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-rwxr-xr-xopenwrt/scripts/download.pl76
1 files changed, 76 insertions, 0 deletions
diff --git a/openwrt/scripts/download.pl b/openwrt/scripts/download.pl
new file mode 100755
index 0000000000..a3a5f09d9e
--- /dev/null
+++ b/openwrt/scripts/download.pl
@@ -0,0 +1,76 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+
+my $target = shift @ARGV;
+my $filename = shift @ARGV;
+my $md5sum = shift @ARGV;
+my @mirrors = @ARGV;
+
+my $ok;
+
+@mirrors > 0 or die "Syntax: $0 <target dir> <filename> <md5sum> <mirror> [<mirror> ...]\n";
+
+sub download
+{
+ my $mirror = shift;
+
+ open WGET, "wget -t1 --connect-timeout=20 --read-timeout=15 -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
+ open MD5SUM, "| md5sum > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
+ open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
+ my $buffer;
+ while (read WGET, $buffer, 1048576) {
+ print MD5SUM $buffer;
+ print OUTPUT $buffer;
+ }
+ close MD5SUM;
+ close WGET;
+ close OUTPUT;
+
+ if (($? >> 8) != 0 ) {
+ print STDERR "Download failed.\n";
+ cleanup();
+ return;
+ }
+
+ my $sum = `cat "$target/$filename.md5sum"`;
+ $sum =~ /^(\w+)\s+/ or die "Could not generate md5sum\n";
+ $sum = $1;
+
+ if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
+ print STDERR "MD5 sum of the downloaded file does not match - deleting download.\n";
+ cleanup();
+ return;
+ }
+
+ unlink "$target/$filename";
+ system("mv \"$target/$filename.dl\" \"$target/$filename\"");
+}
+
+sub cleanup
+{
+ unlink "$target/$filename.dl";
+ unlink "$target/$filename.md5sum";
+}
+
+while (!$ok) {
+ my $mirror = shift @mirrors;
+ $mirror or die "No more mirrors to try - giving up.\n";
+
+ if ($mirror =~ /^\@SF\/(.+)$/) {
+ my $sfpath = $1;
+ open SF, "wget -t1 -q -O- 'http://prdownloads.sf.net/$sfpath/$filename' |";
+ while (<SF>) {
+ /RADIO NAME=use_default VALUE=(\w+) OnClick="form\.submit\(\)">/ and do {
+ push @mirrors, "http://$1.dl.sourceforge.net/sourceforge/$sfpath";
+ };
+ }
+ close SF;
+ } else {
+ download($mirror);
+ }
+ -f "$target/$filename" and $ok = 1;
+}
+
+$SIG{INT} = \&cleanup;
+