scripts/download.pl

   1 #!/usr/bin/perl
   2 #
   3 # Copyright (C) 2006 OpenWrt.org
   4 #
   5 # This is free software, licensed under the GNU General Public License v2.
   6 # See /LICENSE for more information.
   7 #
   8
   9 use strict;
  10 use warnings;
  11
  12 my $target = shift @ARGV;
  13 my $filename = shift @ARGV;
  14 my $md5sum = shift @ARGV;
  15 my @mirrors;
  16
  17 my $ok;
  18
  19 @ARGV > 0 or die "Syntax: $0 <target dir> <filename> <md5sum> <mirror> [<mirror> ...]\n";
  20
  21 my $md5cmd = `which md5sum`;
  22 $md5cmd or $md5cmd = `which md5`;
  23 $md5cmd or die 'no md5 checksum program found, please install md5 or md5sum';
  24 chomp $md5cmd;
  25
  26 sub download
  27 {
  28         my $mirror = shift;
  29
  30         open WGET, "wget -t1 --timeout=20 -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
  31         open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
  32         open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
  33         my $buffer;
  34         while (read WGET, $buffer, 1048576) {
  35                 print MD5SUM $buffer;
  36                 print OUTPUT $buffer;
  37         }
  38         close MD5SUM;
  39         close WGET;
  40         close OUTPUT;
  41
  42         if (($? >> 8) != 0 ) {
  43                 print STDERR "Download failed.\n";
  44                 cleanup();
  45                 return;
  46         }
  47
  48         my $sum = `cat "$target/$filename.md5sum"`;
  49         $sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
  50         $sum = $1;
  51
  52         if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
  53                 print STDERR "MD5 sum of the downloaded file does not match - deleting download.\n";
  54                 cleanup();
  55                 return;
  56         }
  57
  58         unlink "$target/$filename";
  59         system("mv \"$target/$filename.dl\" \"$target/$filename\"");
  60         cleanup();
  61 }
  62
  63 sub cleanup
  64 {
  65         unlink "$target/$filename.dl";
  66         unlink "$target/$filename.md5sum";
  67 }
  68
  69 foreach my $mirror (@ARGV) {
  70         if ($mirror =~ /^\@SF\/(.+)$/) {
  71                 my $sfpath = $1;
  72                 open SF, "wget -t1 -q -O- 'http://prdownloads.sourceforge.net/$sfpath/$filename' |";
  73                 while (<SF>) {
  74                         /RADIO NAME=use_default VALUE=(\w+) OnClick="form\.submit\(\)">/ or
  75                         /type="radio" name="use_default" value="(\w+)" onclick="form\.submit\(\)"\/>/ and do {
  76                                 push @mirrors, "http://$1.dl.sourceforge.net/sourceforge/$sfpath";
  77                         };
  78                         /<a href="\/.+\?use_mirror=(\w+)"><b>Download/ and do {
  79                                 push @mirrors, "http://$1.dl.sourceforge.net/sourceforge/$sfpath";
  80                         };
  81                 }
  82                 push @mirrors, "http://dl.sourceforge.net/sourceforge/$sfpath";
  83                 close SF;
  84         } elsif ($mirror =~ /^\@GNU\/(.+)$/) {
  85                 my $gnupath = $1;
  86                 push @mirrors, "ftp://ftp.gnu.org/gnu/$gnupath";
  87                 push @mirrors, "ftp://ftp.belnet.be/mirror/ftp.gnu.org/gnu/$gnupath";
  88                 push @mirrors, "ftp://ftp.mirror.nl/pub/mirror/gnu/$gnupath";
  89                 push @mirrors, "http://mirror.switch.ch/ftp/mirror/gnu/$gnupath";
  90                 push @mirrors, "ftp://ftp.uu.net/archive/systems/gnu/$gnupath";
  91                 push @mirrors, "ftp://ftp.eu.uu.net/pub/gnu/$gnupath";
  92                 push @mirrors, "ftp://ftp.leo.org/pub/comp/os/unix/gnu/$gnupath";
  93                 push @mirrors, "ftp://ftp.digex.net/pub/gnu/$gnupath";
  94         } else {
  95                 push @mirrors, $mirror;
  96         }
  97 }
  98
  99 #push @mirrors, 'http://mirror1.openwrt.org/';
 100 push @mirrors, 'http://mirror2.openwrt.org/sources';
 101 push @mirrors, 'http://downloads.openwrt.org/sources/';
 102
 103 while (!$ok) {
 104         my $mirror = shift @mirrors;
 105         $mirror or die "No more mirrors to try - giving up.\n";
 106
 107         download($mirror);
 108         -f "$target/$filename" and $ok = 1;
 109 }
 110
 111 $SIG{INT} = \&cleanup;
 112