Annotate

core/s2smanager.lua @ 995:a007d85b4045

core.s2smanager: Don't initiate dialback if we don't have a connection yet
author Matthew Wild <mwild1@gmail.com>
date Sun, 12 Apr 2009 13:14:45 +0100
parent 977:6f0bdf9e4dfb
child 1006:9166d7a8c3c0
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2c0b9e3c11c3 0.3->0.4
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1 -- Prosody IM v0.4
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2 -- Copyright (C) 2008-2009 Matthew Wild
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3 -- Copyright (C) 2008-2009 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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10
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11 local hosts = hosts;
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12 local sessions = sessions;
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13 local core_process_stanza = function(a, b) core_process_stanza(a, b); end
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14 local socket = require "socket";
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15 local format = string.format;
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16 local t_insert, t_sort = table.insert, table.sort;
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17 local get_traceback = debug.traceback;
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18 local tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber
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19 = tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber;
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20
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21 local idna_to_ascii = require "util.encodings".idna.to_ascii;
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22 local connlisteners_get = require "net.connlisteners".get;
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23 local wrapclient = require "net.server".wrapclient;
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24 local modulemanager = require "core.modulemanager";
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25 local st = require "stanza";
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26 local stanza = st.stanza;
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27 local nameprep = require "util.encodings".stringprep.nameprep;
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29 local uuid_gen = require "util.uuid".generate;
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30
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31 local logger_init = require "util.logger".init;
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32
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33 local log = logger_init("s2smanager");
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34
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35 local sha256_hash = require "util.hashes".sha256;
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36
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37 local dialback_secret = sha256_hash(tostring{} .. math.random() .. socket.gettime(), true);
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38
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39 local adns = require "net.adns";
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40
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41 incoming_s2s = {};
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42 local incoming_s2s = incoming_s2s;
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43
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44 module "s2smanager"
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45
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46 local function compare_srv_priorities(a,b) return a.priority < b.priority or a.weight < b.weight; end
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47
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48 local function bounce_sendq(session)
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49 local sendq = session.sendq;
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50 if sendq then
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51 session.log("debug", "sending error replies for "..#sendq.." queued stanzas because of failed outgoing connection to "..tostring(session.to_host));
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52 local dummy = {
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53 type = "s2sin";
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54 send = function(s)
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55 (session.log or log)("error", "Replying to to an s2s error reply, please report this! Traceback: %s", get_traceback());
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56 end;
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57 dummy = true;
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58 };
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59 for i, data in ipairs(sendq) do
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60 local reply = data[2];
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61 local xmlns = reply.attr.xmlns;
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62 if not xmlns or xmlns == "jabber:client" or xmlns == "jabber:server" then
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63 reply.attr.type = "error";
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64 reply:tag("error", {type = "cancel"})
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65 :tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up();
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66 core_process_stanza(dummy, reply);
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67 end
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68 sendq[i] = nil;
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69 end
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70 session.sendq = nil;
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71 end
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72 end
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73
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74 function send_to_host(from_host, to_host, data)
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75 local host = hosts[from_host].s2sout[to_host];
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76 if host then
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77 -- We have a connection to this host already
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78 if host.type == "s2sout_unauthed" and data.name ~= "db:verify" and ((not data.xmlns) or data.xmlns == "jabber:client" or data.xmlns == "jabber:server") then
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79 (host.log or log)("debug", "trying to send over unauthed s2sout to "..to_host);
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80 if not host.notopen and not host.dialback_key and host.sends2s then
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81 host.log("debug", "dialback had not been initiated");
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82 initiate_dialback(host);
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83 end
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84
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85 -- Queue stanza until we are able to send it
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86 if host.sendq then t_insert(host.sendq, {tostring(data), st.reply(data)});
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87 else host.sendq = { {tostring(data), st.reply(data)} }; end
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88 host.log("debug", "stanza [%s] queued ", data.name);
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89 elseif host.type == "local" or host.type == "component" then
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90 log("error", "Trying to send a stanza to ourselves??")
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91 log("error", "Traceback: %s", get_traceback());
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92 log("error", "Stanza: %s", tostring(data));
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93 else
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94 (host.log or log)("debug", "going to send stanza to "..to_host.." from "..from_host);
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95 -- FIXME
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96 if host.from_host ~= from_host then
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97 log("error", "WARNING! This might, possibly, be a bug, but it might not...");
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98 log("error", "We are going to send from %s instead of %s", tostring(host.from_host), tostring(from_host));
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99 end
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100 host.sends2s(data);
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101 host.log("debug", "stanza sent over "..host.type);
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102 end
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103 else
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104 log("debug", "opening a new outgoing connection for this stanza");
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105 local host_session = new_outgoing(from_host, to_host);
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106 -- Store in buffer
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107 host_session.sendq = { {tostring(data), st.reply(data)} };
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108 if (not host_session.connecting) and (not host_session.conn) then destroy_session(host_session); end
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109 end
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110 end
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111
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112 local open_sessions = 0;
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113
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114 function new_incoming(conn)
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115 local session = { conn = conn, type = "s2sin_unauthed", direction = "incoming", hosts = {} };
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116 if true then
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117 session.trace = newproxy(true);
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118 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end;
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119 end
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120 open_sessions = open_sessions + 1;
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121 local w, log = conn.write, logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$"));
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122 session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(tostring(t)); end
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123 incoming_s2s[session] = true;
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124 return session;
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125 end
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126
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127 function new_outgoing(from_host, to_host)
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128 local host_session = { to_host = to_host, from_host = from_host, notopen = true, type = "s2sout_unauthed", direction = "outgoing" };
260
182f0c895676 Now outgoing s2s sessions are associated with their from_host, fixes #15
Matthew Wild <mwild1@gmail.com>
parents: 259
diff changeset
129 hosts[from_host].s2sout[to_host] = host_session;
148
4c0dcd245d34 s2s works! \o/ \o/
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parents:
diff changeset
130
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
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diff changeset
131 local log;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
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diff changeset
132 do
543
cf6e19ea1cbc Fix logger ids for c2s and s2sout
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parents: 519
diff changeset
133 local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$");
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
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parents: 360
diff changeset
134 log = logger_init(conn_name);
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
135 host_session.log = log;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
136 end
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
137
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
138 attempt_connection(host_session);
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
139
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
140 return host_session;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
141 end
353
e7d776b5ebb9 Remove an old FIXME comment
Matthew Wild <mwild1@gmail.com>
parents: 351
diff changeset
142
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
143
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
144 function attempt_connection(host_session, err)
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
145 local from_host, to_host = host_session.from_host, host_session.to_host;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
146 local connect_host, connect_port = idna_to_ascii(to_host), 5269;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
147
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
148 if not err then -- This is our first attempt
974
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
149 host_session.connecting = true;
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
150 local answer =
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
151 adns.lookup(function (answer)
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
152 host_session.connecting = nil;
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
153 if answer then
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
154 log("debug", to_host.." has SRV records, handling...");
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
155 local srv_hosts = {};
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
156 host_session.srv_hosts = srv_hosts;
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
157 for _, record in ipairs(answer) do
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
158 t_insert(srv_hosts, record.srv);
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
159 end
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
160 t_sort(srv_hosts, compare_srv_priorities);
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
161
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
162 local srv_choice = srv_hosts[1];
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
163 host_session.srv_choice = 1;
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
164 if srv_choice then
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
165 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port;
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
166 log("debug", "Best record found, will connect to %s:%d", connect_host, connect_port);
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
167 end
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
168 else
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
169 log("debug", to_host.." has no SRV records, falling back to A");
337
4a1dd1c2c219 We have SRV resolving \o/
Matthew Wild <mwild1@gmail.com>
parents: 333
diff changeset
170 end
974
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
171 -- Try with SRV, or just the plain hostname if no SRV
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
172 return try_connect(host_session, connect_host, connect_port);
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
173 end, "_xmpp-server._tcp."..connect_host..".", "SRV");
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
174 return true; -- Attempt in progress
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
175 elseif host_session.srv_hosts and #host_session.srv_hosts > host_session.srv_choice then -- Not our first attempt, and we also have SRV
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
176 host_session.srv_choice = host_session.srv_choice + 1;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
177 local srv_choice = host_session.srv_hosts[host_session.srv_choice];
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
178 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port;
435
4087aa611de2 Log reason for connection failure
Matthew Wild <mwild1@gmail.com>
parents: 434
diff changeset
179 host_session.log("debug", "Connection failed (%s). Attempt #%d: This time to %s:%d", tostring(err), host_session.srv_choice, connect_host, connect_port);
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
180 else
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
181 host_session.log("debug", "Out of connection options, can't connect to %s", tostring(host_session.to_host));
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
182 -- We're out of options
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
183 return false;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
184 end
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
185
960
6bc16062da6c core.s2smanager: Check for valid host and port before attempting connection
Matthew Wild <mwild1@gmail.com>
parents: 959
diff changeset
186 if not (connect_host and connect_port) then
6bc16062da6c core.s2smanager: Check for valid host and port before attempting connection
Matthew Wild <mwild1@gmail.com>
parents: 959
diff changeset
187 -- Likely we couldn't resolve DNS
6bc16062da6c core.s2smanager: Check for valid host and port before attempting connection
Matthew Wild <mwild1@gmail.com>
parents: 959
diff changeset
188 return false;
6bc16062da6c core.s2smanager: Check for valid host and port before attempting connection
Matthew Wild <mwild1@gmail.com>
parents: 959
diff changeset
189 end
6bc16062da6c core.s2smanager: Check for valid host and port before attempting connection
Matthew Wild <mwild1@gmail.com>
parents: 959
diff changeset
190
974
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
191 return try_connect(host_session, connect_host, connect_port);
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
192 end
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
193
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
194 function try_connect(host_session, connect_host, connect_port)
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
195 log("debug", "Beginning new connection attempt to %s (%s:%d)", host_session.to_host, connect_host, connect_port);
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
196 -- Ok, we're going to try to connect
974
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
197
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
198 local from_host, to_host = host_session.from_host, host_session.to_host;
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
199
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
200 local conn, handler = socket.tcp()
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
201
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
202 conn:settimeout(0);
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
203 local success, err = conn:connect(connect_host, connect_port);
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
204 if not success and err ~= "timeout" then
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
205 log("warn", "s2s connect() failed: %s", err);
631
6957fe7b0313 Bounce stanza errors on failed s2s
Waqas Hussain <waqas20@gmail.com>
parents: 621
diff changeset
206 return false;
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
207 end
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
208
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
209 local cl = connlisteners_get("xmppserver");
739
1def06cd9311 Port to new server.lua, quite some changes, but I believe everything to be working
Matthew Wild <mwild1@gmail.com>
parents: 631
diff changeset
210 conn = wrapclient(conn, connect_host, connect_port, cl, cl.default_mode or 1, hosts[from_host].ssl_ctx, false );
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
211 host_session.conn = conn;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
212
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
213 -- Register this outgoing connection so that xmppserver_listener knows about it
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
214 -- otherwise it will assume it is a new incoming connection
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
215 cl.register_outgoing(conn, host_session);
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
216
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
217 local w = conn.write;
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
218 host_session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(tostring(t)); end
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
219
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
220 conn.write(format([[<stream:stream xmlns='jabber:server' xmlns:db='jabber:server:dialback' xmlns:stream='http://etherx.jabber.org/streams' from='%s' to='%s' version='1.0'>]], from_host, to_host));
974
Matthew Wild <mwild1@gmail.com>
parents: 963
diff changeset
221 log("debug", "Connection attempt in progress...");
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
222 return true;
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 end
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
225 function streamopened(session, attr)
186
bfa8a30ea488 sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
Matthew Wild <mwild1@gmail.com>
parents: 179
diff changeset
226 local send = session.sends2s;
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227
544
efde848869c5 Don't send stream:features to incoming s2s connections
Matthew Wild <mwild1@gmail.com>
parents: 543
diff changeset
228 -- TODO: #29: SASL/TLS on s2s streams
efde848869c5 Don't send stream:features to incoming s2s connections
Matthew Wild <mwild1@gmail.com>
parents: 543
diff changeset
229 session.version = 0; --tonumber(attr.version) or 0;
efde848869c5 Don't send stream:features to incoming s2s connections
Matthew Wild <mwild1@gmail.com>
parents: 543
diff changeset
230
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
231 if session.version >= 1.0 and not (attr.to and attr.from) then
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
232 log("warn", (session.to_host or "(unknown)").." failed to specify 'to' or 'from' hostname as per RFC");
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
233 end
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
234
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
235 if session.direction == "incoming" then
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
236 -- Send a reply stream header
938
663f75dd7b42 Fixed: Some nil access bugs
Waqas Hussain <waqas20@gmail.com>
parents: 931
diff changeset
237 session.to_host = attr.to and nameprep(attr.to);
663f75dd7b42 Fixed: Some nil access bugs
Waqas Hussain <waqas20@gmail.com>
parents: 931
diff changeset
238 session.from_host = attr.from and nameprep(attr.from);
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
239
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
240 session.streamid = uuid_gen();
360
e918c979ad1a Remove or comment useless prints, or change them to log()
Matthew Wild <mwild1@gmail.com>
parents: 354
diff changeset
241 (session.log or log)("debug", "incoming s2s received <stream:stream>");
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
242 send("<?xml version='1.0'?>");
852
3c2d99ba1dc2 core.s2smanager: Remove some old commented code, break a long line in 2
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
243 send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback',
3c2d99ba1dc2 core.s2smanager: Remove some old commented code, break a long line in 2
Matthew Wild <mwild1@gmail.com>
parents: 760
diff changeset
244 ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host }):top_tag());
331
830fd67f9378 Quite some changes, to:
Matthew Wild <mwild1@gmail.com>
parents: 327
diff changeset
245 if session.to_host and not hosts[session.to_host] then
830fd67f9378 Quite some changes, to:
Matthew Wild <mwild1@gmail.com>
parents: 327
diff changeset
246 -- Attempting to connect to a host we don't serve
434
0d7ba3742f7a (Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents: 360
diff changeset
247 session:close({ condition = "host-unknown"; text = "This host does not serve "..session.to_host });
331
830fd67f9378 Quite some changes, to:
Matthew Wild <mwild1@gmail.com>
parents: 327
diff changeset
248 return;
830fd67f9378 Quite some changes, to:
Matthew Wild <mwild1@gmail.com>
parents: 327
diff changeset
249 end
345
6a7acfc1c933 Send version=1.0 in s2s stream header. Send s2s stream:features when in 1.0 mode.
Matthew Wild <mwild1@gmail.com>
parents: 344
diff changeset
250 if session.version >= 1.0 then
6a7acfc1c933 Send version=1.0 in s2s stream header. Send s2s stream:features when in 1.0 mode.
Matthew Wild <mwild1@gmail.com>
parents: 344
diff changeset
251 send(st.stanza("stream:features")
6a7acfc1c933 Send version=1.0 in s2s stream header. Send s2s stream:features when in 1.0 mode.
Matthew Wild <mwild1@gmail.com>
parents: 344
diff changeset
252 :tag("dialback", { xmlns='urn:xmpp:features:dialback' }):tag("optional"):up():up());
6a7acfc1c933 Send version=1.0 in s2s stream header. Send s2s stream:features when in 1.0 mode.
Matthew Wild <mwild1@gmail.com>
parents: 344
diff changeset
253 end
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
254 elseif session.direction == "outgoing" then
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
255 -- If we are just using the connection for verifying dialback keys, we won't try and auth it
190
1e993b7deae7 General fixes for s2s, to make it more robust (I hope), sending data to remote hosts sane (s2ssession.send() works as expected), recycle outgoing dialback connections, etc.
Matthew Wild <mwild1@gmail.com>
parents: 186
diff changeset
256 if not attr.id then error("stream response did not give us a streamid!!!"); end
1e993b7deae7 General fixes for s2s, to make it more robust (I hope), sending data to remote hosts sane (s2ssession.send() works as expected), recycle outgoing dialback connections, etc.
Matthew Wild <mwild1@gmail.com>
parents: 186
diff changeset
257 session.streamid = attr.id;
1e993b7deae7 General fixes for s2s, to make it more robust (I hope), sending data to remote hosts sane (s2ssession.send() works as expected), recycle outgoing dialback connections, etc.
Matthew Wild <mwild1@gmail.com>
parents: 186
diff changeset
258
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
259 if not session.dialback_verifying then
190
1e993b7deae7 General fixes for s2s, to make it more robust (I hope), sending data to remote hosts sane (s2ssession.send() works as expected), recycle outgoing dialback connections, etc.
Matthew Wild <mwild1@gmail.com>
parents: 186
diff changeset
260 initiate_dialback(session);
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
261 else
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
262 mark_connected(session);
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
263 end
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
264 end
259
1485d272400d Some more logging fixes
Matthew Wild <mwild1@gmail.com>
parents: 258
diff changeset
265
148
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
266 session.notopen = nil;
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
267 end
4c0dcd245d34 s2s works! \o/ \o/
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
268
959
e3db909065f2 sessionmanager, s2smanager, mod_component: Send reply </stream:stream> when client closes stream
Matthew Wild <mwild1@gmail.com>
parents: 938
diff changeset
269 function streamclosed(session)
963
43b140edfd84 core.s2smanager: Look away... wait for it... now! Hopefully s2s should be back to normal.
Matthew Wild <mwild1@gmail.com>
parents: 960
diff changeset
270 session.sends2s("</stream:stream>");
959
e3db909065f2 sessionmanager, s2smanager, mod_component: Send reply </stream:stream> when client closes stream
Matthew Wild <mwild1@gmail.com>
parents: 938
diff changeset
271 session.notopen = true;
e3db909065f2 sessionmanager, s2smanager, mod_component: Send reply </stream:stream> when client closes stream
Matthew Wild <mwild1@gmail.com>
parents: 938
diff changeset
272 end
e3db909065f2 sessionmanager, s2smanager, mod_component: Send reply </stream:stream> when client closes stream
Matthew Wild <mwild1@gmail.com>
parents: 938
diff changeset
273
190
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274 function initiate_dialback(session)
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275 -- generate dialback key
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276 session.dialback_key = generate_dialback(session.streamid, session.to_host, session.from_host);
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277 session.sends2s(format("<db:result from='%s' to='%s'>%s</db:result>", session.from_host, session.to_host, session.dialback_key));
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278 session.log("info", "sent dialback key on outgoing s2s stream");
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279 end
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280
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281 function generate_dialback(id, to, from)
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282 return sha256_hash(id..to..from..dialback_secret, true);
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283 end
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284
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285 function verify_dialback(id, to, from, key)
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286 return key == generate_dialback(id, to, from);
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287 end
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288
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289 function make_authenticated(session, host)
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290 if session.type == "s2sout_unauthed" then
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291 session.type = "s2sout";
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292 elseif session.type == "s2sin_unauthed" then
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293 session.type = "s2sin";
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294 if host then
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295 session.hosts[host].authed = true;
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296 end
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297 elseif session.type == "s2sin" and host then
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298 session.hosts[host].authed = true;
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299 else
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300 return false;
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301 end
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302 session.log("info", "connection is now authenticated");
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303
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304 mark_connected(session);
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305
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306 return true;
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307 end
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308
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309 function mark_connected(session)
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310 local sendq, send = session.sendq, session.sends2s;
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311
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312 local from, to = session.from_host, session.to_host;
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313
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314 session.log("debug", session.direction.." s2s connection "..from.."->"..to.." is now complete");
186
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315
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316 local send_to_host = send_to_host;
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317 function session.send(data) send_to_host(to, from, data); end
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318
186
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319
190
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320 if session.direction == "outgoing" then
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321 if sendq then
269
3cfac0e5e6ca Log how many queued stanzas we send
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322 session.log("debug", "sending "..#sendq.." queued stanzas across new outgoing connection to "..session.to_host);
190
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323 for i, data in ipairs(sendq) do
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324 send(data[1]);
190
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325 sendq[i] = nil;
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326 end
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327 session.sendq = nil;
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328 end
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329 end
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330 end
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331
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332 function destroy_session(session)
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333 (session.log or log)("info", "Destroying "..tostring(session.direction).." session "..tostring(session.from_host).."->"..tostring(session.to_host));
331
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334
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335 if session.direction == "outgoing" then
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182f0c895676 Now outgoing s2s sessions are associated with their from_host, fixes #15
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336 hosts[session.from_host].s2sout[session.to_host] = nil;
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337 bounce_sendq(session);
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338 elseif session.direction == "incoming" then
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339 incoming_s2s[session] = nil;
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340 end
331
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341
164
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342 for k in pairs(session) do
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343 if k ~= "trace" then
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344 session[k] = nil;
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345 end
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346 end
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347 end
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348
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bbbd169b326b Just committing this warning, because I want to know if the problem really affects us
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349 return _M;