Add support for MSDP LIST/REPORT/UNREPORT. Resolves #1507.

evennia/scripts/monitorhandler.py

@@ -172,16 +172,21 @@ class MonitorHandler(object):
         """
         self.monitors = defaultdict(lambda: defaultdict(dict))
 
-    def all(self):
+    def all(self, obj=None):
         """
-        List all monitors.
+        List all monitors or all monitors of a given object.
+
+        Args:
+            obj (Object): The object on which to list all monitors.
 
         Returns:
             monitors (list): The handled monitors.
 
         """
         output = []
-        for obj in self.monitors:
+        objs = [obj] if obj else self.monitors
+
+        for obj in objs:
             for fieldname in self.monitors[obj]:
                 for idstring, (callback, persistent, kwargs) in self.monitors[obj][fieldname].items():
                     output.append((obj, fieldname, idstring, persistent, kwargs))