-#!/usr/bin/perl
+#!/usr/bin/perl -w
#
# gpg-key2ps: convert a PGP/GnuPG key into paper slips.
+# Copyright (C) 2001-2005 Simon Richter and Thijs Kinkhorst
+# Licenced under the GNU General Public License,
+# version 2 or later.
#
# $Id$
-$version = '$Rev$';
+use strict;
+use Getopt::Std;
+
+my $version = '$Rev$';
$version =~ s/\$Rev:\s*(\d+)\s*\$/$1/;
-$usage = "Usage: $0 [-p papersize] [-r revoked-style] keyid-or-name\n";
-$keyids = "";
-$revokestyle="hide";
+my $usage = "Usage: $0 [-p papersize] [-r revoked-style] keyid-or-name\n";
+my $keyids = "";
+my $revokestyle="hide";
if ( $#ARGV < 0 ) {
print $usage;
exit 1;
}
-use Getopt::Std;
+# fetch command line parameters
+my %opts;
getopt('pr', \%opts);
if ( $opts{r} ) { $revokestyle = $opts{'r'}; }
if ( $opts{p} ) { $ENV{'PAPERSIZE'} = $opts{'p'}; }
exit 1;
}
+# determine default papersize through the paperconf tool
+my $w; my $h;
if ( -x "/usr/bin/paperconf" ) {
$w=`paperconf -w`;
$h=`paperconf -h`;
$h=842;
}
+# check if key exists
+# can't check that accurately through the 'open' call below
+# so have to run gpg twice). Please supply a better way.
+if ( system( "gpg --fingerprint $keyids >/dev/null" ) != 0 ) {
+ print STDERR "Key not found. Try 'gpg --list-keys'\n";
+ exit 1;
+}
+
+# open a gpg process we'll be reading from below
open(GPG, "gpg --fingerprint --with-colons $keyids |");
+# start the PostScript output
print <<EOF;
%!PS-Adobe-3.0
%%BoundingBox: 0 0 $w $h
EOF
+# output the desired display for revoked uids
if ( $revokestyle eq "grey" ) {
print "/revuid {\n";
print " .5 setgray\n";
noneedhline
EOF
-$numlines = 0;
+# walk the output of gpg line by line
+# $numlines has the total number of lines so we'll know how many to put on page
+my $numlines = 0;
while(<GPG>) {
+ # we don't use these
if ( /^(tru|uat):/ ) { next; }
+ # every primary uid causes an extra line because of the separator
if ( /^pub:/ ) { $numlines++; }
+ # primary uid
s/^pub:[^:]*:([^:]*):([0-9]*):.{8,8}(.{8,8}):([^:]*):[^:]*:[^:]*:[^:]*:([^:]*):[^:]*:[^:]*:.*/ ($5) ($4) ($3) $2 ($1) pub/;
+ # fingerprint, format it nicely with spaces
if ( /^fpr:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:([^:]*):.*/ ) {
- $fpr = $1;
+ my $fpr = $1;
# v4 key
$fpr =~ s/(\w{4})(\w{4})(\w{4})(\w{4})(\w{4})(\w{4})(\w{4})(\w{4})(\w{4})(\w{4})/$1 $2 $3 $4 $5 $6 $7 $8 $9 $10/;
# v3 key
$fpr =~ s/(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})(\w{2})/$1 $2 $3 $4 $5 $6 $7 $8 $9 $10 $11 $12 $13 $14 $15 $16/g;
$_ = " ($fpr) fpr\n";
}
+ # user id's
s/^uid:[^:r]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:([^:]*):.*/ ($1) uid/;
s/^uid:[^:r]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:([^:]*):.*/ ($1) uid/;
+ # revoked user id
s/^uid:r[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:([^:]*):.*/ ($1) revuid/;
+ # subkey
s/^sub:[^:]*:([^:]*):([0-9]*):.{8,8}(.{8,8}):([^:]*):[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:.*/ ($4) ($3) $2 ($1) sbk/;
$numlines++;
+ # print this line
print;
}
-$numlines -= 1;
-
close(GPG);
+# output the remaining postscript
print <<EOF;
} def
%%EOF
EOF
+# done!
+exit 0;
+
+
+__END__
+
+=head1 NAME
+
+B<gpg-key2ps> - generates a PS file from a GnuPG keyring
+
+=head1 SYNOPSIS
+
+B<gpg-key2ps> [-r I<revoked-style>] [-p I<papersize>] I<keyid>I<[> I<keyidI<[> I<...>I<]>>I<]>
+
+=head1 DESCRIPTION
+
+gpg-key2ps generates a PostScript file with your OpenPGP key fingerprint (repeated
+as often as it fits) useful for keysigning parties. The only argument is the same
+as you would pass to GPG's list-keys command, either a key-id or a (partial) name.
+The PS data is written to stdout.
+
+=head1 OPTIONS
+
+=over
+
+=item -p I<paper-size>
+
+Select the output paper size. Default is to look into /etc/papersize or A4 if
+libpaper isn't installed.
+
+=item -r I<revoked-style>
+
+Select how to mark revoked UIDs. Five styles are available:
+B<hide> (don't show at all),
+B<show> (show normally),
+B<grey> (display in 50% grey),
+B<note> (add a note), and
+B<strike> (strike through).
+
+=item I<keyid>
+
+Keyid's to print. Multiple can be separated by spaces.
+
+
+=back
+
+
+=head1 SEE ALSO
+
+gpg(1)
+
+http://pgp-tools.alioth.debian.org/
+
+=head1 AUTHORS AND COPYRIGHT
+
+(c) 2001 - 2005 Simon Richter <sjr@debian.org>
+
+(c) 2005 Thijs Kinkhorst <thijs@kinkhorst.com>