From 63642abefb42181f5d31d2af54538f4850d6123a Mon Sep 17 00:00:00 2001
From: Yannik Schmidt <yannik.schmidt@thermoscan.de>
Date: Sat, 21 Nov 2020 08:49:29 +0100
Subject: [PATCH] improve message escaping

---
 telegram-interface.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/telegram-interface.py b/telegram-interface.py
index 4ab4974..cf14f5b 100755
--- a/telegram-interface.py
+++ b/telegram-interface.py
@@ -63,6 +63,12 @@ def sendToAll():
     sendMessageToAllClients(flask.request.json["message"])
     return ("","204")
 
+def escape(string):
+    badChars = [".","-","=","(",")","+"]
+    for c in badChars:
+        string = string.replace(c,"\\"+c)
+    return string
+
 @app.route('/send-all-icinga', methods=["POST"])
 def sendToAllIcinga():
     args = flask.request.json
@@ -71,7 +77,7 @@ def sendToAllIcinga():
     for key in args.keys():
         if type(args[key]) == str:
             print(key)
-            args[key] = args[key].replace(".", "\\.").replace("-", "\\-").replace("=","\\=")
+            args[key] = escape(args[key])
 
     # build message #
     serviceName = args["service_name"]