#!/bin/sh
# Prepare a printable list of keysigning participants.
# Useful for the party organiser.
#
# $Id$
#
# License: GPLv2 or later
# Copyright Philippe Teuwen <phil a teuwen o org> 2008

if [ $# -ne 5 ]; then
    cat <<EOF
Usage: $0 input output datestring organizer title
Or:    $0 -     output datestring organizer title
       to read from STDIN
Example:
       echo 9AD7E3DB 54C12701 |\\
       $0 - ksp-file.txt "20080222 1100" "My Name <my.name@my.mail>" "my party 08"
EOF
    exit 0
fi

input="$1"
[ "$input" = "-" ] && input="";
output="$2"
date="$3"
org="$4"
title=$(echo "$5"|tr a-z A-Z|sed 's/\(.\)/\1 /g')

exec > "$output"

# Date of event
LANG=C date --date="$date" +"%A, %B %e, %Y;  %H:%M"
# Organiser contact
printf "%80s\n\n\n" "$org"
# Title
printf "%*s\n\n" $(((72+$(echo "$title"|wc -c))/2)) "$title"
# Header
cat <<EOF
                     List of Participants  (v 1.0)


Here's what you have to do with this file:
(1) Print this file to paper.
(2) Compute this file's SHA256 checksum.
      gpg --print-md sha256 $output       (or use sha256sum)
(3) Fill in the hash values on the printout.
(4) Bring the printout, a pen, and proof of identity to the key signing party
    (and be on time!).


SHA256 Checksum: ____ ____   ____ ____   ____ ____   ____ ____           [ ]

                 ____ ____   ____ ____   ____ ____   ____ ____


EOF

k=0;
for i in $(cat $input); do
    k=$(($k+1));
    printf "\n%03d  [ ] Fingerprint OK        [ ] ID OK\n" $k;
    gpg --fingerprint $i | grep -v "^sub" | \
    	grep -v '^uid.*jpeg image of size';
	echo "_______________________________________________________________________________"
done