prosody
8f9fac97e6e6
plugins/mod_proxy65.lua

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plugins/mod_proxy65.lua @ 3690:8f9fac97e6e6

mod_proxy65: :sub(n):byte() -> :byte(n).
author Waqas Hussain <waqas20@gmail.com>
date Fri, 03 Dec 2010 00:12:55 +0500
parent 3689:2ca76b4f6404
child 3691:07f789ac7e3c
comparison
equal deleted inserted replaced
3689:2ca76b4f6404 3690:8f9fac97e6e6
29 local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" }; 29 local connlistener = { default_port = proxy_port, default_interface = proxy_interface, default_mode = "*a" };
30 30
31 function connlistener.onincoming(conn, data) 31 function connlistener.onincoming(conn, data)
32 local session = sessions[conn] or {}; 32 local session = sessions[conn] or {};
33 33
34 if session.setup == nil and data ~= nil and data:sub(1):byte() == 0x05 and data:len() > 2 then 34 if session.setup == nil and data ~= nil and data:byte(1) == 0x05 and data:len() > 2 then
35 local nmethods = data:sub(2):byte(); 35 local nmethods = data:byte(2);
36 local methods = data:sub(3); 36 local methods = data:sub(3);
37 local supported = false; 37 local supported = false;
38 for i=1, nmethods, 1 do 38 for i=1, nmethods, 1 do
39 if(methods:sub(i):byte() == 0x00) then -- 0x00 == method: NO AUTH 39 if(methods:byte(i) == 0x00) then -- 0x00 == method: NO AUTH
40 supported = true; 40 supported = true;
41 break; 41 break;
42 end 42 end
43 end 43 end
44 if(supported) then 44 if(supported) then
60 end 60 end
61 return; 61 return;
62 end 62 end
63 end 63 end
64 if data ~= nil and data:len() == 0x2F and -- 40 == length of SHA1 HASH, and 7 other bytes => 47 => 0x2F 64 if data ~= nil and data:len() == 0x2F and -- 40 == length of SHA1 HASH, and 7 other bytes => 47 => 0x2F
65 data:sub(1):byte() == 0x05 and -- SOCKS5 has 5 in first byte 65 data:byte(1) == 0x05 and -- SOCKS5 has 5 in first byte
66 data:sub(2):byte() == 0x01 and -- CMD must be 1 66 data:byte(2) == 0x01 and -- CMD must be 1
67 data:sub(3):byte() == 0x00 and -- RSV must be 0 67 data:byte(3) == 0x00 and -- RSV must be 0
68 data:sub(4):byte() == 0x03 and -- ATYP must be 3 68 data:byte(4) == 0x03 and -- ATYP must be 3
69 data:sub(5):byte() == 40 and -- SHA1 HASH length must be 40 (0x28) 69 data:byte(5) == 40 and -- SHA1 HASH length must be 40 (0x28)
70 data:sub(-2):byte() == 0x00 and -- PORT must be 0, size 2 byte 70 data:byte(-2) == 0x00 and -- PORT must be 0, size 2 byte
71 data:sub(-1):byte() == 0x00 71 data:byte(-1) == 0x00
72 then 72 then
73 local sha = data:sub(6, 45); -- second param is not count! it's the ending index (included!) 73 local sha = data:sub(6, 45); -- second param is not count! it's the ending index (included!)
74 if transfers[sha] == nil then 74 if transfers[sha] == nil then
75 transfers[sha] = {}; 75 transfers[sha] = {};
76 transfers[sha].activated = false; 76 transfers[sha].activated = false;