#!/usr/bin/env perl # # Copyright (C) 2006 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # use strict; use warnings; use File::Basename; use File::Copy; @ARGV > 2 or die "Syntax: $0 <target dir> <filename> <md5sum> [<mirror> ...]\n"; my $target = shift @ARGV; my $filename = shift @ARGV; my $md5sum = shift @ARGV; my $scriptdir = dirname($0); my @mirrors; my $ok; sub localmirrors { my @mlist; open LM, "$scriptdir/localmirrors" and do { while (<LM>) { chomp $_; push @mlist, $_ if $_; } close LM; }; open CONFIG, "<".$ENV{'TOPDIR'}."/.config" and do { while (<CONFIG>) { /^CONFIG_LOCALMIRROR="(.+)"/ and do { chomp; my @local_mirrors = split(/;/, $1); push @mlist, @local_mirrors; }; } close CONFIG; }; my $mirror = $ENV{'DOWNLOAD_MIRROR'}; $mirror and push @mlist, split(/;/, $mirror); return @mlist; } sub which($) { my $prog = shift; my $res = `which $prog`; $res or return undef; $res =~ /^no / and return undef; $res =~ /not found/ and return undef; return $res; } my $md5cmd = which("md5sum") || which("md5") || die 'no md5 checksum program found, please install md5 or md5sum'; chomp $md5cmd; sub download { my $mirror = shift; my $options = $ENV{WGET_OPTIONS} || ""; $mirror =~ s!/$!!; if ($mirror =~ s!^file://!!) { if (! -d "$mirror") { print STDERR "Wrong local cache directory -$mirror-.\n"; cleanup(); return; } if (! -d "$target") { system("mkdir", "-p", "$target/"); } if (! open TMPDLS, "find $mirror -follow -name $filename 2>/dev/null |") { print("Failed to search for $filename in $mirror\n"); return; } my $link; while (defined(my $line = readline TMPDLS)) { chomp ($link = $line); if ($. > 1) { print("$. or more instances of $filename in $mirror found . Only one instance allowed.\n"); return; } } close TMPDLS; if (! $link) { print("No instances of $filename found in $mirror.\n"); return; } print("Copying $filename from $link\n"); copy($link, "$target/$filename.dl"); if (system("$md5cmd '$target/$filename.dl' > '$target/$filename.md5sum'")) { print("Failed to generate md5 sum for $filename\n"); return; } } else { open WGET, "wget -t5 --timeout=20 --no-check-certificate $options -O- '$mirror/$filename' |" or die "Cannot launch wget.\n"; open MD5SUM, "| $md5cmd > '$target/$filename.md5sum'" or die "Cannot launch md5sum.\n"; open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n"; my $buffer; while (read WGET, $buffer, 1048576) { print MD5SUM $buffer; print OUTPUT $buffer; } close MD5SUM; close WGET; close OUTPUT; if ($? >> 8) { print STDERR "Download failed.\n"; cleanup(); return; } } my $sum = `cat "$target/$filename.md5sum"`; $sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n"; $sum = $1; if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) { print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $md5sum) - deleting download.\n"; cleanup(); return; } unlink "$target/$filename"; system("mv", "$target/$filename.dl", "$target/$filename"); cleanup(); } sub cleanup { unlink "$target/$filename.dl"; unlink "$target/$filename.md5sum"; } @mirrors = localmirrors(); foreach my $mirror (@ARGV) { if ($mirror =~ /^\@SF\/(.+)$/) { # give sourceforge a few more tries, because it redirects to different mirrors for (1 .. 5) { push @mirrors, "http://downloads.sourceforge.net/$1"; } } elsif ($mirror =~ /^\@GNU\/(.+)$/) { push @mirrors, "http://ftpmirror.gnu.org/$1"; push @mirrors, "http://ftp.gnu.org/pub/gnu/$1"; push @mirrors, "ftp://ftp.belnet.be/mirror/ftp.gnu.org/gnu/$1"; push @mirrors, "ftp://ftp.mirror.nl/pub/mirror/gnu/$1"; push @mirrors, "http://mirror.switch.ch/ftp/mirror/gnu/$1"; } elsif ($mirror =~ /^\@SAVANNAH\/(.+)$/) { push @mirrors, "http://download.savannah.gnu.org/releases/$1"; push @mirrors, "http://nongnu.uib.no/$1"; push @mirrors, "http://ftp.igh.cnrs.fr/pub/nongnu/$1"; push @mirrors, "http://download-mirror.savannah.gnu.org/releases/$1"; } elsif ($mirror =~ /^\@KERNEL\/(.+)$/) { my @extra = ( $1 ); if ($filename =~ /linux-\d+\.\d+(?:\.\d+)?-rc/) { push @extra, "$extra[0]/testing"; } elsif ($filename =~ /linux-(\d+\.\d+(?:\.\d+)?)/) { push @extra, "$extra[0]/longterm/v$1"; } foreach my $dir (@extra) { push @mirrors, "ftp://ftp.all.kernel.org/pub/$dir"; push @mirrors, "http://ftp.all.kernel.org/pub/$dir"; } } elsif ($mirror =~ /^\@GNOME\/(.+)$/) { push @mirrors, "http://ftp.gnome.org/pub/GNOME/sources/$1"; push @mirrors, "http://ftp.unina.it/pub/linux/GNOME/sources/$1"; push @mirrors, "http://fr2.rpmfind.net/linux/gnome.org/sources/$1"; push @mirrors, "ftp://ftp.dit.upm.es/pub/GNOME/sources/$1"; push @mirrors, "ftp://ftp.no.gnome.org/pub/GNOME/sources/$1"; push @mirrors, "http://ftp.acc.umu.se/pub/GNOME/sources/$1"; push @mirrors, "http://ftp.belnet.be/mirror/ftp.gnome.org/sources/$1"; push @mirrors, "http://linorg.usp.br/gnome/sources/$1"; push @mirrors, "http://mirror.aarnet.edu.au/pub/GNOME/sources/$1"; push @mirrors, "http://mirrors.ibiblio.org/pub/mirrors/gnome/sources/$1"; push @mirrors, "ftp://ftp.cse.buffalo.edu/pub/Gnome/sources/$1"; push @mirrors, "ftp://ftp.nara.wide.ad.jp/pub/X11/GNOME/sources/$1"; } else { push @mirrors, $mirror; } } #push @mirrors, 'http://mirror1.openwrt.org'; push @mirrors, 'http://mirror2.openwrt.org/sources'; push @mirrors, 'http://downloads.openwrt.org/sources'; while (!$ok) { my $mirror = shift @mirrors; $mirror or die "No more mirrors to try - giving up.\n"; download($mirror); -f "$target/$filename" and $ok = 1; } $SIG{INT} = \&cleanup;