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authorFelix Fietkau <nbd@openwrt.org>2016-01-16 00:19:41 +0000
committerFelix Fietkau <nbd@openwrt.org>2016-01-16 00:19:41 +0000
commiteaa4eba10a8978f6dce9c309e78aa154b15a296d (patch)
treec219f8d63906e32bfafb5932b0946852774241c0 /scripts
parent39f385d0d68a03e85f80a76c7665a9308d6aedd7 (diff)
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scripts/download.pl: add SHA-256 support
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48253
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/download.pl58
1 files changed, 38 insertions, 20 deletions
diff --git a/scripts/download.pl b/scripts/download.pl
index 6f28237..3b8b267 100755
--- a/scripts/download.pl
+++ b/scripts/download.pl
@@ -11,12 +11,12 @@ use warnings;
use File::Basename;
use File::Copy;
-@ARGV > 2 or die "Syntax: $0 <target dir> <filename> <md5sum> <url filename> [<mirror> ...]\n";
+@ARGV > 2 or die "Syntax: $0 <target dir> <filename> <hash> <url filename> [<mirror> ...]\n";
my $url_filename;
my $target = shift @ARGV;
my $filename = shift @ARGV;
-my $md5sum = shift @ARGV;
+my $file_hash = shift @ARGV;
$url_filename = shift @ARGV unless $ARGV[0] =~ /:\/\//;
my $scriptdir = dirname($0);
my @mirrors;
@@ -59,8 +59,20 @@ sub which($) {
return $res;
}
-my $md5cmd = which("md5sum") || which("md5") || die 'no md5 checksum program found, please install md5 or md5sum';
-chomp $md5cmd;
+sub hash_cmd() {
+ my $len = length($file_hash);
+ my $cmd;
+
+ $len == 64 and return "openssl dgst -sha256";
+ $len == 32 and do {
+ my $cmd = which("md5sum") || which("md5") || die 'no md5 checksum program found, please install md5 or md5sum';
+ chomp $cmd;
+ return $cmd;
+ };
+ return undef;
+}
+
+my $hash_cmd = hash_cmd();
sub download
{
@@ -105,20 +117,24 @@ sub download
print("Copying $filename from $link\n");
copy($link, "$target/$filename.dl");
- if (system("$md5cmd '$target/$filename.dl' > '$target/$filename.md5sum'")) {
- print("Failed to generate md5 sum for $filename\n");
- return;
- }
+ $hash_cmd and do {
+ if (system("$hash_cmd '$target/$filename.dl' > '$target/$filename.hash'")) {
+ print("Failed to generate hash for $filename\n");
+ return;
+ }
+ };
} else {
open WGET, "wget -t5 --timeout=20 --no-check-certificate $options -O- '$mirror/$url_filename' |" or die "Cannot launch wget.\n";
- open MD5SUM, "| $md5cmd > '$target/$filename.md5sum'" or die "Cannot launch md5sum.\n";
+ $hash_cmd and do {
+ open MD5SUM, "| $hash_cmd > '$target/$filename.hash'" or die "Cannot launch $hash_cmd.\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;
+ $hash_cmd and print MD5SUM $buffer;
print OUTPUT $buffer;
}
- close MD5SUM;
+ $hash_cmd and close MD5SUM;
close WGET;
close OUTPUT;
@@ -129,15 +145,17 @@ sub download
}
}
- my $sum = `cat "$target/$filename.md5sum"`;
- $sum =~ /^(\w+)\s*/ or die "Could not generate md5sum\n";
- $sum = $1;
+ $hash_cmd and do {
+ my $sum = `cat "$target/$filename.hash"`;
+ $sum =~ /^(\w+)\s*/ or die "Could not generate file hash\n";
+ $sum = $1;
- if (($md5sum =~ /\w{32}/) and ($sum ne $md5sum)) {
- print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $md5sum) - deleting download.\n";
- cleanup();
- return;
- }
+ if ($sum ne $file_hash) {
+ print STDERR "MD5 sum of the downloaded file does not match (file: $sum, requested: $file_hash) - deleting download.\n";
+ cleanup();
+ return;
+ }
+ };
unlink "$target/$filename";
system("mv", "$target/$filename.dl", "$target/$filename");
@@ -147,7 +165,7 @@ sub download
sub cleanup
{
unlink "$target/$filename.dl";
- unlink "$target/$filename.md5sum";
+ unlink "$target/$filename.hash";
}
@mirrors = localmirrors();