123 lines
3.3 KiB
Perl
Executable file
123 lines
3.3 KiB
Perl
Executable file
#!/usr/bin/perl
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#
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# Copyright (C) 2006 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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use strict;
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use warnings;
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my $target = shift @ARGV;
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my $filename = shift @ARGV;
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my $md5sum = shift @ARGV;
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my @mirrors;
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my $ok;
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@ARGV > 0 or die "Syntax: $0 <target dir> <filename> <md5sum> <mirror> [<mirror> ...]\n";
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sub which($) {
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my $prog = shift;
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my $res = `which $prog`;
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$res or return undef;
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$res =~ /^no / and return undef;
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$res =~ /not found/ and return undef;
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return $res;
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}
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my $md5cmd = which("md5sum");
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$md5cmd or $md5cmd = which("md5");
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$md5cmd or die 'no md5 checksum program found, please install md5 or md5sum';
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chomp $md5cmd;
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sub download
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{
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my $mirror = shift;
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my $options = $ENV{WGET_OPTIONS};
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$options or $options = "";
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open WGET, "wget -t1 --timeout=20 $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
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open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
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open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
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my $buffer;
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while (read WGET, $buffer, 1048576) {
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print MD5SUM $buffer;
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print OUTPUT $buffer;
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}
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close MD5SUM;
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close WGET;
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close OUTPUT;
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if (($? >> 8) != 0 ) {
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print STDERR "Download failed.\n";
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cleanup();
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return;
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}
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my $sum = `cat "$target/$filename.md5sum"`;
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$sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
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$sum = $1;
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if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
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print STDERR "MD5 sum of the downloaded file does not match - deleting download.\n";
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cleanup();
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return;
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}
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unlink "$target/$filename";
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system("mv \"$target/$filename.dl\" \"$target/$filename\"");
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cleanup();
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}
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sub cleanup
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{
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unlink "$target/$filename.dl";
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unlink "$target/$filename.md5sum";
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}
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foreach my $mirror (@ARGV) {
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if ($mirror =~ /^\@SF\/(.+)$/) {
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my $sfpath = $1;
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open SF, "wget -t1 -q -O- 'http://prdownloads.sourceforge.net/$sfpath/$filename' |";
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while (<SF>) {
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/RADIO NAME=use_default VALUE=(\w+) OnClick="form\.submit\(\)">/ or
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/type="radio" name="use_default" value="(\w+)" onclick="form\.submit\(\)"\/>/ and do {
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push @mirrors, "http://$1.dl.sourceforge.net/sourceforge/$sfpath";
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};
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/<a href="\/.+\?use_mirror=(\w+)"><b>Download/ and do {
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push @mirrors, "http://$1.dl.sourceforge.net/sourceforge/$sfpath";
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};
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}
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push @mirrors, "http://dl.sourceforge.net/sourceforge/$sfpath";
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close SF;
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} elsif ($mirror =~ /^\@GNU\/(.+)$/) {
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my $gnupath = $1;
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push @mirrors, "ftp://ftp.gnu.org/gnu/$gnupath";
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push @mirrors, "ftp://ftp.belnet.be/mirror/ftp.gnu.org/gnu/$gnupath";
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push @mirrors, "ftp://ftp.mirror.nl/pub/mirror/gnu/$gnupath";
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push @mirrors, "http://mirror.switch.ch/ftp/mirror/gnu/$gnupath";
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push @mirrors, "ftp://ftp.uu.net/archive/systems/gnu/$gnupath";
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push @mirrors, "ftp://ftp.eu.uu.net/pub/gnu/$gnupath";
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push @mirrors, "ftp://ftp.leo.org/pub/comp/os/unix/gnu/$gnupath";
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push @mirrors, "ftp://ftp.digex.net/pub/gnu/$gnupath";
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} else {
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push @mirrors, $mirror;
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}
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}
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#push @mirrors, 'http://mirror1.openwrt.org/';
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push @mirrors, 'http://mirror2.openwrt.org/sources';
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push @mirrors, 'http://downloads.openwrt.org/sources/';
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while (!$ok) {
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my $mirror = shift @mirrors;
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$mirror or die "No more mirrors to try - giving up.\n";
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download($mirror);
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-f "$target/$filename" and $ok = 1;
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}
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$SIG{INT} = \&cleanup;
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