Mercurial > prosody-modules

annotate mod_admin_message/mod_admin_message.lua @ 5401:c8d04ac200fc

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mod_http_oauth2: Reject loopback URIs as client_uri This really should be a proper website with info, https://localhost is not good enough. Ideally we'd validate that it's got proper DNS and is actually reachable, but triggering HTTP or even DNS lookups seems like it would carry abuse potential that would best to avoid.
author Kim Alvefur <zash@zash.se>
date Tue, 02 May 2023 16:20:55 +0200
parents 65082d91950e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Mikael Berthe <mikael@lilotux.net>
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1 -- Prosody IM
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2 --
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3 -- mod_admin_message -- Console-over-XMPP implementation.
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4 --
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5 -- This module depends on Prosody's admin_telnet module
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6 --
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7 -- Copyright (C) 2008-2010 Matthew Wild
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8 -- Copyright (C) 2008-2010 Waqas Hussain
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9 -- Copyright (C) 2012-2013 Mikael Berthe
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10 --
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11 -- This project is MIT/X11 licensed. Please see the
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12 -- COPYING file in the source package for more information.
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13 --
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14
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15 local st = require "util.stanza";
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16 local um_is_admin = require "core.usermanager".is_admin;
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17
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18 local admin_telnet = module:depends("admin_telnet");
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19 local telnet_def_env = module:shared("/*/admin_telnet/env");
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20 local telnet_commands = module:shared("/*/admin_telnet/commands");
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21 local default_env_mt = { __index = telnet_def_env };
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22
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23 local host = module.host;
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24
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25 -- Create our own session. print() will store the results in a text
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26 -- string. send(), quit(), disconnect() are no-op.
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27 local function new_session ()
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28 local session = {
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29 send = function () end;
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30 quit = function () end;
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31 disconnect = function () end;
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32 };
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33
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34 session.print = function (...)
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35 local t = {};
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36 for i=1,select("#", ...) do
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37 t[i] = tostring(select(i, ...));
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38 end
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39 local text = "| "..table.concat(t, "\t");
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40 if session.fulltext then
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41 session.fulltext = session.fulltext .. "\n" .. text;
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42 else
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43 session.fulltext = text;
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44 end
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45 end
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46
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47 session.env = setmetatable({}, default_env_mt);
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48
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49 -- Load up environment with helper objects
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50 for name, t in pairs(telnet_def_env) do
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51 if type(t) == "table" then
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52 session.env[name] = setmetatable({ session = session },
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53 { __index = t });
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54 end
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55 end
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56
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57 return session;
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58 end
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59
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60 local function on_message(event)
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61 -- Check the type of the incoming stanza to avoid loops:
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62 if event.stanza.attr.type == "error" then
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63 return; -- We do not want to reply to these, so leave.
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64 end
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65
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66 local userjid = event.stanza.attr.from;
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67 local bodytag = event.stanza:get_child("body");
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68 local body = bodytag and bodytag:get_text() or "";
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69 if not body or body == "" then
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70 -- We do not reply to empty messages (chatstates, etc.)
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71 return true;
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72 end
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73
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74 -- Check the requester is an admin user
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75 if not um_is_admin(userjid, module.host) then
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76 module:log("info", "Ignored request from non-admin: %s",
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77 userjid);
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78 return;
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79 end
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80
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81 -- Create a session in order to use an admin_telnet-like environment
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82 local session = new_session();
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83
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84 -- Process the message using admin_telnet's onincoming function
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85 admin_telnet.console:process_line(session, body.."\n");
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86
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87 -- Strip trailing blank line
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88 session.fulltext = tostring(session.fulltext):gsub("\n|%s*$", "")
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89
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90 -- Send the reply stanza
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91 local reply_stanza = st.message({ from = host, to = userjid,
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92 type = "chat" }, session.fulltext);
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93 module:send(reply_stanza);
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94
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95 return true;
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96 end
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97
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98 local function on_presence(event)
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99
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100 local send_presence = false;
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101
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102 local userjid = event.stanza.attr.from;
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103
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104 -- Check the requester is an admin user
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105 if not um_is_admin(userjid, module.host) then
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106 module:log("info", "Ignored presence from non-admin: %s",
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107 userjid);
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108 return;
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109 end
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110
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111 if (event.stanza.attr.type == "subscribe") then
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112 module:log("info", "Subscription request from %s", userjid);
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113 send_presence = true;
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114 -- Send a subscription ack
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115 local presence_stanza = st.presence({ from = host,
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116 to = userjid, type = "subscribed",
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117 id = event.stanza.attr.id });
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118 module:send(presence_stanza);
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119 elseif (event.stanza.attr.type == "probe") then
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120 send_presence = true;
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121 elseif (event.stanza.attr.type == "unsubscribe") then
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122 -- For information only...
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123 module:log("info", "Unsubscription request from %s", userjid);
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124 end
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125
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126 if (send_presence == true) then
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127 -- Send a presence stanza
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128 module:send(st.presence({ from = host, to = userjid }));
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129 end
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130 return true;
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131 end
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132
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133 module:hook("message/bare", on_message);
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134 module:hook("presence/bare", on_presence);