Software `/` code `/` prosody-modules

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mod_websocket/mod_websocket.lua @ 857:1393af36ec9c

mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data

author	Florian Zeitz <florob@babelmonkeys.de>
date	Thu, 08 Nov 2012 01:55:00 +0100
parent	856:7eb54ed58856
child	895:1f4d77104da5

rev	line source
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	1 -- Prosody IM
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	2 -- Copyright (C) 2008-2010 Matthew Wild
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	3 -- Copyright (C) 2008-2010 Waqas Hussain
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	4 -- Copyright (C) 2012 Florian Zeitz
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	5 --
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	6 -- This project is MIT/X11 licensed. Please see the
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	7 -- COPYING file in the source package for more information.
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	8 --
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	9
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	10 module:set_global();
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	11
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	12 local add_task = require "util.timer".add_task;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	13 local new_xmpp_stream = require "util.xmppstream".new;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	14 local nameprep = require "util.encodings".stringprep.nameprep;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	15 local sessionmanager = require "core.sessionmanager";
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	16 local st = require "util.stanza";
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	17 local sm_new_session, sm_destroy_session = sessionmanager.new_session, sessionmanager.destroy_session;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	18 local uuid_generate = require "util.uuid".generate;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	19 local sha1 = require "util.hashes".sha1;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	20 local base64 = require "util.encodings".base64.encode;
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	21 local band = require "bit".band;
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	22 local bxor = require "bit".bxor;
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	23
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	24 local xpcall, tostring, type = xpcall, tostring, type;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	25 local traceback = debug.traceback;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	26
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	27 local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	28
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	29 local log = module._log;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	30
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	31 local c2s_timeout = module:get_option_number("c2s_timeout");
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	32 local stream_close_timeout = module:get_option_number("c2s_close_timeout", 5);
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	33 local opt_keepalives = module:get_option_boolean("tcp_keepalives", false);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	34
856 7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	35 local cross_domain = module:get_option("cross_domain_websocket");
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	36 if cross_domain then
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	37 if cross_domain == true then
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	38 cross_domain = "*";
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	39 elseif type(cross_domain) == "table" then
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	40 cross_domain = table.concat(cross_domain, ", ");
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	41 end
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	42 if type(cross_domain) ~= "string" then
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	43 cross_domain = nil;
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	44 end
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	45 end
7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	46
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	47 local sessions = module:shared("sessions");
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	48 local core_process_stanza = prosody.core_process_stanza;
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	49
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	50 local stream_callbacks = { default_ns = "jabber:client", handlestanza = core_process_stanza };
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	51 local listener = {};
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	52
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	53 -- Websocket helpers
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	54 local function parse_frame(frame)
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	55 local result = {};
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	56 local pos = 1;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	57 local length_bytes = 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	58 local counter = 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	59 local tmp_byte;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	60
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	61 if #frame < 2 then return; end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	62
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	63 tmp_byte = string.byte(frame, pos);
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	64 result.FIN = band(tmp_byte, 0x80) > 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	65 result.RSV1 = band(tmp_byte, 0x40) > 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	66 result.RSV2 = band(tmp_byte, 0x20) > 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	67 result.RSV3 = band(tmp_byte, 0x10) > 0;
690 5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	68 result.opcode = band(tmp_byte, 0x0F);
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	69
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	70 pos = pos + 1;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	71 tmp_byte = string.byte(frame, pos);
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	72 result.MASK = band(tmp_byte, 0x80) > 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	73 result.length = band(tmp_byte, 0x7F);
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	74
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	75 if result.length == 126 then
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	76 length_bytes = 2;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	77 result.length = 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	78 elseif result.length == 127 then
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	79 length_bytes = 8;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	80 result.length = 0;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	81 end
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	82
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	83 if #frame < (2 + length_bytes) then return; end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	84
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	85 for i = 1, length_bytes do
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	86 pos = pos + 1;
840 f568661c9d39 mod_websocket: Fix frame length calculation Florian Zeitz <florob@babelmonkeys.de> parents: 839 diff changeset	87 result.length = result.length * 256 + string.byte(frame, pos);
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	88 end
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	89
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	90 if #frame < (2 + length_bytes + (result.MASK and 4 or 0) + result.length) then return; end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	91
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	92 if result.MASK then
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	93 result.key = {string.byte(frame, pos+1), string.byte(frame, pos+2),
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	94 string.byte(frame, pos+3), string.byte(frame, pos+4)}
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	95
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	96 pos = pos + 5;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	97 result.data = "";
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	98 for i = pos, pos + result.length - 1 do
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	99 result.data = result.data .. string.char(bxor(result.key[counter+1], string.byte(frame, i)));
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	100 counter = (counter + 1) % 4;
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	101 end
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	102 else
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	103 result.data = frame:sub(pos + 1, pos + result.length);
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	104 end
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	105
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	106 return result, 2 + length_bytes + (result.MASK and 4 or 0) + result.length;
677 eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	107 end
eeb41cd5e9f3 mod_websocket: Move frame handling into a separate function Florian Zeitz <florob@babelmonkeys.de> parents: 676 diff changeset	108
687 d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	109 local function build_frame(desc)
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	110 local length;
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	111 local result = "";
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	112 local data = desc.data or "";
687 d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	113
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	114 result = result .. string.char(0x80 * (desc.FIN and 1 or 0) + desc.opcode);
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	115
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	116 length = #data;
687 d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	117 if length <= 125 then -- 7-bit length
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	118 result = result .. string.char(length);
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	119 elseif length <= 0xFFFF then -- 2-byte length
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	120 result = result .. string.char(126);
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	121 result = result .. string.char(length/0x100) .. string.char(length%0x100);
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	122 else -- 8-byte length
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	123 result = result .. string.char(127);
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	124 for i = 7, 0, -1 do
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	125 result = result .. string.char(( length / (2^(8*i)) ) % 0x100);
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	126 end
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	127 end
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	128
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	129 result = result .. data;
687 d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	130
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	131 return result;
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	132 end
d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	133
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	134 --- Stream events handlers
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	135 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'};
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	136 local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" };
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	137
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	138 function stream_callbacks.streamopened(session, attr)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	139 local send = session.send;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	140 session.host = nameprep(attr.to);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	141 if not session.host then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	142 session:close{ condition = "improper-addressing",
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	143 text = "A valid 'to' attribute is required on stream headers" };
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	144 return;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	145 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	146 session.version = tonumber(attr.version) or 0;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	147 session.streamid = uuid_generate();
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	148 (session.log or session)("debug", "Client sent opening <stream:stream> to %s", session.host);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	149
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	150 if not hosts[session.host] then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	151 -- We don't serve this host...
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	152 session:close{ condition = "host-unknown", text = "This server does not serve "..tostring(session.host)};
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	153 return;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	154 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	155
857 1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data Florian Zeitz <florob@babelmonkeys.de> parents: 856 diff changeset	156 -- COMPAT: Some current client implementations need this to be self-closing
1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data Florian Zeitz <florob@babelmonkeys.de> parents: 856 diff changeset	157 if session.self_closing_stream then
692 2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	158 send("<?xml version='1.0'?>"..tostring(st.stanza("stream:stream", {
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	159 xmlns = 'jabber:client', ["xmlns:stream"] = 'http://etherx.jabber.org/streams';
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	160 id = session.streamid, from = session.host, version = '1.0', ["xml:lang"] = 'en' })));
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	161 else
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	162 send("<?xml version='1.0'?>"..st.stanza("stream:stream", {
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	163 xmlns = 'jabber:client', ["xmlns:stream"] = 'http://etherx.jabber.org/streams';
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	164 id = session.streamid, from = session.host, version = '1.0', ["xml:lang"] = 'en' }):top_tag());
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	165 end
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	166
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	167 (session.log or log)("debug", "Sent reply <stream:stream> to client");
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	168 session.notopen = nil;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	169
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	170 -- If session.secure is false (not nil) then it means we /were/ encrypting
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	171 -- since we now have a new stream header, session is secured
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	172 if session.secure == false then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	173 session.secure = true;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	174 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	175
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	176 local features = st.stanza("stream:features");
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	177 hosts[session.host].events.fire_event("stream-features", { origin = session, features = features });
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	178 module:fire_event("stream-features", session, features);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	179
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	180 send(features);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	181 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	182
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	183 function stream_callbacks.streamclosed(session)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	184 session.log("debug", "Received </stream:stream>");
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	185 session:close(false);
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	186 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	187
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	188 function stream_callbacks.error(session, error, data)
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	189 if error == "no-stream" then
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	190 session.log("debug", "Invalid opening stream header");
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	191 session:close("invalid-namespace");
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	192 elseif error == "parse-error" then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	193 (session.log or log)("debug", "Client XML parse error: %s", tostring(data));
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	194 session:close("not-well-formed");
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	195 elseif error == "stream-error" then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	196 local condition, text = "undefined-condition";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	197 for child in data:children() do
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	198 if child.attr.xmlns == xmlns_xmpp_streams then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	199 if child.name ~= "text" then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	200 condition = child.name;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	201 else
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	202 text = child:get_text();
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	203 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	204 if condition ~= "undefined-condition" and text then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	205 break;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	206 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	207 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	208 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	209 text = condition .. (text and (" ("..text..")") or "");
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	210 session.log("info", "Session closed by remote with error: %s", text);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	211 session:close(nil, text);
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	212 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	213 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	214
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	215 local function handleerr(err) log("error", "Traceback[c2s]: %s: %s", tostring(err), traceback()); end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	216 function stream_callbacks.handlestanza(session, stanza)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	217 stanza = session.filter("stanzas/in", stanza);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	218 if stanza then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	219 return xpcall(function () return core_process_stanza(session, stanza) end, handleerr);
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	220 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	221 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	222
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	223 --- Session methods
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	224 local function session_close(session, reason)
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	225 local log = session.log or log;
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	226 if session.conn then
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	227 if session.notopen then
857 1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data Florian Zeitz <florob@babelmonkeys.de> parents: 856 diff changeset	228 -- COMPAT: Some current client implementations need this to be self-closing
1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data Florian Zeitz <florob@babelmonkeys.de> parents: 856 diff changeset	229 if session.self_closing_stream then
692 2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	230 session.send("<?xml version='1.0'?>"..tostring(st.stanza("stream:stream", default_stream_attr)));
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	231 else
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	232 session.send("<?xml version='1.0'?>"..st.stanza("stream:stream", default_stream_attr):top_tag());
2de21fa40382 mod_websocket: Make sending a self-closing <stream:stream> tag configurable Florian Zeitz <florob@babelmonkeys.de> parents: 691 diff changeset	233 end
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	234 end
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	235 if reason then -- nil == no err, initiated by us, false == initiated by client
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	236 if type(reason) == "string" then -- assume stream error
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	237 log("debug", "Disconnecting client, <stream:error> is: %s", reason);
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	238 session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' }));
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	239 elseif type(reason) == "table" then
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	240 if reason.condition then
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	241 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up();
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	242 if reason.text then
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	243 stanza:tag("text", stream_xmlns_attr):text(reason.text):up();
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	244 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	245 if reason.extra then
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	246 stanza:add_child(reason.extra);
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	247 end
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	248 log("debug", "Disconnecting client, <stream:error> is: %s", tostring(stanza));
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	249 session.send(stanza);
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	250 elseif reason.name then -- a stanza
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	251 log("debug", "Disconnecting client, <stream:error> is: %s", tostring(reason));
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	252 session.send(reason);
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	253 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	254 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	255 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	256 session.send("</stream:stream>");
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	257 function session.send() return false; end
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	258
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	259 local reason = (reason and (reason.text or reason.condition)) or reason;
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	260 session.log("info", "c2s stream for %s closed: %s", session.full_jid or ("<"..session.ip..">"), reason or "session closed");
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	261
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	262 -- Authenticated incoming stream may still be sending us stanzas, so wait for </stream:stream> from remote
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	263 local conn = session.conn;
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	264 if reason == nil and not session.notopen and session.type == "c2s" then
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	265 -- Grace time to process data from authenticated cleanly-closed stream
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	266 add_task(stream_close_timeout, function ()
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	267 if not session.destroyed then
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	268 session.log("warn", "Failed to receive a stream close response, closing connection anyway...");
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	269 sm_destroy_session(session, reason);
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	270 conn:close();
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	271 end
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	272 end);
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	273 else
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	274 sm_destroy_session(session, reason);
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	275 conn:close();
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	276 end
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	277 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	278 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	279
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	280 module:hook_global("user-deleted", function(event)
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	281 local username, host = event.username, event.host;
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	282 local user = hosts[host].sessions[username];
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	283 if user and user.sessions then
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	284 for jid, session in pairs(user.sessions) do
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	285 session:close{ condition = "not-authorized", text = "Account deleted" };
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	286 end
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	287 end
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	288 end, 200);
d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	289
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	290 --- Port listener
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	291 function listener.onconnect(conn)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	292 local session = sm_new_session(conn);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	293 sessions[conn] = session;
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	294
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	295 session.log("info", "Client connected");
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	296
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	297 -- Client is using legacy SSL (otherwise mod_tls sets this flag)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	298 if conn:ssl() then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	299 session.secure = true;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	300 end
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	301
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	302 if opt_keepalives then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	303 conn:setoption("keepalive", opt_keepalives);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	304 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	305
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	306 session.close = session_close;
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	307
853 4d27552ac443 mod_websocket: Don't offer starttls Florian Zeitz <florob@babelmonkeys.de> parents: 849 diff changeset	308 session.conn.starttls = nil;
4d27552ac443 mod_websocket: Don't offer starttls Florian Zeitz <florob@babelmonkeys.de> parents: 849 diff changeset	309
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	310 local stream = new_xmpp_stream(session, stream_callbacks);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	311 session.stream = stream;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	312 session.notopen = true;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	313
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	314 function session.reset_stream()
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	315 session.notopen = true;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	316 session.stream:reset();
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	317 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	318
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	319 local function websocket_close(code, message)
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	320 local data = string.char(code/0x100) .. string.char(code%0x100) .. message;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	321 conn:write(build_frame({opcode = 0x8, FIN = true, data = data}));
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	322 conn:close();
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	323 end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	324
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	325 local filter = session.filter;
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	326 local dataBuffer;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	327 local function handle_frame(frame)
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	328 module:log("debug", "Websocket received: %s (%i bytes)", frame.data, #frame.data);
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	329
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	330 -- Error cases
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	331 if frame.RSV1 or frame.RSV2 or frame.RSV3 then -- Reserved bits non zero
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	332 websocket_close(1002, "Reserved bits not zero");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	333 return false;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	334 end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	335
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	336 if frame.opcode >= 0x8 and frame.length > 125 then -- Control frame with too much payload
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	337 websocket_close(1002, "Payload too large");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	338 return false;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	339 end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	340
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	341 if frame.opcode >= 0x8 and not frame.FIN then -- Fragmented control frame
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	342 websocket_close(1002, "Fragmented control frame");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	343 return false;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	344 end
690 5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	345
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	346 if (frame.opcode > 0x2 and frame.opcode < 0x8) or (frame.opcode > 0xA) then
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	347 websocket_close(1002, "Reserved opcode");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	348 return false;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	349 end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	350
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	351 if frame.opcode == 0x0 and not dataBuffer then
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	352 websocket_close(1002, "Unexpected continuation frame");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	353 return false;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	354 end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	355
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	356 if (frame.opcode == 0x1 or frame.opcode == 0x2) and dataBuffer then
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	357 websocket_close(1002, "Continuation frame expected");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	358 return false;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	359 end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	360
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	361 -- Valid cases
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	362 if frame.opcode == 0x0 then -- Continuation frame
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	363 dataBuffer = dataBuffer .. frame.data;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	364 elseif frame.opcode == 0x1 then -- Text frame
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	365 dataBuffer = frame.data;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	366 elseif frame.opcode == 0x2 then -- Binary frame
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	367 websocket_close(1003, "Only text frames are supported");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	368 return false;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	369 elseif frame.opcode == 0x8 then -- Close request
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	370 websocket_close(1000, "Goodbye");
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	371 return false;
691 04662cc35280 mod_websocket: Answer ping frames Florian Zeitz <florob@babelmonkeys.de> parents: 690 diff changeset	372 elseif frame.opcode == 0x9 then -- Ping frame
04662cc35280 mod_websocket: Answer ping frames Florian Zeitz <florob@babelmonkeys.de> parents: 690 diff changeset	373 frame.opcode = 0xA;
04662cc35280 mod_websocket: Answer ping frames Florian Zeitz <florob@babelmonkeys.de> parents: 690 diff changeset	374 conn:write(build_frame(frame));
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	375 return true;
690 5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	376 else
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	377 log("warn", "Received frame with unsupported opcode %i", frame.opcode);
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	378 return true;
690 5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	379 end
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	380
690 5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	381 if frame.FIN then
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	382 data = dataBuffer;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	383 dataBuffer = nil;
690 5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	384
857 1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data Florian Zeitz <florob@babelmonkeys.de> parents: 856 diff changeset	385 -- COMPAT: Some current client implementations send a self-closing <stream:stream>
1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data Florian Zeitz <florob@babelmonkeys.de> parents: 856 diff changeset	386 data, session.self_closing_stream = data:gsub("^(<stream:stream.*)/>$", "%1>");
1393af36ec9c mod_websocket: Determine whether to use a self-closing stream tag, based on the client's initial data Florian Zeitz <florob@babelmonkeys.de> parents: 856 diff changeset	387 session.self_closing_stream = (session.self_closing_stream == 1)
690 5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	388
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	389 data = filter("bytes/in", data);
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	390 if data then
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	391 local ok, err = stream:feed(data);
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	392 if ok then return; end
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	393 log("debug", "Received invalid XML (%s) %d bytes: %s", tostring(err), #data, data:sub(1, 300):gsub("[\r\n]+", " "):gsub("[%z\1-\31]", "_"));
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	394 session:close("not-well-formed");
5acc203972f3 mod_websocket: Add fragmentation support Florian Zeitz <florob@babelmonkeys.de> parents: 689 diff changeset	395 end
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	396 end
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	397 return true;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	398 end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	399
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	400 local frameBuffer = "";
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	401 function session.data(data)
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	402 frameBuffer = frameBuffer .. data;
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	403 local frame, length = parse_frame(frameBuffer);
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	404
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	405 while frame do
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	406 frameBuffer = frameBuffer:sub(length + 1);
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	407 if not handle_frame(frame) then return; end
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	408 frame, length = parse_frame(frameBuffer);
32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	409 end
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	410 end
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	411
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	412 function session.send(s)
687 d141375ece4b mod_websocket: Move frame building into a function Florian Zeitz <florob@babelmonkeys.de> parents: 677 diff changeset	413 conn:write(build_frame({ FIN = true, opcode = 0x01, data = tostring(s)}));
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	414 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	415
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	416 if c2s_timeout then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	417 add_task(c2s_timeout, function ()
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	418 if session.type == "c2s_unauthed" then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	419 session:close("connection-timeout");
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	420 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	421 end);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	422 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	423
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	424 session.dispatch_stanza = stream_callbacks.handlestanza;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	425 end
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	426
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	427 function listener.onincoming(conn, data)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	428 local session = sessions[conn];
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	429 if session then
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	430 session.data(data);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	431 else
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	432 listener.onconnect(conn, data);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	433 session = sessions[conn];
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	434 session.data(data);
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	435 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	436 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	437
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	438 function listener.ondisconnect(conn, err)
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	439 local session = sessions[conn];
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	440 if session then
839 d297d76010d4 mod_websocket: Merge with current mod_c2s Florian Zeitz <florob@babelmonkeys.de> parents: 694 diff changeset	441 (session.log or log)("info", "Client disconnected: %s", err or "connection closed");
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	442 sm_destroy_session(session, err);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	443 sessions[conn] = nil;
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	444 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	445 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	446
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	447 function listener.associate_session(conn, session)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	448 sessions[conn] = session;
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	449 end
5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	450
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	451 function handle_request(event, path)
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	452 local request, response = event.request, event.response;
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	453
689 4d21bd5dde49 mod_websocket: Be nice to non-websocket clients Florian Zeitz <florob@babelmonkeys.de> parents: 688 diff changeset	454 if not request.headers.sec_websocket_key then
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients Florian Zeitz <florob@babelmonkeys.de> parents: 688 diff changeset	455 response.headers.content_type = "text/html";
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients Florian Zeitz <florob@babelmonkeys.de> parents: 688 diff changeset	456 return [[<!DOCTYPE html><html><head><title>Websocket</title></head><body>
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients Florian Zeitz <florob@babelmonkeys.de> parents: 688 diff changeset	457 <p>It works! Now point your WebSocket client to this URL to connect to Prosody.</p>
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients Florian Zeitz <florob@babelmonkeys.de> parents: 688 diff changeset	458 </body></html>]];
4d21bd5dde49 mod_websocket: Be nice to non-websocket clients Florian Zeitz <florob@babelmonkeys.de> parents: 688 diff changeset	459 end
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	460
844 a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	461 local wants_xmpp = false;
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	462 (request.headers.sec_websocket_protocol or ""):gsub("([^,]*),?", function (proto)
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	463 if proto == "xmpp" then wants_xmpp = true; end
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	464 end);
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	465
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	466 if not wants_xmpp then
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	467 return 501;
a0987c0e4e1d mod_websocket: Check whether the xmpp sub-protocol was requested Florian Zeitz <florob@babelmonkeys.de> parents: 842 diff changeset	468 end
842 32df4d13f178 mod_websocket: More robust frame handling Florian Zeitz <florob@babelmonkeys.de> parents: 840 diff changeset	469
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	470 response.conn:setlistener(listener);
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	471 response.status = "101 Switching Protocols";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	472 response.headers.Upgrade = "websocket";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	473 response.headers.Connection = "Upgrade";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	474 response.headers.Sec_WebSocket_Accept = base64(sha1(request.headers.sec_websocket_key .. "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"));
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	475 response.headers.Sec_WebSocket_Protocol = "xmpp";
856 7eb54ed58856 mod_websocket: Add CORS support Florian Zeitz <florob@babelmonkeys.de> parents: 853 diff changeset	476 response.headers.Access_Control_Allow_Origin = cross_domain;
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	477
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	478 return "";
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	479 end
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	480
688 e87678a52720 mod_websocket: Make this a shared module Florian Zeitz <florob@babelmonkeys.de> parents: 687 diff changeset	481 function module.add_host(module)
e87678a52720 mod_websocket: Make this a shared module Florian Zeitz <florob@babelmonkeys.de> parents: 687 diff changeset	482 module:depends("http");
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	483 module:provides("http", {
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	484 name = "xmpp-websocket";
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	485 route = {
849 6e2ec1825182 mod_websocket: Accept GET request without trailing / Florian Zeitz <florob@babelmonkeys.de> parents: 844 diff changeset	486 ["GET"] = handle_request;
6e2ec1825182 mod_websocket: Accept GET request without trailing / Florian Zeitz <florob@babelmonkeys.de> parents: 844 diff changeset	487 ["GET /"] = handle_request;
676 54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	488 };
54fa9d6d7809 mod_websocket: New mod_c2s based version, still WIP Florian Zeitz <florob@babelmonkeys.de> parents: 129 diff changeset	489 });
129 5fc00a3e47b5 mod_websocket: Initial commit Ali Sabil <ali.sabil@gmail.com> parents: diff changeset	490 end

prosody-modules

1393af36ec9c

mod_websocket/mod_websocket.lua

Software / code / prosody-modules

Annotate

mod_websocket/mod_websocket.lua @ 857:1393af36ec9c

Software `/` code `/` prosody-modules