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 use File::Copy;
  13
  14 @ARGV > 2 or die "Syntax: $0 <target dir> <filename> <md5sum> [<mirror> ...]\n";
  15
  16 my $target = shift @ARGV;
  17 my $filename = shift @ARGV;
  18 my $md5sum = shift @ARGV;
  19 my $scriptdir = dirname($0);
  20 my @mirrors;
  21 my $ok;
  22
  23 sub localmirrors {
  24         my @mlist;
  25         open LM, "$scriptdir/localmirrors" and do {
  26             while (<LM>) {
  27                         chomp $_;
  28                         push @mlist, $_ if $_;
  29                 }
  30                 close LM;
  31         };
  32         open CONFIG, "<".$ENV{'TOPDIR'}."/.config" and do {
  33                 while (<CONFIG>) {
  34                         /^CONFIG_LOCALMIRROR="(.+)"/ and do {
  35                                 chomp;
  36                                 my @local_mirrors = split(/;/, $1);
  37                                 push @mlist, @local_mirrors;
  38                         };
  39                 }
  40                 close CONFIG;
  41         };
  42
  43         return @mlist;
  44 }
  45
  46 sub which($) {
  47         my $prog = shift;
  48         my $res = `which $prog`;
  49         $res or return undef;
  50         $res =~ /^no / and return undef;
  51         $res =~ /not found/ and return undef;
  52         return $res;
  53 }
  54
  55 my $md5cmd = which("md5sum");
  56 $md5cmd or $md5cmd = which("md5");
  57 $md5cmd or die 'no md5 checksum program found, please install md5 or md5sum';
  58 chomp $md5cmd;
  59
  60 sub download
  61 {
  62         my $mirror = shift;
  63         my $options = $ENV{WGET_OPTIONS};
  64         $options or $options = "";
  65
  66         $mirror =~ s/\/$//;
  67         if( $mirror =~ /^file:\/\// ) {
  68                 my $cache = $mirror;
  69                 $cache =~ s/file:\/\///g;
  70                 if(system("test -d $cache")) {
  71                         print STDERR "Wrong local cache directory -$cache-.\n";
  72                         cleanup();
  73                         return;
  74                 }
  75                 if(! -d $target) {
  76                         system("mkdir -p $target/");
  77                 }
  78                 if (open TMPDLS, "find $cache -follow -name $filename 2>/dev/null |"){
  79                         my $i = 0;
  80                         my $link = "";
  81                         while (defined($link = readline TMPDLS)) {
  82                                 chomp $link;
  83                                 $i++;
  84                                 if ($i > 1) {
  85                                         print("$i or more instances of $filename in $cache found . Only one instance allowed.\n");
  86                                         return;
  87                                 }
  88                         }
  89                         close TMPDLS;
  90                         if ($i < 1) {
  91                                 print("No instances of $filename found in $cache.\n");
  92                                 return;
  93                         } elsif ($i == 1){
  94                                 print("Copying $filename from $link\n");
  95                                 copy($link, "$target/$filename.dl");
  96                         }
  97                 } else {
  98                         print("Failed to search for $filename in $cache\n");
  99                         return;
 100                 }
 101                 system("$md5cmd $target/$filename.dl > \"$target/$filename.md5sum\" ") == 0 or return;
 102         } else {
 103                 open WGET, "wget -t5 --timeout=20 --no-check-certificate $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
 104                 open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
 105                 open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
 106                 my $buffer;
 107                 while (read WGET, $buffer, 1048576) {
 108                         print MD5SUM $buffer;
 109                         print OUTPUT $buffer;
 110                 }
 111                 close MD5SUM;
 112                 close WGET;
 113                 close OUTPUT;
 114
 115                 if (($? >> 8) != 0 ) {
 116                         print STDERR "Download failed.\n";
 117                         cleanup();
 118                         return;
 119                 }
 120         }
 121
 122         my $sum = `cat "$target/$filename.md5sum"`;
 123         $sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
 124         $sum = $1;
 125
 126         if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
 127                 print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $md5sum) - deleting download.\n";
 128                 cleanup();
 129                 return;
 130         }
 131
 132         unlink "$target/$filename";
 133         system("mv \"$target/$filename.dl\" \"$target/$filename\"");
 134         cleanup();
 135 }
 136
 137 sub cleanup
 138 {
 139         unlink "$target/$filename.dl";
 140         unlink "$target/$filename.md5sum";
 141 }
 142
 143 @mirrors = localmirrors();
 144
 145 foreach my $mirror (@ARGV) {
 146         if ($mirror =~ /^\@SF\/(.+)$/) {
 147                 # give sourceforge a few more tries, because it redirects to different mirrors
 148                 for (1 .. 5) {
 149                         push @mirrors, "http://downloads.sourceforge.net/$1";
 150                 }
 151         } elsif ($mirror =~ /^\@GNU\/(.+)$/) {
 152                 push @mirrors, "ftp://ftp.gnu.org/gnu/$1";
 153                 push @mirrors, "ftp://ftp.belnet.be/mirror/ftp.gnu.org/gnu/$1";
 154                 push @mirrors, "ftp://ftp.mirror.nl/pub/mirror/gnu/$1";
 155                 push @mirrors, "http://mirror.switch.ch/ftp/mirror/gnu/$1";
 156                 push @mirrors, "ftp://ftp.uu.net/archive/systems/gnu/$1";
 157                 push @mirrors, "ftp://ftp.eu.uu.net/pub/gnu/$1";
 158                 push @mirrors, "ftp://ftp.leo.org/pub/comp/os/unix/gnu/$1";
 159                 push @mirrors, "ftp://ftp.digex.net/pub/gnu/$1";
 160         } elsif ($mirror =~ /^\@KERNEL\/(.+)$/) {
 161                 my @extra = ( $1 );
 162                 if ($filename =~ /linux-\d+\.\d+(?:\.\d+)?-rc/) {
 163                         push @extra, "$extra[0]/testing";
 164                 } elsif ($filename =~ /linux-(\d+\.\d+(?:\.\d+)?)/) {
 165                         push @extra, "$extra[0]/longterm/v$1";
 166                 }
 167                 foreach my $dir (@extra) {
 168                         push @mirrors, "ftp://ftp.all.kernel.org/pub/$dir";
 169                         push @mirrors, "http://ftp.all.kernel.org/pub/$dir";
 170                         push @mirrors, "ftp://ftp.de.kernel.org/pub/$dir";
 171                         push @mirrors, "http://ftp.de.kernel.org/pub/$dir";
 172                         push @mirrors, "ftp://ftp.fr.kernel.org/pub/$dir";
 173                         push @mirrors, "http://ftp.fr.kernel.org/pub/$dir";
 174                 }
 175     } elsif ($mirror =~ /^\@GNOME\/(.+)$/) {
 176                 push @mirrors, "http://ftp.gnome.org/pub/GNOME/sources/$1";
 177                 push @mirrors, "http://ftp.unina.it/pub/linux/GNOME/sources/$1";
 178                 push @mirrors, "http://fr2.rpmfind.net/linux/gnome.org/sources/$1";
 179                 push @mirrors, "ftp://ftp.dit.upm.es/pub/GNOME/sources/$1";
 180                 push @mirrors, "ftp://ftp.no.gnome.org/pub/GNOME/sources/$1";
 181                 push @mirrors, "http://ftp.acc.umu.se/pub/GNOME/sources/$1";
 182                 push @mirrors, "http://ftp.belnet.be/mirror/ftp.gnome.org/sources/$1";
 183                 push @mirrors, "http://linorg.usp.br/gnome/sources/$1";
 184                 push @mirrors, "http://mirror.aarnet.edu.au/pub/GNOME/sources/$1";
 185                 push @mirrors, "http://mirrors.ibiblio.org/pub/mirrors/gnome/sources/$1";
 186                 push @mirrors, "ftp://ftp.cse.buffalo.edu/pub/Gnome/sources/$1";
 187                 push @mirrors, "ftp://ftp.nara.wide.ad.jp/pub/X11/GNOME/sources/$1";
 188     }
 189     else {
 190                 push @mirrors, $mirror;
 191         }
 192 }
 193
 194 #push @mirrors, 'http://mirror1.openwrt.org';
 195 push @mirrors, 'http://mirror2.openwrt.org/sources';
 196 push @mirrors, 'http://downloads.openwrt.org/sources';
 197
 198 while (!$ok) {
 199         my $mirror = shift @mirrors;
 200         $mirror or die "No more mirrors to try - giving up.\n";
 201
 202         download($mirror);
 203         -f "$target/$filename" and $ok = 1;
 204 }
 205
 206 $SIG{INT} = \&cleanup;
 207