From eac5ad50a8ff47b24d74bdb3c878c171e37fceed Mon Sep 17 00:00:00 2001
From: Nicoco K <nicoco@nicoco.fr>
Date: Tue, 9 Mar 2021 19:24:43 +0100
Subject: XEP-0050 Make handle_command_xxx async

---
 slixmpp/plugins/xep_0050/adhoc.py | 42 ++++++++++++++++++++++++---------------
 1 file changed, 26 insertions(+), 16 deletions(-)

(limited to 'slixmpp')

diff --git a/slixmpp/plugins/xep_0050/adhoc.py b/slixmpp/plugins/xep_0050/adhoc.py
index 5f3bc81c..072ec5aa 100644
--- a/slixmpp/plugins/xep_0050/adhoc.py
+++ b/slixmpp/plugins/xep_0050/adhoc.py
@@ -3,6 +3,7 @@
 # Copyright (C) 2011 Nathanael C. Fritz, Lance J.T. Stout
 # This file is part of Slixmpp.
 # See the file LICENSE for copying permission.
+import asyncio
 import logging
 import time
 
@@ -164,25 +165,25 @@ class XEP_0050(BasePlugin):
         self.xmpp.event('command', iq)
         self.xmpp.event('command_%s' % iq['command']['action'], iq)
 
-    def _handle_command_all(self, iq: Iq) -> None:
+    async def _handle_command_all(self, iq: Iq) -> None:
         action = iq['command']['action']
         sessionid = iq['command']['sessionid']
         session = self.sessions.get(sessionid)
 
         if session is None:
-            return self._handle_command_start(iq)
+            return await self._handle_command_start(iq)
 
         if action in ('next', 'execute'):
-            return self._handle_command_next(iq)
+            return await self._handle_command_next(iq)
         if action == 'prev':
-            return self._handle_command_prev(iq)
+            return await self._handle_command_prev(iq)
         if action == 'complete':
-            return self._handle_command_complete(iq)
+            return await self._handle_command_complete(iq)
         if action == 'cancel':
-            return self._handle_command_cancel(iq)
+            return await self._handle_command_cancel(iq)
         return None
 
-    def _handle_command_start(self, iq):
+    async def _handle_command_start(self, iq):
         """
         Process an initial request to execute a command.
 
@@ -222,11 +223,11 @@ class XEP_0050(BasePlugin):
                            'prev': None,
                            'cancel': None}
 
-        session = handler(iq, initial_session)
+        session = await _await_if_needed(handler, iq, initial_session)
 
         self._process_command_response(iq, session)
 
-    def _handle_command_next(self, iq):
+    async def _handle_command_next(self, iq):
         """
         Process a request for the next step in the workflow
         for a command with multiple steps.
@@ -246,13 +247,13 @@ class XEP_0050(BasePlugin):
             if len(results) == 1:
                 results = results[0]
 
-            session = handler(results, session)
+            session = await _await_if_needed(handler, results, session)
 
             self._process_command_response(iq, session)
         else:
             raise XMPPError('item-not-found')
 
-    def _handle_command_prev(self, iq):
+    async def _handle_command_prev(self, iq):
         """
         Process a request for the prev step in the workflow
         for a command with multiple steps.
@@ -272,7 +273,7 @@ class XEP_0050(BasePlugin):
             if len(results) == 1:
                 results = results[0]
 
-            session = handler(results, session)
+            session = await _await_if_needed(handler, results, session)
 
             self._process_command_response(iq, session)
         else:
@@ -334,7 +335,7 @@ class XEP_0050(BasePlugin):
 
         iq.send()
 
-    def _handle_command_cancel(self, iq):
+    async def _handle_command_cancel(self, iq):
         """
         Process a request to cancel a command's execution.
 
@@ -348,7 +349,7 @@ class XEP_0050(BasePlugin):
         if session:
             handler = session['cancel']
             if handler:
-                handler(iq, session)
+                await _await_if_needed(handler, iq, session)
             del self.sessions[sessionid]
             iq = iq.reply()
             iq['command']['node'] = node
@@ -360,7 +361,7 @@ class XEP_0050(BasePlugin):
             raise XMPPError('item-not-found')
 
 
-    def _handle_command_complete(self, iq):
+    async def _handle_command_complete(self, iq):
         """
         Process a request to finish the execution of command
         and terminate the workflow.
@@ -385,7 +386,7 @@ class XEP_0050(BasePlugin):
                 results = results[0]
 
             if handler:
-                handler(results, session)
+                await _await_if_needed(handler, results, session)
 
             del self.sessions[sessionid]
 
@@ -616,3 +617,12 @@ class XEP_0050(BasePlugin):
 
         if iq['command']['status'] == 'completed':
             self.terminate_command(session)
+
+
+async def _await_if_needed(handler, *args):
+    if asyncio.iscoroutinefunction(handler):
+        log.debug(f"%s is async", handler)
+        return await handler(*args)
+    else:
+        log.debug(f"%s is sync", handler)
+        return handler(*args)
-- 
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