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core/s2smanager.lua @ 2090:7810648ea26d
s2smanager: Fail outgoing s2s connection if hostname does not pass idna_to_ascii(), thanks Flo + waqas
| author | Matthew Wild <mwild1@gmail.com> |
|---|---|
| date | Fri, 20 Nov 2009 15:07:39 +0000 |
| parent | 2089:fdd7280c4621 |
| child | 2100:c8005be640b1 |
| child | 2127:be3c906f4770 |
| child | 2165:529af807ba1a |
| rev | line source |
|---|---|
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1 -- Prosody IM |
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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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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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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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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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s2smanager: Timeout unauthed s2s connections
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43 local connect_timeout = config.get("*", "core", "s2s_timeout") or 60; |
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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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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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83 if host then |
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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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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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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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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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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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130 session.log = log; |
| 343 | 131 session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(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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core.s2smanager: Don't recurse CNAMEs infinitely :)
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changeset
|
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) |
|
1075
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s2smanager: Miscellaneous logging improvements, changing levels, improving messages and using session loggers where possible
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diff
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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); |
|
434
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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 | |
|
434
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diff
changeset
|
304 conn:settimeout(0); |
|
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diff
changeset
|
305 local success, err = conn:connect(connect_host, connect_port); |
|
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diff
changeset
|
306 if not success and err ~= "timeout" then |
|
1468
83b297a412a2
s2smanager: Log the hostname and address when s2s connection fails instantly
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1450
diff
changeset
|
307 log("warn", "s2s connect() to %s (%s:%d) failed: %s", host_session.to_host, connect_host, connect_port, err); |
|
1492
aaeccebad0f3
s2smanager: Fix to correctly bounce stanzas if first connection attempt fails instantly
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diff
changeset
|
308 return false, err; |
|
434
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diff
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|
309 end |
|
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diff
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|
310 |
|
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parents:
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diff
changeset
|
311 local cl = connlisteners_get("xmppserver"); |
|
739
1def06cd9311
Port to new server.lua, quite some changes, but I believe everything to be working
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parents:
631
diff
changeset
|
312 conn = wrapclient(conn, connect_host, connect_port, cl, cl.default_mode or 1, hosts[from_host].ssl_ctx, false ); |
|
434
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diff
changeset
|
313 host_session.conn = conn; |
|
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diff
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|
314 |
|
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diff
changeset
|
315 -- Register this outgoing connection so that xmppserver_listener knows about it |
|
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diff
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|
316 -- otherwise it will assume it is a new incoming connection |
|
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diff
changeset
|
317 cl.register_outgoing(conn, host_session); |
|
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diff
changeset
|
318 |
|
2019
c712ea57b877
s2smanager: Use session-specific logger to log outgoing data on outgoing s2s connections
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parents:
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diff
changeset
|
319 local w, log = conn.write, host_session.log; |
|
434
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diff
changeset
|
320 host_session.sends2s = function (t) log("debug", "sending: %s", tostring(t)); w(tostring(t)); end |
|
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parents:
360
diff
changeset
|
321 |
|
1450
c1c7b27b983b
Send xml:lang in stream headers, fixes #78
Matthew Wild <mwild1@gmail.com>
parents:
1345
diff
changeset
|
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..."); |
|
1796
5f7b2f940816
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parents:
1793
diff
changeset
|
324 add_task(connect_timeout, function () |
|
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parents:
1793
diff
changeset
|
325 if host_session.conn ~= conn or |
|
5f7b2f940816
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1793
diff
changeset
|
326 host_session.type == "s2sout" or |
|
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diff
changeset
|
327 host_session.connecting then |
|
5f7b2f940816
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diff
changeset
|
328 return; -- Ok, we're connect[ed|ing] |
|
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diff
changeset
|
329 end |
|
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diff
changeset
|
330 -- Not connected, need to close session and clean up |
|
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diff
changeset
|
331 (host_session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", |
|
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parents:
1793
diff
changeset
|
332 host_session.from_host or "(unknown)", host_session.to_host or "(unknown)"); |
|
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parents:
1793
diff
changeset
|
333 host_session:close("connection-timeout"); |
|
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parents:
1793
diff
changeset
|
334 end); |
|
434
0d7ba3742f7a
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parents:
360
diff
changeset
|
335 return true; |
| 148 | 336 end |
| 337 | |
| 338 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
|
339 local send = session.sends2s; |
| 148 | 340 |
|
544
efde848869c5
Don't send stream:features to incoming s2s connections
Matthew Wild <mwild1@gmail.com>
parents:
543
diff
changeset
|
341 -- TODO: #29: SASL/TLS on s2s streams |
|
1894
53f34ba6f6d6
Minor changes; outgoing TLS works.
Paul Aurich <paul@darkrain42.org>
parents:
1891
diff
changeset
|
342 session.version = tonumber(attr.version) or 0; |
|
544
efde848869c5
Don't send stream:features to incoming s2s connections
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parents:
543
diff
changeset
|
343 |
|
1909
84027581c995
s2smanager: Mark session as secure if it was negotiating TLS and opens a new stream
Matthew Wild <mwild1@gmail.com>
parents:
1895
diff
changeset
|
344 if session.secure == false then |
|
84027581c995
s2smanager: Mark session as secure if it was negotiating TLS and opens a new stream
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parents:
1895
diff
changeset
|
345 session.secure = true; |
|
84027581c995
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parents:
1895
diff
changeset
|
346 end |
|
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parents:
1895
diff
changeset
|
347 |
| 148 | 348 if session.version >= 1.0 and not (attr.to and attr.from) then |
|
1928
d11f07ca0b75
s2smanager: Improve log message on missing to/from in stream header
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parents:
1909
diff
changeset
|
349 |
|
d11f07ca0b75
s2smanager: Improve log message on missing to/from in stream header
Matthew Wild <mwild1@gmail.com>
parents:
1909
diff
changeset
|
350 (session.log or log)("warn", "Remote of stream "..(session.from_host or "(unknown)").."->"..(session.to_host or "(unknown)") |
|
d11f07ca0b75
s2smanager: Improve log message on missing to/from in stream header
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parents:
1909
diff
changeset
|
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 | |
|
938
663f75dd7b42
Fixed: Some nil access bugs
Waqas Hussain <waqas20@gmail.com>
parents:
931
diff
changeset
|
356 session.to_host = attr.to and nameprep(attr.to); |
|
663f75dd7b42
Fixed: Some nil access bugs
Waqas Hussain <waqas20@gmail.com>
parents:
931
diff
changeset
|
357 session.from_host = attr.from and nameprep(attr.from); |
| 148 | 358 |
| 359 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
|
360 (session.log or log)("debug", "incoming s2s received <stream:stream>"); |
| 148 | 361 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
|
362 send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', |
|
1930
92b78dd346ca
s2smanager: Don't send version=1.0 in reply to incoming stream tag if they didn't advertise 1.0 (makes happy some old ejabberd versions)
Matthew Wild <mwild1@gmail.com>
parents:
1928
diff
changeset
|
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 | |
|
434
0d7ba3742f7a
(Basic) IDNA and SRV fallback support
Matthew Wild <mwild1@gmail.com>
parents:
360
diff
changeset
|
366 session:close({ condition = "host-unknown"; text = "This host does not serve "..session.to_host }); |
| 331 | 367 return; |
| 368 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
|
369 if session.version >= 1.0 then |
|
1889
e875833ae08e
s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
Matthew Wild <mwild1@gmail.com>
parents:
1888
diff
changeset
|
370 local features = st.stanza("stream:features"); |
|
1936
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
371 |
|
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
372 if session.to_host then |
|
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
373 hosts[session.to_host].events.fire_event("s2s-stream-features", { session = session, features = features }); |
|
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
374 else |
|
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
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"); |
|
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
376 end |
|
1889
e875833ae08e
s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
Matthew Wild <mwild1@gmail.com>
parents:
1888
diff
changeset
|
377 |
|
e875833ae08e
s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
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1888
diff
changeset
|
378 log("debug", "Sending stream features: %s", tostring(features)); |
|
e875833ae08e
s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
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parents:
1888
diff
changeset
|
379 send(features); |
|
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
|
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 | |
|
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
|
383 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
|
384 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
|
385 |
|
1007
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
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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e3db909065f2
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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) |
|
448
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diff
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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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Log how many queued stanzas we send
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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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s2smanager: Remove srv_hosts from session when connected, this fixes attempting to reconnect s2s sessions when they are closed during shutdown
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479 session.srv_hosts = nil; |
| 148 | 480 end |
| 481 end | |
| 482 | |
|
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other half of previous commit
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483 function destroy_session(session) |
|
169
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Little tweak for more useful logging of closed s2s sessions
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diff
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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 |
|
260
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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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Just committing this warning, because I want to know if the problem really affects us
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500 return _M; |
