#!/bin/bash
##############################################################################
#
#  twiki-attach - A bash script for uploading several file in one operation
#  to any of the GSI supported wiki's driven by the TWiki software.
#
#  This script relies on BASH and CURL
#
#  Written by Christopher Huhn <c.huhn@gsi.de>
#  Enhanced by Simon Lang <s.lang@gsi.de>
#  19.07.2005
#
##############################################################################


function usage {
	cat >&2 <<EOF

 $(basename $0) - A batch upload tool for TWiki

 Synopsis:

   $(basename $0) [-u <name>] [-h] [-l] <location> <file1> [<file2> ...]

 Arguments:

   <location> : Selects the TWiki topic to which the files are attached.
                The syntax is  wiki[/.]web[/.]topic (dots or slashes are
                allowed.
                Currently  supported Wikis are: GSI, CBM and Hades. Wiki
                name are case insensitive - the others not!
                Example: gsi.Sandbox.TestTopic1
   -u <name>  : An alternative WikiName; otherwise  it defaults to  your
                name  as  it is  stored  in the linux password database.
   -h         : Hide the file in the topic's attachment table.
   -l         : Create a link to the attached file in the topic.
   <file1>    : The filename of the files being uploaded.

EOF
	exit 1
}


## processing of cmdline arguments
while getopts "u:c:hl" OPTION; do
	case $OPTION in
		u)
			USERNAME=$OPTARG
			;;
		c)
			COMMENT=$OPTARG
			;;
		h)
			OPTIONS="$OPTIONS -F hidefile=on"
			;;
		l)
			OPTIONS="$OPTIONS -F createlink=on"
			;;
		*)
			echo "Unknown argument -$OPTION" >&2
			usage
			;;
	esac
done
shift $(($OPTIND - 1))

## some defaults
[ "$USERNAME" ] || USERNAME=$(getent passwd $(whoami) | cut -f 5 -d ':' | cut -f 1 -d ',' | tr -d ' ')
[ "$COMMENT" ] || COMMENT="batch upload by $(whoami)@$(hostname)"

if [ -z "$USERNAME" ]; then
	echo
	echo "No wiki username could be guessed for $(whoami)" >&2
	usage
fi

[ -n "$1" ] || usage

# extract the wiki, web and topic name from the first commandline argument
LOCATION=$(echo $1 | tr '.' '/')
shift
if [ $(echo $LOCATION | egrep -c '^[^/]+/[^/]+/[^/]+$') -ne 1 ]; then
	echo
	echo "Incorrect location definition!" >&2
	usage
fi
WIKI=${LOCATION%%/*}
TOPIC=${LOCATION#*/}

# select URL prefix based on all GSI supported wiki names
case $WIKI in
[Hh][Aa][Dd][Ee][Ss])
	BASEURL="http://hades-wiki.gsi.de/cgi-bin/upload"
	;;
[Gg][Ss][Ii])
	BASEURL="http://wiki.gsi.de/cgi-bin/upload"
	;;
[Cc][Bb][Mm])
	BASEURL="http://cbm-wiki.gsi.de/cgi-bin/upload"
	;;
*)
	echo
	echo "Unkown Wiki!" >&2
	usage
	;;
esac

[ -n "$1" ] || usage

# fetch the user's password for all following upload operations - not very
# secure - but better than typing ten times the password!
echo -n "Enter TWiki password for user $USERNAME: "
read -s PASSWORD
echo

# upoad the stuff
OPTIONS="--user $USERNAME:$PASSWORD -F filecomment=\"$COMMENT\" $OPTIONS"
for FILE in $@; do
	eval "curl $OPTIONS -F filepath=@$FILE $BASEURL/$TOPIC"
done

# clean up
OPTIONS="_____oh_____yes_____this_____once_____was_____a_____password_____"
PASSWORD="_____oh_____yes_____this_____once_____was_____a_____password_____"
unset OPTIONS
unset PASSWORD