scripts/download.pl

   1 #!/usr/bin/env perl
   2 #
   3 # Copyright (C) 2006 OpenWrt.org
   4 # Copyright (C) 2016 LEDE project
   5 #
   6 # This is free software, licensed under the GNU General Public License v2.
   7 # See /LICENSE for more information.
   8 #
   9
  10 use strict;
  11 use warnings;
  12 use File::Basename;
  13 use File::Copy;
  14 use Text::ParseWords;
  15
  16 @ARGV > 2 or die "Syntax: $0 <target dir> <filename> <hash> <url filename> [<mirror> ...]\n";
  17
  18 my $url_filename;
  19 my $target = shift @ARGV;
  20 my $filename = shift @ARGV;
  21 my $file_hash = shift @ARGV;
  22 $url_filename = shift @ARGV unless $ARGV[0] =~ /:\/\//;
  23 my $scriptdir = dirname($0);
  24 my @mirrors;
  25 my $ok;
  26
  27 $url_filename or $url_filename = $filename;
  28
  29 sub localmirrors {
  30         my @mlist;
  31         open LM, "$scriptdir/localmirrors" and do {
  32             while (<LM>) {
  33                         chomp $_;
  34                         push @mlist, $_ if $_;
  35                 }
  36                 close LM;
  37         };
  38         open CONFIG, "<".$ENV{'TOPDIR'}."/.config" and do {
  39                 while (<CONFIG>) {
  40                         /^CONFIG_LOCALMIRROR="(.+)"/ and do {
  41                                 chomp;
  42                                 my @local_mirrors = split(/;/, $1);
  43                                 push @mlist, @local_mirrors;
  44                         };
  45                 }
  46                 close CONFIG;
  47         };
  48
  49         my $mirror = $ENV{'DOWNLOAD_MIRROR'};
  50         $mirror and push @mlist, split(/;/, $mirror);
  51
  52         return @mlist;
  53 }
  54
  55 sub which($) {
  56         my $prog = shift;
  57         my $res = `which $prog`;
  58         $res or return undef;
  59         $res =~ /^no / and return undef;
  60         $res =~ /not found/ and return undef;
  61         return $res;
  62 }
  63
  64 sub hash_cmd() {
  65         my $len = length($file_hash);
  66         my $cmd;
  67
  68         $len == 64 and return "openssl dgst -sha256 | sed -e 's,.*= ,,'";
  69         $len == 32 and do {
  70                 my $cmd = which("md5sum") || which("md5") || die 'no md5 checksum program found, please install md5 or md5sum';
  71                 chomp $cmd;
  72                 return $cmd;
  73         };
  74         return undef;
  75 }
  76
  77 sub download_cmd($) {
  78         my $url = shift;
  79         my $have_curl = 0;
  80
  81         if (open CURL, '-|', 'curl', '--version') {
  82                 if (defined(my $line = readline CURL)) {
  83                         $have_curl = 1 if $line =~ /^curl /;
  84                 }
  85                 close CURL;
  86         }
  87
  88         return $have_curl
  89                 ? (qw(curl --connect-timeout 20 --retry 5 --location --insecure), shellwords($ENV{CURL_OPTIONS} || ''), $url)
  90                 : (qw(wget --tries=5 --timeout=20 --no-check-certificate --output-document=-), shellwords($ENV{WGET_OPTIONS} || ''), $url)
  91         ;
  92 }
  93
  94 my $hash_cmd = hash_cmd();
  95
  96 sub download
  97 {
  98         my $mirror = shift;
  99
 100         $mirror =~ s!/$!!;
 101
 102         if ($mirror =~ s!^file://!!) {
 103                 if (! -d "$mirror") {
 104                         print STDERR "Wrong local cache directory -$mirror-.\n";
 105                         cleanup();
 106                         return;
 107                 }
 108
 109                 if (! -d "$target") {
 110                         system("mkdir", "-p", "$target/");
 111                 }
 112
 113                 if (! open TMPDLS, "find $mirror -follow -name $filename 2>/dev/null |") {
 114                         print("Failed to search for $filename in $mirror\n");
 115                         return;
 116                 }
 117
 118                 my $link;
 119
 120                 while (defined(my $line = readline TMPDLS)) {
 121                         chomp ($link = $line);
 122                         if ($. > 1) {
 123                                 print("$. or more instances of $filename in $mirror found . Only one instance allowed.\n");
 124                                 return;
 125                         }
 126                 }
 127
 128                 close TMPDLS;
 129
 130                 if (! $link) {
 131                         print("No instances of $filename found in $mirror.\n");
 132                         return;
 133                 }
 134
 135                 print("Copying $filename from $link\n");
 136                 copy($link, "$target/$filename.dl");
 137
 138                 $hash_cmd and do {
 139                         if (system("cat '$target/$filename.dl' | $hash_cmd > '$target/$filename.hash'")) {
 140                                 print("Failed to generate hash for $filename\n");
 141                                 return;
 142                         }
 143                 };
 144         } else {
 145                 my @cmd = download_cmd("$mirror/$url_filename");
 146                 open(FETCH_FD, '-|', @cmd) or die "Cannot launch curl or wget.\n";
 147                 $hash_cmd and do {
 148                         open MD5SUM, "| $hash_cmd > '$target/$filename.hash'" or die "Cannot launch $hash_cmd.\n";
 149                 };
 150                 open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
 151                 my $buffer;
 152                 while (read FETCH_FD, $buffer, 1048576) {
 153                         $hash_cmd and print MD5SUM $buffer;
 154                         print OUTPUT $buffer;
 155                 }
 156                 $hash_cmd and close MD5SUM;
 157                 close FETCH_FD;
 158                 close OUTPUT;
 159
 160                 if ($? >> 8) {
 161                         print STDERR "Download failed.\n";
 162                         cleanup();
 163                         return;
 164                 }
 165         }
 166
 167         $hash_cmd and do {
 168                 my $sum = `cat "$target/$filename.hash"`;
 169                 $sum =~ /^(\w+)\s*/ or die "Could not generate file hash\n";
 170                 $sum = $1;
 171
 172                 if ($sum ne $file_hash) {
 173                         print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $file_hash) - deleting download.\n";
 174                         cleanup();
 175                         return;
 176                 }
 177         };
 178
 179         unlink "$target/$filename";
 180         system("mv", "$target/$filename.dl", "$target/$filename");
 181         cleanup();
 182 }
 183
 184 sub cleanup
 185 {
 186         unlink "$target/$filename.dl";
 187         unlink "$target/$filename.hash";
 188 }
 189
 190 @mirrors = localmirrors();
 191
 192 foreach my $mirror (@ARGV) {
 193         if ($mirror =~ /^\@SF\/(.+)$/) {
 194                 # give sourceforge a few more tries, because it redirects to different mirrors
 195                 for (1 .. 5) {
 196                         push @mirrors, "http://downloads.sourceforge.net/$1";
 197                 }
 198         } elsif ($mirror =~ /^\@APACHE\/(.+)$/) {
 199                 push @mirrors, "https://mirror.netcologne.de/apache.org/$1";
 200                 push @mirrors, "https://mirror.aarnet.edu.au/pub/apache/$1";
 201                 push @mirrors, "http://mirror.cogentco.com/pub/apache/$1";
 202                 push @mirrors, "http://mirror.csclub.uwaterloo.ca/apache/$1";
 203                 push @mirrors, "http://mirror.navercorp.com/apache/$1";
 204                 push @mirrors, "http://ftp.jaist.ac.jp/pub/apache/$1";
 205                 push @mirrors, "ftp://apache.cs.utah.edu/apache.org/$1";
 206                 push @mirrors, "ftp://apache.mirrors.ovh.net/ftp.apache.org/dist/$1";
 207         } elsif ($mirror =~ /^\@GITHUB\/(.+)$/) {
 208                 # give github a few more tries (different mirrors)
 209                 for (1 .. 5) {
 210                         push @mirrors, "https://raw.githubusercontent.com/$1";
 211                 }
 212         } elsif ($mirror =~ /^\@GNU\/(.+)$/) {
 213                 push @mirrors, "https://mirrors.rit.edu/gnu/$1";
 214                 push @mirrors, "https://mirror.netcologne.de/gnu/$1";
 215                 push @mirrors, "http://ftp.kddilabs.jp/GNU/gnu/$1";
 216                 push @mirrors, "http://www.nic.funet.fi/pub/gnu/gnu/$1";
 217                 push @mirrors, "http://mirror.internode.on.net/pub/gnu/$1";
 218                 push @mirrors, "http://mirror.navercorp.com/gnu/$1";
 219                 push @mirrors, "ftp://mirror.csclub.uwaterloo.ca/gnu/$1";
 220                 push @mirrors, "ftp://download.xs4all.nl/pub/gnu/";
 221         } elsif ($mirror =~ /^\@SAVANNAH\/(.+)$/) {
 222                 push @mirrors, "https://mirror.netcologne.de/savannah/$1";
 223                 push @mirrors, "http://mirror.csclub.uwaterloo.ca/nongnu/$1";
 224                 push @mirrors, "http://ftp.acc.umu.se/mirror/gnu.org/savannah/$1";
 225                 push @mirrors, "http://nongnu.uib.no/$1";
 226                 push @mirrors, "http://ftp.igh.cnrs.fr/pub/nongnu/$1";
 227                 push @mirrors, "http://public.p-knowledge.co.jp/Savannah-nongnu-mirror/$1";
 228                 push @mirrors, "ftp://cdimage.debian.org/mirror/gnu.org/savannah/$1";
 229                 push @mirrors, "ftp://ftp.acc.umu.se/mirror/gnu.org/savannah/$1";
 230         } elsif ($mirror =~ /^\@KERNEL\/(.+)$/) {
 231                 my @extra = ( $1 );
 232                 if ($filename =~ /linux-\d+\.\d+(?:\.\d+)?-rc/) {
 233                         push @extra, "$extra[0]/testing";
 234                 } elsif ($filename =~ /linux-(\d+\.\d+(?:\.\d+)?)/) {
 235                         push @extra, "$extra[0]/longterm/v$1";
 236                 }
 237                 foreach my $dir (@extra) {
 238                         push @mirrors, "https://cdn.kernel.org/pub/$dir";
 239                         push @mirrors, "https://mirror.rackspace.com/kernel.org/$dir";
 240                         push @mirrors, "http://download.xs4all.nl/ftp.kernel.org/pub/$dir";
 241                         push @mirrors, "http://mirrors.mit.edu/kernel/$dir";
 242                         push @mirrors, "http://ftp.nara.wide.ad.jp/pub/kernel.org/$dir";
 243                         push @mirrors, "http://www.ring.gr.jp/archives/linux/kernel.org/$dir";
 244                         push @mirrors, "ftp://ftp.riken.jp/Linux/kernel.org/$dir";
 245                         push @mirrors, "ftp://www.mirrorservice.org/sites/ftp.kernel.org/pub/$dir";
 246                 }
 247     } elsif ($mirror =~ /^\@GNOME\/(.+)$/) {
 248                 push @mirrors, "http://mirror.csclub.uwaterloo.ca/gnome/sources/$1";
 249                 push @mirrors, "http://ftp.acc.umu.se/pub/GNOME/sources/$1";
 250                 push @mirrors, "http://ftp.kaist.ac.kr/gnome/sources/$1";
 251                 push @mirrors, "http://www.mirrorservice.org/sites/ftp.gnome.org/pub/GNOME/sources/$1";
 252                 push @mirrors, "http://mirror.internode.on.net/pub/gnome/sources/$1";
 253                 push @mirrors, "http://ftp.belnet.be/ftp.gnome.org/sources/$1";
 254                 push @mirrors, "ftp://ftp.cse.buffalo.edu/pub/Gnome/sources/$1";
 255                 push @mirrors, "ftp://ftp.nara.wide.ad.jp/pub/X11/GNOME/sources/$1";
 256     }
 257     else {
 258                 push @mirrors, $mirror;
 259         }
 260 }
 261
 262 #push @mirrors, 'http://mirror1.openwrt.org';
 263 push @mirrors, 'http://sources.lede-project.org';
 264 push @mirrors, 'http://mirror2.openwrt.org/sources';
 265 push @mirrors, 'http://downloads.openwrt.org/sources';
 266
 267 while (!-f "$target/$filename") {
 268         my $mirror = shift @mirrors;
 269         $mirror or die "No more mirrors to try - giving up.\n";
 270
 271         download($mirror);
 272 }
 273
 274 $SIG{INT} = \&cleanup;
 275