#!/bin/sh -efu

test "$(id -n -u)" = php_roundcube

IFS=: read -r user password
IFS=@ read -r user domain <<-EOF
	$user
	EOF
test "${user:+set}"
test "${domain:+set}"
test "${password:+set}"

umask 0077
dir_passwd=/etc/dovecot/"$domain"
old_passwd="$dir_passwd"/passwd
new_passwd=$(TMPDIR= /bin/mktemp --tmpdir="$dir_passwd" -t "passwd.XXXXXXXX.tmp")
return=1
while IFS=: read <&4 -r passwd_user passwd_password passwd_x
 do
	case "$passwd_user" in
	 ("$user")
		return=0
		/bin/cat >&3 <<-EOF
			$user:$(/usr/bin/doveadm pw -s SHA512-CRYPT -p "$password"):$passwd_x
			EOF
		;;
	 ('') : ;;
	 (*)
		/bin/cat >&3 <<-EOF
			$passwd_user:$passwd_password:$passwd_x
			EOF
		;;
	 esac
 done 3>"$new_passwd" 4<<-EOF
	$(/bin/cat "$old_passwd")
	EOF
/bin/mv -f "$new_passwd" "$old_passwd"
exit $return