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-rw-r--r--plugins/mod_proxy65.lua184
1 files changed, 86 insertions, 98 deletions
diff --git a/plugins/mod_proxy65.lua b/plugins/mod_proxy65.lua
index d02f3b58..155cb60d 100644
--- a/plugins/mod_proxy65.lua
+++ b/plugins/mod_proxy65.lua
@@ -6,35 +6,21 @@
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--
---[[
-* to restart the proxy in the console: e.g.
-module:unload("proxy65");
-> server.removeserver(<proxy65_port>);
-module:load("proxy65", <proxy65_jid>);
-]]--
+module:set_global();
-local module = module;
-local tostring = tostring;
local jid_compare, jid_prep = require "util.jid".compare, require "util.jid".prep;
local st = require "util.stanza";
-local connlisteners = require "net.connlisteners";
local sha1 = require "util.hashes".sha1;
-local server = require "net.server";
local b64 = require "util.encodings".base64.encode;
+local server = require "net.server";
-local host, name = module:get_host(), "SOCKS5 Bytestreams Service";
-local sessions, transfers = {}, {};
-
-local proxy_port = module:get_option("proxy65_port") or 5000;
-local proxy_interface = module:get_option("proxy65_interface") or "*";
-local proxy_address = module:get_option("proxy65_address") or (proxy_interface ~= "*" and proxy_interface) or host;
-local proxy_acl = module:get_option("proxy65_acl");
+local sessions, transfers = module:shared("sessions", "transfers");
local max_buffer_size = 4096;
-local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" };
+local listener = {};
-function connlistener.onincoming(conn, data)
+function listener.onincoming(conn, data)
local session = sessions[conn] or {};
local transfer = transfers[session.sha];
@@ -84,7 +70,7 @@ function connlistener.onincoming(conn, data)
end
end
-function connlistener.ondisconnect(conn, err)
+function listener.ondisconnect(conn, err)
local session = sessions[conn];
if session then
if transfers[session.sha] then
@@ -101,88 +87,90 @@ function connlistener.ondisconnect(conn, err)
end
end
-module:add_identity("proxy", "bytestreams", name);
-module:add_feature("http://jabber.org/protocol/bytestreams");
-
-module:hook("iq-get/host/http://jabber.org/protocol/disco#info:query", function(event)
- local origin, stanza = event.origin, event.stanza;
- origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#info")
- :tag("identity", {category='proxy', type='bytestreams', name=name}):up()
- :tag("feature", {var="http://jabber.org/protocol/bytestreams"}) );
- return true;
-end, -1);
-
-module:hook("iq-get/host/http://jabber.org/protocol/disco#items:query", function(event)
- local origin, stanza = event.origin, event.stanza;
- origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#items"));
- return true;
-end, -1);
+function module.add_host(module)
+ local host, name = module:get_host(), module:get_option_string("name", "SOCKS5 Bytestreams Service");
+
+ local proxy_address = module:get_option("proxy65_address", host);
+ local proxy_port = module:get_option_number("proxy65_port", next(portmanager.get_active_services():search("proxy65", nil)[1]));
+ local proxy_acl = module:get_option("proxy65_acl");
-module:hook("iq-get/host/http://jabber.org/protocol/bytestreams:query", function(event)
- local origin, stanza = event.origin, event.stanza;
+ module:add_identity("proxy", "bytestreams", name);
+ module:add_feature("http://jabber.org/protocol/bytestreams");
+
+ module:hook("iq-get/host/http://jabber.org/protocol/disco#info:query", function(event)
+ local origin, stanza = event.origin, event.stanza;
+ origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#info")
+ :tag("identity", {category='proxy', type='bytestreams', name=name}):up()
+ :tag("feature", {var="http://jabber.org/protocol/bytestreams"}) );
+ return true;
+ end, -1);
+
+ module:hook("iq-get/host/http://jabber.org/protocol/disco#items:query", function(event)
+ local origin, stanza = event.origin, event.stanza;
+ origin.send(st.reply(stanza):query("http://jabber.org/protocol/disco#items"));
+ return true;
+ end, -1);
- -- check ACL
- while proxy_acl and #proxy_acl > 0 do -- using 'while' instead of 'if' so we can break out of it
- local jid = stanza.attr.from;
- for _, acl in ipairs(proxy_acl) do
- if jid_compare(jid, acl) then break; end
+ module:hook("iq-get/host/http://jabber.org/protocol/bytestreams:query", function(event)
+ local origin, stanza = event.origin, event.stanza;
+
+ -- check ACL
+ while proxy_acl and #proxy_acl > 0 do -- using 'while' instead of 'if' so we can break out of it
+ local jid = stanza.attr.from;
+ for _, acl in ipairs(proxy_acl) do
+ if jid_compare(jid, acl) then break; end
+ end
+ module:log("warn", "Denying use of proxy for %s", tostring(stanza.attr.from));
+ origin.send(st.error_reply(stanza, "auth", "forbidden"));
+ return true;
end
- module:log("warn", "Denying use of proxy for %s", tostring(stanza.attr.from));
- origin.send(st.error_reply(stanza, "auth", "forbidden"));
+
+ local sid = stanza.tags[1].attr.sid;
+ origin.send(st.reply(stanza):tag("query", {xmlns="http://jabber.org/protocol/bytestreams", sid=sid})
+ :tag("streamhost", {jid=host, host=proxy_address, port=proxy_port}));
return true;
- end
-
- local sid = stanza.tags[1].attr.sid;
- origin.send(st.reply(stanza):tag("query", {xmlns="http://jabber.org/protocol/bytestreams", sid=sid})
- :tag("streamhost", {jid=host, host=proxy_address, port=proxy_port}));
- return true;
-end);
-
-module.unload = function()
- connlisteners.deregister(module.host .. ':proxy65');
-end
-
-module:hook("iq-set/host/http://jabber.org/protocol/bytestreams:query", function(event)
- local origin, stanza = event.origin, event.stanza;
-
- local query = stanza.tags[1];
- local sid = query.attr.sid;
- local from = stanza.attr.from;
- local to = query:get_child_text("activate");
- local prepped_to = jid_prep(to);
-
- local info = "sid: "..tostring(sid)..", initiator: "..tostring(from)..", target: "..tostring(prepped_to or to);
- if prepped_to and sid then
- local sha = sha1(sid .. from .. prepped_to, true);
- if not transfers[sha] then
- module:log("debug", "Activation request has unknown session id; activation failed (%s)", info);
- origin.send(st.error_reply(stanza, "modify", "item-not-found"));
- elseif not transfers[sha].initiator then
- module:log("debug", "The sender was not connected to the proxy; activation failed (%s)", info);
- origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The sender (you) is not connected to the proxy"));
- --elseif not transfers[sha].target then -- can't happen, as target is set when a transfer object is created
- -- module:log("debug", "The recipient was not connected to the proxy; activation failed (%s)", info);
- -- origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The recipient is not connected to the proxy"));
- else -- if transfers[sha].initiator ~= nil and transfers[sha].target ~= nil then
- module:log("debug", "Transfer activated (%s)", info);
- transfers[sha].activated = true;
- transfers[sha].target:resume();
- transfers[sha].initiator:resume();
- origin.send(st.reply(stanza));
+ end);
+
+ module:hook("iq-set/host/http://jabber.org/protocol/bytestreams:query", function(event)
+ local origin, stanza = event.origin, event.stanza;
+
+ local query = stanza.tags[1];
+ local sid = query.attr.sid;
+ local from = stanza.attr.from;
+ local to = query:get_child_text("activate");
+ local prepped_to = jid_prep(to);
+
+ local info = "sid: "..tostring(sid)..", initiator: "..tostring(from)..", target: "..tostring(prepped_to or to);
+ if prepped_to and sid then
+ local sha = sha1(sid .. from .. prepped_to, true);
+ if not transfers[sha] then
+ module:log("debug", "Activation request has unknown session id; activation failed (%s)", info);
+ origin.send(st.error_reply(stanza, "modify", "item-not-found"));
+ elseif not transfers[sha].initiator then
+ module:log("debug", "The sender was not connected to the proxy; activation failed (%s)", info);
+ origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The sender (you) is not connected to the proxy"));
+ --elseif not transfers[sha].target then -- can't happen, as target is set when a transfer object is created
+ -- module:log("debug", "The recipient was not connected to the proxy; activation failed (%s)", info);
+ -- origin.send(st.error_reply(stanza, "cancel", "not-allowed", "The recipient is not connected to the proxy"));
+ else -- if transfers[sha].initiator ~= nil and transfers[sha].target ~= nil then
+ module:log("debug", "Transfer activated (%s)", info);
+ transfers[sha].activated = true;
+ transfers[sha].target:resume();
+ transfers[sha].initiator:resume();
+ origin.send(st.reply(stanza));
+ end
+ elseif to and sid then
+ module:log("debug", "Malformed activation jid; activation failed (%s)", info);
+ origin.send(st.error_reply(stanza, "modify", "jid-malformed"));
+ else
+ module:log("debug", "Bad request; activation failed (%s)", info);
+ origin.send(st.error_reply(stanza, "modify", "bad-request"));
end
- elseif to and sid then
- module:log("debug", "Malformed activation jid; activation failed (%s)", info);
- origin.send(st.error_reply(stanza, "modify", "jid-malformed"));
- else
- module:log("debug", "Bad request; activation failed (%s)", info);
- origin.send(st.error_reply(stanza, "modify", "bad-request"));
- end
- return true;
-end);
-
-if not connlisteners.register(module.host .. ':proxy65', connlistener) then
- module:log("error", "mod_proxy65: Could not establish a connection listener. Check your configuration please.");
- module:log("error", "Possibly two proxy65 components are configured to share the same port.");
+ return true;
+ end);
end
-connlisteners.start(module.host .. ':proxy65');
+module:provides("net", {
+ default_port = 5000;
+ listener = listener;
+});