convert empty resources in messages to bare jid

2 files changed, 13 insertions, 2 deletions

diff --git a/src/main/java/de/pixart/messenger/xml/Element.java b/src/main/java/de/pixart/messenger/xml/Element.java
index d9eb626d3..f90efa555 100644
--- a/src/main/java/de/pixart/messenger/xml/Element.java
+++ b/src/main/java/de/pixart/messenger/xml/Element.java
@@ -10,6 +10,7 @@ import java.util.Locale;
 
 import de.pixart.messenger.utils.XmlHelper;
 import de.pixart.messenger.xmpp.InvalidJid;
+import de.pixart.messenger.xmpp.stanzas.MessagePacket;
 import rocks.xmpp.addr.Jid;
 
 public class Element {
@@ -152,7 +153,7 @@ public class Element {
             try {
                 return Jid.ofEscaped(jid);
             } catch (final IllegalArgumentException e) {
-                return new InvalidJid(jid);
+                return InvalidJid.of(jid, this instanceof MessagePacket);
             }
         }
         return null;
diff --git a/src/main/java/de/pixart/messenger/xmpp/InvalidJid.java b/src/main/java/de/pixart/messenger/xmpp/InvalidJid.java
index fd4ca4b90..a22bd6cef 100644
--- a/src/main/java/de/pixart/messenger/xmpp/InvalidJid.java
+++ b/src/main/java/de/pixart/messenger/xmpp/InvalidJid.java
@@ -37,10 +37,20 @@ public class InvalidJid implements Jid {
 
     private final String value;
 
-    public InvalidJid(String jid) {
+    private InvalidJid(String jid) {
         this.value = jid;
     }
 
+    public static Jid of(String jid, boolean fallback) {
+        final int pos = jid.indexOf('/');
+        if (fallback && pos >= 0 && jid.length() >= pos + 1) {
+            if (jid.substring(pos + 1).trim().isEmpty()) {
+                return Jid.ofEscaped(jid.substring(0, pos));
+            }
+        }
+        return new InvalidJid(jid);
+    }
+
     @Override
     @NonNull
     public String toString() {