diff options
Diffstat (limited to 'plugins/mod_proxy65.lua')
| -rw-r--r-- | plugins/mod_proxy65.lua | 49 |
1 files changed, 21 insertions, 28 deletions
diff --git a/plugins/mod_proxy65.lua b/plugins/mod_proxy65.lua index 2cfbe7b6..190d30be 100644 --- a/plugins/mod_proxy65.lua +++ b/plugins/mod_proxy65.lua @@ -20,6 +20,7 @@ local componentmanager = require "core.componentmanager"; local config_get = require "core.configmanager".get; local connlisteners = require "net.connlisteners"; local sha1 = require "util.hashes".sha1; +local server = require "net.server"; local host, name = module:get_host(), "SOCKS5 Bytestreams Service"; local sessions, transfers, component, replies_cache = {}, {}, nil, {}; @@ -28,6 +29,7 @@ local proxy_port = config_get(host, "core", "proxy65_port") or 5000; local proxy_interface = config_get(host, "core", "proxy65_interface") or "*"; local proxy_address = config_get(host, "core", "proxy65_address") or (proxy_interface ~= "*" and proxy_interface) or host; local proxy_acl = config_get(host, "core", "proxy65_acl"); +local max_buffer_size = 4096; local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" }; @@ -84,19 +86,19 @@ function connlistener.onincoming(conn, data) transfers[sha].initiator = conn; session.sha = sha; module:log("debug", "initiator connected ... "); - throttle_sending(conn, transfers[sha].target); - throttle_sending(transfers[sha].target, conn); + server.link(conn, transfers[sha].target, max_buffer_size); + server.link(transfers[sha].target, conn, max_buffer_size); end conn:write(string.char(5, 0, 0, 3, sha:len()) .. sha .. string.char(0, 0)); -- VER, REP, RSV, ATYP, BND.ADDR (sha), BND.PORT (2 Byte) conn:lock_read(true) else module:log("warn", "Neither data transfer nor initial connect of a participator of a transfer.") - conn.close(); + conn:close(); end else if data ~= nil then module:log("warn", "unknown connection with no authentication data -> closing it"); - conn.close(); + conn:close(); end end end @@ -107,9 +109,9 @@ function connlistener.ondisconnect(conn, err) if session.sha and transfers[session.sha] then local initiator, target = transfers[session.sha].initiator, transfers[session.sha].target; if initiator == conn and target ~= nil then - target.close(); + target:close(); elseif target == conn and initiator ~= nil then - initiator.close(); + initiator:close(); end transfers[session.sha] = nil; end @@ -234,8 +236,12 @@ function handle_to_domain(origin, stanza) elseif xmlns == "http://jabber.org/protocol/bytestreams" then origin.send(get_stream_host(origin, stanza)); return true; + else + origin.send(st.error_reply(stanza, "cancel", "service-unavailable")); + return true; end elseif stanza.name == "iq" and type == "set" then + module:log("debug", "Received activation request from %s", stanza.attr.from); local reply, from, to, sid = set_activation(stanza); if reply ~= nil and from ~= nil and to ~= nil and sid ~= nil then local sha = sha1(sid .. from .. to, true); @@ -246,6 +252,15 @@ function handle_to_domain(origin, stanza) transfers[sha].activated = true; transfers[sha].target:lock_read(false); transfers[sha].initiator:lock_read(false); + else + module:log("debug", "Both parties were not yet connected"); + local message = "Neither party is connected to the proxy"; + if transfers[sha].initiator then + message = "The recipient is not connected to the proxy"; + elseif transfers[sha].target then + message = "The sender (you) is not connected to the proxy"; + end + origin.send(st.error_reply(stanza, "cancel", "not-allowed", message)); end else module:log("error", "activation failed: sid: %s, initiator: %s, target: %s", tostring(sid), tostring(from), tostring(to)); @@ -262,25 +277,3 @@ end connlisteners.start(module.host .. ':proxy65'); component = componentmanager.register_component(host, handle_to_domain); -local sender_lock_threshold = 4096; -function throttle_sending(sender, receiver) - sender:pattern(sender_lock_threshold); - local sender_locked; - local _sendbuffer = receiver.sendbuffer; - function receiver.sendbuffer() - _sendbuffer(); - if sender_locked and receiver.bufferlen() < sender_lock_threshold then - sender:lock_read(false); -- Unlock now - sender_locked = nil; - end - end - - local _readbuffer = sender.readbuffer; - function sender.readbuffer() - _readbuffer(); - if not sender_locked and receiver.bufferlen() >= sender_lock_threshold then - sender_locked = true; - sender:lock_read(true); - end - end -end |