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#!/usr/bin/env bash
# instant-rsyncd lets you quickly set up and start a simple, unprivileged rsync
# daemon with a single module in the current directory. I've found it
# invaluable for quick testing, and I use it when writing a list of commands
# that people can paste into a terminal to reproduce a daemon-related bug.
# Sysadmins deploying an rsync daemon for the first time may find it helpful as
# a starting point.
#
# Usage: instant-rsyncd MODULE PORT RSYNCD-USERNAME [RSYNC-PATH]
# The script asks for the rsyncd user's password twice on stdin, once to set it
# and once to log in to test the daemon.
# -- Matt McCutchen <matt@mattmccutchen.net>
set -e
dir="$(pwd)"
echo
echo "This will setup an rsync daemon in $dir"
if [ $# = 0 ]; then
IFS='' read -p 'Module name to create (or return to exit): ' module
[ ! "$module" ] && exit
else
module="$1"
shift
fi
if [ $# = 0 ]; then
IFS='' read -p 'Port number the daemon should listen on [873]: ' port
else
port="$1"
shift
fi
[ "$port" ] || port=873
if [ $# = 0 ]; then
IFS='' read -p 'User name for authentication (empty for none): ' user
else
user="$1"
shift
fi
if [ "$user" ]; then
IFS='' read -s -p 'Desired password: ' password
echo
fi
rsync="$1"
[ "$rsync" ] || rsync=rsync
moduledir="${dir%/}/$module"
mkdir "$module"
cat >rsyncd.conf <<EOF
log file = rsyncd.log
pid file = rsyncd.pid
port = $port
use chroot = no
[$module]
path = $module
read only = false
EOF
if [ "$user" ]; then
cat >>rsyncd.conf <<-EOF
auth users = $user
secrets file = $module.secrets
EOF
touch "$module".secrets
chmod go-rwx "$module".secrets
echo "$user:$password" >"$module".secrets
user="$user@"
fi
cat >start <<EOF
#!/bin/bash
set -e
cd \`dirname \$0\`
! [ -e rsyncd.pid ] || {
echo "Is the daemon already running? If not, delete rsyncd.pid."
exit 1
}
$rsync --daemon --config=rsyncd.conf
EOF
chmod +x start
cat >stop <<"EOF"
#!/bin/bash
set -e
cd `dirname $0`
! [ -e rsyncd.pid ] || kill -s SIGTERM $(< rsyncd.pid)
EOF
chmod +x stop
path="rsync://$user$(hostname):$port/$module/"
if ./start; then
sleep .2
echo
echo "I ran the start command for the daemon. The log file rsyncd.log says:"
echo
cat rsyncd.log
echo
echo "You can start and stop it with ./start and ./stop respectively."
echo "You can customize the configuration file rsyncd.conf."
echo
echo "Give rsync the following path to access the module:"
echo " $path"
echo
if [ "$user" ]; then
echo "Let's test the daemon now. Enter the password you chose at the prompt."
else
echo "Let's test the daemon now."
fi
echo
echo '$' $rsync --list-only "$path"
$rsync --list-only "$path"
echo
echo "You should see an empty folder; it's $moduledir."
else
echo "Something went wrong. Do you see an error message?"
fi
|
