prosody
045209b41b3a
plugins/mod_s2s/s2sout.lib.lua

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plugins/mod_s2s/s2sout.lib.lua @ 10036:045209b41b3a 0.11

mod_pep: Handle presence based subscription outside of util.pubsub (fixes #1372) Subscriptions were updated for each incoming presence stanza from contacts. Each subscription change triggered a configuration save, which would filter out the presence based subscriptions and usually end up replacing the existing data with identical data. With many subscribed nodes this adds up to a fair bit of IO bound work that is avoided by keeping them separate.
author Kim Alvefur <zash@zash.se>
date Thu, 30 May 2019 15:16:56 +0200
parent 9414:a48579a7b709
child 9871:744e08ac5596
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1 -- Prosody IM
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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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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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9 --- Module containing all the logic for connecting to a remote server
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10
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11 -- luacheck: ignore 432/err
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12
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13 local portmanager = require "core.portmanager";
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14 local wrapclient = require "net.server".wrapclient;
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15 local initialize_filters = require "util.filters".initialize;
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16 local idna_to_ascii = require "util.encodings".idna.to_ascii;
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17 local new_ip = require "util.ip".new_ip;
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18 local rfc6724_dest = require "util.rfc6724".destination;
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19 local socket = require "socket";
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20 local adns = require "net.adns";
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21 local t_insert, t_sort, ipairs = table.insert, table.sort, ipairs;
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22 local local_addresses = require "util.net".local_addresses;
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24 local s2s_destroy_session = require "core.s2smanager".destroy_session;
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26 local default_mode = module:get_option("network_default_read_size", 4096);
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28 local log = module._log;
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30 local sources = {};
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31 local has_ipv4, has_ipv6;
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33 local dns_timeout = module:get_option_number("dns_timeout", 15);
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34 local resolvers = module:get_option_set("s2s_dns_resolvers")
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36 local s2sout = {};
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38 local s2s_listener;
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41 function s2sout.set_listener(listener)
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42 s2s_listener = listener;
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43 end
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45 local function compare_srv_priorities(a,b)
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46 return a.priority < b.priority or (a.priority == b.priority and a.weight > b.weight);
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47 end
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49 function s2sout.initiate_connection(host_session)
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50 local log = host_session.log or log;
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51
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52 initialize_filters(host_session);
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53 host_session.version = 1;
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54
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55 host_session.resolver = adns.resolver();
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56 host_session.resolver._resolver:settimeout(dns_timeout);
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57 if resolvers then
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58 for resolver in resolvers do
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59 host_session.resolver._resolver:addnameserver(resolver);
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60 end
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61 end
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62
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63 -- Kick the connection attempting machine into life
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64 if not s2sout.attempt_connection(host_session) then
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65 -- Intentionally not returning here, the
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66 -- session is needed, connected or not
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67 s2s_destroy_session(host_session);
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68 end
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69
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70 if not host_session.sends2s then
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71 -- A sends2s which buffers data (until the stream is opened)
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72 -- note that data in this buffer will be sent before the stream is authed
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73 -- and will not be ack'd in any way, successful or otherwise
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74 local buffer;
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75 function host_session.sends2s(data)
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76 if not buffer then
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77 buffer = {};
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78 host_session.send_buffer = buffer;
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79 end
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80 log("debug", "Buffering data on unconnected s2sout to %s", host_session.to_host);
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81 buffer[#buffer+1] = data;
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82 log("debug", "Buffered item %d: %s", #buffer, data);
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83 end
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84 end
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85 end
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86
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87 function s2sout.attempt_connection(host_session, err)
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88 local to_host = host_session.to_host;
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
89 local connect_host, connect_port = to_host and idna_to_ascii(to_host), 5269;
8911
cea6165a03d0 mod_s2s: Use session logger to ease debugging
Kim Alvefur <zash@zash.se>
parents: 8910
diff changeset
90 local log = host_session.log or log;
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5703
diff changeset
91
4555
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parents:
diff changeset
92 if not connect_host then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
93 return false;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
94 end
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5703
diff changeset
95
4555
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
96 if not err then -- This is our first attempt
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
97 log("debug", "First attempt to connect to %s, starting with SRV lookup...", to_host);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
98 host_session.connecting = true;
8267
42fad8465537 mod_s2s: Use a separate resolver object for each outgoing session
Matthew Wild <mwild1@gmail.com>
parents: 7685
diff changeset
99 host_session.resolver:lookup(function (answer)
6917
65344c3bae7a mod_s2s/s2sout: Keep SRV lookup response around even if it's empty
Kim Alvefur <zash@zash.se>
parents: 6685
diff changeset
100 local srv_hosts = { answer = answer };
65344c3bae7a mod_s2s/s2sout: Keep SRV lookup response around even if it's empty
Kim Alvefur <zash@zash.se>
parents: 6685
diff changeset
101 host_session.srv_hosts = srv_hosts;
65344c3bae7a mod_s2s/s2sout: Keep SRV lookup response around even if it's empty
Kim Alvefur <zash@zash.se>
parents: 6685
diff changeset
102 host_session.srv_choice = 0;
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
103 host_session.connecting = nil;
5112
8b94a8d92cf3 mod_s2s: Check that an SRV reply isn't empty.
Kim Alvefur <zash@zash.se>
parents: 4987
diff changeset
104 if answer and #answer > 0 then
4987
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Matthew Wild <mwild1@gmail.com>
parents: 4959
diff changeset
105 log("debug", "%s has SRV records, handling...", to_host);
4555
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
106 for _, record in ipairs(answer) do
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
107 t_insert(srv_hosts, record.srv);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
108 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
109 if #srv_hosts == 1 and srv_hosts[1].target == "." then
4987
d37f2abac72c mod_s2s/s2sout.lib: Use %s to insert strings into log messages instead of concatenation
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parents: 4959
diff changeset
110 log("debug", "%s does not provide a XMPP service", to_host);
4555
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
111 s2s_destroy_session(host_session, err); -- Nothing to see here
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
112 return;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
113 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
114 t_sort(srv_hosts, compare_srv_priorities);
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diff changeset
115
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parents:
diff changeset
116 local srv_choice = srv_hosts[1];
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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diff changeset
117 host_session.srv_choice = 1;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
118 if srv_choice then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
119 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
120 log("debug", "Best record found, will connect to %s:%d", connect_host, connect_port);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
121 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
122 else
4987
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Matthew Wild <mwild1@gmail.com>
parents: 4959
diff changeset
123 log("debug", "%s has no SRV records, falling back to A/AAAA", to_host);
4555
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parents:
diff changeset
124 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
125 -- Try with SRV, or just the plain hostname if no SRV
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
126 local ok, err = s2sout.try_connect(host_session, connect_host, connect_port);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
127 if not ok then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
128 if not s2sout.attempt_connection(host_session, err) then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
129 -- No more attempts will be made
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
130 s2s_destroy_session(host_session, err);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
131 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
132 end
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133 end, "_xmpp-server._tcp."..connect_host..".", "SRV");
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parents: 5703
diff changeset
134
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
135 return true; -- Attempt in progress
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
136 elseif host_session.ip_hosts then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
137 return s2sout.try_connect(host_session, connect_host, connect_port, err);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
138 elseif host_session.srv_hosts and #host_session.srv_hosts > host_session.srv_choice then -- Not our first attempt, and we also have SRV
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
139 host_session.srv_choice = host_session.srv_choice + 1;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
140 local srv_choice = host_session.srv_hosts[host_session.srv_choice];
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
141 connect_host, connect_port = srv_choice.target or to_host, srv_choice.port or connect_port;
8483
6d47b74926dd mod_s2s: Remove tostring() in logging since this is handled by util.format now
Kim Alvefur <zash@zash.se>
parents: 8267
diff changeset
142 host_session.log("info", "Connection failed (%s). Attempt #%d: This time to %s:%d", err, host_session.srv_choice, connect_host, connect_port);
4555
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 else
8483
6d47b74926dd mod_s2s: Remove tostring() in logging since this is handled by util.format now
Kim Alvefur <zash@zash.se>
parents: 8267
diff changeset
144 host_session.log("info", "Failed in all attempts to connect to %s", host_session.to_host);
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
145 -- We're out of options
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
146 return false;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
147 end
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5703
diff changeset
148
4555
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
149 if not (connect_host and connect_port) then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
150 -- Likely we couldn't resolve DNS
8483
6d47b74926dd mod_s2s: Remove tostring() in logging since this is handled by util.format now
Kim Alvefur <zash@zash.se>
parents: 8267
diff changeset
151 log("warn", "Hmm, we're without a host (%s) and port (%s) to connect to for %s, giving up :(", connect_host, connect_port, to_host);
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
152 return false;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
153 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155 return s2sout.try_connect(host_session, connect_host, connect_port);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
156 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158 function s2sout.try_next_ip(host_session)
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 host_session.connecting = nil;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
160 host_session.ip_choice = host_session.ip_choice + 1;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 local ip = host_session.ip_hosts[host_session.ip_choice];
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162 local ok, err= s2sout.make_connect(host_session, ip.ip, ip.port);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
163 if not ok then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
164 if not s2sout.attempt_connection(host_session, err or "closed") then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
165 err = err and (": "..err) or "";
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 s2s_destroy_session(host_session, "Connection failed"..err);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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parents:
diff changeset
167 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
168 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
169 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
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170
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171 function s2sout.try_connect(host_session, connect_host, connect_port, err)
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172 host_session.connecting = true;
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173 local log = host_session.log or log;
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174
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175 if not err then
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176 local IPs = {};
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177 host_session.ip_hosts = IPs;
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178 -- luacheck: ignore 231/handle4 231/handle6
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179 local handle4, handle6;
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180 local have_other_result = not(has_ipv4) or not(has_ipv6) or false;
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181
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182 if has_ipv4 then
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183 handle4 = host_session.resolver:lookup(function (reply, err)
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184 handle4 = nil;
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185
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186 if reply and reply[#reply] and reply[#reply].a then
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187 for _, ip in ipairs(reply) do
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188 log("debug", "DNS reply for %s gives us %s", connect_host, ip.a);
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189 IPs[#IPs+1] = new_ip(ip.a, "IPv4");
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190 end
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191 elseif err then
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192 log("debug", "Error in DNS lookup: %s", err);
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193 end
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194
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195 if have_other_result then
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196 if #IPs > 0 then
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197 rfc6724_dest(host_session.ip_hosts, sources);
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198 for i = 1, #IPs do
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199 IPs[i] = {ip = IPs[i], port = connect_port};
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200 end
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201 host_session.ip_choice = 0;
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202 s2sout.try_next_ip(host_session);
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203 else
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204 log("debug", "DNS lookup failed to get a response for %s", connect_host);
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205 host_session.ip_hosts = nil;
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206 if not s2sout.attempt_connection(host_session, "name resolution failed") then -- Retry if we can
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207 log("debug", "No other records to try for %s - destroying", host_session.to_host);
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208 err = err and (": "..err) or "";
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209 s2s_destroy_session(host_session, "DNS resolution failed"..err); -- End of the line, we can't
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210 end
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211 end
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212 else
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213 have_other_result = true;
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214 end
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215 end, connect_host, "A", "IN");
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216 else
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217 have_other_result = true;
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218 end
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219
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220 if has_ipv6 then
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221 handle6 = host_session.resolver:lookup(function (reply, err)
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222 handle6 = nil;
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223
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224 if reply and reply[#reply] and reply[#reply].aaaa then
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225 for _, ip in ipairs(reply) do
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226 log("debug", "DNS reply for %s gives us %s", connect_host, ip.aaaa);
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227 IPs[#IPs+1] = new_ip(ip.aaaa, "IPv6");
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228 end
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229 elseif err then
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230 log("debug", "Error in DNS lookup: %s", err);
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231 end
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232
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233 if have_other_result then
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234 if #IPs > 0 then
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235 rfc6724_dest(host_session.ip_hosts, sources);
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236 for i = 1, #IPs do
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237 IPs[i] = {ip = IPs[i], port = connect_port};
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238 end
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239 host_session.ip_choice = 0;
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240 s2sout.try_next_ip(host_session);
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241 else
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242 log("debug", "DNS lookup failed to get a response for %s", connect_host);
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243 host_session.ip_hosts = nil;
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244 if not s2sout.attempt_connection(host_session, "name resolution failed") then -- Retry if we can
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245 log("debug", "No other records to try for %s - destroying", host_session.to_host);
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246 err = err and (": "..err) or "";
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247 s2s_destroy_session(host_session, "DNS resolution failed"..err); -- End of the line, we can't
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248 end
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249 end
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250 else
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251 have_other_result = true;
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252 end
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253 end, connect_host, "AAAA", "IN");
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254 else
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255 have_other_result = true;
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256 end
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257 return true;
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258 elseif host_session.ip_hosts and #host_session.ip_hosts > host_session.ip_choice then -- Not our first attempt, and we also have IPs left to try
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259 s2sout.try_next_ip(host_session);
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260 else
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diff changeset
261 log("debug", "Out of IP addresses, trying next SRV record (if any)");
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262 host_session.ip_hosts = nil;
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diff changeset
263 if not s2sout.attempt_connection(host_session, "out of IP addresses") then -- Retry if we can
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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264 log("debug", "No other records to try for %s - destroying", host_session.to_host);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
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265 err = err and (": "..err) or "";
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266 s2s_destroy_session(host_session, "Connecting failed"..err); -- End of the line, we can't
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267 return false;
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268 end
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269 end
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parents:
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270
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271 return true;
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272 end
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273
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parents:
diff changeset
274 function s2sout.make_connect(host_session, connect_host, connect_port)
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275 local log = host_session.log or log;
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parents: 8910
diff changeset
276 log("debug", "Beginning new connection attempt to %s ([%s]:%d)", host_session.to_host, connect_host.addr, connect_port);
5703
ea00fc524b95 mod_s2s/s2sout.lib: Remove unused variables and imports
Matthew Wild <mwild1@gmail.com>
parents: 5702
diff changeset
277
5388
f833d2188c16 mod_s2s: Reset secure flag on new connection attempt
Kim Alvefur <zash@zash.se>
parents: 5386
diff changeset
278 -- Reset secure flag in case this is another
f833d2188c16 mod_s2s: Reset secure flag on new connection attempt
Kim Alvefur <zash@zash.se>
parents: 5386
diff changeset
279 -- connection attempt after a failed STARTTLS
f833d2188c16 mod_s2s: Reset secure flag on new connection attempt
Kim Alvefur <zash@zash.se>
parents: 5386
diff changeset
280 host_session.secure = nil;
5859
e327f2d4e09f mod_c2s, mod_s2s: Set session.encrypted as session.secure does not allways mean encrypted (eg consider_bosh_secure)
Kim Alvefur <zash@zash.se>
parents: 5799
diff changeset
281 host_session.encrypted = nil;
5388
f833d2188c16 mod_s2s: Reset secure flag on new connection attempt
Kim Alvefur <zash@zash.se>
parents: 5386
diff changeset
282
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
283 local conn, handler;
5700
94081567ea9e mod_s2s/s2sout.lib: Only attempt to create an IPv6 socket if LuaSocket supports IPv6
Matthew Wild <mwild1@gmail.com>
parents: 5552
diff changeset
284 local proto = connect_host.proto;
94081567ea9e mod_s2s/s2sout.lib: Only attempt to create an IPv6 socket if LuaSocket supports IPv6
Matthew Wild <mwild1@gmail.com>
parents: 5552
diff changeset
285 if proto == "IPv4" then
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
286 conn, handler = socket.tcp();
5700
94081567ea9e mod_s2s/s2sout.lib: Only attempt to create an IPv6 socket if LuaSocket supports IPv6
Matthew Wild <mwild1@gmail.com>
parents: 5552
diff changeset
287 elseif proto == "IPv6" and socket.tcp6 then
94081567ea9e mod_s2s/s2sout.lib: Only attempt to create an IPv6 socket if LuaSocket supports IPv6
Matthew Wild <mwild1@gmail.com>
parents: 5552
diff changeset
288 conn, handler = socket.tcp6();
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
289 else
5700
94081567ea9e mod_s2s/s2sout.lib: Only attempt to create an IPv6 socket if LuaSocket supports IPv6
Matthew Wild <mwild1@gmail.com>
parents: 5552
diff changeset
290 handler = "Unsupported protocol: "..tostring(proto);
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
291 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5703
diff changeset
292
4555
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
293 if not conn then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
294 log("warn", "Failed to create outgoing connection, system error: %s", handler);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
295 return false, handler;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
296 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
297
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
298 conn:settimeout(0);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
299 local success, err = conn:connect(connect_host.addr, connect_port);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
300 if not success and err ~= "timeout" then
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
301 log("warn", "s2s connect() to %s (%s:%d) failed: %s", host_session.to_host, connect_host.addr, connect_port, err);
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
302 return false, err;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
303 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5703
diff changeset
304
7561
ab8324d3b899 mod_s2s: Set read mode for s2sout sockets to the same as s2sins
Kim Alvefur <zash@zash.se>
parents: 7098
diff changeset
305 conn = wrapclient(conn, connect_host.addr, connect_port, s2s_listener, default_mode);
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
306 host_session.conn = conn;
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5703
diff changeset
307
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
308 -- Register this outgoing connection so that xmppserver_listener knows about it
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
309 -- otherwise it will assume it is a new incoming connection
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
310 s2s_listener.register_outgoing(conn, host_session);
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5703
diff changeset
311
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
312 log("debug", "Connection attempt in progress...");
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
313 return true;
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
314 end
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
315
4602
ba898af15de5 mod_s2s: Collect s2s sources from portmanager and get local address if necessary
Florian Zeitz <florob@babelmonkeys.de>
parents: 4599
diff changeset
316 module:hook_global("service-added", function (event)
ba898af15de5 mod_s2s: Collect s2s sources from portmanager and get local address if necessary
Florian Zeitz <florob@babelmonkeys.de>
parents: 4599
diff changeset
317 if event.name ~= "s2s" then return end
ba898af15de5 mod_s2s: Collect s2s sources from portmanager and get local address if necessary
Florian Zeitz <florob@babelmonkeys.de>
parents: 4599
diff changeset
318
ba898af15de5 mod_s2s: Collect s2s sources from portmanager and get local address if necessary
Florian Zeitz <florob@babelmonkeys.de>
parents: 4599
diff changeset
319 local s2s_sources = portmanager.get_active_services():get("s2s");
4611
8572373fa26f mod_s2s/s2sout.lib: Log message instead of traceback when s2s isn't configured for any ports
Matthew Wild <mwild1@gmail.com>
parents: 4602
diff changeset
320 if not s2s_sources then
8572373fa26f mod_s2s/s2sout.lib: Log message instead of traceback when s2s isn't configured for any ports
Matthew Wild <mwild1@gmail.com>
parents: 4602
diff changeset
321 module:log("warn", "s2s not listening on any ports, outgoing connections may fail");
8572373fa26f mod_s2s/s2sout.lib: Log message instead of traceback when s2s isn't configured for any ports
Matthew Wild <mwild1@gmail.com>
parents: 4602
diff changeset
322 return;
8572373fa26f mod_s2s/s2sout.lib: Log message instead of traceback when s2s isn't configured for any ports
Matthew Wild <mwild1@gmail.com>
parents: 4602
diff changeset
323 end
4602
ba898af15de5 mod_s2s: Collect s2s sources from portmanager and get local address if necessary
Florian Zeitz <florob@babelmonkeys.de>
parents: 4599
diff changeset
324 for source, _ in pairs(s2s_sources) do
7092
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
325 if source == "*" or source == "0.0.0.0" then
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
326 for _, addr in ipairs(local_addresses("ipv4", true)) do
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
327 sources[#sources + 1] = new_ip(addr, "IPv4");
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
328 end
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
329 elseif source == "::" then
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
330 for _, addr in ipairs(local_addresses("ipv6", true)) do
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
331 sources[#sources + 1] = new_ip(addr, "IPv6");
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
332 end
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
333 else
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
334 sources[#sources + 1] = new_ip(source, (source:find(":") and "IPv6") or "IPv4");
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
335 end
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
336 end
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
337 for i = 1,#sources do
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
338 if sources[i].proto == "IPv6" then
6682
63f5870f9afe mod_s2s/s2sout: Use the local address assigned to UDP sockets instead of util.net to enumerate possible source addresses
Kim Alvefur <zash@zash.se>
parents: 6680
diff changeset
339 has_ipv6 = true;
7092
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
340 elseif sources[i].proto == "IPv4" then
4922
d1fdc545f8b2 mod_s2s: Only do AAAA lookup if IPv6 is available, and A if IPv4 is available.
Kim Alvefur <zash@zash.se>
parents: 4906
diff changeset
341 has_ipv4 = true;
d1fdc545f8b2 mod_s2s: Only do AAAA lookup if IPv6 is available, and A if IPv4 is available.
Kim Alvefur <zash@zash.se>
parents: 4906
diff changeset
342 end
d1fdc545f8b2 mod_s2s: Only do AAAA lookup if IPv6 is available, and A if IPv4 is available.
Kim Alvefur <zash@zash.se>
parents: 4906
diff changeset
343 end
7092
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
344 if not (has_ipv4 or has_ipv6) then
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
345 module:log("warn", "No local IPv4 or IPv6 addresses detected, outgoing connections may fail");
bee63de49663 Backout 63f5870f9afe, no longer needed since Windows is currently unsupported
Kim Alvefur <zash@zash.se>
parents: 6682
diff changeset
346 end
4602
ba898af15de5 mod_s2s: Collect s2s sources from portmanager and get local address if necessary
Florian Zeitz <florob@babelmonkeys.de>
parents: 4599
diff changeset
347 end);
ba898af15de5 mod_s2s: Collect s2s sources from portmanager and get local address if necessary
Florian Zeitz <florob@babelmonkeys.de>
parents: 4599
diff changeset
348
4555
3dce04129693 s2smanager, mod_s2s, mod_s2s/s2sout: Split connection handling out of s2smanager into mod_s2s, and further split connection logic for s2sout to a module lib, s2sout.lib.lua
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
349 return s2sout;