--- /dev/null
+#!/usr/bin/perl -w
+#
+# onak-mail.pl - Mail processing interface for onak, an OpenPGP Keyserver.
+#
+# Written by Jonathan McDowell <noodles@earth.li>
+# Copyright 2002 Project Purple
+# Released under the GPL.
+#
+
+use strict;
+use Fcntl ':flock';
+use IPC::Open3;
+
+my %config;
+
+#
+# readconfig
+#
+# Reads in our config file. Ignores any command it doesn't understand rather
+# than having to list all the ones that are of no interest to us.
+#
+sub readconfig {
+
+ open(CONFIG, "@CONFIG@") or
+ die "Can't read config file: $!";
+
+ while (<CONFIG>) {
+ if (/^#/ or /^$/) {
+ # Ignore; comment line.
+ } elsif (/^this_site (.*)/) {
+ $config{'thissite'} = $1;
+ } elsif (/^logfile (.*)/) {
+ $config{'logfile'} = $1;
+ } elsif (/^maintainer_email (.*)/) {
+ $config{'adminemail'} = $1;
+ } elsif (/^mail_delivery_client (.*)/) {
+ $config{'mta'} = $1;
+ } elsif (/^pks_bin_dir (.*)/) {
+ $config{'pks_bin_dir'} = $1;
+ } elsif (/^db_dir (.*)/) {
+ $config{'db_dir'} = $1;
+ } elsif (/^syncsite (.*)/) {
+ push @{$config{'syncsites'}}, $1;
+ }
+ }
+
+ close(CONFIG);
+
+ return;
+}
+
+#
+# submitupdate
+#
+# Takes an armored OpenPGP stream and submits it to the keyserver. Returns the
+# difference between what we just added and what we had before (ie the least
+# data need to get from what we had to what we have).
+#
+sub submitupdate {
+ my @data = @_;
+ my (@errors, @mergedata);
+
+ open(LOCKFILE, '>'.$config{'db_dir'}.'/onak-mail.lck');
+ flock(LOCKFILE, LOCK_EX);
+ print LOCKFILE "$$";
+
+ open3(\*MERGEIN, \*MERGEOUT, \*MERGEERR,
+ $config{'pks_bin_dir'}."/onak", "-u", "add");
+
+ print MERGEIN @data;
+ close MERGEIN;
+ @mergedata = <MERGEOUT>;
+ close MERGEOUT;
+ @errors = <MERGEERR>;
+ close MERGEERR;
+
+ flock(LOCKFILE, LOCK_UN);
+ close(LOCKFILE);
+
+ return @mergedata;
+}
+
+my ($inheader, %seenby, $subject, $from, $replyto, @body, @syncmail);
+
+$inheader = 1;
+$subject = "";
+&readconfig;
+
+while (<>) {
+ if ($inheader) {
+ if (/^Subject:\s*(.*)\s*$/i) {
+ $subject = $1;
+ } elsif (/^X-KeyServer-Sent:\s*(.*)\s*$/i) {
+ $seenby{$1} = 1;
+ } elsif (/^From:\s*(.*)\s*$/i) {
+ $from = $1;
+ } elsif (/^Reply-To:\s*(.*)\s*$/i) {
+ $replyto = $1;
+ } elsif (/^$/) {
+ $inheader = 0;
+ }
+ }
+ if (!$inheader) {
+ push @body, $_;
+ }
+}
+if (! defined($replyto)) {
+ $replyto = $from;
+}
+
+# HELP, ADD, INCREMENTAL, VERBOSE INDEX <keyid>, INDEX <keyid>, GET <keyid>,
+# LAST <days>
+
+if ($subject =~ /^INCREMENTAL$/i) {
+ my $site;
+ my $count;
+ my $i;
+ my @newupdate = submitupdate(@body);
+ my @time;
+
+ $count = 0;
+ foreach $i (@{$config{'syncsites'}}) {
+ if (! defined($seenby{$i})) {
+ $count++;
+ }
+ }
+
+ open (LOG, ">>$config{'logfile'}");
+ @time = localtime(time);
+ print LOG "[";
+ print LOG sprintf "%02d/%02d/%04d %02d:%02d:%02d",
+ $time[3], $time[4] + 1, $time[5] + 1900,
+ $time[2], $time[1], $time[0];
+ print LOG "] onak-mail[$$]: Syncing with $count sites.\n";
+ close LOG;
+
+ if ((! defined($newupdate[0])) || $newupdate[0] eq '') {
+ open (LOG, ">>$config{'logfile'}");
+ print LOG "[";
+ print LOG sprintf "%02d/%02d/%04d %02d:%02d:%02d",
+ $time[3], $time[4] + 1, $time[5] + 1900,
+ $time[2], $time[1], $time[0];
+ print LOG "] onak-mail[$$]: Nothing to sync.\n";
+ close LOG;
+ $count = 0;
+ }
+
+ if ($count > 0) {
+ open(MAIL, "|$config{mta}");
+ print MAIL "From: $config{adminemail}\n";
+ print MAIL "To: ";
+ foreach $i (@{$config{'syncsites'}}) {
+ if (! defined($seenby{$i})) {
+ print MAIL "$i";
+ $count--;
+ if ($count > 0) {
+ print MAIL ", ";
+ }
+ }
+ }
+ print MAIL "\n";
+ print MAIL "Subject: incremental\n";
+ foreach $site (keys %seenby) {
+ print MAIL "X-KeyServer-Sent: $site\n";
+ }
+ print MAIL "X-KeyServer-Sent: $config{thissite}\n";
+ print MAIL "Precedence: list\n";
+ print MAIL "MIME-Version: 1.0\n";
+ print MAIL "Content-Type: application/pgp-keys\n";
+ print MAIL "\n";
+ print MAIL @newupdate;
+ close MAIL;
+ }
+} elsif ($subject =~ /^(VERBOSE )?INDEX (.*)$/i) {
+ my (@indexdata, $command);
+
+ $command = "index";
+ if (defined($1)) {
+ $command = "vindex";
+ }
+
+ open3(\*INDEXIN, \*INDEXOUT, \*INDEXERR,
+ $config{'pks_bin_dir'}."/onak", $command, "$2");
+ close INDEXIN;
+ @indexdata = <INDEXOUT>;
+ close INDEXOUT;
+ close INDEXERR;
+
+ open(MAIL, "|$config{mta}");
+ print MAIL "From: $config{adminemail}\n";
+ print MAIL "To: $replyto\n";
+ print MAIL "Subject: Reply to INDEX $2\n";
+ print MAIL "Precedence: list\n";
+ print MAIL "MIME-Version: 1.0\n";
+ print MAIL "Content-Type: text/plain\n";
+ print MAIL "\n";
+ print MAIL "Below follows the reply to your recent keyserver query:\n";
+ print MAIL "\n";
+ print MAIL @indexdata;
+ close MAIL;
+}