docker-mailserver/target/bin/updatemailuser
Nathan Pierce be35d9bef1
Lock file create and remove improvements (#2183)
* changed the locking function to better support multiple servers running at once and sharing the same config

* helper function testing now runs inside of container

Co-authored-by: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
2021-09-13 20:09:01 +12:00

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#! /bin/bash
# ? This is done to ignore the message "Make sure not to read and write
# ? the same file in the same pipeline", which is a result of ${DATABASE}
# ? being used below. (This disables the message file-wide.)
# shellcheck disable=SC2094
# shellcheck source=../scripts/helper-functions.sh
. /usr/local/bin/helper-functions.sh
DATABASE=${DATABASE:-/tmp/docker-mailserver/postfix-accounts.cf}
USER="${1}"
shift
PASSWD="${*}"
function usage { echo "Usage: updatemailuser <user@domain.tld> [password]" ; }
[[ -z ${USER} ]] && { usage ; errex "no username specified" ; }
if [[ -z ${PASSWD} ]]
then
read -r -s -p "Enter Password: " PASSWD
echo
[[ -z ${PASSWD} ]] && errex "Password must not be empty"
fi
HASH="$(doveadm pw -s SHA512-CRYPT -u "${USER}" -p "${PASSWD}")"
touch "${DATABASE}"
create_lock # Protect config file with lock to avoid race conditions
grep -qi "^$(escape "${USER}")|" "${DATABASE}" 2>/dev/null || errex "User \"${USER}\" does not exist"
sed -i "s ^""${USER}""|.* ""${USER}""|""${HASH}"" " "${DATABASE}"