Only graphically ack a message if it was sent by us

src/core/handlers.py

@@ -33,7 +33,7 @@ from config import config, CACHE_DIR
 from contact import Resource
 from logger import logger
 from roster import roster
-from text_buffer import CorrectionError
+from text_buffer import CorrectionError, AckError
 from theming import dump_tuple, get_theme
 
 from . commands import dumb_callback
@@ -1065,7 +1065,10 @@ def on_receipt(self, message):
     if not conversation:
         return
 
-    conversation.ack_message(msg_id)
+    try:
+        conversation.ack_message(msg_id, self.xmpp.boundjid)
+    except AckError:
+        log.debug('Error while receiving an ack', exc_info=True)
 
 def on_data_form(self, message):
     """

src/tabs/basetabs.py

@@ -737,11 +737,11 @@ class OneToOneTab(ChatTab):
             self.add_message(msg, typ=0)
             self.core.refresh_window()
 
-    def ack_message(self, msg_id):
+    def ack_message(self, msg_id, msg_jid):
         """
         Ack a message
         """
-        new_msg = self._text_buffer.ack_message(msg_id)
+        new_msg = self._text_buffer.ack_message(msg_id, msg_jid)
         if new_msg:
             self.text_win.modify_message(msg_id, new_msg)
             self.core.refresh_window()

src/text_buffer.py

@@ -24,6 +24,9 @@ Message = collections.namedtuple('Message', message_fields)
 class CorrectionError(Exception):
     pass
 
+class AckError(Exception):
+    pass
+
 def other_elems(self):
     "Helper for the repr_message function"
     acc = ['Message(']
@@ -161,7 +164,7 @@ class TextBuffer(object):
                 return i
         return -1
 
-    def ack_message(self, old_id):
+    def ack_message(self, old_id, jid):
         """
         Ack a message
         """
@@ -169,6 +172,10 @@ class TextBuffer(object):
         if i == -1:
             return
         msg = self.messages[i]
+        if msg.jid != jid:
+            raise AckError('Wrong JID for message id %s (was %s, expected %s)' %
+                            (old_id, msg.jid, jid))
+
         new_msg = list(msg)
         new_msg[12] = True
         new_msg = Message(*new_msg)