Sun, 22 Nov 2009 04:42:47 +0000
net.adns: Update for new net.server API (doesn't work with libevent yet)
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Remove version number from copyright headers
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1 | -- Prosody IM |
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Update copyright notices for 2009
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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 | -- |
758 | 5 | -- This project is MIT/X11 licensed. Please see the |
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 | |
148 | 10 | |
11 | local hosts = hosts; | |
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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s2smanager: Timeout DNS requests after 60 seconds (or dns_timeout in config)
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14 | local add_task = require "util.timer".add_task; |
148 | 15 | local socket = require "socket"; |
16 | local format = string.format; | |
337 | 17 | local t_insert, t_sort = table.insert, table.sort; |
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18 | local get_traceback = debug.traceback; |
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core.s2smanager: Remove some debugging
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19 | local tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber |
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20 | = tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber; |
148 | 21 | |
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(Basic) IDNA and SRV fallback support
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22 | local idna_to_ascii = require "util.encodings".idna.to_ascii; |
148 | 23 | local connlisteners_get = require "net.connlisteners".get; |
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Port to new server.lua, quite some changes, but I believe everything to be working
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24 | local wrapclient = require "net.server".wrapclient; |
148 | 25 | local modulemanager = require "core.modulemanager"; |
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Missed importing a function in last commit
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26 | local st = require "stanza"; |
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27 | local stanza = st.stanza; |
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Fixed: s2smanager: Apply nameprep on hostnames passed in stream tag (part of issue #57)
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28 | local nameprep = require "util.encodings".stringprep.nameprep; |
148 | 29 | |
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s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
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30 | local fire_event = require "core.eventmanager".fire_event; |
148 | 31 | local uuid_gen = require "util.uuid".generate; |
32 | ||
33 | local logger_init = require "util.logger".init; | |
34 | ||
35 | local log = logger_init("s2smanager"); | |
36 | ||
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Switched from md5 to sha256 for dialback key generation
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37 | local sha256_hash = require "util.hashes".sha256; |
148 | 38 | |
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s2smanager: Use a UUID as the dialback secret
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39 | local dialback_secret = uuid_gen(); |
148 | 40 | |
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s2smanager: Compatibility with domains which use CNAMEs
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41 | local adns, dns = require "net.adns", require "net.dns"; |
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s2smanager: Fix access of 'config' global without requiring configmanager
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42 | local config = require "core.configmanager"; |
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43 | local connect_timeout = config.get("*", "core", "s2s_timeout") or 60; |
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s2smanager: Timeout DNS requests after 60 seconds (or dns_timeout in config)
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44 | local dns_timeout = config.get("*", "core", "dns_timeout") or 60; |
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core.s2smanager: Don't recurse CNAMEs infinitely :)
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45 | local max_dns_depth = config.get("*", "core", "dns_max_depth") or 3; |
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46 | |
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Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
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47 | incoming_s2s = {}; |
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s2smanager: Add incoming_s2s to the prosody object
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48 | _G.prosody.incoming_s2s = incoming_s2s; |
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49 | local incoming_s2s = incoming_s2s; |
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50 | |
148 | 51 | module "s2smanager" |
52 | ||
337 | 53 | local function compare_srv_priorities(a,b) return a.priority < b.priority or a.weight < b.weight; end |
54 | ||
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55 | local function bounce_sendq(session) |
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56 | local sendq = session.sendq; |
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57 | if sendq then |
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s2smanager: Miscellaneous logging improvements, changing levels, improving messages and using session loggers where possible
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58 | session.log("info", "sending error replies for "..#sendq.." queued stanzas because of failed outgoing connection to "..tostring(session.to_host)); |
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59 | local dummy = { |
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60 | type = "s2sin"; |
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61 | send = function(s) |
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62 | (session.log or log)("error", "Replying to to an s2s error reply, please report this! Traceback: %s", get_traceback()); |
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63 | end; |
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64 | dummy = true; |
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65 | }; |
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66 | for i, data in ipairs(sendq) do |
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67 | local reply = data[2]; |
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68 | local xmlns = reply.attr.xmlns; |
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69 | if not xmlns or xmlns == "jabber:client" or xmlns == "jabber:server" then |
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70 | reply.attr.type = "error"; |
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71 | reply:tag("error", {type = "cancel"}) |
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72 | :tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); |
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73 | core_process_stanza(dummy, reply); |
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74 | end |
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75 | sendq[i] = nil; |
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76 | end |
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77 | session.sendq = nil; |
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78 | end |
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79 | end |
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80 | |
148 | 81 | function send_to_host(from_host, to_host, data) |
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82 | local host = hosts[from_host].s2sout[to_host]; |
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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.
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83 | if host then |
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Some s2s fixes. Now connect() does not block, and stanzas are not lost when connection is slow
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84 | -- We have a connection to this host already |
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s2smanager: Queue db:verify unless we already sent a db:result (if we had then it can could a dialback deadlock). Also remove some redundant code which could cause a db:result to be sent while still negotiating features (e.g. TLS) and break things. Collectively these fix a 'random' s2s failure (usually with ejabberd for some reason) - resulting in an 'unbound prefix' XML error, or 'ssl handshake failure'. Was this commit message long enough? I think so.
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85 | if host.type == "s2sout_unauthed" and (data.name ~= "db:verify" or not host.dialback_key) and ((not data.xmlns) or data.xmlns == "jabber:client" or data.xmlns == "jabber:server") then |
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Fix for s2s with jabberd2 (we weren't routing db:verify's over s2sout_unauthed)
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86 | (host.log or log)("debug", "trying to send over unauthed s2sout to "..to_host); |
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Some s2s fixes. Now connect() does not block, and stanzas are not lost when connection is slow
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87 | |
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88 | -- Queue stanza until we are able to send it |
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89 | if host.sendq then t_insert(host.sendq, {tostring(data), st.reply(data)}); |
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90 | else host.sendq = { {tostring(data), st.reply(data)} }; end |
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Remove an incorrect line which I didn't add, and fix the proper way. Corrects the sending of stanzas over unauthed s2sout's. Also fixes mod_dialback to send stanzas and not strings.
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91 | host.log("debug", "stanza [%s] queued ", data.name); |
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92 | elseif host.type == "local" or host.type == "component" then |
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93 | log("error", "Trying to send a stanza to ourselves??") |
256 | 94 | log("error", "Traceback: %s", get_traceback()); |
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Yep, s2s definitely works now. This is just a small fix for logging...
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95 | log("error", "Stanza: %s", tostring(data)); |
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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.
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96 | else |
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97 | (host.log or log)("debug", "going to send stanza to "..to_host.." from "..from_host); |
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Just committing this warning, because I want to know if the problem really affects us
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98 | -- FIXME |
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99 | if host.from_host ~= from_host then |
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100 | log("error", "WARNING! This might, possibly, be a bug, but it might not..."); |
331 | 101 | log("error", "We are going to send from %s instead of %s", tostring(host.from_host), tostring(from_host)); |
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102 | end |
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103 | host.sends2s(data); |
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104 | host.log("debug", "stanza sent over "..host.type); |
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105 | end |
148 | 106 | else |
107 | log("debug", "opening a new outgoing connection for this stanza"); | |
108 | local host_session = new_outgoing(from_host, to_host); | |
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s2smanager: Fail outgoing s2s connection if hostname does not pass idna_to_ascii(), thanks Flo + waqas
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109 | |
148 | 110 | -- Store in buffer |
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111 | host_session.sendq = { {tostring(data), st.reply(data)} }; |
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112 | log("debug", "stanza [%s] queued until connection complete", tostring(data.name)); |
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113 | if (not host_session.connecting) and (not host_session.conn) then |
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114 | log("warn", "Connection to %s failed already, destroying session...", to_host); |
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115 | destroy_session(host_session); |
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116 | end |
148 | 117 | end |
118 | end | |
119 | ||
120 | local open_sessions = 0; | |
121 | ||
122 | function new_incoming(conn) | |
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123 | local session = { conn = conn, type = "s2sin_unauthed", direction = "incoming", hosts = {} }; |
148 | 124 | if true then |
125 | session.trace = newproxy(true); | |
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126 | getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end; |
148 | 127 | end |
128 | open_sessions = open_sessions + 1; | |
343 | 129 | local w, log = conn.write, logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$")); |
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core.s2smanager, xmppserver_listener: Move the responsibility of setting session.log from the latter to the former for incoming sessions (outgoing are already like this)
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130 | session.log = log; |
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s2smanager: Update for new net.server API (s2s still doesn't work with libevent for other reasons)
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131 | session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(conn, tostring(t)); end |
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132 | incoming_s2s[session] = true; |
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133 | add_task(connect_timeout, function () |
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134 | if session.conn ~= conn or |
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135 | session.type == "s2sin" then |
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136 | return; -- Ok, we're connect[ed|ing] |
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137 | end |
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138 | -- Not connected, need to close session and clean up |
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139 | (session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", |
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140 | session.from_host or "(unknown)", session.to_host or "(unknown)"); |
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141 | session:close("connection-timeout"); |
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142 | end); |
148 | 143 | return session; |
144 | end | |
145 | ||
146 | function new_outgoing(from_host, to_host) | |
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147 | local host_session = { to_host = to_host, from_host = from_host, host = from_host, |
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148 | notopen = true, type = "s2sout_unauthed", direction = "outgoing" }; |
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149 | |
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150 | hosts[from_host].s2sout[to_host] = host_session; |
148 | 151 | |
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152 | local log; |
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153 | do |
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154 | local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$"); |
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155 | log = logger_init(conn_name); |
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156 | host_session.log = log; |
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157 | end |
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158 | |
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159 | -- Kick the connection attempting machine |
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160 | attempt_connection(host_session); |
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161 | |
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162 | if not host_session.sends2s then |
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163 | -- A sends2s which buffers data (until the stream is opened) |
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164 | -- note that data in this buffer will be sent before the stream is authed |
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165 | -- and will not be ack'd in any way, successful or otherwise |
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166 | local buffer; |
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167 | function host_session.sends2s(data) |
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168 | if not buffer then |
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169 | buffer = {}; |
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170 | host_session.send_buffer = buffer; |
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171 | end |
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172 | log("debug", "Buffering data on unconnected s2sout to %s", to_host); |
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173 | buffer[#buffer+1] = data; |
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174 | log("debug", "Buffered item %d: %s", #buffer, tostring(data)); |
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175 | end |
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176 | |
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177 | end |
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178 | |
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179 | return host_session; |
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180 | end |
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181 | |
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182 | |
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183 | function attempt_connection(host_session, err) |
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184 | local from_host, to_host = host_session.from_host, host_session.to_host; |
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185 | local connect_host, connect_port = idna_to_ascii(to_host), 5269; |
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186 | |
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187 | if not connect_host then |
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188 | return false; |
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189 | end |
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190 | |
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191 | if not err then -- This is our first attempt |
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192 | log("debug", "First attempt to connect to %s, starting with SRV lookup...", to_host); |
974 | 193 | host_session.connecting = true; |
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194 | local handle; |
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195 | handle = adns.lookup(function (answer) |
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196 | handle = nil; |
974 | 197 | host_session.connecting = nil; |
198 | if answer then | |
199 | log("debug", to_host.." has SRV records, handling..."); | |
200 | local srv_hosts = {}; | |
201 | host_session.srv_hosts = srv_hosts; | |
202 | for _, record in ipairs(answer) do | |
203 | t_insert(srv_hosts, record.srv); | |
204 | end | |
205 | t_sort(srv_hosts, compare_srv_priorities); | |
206 | ||
207 | local srv_choice = srv_hosts[1]; | |
208 | host_session.srv_choice = 1; | |
209 | if srv_choice then | |
210 | connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; | |
211 | log("debug", "Best record found, will connect to %s:%d", connect_host, connect_port); | |
212 | end | |
213 | else | |
214 | log("debug", to_host.." has no SRV records, falling back to A"); | |
337 | 215 | end |
974 | 216 | -- Try with SRV, or just the plain hostname if no SRV |
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217 | local ok, err = try_connect(host_session, connect_host, connect_port); |
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218 | if not ok then |
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219 | if not attempt_connection(host_session, err) then |
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220 | -- No more attempts will be made |
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221 | destroy_session(host_session); |
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222 | end |
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223 | end |
974 | 224 | end, "_xmpp-server._tcp."..connect_host..".", "SRV"); |
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225 | |
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226 | -- Set handler for DNS timeout |
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227 | add_task(dns_timeout, function () |
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228 | if handle then |
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229 | adns.cancel(handle, true); |
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230 | end |
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231 | end); |
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232 | |
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233 | log("debug", "DNS lookup for %s sent, waiting for response before we can connect", to_host); |
974 | 234 | return true; -- Attempt in progress |
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235 | elseif host_session.srv_hosts and #host_session.srv_hosts > host_session.srv_choice then -- Not our first attempt, and we also have SRV |
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236 | host_session.srv_choice = host_session.srv_choice + 1; |
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237 | local srv_choice = host_session.srv_hosts[host_session.srv_choice]; |
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238 | connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; |
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239 | host_session.log("info", "Connection failed (%s). Attempt #%d: This time to %s:%d", tostring(err), host_session.srv_choice, connect_host, connect_port); |
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240 | else |
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241 | host_session.log("info", "Out of connection options, can't connect to %s", tostring(host_session.to_host)); |
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242 | -- We're out of options |
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243 | return false; |
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244 | end |
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245 | |
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246 | if not (connect_host and connect_port) then |
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247 | -- Likely we couldn't resolve DNS |
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248 | log("warn", "Hmm, we're without a host (%s) and port (%s) to connect to for %s, giving up :(", tostring(connect_host), tostring(connect_port), tostring(to_host)); |
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249 | return false; |
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250 | end |
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251 | |
974 | 252 | return try_connect(host_session, connect_host, connect_port); |
253 | end | |
254 | ||
255 | function try_connect(host_session, connect_host, connect_port) | |
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256 | host_session.connecting = true; |
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257 | local handle; |
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258 | handle = adns.lookup(function (reply) |
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259 | handle = nil; |
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260 | host_session.connecting = nil; |
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261 | |
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262 | -- COMPAT: This is a compromise for all you CNAME-(ab)users :) |
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263 | if not (reply and reply[#reply] and reply[#reply].a) then |
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264 | local count = max_dns_depth; |
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265 | reply = dns.peek(connect_host, "CNAME", "IN"); |
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266 | while count > 0 and reply and reply[#reply] and not reply[#reply].a and reply[#reply].cname do |
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267 | log("debug", "Looking up %s (DNS depth is %d)", tostring(reply[#reply].cname), count); |
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268 | reply = dns.peek(reply[#reply].cname, "A", "IN") or dns.peek(reply[#reply].cname, "CNAME", "IN"); |
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269 | count = count - 1; |
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270 | end |
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271 | end |
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272 | -- end of CNAME resolving |
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273 | |
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274 | if reply and reply[#reply] and reply[#reply].a then |
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275 | log("debug", "DNS reply for %s gives us %s", connect_host, reply[#reply].a); |
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276 | return make_connect(host_session, reply[#reply].a, connect_port); |
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277 | else |
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278 | log("debug", "DNS lookup failed to get a response for %s", connect_host); |
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279 | if not attempt_connection(host_session, "name resolution failed") then -- Retry if we can |
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280 | log("debug", "No other records to try for %s - destroying", host_session.to_host); |
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281 | destroy_session(host_session); -- End of the line, we can't |
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282 | end |
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283 | end |
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284 | end, connect_host, "A", "IN"); |
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285 | |
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286 | -- Set handler for DNS timeout |
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287 | add_task(dns_timeout, function () |
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288 | if handle then |
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289 | adns.cancel(handle, true); |
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290 | end |
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291 | end); |
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292 | |
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293 | return true; |
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294 | end |
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295 | |
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296 | function make_connect(host_session, connect_host, connect_port) |
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297 | host_session.log("info", "Beginning new connection attempt to %s (%s:%d)", host_session.to_host, connect_host, connect_port); |
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298 | -- Ok, we're going to try to connect |
974 | 299 | |
300 | local from_host, to_host = host_session.from_host, host_session.to_host; | |
301 | ||
302 | local conn, handler = socket.tcp() | |
303 | ||
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304 | conn:settimeout(0); |
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305 | local success, err = conn:connect(connect_host, connect_port); |
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306 | if not success and err ~= "timeout" then |
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307 | log("warn", "s2s connect() to %s (%s:%d) failed: %s", host_session.to_host, connect_host, connect_port, err); |
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308 | return false, err; |
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309 | end |
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310 | |
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311 | local cl = connlisteners_get("xmppserver"); |
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312 | conn = wrapclient(conn, connect_host, connect_port, cl, cl.default_mode or 1, hosts[from_host].ssl_ctx, false ); |
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313 | host_session.conn = conn; |
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314 | |
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315 | -- Register this outgoing connection so that xmppserver_listener knows about it |
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316 | -- otherwise it will assume it is a new incoming connection |
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317 | cl.register_outgoing(conn, host_session); |
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318 | |
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319 | local w, log = conn.write, host_session.log; |
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320 | host_session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(conn, tostring(t)); end |
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321 | |
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322 | 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' xml:lang='en'>]], from_host, to_host)); |
974 | 323 | log("debug", "Connection attempt in progress..."); |
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324 | add_task(connect_timeout, function () |
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325 | if host_session.conn ~= conn or |
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326 | host_session.type == "s2sout" or |
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327 | host_session.connecting then |
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328 | return; -- Ok, we're connect[ed|ing] |
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329 | end |
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330 | -- Not connected, need to close session and clean up |
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331 | (host_session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", |
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332 | host_session.from_host or "(unknown)", host_session.to_host or "(unknown)"); |
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333 | host_session:close("connection-timeout"); |
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334 | end); |
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335 | return true; |
148 | 336 | end |
337 | ||
338 | function streamopened(session, attr) | |
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339 | local send = session.sends2s; |
148 | 340 | |
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341 | -- TODO: #29: SASL/TLS on s2s streams |
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342 | session.version = tonumber(attr.version) or 0; |
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343 | |
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344 | if session.secure == false then |
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345 | session.secure = true; |
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346 | end |
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347 | |
148 | 348 | if session.version >= 1.0 and not (attr.to and attr.from) then |
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349 | |
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350 | (session.log or log)("warn", "Remote of stream "..(session.from_host or "(unknown)").."->"..(session.to_host or "(unknown)") |
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351 | .." failed to specify to (%s) and/or from (%s) hostname as per RFC", tostring(attr.to), tostring(attr.from)); |
148 | 352 | end |
353 | ||
354 | if session.direction == "incoming" then | |
355 | -- Send a reply stream header | |
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356 | session.to_host = attr.to and nameprep(attr.to); |
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357 | session.from_host = attr.from and nameprep(attr.from); |
148 | 358 | |
359 | session.streamid = uuid_gen(); | |
360
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360 | (session.log or log)("debug", "incoming s2s received <stream:stream>"); |
148 | 361 | send("<?xml version='1.0'?>"); |
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362 | send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', |
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363 | ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host, version=(session.version > 0 and "1.0" or nil) }):top_tag()); |
331 | 364 | if session.to_host and not hosts[session.to_host] then |
365 | -- Attempting to connect to a host we don't serve | |
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366 | session:close({ condition = "host-unknown"; text = "This host does not serve "..session.to_host }); |
331 | 367 | return; |
368 | end | |
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369 | if session.version >= 1.0 then |
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370 | local features = st.stanza("stream:features"); |
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371 | |
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372 | if session.to_host then |
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373 | hosts[session.to_host].events.fire_event("s2s-stream-features", { session = session, features = features }); |
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374 | else |
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375 | (session.log or log)("warn", "No 'to' on stream header from %s means we can't offer any features", session.from_host or "unknown host"); |
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376 | end |
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377 | |
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378 | log("debug", "Sending stream features: %s", tostring(features)); |
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379 | send(features); |
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380 | end |
148 | 381 | elseif session.direction == "outgoing" then |
382 | -- If we are just using the connection for verifying dialback keys, we won't try and auth it | |
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383 | if not attr.id then error("stream response did not give us a streamid!!!"); end |
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384 | session.streamid = attr.id; |
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385 | |
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386 | -- Send unauthed buffer |
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387 | -- (stanzas which are fine to send before dialback) |
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388 | -- Note that this is *not* the stanza queue (which |
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389 | -- we can only send if auth succeeds) :) |
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390 | local send_buffer = session.send_buffer; |
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391 | if send_buffer and #send_buffer > 0 then |
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392 | log("debug", "Sending s2s send_buffer now..."); |
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393 | for i, data in ipairs(send_buffer) do |
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394 | session.sends2s(tostring(data)); |
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395 | send_buffer[i] = nil; |
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396 | end |
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397 | end |
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398 | session.send_buffer = nil; |
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399 | |
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400 | -- If server is pre-1.0, don't wait for features, just do dialback |
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401 | if session.version < 1.0 then |
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402 | if not session.dialback_verifying then |
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403 | log("debug", "Initiating dialback..."); |
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404 | initiate_dialback(session); |
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405 | else |
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406 | mark_connected(session); |
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407 | end |
148 | 408 | end |
409 | end | |
259 | 410 | |
148 | 411 | session.notopen = nil; |
412 | end | |
413 | ||
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414 | function streamclosed(session) |
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415 | (session.log or log)("debug", "</stream:stream>"); |
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416 | if session.sends2s then |
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417 | session.sends2s("</stream:stream>"); |
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418 | end |
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419 | session.notopen = true; |
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420 | end |
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421 | |
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422 | function initiate_dialback(session) |
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423 | -- generate dialback key |
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424 | session.dialback_key = generate_dialback(session.streamid, session.to_host, session.from_host); |
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425 | 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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426 | session.log("info", "sent dialback key on outgoing s2s stream"); |
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427 | end |
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428 | |
148 | 429 | function generate_dialback(id, to, from) |
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430 | return sha256_hash(id..to..from..dialback_secret, true); |
148 | 431 | end |
432 | ||
433 | function verify_dialback(id, to, from, key) | |
434 | return key == generate_dialback(id, to, from); | |
435 | end | |
436 | ||
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437 | function make_authenticated(session, host) |
148 | 438 | if session.type == "s2sout_unauthed" then |
439 | session.type = "s2sout"; | |
440 | elseif session.type == "s2sin_unauthed" then | |
441 | session.type = "s2sin"; | |
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442 | if host then |
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443 | session.hosts[host].authed = true; |
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444 | end |
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445 | elseif session.type == "s2sin" and host then |
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446 | session.hosts[host].authed = true; |
148 | 447 | else |
448 | return false; | |
449 | end | |
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450 | session.log("debug", "connection %s->%s is now authenticated", session.from_host or "(unknown)", session.to_host or "(unknown)"); |
148 | 451 | |
452 | mark_connected(session); | |
453 | ||
454 | return true; | |
455 | end | |
456 | ||
1891 | 457 | -- Stream is authorised, and ready for normal stanzas |
148 | 458 | function mark_connected(session) |
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459 | local sendq, send = session.sendq, session.sends2s; |
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460 | |
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461 | local from, to = session.from_host, session.to_host; |
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462 | |
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463 | session.log("info", session.direction.." s2s connection "..from.."->"..to.." complete"); |
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464 | |
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465 | local send_to_host = send_to_host; |
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466 | function session.send(data) send_to_host(to, from, data); end |
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467 | |
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468 | |
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469 | if session.direction == "outgoing" then |
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470 | if sendq then |
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471 | session.log("debug", "sending "..#sendq.." queued stanzas across new outgoing connection to "..session.to_host); |
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472 | for i, data in ipairs(sendq) do |
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473 | send(data[1]); |
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474 | sendq[i] = nil; |
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475 | end |
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476 | session.sendq = nil; |
148 | 477 | end |
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478 | |
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479 | session.srv_hosts = nil; |
148 | 480 | end |
481 | end | |
482 | ||
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483 | function destroy_session(session) |
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484 | (session.log or log)("info", "Destroying "..tostring(session.direction).." session "..tostring(session.from_host).."->"..tostring(session.to_host)); |
331 | 485 | |
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486 | if session.direction == "outgoing" then |
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487 | hosts[session.from_host].s2sout[session.to_host] = nil; |
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488 | bounce_sendq(session); |
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489 | elseif session.direction == "incoming" then |
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490 | incoming_s2s[session] = nil; |
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491 | end |
331 | 492 | |
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493 | for k in pairs(session) do |
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494 | if k ~= "trace" then |
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495 | session[k] = nil; |
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496 | end |
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497 | end |
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498 | end |
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499 | |
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500 | return _M; |