support +draft/channel-context in modules/greeting.py

modules/greeting.py

@@ -2,6 +2,8 @@
 
 from src import ModuleManager, utils
 
+CAP = utils.irc.Capability("message-tags", "draft/message-tags-0.2")
+
 @utils.export("channelset", utils.Setting("greeting",
     "Set a greeting to send to users when they join",
     example="welcome to the channel!"))
@@ -10,5 +12,9 @@ class Module(ModuleManager.BaseModule):
     def join(self, event):
         greeting = event["channel"].get_setting("greeting", None)
         if greeting:
+            tags = {}
+            if event["server"].has_capability(CAP):
+                tags["+draft/channel-context"] = event["channel"].name
+
             event["user"].send_notice("[%s] %s" % (event["channel"].name,
-                greeting))
+                greeting), tags)