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mod_c2s, mod_s2s, mod_component, mod_bosh, mod_websockets: Set default stanza size limits

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c2s/bosh/ws streams will default to 256KB, s2s and components to 512KB.

These values are aligned with ejabberd's default settings, which should reduce
issues related to inconsistent size limits between servers on the XMPP network.

The previous default (10MB) is excessive for any production server, and allows
significant memory usage by even unauthenticated sessions.
This commit is contained in:
Matthew Wild 2021-05-07 17:03:49 +01:00
parent 4c7989e7e4
commit 4c4e764e23
5 changed files with 7 additions and 5 deletions
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3
plugins/mod_component.lua
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@ -27,6 +27,7 @@ local hosts = prosody.hosts;
local log = module._log;
local opt_keepalives = module:get_option_boolean("component_tcp_keepalives", module:get_option_boolean("tcp_keepalives", true));
local stanza_size_limit = module:get_option_number("component_stanza_size_limit", module:get_option_number("s2s_stanza_size_limit", 1024*512));
local sessions = module:shared("sessions");
@ -297,7 +298,7 @@ function listener.onconnect(conn)
session.log("info", "Incoming Jabber component connection");
local stream = new_xmpp_stream(session, stream_callbacks);
local stream = new_xmpp_stream(session, stream_callbacks, stanza_size_limit);
session.stream = stream;
session.notopen = true;