From 69a1df260ef61aa22c99bda59ad9ecafbee3b393 Mon Sep 17 00:00:00 2001
From: Dragory <2606411+Dragory@users.noreply.github.com>
Date: Tue, 1 Sep 2020 01:11:02 +0300
Subject: [PATCH] Add graceful error handling for welcome message template
 parsing

---
 .../events/SendWelcomeMessageEvt.ts           | 21 +++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts b/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts
index ee298c7f..abf5b7da 100644
--- a/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts
+++ b/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts
@@ -1,5 +1,5 @@
 import { welcomeEvent } from "../types";
-import { renderTemplate } from "src/templateFormatter";
+import { renderTemplate, TemplateParseError } from "src/templateFormatter";
 import { createChunkedMessage, stripObjectToScalars } from "src/utils";
 import { LogType } from "src/data/LogType";
 import { TextChannel } from "eris";
@@ -23,9 +23,22 @@ export const SendWelcomeMessageEvt = welcomeEvent({
 
     pluginData.state.sentWelcomeMessages.add(member.id);
 
-    const formatted = await renderTemplate(config.message, {
-      member: stripObjectToScalars(member, ["user"]),
-    });
+    let formatted;
+
+    try {
+      formatted = await renderTemplate(config.message, {
+        member: stripObjectToScalars(member, ["user"]),
+      });
+    } catch (e) {
+      if (e instanceof TemplateParseError) {
+        pluginData.state.logs.log(LogType.BOT_ALERT, {
+          body: `Error formatting welcome message: ${e.message}`,
+        });
+        return;
+      }
+
+      throw e;
+    }
 
     if (config.send_dm) {
       try {