($logfile, $file, 200, $cached); |
415 |
|
|
exit 0; |
416 |
|
|
} |
417 |
|
|
|
418 |
|
|
sub return_error { |
419 |
|
|
my ($code, $text) = @_; |
420 |
|
|
print "Status: $code $text\r\n\r\n"; |
421 |
|
|
print STDERR "$code $text.\n" if $debug; |
422 |
|
|
exit 0; |
423 |
|
|
} |