#!/usr/bin/env bash
##
# Copyright (C) 2013-2016 Janek Bevendorff
# Website: http://www.refining-linux.org/
# 
# Run a restricted command in an SSH session.
# 
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
##

home_dir=$1
export HOME="${home_dir}/files"
cd $HOME

if $(echo "${SSH_ORIGINAL_COMMAND}" | grep -q "^\(internal-sftp\|.*/sftp-server\)"); then
    [ -x /usr/lib/openssh/sftp-server ] && exec /usr/lib/openssh/sftp-server -R
    [ -x /usr/lib/ssh/sftp-server ] && exec /usr/lib/ssh/sftp-server -R
    [ -x /usr/libexec/sftp-server ] && exec /usr/libexec/sftp-server -R
    [ -x /opt/libexec/sftp-server ] && exec /opt/libexec/sftp-server -R
else
    RSYNC_OPTS="--server --daemon --config='$home_dir/rsync.conf' ."
    [ -x /usr/bin/rsync ] && exec /usr/bin/rsync $(eval echo $RSYNC_OPTS)
    [ -x /opt/bin/rsync ] && exec /opt/bin/rsync $(eval echo $RSYNC_OPTS)
fi

echo "Session failed." >&2
exit 1