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#!/bin/sh
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
main()
{
WRAPPER_BINS_NORMALIZED="$(mktemp)"
WRAPPER_ETCFILE="$HOME/.local/etc/wrapper.d/${0##*/}.rc"
if [ ! -f "$WRAPPER_ETCFILE" ]
then
printf "No configuration for %s found at %s\n" \
"${0##*/}" \
"$WRAPPER_ETCFILE" \
>&2
exit 3
fi
# shellcheck disable=SC1090
. "$WRAPPER_ETCFILE"
# Turn all WRAPPER_BINS entries into full paths
for bin in ${WRAPPER_BINS:-${0##*/}}
do
case "$bin" in
./*|/*)
printf "%s\n" "$bin"
;;
*)
printf "%s" "$PATH" | sed 's/:/\n/g' | while read -r path
do
full_path="$(printf "%s/%s\n" "$path" "$bin")"
# Filter out any paths that refer to
# the wrapper script itself. This
# should ensure it won't call itself
# into perpetuity.
if [ "$full_path" = "$0" ]
then
continue
fi
printf "%s\n" "$full_path"
done
esac
done > "$WRAPPER_BINS_NORMALIZED"
# Clear some stray variables
unset bin
unset full_path
unset path
# Loop over all possible wrapped options, and run the first one that is
# executable
while read -r WRAPPER_CMD
do
[ -x "$WRAPPER_CMD" ] || continue
# Add a firejail wrapper if desired
if [ -n "$FIREJAIL_PROFILE" ]
then
WRAPPER_CMD="firejail --profile=""$FIREJAIL_PROFILE"" -- $WRAPPER_CMD"
fi
# Optionally add WRAPPER_OPTS, so theres no double space in
# case it is empty.
if [ -n "$WRAPPER_OPTS" ]
then
WRAPPER_CMD="$WRAPPER_CMD $(printf "%s" "$WRAPPER_OPTS" | tr "\n" " " | awk '{$1=$1};1')"
fi
# Run all the things we want to run
wrap_before
wrap_log "> $WRAPPER_CMD $*"
$WRAPPER_CMD "$@"
WRAPPER_EXITCODE=$?
wrap_after
return $WRAPPER_EXITCODE
done < "$WRAPPER_BINS_NORMALIZED"
printf "No underlying executable found for %s:\n" "${0##*/}" >&2
for bin in $WRAPPER_BINS
do
printf "\t%s\n" "$bin" >&2
done
}
wrap_log() {
printf "[%s] %s\n" "$(date -u +%FT%TZ)" "$*" >&2
}
wrap_before() { :; }
wrap_after() { :; }
main "$@"
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