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core/s2smanager.lua @ 3683:c2158221e2e6
util.timer: Activate higher timer precision.
author | Waqas Hussain <waqas20@gmail.com> |
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date | Thu, 02 Dec 2010 22:41:26 +0500 |
parent | 3663:300ae72fd692 |
child | 3733:26571a99f6e6 |
rev | line source |
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Remove version number from copyright headers
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1 -- Prosody IM |
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Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild |
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
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Insert copyright/license headers
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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 |
1204
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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; |
255
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Fix for detecting when we are routing a stanza to ourself (I'm sure this has something to do with you, waqas...)
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18 local get_traceback = debug.traceback; |
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19 local tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber, setmetatable |
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20 = tostring, pairs, ipairs, getmetatable, newproxy, error, tonumber, setmetatable; |
148 | 21 |
434
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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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s2smanager: Add filters for outgoing bytes and stanzas
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24 local initialize_filters = require "util.filters".initialize; |
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Port to new server.lua, quite some changes, but I believe everything to be working
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25 local wrapclient = require "net.server".wrapclient; |
148 | 26 local modulemanager = require "core.modulemanager"; |
244
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27 local st = require "stanza"; |
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28 local stanza = st.stanza; |
931
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Fixed: s2smanager: Apply nameprep on hostnames passed in stream tag (part of issue #57)
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29 local nameprep = require "util.encodings".stringprep.nameprep; |
3651 | 30 local cert_verify_identity = require "util.certverification".verify_identity; |
148 | 31 |
3436
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s2smanager: Remove dependency on eventmanager
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32 local fire_event = prosody.events.fire_event; |
148 | 33 local uuid_gen = require "util.uuid".generate; |
34 | |
35 local logger_init = require "util.logger".init; | |
36 | |
37 local log = logger_init("s2smanager"); | |
38 | |
448
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Switched from md5 to sha256 for dialback key generation
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39 local sha256_hash = require "util.hashes".sha256; |
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"; |
1962
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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; |
3329
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s2smanager: Lower default DNS timeout to 15s (it's now a per-DNS-server timeout, rather than total timeout), use net.dns's new timeout system, and remove our custom timeout handlers
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44 local dns_timeout = config.get("*", "core", "dns_timeout") or 15; |
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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 dns.settimeout(dns_timeout); |
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48 |
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s2smanager: Fire s2s{in,out}-established when new s2s connections are ready
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49 local prosody = _G.prosody; |
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Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
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50 incoming_s2s = {}; |
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51 prosody.incoming_s2s = incoming_s2s; |
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52 local incoming_s2s = incoming_s2s; |
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53 |
148 | 54 module "s2smanager" |
55 | |
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s2smanager: Fix for the logic SRV record priority comparison (thanks darkrain)
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56 function compare_srv_priorities(a,b) |
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57 return a.priority < b.priority or (a.priority == b.priority and a.weight > b.weight); |
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58 end |
337 | 59 |
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s2smanager: Only bounce real stanzas on s2s failure, not dialback and friends (thanks elghinn)
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60 local bouncy_stanzas = { message = true, presence = true, iq = true }; |
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s2smanager: Have both destroy_session and bounce_sendq accept a reason string to include in bounced stanzas
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61 local function bounce_sendq(session, reason) |
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62 local sendq = session.sendq; |
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63 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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64 session.log("info", "sending error replies for "..#sendq.." queued stanzas because of failed outgoing connection to "..tostring(session.to_host)); |
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65 local dummy = { |
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66 type = "s2sin"; |
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67 send = function(s) |
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68 (session.log or log)("error", "Replying to to an s2s error reply, please report this! Traceback: %s", get_traceback()); |
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69 end; |
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70 dummy = true; |
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71 }; |
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72 for i, data in ipairs(sendq) do |
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73 local reply = data[2]; |
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74 local xmlns = reply.attr.xmlns; |
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s2smanager: brackets, just to be sure :)
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75 if not(xmlns) and bouncy_stanzas[reply.name] then |
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76 reply.attr.type = "error"; |
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77 reply:tag("error", {type = "cancel"}) |
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78 :tag("remote-server-not-found", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):up(); |
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79 if reason then |
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80 reply:tag("text", {xmlns = "urn:ietf:params:xml:ns:xmpp-stanzas"}):text("Connection failed: "..reason):up(); |
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81 end |
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82 core_process_stanza(dummy, reply); |
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83 end |
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84 sendq[i] = nil; |
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85 end |
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86 session.sendq = nil; |
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87 end |
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88 end |
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89 |
148 | 90 function send_to_host(from_host, to_host, data) |
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91 if not hosts[from_host] then |
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92 log("warn", "Attempt to send stanza from %s - a host we don't serve", from_host); |
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93 return false; |
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94 end |
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95 local host = hosts[from_host].s2sout[to_host]; |
190
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96 if host then |
241
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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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97 -- We have a connection to this host already |
2949
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stanza_router, s2smanager, modulemanager: Fix for handling of the default namespace on stanzas, causing sometimes jabber:client to be sent over s2s, and accepted
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98 if host.type == "s2sout_unauthed" and (data.name ~= "db:verify" or not host.dialback_key) then |
558
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Fix for s2s with jabberd2 (we weren't routing db:verify's over s2sout_unauthed)
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99 (host.log or log)("debug", "trying to send over unauthed s2sout to "..to_host); |
241
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100 |
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101 -- Queue stanza until we are able to send it |
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102 if host.sendq then t_insert(host.sendq, {tostring(data), st.reply(data)}); |
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103 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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104 host.log("debug", "stanza [%s] queued ", data.name); |
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105 elseif host.type == "local" or host.type == "component" then |
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106 log("error", "Trying to send a stanza to ourselves??") |
256 | 107 log("error", "Traceback: %s", get_traceback()); |
258
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Yep, s2s definitely works now. This is just a small fix for logging...
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108 log("error", "Stanza: %s", tostring(data)); |
190
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109 else |
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110 (host.log or log)("debug", "going to send stanza to "..to_host.." from "..from_host); |
225
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Just committing this warning, because I want to know if the problem really affects us
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111 -- FIXME |
260
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112 if host.from_host ~= from_host then |
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113 log("error", "WARNING! This might, possibly, be a bug, but it might not..."); |
331 | 114 log("error", "We are going to send from %s instead of %s", tostring(host.from_host), tostring(from_host)); |
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115 end |
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116 host.sends2s(data); |
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117 host.log("debug", "stanza sent over "..host.type); |
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118 end |
148 | 119 else |
120 log("debug", "opening a new outgoing connection for this stanza"); | |
121 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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122 |
148 | 123 -- Store in buffer |
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124 host_session.sendq = { {tostring(data), st.reply(data)} }; |
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125 log("debug", "stanza [%s] queued until connection complete", tostring(data.name)); |
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126 if (not host_session.connecting) and (not host_session.conn) then |
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127 log("warn", "Connection to %s failed already, destroying session...", to_host); |
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128 destroy_session(host_session); |
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129 end |
148 | 130 end |
131 end | |
132 | |
133 local open_sessions = 0; | |
134 | |
135 function new_incoming(conn) | |
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136 local session = { conn = conn, type = "s2sin_unauthed", direction = "incoming", hosts = {} }; |
148 | 137 if true then |
138 session.trace = newproxy(true); | |
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139 getmetatable(session.trace).__gc = function () open_sessions = open_sessions - 1; end; |
148 | 140 end |
141 open_sessions = open_sessions + 1; | |
343 | 142 local w, log = conn.write, logger_init("s2sin"..tostring(conn):match("[a-f0-9]+$")); |
1686
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143 session.log = log; |
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144 local filter = initialize_filters(session); |
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145 session.sends2s = function (t) |
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146 log("debug", "sending: %s", t.top_tag and t:top_tag() or t:match("^([^>]*>?)")); |
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147 if t.name then |
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148 t = filter("stanzas/out", t); |
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149 end |
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150 if t then |
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151 t = filter("bytes/out", tostring(t)); |
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152 if t then |
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153 return w(conn, t); |
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154 end |
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155 end |
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156 end |
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157 incoming_s2s[session] = true; |
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158 add_task(connect_timeout, function () |
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159 if session.conn ~= conn or |
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160 session.type == "s2sin" then |
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161 return; -- Ok, we're connect[ed|ing] |
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162 end |
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163 -- Not connected, need to close session and clean up |
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164 (session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", |
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165 session.from_host or "(unknown)", session.to_host or "(unknown)"); |
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166 session:close("connection-timeout"); |
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167 end); |
148 | 168 return session; |
169 end | |
170 | |
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171 function new_outgoing(from_host, to_host, connect) |
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172 local host_session = { to_host = to_host, from_host = from_host, host = from_host, |
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173 notopen = true, type = "s2sout_unauthed", direction = "outgoing", |
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174 open_stream = session_open_stream }; |
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175 |
260
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176 hosts[from_host].s2sout[to_host] = host_session; |
148 | 177 |
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178 local log; |
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179 do |
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180 local conn_name = "s2sout"..tostring(host_session):match("[a-f0-9]*$"); |
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181 log = logger_init(conn_name); |
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182 host_session.log = log; |
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183 end |
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184 |
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185 initialize_filters(host_session); |
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186 |
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187 if connect ~= false then |
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188 -- Kick the connection attempting machine into life |
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189 attempt_connection(host_session); |
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190 end |
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191 |
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192 if not host_session.sends2s then |
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193 -- A sends2s which buffers data (until the stream is opened) |
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194 -- note that data in this buffer will be sent before the stream is authed |
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195 -- and will not be ack'd in any way, successful or otherwise |
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196 local buffer; |
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197 function host_session.sends2s(data) |
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198 if not buffer then |
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199 buffer = {}; |
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200 host_session.send_buffer = buffer; |
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201 end |
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202 log("debug", "Buffering data on unconnected s2sout to %s", to_host); |
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203 buffer[#buffer+1] = data; |
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204 log("debug", "Buffered item %d: %s", #buffer, tostring(data)); |
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205 end |
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206 end |
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207 |
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208 return host_session; |
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209 end |
353
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210 |
434
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211 |
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212 function attempt_connection(host_session, err) |
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213 local from_host, to_host = host_session.from_host, host_session.to_host; |
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214 local connect_host, connect_port = to_host and idna_to_ascii(to_host), 5269; |
434
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215 |
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216 if not connect_host then |
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217 return false; |
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218 end |
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219 |
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220 if not err then -- This is our first attempt |
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221 log("debug", "First attempt to connect to %s, starting with SRV lookup...", to_host); |
974 | 222 host_session.connecting = true; |
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223 local handle; |
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224 handle = adns.lookup(function (answer) |
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225 handle = nil; |
974 | 226 host_session.connecting = nil; |
227 if answer then | |
228 log("debug", to_host.." has SRV records, handling..."); | |
229 local srv_hosts = {}; | |
230 host_session.srv_hosts = srv_hosts; | |
231 for _, record in ipairs(answer) do | |
232 t_insert(srv_hosts, record.srv); | |
233 end | |
234 t_sort(srv_hosts, compare_srv_priorities); | |
235 | |
236 local srv_choice = srv_hosts[1]; | |
237 host_session.srv_choice = 1; | |
238 if srv_choice then | |
239 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; | |
240 log("debug", "Best record found, will connect to %s:%d", connect_host, connect_port); | |
241 end | |
242 else | |
243 log("debug", to_host.." has no SRV records, falling back to A"); | |
337 | 244 end |
974 | 245 -- Try with SRV, or just the plain hostname if no SRV |
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246 local ok, err = try_connect(host_session, connect_host, connect_port); |
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247 if not ok then |
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248 if not attempt_connection(host_session, err) then |
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249 -- No more attempts will be made |
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250 destroy_session(host_session, err); |
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251 end |
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252 end |
974 | 253 end, "_xmpp-server._tcp."..connect_host..".", "SRV"); |
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254 |
974 | 255 return true; -- Attempt in progress |
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256 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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257 host_session.srv_choice = host_session.srv_choice + 1; |
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258 local srv_choice = host_session.srv_hosts[host_session.srv_choice]; |
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259 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port; |
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|
260 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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261 else |
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|
262 host_session.log("info", "Out of connection options, can't connect to %s", tostring(host_session.to_host)); |
434
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|
263 -- We're out of options |
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264 return false; |
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|
265 end |
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266 |
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|
267 if not (connect_host and connect_port) then |
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268 -- Likely we couldn't resolve DNS |
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269 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)); |
960
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270 return false; |
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271 end |
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272 |
974 | 273 return try_connect(host_session, connect_host, connect_port); |
274 end | |
275 | |
276 function try_connect(host_session, connect_host, connect_port) | |
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277 host_session.connecting = true; |
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278 local handle; |
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279 handle = adns.lookup(function (reply) |
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280 handle = nil; |
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281 host_session.connecting = nil; |
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282 |
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283 -- COMPAT: This is a compromise for all you CNAME-(ab)users :) |
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284 if not (reply and reply[#reply] and reply[#reply].a) then |
1805
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|
285 local count = max_dns_depth; |
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286 reply = dns.peek(connect_host, "CNAME", "IN"); |
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287 while count > 0 and reply and reply[#reply] and not reply[#reply].a and reply[#reply].cname do |
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288 log("debug", "Looking up %s (DNS depth is %d)", tostring(reply[#reply].cname), count); |
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289 reply = dns.peek(reply[#reply].cname, "A", "IN") or dns.peek(reply[#reply].cname, "CNAME", "IN"); |
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290 count = count - 1; |
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291 end |
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292 end |
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293 -- end of CNAME resolving |
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294 |
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295 if reply and reply[#reply] and reply[#reply].a then |
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296 log("debug", "DNS reply for %s gives us %s", connect_host, reply[#reply].a); |
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297 return make_connect(host_session, reply[#reply].a, connect_port); |
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298 else |
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299 log("debug", "DNS lookup failed to get a response for %s", connect_host); |
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300 if not attempt_connection(host_session, "name resolution failed") then -- Retry if we can |
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301 log("debug", "No other records to try for %s - destroying", host_session.to_host); |
2783
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302 destroy_session(host_session, "DNS resolution failed"); -- End of the line, we can't |
1791
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303 end |
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304 end |
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305 end, connect_host, "A", "IN"); |
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306 |
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307 return true; |
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|
308 end |
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|
309 |
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|
310 function make_connect(host_session, connect_host, connect_port) |
2813
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diff
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311 (host_session.log or log)("info", "Beginning new connection attempt to %s (%s:%d)", host_session.to_host, connect_host, connect_port); |
434
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diff
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|
312 -- Ok, we're going to try to connect |
974 | 313 |
314 local from_host, to_host = host_session.from_host, host_session.to_host; | |
315 | |
316 local conn, handler = socket.tcp() | |
2712
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317 |
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318 if not conn then |
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319 log("warn", "Failed to create outgoing connection, system error: %s", handler); |
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320 return false, handler; |
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|
321 end |
974 | 322 |
434
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diff
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|
323 conn:settimeout(0); |
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diff
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324 local success, err = conn:connect(connect_host, connect_port); |
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diff
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|
325 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
|
326 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
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|
327 return false, err; |
434
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|
328 end |
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diff
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|
329 |
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diff
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|
330 local cl = connlisteners_get("xmppserver"); |
2545
99700e601d16
s2smanager: Update for new server SSL API (don't pass a sslctx)
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2539
diff
changeset
|
331 conn = wrapclient(conn, connect_host, connect_port, cl, cl.default_mode or 1 ); |
434
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diff
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|
332 host_session.conn = conn; |
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diff
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|
333 |
3146
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2951
diff
changeset
|
334 local filter = initialize_filters(host_session); |
2019
c712ea57b877
s2smanager: Use session-specific logger to log outgoing data on outgoing s2s connections
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diff
changeset
|
335 local w, log = conn.write, host_session.log; |
3146
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diff
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|
336 host_session.sends2s = function (t) |
3265
9374f84c6677
s2smanager: Fix logging for outgoing sessions to also log pre-filtered data
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3224
diff
changeset
|
337 log("debug", "sending: %s", (t.top_tag and t:top_tag()) or t:match("^[^>]*>?")); |
3146
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|
338 if t.name then |
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|
339 t = filter("stanzas/out", t); |
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diff
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|
340 end |
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diff
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|
341 if t then |
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diff
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|
342 t = filter("bytes/out", tostring(t)); |
aaaea4cdbf10
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diff
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|
343 if t then |
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diff
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|
344 return w(conn, tostring(t)); |
aaaea4cdbf10
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diff
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|
345 end |
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diff
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|
346 end |
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diff
changeset
|
347 end |
434
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diff
changeset
|
348 |
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diff
changeset
|
349 -- Register this outgoing connection so that xmppserver_listener knows about it |
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diff
changeset
|
350 -- otherwise it will assume it is a new incoming connection |
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diff
changeset
|
351 cl.register_outgoing(conn, host_session); |
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diff
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|
352 |
2469
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2426
diff
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|
353 host_session:open_stream(from_host, to_host); |
2426
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diff
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|
354 |
974 | 355 log("debug", "Connection attempt in progress..."); |
1796
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diff
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|
356 add_task(connect_timeout, function () |
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diff
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|
357 if host_session.conn ~= conn or |
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diff
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|
358 host_session.type == "s2sout" or |
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|
359 host_session.connecting then |
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360 return; -- Ok, we're connect[ed|ing] |
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|
361 end |
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|
362 -- Not connected, need to close session and clean up |
2419
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s2smanager: Trim trailing whitespace
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diff
changeset
|
363 (host_session.log or log)("warn", "Destroying incomplete session %s->%s due to inactivity", |
1796
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diff
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|
364 host_session.from_host or "(unknown)", host_session.to_host or "(unknown)"); |
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|
365 host_session:close("connection-timeout"); |
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|
366 end); |
434
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|
367 return true; |
148 | 368 end |
369 | |
2426
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|
370 function session_open_stream(session, from, to) |
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|
371 session.sends2s(st.stanza("stream:stream", { |
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changeset
|
372 xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', |
4cef9808662a
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diff
changeset
|
373 ["xmlns:stream"]='http://etherx.jabber.org/streams', |
4cef9808662a
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2422
diff
changeset
|
374 from=from, to=to, version='1.0', ["xml:lang"]='en'}):top_tag()); |
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diff
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|
375 end |
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diff
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|
376 |
3651 | 377 local function check_cert_status(session) |
378 local conn = session.conn:socket() | |
3663
300ae72fd692
s2smanager: Check for getpeercertificate availability (for old LuaSecs)
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diff
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|
379 local cert |
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diff
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|
380 if conn.getpeercertificate then |
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diff
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|
381 cert = conn:getpeercertificate() |
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diff
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|
382 end |
3651 | 383 |
384 if cert then | |
385 local chain_valid, err = conn:getpeerchainvalid() | |
386 if not chain_valid then | |
387 session.cert_chain_status = "invalid"; | |
388 (session.log or log)("debug", "certificate chain validation result: %s", err); | |
389 else | |
390 session.cert_chain_status = "valid"; | |
391 | |
392 local host = session.direction == "incoming" and session.from_host or session.to_host | |
393 | |
394 -- We'll go ahead and verify the asserted identity if the | |
395 -- connecting server specified one. | |
396 if host then | |
397 if cert_verify_identity(host, "xmpp-server", cert) then | |
398 session.cert_identity_status = "valid" | |
399 else | |
400 session.cert_identity_status = "invalid" | |
401 end | |
402 end | |
403 end | |
404 end | |
405 end | |
406 | |
148 | 407 function streamopened(session, attr) |
186
bfa8a30ea488
sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
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179
diff
changeset
|
408 local send = session.sends2s; |
148 | 409 |
544
efde848869c5
Don't send stream:features to incoming s2s connections
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parents:
543
diff
changeset
|
410 -- TODO: #29: SASL/TLS on s2s streams |
1894
53f34ba6f6d6
Minor changes; outgoing TLS works.
Paul Aurich <paul@darkrain42.org>
parents:
1891
diff
changeset
|
411 session.version = tonumber(attr.version) or 0; |
544
efde848869c5
Don't send stream:features to incoming s2s connections
Matthew Wild <mwild1@gmail.com>
parents:
543
diff
changeset
|
412 |
3651 | 413 -- TODO: Rename session.secure to session.encrypted |
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
|
414 if session.secure == false then |
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
|
415 session.secure = true; |
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
|
416 end |
3651 | 417 |
148 | 418 if session.direction == "incoming" then |
419 -- Send a reply stream header | |
938
663f75dd7b42
Fixed: Some nil access bugs
Waqas Hussain <waqas20@gmail.com>
parents:
931
diff
changeset
|
420 session.to_host = attr.to and nameprep(attr.to); |
663f75dd7b42
Fixed: Some nil access bugs
Waqas Hussain <waqas20@gmail.com>
parents:
931
diff
changeset
|
421 session.from_host = attr.from and nameprep(attr.from); |
148 | 422 |
423 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
|
424 (session.log or log)("debug", "incoming s2s received <stream:stream>"); |
3383
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
425 if session.to_host then |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
426 if not hosts[session.to_host] then |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
427 -- Attempting to connect to a host we don't serve |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
428 session:close({ |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
429 condition = "host-unknown"; |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
430 text = "This host does not serve "..session.to_host |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
431 }); |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
432 return; |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
433 elseif hosts[session.to_host].disallow_s2s then |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
434 -- Attempting to connect to a host that disallows s2s |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
435 session:close({ |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
436 condition = "policy-violation"; |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
437 text = "Server-to-server communication is not allowed to this host"; |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
438 }); |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
439 return; |
c7acddf80583
s2smanager: Handle disallow_s2s for incoming streams as well as outgoing
Matthew Wild <mwild1@gmail.com>
parents:
3329
diff
changeset
|
440 end |
331 | 441 end |
3651 | 442 |
443 if session.secure and not session.cert_chain_status then check_cert_status(session); end | |
444 | |
2780
f8232abcab2a
s2smanager: Send reply stream header only after checking we serve this host (sorry darkrain... :) )
Matthew Wild <mwild1@gmail.com>
parents:
2760
diff
changeset
|
445 send("<?xml version='1.0'?>"); |
2419
00d985639a06
s2smanager: Trim trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents:
2382
diff
changeset
|
446 send(stanza("stream:stream", { xmlns='jabber:server', ["xmlns:db"]='jabber:server:dialback', |
2787
1067a454a068
s2smanager: Stamp a 'to' on the reply stream:stream. This makes prosody happy.
Paul Aurich <paul@darkrain42.org>
parents:
2783
diff
changeset
|
447 ["xmlns:stream"]='http://etherx.jabber.org/streams', id=session.streamid, from=session.to_host, to=session.from_host, version=(session.version > 0 and "1.0" or nil) }):top_tag()); |
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
|
448 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
|
449 local features = st.stanza("stream:features"); |
2780
f8232abcab2a
s2smanager: Send reply stream header only after checking we serve this host (sorry darkrain... :) )
Matthew Wild <mwild1@gmail.com>
parents:
2760
diff
changeset
|
450 |
1936
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
451 if session.to_host then |
2613
afa20941e098
s2smanager, mod_compression, mod_tls: Changed event.session to event.origin for s2s-stream-features event for consistency.
Waqas Hussain <waqas20@gmail.com>
parents:
2545
diff
changeset
|
452 hosts[session.to_host].events.fire_event("s2s-stream-features", { origin = session, features = features }); |
1936
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
453 else |
a6ca0dcc7b83
s2smanager: Make s2s-stream-features a per-host event
Matthew Wild <mwild1@gmail.com>
parents:
1930
diff
changeset
|
454 (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
|
455 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
|
456 |
e875833ae08e
s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
Matthew Wild <mwild1@gmail.com>
parents:
1888
diff
changeset
|
457 log("debug", "Sending stream features: %s", tostring(features)); |
e875833ae08e
s2smanager: Send stream:features for incoming s2s connections which support XMPP 1.0
Matthew Wild <mwild1@gmail.com>
parents:
1888
diff
changeset
|
458 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
|
459 end |
148 | 460 elseif session.direction == "outgoing" then |
461 -- 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
|
462 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
|
463 session.streamid = attr.id; |
3651 | 464 |
465 if session.secure and not session.cert_chain_status then check_cert_status(session); end | |
466 | |
1007
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
467 -- Send unauthed buffer |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
468 -- (stanzas which are fine to send before dialback) |
2419
00d985639a06
s2smanager: Trim trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents:
2382
diff
changeset
|
469 -- Note that this is *not* the stanza queue (which |
1007
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
470 -- we can only send if auth succeeds) :) |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
471 local send_buffer = session.send_buffer; |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
472 if send_buffer and #send_buffer > 0 then |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
473 log("debug", "Sending s2s send_buffer now..."); |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
474 for i, data in ipairs(send_buffer) do |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
475 session.sends2s(tostring(data)); |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
476 send_buffer[i] = nil; |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
477 end |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
478 end |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
479 session.send_buffer = nil; |
c500d4cb7855
core.s2smanager: Buffer data sent before connection
Matthew Wild <mwild1@gmail.com>
parents:
1006
diff
changeset
|
480 |
1890
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
Matthew Wild <mwild1@gmail.com>
parents:
1889
diff
changeset
|
481 -- If server is pre-1.0, don't wait for features, just do dialback |
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
Matthew Wild <mwild1@gmail.com>
parents:
1889
diff
changeset
|
482 if session.version < 1.0 then |
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
Matthew Wild <mwild1@gmail.com>
parents:
1889
diff
changeset
|
483 if not session.dialback_verifying then |
1894
53f34ba6f6d6
Minor changes; outgoing TLS works.
Paul Aurich <paul@darkrain42.org>
parents:
1891
diff
changeset
|
484 log("debug", "Initiating dialback..."); |
1890
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
Matthew Wild <mwild1@gmail.com>
parents:
1889
diff
changeset
|
485 initiate_dialback(session); |
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
Matthew Wild <mwild1@gmail.com>
parents:
1889
diff
changeset
|
486 else |
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
Matthew Wild <mwild1@gmail.com>
parents:
1889
diff
changeset
|
487 mark_connected(session); |
aed0d8a0cca8
s2smanager: Don't wait for stream:features from non-XMPP-1.0 hosts
Matthew Wild <mwild1@gmail.com>
parents:
1889
diff
changeset
|
488 end |
148 | 489 end |
490 end | |
491 session.notopen = nil; | |
492 end | |
493 | |
959
e3db909065f2
sessionmanager, s2smanager, mod_component: Send reply </stream:stream> when client closes stream
Matthew Wild <mwild1@gmail.com>
parents:
938
diff
changeset
|
494 function streamclosed(session) |
2747
168104895051
sessionmanager, s2smanager: Close session on </stream:stream>
Matthew Wild <mwild1@gmail.com>
parents:
2746
diff
changeset
|
495 (session.log or log)("debug", "Received </stream:stream>"); |
168104895051
sessionmanager, s2smanager: Close session on </stream:stream>
Matthew Wild <mwild1@gmail.com>
parents:
2746
diff
changeset
|
496 session:close(); |
959
e3db909065f2
sessionmanager, s2smanager, mod_component: Send reply </stream:stream> when client closes stream
Matthew Wild <mwild1@gmail.com>
parents:
938
diff
changeset
|
497 end |
e3db909065f2
sessionmanager, s2smanager, mod_component: Send reply </stream:stream> when client closes stream
Matthew Wild <mwild1@gmail.com>
parents:
938
diff
changeset
|
498 |
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
|
499 function initiate_dialback(session) |
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
|
500 -- generate dialback key |
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
|
501 session.dialback_key = generate_dialback(session.streamid, session.to_host, session.from_host); |
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
|
502 session.sends2s(format("<db:result from='%s' to='%s'>%s</db:result>", session.from_host, session.to_host, session.dialback_key)); |
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
|
503 session.log("info", "sent dialback key on outgoing s2s stream"); |
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
|
504 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
|
505 |
148 | 506 function generate_dialback(id, to, from) |
2420
6ccd36a95a81
s2smanager, hostmanager: Make dialback secrets per-host
Matthew Wild <mwild1@gmail.com>
parents:
2419
diff
changeset
|
507 return sha256_hash(id..to..from..hosts[from].dialback_secret, true); |
148 | 508 end |
509 | |
510 function verify_dialback(id, to, from, key) | |
511 return key == generate_dialback(id, to, from); | |
512 end | |
513 | |
621
cd2cab5400fc
Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
Matthew Wild <mwild1@gmail.com>
parents:
615
diff
changeset
|
514 function make_authenticated(session, host) |
2799
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
515 if not session.secure then |
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
516 local local_host = session.direction == "incoming" and session.to_host or session.from_host; |
2801
0323bdb1fcfa
s2smanager: Fix syntax error)
Matthew Wild <mwild1@gmail.com>
parents:
2800
diff
changeset
|
517 if config.get(local_host, "core", "s2s_require_encryption") then |
2799
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
518 session:close({ |
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
519 condition = "policy-violation", |
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
520 text = "Encrypted server-to-server communication is required but was not " |
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
521 ..((session.direction == "outgoing" and "offered") or "used") |
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
522 }); |
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
523 end |
0dc7b5ceaf8f
s2smanager: Make require_s2s_encryption do what it says on the tin
Matthew Wild <mwild1@gmail.com>
parents:
2787
diff
changeset
|
524 end |
148 | 525 if session.type == "s2sout_unauthed" then |
526 session.type = "s2sout"; | |
527 elseif session.type == "s2sin_unauthed" then | |
528 session.type = "s2sin"; | |
621
cd2cab5400fc
Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
Matthew Wild <mwild1@gmail.com>
parents:
615
diff
changeset
|
529 if host then |
3650
2b80450bd7ae
s2smanager: Compatibility hack for when not using dialback
Paul Aurich <paul@darkrain42.org>
parents:
3540
diff
changeset
|
530 if not session.hosts[host] then session.hosts[host] = {}; end |
621
cd2cab5400fc
Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
Matthew Wild <mwild1@gmail.com>
parents:
615
diff
changeset
|
531 session.hosts[host].authed = true; |
cd2cab5400fc
Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
Matthew Wild <mwild1@gmail.com>
parents:
615
diff
changeset
|
532 end |
cd2cab5400fc
Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
Matthew Wild <mwild1@gmail.com>
parents:
615
diff
changeset
|
533 elseif session.type == "s2sin" and host then |
3650
2b80450bd7ae
s2smanager: Compatibility hack for when not using dialback
Paul Aurich <paul@darkrain42.org>
parents:
3540
diff
changeset
|
534 if not session.hosts[host] then session.hosts[host] = {}; end |
621
cd2cab5400fc
Add support for dialback piggy-backing. Fixes #37. Thanks to CShadowRun for helping me test :)
Matthew Wild <mwild1@gmail.com>
parents:
615
diff
changeset
|
535 session.hosts[host].authed = true; |
148 | 536 else |
537 return false; | |
538 end | |
1075
831c84cbf5fa
s2smanager: Miscellaneous logging improvements, changing levels, improving messages and using session loggers where possible
Matthew Wild <mwild1@gmail.com>
parents:
1007
diff
changeset
|
539 session.log("debug", "connection %s->%s is now authenticated", session.from_host or "(unknown)", session.to_host or "(unknown)"); |
148 | 540 |
541 mark_connected(session); | |
542 | |
543 return true; | |
544 end | |
545 | |
1891 | 546 -- Stream is authorised, and ready for normal stanzas |
148 | 547 function mark_connected(session) |
186
bfa8a30ea488
sends2s -> s2s_session.send(), s2s_session.send() -> s2s_session.sends2s()
Matthew Wild <mwild1@gmail.com>
parents:
179
diff
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|
548 local sendq, send = session.sendq, session.sends2s; |
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549 |
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550 local from, to = session.from_host, session.to_host; |
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551 |
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552 session.log("info", session.direction.." s2s connection "..from.."->"..to.." complete"); |
186
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553 |
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554 local send_to_host = send_to_host; |
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555 function session.send(data) send_to_host(to, from, data); end |
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556 |
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557 local event_data = { session = session }; |
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558 if session.type == "s2sout" then |
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559 prosody.events.fire_event("s2sout-established", event_data); |
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560 hosts[session.from_host].events.fire_event("s2sout-established", event_data); |
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561 else |
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562 prosody.events.fire_event("s2sin-established", event_data); |
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563 hosts[session.to_host].events.fire_event("s2sin-established", event_data); |
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564 end |
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565 |
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566 if session.direction == "outgoing" then |
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567 if sendq then |
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Log how many queued stanzas we send
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568 session.log("debug", "sending "..#sendq.." queued stanzas across new outgoing connection to "..session.to_host); |
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569 for i, data in ipairs(sendq) do |
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570 send(data[1]); |
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571 sendq[i] = nil; |
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572 end |
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573 session.sendq = nil; |
148 | 574 end |
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575 |
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576 session.srv_hosts = nil; |
148 | 577 end |
578 end | |
579 | |
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580 local resting_session = { -- Resting, not dead |
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581 destroyed = true; |
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582 type = "s2s_destroyed"; |
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583 open_stream = function (session) |
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584 session.log("debug", "Attempt to open stream on resting session"); |
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585 end; |
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586 close = function (session) |
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587 session.log("debug", "Attempt to close already-closed session"); |
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588 end; |
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589 filter = function (type, data) return data; end; |
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590 }; resting_session.__index = resting_session; |
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591 |
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592 function retire_session(session) |
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593 local log = session.log or log; |
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594 for k in pairs(session) do |
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595 if k ~= "trace" and k ~= "log" and k ~= "id" then |
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596 session[k] = nil; |
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597 end |
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598 end |
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599 |
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600 function session.send(data) log("debug", "Discarding data sent to resting session: %s", tostring(data)); end |
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601 function session.data(data) log("debug", "Discarding data received from resting session: %s", tostring(data)); end |
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602 return setmetatable(session, resting_session); |
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603 end |
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604 |
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605 function destroy_session(session, reason) |
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606 if session.destroyed then return; end |
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607 (session.log or log)("info", "Destroying "..tostring(session.direction).." session "..tostring(session.from_host).."->"..tostring(session.to_host)); |
331 | 608 |
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609 if session.direction == "outgoing" then |
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610 hosts[session.from_host].s2sout[session.to_host] = nil; |
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611 bounce_sendq(session, reason); |
621
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612 elseif session.direction == "incoming" then |
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613 incoming_s2s[session] = nil; |
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614 end |
331 | 615 |
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616 local event_data = { session = session, reason = reason }; |
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617 if session.type == "s2sout" then |
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618 prosody.events.fire_event("s2sout-destroyed", event_data); |
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619 if hosts[session.from_host] then |
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620 hosts[session.from_host].events.fire_event("s2sout-destroyed", event_data); |
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621 end |
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622 elseif session.type == "s2sin" then |
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623 prosody.events.fire_event("s2sin-destroyed", event_data); |
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624 if hosts[session.to_host] then |
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625 hosts[session.to_host].events.fire_event("s2sin-destroyed", event_data); |
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626 end |
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627 end |
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628 |
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629 retire_session(session); -- Clean session until it is GC'd |
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630 end |
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631 |
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Just committing this warning, because I want to know if the problem really affects us
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632 return _M; |