From dd80fde8411acecec2d470e9cce6fa533401f1fa Mon Sep 17 00:00:00 2001
From: Alexander Graf <ghostwheel42@users.noreply.github.com>
Date: Fri, 27 Jan 2023 13:55:10 +0100
Subject: [PATCH] Add script to purge disabled users.

---
 scripts/purge_user.sh | 79 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100755 scripts/purge_user.sh

diff --git a/scripts/purge_user.sh b/scripts/purge_user.sh
new file mode 100755
index 00000000..79e33be1
--- /dev/null
+++ b/scripts/purge_user.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# get id of running admin container
+admin="$(docker compose ps admin --format=json | jq -r '.[].ID')"
+if [[ -z "${admin}" ]]; then
+	echo "Sorry, can't find running mailu admin container."
+	echo "You need to start this in the path containing your docker-compose.yml."
+	exit 1
+fi
+
+# get storage path
+storage="$(
+	docker inspect "${admin}" \
+	| jq -r '.[].Mounts[] | select(.Destination == "/data") | .Source'
+)/.."
+storage="$(realpath "${storage}")"
+if [[ ! -d "${storage}" ]]; then
+	echo "Sorry, can't find mailu storage path."
+	exit 2
+fi
+
+# fetch list of users from admin
+declare -A users=()
+while read line; do
+	users[${line#* }]="${line/ *}"
+done < <(
+	docker compose exec -T admin \
+		flask mailu config-export -j user.email user.enabled \
+	2>/dev/null | jq -r '.user[] | "\(.enabled) \(.email)"'
+)
+if [[ ${#users[@]} -eq 0 ]]; then
+	echo "mailu config-export returned no users. Aborted."
+	exit 3
+fi
+
+# diff list of users <> storage
+unknown=false
+disabled=false
+for maildir in "${storage}"/mail/*; do
+	[[ -d "${maildir}" ]] || continue
+	email="${maildir/*\/}"
+	enabled="${users[${email}]:-}"
+	if [[ -z "${enabled}" ]]; then
+		unknown=true
+		users[${email}]="unknown"
+	elif ${enabled}; then
+		unset users[${email}]
+	else
+		disabled=true
+		users[${email}]="disabled"
+	fi
+done
+
+# output actions
+if [[ ${#users[@]} -eq 0 ]]; then
+	echo "Nothing to be done."
+	exit 0
+fi
+if ${unknown}; then
+	echo "# To delete maildirs unknown to mailu, run:"
+	for email in "${!users[@]}"; do
+		[[ "${users[${email}]}" == "unknown" ]] || continue
+		echo "rm -rf '${storage}/mail/${email}'"
+	done
+	echo
+fi
+if ${disabled}; then
+	webmail=true; docker compose ps webmail &>/dev/null || webmail=false
+	echo "# To purge disabled users, run:"
+	for email in "${!users[@]}"; do
+		[[ "${users[${email}]}" == "disabled" ]] || continue
+		echo -n "docker compose exec -T admin flask mailu user-delete -r '${email}' && rm -rf '${storage}/mail/${email}'"
+		${webmail} && \
+			echo -n " && docker compose exec -T webmail su mailu -c \"/var/www/roundcube/bin/deluser.sh --host=front '${email}'\""
+		echo
+	done
+	echo
+fi
+