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executable file 211 lines (180 sloc) 5.857 kb
#!/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(/;/, $1);
push @mlist, @local_mirrors;
};
}
close CONFIG;
};
return @mlist;
}
sub which($) {
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, "ftp://ftp.gnu.org/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";
push @mirrors, "ftp://ftp.uu.net/archive/systems/gnu/$1";
push @mirrors, "ftp://ftp.eu.uu.net/pub/gnu/$1";
push @mirrors, "ftp://ftp.leo.org/pub/comp/os/unix/gnu/$1";
push @mirrors, "ftp://ftp.digex.net/pub/gnu/$1";
} elsif ($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/$dir";
push @mirrors, "ftp://ftp.de.kernel.org/pub/$dir";
push @mirrors, "http://ftp.de.kernel.org/pub/$dir";
push @mirrors, "ftp://ftp.fr.kernel.org/pub/$dir";
push @mirrors, "http://ftp.fr.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;
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