onak-mail.pl

   1 #!/usr/bin/perl -w
   2
   3 #
   4 # onak-mail.pl - Mail processing interface for onak, an OpenPGP Keyserver.
   5 #
   6 # Written by Jonathan McDowell <noodles@earth.li>
   7 # Copyright 2002 Project Purple
   8 # Released under the GPL.
   9 #
  10
  11 use strict;
  12 use IPC::Open3;
  13
  14 my %config;
  15
  16 #
  17 # readconfig
  18 #
  19 # Reads in our config file. Ignores any command it doesn't understand rather
  20 # than having to list all the ones that are of no interest to us.
  21 #
  22 sub readconfig {
  23
  24         open(CONFIG, "/home/noodles/projects/onak/onak.conf") or
  25                 die "Can't read config file: $!";
  26
  27         while (<CONFIG>) {
  28                 if (/^#/ or /^$/) {
  29                         # Ignore; comment line.
  30                 } elsif (/^this_site (.*)/) {
  31                         $config{'thissite'} = $1;
  32                 } elsif (/^maintainer_email (.*)/) {
  33                         $config{'adminemail'} = $1;
  34                 } elsif (/^mail_delivery_client (.*)/) {
  35                         $config{'mta'} = $1;
  36                 } elsif (/^syncsite (.*)/) {
  37                         push @{$config{'syncsites'}}, $1;
  38                 }
  39         }
  40
  41         close(CONFIG);
  42
  43         return;
  44 }
  45
  46 #
  47 # submitupdate
  48 #
  49 # Takes an armored OpenPGP stream and submits it to the keyserver. Returns the
  50 # difference between what we just added and what we had before (ie the least
  51 # data need to get from what we had to what we have).
  52 #
  53 sub submitupdate {
  54         my @data = @_;
  55         my (@errors, @mergedata);
  56
  57         open3(\*MERGEIN, \*MERGEOUT, \*MERGEERR,
  58                 "/home/noodles/onak-0.0.3/onak", "-u", "add");
  59
  60         print MERGEIN @data;
  61         close MERGEIN;
  62         @mergedata = <MERGEOUT>;
  63         @errors = <MERGEERR>;
  64
  65         open (LOG, ">>/home/noodles/onak-0.0.3/keyadd.log");
  66         print LOG "[".localtime(time)."] ", @errors;
  67         close LOG;
  68
  69         return @mergedata;
  70 }
  71
  72 my ($inheader, %seenby, $subject, $from, $replyto, @body, @syncmail);
  73
  74 $inheader = 1;
  75 $subject = "";
  76 &readconfig;
  77
  78 while (<>) {
  79         if ($inheader) {
  80                 if (/^Subject:\s*(.*)\s*$/i) {
  81                         $subject = $1;
  82                 } elsif (/^X-KeyServer-Sent:\s*(.*)\s*$/i) {
  83                         $seenby{$1} = 1;
  84                 } elsif (/^From:\s*(.*)\s*$/i) {
  85                         $from = $1;
  86                 } elsif (/^Reply-To:\s*(.*)\s*$/i) {
  87                         $replyto = $1;
  88                 } elsif (/^$/) {
  89                         $inheader = 0;
  90                 }
  91         }
  92         if (!$inheader) {
  93                 push @body, $_;
  94         }
  95 }
  96
  97 # HELP, ADD, INCREMENTAL, VERBOSE INDEX <keyid>, INDEX <keyid>, GET <keyid>,
  98 # LAST <days>
  99
 100 if ($subject =~ /^INCREMENTAL$/i) {
 101         my $site;
 102         my $count;
 103         my $i;
 104         my @newupdate = submitupdate(@body);
 105
 106         $count = 0;
 107         foreach $i (@{$config{'syncsites'}}) {
 108                 if (! defined($seenby{$i})) {
 109                         $count++;
 110                 }
 111         }
 112
 113         open (LOG, ">>/home/noodles/logs/keyadd.log");
 114         print LOG "[".localtime(time)."] Syncing with $count sites.\n";
 115         close LOG;
 116
 117         if ($newupdate[0] eq '') {
 118                 open (LOG, ">>/home/noodles/logs/keyadd.log");
 119                 print LOG "[".localtime(time)."] Nothing to sync.\n";
 120                 close LOG;
 121                 $count = 0;
 122         }
 123
 124         if ($count > 0) {
 125                 open(MAIL, "|$config{mta}");
 126                 print MAIL "From: $config{adminemail}\n";
 127                 print MAIL "To: ";
 128                 foreach $i (@{$config{'syncsites'}}) {
 129                         if (! defined($seenby{$i})) {
 130                                 print MAIL "$i";
 131                                 $count--;
 132                                 if ($count > 0) {
 133                                         print MAIL ", ";
 134                                 }
 135                         }
 136                 }
 137                 print MAIL "\n";
 138                 print MAIL "Subject: incremental\n";
 139                 foreach $site (keys %seenby) {
 140                         print MAIL "X-KeyServer-Sent: $site\n";
 141                 }
 142                 print MAIL "X-KeyServer-Sent: $config{thissite}\n";
 143                 print MAIL "Precedence: list\n";
 144                 print MAIL "MIME-Version: 1.0\n";
 145                 print MAIL "Content-Type: application/pgp-keys\n";
 146                 print MAIL "\n";
 147                 print @newupdate;
 148                 close MAIL;
 149         }
 150 }