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plugins/mod_component.lua @ 13262:9a86e7cbdd79
mod_storage_internal: Fix fast trimming of archive with exactly one item
This method would previously never delete the first (and only) item
since it works out which item should become the first item after the
trim operation, which doesn't make sense when all should be removed.
This also works as an optimization for when all the last item should be
trimmed, thus items should be removed.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 24 Sep 2023 13:41:54 +0200 |
parent | 13213:50324f66ca2a |
rev | line source |
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1523
841d61be198f
Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
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1 -- Prosody IM |
2923
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Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
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2 -- Copyright (C) 2008-2010 Matthew Wild |
b7049746bd29
Update copyright headers for 2010
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3 -- Copyright (C) 2008-2010 Waqas Hussain |
5776
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Remove all trailing whitespace
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4 -- |
902
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5 -- This project is MIT/X11 licensed. Please see the |
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6 -- COPYING file in the source package for more information. |
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7 -- |
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8 |
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9 module:set_global(); |
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10 |
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11 local t_concat = table.concat; |
9562
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Many things: switch from hacky multi-arg xpcall implementations to a standard util.xpcall
Matthew Wild <mwild1@gmail.com>
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12 local tostring, type = tostring, type; |
12977
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plugins: Prefix module imports with prosody namespace
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13 local xpcall = require "prosody.util.xpcall".xpcall; |
5724
a49f32e3d73b
mod_component: xpcall() stanza processing, as per other listeners, preventing potentially harmful 'top-level errors'
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14 local traceback = debug.traceback; |
902
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15 |
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16 local logger = require "prosody.util.logger"; |
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17 local sha1 = require "prosody.util.hashes".sha1; |
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18 local st = require "prosody.util.stanza"; |
902
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19 |
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20 local jid_host = require "prosody.util.jid".host; |
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21 local new_xmpp_stream = require "prosody.util.xmppstream".new; |
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22 local uuid_gen = require "prosody.util.uuid".generate; |
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23 |
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mod_admin_adhoc, mod_admin_telnet, mod_bosh, mod_c2s, mod_component, mod_pep, mod_presence, mod_roster, mod_s2s: Import core_post_stanza from the global prosody table.
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24 local core_process_stanza = prosody.core_process_stanza; |
5370
7838acadb0fa
mod_announce, mod_auth_anonymous, mod_c2s, mod_c2s, mod_component, mod_iq, mod_message, mod_presence, mod_tls: Access prosody.{hosts,bare_sessions,full_sessions} instead of the old globals
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25 local hosts = prosody.hosts; |
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26 |
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27 local log = module._log; |
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28 |
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mod_component: Enable TCP keepalives on component streams
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29 local opt_keepalives = module:get_option_boolean("component_tcp_keepalives", module:get_option_boolean("tcp_keepalives", true)); |
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30 local stanza_size_limit = module:get_option_integer("component_stanza_size_limit", |
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31 module:get_option_integer("s2s_stanza_size_limit", 1024 * 512, 10000), 10000); |
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32 |
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33 local sessions = module:shared("sessions"); |
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34 |
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35 local function keepalive(event) |
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36 local session = event.session; |
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37 if not session.notopen then |
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38 return event.session.send(' '); |
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39 end |
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40 end |
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41 |
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42 function module.add_host(module) |
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43 if module:get_host_type() ~= "component" then |
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44 error("Don't load mod_component manually, it should be for a component, please see https://prosody.im/doc/components", 0); |
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45 end |
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46 |
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47 local env = module.environment; |
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48 env.connected = false; |
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49 env.session = false; |
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50 |
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51 local send; |
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52 |
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53 local function on_destroy(session, err) --luacheck: ignore 212/err |
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54 module:set_status("warn", err and ("Disconnected: "..err) or "Disconnected"); |
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55 env.connected = false; |
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56 env.session = false; |
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57 send = nil; |
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58 session.on_destroy = nil; |
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59 end |
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60 |
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61 -- Handle authentication attempts by component |
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62 local function handle_component_auth(event) |
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63 local session, stanza = event.origin, event.stanza; |
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64 |
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mod_component: Allow unauthenticated components to authenticate (thanks Maranda)
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65 if session.type ~= "component_unauthed" then return; end |
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66 |
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67 if (not session.host) or #stanza.tags > 0 then |
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68 (session.log or log)("warn", "Invalid component handshake for host: %s", session.host); |
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69 session:close("not-authorized"); |
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70 return true; |
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71 end |
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72 |
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73 local secret = module:get_option_string("component_secret"); |
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74 if not secret then |
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75 (session.log or log)("warn", "Component attempted to identify as %s, but component_secret is not set", session.host); |
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76 session:close("not-authorized"); |
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77 return true; |
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78 end |
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79 |
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80 local supplied_token = t_concat(stanza); |
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81 local calculated_token = sha1(session.streamid..secret, true); |
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82 if supplied_token:lower() ~= calculated_token:lower() then |
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83 module:log("info", "Component authentication failed for %s", session.host); |
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84 session:close{ condition = "not-authorized", text = "Given token does not match calculated token" }; |
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85 return true; |
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86 end |
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87 |
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88 if env.connected then |
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89 local policy = module:get_option_enum("component_conflict_resolve", "kick_new", "kick_old"); |
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90 if policy == "kick_old" then |
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91 env.session:close{ condition = "conflict", text = "Replaced by a new connection" }; |
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92 else -- kick_new |
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93 module:log("error", "Second component attempted to connect, denying connection"); |
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94 session:close{ condition = "conflict", text = "Component already connected" }; |
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95 return true; |
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96 end |
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97 end |
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98 |
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99 env.connected = true; |
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100 env.session = session; |
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101 send = session.send; |
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102 session.on_destroy = on_destroy; |
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103 session.component_validate_from = module:get_option_boolean("validate_from_addresses", true); |
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104 session.type = "component"; |
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105 module:log("info", "External component successfully authenticated"); |
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106 session.send(st.stanza("handshake")); |
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107 module:fire_event("component-authenticated", { session = session }); |
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108 module:set_status("info", "Connected"); |
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109 |
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110 return true; |
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111 end |
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112 module:hook("stanza/jabber:component:accept:handshake", handle_component_auth, -1); |
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113 |
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114 -- Handle stanzas addressed to this component |
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115 local function handle_stanza(event) |
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116 local stanza = event.stanza; |
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117 if send then |
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118 stanza.attr.xmlns = nil; |
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119 send(stanza); |
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120 else |
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121 if stanza.name == "iq" and stanza.attr.type == "get" and stanza.attr.to == module.host then |
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122 local query = stanza.tags[1]; |
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123 local node = query.attr.node; |
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124 if query.name == "query" and query.attr.xmlns == "http://jabber.org/protocol/disco#info" and (not node or node == "") then |
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125 local name = module:get_option_string("name"); |
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126 if name then |
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127 local reply = st.reply(stanza):tag("query", { xmlns = "http://jabber.org/protocol/disco#info" }) |
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128 :tag("identity", { category = "component", type = "generic", name = module:get_option_string("name", "Prosody") }):up() |
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129 :tag("feature", { var = "http://jabber.org/protocol/disco#info" }):up(); |
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130 event.origin.send(reply); |
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131 return true; |
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132 end |
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133 end |
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134 end |
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135 module:log("warn", "Component not connected, bouncing error for: %s", stanza:top_tag()); |
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136 if stanza.attr.type ~= "error" and stanza.attr.type ~= "result" then |
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137 event.origin.send(st.error_reply(stanza, "wait", "remote-server-timeout", "Component unavailable", module.host) |
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138 :tag("not-connected", { xmlns = "xmpp:prosody.im/protocol/component" })); |
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139 end |
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140 end |
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141 return true; |
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142 end |
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143 |
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144 module:hook("iq/bare", handle_stanza, -1); |
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145 module:hook("message/bare", handle_stanza, -1); |
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146 module:hook("presence/bare", handle_stanza, -1); |
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147 module:hook("iq/full", handle_stanza, -1); |
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148 module:hook("message/full", handle_stanza, -1); |
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149 module:hook("presence/full", handle_stanza, -1); |
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150 module:hook("iq/host", handle_stanza, -1); |
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151 module:hook("message/host", handle_stanza, -1); |
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152 module:hook("presence/host", handle_stanza, -1); |
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153 |
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154 module:hook("component-read-timeout", keepalive, -1); |
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155 end |
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156 |
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157 module:hook("component-read-timeout", keepalive, -1); |
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158 |
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159 --- Network and stream part --- |
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160 |
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161 local xmlns_component = 'jabber:component:accept'; |
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162 |
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163 local listener = {}; |
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164 |
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165 --- Callbacks/data for xmppstream to handle streams for us --- |
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166 |
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167 local stream_callbacks = { default_ns = xmlns_component }; |
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168 |
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169 local xmlns_xmpp_streams = "urn:ietf:params:xml:ns:xmpp-streams"; |
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170 |
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171 function stream_callbacks.error(session, error, data) |
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172 if session.destroyed then return; end |
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173 module:log("warn", "Error processing component stream: %s", error); |
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174 if error == "no-stream" then |
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175 session:close("invalid-namespace"); |
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176 elseif error == "parse-error" then |
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177 session.log("warn", "External component %s XML parse error: %s", session.host, data); |
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178 session:close("not-well-formed"); |
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179 elseif error == "stream-error" then |
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180 local condition, text = "undefined-condition"; |
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181 for child in data:childtags(nil, xmlns_xmpp_streams) do |
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182 if child.name ~= "text" then |
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183 condition = child.name; |
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184 else |
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185 text = child:get_text(); |
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186 end |
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187 if condition ~= "undefined-condition" and text then |
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188 break; |
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189 end |
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190 end |
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191 text = condition .. (text and (" ("..text..")") or ""); |
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192 session.log("info", "Session closed by remote with error: %s", text); |
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193 session:close(nil, text); |
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194 end |
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195 end |
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196 |
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197 function stream_callbacks.streamopened(session, attr) |
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198 if not attr.to then |
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199 session:close{ condition = "improper-addressing", text = "A 'to' attribute is required on stream headers" }; |
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200 return; |
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201 end |
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202 if not hosts[attr.to] or not hosts[attr.to].modules.component then |
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203 session:close{ condition = "host-unknown", text = tostring(attr.to).." does not match any configured external components" }; |
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204 return; |
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205 end |
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206 session.host = attr.to; |
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207 session.streamid = uuid_gen(); |
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208 session.notopen = nil; |
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209 -- Return stream header |
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210 session:open_stream(); |
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211 end |
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212 |
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213 function stream_callbacks.streamclosed(session) |
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214 session.log("debug", "Received </stream:stream>"); |
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215 session:close(); |
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216 end |
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217 |
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218 local function handleerr(err) log("error", "Traceback[component]: %s", traceback(err, 2)); end |
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219 function stream_callbacks.handlestanza(session, stanza) |
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220 -- Namespaces are icky. |
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221 if not stanza.attr.xmlns and stanza.name == "handshake" then |
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222 stanza.attr.xmlns = xmlns_component; |
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223 end |
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224 if not stanza.attr.xmlns or stanza.attr.xmlns == "jabber:client" then |
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225 local from = stanza.attr.from; |
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226 if session.component_validate_from then |
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227 if not from or (jid_host(from) ~= session.host) then |
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228 -- Return error |
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229 session.log("warn", "Component sent stanza with missing or invalid 'from' address"); |
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230 session:close{ |
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231 condition = "invalid-from"; |
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232 text = "Component tried to send from address <"..(from or "< [missing 'from' attribute] >") |
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233 .."> which is not in domain <"..tostring(session.host)..">"; |
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234 }; |
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235 return; |
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236 end |
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237 elseif not from then |
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238 stanza.attr.from = session.host; |
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239 end |
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240 if not stanza.attr.to then |
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241 session.log("warn", "Rejecting stanza with no 'to' address"); |
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242 session.send(st.error_reply(stanza, "modify", "bad-request", "Components MUST specify a 'to' address on stanzas")); |
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243 return; |
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244 end |
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245 end |
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246 |
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247 if stanza then |
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248 return xpcall(core_process_stanza, handleerr, session, stanza); |
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249 end |
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250 end |
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251 |
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252 --- Closing a component connection |
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253 local stream_xmlns_attr = {xmlns='urn:ietf:params:xml:ns:xmpp-streams'}; |
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254 local default_stream_attr = { ["xmlns:stream"] = "http://etherx.jabber.org/streams", xmlns = stream_callbacks.default_ns, version = "1.0", id = "" }; |
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255 local function session_close(session, reason) |
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256 if session.destroyed then return; end |
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257 if session.conn then |
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258 if session.notopen then |
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259 session.send("<?xml version='1.0'?>"); |
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260 session.send(st.stanza("stream:stream", default_stream_attr):top_tag()); |
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261 end |
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262 if reason then |
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263 if type(reason) == "string" then -- assume stream error |
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264 module:log("info", "Disconnecting component, <stream:error> is: %s", reason); |
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265 session.send(st.stanza("stream:error"):tag(reason, {xmlns = 'urn:ietf:params:xml:ns:xmpp-streams' })); |
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266 elseif st.is_stanza(reason) then |
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267 module:log("info", "Disconnecting component, <stream:error> is: %s", reason); |
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268 session.send(reason); |
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269 elseif type(reason) == "table" then |
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270 if reason.condition then |
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271 local stanza = st.stanza("stream:error"):tag(reason.condition, stream_xmlns_attr):up(); |
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272 if reason.text then |
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273 stanza:tag("text", stream_xmlns_attr):text(reason.text):up(); |
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274 end |
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275 if reason.extra then |
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276 stanza:add_child(reason.extra); |
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277 end |
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278 module:log("info", "Disconnecting component, <stream:error> is: %s", stanza); |
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279 session.send(stanza); |
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280 end |
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281 end |
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282 end |
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283 session.send("</stream:stream>"); |
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284 session.conn:close(); |
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285 listener.ondisconnect(session.conn, "stream error"); |
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286 end |
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287 end |
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288 |
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289 --- Component connlistener |
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290 |
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291 function listener.onconnect(conn) |
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292 local _send = conn.write; |
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293 local session = { type = "component_unauthed", conn = conn, send = function (data) return _send(conn, tostring(data)); end }; |
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294 |
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295 -- Logging functions -- |
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296 local conn_name = "jcp"..tostring(session):match("[a-f0-9]+$"); |
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297 session.log = logger.init(conn_name); |
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298 session.close = session_close; |
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299 |
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300 if opt_keepalives then |
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301 conn:setoption("keepalive", opt_keepalives); |
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302 end |
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303 |
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304 session.log("info", "Incoming Jabber component connection"); |
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305 |
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306 local stream = new_xmpp_stream(session, stream_callbacks, stanza_size_limit); |
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307 session.stream = stream; |
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308 |
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309 session.notopen = true; |
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310 |
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311 function session.reset_stream() |
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312 session.notopen = true; |
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313 session.stream:reset(); |
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314 end |
3531
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315 |
7301
995777582044
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316 function session.data(_, data) |
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317 local ok, err = stream:feed(data); |
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318 if ok then return; end |
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319 log("debug", "Received invalid XML (%s) %d bytes: %q", err, #data, data:sub(1, 300)); |
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320 session:close("not-well-formed"); |
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321 end |
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322 |
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323 session.dispatch_stanza = stream_callbacks.handlestanza; |
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324 |
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325 sessions[conn] = session; |
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326 end |
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327 function listener.onincoming(conn, data) |
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328 local session = sessions[conn]; |
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329 session.data(conn, data); |
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330 end |
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331 function listener.ondisconnect(conn, err) |
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332 local session = sessions[conn]; |
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333 if session then |
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334 (session.log or log)("info", "component disconnected: %s (%s)", session.host, err); |
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335 if session.host then |
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336 module:context(session.host):fire_event("component-disconnected", { session = session, reason = err }); |
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337 end |
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338 if session.on_destroy then session:on_destroy(err); end |
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339 sessions[conn] = nil; |
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340 for k in pairs(session) do |
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341 if k ~= "log" and k ~= "close" then |
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342 session[k] = nil; |
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343 end |
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344 end |
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345 session.destroyed = true; |
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346 end |
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347 end |
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348 |
6380
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349 function listener.ondetach(conn) |
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350 sessions[conn] = nil; |
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351 end |
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352 |
7886
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353 function listener.onreadtimeout(conn) |
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354 local session = sessions[conn]; |
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355 if session then |
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356 return (hosts[session.host] or prosody).events.fire_event("component-read-timeout", { session = session }); |
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357 end |
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358 end |
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|
359 |
5120
bcabea740c00
mod_{admin_telnet,c2s,component,http,net_multiplex,s2s}: Use module:provides() instead of module:add_item().
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diff
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|
360 module:provides("net", { |
4650
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361 name = "component"; |
5298
6d34ed9fce69
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|
362 private = true; |
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363 listener = listener; |
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364 default_port = 5347; |
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|
365 multiplex = { |
5316
310c7e5bb906
mod_component: Look for the correct xmlns (thanks NebuK)
Kim Alvefur <zash@zash.se>
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diff
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|
366 pattern = "^<.*:stream.*%sxmlns%s*=%s*(['\"])jabber:component:accept%1.*>"; |
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367 }; |
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368 }); |