From a1e3198deea193cf4392b0a37d724ebfb1ab4d19 Mon Sep 17 00:00:00 2001
From: Christian Schneppe <christian@pix-art.de>
Date: Sun, 10 Dec 2017 21:34:52 +0100
Subject: show warning when opening invalid jid

---
 .../java/de/pixart/messenger/ui/StartConversationActivity.java   | 4 ++++
 src/main/java/de/pixart/messenger/utils/XmppUri.java             | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/src/main/java/de/pixart/messenger/ui/StartConversationActivity.java b/src/main/java/de/pixart/messenger/ui/StartConversationActivity.java
index 642296c31..23a0bf011 100644
--- a/src/main/java/de/pixart/messenger/ui/StartConversationActivity.java
+++ b/src/main/java/de/pixart/messenger/ui/StartConversationActivity.java
@@ -1192,6 +1192,10 @@ public class StartConversationActivity extends XmppActivity implements OnRosterU
         public String account;
 
         boolean invite() {
+            if (!isJidValid()) {
+                Toast.makeText(StartConversationActivity.this, R.string.invalid_jid, Toast.LENGTH_SHORT).show();
+                return false;
+            }
             if (getJid() != null) {
                 return handleJid(this);
             }
diff --git a/src/main/java/de/pixart/messenger/utils/XmppUri.java b/src/main/java/de/pixart/messenger/utils/XmppUri.java
index 120f0e88a..24c0b3bff 100644
--- a/src/main/java/de/pixart/messenger/utils/XmppUri.java
+++ b/src/main/java/de/pixart/messenger/utils/XmppUri.java
@@ -156,6 +156,15 @@ public class XmppUri {
         }
     }
 
+    public boolean isJidValid() {
+        try {
+            Jid.fromString(jid);
+            return true;
+        } catch (InvalidJidException e) {
+            return false;
+        }
+    }
+
     public String getBody() {
         return body;
     }
-- 
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