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apt-mirror
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apt-mirror
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#!/usr/bin/perl
=pod
=head1 NAME
apt-mirror - apt sources mirroring tool
=head1 SYNOPSIS
apt-mirror [--[no-]progress] [--verbose] [configfile]
=head1 DESCRIPTION
A small and efficient tool that lets you mirror a part of or
the whole Debian GNU/Linux distribution or any other apt sources.
Main features:
=over
=item *
It uses a config similar to APT's F<sources.list>
=item *
It's fully pool compliant
=item *
It supports multithreaded downloading
=item *
It supports multiple architectures at the same time
=item *
It can automatically remove unneeded files
=item *
It works well on an overloaded Internet connection
=item *
It never produces an inconsistent mirror including while mirroring
=item *
It works on all POSIX compliant systems with Perl and wget
=back
=head1 COMMENTS
apt-mirror uses F</etc/apt/mirror.list> as a configuration file.
By default it is tuned to official Debian or Ubuntu mirrors. Change
it for your needs.
After you setup the configuration file you may run as root:
# su - apt-mirror -c apt-mirror
Or uncomment the line in F</etc/cron.d/apt-mirror> to enable daily mirror updates.
=head1 FILES
F</etc/apt/mirror.list>
Main configuration file
F</etc/cron.d/apt-mirror>
Cron configuration template
F</var/spool/apt-mirror/mirror>
Mirror places here
F</var/spool/apt-mirror/skel>
Place for temporarily downloaded indexes
F</var/spool/apt-mirror/var>
Log files placed here. URLs and MD5 checksums also here.
=head1 CONFIGURATION EXAMPLES
The mirror.list configuration supports many options, the file is well commented explaining each option.
Here are some sample mirror configuration lines showing the various supported ways:
Normal:
deb http://example.com/debian stable main contrib non-free
Arch Specific: (many other architectures are supported)
deb-powerpc http://example.com/debian stable main contrib non-free
HTTP and FTP Auth or non-standard port:
deb http://user:pass@example.com:8080/debian stable main contrib non-free
HTTPS with sending Basic HTTP authentication information (plaintext username and password) for all requests:
(this was default behaviour of Wget 1.10.2 and prior and is needed for some servers with new version of Wget)
set auth_no_challenge 1
deb https://user:pass@example.com:443/debian stable main contrib non-free
HTTPS without checking certificate:
set no_check_certificate 1
deb https://example.com:443/debian stable main contrib non-free
Source Mirroring:
deb-src http://example.com/debian stable main contrib non-free
=head1 AUTHORS
Dmitry N. Hramtsov E<lt>hdn@nsu.ruE<gt>
Brandon Holtsclaw E<lt>me@brandonholtsclaw.comE<gt>
=cut
use warnings;
use strict;
use File::Copy;
use File::Compare;
use File::Path qw(make_path);
use File::Basename;
use Fcntl qw(:flock);
use Getopt::Long;
my $config_file;
my %config_variables = (
"defaultarch" => `dpkg --print-architecture 2>/dev/null` || 'i386',
"nthreads" => 20,
"base_path" => '/var/spool/apt-mirror',
"mirror_path" => '$base_path/mirror',
"skel_path" => '$base_path/skel',
"var_path" => '$base_path/var',
"cleanscript" => '$var_path/clean.sh',
"_contents" => 1,
"_autoclean" => 0,
"_tilde" => 0,
"limit_rate" => '100m',
"run_postmirror" => 1,
"auth_no_challenge" => 0,
"no_check_certificate" => 0,
"no_verbose" => 0,
"unlink" => 0,
"postmirror_script" => '$var_path/postmirror.sh',
"use_proxy" => 'off',
"http_proxy" => '',
"https_proxy" => '',
"proxy_user" => '',
"proxy_password" => ''
);
my @config_binaries = ();
my @config_sources = ();
my @index_urls;
my @childrens = ();
my %skipclean = ();
my %clean_directory = ();
my $verbose = 0;
my $progress = 1;
######################################################################################
## Setting up $config_file variable
$config_file = "/etc/apt/mirror.list"; # Default value
GetOptions('verbose|v+', \$verbose,
'progress|p!', \$progress,
) or die "Usage: apt-mirror [--verbose] [--[no-]progress] [configfile]\n";
if ( $_ = shift )
{
die("apt-mirror: invalid config file specified") unless -e $_;
$config_file = $_;
}
chomp $config_variables{"defaultarch"};
######################################################################################
## Common subroutines
sub round_number
{
my $n = shift;
my $minus = $n < 0 ? '-' : '';
$n = abs($n);
$n = int( ( $n + .05 ) * 10 ) / 10;
$n .= '.0' unless $n =~ /\./;
$n .= '0' if substr( $n, ( length($n) - 1 ), 1 ) eq '.';
chop $n if $n =~ /\.\d\d0$/;
return "$minus$n";
}
sub format_bytes
{
my $bytes = shift;
my $bytes_out = '0';
my $size_name = 'bytes';
my $KiB = 1024;
my $MiB = 1024 * 1024;
my $GiB = 1024 * 1024 * 1024;
if ( $bytes >= $KiB )
{
$bytes_out = $bytes / $KiB;
$size_name = 'KiB';
if ( $bytes >= $MiB )
{
$bytes_out = $bytes / $MiB;
$size_name = 'MiB';
if ( $bytes >= $GiB )
{
$bytes_out = $bytes / $GiB;
$size_name = 'GiB';
}
}
$bytes_out = round_number($bytes_out);
}
else
{
$bytes_out = $bytes;
$size_name = 'bytes';
}
return "$bytes_out $size_name";
}
sub get_variable
{
my $value = $config_variables{ shift @_ };
my $count = 16;
while ( $value =~ s/\$(\w+)/$config_variables{$1}/xg )
{
die("apt-mirror: too many substitution while evaluating variable") if ( $count-- ) < 0;
}
return $value;
}
sub quoted_path
{
my $path = shift;
$path =~ s/'/'\\''/g;
return "'" . $path . "'";
}
sub lock_aptmirror
{
open( LOCK_FILE, '>', get_variable("var_path") . "/apt-mirror.lock" );
my $lock = flock( LOCK_FILE, LOCK_EX | LOCK_NB );
if ( !$lock )
{
die("apt-mirror is already running, exiting");
}
}
sub unlock_aptmirror
{
close(LOCK_FILE);
unlink( get_variable("var_path") . "/apt-mirror.lock" );
}
sub download_urls
{
my $stage = shift;
my @urls;
my $i = 0;
my $pid;
my $nthreads = get_variable("nthreads");
my @args = ();
local $| = 1;
@urls = @_;
$nthreads = @urls if @urls < $nthreads;
if ( get_variable("auth_no_challenge") == 1 ) { push( @args, "--auth-no-challenge" ); }
if ( get_variable("no_check_certificate") == 1 ) { push( @args, "--no-check-certificate" ); }
if ( get_variable("no_verbose") == 1 ) { push( @args, "--no-verbose" ); }
if ( get_variable("unlink") == 1 ) { push( @args, "--unlink" ); }
if ( length( get_variable("use_proxy") ) && ( get_variable("use_proxy") eq 'yes' || get_variable("use_proxy") eq 'on' ) )
{
if ( length( get_variable("http_proxy") ) || length( get_variable("https_proxy") ) ) { push( @args, "-e use_proxy=yes" ); }
if ( length( get_variable("http_proxy") ) ) { push( @args, "-e http_proxy=" . get_variable("http_proxy") ); }
if ( length( get_variable("https_proxy") ) ) { push( @args, "-e https_proxy=" . get_variable("https_proxy") ); }
if ( length( get_variable("proxy_user") ) ) { push( @args, "-e proxy_user=" . get_variable("proxy_user") ); }
if ( length( get_variable("proxy_password") ) ) { push( @args, "-e proxy_password=" . get_variable("proxy_password") ); }
}
print "Downloading " . scalar(@urls) . " $stage files using $nthreads threads...\n";
while ( scalar @urls )
{
my @part = splice( @urls, 0, int( @urls / $nthreads ) );
open URLS, ">" . get_variable("var_path") . "/$stage-urls.$i" or die("apt-mirror: can't write to intermediate file ($stage-urls.$i)");
foreach (@part) { print URLS "$_\n"; }
close URLS or die("apt-mirror: can't close intermediate file ($stage-urls.$i)");
if ($verbose >= 2) {
print join("\n ", "Downloading batch $i:", @part), "\n";
}
$pid = fork();
die("apt-mirror: can't do fork in download_urls") if !defined($pid);
if ( $pid == 0 )
{
system('wget', '--no-cache',
'--limit-rate=' . get_variable("limit_rate"),
'-t', '5', '-r', '-N', '-l', 'inf', '--no-check-certificate',
'-o', get_variable("var_path") . "/$stage-log.$i",
'-i', get_variable("var_path") . "/$stage-urls.$i", @args);
die("Could not run wget, please make sure it is installed and in your path\n")
if $? == -1;
my $exit_status = $? >> 8;
if ( $exit_status ) {
if ( $stage eq 'archive' || $exit_status < 8 ) {
# wget exit code 8 is "server error response". This is normal for downloading indices where we try
# to download .gz, .xz and .bz2 and don't care about some of them returning 404. For package
# download, this is probably a real problem which should be investigated.
print "wget failed with exit status $exit_status. See ",
get_variable("var_path") . "/$stage-log.$i", " for details.\n";
exit ($exit_status);
}
}
# child is done
exit (0);
}
push @childrens, $pid;
$i++;
$nthreads--;
}
print "Begin time: " . localtime() . "\n[" . scalar(@childrens) . "]... "
if $progress;
while ( scalar @childrens )
{
my $dead = wait();
@childrens = grep { $_ != $dead } @childrens;
print "[" . scalar(@childrens) . "]... "
if $progress;
}
print "\nEnd time: " . localtime() . "\n\n"
if $progress;
}
## Parse config
sub parse_config_line
{
my $pattern_deb_line = qr/^[\t ]*(?<type>deb-src|deb)(?:-(?<arch>[\w\-]+))?[\t ]+(?:\[(?<options>[^\]]+)\][\t ]+)?(?<uri>[^\s]+)[\t ]+(?<components>.+)$/;
my $line = $_;
my %config;
if ( $line =~ $pattern_deb_line ) {
$config{'type'} = $+{type};
$config{'arch'} = $+{arch};
$config{'options'} = $+{options} ? $+{options} : "";
$config{'uri'} = $+{uri};
$config{'components'} = $+{components};
if ( $config{'options'} =~ /arch=((?<arch>[\w\-]+)[,]*)/g ) {
$config{'arch'} = $+{arch};
}
$config{'components'} = [ split /\s+/, $config{'components'} ];
} elsif ( $line =~ /set[\t ]+(?<key>[^\s]+)[\t ]+(?<value>"[^"]+"|'[^']+'|[^\s]+)/ ) {
$config{'type'} = 'set';
$config{'key'} = $+{key};
$config{'value'} = $+{value};
$config{'value'} =~ s/^'(.*)'$/$1/;
$config{'value'} =~ s/^"(.*)"$/$1/;
} elsif ( $line =~ /(?<type>clean|skip-clean)[\t ]+(?<uri>[^\s]+)/ ) {
$config{'type'} = $+{type};
$config{'uri'} = $+{uri};
}
return %config;
}
open CONFIG, "<$config_file" or die("apt-mirror: can't open config file ($config_file)");
while (<CONFIG>)
{
next if /^\s*#/;
next unless /\S/;
my $line = $_;
my %config_line = parse_config_line;
if ( $config_line{'type'} eq "set" ) {
$config_variables{ $config_line{'key'} } = $config_line{'value'};
next;
} elsif ( $config_line{'type'} eq "deb" ) {
my $arch = $config_line{'arch'};
$arch = get_variable("defaultarch") if ! defined $config_line{'arch'};
push @config_binaries, [ $arch, $config_line{'uri'}, @{$config_line{'components'}} ];
next;
} elsif ( $config_line{'type'} eq "deb-src" ) {
push @config_sources, [ $config_line{'uri'}, @{$config_line{'components'}} ];
next;
} elsif ( $config_line{'type'} =~ /(skip-clean|clean)/ ) {
my $link = $config_line{'uri'};
$link =~ s[^(\w+)://][];
$link =~ s[/$][];
$link =~ s[~][%7E]g if get_variable("_tilde");
if ( $config_line{'type'} eq "skip-clean" ) {
$skipclean{ $link } = 1;
} elsif ( $config_line{'type'} eq "clean" ) {
$clean_directory{ $link } = 1;
}
next;
}
die("apt-mirror: invalid line in config file ($.: $line ...)");
}
close CONFIG;
die("Please explicitly specify 'defaultarch' in mirror.list") unless get_variable("defaultarch");
######################################################################################
## Create the 3 needed directories if they don't exist yet
my @needed_directories = ( get_variable("mirror_path"), get_variable("skel_path"), get_variable("var_path") );
foreach my $needed_directory (@needed_directories)
{
unless ( -d $needed_directory )
{
make_path($needed_directory) or die("apt-mirror: can't create $needed_directory directory");
}
}
#
#######################################################################################
lock_aptmirror();
######################################################################################
## Skel download
my %urls_to_download = ();
my ( $url, $arch );
sub remove_double_slashes
{
local $_ = shift;
while (s[/\./][/]g) { }
while (s[(?<!:)//][/]g) { }
while (s[(?<!:/)/[^/]+/\.\./][/]g) { }
s/~/\%7E/g if get_variable("_tilde");
return $_;
}
sub add_url_to_download
{
my $url = remove_double_slashes(shift);
$urls_to_download{$url} = shift;
}
foreach (@config_sources)
{
my ( $uri, $distribution, @components ) = @{$_};
if (@components)
{
$url = $uri . "/dists/" . $distribution . "/";
add_url_to_download( $url . "InRelease" );
add_url_to_download( $url . "Release" );
add_url_to_download( $url . "Release.gpg" );
foreach (@components)
{
add_url_to_download( $url . $_ . "/source/Release" );
add_url_to_download( $url . $_ . "/source/Sources.gz" );
add_url_to_download( $url . $_ . "/source/Sources.bz2" );
add_url_to_download( $url . $_ . "/source/Sources.xz" );
}
}
else
{
add_url_to_download( $uri . "/$distribution/InRelease" );
add_url_to_download( $uri . "/$distribution/Release" );
add_url_to_download( $uri . "/$distribution/Release.gpg" );
add_url_to_download( $uri . "/$distribution/Sources.gz" );
add_url_to_download( $uri . "/$distribution/Sources.bz2" );
add_url_to_download( $uri . "/$distribution/Sources.xz" );
}
}
foreach (@config_binaries)
{
my ( $arch, $uri, $distribution, @components ) = @{$_};
if (@components)
{
$url = $uri . "/dists/" . $distribution . "/";
add_url_to_download( $url . "InRelease" );
add_url_to_download( $url . "Release" );
add_url_to_download( $url . "Release.gpg" );
if ( get_variable("_contents") )
{
add_url_to_download( $url . "Contents-" . $arch . ".gz" );
add_url_to_download( $url . "Contents-" . $arch . ".bz2" );
add_url_to_download( $url . "Contents-" . $arch . ".xz" );
}
foreach (@components)
{
if ( get_variable("_contents") )
{
add_url_to_download( $url . $_ . "/Contents-" . $arch . ".gz" );
add_url_to_download( $url . $_ . "/Contents-" . $arch . ".bz2" );
add_url_to_download( $url . $_ . "/Contents-" . $arch . ".xz" );
}
add_url_to_download( $url . $_ . "/binary-" . $arch . "/Release" );
add_url_to_download( $url . $_ . "/binary-" . $arch . "/Packages" );
add_url_to_download( $url . $_ . "/binary-" . $arch . "/Packages.gz" );
add_url_to_download( $url . $_ . "/binary-" . $arch . "/Packages.bz2" );
add_url_to_download( $url . $_ . "/binary-" . $arch . "/Packages.xz" );
add_url_to_download( $url . $_ . "/i18n/Index" );
}
}
else
{
add_url_to_download( $uri . "/$distribution/InRelease" );
add_url_to_download( $uri . "/$distribution/Release" );
add_url_to_download( $uri . "/$distribution/Release.gpg" );
add_url_to_download( $uri . "/$distribution/Packages" );
add_url_to_download( $uri . "/$distribution/Packages.gz" );
add_url_to_download( $uri . "/$distribution/Packages.bz2" );
add_url_to_download( $uri . "/$distribution/Packages.xz" );
}
}
chdir get_variable("skel_path") or die("apt-mirror: can't chdir to skel");
@index_urls = sort keys %urls_to_download;
download_urls( "index", @index_urls );
foreach ( keys %urls_to_download )
{
s[^(\w+)://][];
s[~][%7E]g if get_variable("_tilde");
$skipclean{$_} = 1;
$skipclean{$_} = 1 if s[\.gz$][];
$skipclean{$_} = 1 if s[\.bz2$][];
$skipclean{$_} = 1 if s[\.xz$][];
}
######################################################################################
## Translation index download
%urls_to_download = ();
sub sanitise_uri
{
my $uri = shift;
$uri =~ s[^(\w+)://][];
$uri =~ s/^([^@]+)?@?// if $uri =~ /@/;
$uri =~ s/~/\%7E/g if get_variable("_tilde");
return $uri;
}
sub find_translation_files_in_release
{
# Look in the dists/$DIST/Release file for the translation files that belong
# to the given component.
my $dist_uri = shift;
my $component = shift;
my ( $release_uri, $release_path, $line ) = '';
$release_uri = $dist_uri . "Release";
$release_path = get_variable("skel_path") . "/" . sanitise_uri($release_uri);
unless ( open STREAM, "<$release_path" )
{
warn( "Failed to open Release file from " . $release_uri );
return;
}
my $checksums = 0;
while ( $line = <STREAM> )
{
chomp $line;
if ($checksums)
{
if ( $line =~ /^ +(.*)$/ )
{
my @parts = split( / +/, $1 );
if ( @parts == 3 )
{
my ( $sha1, $size, $filename ) = @parts;
if ( $filename =~ m{^$component/i18n/Translation-[^./]*\.(bz2|xz)$} )
{
add_url_to_download( $dist_uri . $filename, $size );
}
}
else
{
warn("Malformed checksum line \"$1\" in $release_uri");
}
}
else
{
$checksums = 0;
}
}
if ( not $checksums )
{
if ( $line eq "SHA256:" )
{
$checksums = 1;
}
}
}
}
sub process_translation_index
{
# Extract all translation files from the dists/$DIST/$COMPONENT/i18n/Index
# file. Fall back to parsing dists/$DIST/Release if i18n/Index is not found.
my $dist_uri = remove_double_slashes(shift);
my $component = shift;
my ( $base_uri, $index_uri, $index_path, $line ) = '';
$base_uri = $dist_uri . $component . "/i18n/";
$index_uri = $base_uri . "Index";
$index_path = get_variable("skel_path") . "/" . sanitise_uri($index_uri);
unless ( open STREAM, "<$index_path" )
{
find_translation_files_in_release( $dist_uri, $component );
return;
}
my $checksums = 0;
while ( $line = <STREAM> )
{
chomp $line;
if ($checksums)
{
if ( $line =~ /^ +(.*)$/ )
{
my @parts = split( / +/, $1 );
if ( @parts == 3 )
{
my ( $sha1, $size, $filename ) = @parts;
add_url_to_download( $base_uri . $filename, $size );
}
else
{
warn("Malformed checksum line \"$1\" in $index_uri");
}
}
else
{
$checksums = 0;
}
}
if ( not $checksums )
{
if ( $line eq "SHA256:" or $line eq "SHA1:" or $line eq "MD5Sum:" )
{
$checksums = 1;
}
}
}
close STREAM;
}
print "Processing translation indexes: ["
if $progress;
foreach (@config_binaries)
{
my ( $arch, $uri, $distribution, @components ) = @{$_};
print "T" if $progress;
if (@components)
{
$url = $uri . "/dists/" . $distribution . "/";
my $component;
foreach $component (@components)
{
process_translation_index( $url, $component );
}
}
}
print "]\n\n" if $progress;
push( @index_urls, sort keys %urls_to_download );
download_urls( "translation", sort keys %urls_to_download );
foreach ( keys %urls_to_download )
{
s[^(\w+)://][];
s[~][%7E]g if get_variable("_tilde");
$skipclean{$_} = 1;
}
######################################################################################
## DEP-11 index download
%urls_to_download = ();
sub find_dep11_files_in_release
{
# Look in the dists/$DIST/Release file for the DEP-11 files that belong
# to the given component and architecture.
my $dist_uri = shift;
my $component = shift;
my $arch = shift;
my ( $release_uri, $release_path, $line ) = '';
$release_uri = $dist_uri . "Release";
$release_path = get_variable("skel_path") . "/" . sanitise_uri($release_uri);
unless ( open STREAM, "<$release_path" )
{
warn( "Failed to open Release file from " . $release_uri );
return;
}
my $checksums = 0;
while ( $line = <STREAM> )
{
chomp $line;
if ($checksums)
{
if ( $line =~ /^ +(.*)$/ )
{
my @parts = split( / +/, $1 );
if ( @parts == 3 )
{
my ( $sha1, $size, $filename ) = @parts;
if ( $filename =~ m{^$component/dep11/(Components-${arch}\.yml|icons-(.*)+\.tar)\.(gz|bz2|xz)$} )
{
add_url_to_download( $dist_uri . $filename, $size );
}
}
else
{
warn("Malformed checksum line \"$1\" in $release_uri");
}
}
else
{
$checksums = 0;
}
}
if ( not $checksums )
{
if ( $line eq "SHA256:" )
{
$checksums = 1;
}
}
}
}
print "Processing DEP-11 indexes: ["
if $progress;
foreach (@config_binaries)
{
my ( $arch, $uri, $distribution, @components ) = @{$_};
print "D" if $progress;
if (@components)
{
$url = $uri . "/dists/" . $distribution . "/";
my $component;
foreach $component (@components)
{
find_dep11_files_in_release( $url, $component, $arch );
}
}
}
print "]\n\n" if $progress;
push( @index_urls, sort keys %urls_to_download );
download_urls( "dep11", sort keys %urls_to_download );
foreach ( keys %urls_to_download )
{
s[^(\w+)://][];
s[~][%7E]g if get_variable("_tilde");
$skipclean{$_} = 1;
}
######################################################################################
## by-hash SHA256 files download
%urls_to_download = ();
sub find_by_hash_sha256_files_in_release
{
# Look in the dists/$DIST/Release file for the by-hash SHA256 files that belong
# to the given component and architecture.
my $dist_uri = shift;
my $component = shift;
my $arch = shift;
my ( $release_uri, $release_path, $line ) = '';
$release_uri = $dist_uri . "Release";
$release_path = get_variable("skel_path") . "/" . sanitise_uri($release_uri);
unless ( open STREAM, "<$release_path" )
{
warn( "Failed to open Release file from " . $release_uri );
return;
}
my $checksums = 0;
while ( $line = <STREAM> )
{
chomp $line;
if ($checksums)
{
if ( $line =~ /^ +(.*)$/ )
{
my @parts = split( / +/, $1 );
if ( @parts == 3 )
{
my ( $sha256, $size, $filename ) = @parts;
my $dirname = dirname($filename);
my $sha256_filename = '/'.$dirname.'/by-hash/SHA256/'.$sha256;
{
add_url_to_download( $dist_uri . $sha256_filename );
}
}
else
{
warn("Malformed checksum line \"$1\" in $release_uri");
}
}
else
{
$checksums = 0;
}
}
if ( not $checksums )
{
if ( $line eq "SHA256:" )
{
$checksums = 1;
}
}
}
}
print "Processing SHA256 by-hash files ["
if $progress;
foreach (@config_binaries)
{
my ( $arch, $uri, $distribution, @components ) = @{$_};
print "D" if $progress;
if (@components)
{
$url = $uri . "/dists/" . $distribution . "/";
my $component;
foreach $component (@components)
{
find_by_hash_sha256_files_in_release( $url, $component, $arch );
}
}
}
print "]\n\n" if $progress;
push( @index_urls, sort keys %urls_to_download );
download_urls( "by-hash-SHA256", sort keys %urls_to_download );
foreach ( keys %urls_to_download )
{
s[^(\w+)://][];
s[~][%7E]g if get_variable("_tilde");
$skipclean{$_} = 1;
}
######################################################################################
## Main download preparations
%urls_to_download = ();
open FILES_ALL, ">" . get_variable("var_path") . "/ALL" or die("apt-mirror: can't write to intermediate file (ALL)");
open FILES_NEW, ">" . get_variable("var_path") . "/NEW" or die("apt-mirror: can't write to intermediate file (NEW)");
open FILES_MD5, ">" . get_variable("var_path") . "/MD5" or die("apt-mirror: can't write to intermediate file (MD5)");
open FILES_SHA1, ">" . get_variable("var_path") . "/SHA1" or die("apt-mirror: can't write to intermediate file (SHA1)");
open FILES_SHA256, ">" . get_variable("var_path") . "/SHA256" or die("apt-mirror: can't write to intermediate file (SHA256)");
my %stat_cache = ();
sub _stat
{
my ($filename) = shift;
return @{ $stat_cache{$filename} } if exists $stat_cache{$filename};
my @res = stat($filename);
$stat_cache{$filename} = \@res;
return @res;
}
sub clear_stat_cache
{
%stat_cache = ();
}
sub need_update
{
my $filename = shift;
my $size_on_server = shift;
my ( undef, undef, undef, undef, undef, undef, undef, $size ) = _stat($filename);
return 1 unless ($size);
return 0 if $size_on_server == $size;
return 1;
}
sub remove_spaces($)
{
my $hashref = shift;
foreach ( keys %{$hashref} )
{
while ( substr( $hashref->{$_}, 0, 1 ) eq ' ' )
{
substr( $hashref->{$_}, 0, 1 ) = '';
}
}
}
sub process_index
{
my $uri = shift;
my $index = shift;
my ( $path, $package, $mirror, $files ) = '';
$path = sanitise_uri($uri);
local $/ = "\n\n";
$mirror = get_variable("mirror_path") . "/" . $path;
if (-e "$path/$index.gz" )
{
system("gunzip < $path/$index.gz > $path/$index");
}
elsif (-e "$path/$index.xz" )
{
system("xz -d < $path/$index.xz > $path/$index");
}
elsif (-e "$path/$index.bz2" )
{
system("bzip2 -d < $path/$index.bz2 > $path/$index");
}
unless ( open STREAM, "<$path/$index" )
{
warn("apt-mirror: can't open index $path/$index in process_index");
return;
}
while ( $package = <STREAM> )
{
local $/ = "\n";
chomp $package;
my ( undef, %lines ) = split( /^([\w\-]+:)/m, $package );
$lines{"Directory:"} = "" unless defined $lines{"Directory:"};
chomp(%lines);
remove_spaces( \%lines );
if ( exists $lines{"Filename:"} )
{ # Packages index
$skipclean{ remove_double_slashes( $path . "/" . $lines{"Filename:"} ) } = 1;
print FILES_ALL remove_double_slashes( $path . "/" . $lines{"Filename:"} ) . "\n";
print "ALL: " . remove_double_slashes( $path . "/" . $lines{"Filename:"} ) . "\n"
if $verbose >= 3;
print FILES_MD5 $lines{"MD5sum:"} . " " . remove_double_slashes( $path . "/" . $lines{"Filename:"} ) . "\n" if defined $lines{"MD5sum:"};
print FILES_SHA1 $lines{"SHA1:"} . " " . remove_double_slashes( $path . "/" . $lines{"Filename:"} ) . "\n" if defined $lines{"SHA1:"};
print FILES_SHA256 $lines{"SHA256:"} . " " . remove_double_slashes( $path . "/" . $lines{"Filename:"} ) . "\n" if defined $lines{"SHA256:"};
if ( need_update( $mirror . "/" . $lines{"Filename:"}, $lines{"Size:"} ) )
{
print FILES_NEW remove_double_slashes( $uri . "/" . $lines{"Filename:"} ) . "\n";
print "NEW: " . remove_double_slashes( $uri . "/" . $lines{"Filename:"} ) . "\n"
if $verbose >= 1;
add_url_to_download( $uri . "/" . $lines{"Filename:"}, $lines{"Size:"} );
}
}
else
{ # Sources index
foreach ( split( /\n/, $lines{"Files:"} ) )
{
next if $_ eq '';
my @file = split;
die("apt-mirror: invalid Sources format") if @file != 3;
$skipclean{ remove_double_slashes( $path . "/" . $lines{"Directory:"} . "/" . $file[2] ) } = 1;
print FILES_ALL remove_double_slashes( $path . "/" . $lines{"Directory:"} . "/" . $file[2] ) . "\n";
print "ALL: " . remove_double_slashes( $path . "/" . $lines{"Directory:"} . "/" . $file[2] ) . "\n"
if $verbose >= 3;
print FILES_MD5 $file[0] . " " . remove_double_slashes( $path . "/" . $lines{"Directory:"} . "/" . $file[2] ) . "\n";
if ( need_update( $mirror . "/" . $lines{"Directory:"} . "/" . $file[2], $file[1] ) )
{
print FILES_NEW remove_double_slashes( $uri . "/" . $lines{"Directory:"} . "/" . $file[2] ) . "\n";
print "NEW: " . remove_double_slashes( $uri . "/" . $lines{"Directory:"} . "/" . $file[2] ) . "\n"
if $verbose >= 1;
add_url_to_download( $uri . "/" . $lines{"Directory:"} . "/" . $file[2], $file[1] );
}
}
}
}