prosody
1256f32f21b6
plugins/mod_websocket.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

plugins/mod_websocket.lua @ 11277:1256f32f21b6

mod_storage_memory: Support query for set of IDs
author Kim Alvefur <zash@zash.se>
date Tue, 12 Jan 2021 18:06:33 +0100
parent 11114:6a608ecb3471
child 11384:f9edf26c66fc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
1 -- Prosody IM
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
2 -- Copyright (C) 2012-2014 Florian Zeitz
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
3 --
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
4 -- This project is MIT/X11 licensed. Please see the
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
5 -- COPYING file in the source package for more information.
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
6 --
6894
f7203c7cb7ff mod_websocket: Silence luacheck warnings
Kim Alvefur <zash@zash.se>
parents: 6893
diff changeset
7 -- luacheck: ignore 431/log
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
8
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
9 module:set_global();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
10
6893
861790282dda mod_websocket: Import util.timer and session close timeout config option (thanks fairuz)
Kim Alvefur <zash@zash.se>
parents: 6793
diff changeset
11 local add_task = require "util.timer".add_task;
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
12 local add_filter = require "util.filters".add_filter;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
13 local sha1 = require "util.hashes".sha1;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
14 local base64 = require "util.encodings".base64.encode;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
15 local st = require "util.stanza";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
16 local parse_xml = require "util.xml".parse;
7761
e0e1f6d6fb4f mod_websocket: Use contains_token from util.http for checking if the requested WebSocket sub-protocols include XMPP
Kim Alvefur <zash@zash.se>
parents: 7760
diff changeset
17 local contains_token = require "util.http".contains_token;
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
18 local portmanager = require "core.portmanager";
6793
2bf1b7e2149a mod_websocket: Import sessionmanager (fixes traceback)
Kim Alvefur <zash@zash.se>
parents: 6397
diff changeset
19 local sm_destroy_session = require"core.sessionmanager".destroy_session;
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
20 local log = module._log;
11107
ddd0007e0f1b mod_websocket: Switch partial frame buffering to util.dbuffer
Matthew Wild <mwild1@gmail.com>
parents: 10616
diff changeset
21 local dbuffer = require "util.dbuffer";
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
22
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
23 local websocket_frames = require"net.websocket.frames";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
24 local parse_frame = websocket_frames.parse;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
25 local build_frame = websocket_frames.build;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
26 local build_close = websocket_frames.build_close;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
27 local parse_close = websocket_frames.parse_close;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
28
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
29 local t_concat = table.concat;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
30
11107
ddd0007e0f1b mod_websocket: Switch partial frame buffering to util.dbuffer
Matthew Wild <mwild1@gmail.com>
parents: 10616
diff changeset
31 local stanza_size_limit = module:get_option_number("c2s_stanza_size_limit", 10 * 1024 * 1024);
11109
7ec7dba7ba8b mod_websocket: Add separate limit for frame buffer size
Matthew Wild <mwild1@gmail.com>
parents: 11108
diff changeset
32 local frame_buffer_limit = module:get_option_number("websocket_frame_buffer_limit", 2 * stanza_size_limit);
11107
ddd0007e0f1b mod_websocket: Switch partial frame buffering to util.dbuffer
Matthew Wild <mwild1@gmail.com>
parents: 10616
diff changeset
33 local frame_fragment_limit = module:get_option_number("websocket_frame_fragment_limit", 8);
6893
861790282dda mod_websocket: Import util.timer and session close timeout config option (thanks fairuz)
Kim Alvefur <zash@zash.se>
parents: 6793
diff changeset
34 local stream_close_timeout = module:get_option_number("c2s_close_timeout", 5);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
35 local consider_websocket_secure = module:get_option_boolean("consider_websocket_secure");
9795
02735bc82126 mod_websocket: Drop CORS code in favor of that in mod_http
Kim Alvefur <zash@zash.se>
parents: 9415
diff changeset
36 local cross_domain = module:get_option("cross_domain_websocket");
02735bc82126 mod_websocket: Drop CORS code in favor of that in mod_http
Kim Alvefur <zash@zash.se>
parents: 9415
diff changeset
37 if cross_domain ~= nil then
02735bc82126 mod_websocket: Drop CORS code in favor of that in mod_http
Kim Alvefur <zash@zash.se>
parents: 9415
diff changeset
38 module:log("info", "The 'cross_domain_websocket' option has been deprecated");
7762
2208e6cd0d9f mod_websocket: Verify that the client-sent Origin header matches cross_domain_websocket (fixes #652)
Kim Alvefur <zash@zash.se>
parents: 7761
diff changeset
39 end
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
40 local xmlns_framing = "urn:ietf:params:xml:ns:xmpp-framing";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
41 local xmlns_streams = "http://etherx.jabber.org/streams";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
42 local xmlns_client = "jabber:client";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
43 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'};
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
44
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
45 module:depends("c2s")
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
46 local sessions = module:shared("c2s/sessions");
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
47 local c2s_listener = portmanager.get_service("c2s").listener;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
48
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
49 --- Session methods
7938
3629f03817f8 mod_websocket: Make open_stream method behave like the one from util.xmppstream
Kim Alvefur <zash@zash.se>
parents: 7937
diff changeset
50 local function session_open_stream(session, from, to)
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
51 local attr = {
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
52 xmlns = xmlns_framing,
7937
5b03a8003659 mod_websocket: Include xml:lang attribute on stream <open> (fixes #840)
Kim Alvefur <zash@zash.se>
parents: 7914
diff changeset
53 ["xml:lang"] = "en",
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
54 version = "1.0",
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
55 id = session.streamid or "",
7938
3629f03817f8 mod_websocket: Make open_stream method behave like the one from util.xmppstream
Kim Alvefur <zash@zash.se>
parents: 7937
diff changeset
56 from = from or session.host, to = to,
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
57 };
7938
3629f03817f8 mod_websocket: Make open_stream method behave like the one from util.xmppstream
Kim Alvefur <zash@zash.se>
parents: 7937
diff changeset
58 if session.stream_attrs then
3629f03817f8 mod_websocket: Make open_stream method behave like the one from util.xmppstream
Kim Alvefur <zash@zash.se>
parents: 7937
diff changeset
59 session:stream_attrs(from, to, attr)
3629f03817f8 mod_websocket: Make open_stream method behave like the one from util.xmppstream
Kim Alvefur <zash@zash.se>
parents: 7937
diff changeset
60 end
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
61 session.send(st.stanza("open", attr));
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
62 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
63
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
64 local function session_close(session, reason)
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
65 local log = session.log or log;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
66 if session.conn then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
67 if session.notopen then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
68 session:open_stream();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
69 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
70 if reason then -- nil == no err, initiated by us, false == initiated by client
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
71 local stream_error = st.stanza("stream:error");
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
72 if type(reason) == "string" then -- assume stream error
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
73 stream_error:tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' });
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
74 elseif type(reason) == "table" then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
75 if reason.condition then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
76 stream_error:tag(reason.condition, stream_xmlns_attr):up();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
77 if reason.text then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
78 stream_error:tag("text", stream_xmlns_attr):text(reason.text):up();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
79 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
80 if reason.extra then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
81 stream_error:add_child(reason.extra);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
82 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
83 elseif reason.name then -- a stanza
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
84 stream_error = reason;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
85 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
86 end
10111
0f335815244f plugins: Remove tostring call from logging
Kim Alvefur <zash@zash.se>
parents: 10097
diff changeset
87 log("debug", "Disconnecting client, <stream:error> is: %s", stream_error);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
88 session.send(stream_error);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
89 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
90
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
91 session.send(st.stanza("close", { xmlns = xmlns_framing }));
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
92 function session.send() return false; end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
93
9415
02155a10c5e9 mod_websocket: Silence the one warning instead of ignoring the entire file
Kim Alvefur <zash@zash.se>
parents: 9378
diff changeset
94 -- luacheck: ignore 422/reason
02155a10c5e9 mod_websocket: Silence the one warning instead of ignoring the entire file
Kim Alvefur <zash@zash.se>
parents: 9378
diff changeset
95 -- FIXME reason should be handled in common place
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
96 local reason = (reason and (reason.name or reason.text or reason.condition)) or reason;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
97 session.log("debug", "c2s stream for %s closed: %s", session.full_jid or ("<"..session.ip..">"), reason or "session closed");
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
98
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
99 -- Authenticated incoming stream may still be sending us stanzas, so wait for </stream:stream> from remote
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
100 local conn = session.conn;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
101 if reason == nil and not session.notopen and session.type == "c2s" then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
102 -- Grace time to process data from authenticated cleanly-closed stream
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
103 add_task(stream_close_timeout, function ()
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
104 if not session.destroyed then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
105 session.log("warn", "Failed to receive a stream close response, closing connection anyway...");
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
106 sm_destroy_session(session, reason);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
107 conn:write(build_close(1000, "Stream closed"));
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
108 conn:close();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
109 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
110 end);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
111 else
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
112 sm_destroy_session(session, reason);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
113 conn:write(build_close(1000, "Stream closed"));
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
114 conn:close();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
115 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
116 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
117 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
118
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
119
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
120 --- Filters
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
121 local function filter_open_close(data)
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
122 if not data:find(xmlns_framing, 1, true) then return data; end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
123
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
124 local oc = parse_xml(data);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
125 if not oc then return data; end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
126 if oc.attr.xmlns ~= xmlns_framing then return data; end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
127 if oc.name == "close" then return "</stream:stream>"; end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
128 if oc.name == "open" then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
129 oc.name = "stream:stream";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
130 oc.attr.xmlns = nil;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
131 oc.attr["xmlns:stream"] = xmlns_streams;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
132 return oc:top_tag();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
133 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
134
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
135 return data;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
136 end
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
137
10728
2764beb552cd mod_bosh, mod_websocket: Add config options to override GET responses
Matthew Wild <mwild1@gmail.com>
parents: 10617
diff changeset
138 local default_get_response_body = [[<!DOCTYPE html><html><head><title>Websocket</title></head><body>
2764beb552cd mod_bosh, mod_websocket: Add config options to override GET responses
Matthew Wild <mwild1@gmail.com>
parents: 10617
diff changeset
139 <p>It works! Now point your WebSocket client to this URL to connect to Prosody.</p>
2764beb552cd mod_bosh, mod_websocket: Add config options to override GET responses
Matthew Wild <mwild1@gmail.com>
parents: 10617
diff changeset
140 </body></html>]]
2764beb552cd mod_bosh, mod_websocket: Add config options to override GET responses
Matthew Wild <mwild1@gmail.com>
parents: 10617
diff changeset
141 local websocket_get_response_body = module:get_option_string("websocket_get_response_body", default_get_response_body)
2764beb552cd mod_bosh, mod_websocket: Add config options to override GET responses
Matthew Wild <mwild1@gmail.com>
parents: 10617
diff changeset
142
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
143 local function validate_frame(frame, max_length)
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
144 local opcode, length = frame.opcode, frame.length;
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
145
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
146 if max_length and length > max_length then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
147 return false, 1009, "Payload too large";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
148 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
149
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
150 -- Error cases
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
151 if frame.RSV1 or frame.RSV2 or frame.RSV3 then -- Reserved bits non zero
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
152 return false, 1002, "Reserved bits not zero";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
153 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
154
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
155 if opcode == 0x8 and frame.data then -- close frame
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
156 if length == 1 then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
157 return false, 1002, "Close frame with payload, but too short for status code";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
158 elseif length >= 2 then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
159 local status_code = parse_close(frame.data)
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
160 if status_code < 1000 then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
161 return false, 1002, "Closed with invalid status code";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
162 elseif ((status_code > 1003 and status_code < 1007) or status_code > 1011) and status_code < 3000 then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
163 return false, 1002, "Closed with reserved status code";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
164 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
165 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
166 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
167
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
168 if opcode >= 0x8 then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
169 if length > 125 then -- Control frame with too much payload
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
170 return false, 1002, "Payload too large";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
171 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
172
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
173 if not frame.FIN then -- Fragmented control frame
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
174 return false, 1002, "Fragmented control frame";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
175 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
176 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
177
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
178 if (opcode > 0x2 and opcode < 0x8) or (opcode > 0xA) then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
179 return false, 1002, "Reserved opcode";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
180 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
181
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
182 -- Check opcode
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
183 if opcode == 0x2 then -- Binary frame
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
184 return false, 1003, "Only text frames are supported, RFC 7395 3.2";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
185 elseif opcode == 0x8 then -- Close request
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
186 return false, 1000, "Goodbye";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
187 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
188
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
189 -- Other (XMPP-specific) validity checks
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
190 if not frame.FIN then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
191 return false, 1003, "Continuation frames are not supported, RFC 7395 3.3.3";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
192 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
193 if opcode == 0x01 and frame.data and frame.data:byte(1, 1) ~= 60 then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
194 return false, 1007, "Invalid payload start character, RFC 7395 3.3.3";
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
195 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
196
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
197 return true;
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
198 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
199
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
200
6894
f7203c7cb7ff mod_websocket: Silence luacheck warnings
Kim Alvefur <zash@zash.se>
parents: 6893
diff changeset
201 function handle_request(event)
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
202 local request, response = event.request, event.response;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
203 local conn = response.conn;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
204
7914
a6eb3b6bf903 mod_websocket: Set connections starttls method to false to prevent mod_tls from offering starttls (fixes #837)
Kim Alvefur <zash@zash.se>
parents: 7764
diff changeset
205 conn.starttls = false; -- Prevent mod_tls from believing starttls can be done
a6eb3b6bf903 mod_websocket: Set connections starttls method to false to prevent mod_tls from offering starttls (fixes #837)
Kim Alvefur <zash@zash.se>
parents: 7764
diff changeset
206
10325
f2bbad04cf64 mod_websocket: Guard against upgrading to websocket from a HEAD request
Kim Alvefur <zash@zash.se>
parents: 10111
diff changeset
207 if not request.headers.sec_websocket_key or request.method ~= "GET" then
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
208 response.headers.content_type = "text/html";
10728
2764beb552cd mod_bosh, mod_websocket: Add config options to override GET responses
Matthew Wild <mwild1@gmail.com>
parents: 10617
diff changeset
209 return websocket_get_response_body;
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
210 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
211
7761
e0e1f6d6fb4f mod_websocket: Use contains_token from util.http for checking if the requested WebSocket sub-protocols include XMPP
Kim Alvefur <zash@zash.se>
parents: 7760
diff changeset
212 local wants_xmpp = contains_token(request.headers.sec_websocket_protocol or "", "xmpp");
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
213
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
214 if not wants_xmpp then
7760
801d4c8e0f58 mod_websocket: Add some debug messages
Kim Alvefur <zash@zash.se>
parents: 7716
diff changeset
215 module:log("debug", "Client didn't want to talk XMPP, list of protocols was %s", request.headers.sec_websocket_protocol or "(empty)");
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
216 return 501;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
217 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
218
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
219 local function websocket_close(code, message)
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
220 conn:write(build_close(code, message));
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
221 conn:close();
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
222 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
223
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
224 local function websocket_handle_error(session, code, message)
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
225 if code == 1009 then -- stanza size limit exceeded
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
226 -- we close the session, rather than the connection,
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
227 -- otherwise a resuming client will simply resend the
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
228 -- offending stanza
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
229 session:close({ condition = "policy-violation", text = "stanza too large" });
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
230 else
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
231 websocket_close(code, message);
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
232 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
233 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
234
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
235 local function handle_frame(frame)
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
236 module:log("debug", "Websocket received frame: opcode=%0x, %i bytes", frame.opcode, #frame.data);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
237
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
238 -- Check frame makes sense
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
239 local frame_ok, err_status, err_text = validate_frame(frame, stanza_size_limit);
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
240 if not frame_ok then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
241 return frame_ok, err_status, err_text;
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
242 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
243
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
244 local opcode = frame.opcode;
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
245 if opcode == 0x9 then -- Ping frame
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
246 frame.opcode = 0xA;
10581
10d6d0d91f4e mod_websocket: Clear mask bit when reflecting ping frames (fixes #1484)
Kim Alvefur <zash@zash.se>
parents: 10092
diff changeset
247 frame.MASK = false; -- Clients send masked frames, servers don't, see #1484
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
248 conn:write(build_frame(frame));
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
249 return "";
7314
e327e5b592f5 mod_websocket: Remove warning about unsolicited pong frames "MAY be sent unsolicited" per RFC 6455 (thanks mt)
Kim Alvefur <zash@zash.se>
parents: 7294
diff changeset
250 elseif opcode == 0xA then -- Pong frame, MAY be sent unsolicited, eg as keepalive
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
251 return "";
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
252 elseif opcode ~= 0x1 then -- Not text frame (which is all we support)
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
253 log("warn", "Received frame with unsupported opcode %i", opcode);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
254 return "";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
255 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
256
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
257 return frame.data;
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
258 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
259
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
260 conn:setlistener(c2s_listener);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
261 c2s_listener.onconnect(conn);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
262
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
263 local session = sessions[conn];
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
264
8595
d3bbff01df9d mod_websocket: Transfer IP address derived by mod_http
Kim Alvefur <zash@zash.se>
parents: 8145
diff changeset
265 -- Use upstream IP if a HTTP proxy was used
d3bbff01df9d mod_websocket: Transfer IP address derived by mod_http
Kim Alvefur <zash@zash.se>
parents: 8145
diff changeset
266 -- See mod_http and #540
d3bbff01df9d mod_websocket: Transfer IP address derived by mod_http
Kim Alvefur <zash@zash.se>
parents: 8145
diff changeset
267 session.ip = request.ip;
d3bbff01df9d mod_websocket: Transfer IP address derived by mod_http
Kim Alvefur <zash@zash.se>
parents: 8145
diff changeset
268
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
269 session.secure = consider_websocket_secure or session.secure;
8789
4ae8dd415e94 mod_websocket: Store the request object on the session for use by other modules
Matthew Wild <mwild1@gmail.com>
parents: 8145
diff changeset
270 session.websocket_request = request;
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
271
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
272 session.open_stream = session_open_stream;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
273 session.close = session_close;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
274
11109
7ec7dba7ba8b mod_websocket: Add separate limit for frame buffer size
Matthew Wild <mwild1@gmail.com>
parents: 11108
diff changeset
275 local frameBuffer = dbuffer.new(frame_buffer_limit, frame_fragment_limit);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
276 add_filter(session, "bytes/in", function(data)
11108
fa1821b56f75 mod_websocket: handle full frame buffer and raise stream error
Matthew Wild <mwild1@gmail.com>
parents: 11107
diff changeset
277 if not frameBuffer:write(data) then
fa1821b56f75 mod_websocket: handle full frame buffer and raise stream error
Matthew Wild <mwild1@gmail.com>
parents: 11107
diff changeset
278 session.log("warn", "websocket frame buffer full - terminating session");
fa1821b56f75 mod_websocket: handle full frame buffer and raise stream error
Matthew Wild <mwild1@gmail.com>
parents: 11107
diff changeset
279 session:close({ condition = "resource-constraint", text = "frame buffer exceeded" });
fa1821b56f75 mod_websocket: handle full frame buffer and raise stream error
Matthew Wild <mwild1@gmail.com>
parents: 11107
diff changeset
280 return;
fa1821b56f75 mod_websocket: handle full frame buffer and raise stream error
Matthew Wild <mwild1@gmail.com>
parents: 11107
diff changeset
281 end
11107
ddd0007e0f1b mod_websocket: Switch partial frame buffering to util.dbuffer
Matthew Wild <mwild1@gmail.com>
parents: 10616
diff changeset
282
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
283 local cache = {};
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
284 local frame, length, partial = parse_frame(frameBuffer);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
285
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
286 while frame do
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
287 frameBuffer:discard(length);
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
288 local result, err_status, err_text = handle_frame(frame);
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
289 if not result then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
290 websocket_handle_error(session, err_status, err_text);
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
291 break;
11110
67fb92e312f1 mod_websocket: Enforce stanza size limit and close stream
Matthew Wild <mwild1@gmail.com>
parents: 11109
diff changeset
292 end
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
293 cache[#cache+1] = filter_open_close(result);
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
294 frame, length, partial = parse_frame(frameBuffer);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
295 end
11113
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
296
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
297 if partial then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
298 -- The header of the next frame is already in the buffer, run
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
299 -- some early validation here
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
300 local frame_ok, err_status, err_text = validate_frame(partial, stanza_size_limit);
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
301 if not frame_ok then
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
302 websocket_handle_error(session, err_status, err_text);
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
303 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
304 end
10301c214f4e mod_websocket: Refactor frame validity checking, also check partially-received frames against constraints
Matthew Wild <mwild1@gmail.com>
parents: 11111
diff changeset
305
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
306 return t_concat(cache, "");
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
307 end);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
308
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
309 add_filter(session, "stanzas/out", function(stanza)
10092
4b3c129e96f2 mod_websocket: Clone stanza before mutating (fixes #1398)
Kim Alvefur <zash@zash.se>
parents: 9805
diff changeset
310 stanza = st.clone(stanza);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
311 local attr = stanza.attr;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
312 attr.xmlns = attr.xmlns or xmlns_client;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
313 if stanza.name:find("^stream:") then
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
314 attr["xmlns:stream"] = attr["xmlns:stream"] or xmlns_streams;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
315 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
316 return stanza;
7294
5f4d0753c818 mod_websocket: Make sure stanza xmlns filter runs late in the chain
Kim Alvefur <zash@zash.se>
parents: 6894
diff changeset
317 end, -1000);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
318
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
319 add_filter(session, "bytes/out", function(data)
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
320 return build_frame({ FIN = true, opcode = 0x01, data = tostring(data)});
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
321 end);
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
322
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
323 response.status_code = 101;
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
324 response.headers.upgrade = "websocket";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
325 response.headers.connection = "Upgrade";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
326 response.headers.sec_webSocket_accept = base64(sha1(request.headers.sec_websocket_key .. "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"));
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
327 response.headers.sec_webSocket_protocol = "xmpp";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
328
10616
37936c72846d mod_websocket: Fire event on session creation (thanks Aaron van Meerten)
Matthew Wild <mwild1@gmail.com>
parents: 10581
diff changeset
329 module:fire_event("websocket-session", { session = session, request = request });
37936c72846d mod_websocket: Fire event on session creation (thanks Aaron van Meerten)
Matthew Wild <mwild1@gmail.com>
parents: 10581
diff changeset
330
7760
801d4c8e0f58 mod_websocket: Add some debug messages
Kim Alvefur <zash@zash.se>
parents: 7716
diff changeset
331 session.log("debug", "Sending WebSocket handshake");
801d4c8e0f58 mod_websocket: Add some debug messages
Kim Alvefur <zash@zash.se>
parents: 7716
diff changeset
332
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
333 return "";
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
334 end
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
335
7315
4fd984d1e445 mod_websocket: Send a ping on read timeout
Kim Alvefur <zash@zash.se>
parents: 7314
diff changeset
336 local function keepalive(event)
7340
7dea28dafc49 mod_websocket: Fix read timeout handler (thanks mt)
Kim Alvefur <zash@zash.se>
parents: 7315
diff changeset
337 local session = event.session;
7dea28dafc49 mod_websocket: Fix read timeout handler (thanks mt)
Kim Alvefur <zash@zash.se>
parents: 7315
diff changeset
338 if session.open_stream == session_open_stream then
7716
779a9ef6b4fd mod_websocket: Set FIN flag on ping frames (fixes #773)
Kim Alvefur <zash@zash.se>
parents: 7340
diff changeset
339 return session.conn:write(build_frame({ opcode = 0x9, FIN = true }));
7340
7dea28dafc49 mod_websocket: Fix read timeout handler (thanks mt)
Kim Alvefur <zash@zash.se>
parents: 7315
diff changeset
340 end
7315
4fd984d1e445 mod_websocket: Send a ping on read timeout
Kim Alvefur <zash@zash.se>
parents: 7314
diff changeset
341 end
4fd984d1e445 mod_websocket: Send a ping on read timeout
Kim Alvefur <zash@zash.se>
parents: 7314
diff changeset
342
4fd984d1e445 mod_websocket: Send a ping on read timeout
Kim Alvefur <zash@zash.se>
parents: 7314
diff changeset
343 module:hook("c2s-read-timeout", keepalive, -0.9);
4fd984d1e445 mod_websocket: Send a ping on read timeout
Kim Alvefur <zash@zash.se>
parents: 7314
diff changeset
344
9378
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
345 module:depends("http");
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
346 module:provides("http", {
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
347 name = "websocket";
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
348 default_path = "xmpp-websocket";
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
349 route = {
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
350 ["GET"] = handle_request;
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
351 ["GET /"] = handle_request;
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
352 };
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
353 });
a6f54df39624 mod_websocket: Serve HTTP in global context
Kim Alvefur <zash@zash.se>
parents: 8794
diff changeset
354
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
355 function module.add_host(module)
7315
4fd984d1e445 mod_websocket: Send a ping on read timeout
Kim Alvefur <zash@zash.se>
parents: 7314
diff changeset
356 module:hook("c2s-read-timeout", keepalive, -0.9);
6397
6f75f8043936 mod_websocket: Initial commit (based on the prosody-modules version)
Florian Zeitz <florob@babelmonkeys.de>
parents:
diff changeset
357 end