adding #1

.env.example

@@ -2,7 +2,7 @@ APP_DEBUG=false
 APP_PORT=8510
 
 APP_API_TOKEN=
-APP_API_ALLOWED_PARSERS=kuma
+APP_API_ALLOWED_PARSERS=kuma,text
 
 XMPP_SERVICE=
 XMPP_DOMAIN=

packages/server/parsers/text.js

@@ -0,0 +1,23 @@
+import Parser from './parser.js'
+import DOMPurify from 'isomorphic-dompurify'
+
+/**
+ *  Parser for "text" in Json, is used by slack
+ *
+ *  @author Björn Hase, Tentakelfabrik
+ *  @license hhttps://www.gnu.org/licenses/gpl-3.0.en.html GPL-3
+ *  @link https://gitea.tentakelfabrik.de:tentakelfabrik/tellme-bot.git
+ *
+ */
+class Text extends Parser
+{
+    parse()
+    {
+        // check for msg and clean it
+        if (this.body.text) {
+            this.message = DOMPurify.sanitize(this.body.text)
+        }
+    }
+}
+
+export default Text