From 0747cbea53bce8930724c4d7de735c07e36e6893 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Fri, 8 May 2020 23:58:24 +0200
Subject: mod_c2s: Run stream open and close events in async thread, fixes
 #1103

Enables async processing during stream opening and closing.
---
 plugins/mod_c2s.lua | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

(limited to 'plugins/mod_c2s.lua')

diff --git a/plugins/mod_c2s.lua b/plugins/mod_c2s.lua
index 536b945e..91e37c4a 100644
--- a/plugins/mod_c2s.lua
+++ b/plugins/mod_c2s.lua
@@ -55,6 +55,11 @@ end);
 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'};
 
 function stream_callbacks.streamopened(session, attr)
+	-- run _streamopened in async context
+	session.thread:run({ stream = "opened", attr = attr });
+end
+
+function stream_callbacks._streamopened(session, attr)
 	local send = session.send;
 	if not attr.to then
 		session:close{ condition = "improper-addressing",
@@ -121,7 +126,12 @@ function stream_callbacks.streamopened(session, attr)
 	end
 end
 
-function stream_callbacks.streamclosed(session)
+function stream_callbacks.streamclosed(session, attr)
+	-- run _streamclosed in async context
+	session.thread:run({ stream = "closed", attr = attr });
+end
+
+function stream_callbacks._streamclosed(session)
 	session.log("debug", "Received </stream:stream>");
 	session:close(false);
 end
@@ -280,7 +290,13 @@ function listener.onconnect(conn)
 	end
 
 	session.thread = runner(function (stanza)
-		core_process_stanza(session, stanza);
+		if st.is_stanza(stanza) then
+			core_process_stanza(session, stanza);
+		elseif stanza.stream == "opened" then
+			stream_callbacks._streamopened(session, stanza.attr);
+		elseif stanza.stream == "closed" then
+			stream_callbacks._streamclosed(session, stanza.attr);
+		end
 	end, runner_callbacks, session);
 
 	local filter = session.filter;
-- 
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