From 439a601da4f3def8f66e1f1a55009b2d3b6557da Mon Sep 17 00:00:00 2001
From: Cole Furfaro-Strode <colestrode@gmail.com>
Date: Tue, 19 Jul 2016 22:28:13 -0400
Subject: [PATCH] clear attachments if parsing fails on postMessage

---
 lib/Slack_web_api.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/Slack_web_api.js b/lib/Slack_web_api.js
index 2dfca019b..5eeb53d0f 100755
--- a/lib/Slack_web_api.js
+++ b/lib/Slack_web_api.js
@@ -152,7 +152,12 @@ module.exports = function(bot, config) {
     // overwrite default behavior
     slack_api.chat.postMessage = function(options, cb) {
         if (options.attachments && typeof(options.attachments) != 'string') {
-            options.attachments = JSON.stringify(options.attachments);
+            try {
+                options.attachments = JSON.stringify(options.attachments);
+            } catch(err) {
+                delete options.attachments;
+                bot.log.error('Could not parse attachments', err);
+            }
         }
         slack_api.callAPI('chat.postMessage', options, cb);
     };