sshuserproxy/sshproxy_syncfile at master · micronet24/sshuserproxy · GitHub

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#!/bin/bash

for d in $SSHPROXY_CONF $HOME/.ssh /etc/ssh; do
	CNF="$d/proxy/syncfile.conf"
	if [ -n "$d" -a -f "$CNF" ]; then
		. "$CNF"
		break
	fi
done

if [ -z "${gateway}" ]; then
	echo "incomplete configuration"
	exit 1
fi

declare LOCALFILE REMOTEFILE

if [ -n "$1" ]; then
	LOCALFILE="$1"
else
	LOCALFILE="${localfile:-~/.ssh/authorized_keys2}"
fi

if [ -n "$2" ]; then
	REMOTEFILE="$2"
else
	REMOTEFILE="${remotefile:-${LOCALFILE}}"
fi

if [ "${LOCALFILE:0:2}" == "~/" ]; then
	LOCALFILE="${HOME}/${LOCALFILE:2}"
fi
if [ "${REMOTEFILE:0:2}" == "~/" ]; then
	REMOTEFILE="${REMOTEFILE:2}"
fi
if [ "${REMOTEFILE:0:$[${#HOME}+1]}" == "${HOME}/" ]; then
	REMOTEFILE="${REMOTEFILE:$[${#HOME}+1]}"
fi

if [ ! -f "${LOCALFILE}" ]; then
	echo "File '${LOCALFILE}' not found!"
	exit 1
fi

SHATOOL=sha256sum
SHAFILE="${LOCALFILE}.sum"
SHASUM=$(which ${SHATOOL})

if [ -z "${SHASUM}" -o \! -e "${SHASUM}" ]; then
	echo "${SHATOOL} not found"
	exit 1
fi

if [ -f "${SHAFILE}" ] && ${SHASUM} --check --quiet "${SHAFILE}"; then
	exit 0
fi

set -e

echo "put \"${LOCALFILE}\" \"${REMOTEFILE}\"" | sftp "${user:-$(id -un)}@${gateway}"

${SHASUM} "${LOCALFILE}" > "${SHAFILE}"