# -*-shell-script-*-
# This should be sourced by bash (though we welcome changes to make it POSIX sh compliant)

# Monkeysphere host revoke-hostname subcommand
#
# The monkeysphere scripts are written by:
# Jameson Rollins <jrollins@finestructure.net>
# Jamie McClelland <jm@mayfirst.org>
# Daniel Kahn Gillmor <dkg@fifthhorseman.net>
#
# They are Copyright 2008-2009, and are all released under the GPL,
# version 3 or later.

# revoke hostname user ID from host key

revoke_hostname() {

local userID
local fingerprint
local tmpuidMatch
local line
local uidIndex
local message
local revuidCommand

if [ -z "$1" ] ; then
    failure "You must specify a hostname to revoke."
fi

echo "WARNING: There is a known bug in this function."
echo "This function has been known to occasionally revoke the wrong user ID."
echo "Please see the following bug report for more information:"
echo "https://labs.riseup.net/code/issues/show/422"
read -p "Are you sure you would like to proceed? (y/N) " OK; OK=${OK:=N}
if [ ${OK/y/Y} != 'Y' ] ; then
    failure "aborting."
fi

userID="ssh://${1}"

# make sure the user ID to revoke
uidIndex=$(find_host_userid) || \
    failure "No non-revoked user ID found matching '$userID'."

if [ "$PROMPT" = "true" ] ; then
    echo "The following host key user ID will be revoked:"
    echo "  $userID"
    read -p "Are you sure you would like to revoke this user ID? (N/y) " OK; OK=${OK:=Y}
    if [ "${OK/y/Y}" != 'Y' ] ; then
	failure "User ID not revoked."
    fi
else
    log debug "revoking user ID without prompting."
fi

# edit-key script command to revoke user ID
revuidCommand=$(cat <<EOF
$uidIndex
revuid
y
4
Hostname removed by monkeysphere-host: $DATE

y
save
EOF
    )	

# execute edit-key script
if echo "$revuidCommand" | gpg_host_edit ; then

    update_gpg_pub_file

    show_key

    echo
    echo "NOTE: User ID revoked, but revocation not published."
    echo "Run '$PGRM publish-key' to publish the revocation."
else
    failure "Problem revoking user ID."
fi

}