From ed24d51d3e30c10e2ef0890ffb43a9838adf3190 Mon Sep 17 00:00:00 2001
From: Stefan Melmuk <stefan.melmuk@gmail.com>
Date: Wed, 26 Oct 2022 13:02:05 +0200
Subject: [PATCH] validate cron expressions on startup

---
 src/config.rs | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/config.rs b/src/config.rs
index 936f15df..cc5c7867 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,6 +1,7 @@
 use std::process::exit;
 use std::sync::RwLock;
 
+use job_scheduler_ng::Schedule;
 use once_cell::sync::Lazy;
 use reqwest::Url;
 
@@ -737,6 +738,26 @@ fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
         err!("`INVITATION_EXPIRATION_HOURS` has a minimum duration of 1 hour")
     }
 
+    if !cfg.send_purge_schedule.is_empty() && cfg.send_purge_schedule.parse::<Schedule>().is_err() {
+        err!("`SEND_PURGE_SCHEDULE` is not a valid cron expression")
+    }
+    if !cfg.trash_purge_schedule.is_empty() && cfg.trash_purge_schedule.parse::<Schedule>().is_err() {
+        err!("`TRASH_PURGE_SCHEDULE` is not a valid cron expression")
+    }
+    if !cfg.incomplete_2fa_schedule.is_empty() && cfg.incomplete_2fa_schedule.parse::<Schedule>().is_err() {
+        err!("`INCOMPLETE_2FA_SCHEDULE` is not a valid cron expression")
+    }
+    if !cfg.emergency_notification_reminder_schedule.is_empty()
+        && cfg.emergency_notification_reminder_schedule.parse::<Schedule>().is_err()
+    {
+        err!("`EMERGENCY_NOTIFICATION_REMINDER_SCHEDULE` is not a valid cron expression")
+    }
+    if !cfg.emergency_request_timeout_schedule.is_empty()
+        && cfg.emergency_request_timeout_schedule.parse::<Schedule>().is_err()
+    {
+        err!("`EMERGENCY_REQUEST_TIMEOUT_SCHEDULE` is not a valid cron expression")
+    }
+
     Ok(())
 }
 
-- 
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