prosody
7a3da1acace1
plugins/mod_admin_telnet.lua

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plugins/mod_admin_telnet.lua @ 12426:7a3da1acace1

net.connect: Improve logging on connection attempt failure
author Matthew Wild <mwild1@gmail.com>
date Mon, 21 Mar 2022 11:15:30 +0000
parent 10859:8de0057b4279
child 12977:74b9e05af71e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1523
841d61be198f Remove version number from copyright headers
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diff changeset
1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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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.
519
cccd610a0ef9 Insert copyright/license headers
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7 --
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f40b0cd41a87 mod_admin_telnet: Remove or rename various unused arguments and variables [luacheck]
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8 -- luacheck: ignore 212/self
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9
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403b56b78018 mod_posix, mod_bosh, mod_admin_telnet: Use module:set_global()
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10 module:set_global();
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11 module:depends("admin_shell");
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12
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13 local console_listener = { default_port = 5582; default_mode = "*a"; interface = "127.0.0.1" };
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14
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15 local async = require "util.async";
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16 local st = require "util.stanza";
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17
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18 local def_env = module:shared("admin_shell/env");
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19 local default_env_mt = { __index = def_env };
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20
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21 local function printbanner(session)
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22 local option = module:get_option_string("console_banner", "full");
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23 if option == "full" or option == "graphic" then
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24 session.print [[
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25 ____ \ / _
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26 | _ \ _ __ ___ ___ _-_ __| |_ _
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27 | |_) | '__/ _ \/ __|/ _ \ / _` | | | |
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28 | __/| | | (_) \__ \ |_| | (_| | |_| |
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29 |_| |_| \___/|___/\___/ \__,_|\__, |
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30 A study in simplicity |___/
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31
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32 ]]
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33 end
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34 if option == "short" or option == "full" then
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35 session.print("Welcome to the Prosody administration console. For a list of commands, type: help");
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36 session.print("You may find more help on using this console in our online documentation at ");
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37 session.print("https://prosody.im/doc/console\n");
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38 end
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39 if option ~= "short" and option ~= "full" and option ~= "graphic" then
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40 session.print(option);
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41 end
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42 end
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43
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44 console = {};
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45
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46 local runner_callbacks = {};
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47
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48 function runner_callbacks:ready()
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49 self.data.conn:resume();
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50 end
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51
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52 function runner_callbacks:waiting()
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53 self.data.conn:pause();
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54 end
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55
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56 function runner_callbacks:error(err)
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57 module:log("error", "Traceback[telnet]: %s", err);
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58
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59 self.data.print("Fatal error while running command, it did not complete");
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60 self.data.print("Error: "..tostring(err));
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61 end
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62
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63
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64 function console:new_session(conn)
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65 local w = function(s) conn:write(s:gsub("\n", "\r\n")); end;
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66 local session = { conn = conn;
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67 send = function (t)
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68 if st.is_stanza(t) and (t.name == "repl-result" or t.name == "repl-output") then
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69 t = "| "..t:get_text().."\n";
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70 end
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71 w(tostring(t));
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72 end;
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73 print = function (...)
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74 local t = {};
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75 for i=1,select("#", ...) do
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76 t[i] = tostring(select(i, ...));
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77 end
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78 w("| "..table.concat(t, "\t").."\n");
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79 end;
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80 serialize = tostring;
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81 disconnect = function () conn:close(); end;
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82 };
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83 session.env = setmetatable({}, default_env_mt);
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84
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85 session.thread = async.runner(function (line)
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86 console:process_line(session, line);
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87 session.send(string.char(0));
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88 end, runner_callbacks, session);
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89
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90 -- Load up environment with helper objects
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91 for name, t in pairs(def_env) do
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92 if type(t) == "table" then
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93 session.env[name] = setmetatable({ session = session }, { __index = t });
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94 end
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95 end
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96
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97 session.env.output:configure();
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98
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99 return session;
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100 end
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101
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102 function console:process_line(session, line)
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103 line = line:gsub("\r?\n$", "");
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104 if line == "bye" or line == "quit" or line == "exit" or line:byte() == 4 then
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105 session.print("See you!");
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106 session:disconnect();
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107 return;
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108 end
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109 return module:fire_event("admin/repl-input", { origin = session, stanza = st.stanza("repl-input"):text(line) });
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110 end
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111
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112 local sessions = {};
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113
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114 function module.save()
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115 return { sessions = sessions }
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116 end
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117
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118 function module.restore(data)
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119 if data.sessions then
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120 for conn in pairs(data.sessions) do
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121 conn:setlistener(console_listener);
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122 local session = console:new_session(conn);
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123 sessions[conn] = session;
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124 end
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125 end
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126 end
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127
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128 function console_listener.onconnect(conn)
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129 -- Handle new connection
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130 local session = console:new_session(conn);
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131 sessions[conn] = session;
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132 printbanner(session);
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133 session.send(string.char(0));
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7cbae2d16fd6 mod_console: Make global
Matthew Wild <mwild1@gmail.com>
parents: 712
diff changeset
134 end
7cbae2d16fd6 mod_console: Make global
Matthew Wild <mwild1@gmail.com>
parents: 712
diff changeset
135
2145
daeb6ebf304c mod_console: Update for new net.server API
Matthew Wild <mwild1@gmail.com>
parents: 2087
diff changeset
136 function console_listener.onincoming(conn, data)
736
7cbae2d16fd6 mod_console: Make global
Matthew Wild <mwild1@gmail.com>
parents: 712
diff changeset
137 local session = sessions[conn];
1317
f6e56a555c37 mod_console: Allow running code in the global environment by prefixing with '>'
Matthew Wild <mwild1@gmail.com>
parents: 1316
diff changeset
138
4989
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
139 local partial = session.partial_data;
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
140 if partial then
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
141 data = partial..data;
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
142 end
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
143
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
144 for line in data:gmatch("[^\n]*[\n\004]") do
5278
f79be67e5666 mod_admin_telnet: Stop processing lines when session is closed
Kim Alvefur <zash@zash.se>
parents: 5270
diff changeset
145 if session.closed then return end
9735
2d8ca54ecbc6 mod_admin_telnet: Enable async processing using util.async
Kim Alvefur <zash@zash.se>
parents: 9734
diff changeset
146 session.thread:run(line);
4989
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
147 end
573123ff2ab0 mod_admin_telnet: Always handle commands terminated by line feeds - ensures consistency even when packets are joined or split on the network
Matthew Wild <mwild1@gmail.com>
parents: 4979
diff changeset
148 session.partial_data = data:match("[^\n]+$");
736
7cbae2d16fd6 mod_console: Make global
Matthew Wild <mwild1@gmail.com>
parents: 712
diff changeset
149 end
7cbae2d16fd6 mod_console: Make global
Matthew Wild <mwild1@gmail.com>
parents: 712
diff changeset
150
6169
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
151 function console_listener.onreadtimeout(conn)
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
152 local session = sessions[conn];
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
153 if session then
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
154 session.send("\0");
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
155 return true;
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
156 end
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
157 end
cb15eac75b50 mod_admin_telnet: Send NUL byte as keepalive on read timeouts
Kim Alvefur <zash@zash.se>
parents: 6067
diff changeset
158
9404
f40b0cd41a87 mod_admin_telnet: Remove or rename various unused arguments and variables [luacheck]
Kim Alvefur <zash@zash.se>
parents: 9403
diff changeset
159 function console_listener.ondisconnect(conn, err) -- luacheck: ignore 212/err
2054
a43aea9b0bd1 mod_console: Added proper cleanup for disconnected console sessions.
Waqas Hussain <waqas20@gmail.com>
parents: 2010
diff changeset
160 local session = sessions[conn];
a43aea9b0bd1 mod_console: Added proper cleanup for disconnected console sessions.
Waqas Hussain <waqas20@gmail.com>
parents: 2010
diff changeset
161 if session then
a43aea9b0bd1 mod_console: Added proper cleanup for disconnected console sessions.
Waqas Hussain <waqas20@gmail.com>
parents: 2010
diff changeset
162 session.disconnect();
a43aea9b0bd1 mod_console: Added proper cleanup for disconnected console sessions.
Waqas Hussain <waqas20@gmail.com>
parents: 2010
diff changeset
163 sessions[conn] = nil;
a43aea9b0bd1 mod_console: Added proper cleanup for disconnected console sessions.
Waqas Hussain <waqas20@gmail.com>
parents: 2010
diff changeset
164 end
736
7cbae2d16fd6 mod_console: Make global
Matthew Wild <mwild1@gmail.com>
parents: 712
diff changeset
165 end
7cbae2d16fd6 mod_console: Make global
Matthew Wild <mwild1@gmail.com>
parents: 712
diff changeset
166
6380
4220ffb87b22 net.http, net.http.server, mod_c2s, mod_s2s, mod_component, mod_admin_telnet, mod_net_multiplex: Add ondetach to release connection from 'sessions' table (or equivalent)
Matthew Wild <mwild1@gmail.com>
parents: 6311
diff changeset
167 function console_listener.ondetach(conn)
4220ffb87b22 net.http, net.http.server, mod_c2s, mod_s2s, mod_component, mod_admin_telnet, mod_net_multiplex: Add ondetach to release connection from 'sessions' table (or equivalent)
Matthew Wild <mwild1@gmail.com>
parents: 6311
diff changeset
168 sessions[conn] = nil;
4220ffb87b22 net.http, net.http.server, mod_c2s, mod_s2s, mod_component, mod_admin_telnet, mod_net_multiplex: Add ondetach to release connection from 'sessions' table (or equivalent)
Matthew Wild <mwild1@gmail.com>
parents: 6311
diff changeset
169 end
4220ffb87b22 net.http, net.http.server, mod_c2s, mod_s2s, mod_component, mod_admin_telnet, mod_net_multiplex: Add ondetach to release connection from 'sessions' table (or equivalent)
Matthew Wild <mwild1@gmail.com>
parents: 6311
diff changeset
170
5120
bcabea740c00 mod_{admin_telnet,c2s,component,http,net_multiplex,s2s}: Use module:provides() instead of module:add_item().
Waqas Hussain <waqas20@gmail.com>
parents: 5030
diff changeset
171 module:provides("net", {
4674
f44726a910a0 mod_admin_telnet: Add initial port:list() and port:close() commands
Matthew Wild <mwild1@gmail.com>
parents: 4647
diff changeset
172 name = "console";
4550
1c41e4a846a2 mod_admin_telnet: Port to portmanager
Matthew Wild <mwild1@gmail.com>
parents: 4540
diff changeset
173 listener = console_listener;
1c41e4a846a2 mod_admin_telnet: Port to portmanager
Matthew Wild <mwild1@gmail.com>
parents: 4540
diff changeset
174 default_port = 5582;
4571
32d532b95dc7 mod_admin_telnet: make service private.
Marco Cirillo <maranda@lightwitch.org>
parents: 4550
diff changeset
175 private = true;
4550
1c41e4a846a2 mod_admin_telnet: Port to portmanager
Matthew Wild <mwild1@gmail.com>
parents: 4540
diff changeset
176 });