Mercurial > prosody-modules
annotate mod_admin_message/mod_admin_message.lua @ 4670:1b81b7269858
mod_http_oauth2: Gracefully handle cache write failure
Would previously have thrown an error and probably returned a traceback.
This would only happen if a *lot* of authorization codes were requested
in a short interval.
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 02 Sep 2021 23:06:58 +0200 |
parents | 65082d91950e |
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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); |