prosody
06453c564141
plugins/mod_admin_socket.lua

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plugins/mod_admin_socket.lua @ 13014:06453c564141

util.startup: Add prosody.started promise to easily execute code after startup To avoid a race where server-started fires before the promise function body is run (on next tick), I moved server-started to fire on the next tick, which seems sensible anyway. Errors are logged, I'm not sure if we ought to be doing something more here. I'm sure we'll find out.
author Matthew Wild <mwild1@gmail.com>
date Sat, 01 Apr 2023 11:56:38 +0100
parent 12977:74b9e05af71e
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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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18
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19 local server = require "prosody.net.server";
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20
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21 local adminstream = require "prosody.util.adminstream";
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22 local st = require "prosody.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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25
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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