--- loncom/Lond.pm 2021/02/10 15:08:14 1.8.2.2 +++ loncom/Lond.pm 2019/07/11 18:12:01 1.15 @@ -1,6 +1,6 @@ # The LearningOnline Network # -# $Id: Lond.pm,v 1.8.2.2 2021/02/10 15:08:14 raeburn Exp $ +# $Id: Lond.pm,v 1.15 2019/07/11 18:12:01 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -37,7 +37,10 @@ use lib '/home/httpd/lib/perl/'; use LONCAPA; use Apache::lonnet; use GDBM_File; - +use MIME::Base64; +use Crypt::OpenSSL::X509; +use Crypt::X509::CRL; +use Crypt::PKCS10; sub dump_with_regexp { my ( $tail, $clientversion ) = @_; @@ -811,23 +814,214 @@ sub is_course { return $iscourse; } -sub get_dom { - my ($userinput) = @_; - my ($cmd,$udom,$namespace,$what) =split(/:/,$userinput,4); - my $hashref = &tie_domain_hash($udom,$namespace,&GDBM_READER()) or - return "error: ".($!+0)." tie(GDBM) Failed while attempting $cmd"; - my $qresult=''; - if (ref($hashref)) { - chomp($what); - my @queries=split(/\&/,$what); - for (my $i=0;$i<=$#queries;$i++) { - $qresult.="$hashref->{$queries[$i]}&"; +sub server_certs { + my ($perlvar,$lonhost,$hostname) = @_; + my %pemfiles = ( + key => 'lonnetPrivateKey', + host => 'lonnetCertificate', + hostname => 'lonnetHostnameCertificate', + ca => 'lonnetCertificateAuthority', + crl => 'lonnetCertRevocationList', + ); + my (%md5hash,%expected_cn,%expired,%revoked,%wrongcn,%info,$crlfile,$cafile, + %rvkcerts,$numrvk); + %info = ( + key => {}, + ca => {}, + host => {}, + hostname => {}, + crl => {}, + ); + my @ordered = ('crl','key','ca','host','hostname'); + if (ref($perlvar) eq 'HASH') { + $expected_cn{'host'} = $Apache::lonnet::serverhomeIDs{$hostname}; + $expected_cn{'hostname'} = 'internal-'.$hostname; + my $certsdir = $perlvar->{'lonCertificateDirectory'}; + if (-d $certsdir) { + $crlfile = $certsdir.'/'.$perlvar->{$pemfiles{'crl'}}; + $cafile = $certsdir.'/'.$perlvar->{$pemfiles{'ca'}}; + foreach my $key (@ordered) { + if ($perlvar->{$pemfiles{$key}}) { + my $file = $certsdir.'/'.$perlvar->{$pemfiles{$key}}; + if (-e $file) { + if ($key eq 'crl') { + if ((-e $crlfile) && (-e $cafile)) { + if (open(PIPE,"openssl crl -in $crlfile -inform pem -CAfile $cafile -noout 2>&1 |")) { + my $crlstatus = ; + close(PIPE); + chomp($crlstatus); + if ($crlstatus =~ /OK/) { + $info{$key}{'status'} = 'ok'; + $info{$key}{'details'} = 'CRL valid for CA'; + } + } + } + if (open(my $fh,'<',$crlfile)) { + my $pem_crl = ''; + while (my $line=<$fh>) { + chomp($line); + next if ($line eq '-----BEGIN X509 CRL-----'); + next if ($line eq '-----END X509 CRL-----'); + $pem_crl .= $line; + } + close($fh); + my $der_crl = MIME::Base64::decode_base64($pem_crl); + if ($der_crl ne '') { + my $decoded = Crypt::X509::CRL->new( crl => $der_crl ); + if ($decoded->error) { + $info{$key}{'status'} = 'error'; + } elsif (ref($decoded)) { + $info{$key}{'start'} = $decoded->this_update; + $info{$key}{'end'} = $decoded->next_update; + $info{$key}{'alg'} = $decoded->SigEncAlg.' '.$decoded->SigHashAlg; + $info{$key}{'cn'} = $decoded->issuer_cn; + $info{$key}{'email'} = $decoded->issuer_email; + $info{$key}{'size'} = $decoded->signature_length; + my $rlref = $decoded->revocation_list; + if (ref($rlref) eq 'HASH') { + foreach my $key (keys(%{$rlref})) { + my $hkey = sprintf("%X",$key); + $rvkcerts{$hkey} = 1; + } + $numrvk = scalar(keys(%{$rlref})); + if ($numrvk) { + $info{$key}{'details'} .= " ($numrvk revoked)"; + } + } + } + } + } + } elsif ($key eq 'key') { + if (open(PIPE,"openssl rsa -noout -in $file -check |")) { + my $check = ; + close(PIPE); + chomp($check); + $info{$key}{'status'} = $check; + } + if (open(PIPE,"openssl rsa -noout -modulus -in $file | openssl md5 |")) { + $md5hash{$key} = ; + close(PIPE); + chomp($md5hash{$key}); + } + } else { + if ($key eq 'ca') { + if (open(PIPE,"openssl verify -CAfile $file $file |")) { + my $check = ; + close(PIPE); + chomp($check); + if ($check eq "$file: OK") { + $info{$key}{'status'} = 'ok'; + } else { + $check =~ s/^\Q$file\E\:?\s*//; + $info{$key}{'status'} = $check; + } + } + } else { + if (open(PIPE,"openssl x509 -noout -modulus -in $file | openssl md5 |")) { + $md5hash{$key} = ; + close(PIPE); + chomp($md5hash{$key}); + } + } + my $x509 = Crypt::OpenSSL::X509->new_from_file($file); + my @items = split(/,\s+/,$x509->subject()); + foreach my $item (@items) { + my ($name,$value) = split(/=/,$item); + if ($name eq 'CN') { + $info{$key}{'cn'} = $value; + } + } + $info{$key}{'start'} = $x509->notBefore(); + $info{$key}{'end'} = $x509->notAfter(); + $info{$key}{'alg'} = $x509->sig_alg_name(); + $info{$key}{'size'} = $x509->bit_length(); + $info{$key}{'email'} = $x509->email(); + $info{$key}{'serial'} = uc($x509->serial()); + $info{$key}{'issuerhash'} = $x509->issuer_hash(); + if ($x509->checkend(0)) { + $expired{$key} = 1; + } + if (($key eq 'host') || ($key eq 'hostname')) { + if ($info{$key}{'cn'} ne $expected_cn{$key}) { + $wrongcn{$key} = 1; + } + if (($numrvk) && ($info{$key}{'serial'})) { + if ($rvkcerts{$info{$key}{'serial'}}) { + $revoked{$key} = 1; + } + } + } + } + } + if (($key eq 'host') || ($key eq 'hostname')) { + my $csrfile = $file; + $csrfile =~ s/\.pem$/.csr/; + if (-e $csrfile) { + if (open(PIPE,"openssl req -noout -modulus -in $csrfile |openssl md5 |")) { + my $csrhash = ; + close(PIPE); + chomp($csrhash); + if ((!-e $file) || ($csrhash ne $md5hash{$key}) || ($expired{$key}) || + ($wrongcn{$key}) || ($revoked{$key})) { + Crypt::PKCS10->setAPIversion(1); + my $decoded = Crypt::PKCS10->new( $csrfile,(PEMonly => 1, readFile => 1)); + if (ref($decoded)) { + if ($decoded->commonName() eq $expected_cn{$key}) { + $info{$key.'-csr'}{'cn'} = $decoded->commonName(); + $info{$key.'-csr'}{'alg'} = $decoded->pkAlgorithm(); + $info{$key.'-csr'}{'email'} = $decoded->emailAddress(); + my $params = $decoded->subjectPublicKeyParams(); + if (ref($params) eq 'HASH') { + $info{$key.'-csr'}{'size'} = $params->{keylen}; + } + $md5hash{$key.'-csr'} = $csrhash; + } + } + } + } + } + } + } + } } - $qresult=~s/\&$//; } - &untie_user_hash($hashref) or - return "error: ".($!+0)." untie(GDBM) Failed while attempting $cmd"; - return $qresult; + foreach my $key ('host','hostname') { + if ($md5hash{$key}) { + if ($md5hash{$key} eq $md5hash{'key'}) { + if ($revoked{$key}) { + $info{$key}{'status'} = 'revoked'; + } elsif ($expired{$key}) { + $info{$key}{'status'} = 'expired'; + } elsif ($wrongcn{$key}) { + $info{$key}{'status'} = 'wrongcn'; + } elsif ((exists($info{'ca'}{'issuerhash'})) && + ($info{'ca'}{'issuerhash'} ne $info{$key}{'issuerhash'})) { + $info{$key}{'status'} = 'mismatch'; + } else { + $info{$key}{'status'} = 'ok'; + } + } elsif ($info{'key'}{'status'} =~ /ok/) { + $info{$key}{'status'} = 'otherkey'; + } else { + $info{$key}{'status'} = 'nokey'; + } + } + if ($md5hash{$key.'-csr'}) { + if ($md5hash{$key.'-csr'} eq $md5hash{'key'}) { + $info{$key.'-csr'}{'status'} = 'ok'; + } elsif ($info{'key'}{'status'} =~ /ok/) { + $info{$key.'-csr'}{'status'} = 'otherkey'; + } else { + $info{$key.'-csr'}{'status'} = 'nokey'; + } + } + } + my $result; + foreach my $key (keys(%info)) { + $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($info{$key}).'&'; + } + $result =~ s/\&$//; + return $result; } 1; @@ -952,18 +1146,7 @@ courseID -- for the course for which the The contents of the inner hash, for that single item in the outer hash are returned (and cached in memcache for 10 minutes). -=item get_dom ( $userinput ) -get_dom() will retrieve domain configuration information from a GDBM file -in /home/httpd/lonUsers/$dom on the primary library server in a domain. -The single argument passed is the string: $cmd:$udom:$namespace:$what -where $cmd is the command historically passed to lond - i.e., getdom -or egetdom, $udom is the domain, $namespace is the name of the GDBM file -(encconfig or configuration), and $what is a string containing names of -items to retrieve from the db file (each item name is escaped and separated -from the next item name with an ampersand). The return value is either: -error: followed by an error message, or a string containing the value (escaped) -for each item, again separated from the next item with an ampersand. =back