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-rw-r--r--plugins/mod_component.lua80
1 files changed, 53 insertions, 27 deletions
diff --git a/plugins/mod_component.lua b/plugins/mod_component.lua
index 11abab79..573b2c8e 100644
--- a/plugins/mod_component.lua
+++ b/plugins/mod_component.lua
@@ -1,7 +1,7 @@
-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
---
+--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
@@ -29,41 +29,50 @@ local opt_keepalives = module:get_option_boolean("component_tcp_keepalives", mod
local sessions = module:shared("sessions");
+local function keepalive(event)
+ local session = event.session;
+ if not session.notopen then
+ return event.session.send(' ');
+ end
+end
+
function module.add_host(module)
if module:get_host_type() ~= "component" then
error("Don't load mod_component manually, it should be for a component, please see http://prosody.im/doc/components", 0);
end
-
+
local env = module.environment;
env.connected = false;
+ env.session = false;
local send;
- local function on_destroy(session, err)
+ local function on_destroy(session, err) --luacheck: ignore 212/err
env.connected = false;
+ env.session = false;
send = nil;
session.on_destroy = nil;
end
-
+
-- Handle authentication attempts by component
local function handle_component_auth(event)
local session, stanza = event.origin, event.stanza;
-
+
if session.type ~= "component_unauthed" then return; end
-
+
if (not session.host) or #stanza.tags > 0 then
(session.log or log)("warn", "Invalid component handshake for host: %s", session.host);
session:close("not-authorized");
return true;
end
-
- local secret = module:get_option("component_secret");
+
+ local secret = module:get_option_string("component_secret");
if not secret then
(session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.host);
session:close("not-authorized");
return true;
end
-
+
local supplied_token = t_concat(stanza);
local calculated_token = sha1(session.streamid..secret, true);
if supplied_token:lower() ~= calculated_token:lower() then
@@ -71,14 +80,20 @@ function module.add_host(module)
session:close{ condition = "not-authorized", text = "Given token does not match calculated token" };
return true;
end
-
+
if env.connected then
- module:log("error", "Second component attempted to connect, denying connection");
- session:close{ condition = "conflict", text = "Component already connected" };
- return true;
+ local policy = module:get_option_string("component_conflict_resolve", "kick_new");
+ if policy == "kick_old" then
+ env.session:close{ condition = "conflict", text = "Replaced by a new connection" };
+ else -- kick_new
+ module:log("error", "Second component attempted to connect, denying connection");
+ session:close{ condition = "conflict", text = "Component already connected" };
+ return true;
+ end
end
-
+
env.connected = true;
+ env.session = session;
send = session.send;
session.on_destroy = on_destroy;
session.component_validate_from = module:get_option_boolean("validate_from_addresses", true);
@@ -86,7 +101,7 @@ function module.add_host(module)
module:log("info", "External component successfully authenticated");
session.send(st.stanza("handshake"));
module:fire_event("component-authenticated", { session = session });
-
+
return true;
end
module:hook("stanza/jabber:component:accept:handshake", handle_component_auth, -1);
@@ -117,7 +132,7 @@ function module.add_host(module)
end
return true;
end
-
+
module:hook("iq/bare", handle_stanza, -1);
module:hook("message/bare", handle_stanza, -1);
module:hook("presence/bare", handle_stanza, -1);
@@ -127,8 +142,12 @@ function module.add_host(module)
module:hook("iq/host", handle_stanza, -1);
module:hook("message/host", handle_stanza, -1);
module:hook("presence/host", handle_stanza, -1);
+
+ module:hook("component-read-timeout", keepalive, -1);
end
+module:hook("component-read-timeout", keepalive, -1);
+
--- Network and stream part ---
local xmlns_component = 'jabber:component:accept';
@@ -141,7 +160,7 @@ local stream_callbacks = { default_ns = xmlns_component };
local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
-function stream_callbacks.error(session, error, data, data2)
+function stream_callbacks.error(session, error, data)
if session.destroyed then return; end
module:log("warn", "Error processing component stream: %s", tostring(error));
if error == "no-stream" then
@@ -178,9 +197,7 @@ function stream_callbacks.streamopened(session, attr)
session.streamid = uuid_gen();
session.notopen = nil;
-- Return stream header
- session.send("<?xml version='1.0'?>");
- session.send(st.stanza("stream:stream", { xmlns=xmlns_component,
- ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.host }):top_tag());
+ session:open_stream();
end
function stream_callbacks.streamclosed(session)
@@ -276,26 +293,26 @@ function listener.onconnect(conn)
if opt_keepalives then
conn:setoption("keepalive", opt_keepalives);
end
-
+
session.log("info", "Incoming Jabber component connection");
-
+
local stream = new_xmpp_stream(session, stream_callbacks);
session.stream = stream;
-
+
session.notopen = true;
-
+
function session.reset_stream()
session.notopen = true;
session.stream:reset();
end
- function session.data(conn, data)
+ function session.data(_, data)
local ok, err = stream:feed(data);
if ok then return; end
module:log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_"));
session:close("not-well-formed");
end
-
+
session.dispatch_stanza = stream_callbacks.handlestanza;
sessions[conn] = session;
@@ -308,6 +325,9 @@ function listener.ondisconnect(conn, err)
local session = sessions[conn];
if session then
(session.log or log)("info", "component disconnected: %s (%s)", tostring(session.host), tostring(err));
+ if session.host then
+ module:context(session.host):fire_event("component-disconnected", { session = session, reason = err });
+ end
if session.on_destroy then session:on_destroy(err); end
sessions[conn] = nil;
for k in pairs(session) do
@@ -316,7 +336,6 @@ function listener.ondisconnect(conn, err)
end
end
session.destroyed = true;
- session = nil;
end
end
@@ -324,6 +343,13 @@ function listener.ondetach(conn)
sessions[conn] = nil;
end
+function listener.onreadtimeout(conn)
+ local session = sessions[conn];
+ if session then
+ return (hosts[session.host] or prosody).events.fire_event("component-read-timeout", { session = session });
+ end
+end
+
module:provides("net", {
name = "component";
private = true;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 02:14:54 +0000