prosody
c20b9fe1624b
plugins/mod_proxy65.lua

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plugins/mod_proxy65.lua @ 3004:c20b9fe1624b

mod_proxy65: Use new server.link to link proxied connections, now works with either connection backend
author Matthew Wild <mwild1@gmail.com>
date Wed, 05 May 2010 15:31:18 +0100
parent 2729:7e0c35713bf5
child 3005:c49be80767ee
comparison
equal deleted inserted replaced
3003:48871a549b4c 3004:c20b9fe1624b
18 local st = require "util.stanza"; 18 local st = require "util.stanza";
19 local componentmanager = require "core.componentmanager"; 19 local componentmanager = require "core.componentmanager";
20 local config_get = require "core.configmanager".get; 20 local config_get = require "core.configmanager".get;
21 local connlisteners = require "net.connlisteners"; 21 local connlisteners = require "net.connlisteners";
22 local sha1 = require "util.hashes".sha1; 22 local sha1 = require "util.hashes".sha1;
23 local server = require "net.server";
23 24
24 local host, name = module:get_host(), "SOCKS5 Bytestreams Service"; 25 local host, name = module:get_host(), "SOCKS5 Bytestreams Service";
25 local sessions, transfers, component, replies_cache = {}, {}, nil, {}; 26 local sessions, transfers, component, replies_cache = {}, {}, nil, {};
26 27
27 local proxy_port = config_get(host, "core", "proxy65_port") or 5000; 28 local proxy_port = config_get(host, "core", "proxy65_port") or 5000;
28 local proxy_interface = config_get(host, "core", "proxy65_interface") or "*"; 29 local proxy_interface = config_get(host, "core", "proxy65_interface") or "*";
29 local proxy_address = config_get(host, "core", "proxy65_address") or (proxy_interface ~= "*" and proxy_interface) or host; 30 local proxy_address = config_get(host, "core", "proxy65_address") or (proxy_interface ~= "*" and proxy_interface) or host;
30 local proxy_acl = config_get(host, "core", "proxy65_acl"); 31 local proxy_acl = config_get(host, "core", "proxy65_acl");
32 local max_buffer_size = 4096;
31 33
32 local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" }; 34 local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" };
33 35
34 function connlistener.onincoming(conn, data) 36 function connlistener.onincoming(conn, data)
35 local session = sessions[conn] or {}; 37 local session = sessions[conn] or {};
82 module:log("debug", "target connected ... "); 84 module:log("debug", "target connected ... ");
83 elseif transfers[sha].target ~= nil then 85 elseif transfers[sha].target ~= nil then
84 transfers[sha].initiator = conn; 86 transfers[sha].initiator = conn;
85 session.sha = sha; 87 session.sha = sha;
86 module:log("debug", "initiator connected ... "); 88 module:log("debug", "initiator connected ... ");
87 throttle_sending(conn, transfers[sha].target); 89 server.link(conn, transfers[sha].target, max_buffer_size);
88 throttle_sending(transfers[sha].target, conn); 90 server.link(transfers[sha].target, conn, max_buffer_size);
89 end 91 end
90 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) 92 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)
91 conn:lock_read(true) 93 conn:lock_read(true)
92 else 94 else
93 module:log("warn", "Neither data transfer nor initial connect of a participator of a transfer.") 95 module:log("warn", "Neither data transfer nor initial connect of a participator of a transfer.")
260 module:log("error", "Possibly two proxy65 components are configured to share the same port."); 262 module:log("error", "Possibly two proxy65 components are configured to share the same port.");
261 end 263 end
262 264
263 connlisteners.start(module.host .. ':proxy65'); 265 connlisteners.start(module.host .. ':proxy65');
264 component = componentmanager.register_component(host, handle_to_domain); 266 component = componentmanager.register_component(host, handle_to_domain);
265 local sender_lock_threshold = 4096;
266 function throttle_sending(sender, receiver)
267 sender:pattern(sender_lock_threshold);
268 local sender_locked;
269 local _sendbuffer = receiver.sendbuffer;
270 function receiver.sendbuffer()
271 _sendbuffer();
272 if sender_locked and receiver.bufferlen() < sender_lock_threshold then
273 sender:lock_read(false); -- Unlock now
274 sender_locked = nil;
275 end
276 end
277
278 local _readbuffer = sender.readbuffer;
279 function sender.readbuffer()
280 _readbuffer();
281 if not sender_locked and receiver.bufferlen() >= sender_lock_threshold then
282 sender_locked = true;
283 sender:lock_read(true);
284 end
285 end
286 end