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core/hostmanager.lua @ 10727:fa2a89132dfb
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author | Kim Alvefur <zash@zash.se> |
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date | Sun, 19 Apr 2020 13:04:12 +0200 |
parent | 8561:7b9ffddc4276 |
child | 11505:61d38c4b749d |
rev | line source |
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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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8 |
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9 local configmanager = require "core.configmanager"; |
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10 local modulemanager = require "core.modulemanager"; |
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12 local disco_items = require "util.multitable".new(); |
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13 local NULL = {}; |
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15 local log = require "util.logger".init("hostmanager"); |
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16 |
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17 local hosts = prosody.hosts; |
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18 local prosody_events = prosody.events; |
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19 if not _G.prosody.incoming_s2s then |
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20 require "core.s2smanager"; |
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21 end |
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22 local incoming_s2s = _G.prosody.incoming_s2s; |
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23 local core_route_stanza = _G.prosody.core_route_stanza; |
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24 |
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25 local pairs, rawget = pairs, rawget; |
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26 local tostring, type = tostring, type; |
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27 local setmetatable = setmetatable; |
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28 |
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29 local _ENV = nil; |
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30 -- luacheck: std none |
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31 |
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32 local host_mt = { } |
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33 function host_mt:__tostring() |
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34 if self.type == "component" then |
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35 local typ = configmanager.get(self.host, "component_module"); |
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36 if typ == "component" then |
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37 return ("Component %q"):format(self.host); |
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38 end |
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39 return ("Component %q %q"):format(self.host, typ); |
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40 elseif self.type == "local" then |
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41 return ("VirtualHost %q"):format(self.host); |
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42 end |
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43 end |
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44 |
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45 local hosts_loaded_once; |
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46 |
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47 local activate, deactivate; |
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48 |
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49 local function load_enabled_hosts(config) |
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50 local defined_hosts = config or configmanager.getconfig(); |
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51 local activated_any_host; |
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52 |
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53 for host, host_config in pairs(defined_hosts) do |
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54 if host ~= "*" and host_config.enabled ~= false then |
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55 if not host_config.component_module then |
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56 activated_any_host = true; |
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57 end |
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58 activate(host, host_config); |
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59 end |
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60 end |
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61 |
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62 if not activated_any_host then |
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63 log("error", "No active VirtualHost entries in the config file. This may cause unexpected behaviour as no modules will be loaded."); |
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64 end |
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65 |
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66 prosody_events.fire_event("hosts-activated", defined_hosts); |
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67 hosts_loaded_once = true; |
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68 end |
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69 |
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70 prosody_events.add_handler("server-starting", load_enabled_hosts); |
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71 |
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72 local function host_send(stanza) |
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73 core_route_stanza(nil, stanza); |
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74 end |
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75 |
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76 function activate(host, host_config) |
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77 if rawget(hosts, host) then return nil, "The host "..host.." is already activated"; end |
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78 host_config = host_config or configmanager.getconfig()[host]; |
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79 if not host_config then return nil, "Couldn't find the host "..tostring(host).." defined in the current config"; end |
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80 local host_session = { |
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81 host = host; |
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82 s2sout = {}; |
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83 events = events_new(); |
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84 send = host_send; |
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85 modules = {}; |
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86 }; |
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87 function host_session:close(reason) |
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88 log("debug", "Attempt to close host session %s with reason: %s", self.host, reason); |
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89 end |
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90 setmetatable(host_session, host_mt); |
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91 if not host_config.component_module then -- host |
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92 host_session.type = "local"; |
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93 host_session.sessions = {}; |
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94 else -- component |
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95 host_session.type = "component"; |
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96 end |
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97 hosts[host] = host_session; |
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98 if not host_config.disco_hidden and not host:match("[@/]") then |
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99 disco_items:set(host:match("%.(.*)") or "*", host, host_config.name or true); |
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100 end |
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101 for option_name in pairs(host_config) do |
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102 if option_name:match("_ports$") or option_name:match("_interface$") then |
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103 log("warn", "%s: Option '%s' has no effect for virtual hosts - put it in the server-wide section instead", host, option_name); |
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104 end |
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105 end |
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106 |
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107 log((hosts_loaded_once and "info") or "debug", "Activated host: %s", host); |
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108 prosody_events.fire_event("host-activated", host); |
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109 return true; |
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110 end |
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111 |
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112 function deactivate(host, reason) |
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113 local host_session = hosts[host]; |
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114 if not host_session then return nil, "The host "..tostring(host).." is not activated"; end |
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115 log("info", "Deactivating host: %s", host); |
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116 prosody_events.fire_event("host-deactivating", { host = host, host_session = host_session, reason = reason }); |
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117 |
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118 if type(reason) ~= "table" then |
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119 reason = { condition = "host-gone", text = tostring(reason or "This server has stopped serving "..host) }; |
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120 end |
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121 |
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122 -- Disconnect local users, s2s connections |
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123 -- TODO: These should move to mod_c2s and mod_s2s (how do they know they're being unloaded and not reloaded?) |
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124 if host_session.sessions then |
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125 for username, user in pairs(host_session.sessions) do |
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126 for resource, session in pairs(user.sessions) do |
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127 log("debug", "Closing connection for %s@%s/%s", username, host, resource); |
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128 session:close(reason); |
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129 end |
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130 end |
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131 end |
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132 if host_session.s2sout then |
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133 for remotehost, session in pairs(host_session.s2sout) do |
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134 if session.close then |
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135 log("debug", "Closing outgoing connection to %s", remotehost); |
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136 if session.srv_hosts then session.srv_hosts = nil; end |
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137 session:close(reason); |
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138 end |
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139 end |
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140 end |
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141 for remote_session in pairs(incoming_s2s) do |
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142 if remote_session.to_host == host then |
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143 log("debug", "Closing incoming connection from %s", remote_session.from_host or "<unknown>"); |
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144 remote_session:close(reason); |
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145 end |
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146 end |
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147 |
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148 -- TODO: This should be done in modulemanager |
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149 if host_session.modules then |
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150 for module in pairs(host_session.modules) do |
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151 modulemanager.unload(host, module); |
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152 end |
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153 end |
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154 |
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155 hosts[host] = nil; |
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156 if not host:match("[@/]") then |
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157 disco_items:remove(host:match("%.(.*)") or "*", host); |
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158 end |
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159 prosody_events.fire_event("host-deactivated", host); |
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160 log("info", "Deactivated host: %s", host); |
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161 return true; |
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162 end |
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163 |
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164 local function get_children(host) |
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165 return disco_items:get(host) or NULL; |
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166 end |
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167 |
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168 return { |
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169 activate = activate; |
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170 deactivate = deactivate; |
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171 get_children = get_children; |
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172 } |