353 lines
10 KiB
Perl
Executable File
353 lines
10 KiB
Perl
Executable File
#!/usr/bin/env perl
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#
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# Copyright (C) 2006 OpenWrt.org
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# Copyright (C) 2016 LEDE project
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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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use File::Basename;
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use File::Copy;
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use Text::ParseWords;
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@ARGV > 2 or die "Syntax: $0 <target dir> <filename> <hash> <url filename> [<mirror> ...]\n";
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my $url_filename;
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my $target = glob(shift @ARGV);
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my $filename = shift @ARGV;
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my $file_hash = shift @ARGV;
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$url_filename = shift @ARGV unless $ARGV[0] =~ /:\/\//;
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my $scriptdir = dirname($0);
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my @mirrors;
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my $ok;
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my $check_certificate = $ENV{DOWNLOAD_CHECK_CERTIFICATE} eq "y";
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my $custom_tool = $ENV{DOWNLOAD_TOOL_CUSTOM};
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my $download_tool;
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$url_filename or $url_filename = $filename;
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sub localmirrors {
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my @mlist;
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open LM, "$scriptdir/localmirrors" and do {
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while (<LM>) {
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chomp $_;
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push @mlist, $_ if $_;
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}
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close LM;
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};
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open CONFIG, "<".$ENV{'TOPDIR'}."/.config" and do {
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while (<CONFIG>) {
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/^CONFIG_LOCALMIRROR="(.+)"/ and do {
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chomp;
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my @local_mirrors = split(/;/, $1);
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push @mlist, @local_mirrors;
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};
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}
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close CONFIG;
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};
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my $mirror = $ENV{'DOWNLOAD_MIRROR'};
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$mirror and push @mlist, split(/;/, $mirror);
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return @mlist;
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}
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sub which($) {
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my $prog = shift;
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my $res = `command -v $prog`;
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$res or return undef;
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return $res;
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}
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sub hash_cmd() {
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my $len = length($file_hash);
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my $cmd;
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$len == 64 and return "$ENV{'MKHASH'} sha256";
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$len == 32 and return "$ENV{'MKHASH'} md5";
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return undef;
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}
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sub tool_present {
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my $tool_name = shift;
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my $compare_line = shift;
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my $present = 0;
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if (open TOOL, "$tool_name --version 2>/dev/null |") {
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if (defined(my $line = readline TOOL)) {
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$present = 1 if $line =~ /^$compare_line /;
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}
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close TOOL;
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}
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return $present
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}
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sub select_tool {
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$custom_tool =~ tr/"//d;
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if ($custom_tool) {
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return $custom_tool;
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}
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# Try to use curl if available
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if (tool_present("curl", "curl")) {
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return "curl";
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}
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# No tool found, fallback to wget
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return "wget";
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}
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sub download_cmd {
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my $url = shift;
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my $filename = shift;
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if ($download_tool eq "curl") {
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return (qw(curl -f --connect-timeout 20 --retry 5 --location),
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$check_certificate ? () : '--insecure',
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shellwords($ENV{CURL_OPTIONS} || ''),
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$url);
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} elsif ($download_tool eq "wget") {
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return (qw(wget --tries=5 --timeout=20 --output-document=-),
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$check_certificate ? () : '--no-check-certificate',
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shellwords($ENV{WGET_OPTIONS} || ''),
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$url);
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} elsif ($download_tool eq "aria2c") {
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my $additional_mirrors = join(" ", map "$_/$filename", @_);
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my @chArray = ('a'..'z', 'A'..'Z', 0..9);
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my $rfn = join '', "${filename}_", map{ $chArray[int rand @chArray] } 0..9;
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@mirrors=();
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return join(" ", "[ -d $ENV{'TMPDIR'}/aria2c ] || mkdir $ENV{'TMPDIR'}/aria2c;",
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"touch $ENV{'TMPDIR'}/aria2c/${rfn}_spp;",
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qw(aria2c --stderr -c -x2 -s10 -j10 -k1M), $url, $additional_mirrors,
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$check_certificate ? () : '--check-certificate=false',
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"--server-stat-of=$ENV{'TMPDIR'}/aria2c/${rfn}_spp",
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"--server-stat-if=$ENV{'TMPDIR'}/aria2c/${rfn}_spp",
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"--daemon=false --no-conf", shellwords($ENV{ARIA2C_OPTIONS} || ''),
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"-d $ENV{'TMPDIR'}/aria2c -o $rfn;",
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"cat $ENV{'TMPDIR'}/aria2c/$rfn;",
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"rm $ENV{'TMPDIR'}/aria2c/$rfn $ENV{'TMPDIR'}/aria2c/${rfn}_spp");
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} else {
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return join(" ", $download_tool, $url);
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}
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}
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my $hash_cmd = hash_cmd();
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$hash_cmd or ($file_hash eq "skip") or die "Cannot find appropriate hash command, ensure the provided hash is either a MD5 or SHA256 checksum.\n";
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sub download
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{
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my $mirror = shift;
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my $download_filename = shift;
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my @additional_mirrors = @_;
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$mirror =~ s!/$!!;
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if ($mirror =~ s!^file://!!) {
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if (! -d "$mirror") {
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print STDERR "Wrong local cache directory -$mirror-.\n";
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cleanup();
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return;
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}
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if (! -d "$target") {
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system("mkdir", "-p", "$target/");
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}
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if (! open TMPDLS, "find $mirror -follow -name $filename 2>/dev/null |") {
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print("Failed to search for $filename in $mirror\n");
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return;
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}
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my $link;
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while (defined(my $line = readline TMPDLS)) {
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chomp ($link = $line);
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if ($. > 1) {
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print("$. or more instances of $filename in $mirror found . Only one instance allowed.\n");
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return;
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}
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}
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close TMPDLS;
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if (! $link) {
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print("No instances of $filename found in $mirror.\n");
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return;
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}
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print("Copying $filename from $link\n");
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copy($link, "$target/$filename.dl");
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$hash_cmd and do {
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if (system("cat '$target/$filename.dl' | $hash_cmd > '$target/$filename.hash'")) {
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print("Failed to generate hash for $filename\n");
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return;
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}
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};
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} else {
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my @cmd = download_cmd("$mirror/$download_filename", $download_filename, @additional_mirrors);
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print STDERR "+ ".join(" ",@cmd)."\n";
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open(FETCH_FD, '-|', @cmd) or die "Cannot launch aria2c, curl or wget.\n";
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$hash_cmd and do {
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open MD5SUM, "| $hash_cmd > '$target/$filename.hash'" or die "Cannot launch $hash_cmd.\n";
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};
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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 FETCH_FD, $buffer, 1048576) {
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$hash_cmd and print MD5SUM $buffer;
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print OUTPUT $buffer;
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}
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$hash_cmd and close MD5SUM;
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close FETCH_FD;
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close OUTPUT;
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if ($? >> 8) {
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print STDERR "Download failed.\n";
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cleanup();
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return;
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}
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}
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$hash_cmd and do {
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my $sum = `cat "$target/$filename.hash"`;
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$sum =~ /^(\w+)\s*/ or die "Could not generate file hash\n";
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$sum = $1;
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if ($sum ne $file_hash) {
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print STDERR "Hash of the downloaded file does not match (file: $sum, requested: $file_hash) - deleting download.\n";
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cleanup();
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return;
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}
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};
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unlink "$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.hash";
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}
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@mirrors = localmirrors();
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foreach my $mirror (@ARGV) {
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if ($mirror =~ /^\@SF\/(.+)$/) {
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# give sourceforge a few more tries, because it redirects to different mirrors
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for (1 .. 5) {
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push @mirrors, "https://downloads.sourceforge.net/$1";
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}
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} elsif ($mirror =~ /^\@OPENWRT$/) {
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# use OpenWrt source server directly
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} elsif ($mirror =~ /^\@DEBIAN\/(.+)$/) {
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push @mirrors, "https://ftp.debian.org/debian/$1";
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push @mirrors, "https://mirror.leaseweb.com/debian/$1";
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push @mirrors, "https://mirror.netcologne.de/debian/$1";
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push @mirrors, "https://mirrors.tuna.tsinghua.edu.cn/debian/$1";
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push @mirrors, "https://mirrors.ustc.edu.cn/debian/$1"
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} elsif ($mirror =~ /^\@APACHE\/(.+)$/) {
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push @mirrors, "https://dlcdn.apache.org/$1";
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push @mirrors, "https://mirror.aarnet.edu.au/pub/apache/$1";
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push @mirrors, "https://mirror.csclub.uwaterloo.ca/apache/$1";
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push @mirrors, "https://archive.apache.org/dist/$1";
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push @mirrors, "https://mirror.cogentco.com/pub/apache/$1";
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push @mirrors, "https://mirror.navercorp.com/apache/$1";
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push @mirrors, "https://ftp.jaist.ac.jp/pub/apache/$1";
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push @mirrors, "https://apache.cs.utah.edu/apache.org/$1";
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push @mirrors, "http://apache.mirrors.ovh.net/ftp.apache.org/dist/$1";
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push @mirrors, "https://mirrors.tuna.tsinghua.edu.cn/apache/$1";
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push @mirrors, "https://mirrors.ustc.edu.cn/apache/$1";
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} elsif ($mirror =~ /^\@GITHUB\/(.+)$/) {
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# give github a few more tries (different mirrors)
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for (1 .. 5) {
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push @mirrors, "https://raw.githubusercontent.com/$1";
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}
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} elsif ($mirror =~ /^\@GNU\/(.+)$/) {
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push @mirrors, "https://mirror.csclub.uwaterloo.ca/gnu/$1";
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push @mirrors, "https://mirror.netcologne.de/gnu/$1";
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push @mirrors, "https://ftp.kddilabs.jp/GNU/gnu/$1";
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push @mirrors, "https://www.nic.funet.fi/pub/gnu/gnu/$1";
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push @mirrors, "https://mirror.navercorp.com/gnu/$1";
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push @mirrors, "https://mirrors.rit.edu/gnu/$1";
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push @mirrors, "https://ftp.gnu.org/gnu/$1";
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push @mirrors, "https://mirrors.tuna.tsinghua.edu.cn/gnu/$1";
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push @mirrors, "https://mirrors.ustc.edu.cn/gnu/$1";
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} elsif ($mirror =~ /^\@SAVANNAH\/(.+)$/) {
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push @mirrors, "https://mirror.netcologne.de/savannah/$1";
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push @mirrors, "https://mirror.csclub.uwaterloo.ca/nongnu/$1";
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push @mirrors, "https://ftp.acc.umu.se/mirror/gnu.org/savannah/$1";
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push @mirrors, "https://nongnu.uib.no/$1";
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push @mirrors, "https://cdimage.debian.org/mirror/gnu.org/savannah/$1";
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} elsif ($mirror =~ /^\@KERNEL\/(.+)$/) {
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my @extra = ( $1 );
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if ($filename =~ /linux-\d+\.\d+(?:\.\d+)?-rc/) {
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push @extra, "$extra[0]/testing";
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} elsif ($filename =~ /linux-(\d+\.\d+(?:\.\d+)?)/) {
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push @extra, "$extra[0]/longterm/v$1";
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}
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foreach my $dir (@extra) {
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push @mirrors, "https://cdn.kernel.org/pub/$dir";
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push @mirrors, "https://mirrors.mit.edu/kernel/$dir";
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push @mirrors, "http://ftp.nara.wide.ad.jp/pub/kernel.org/$dir";
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push @mirrors, "http://www.ring.gr.jp/archives/linux/kernel.org/$dir";
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push @mirrors, "https://ftp.riken.jp/Linux/kernel.org/$dir";
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push @mirrors, "https://www.mirrorservice.org/sites/ftp.kernel.org/pub/$dir";
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push @mirrors, "https://mirrors.ustc.edu.cn/kernel.org/$dir";
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}
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} elsif ($mirror =~ /^\@GNOME\/(.+)$/) {
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push @mirrors, "https://download.gnome.org/sources/$1";
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push @mirrors, "https://mirror.csclub.uwaterloo.ca/gnome/sources/$1";
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push @mirrors, "https://ftp.acc.umu.se/pub/GNOME/sources/$1";
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push @mirrors, "http://ftp.cse.buffalo.edu/pub/Gnome/sources/$1";
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push @mirrors, "http://ftp.nara.wide.ad.jp/pub/X11/GNOME/sources/$1";
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push @mirrors, "https://mirrors.ustc.edu.cn/gnome/sources/$1";
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} else {
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push @mirrors, $mirror;
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}
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}
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push @mirrors, 'https://sources.cdn.openwrt.org';
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push @mirrors, 'https://sources.openwrt.org';
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push @mirrors, 'https://mirror2.openwrt.org/sources';
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if (-f "$target/$filename") {
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$hash_cmd and do {
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if (system("cat '$target/$filename' | $hash_cmd > '$target/$filename.hash'")) {
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die "Failed to generate hash for $filename\n";
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}
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my $sum = `cat "$target/$filename.hash"`;
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$sum =~ /^(\w+)\s*/ or die "Could not generate file hash\n";
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$sum = $1;
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cleanup();
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exit 0 if $sum eq $file_hash;
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die "Hash of the local file $filename does not match (file: $sum, requested: $file_hash) - deleting download.\n";
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unlink "$target/$filename";
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};
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}
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$download_tool = select_tool();
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while (!-f "$target/$filename") {
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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, $url_filename, @mirrors);
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if (!-f "$target/$filename" && $url_filename ne $filename) {
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download($mirror, $filename, @mirrors);
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}
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}
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$SIG{INT} = \&cleanup;
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