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51 lines
1.5 KiB
Perl
Executable File
51 lines
1.5 KiB
Perl
Executable File
#!/usr/local/bin/perl
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# Called by the let's encrypt client to add a DNS record for validation
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$no_acl_check++;
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$ENV{'WEBMIN_CONFIG'} ||= "/etc/webmin";
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$ENV{'WEBMIN_VAR'} ||= "/var/webmin";
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if ($0 =~ /^(.*)\/[^\/]+$/) {
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chdir($pwd = $1);
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}
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else {
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chop($pwd = `pwd`);
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}
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$0 = "$pwd/letsencrypt-dns.pl";
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require './webmin-lib.pl';
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&foreign_require("bind8");
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# Validate params
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my $dname = $ENV{'CERTBOT_DOMAIN'};
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my $val = $ENV{'CERTBOT_VALIDATION'};
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$dname || die "Missing CERTBOT_DOMAIN environment variable";
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$val || die "Missing CERTBOT_VALIDATION environment variable";
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# Find the DNS domain and records
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my ($zone, $zname) = &get_bind_zone_for_domain($dname);
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$zone || die "No zone named $dname found";
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&lock_file(&bind8::make_chroot(&bind8::absolute_path($zone->{'file'})));
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my @recs = &bind8::read_zone_file($zone->{'file'}, $zname);
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# Remove any existing record
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my ($r) = grep { $_->{'name'} eq "_acme-challenge.".$dname."." } @recs;
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if ($r) {
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&bind8::delete_record($zone->{'file'}, $r);
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}
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# Create the needed DNS record
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&bind8::create_record($zone->{'file'},
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"_acme-challenge.".$dname.".",
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5,
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"IN",
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"TXT",
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$val);
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&bind8::bump_soa_record($zone->{'file'}, \@recs);
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&bind8::sign_dnssec_zone_if_key($zone, \@recs);
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&unlock_file(&bind8::make_chroot(&bind8::absolute_path($zone->{'file'})));
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# Apply the change
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&bind8::restart_zone($zone->{'name'}, $zone->{'view'});
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sleep($config{'letsencrypt_dns_wait'} || 10); # Wait for DNS propagation
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&webmin_log("letsencryptdns", undef, $dname);
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exit(0);
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