scripts/download.pl

   1 #!/usr/bin/env 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 use File::Basename;
  12
  13 @ARGV > 2 or die "Syntax: $0 <target dir> <filename> <md5sum> [<mirror> ...]\n";
  14
  15 my $target = shift @ARGV;
  16 my $filename = shift @ARGV;
  17 my $md5sum = shift @ARGV;
  18 my $scriptdir = dirname($0);
  19 my @mirrors;
  20 my $ok;
  21
  22 sub localmirrors {
  23         my @mlist;
  24         open LM, "$scriptdir/localmirrors" and do {
  25             while (<LM>) {
  26                         chomp $_;
  27                         push @mlist, $_;
  28                 }
  29                 close LM;
  30         };
  31         open CONFIG, "<".$ENV{'TOPDIR'}."/.config" and do {
  32                 while (<CONFIG>) {
  33                         /^CONFIG_LOCALMIRROR="(.+)"/ and do {
  34                                 chomp;
  35                                 my @local_mirrors = split(/;/, $1);
  36                                 push @mlist, @local_mirrors;
  37                         };
  38                 }
  39                 close CONFIG;
  40         };
  41
  42         return @mlist;
  43 }
  44
  45 sub which($) {
  46         my $prog = shift;
  47         my $res = `which $prog`;
  48         $res or return undef;
  49         $res =~ /^no / and return undef;
  50         $res =~ /not found/ and return undef;
  51         return $res;
  52 }
  53
  54 my $md5cmd = which("md5sum");
  55 $md5cmd or $md5cmd = which("md5");
  56 $md5cmd or die 'no md5 checksum program found, please install md5 or md5sum';
  57 chomp $md5cmd;
  58
  59 sub download
  60 {
  61         my $mirror = shift;
  62         my $options = $ENV{WGET_OPTIONS};
  63         $options or $options = "";
  64
  65         $mirror =~ s/\/$//;
  66         if( $mirror =~ /^file:\/\// ) {
  67                 my $cache = $mirror;
  68                 $cache =~ s/file:\/\///g;
  69                 if(system("test -d $cache")) {
  70                         print STDERR "Wrong local cache directory -$cache-.\n";
  71                         cleanup();
  72                         return;
  73                 }
  74                 if(! -d $target) {
  75                         system("mkdir -p $target/");
  76                 }
  77                 system("cp -vf $cache/$filename $target/$filename.dl") == 0 or return;
  78                 system("$md5cmd $target/$filename.dl > \"$target/$filename.md5sum\" ") == 0 or return;
  79         } else {
  80                 open WGET, "wget -t5 --timeout=20 $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
  81                 open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
  82                 open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
  83                 my $buffer;
  84                 while (read WGET, $buffer, 1048576) {
  85                         print MD5SUM $buffer;
  86                         print OUTPUT $buffer;
  87                 }
  88                 close MD5SUM;
  89                 close WGET;
  90                 close OUTPUT;
  91
  92                 if (($? >> 8) != 0 ) {
  93                         print STDERR "Download failed.\n";
  94                         cleanup();
  95                         return;
  96                 }
  97         }
  98
  99         my $sum = `cat "$target/$filename.md5sum"`;
 100         $sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
 101         $sum = $1;
 102
 103         if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
 104                 print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $md5sum) - deleting download.\n";
 105                 cleanup();
 106                 return;
 107         }
 108
 109         unlink "$target/$filename";
 110         system("mv \"$target/$filename.dl\" \"$target/$filename\"");
 111         cleanup();
 112 }
 113
 114 sub cleanup
 115 {
 116         unlink "$target/$filename.dl";
 117         unlink "$target/$filename.md5sum";
 118 }
 119
 120 @mirrors = localmirrors();
 121
 122 foreach my $mirror (@ARGV) {
 123         if ($mirror =~ /^\@SF\/(.+)$/) {
 124                 # give sourceforge a few more tries, because it redirects to different mirrors
 125                 for (1 .. 5) {
 126                         push @mirrors, "http://downloads.sourceforge.net/$1";
 127                 }
 128         } elsif ($mirror =~ /^\@GNU\/(.+)$/) {
 129                 push @mirrors, "ftp://ftp.gnu.org/gnu/$1";
 130                 push @mirrors, "ftp://ftp.belnet.be/mirror/ftp.gnu.org/gnu/$1";
 131                 push @mirrors, "ftp://ftp.mirror.nl/pub/mirror/gnu/$1";
 132                 push @mirrors, "http://mirror.switch.ch/ftp/mirror/gnu/$1";
 133                 push @mirrors, "ftp://ftp.uu.net/archive/systems/gnu/$1";
 134                 push @mirrors, "ftp://ftp.eu.uu.net/pub/gnu/$1";
 135                 push @mirrors, "ftp://ftp.leo.org/pub/comp/os/unix/gnu/$1";
 136                 push @mirrors, "ftp://ftp.digex.net/pub/gnu/$1";
 137         } elsif ($mirror =~ /^\@KERNEL\/(.+)$/) {
 138                 push @mirrors, "ftp://ftp.all.kernel.org/pub/$1";
 139                 push @mirrors, "http://ftp.all.kernel.org/pub/$1";
 140                 push @mirrors, "ftp://ftp.de.kernel.org/pub/$1";
 141                 push @mirrors, "http://ftp.de.kernel.org/pub/$1";
 142                 push @mirrors, "ftp://ftp.fr.kernel.org/pub/$1";
 143                 push @mirrors, "http://ftp.fr.kernel.org/pub/$1";
 144     } elsif ($mirror =~ /^\@GNOME\/(.+)$/) {
 145                 push @mirrors, "http://ftp.gnome.org/pub/GNOME/sources/$1";
 146                 push @mirrors, "http://ftp.unina.it/pub/linux/GNOME/sources/$1";
 147                 push @mirrors, "http://fr2.rpmfind.net/linux/gnome.org/sources/$1";
 148                 push @mirrors, "ftp://ftp.dit.upm.es/pub/GNOME/sources/$1";
 149                 push @mirrors, "ftp://ftp.no.gnome.org/pub/GNOME/sources/$1";
 150                 push @mirrors, "http://ftp.acc.umu.se/pub/GNOME/sources/$1";
 151                 push @mirrors, "http://ftp.belnet.be/mirror/ftp.gnome.org/sources/$1";
 152                 push @mirrors, "http://linorg.usp.br/gnome/sources/$1";
 153                 push @mirrors, "http://mirror.aarnet.edu.au/pub/GNOME/sources/$1";
 154                 push @mirrors, "http://mirrors.ibiblio.org/pub/mirrors/gnome/sources/$1";
 155                 push @mirrors, "ftp://ftp.cse.buffalo.edu/pub/Gnome/sources/$1";
 156                 push @mirrors, "ftp://ftp.nara.wide.ad.jp/pub/X11/GNOME/sources/$1";
 157     }
 158     else {
 159                 push @mirrors, $mirror;
 160         }
 161 }
 162
 163 #push @mirrors, 'http://mirror1.openwrt.org';
 164 push @mirrors, 'http://mirror2.openwrt.org/sources';
 165 push @mirrors, 'http://downloads.openwrt.org/sources';
 166
 167 while (!$ok) {
 168         my $mirror = shift @mirrors;
 169         $mirror or die "No more mirrors to try - giving up.\n";
 170
 171         download($mirror);
 172         -f "$target/$filename" and $ok = 1;
 173 }
 174
 175 $SIG{INT} = \&cleanup;
 176