prosody
ba409c67353b
plugins/mod_admin_socket.lua

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plugins/mod_admin_socket.lua @ 12974:ba409c67353b

net: Prefix module imports with prosody namespace
author Kim Alvefur <zash@zash.se>
date Fri, 17 Mar 2023 16:23:12 +0100
parent 12888:b8504b71735d
child 12977:74b9e05af71e
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rev   line source
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70ac7d23673d mod_admin_socket, util.adminstream: New module to manage a local unix domain socket for admin functionality
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1 module:set_global();
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2
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3 local have_unix, unix = pcall(require, "socket.unix");
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4
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5 if have_unix and type(unix) == "function" then
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6 -- COMPAT #1717
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7 -- Before the introduction of datagram support, only the stream socket
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8 -- constructor was exported instead of a module table. Due to the lack of a
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9 -- proper release of LuaSocket, distros have settled on shipping either the
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10 -- last RC tag or some commit since then.
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11 -- Here we accommodate both variants.
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12 unix = { stream = unix };
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13 end
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14 if not have_unix or type(unix) ~= "table" then
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15 module:log_status("error", "LuaSocket unix socket support not available or incompatible, ensure it is up to date");
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16 return;
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17 end
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19 local server = require "net.server";
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20
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21 local adminstream = require "util.adminstream";
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22 local st = require "util.stanza";
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23
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24 local socket_path = module:get_option_path("admin_socket", "prosody.sock", "data");
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26 local sessions = module:shared("sessions");
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27
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28 local function fire_admin_event(session, stanza)
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29 local event_data = {
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30 origin = session, stanza = stanza;
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31 };
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32 local event_name;
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33 if stanza.attr.xmlns then
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34 event_name = "admin/"..stanza.attr.xmlns..":"..stanza.name;
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35 else
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36 event_name = "admin/"..stanza.name;
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37 end
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38 module:log("debug", "Firing %s", event_name);
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39 local ret = module:fire_event(event_name, event_data);
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40 if ret == nil then
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41 session.send(st.stanza("repl-result", { type = "error" }):text("No module handled this query. Is mod_admin_shell enabled?"));
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42 end
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43 return ret;
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44 end
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45
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46 module:hook("server-stopping", function ()
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47 for _, session in pairs(sessions) do
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48 session:close("system-shutdown");
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49 end
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50 os.remove(socket_path);
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51 end);
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52
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53 --- Unix domain socket management
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54
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55 local conn, sock;
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56
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57 local listeners = adminstream.server(sessions, fire_admin_event).listeners;
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58
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59 local function accept_connection()
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60 module:log("debug", "accepting...");
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61 local client = sock:accept();
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62 if not client then return; end
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63 server.wrapclient(client, "unix", 0, listeners, "*a");
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64 end
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65
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66 function module.load()
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67 sock = unix.stream();
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68 sock:settimeout(0);
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69 os.remove(socket_path);
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70 local ok, err = sock:bind(socket_path);
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71 if not ok then
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72 module:log_status("error", "Unable to bind admin socket %s: %s", socket_path, err);
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73 return;
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74 end
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75 local ok, err = sock:listen();
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76 if not ok then
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77 module:log_status("error", "Unable to listen on admin socket %s: %s", socket_path, err);
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78 return;
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79 end
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80 if server.wrapserver then
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81 conn = server.wrapserver(sock, socket_path, 0, listeners);
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82 else
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83 conn = server.watchfd(sock:getfd(), accept_connection);
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84 end
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85 end
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86
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87 function module.unload()
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88 if conn then
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89 conn:close();
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90 end
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91 if sock then
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92 sock:close();
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93 end
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94 os.remove(socket_path);
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95 end