prosody
f7275c2c58fa
plugins/mod_admin_socket.lua

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plugins/mod_admin_socket.lua @ 11517:f7275c2c58fa

mod_c2s: Fix traceback if session was destroyed while opening stream (thanks Ge0rG) Could happen with the 'opportunistic_writes' setting, since then the stream opening is written directly to the socket, which can in turn trigger session destruction if the socket somehow got closed just after the other sent their stream header. Error happens later when it tries to `hosts[session.host == nil].events`
author Kim Alvefur <zash@zash.se>
date Wed, 14 Apr 2021 16:02:47 +0200
parent 10866:5265f7fe11dd
child 12392:5373724e08a5
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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 not have_unix or type(unix) ~= "table" then
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6 module:log_status("error", "LuaSocket unix socket support not available or incompatible, ensure it is up to date");
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7 return;
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8 end
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9
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10 local server = require "net.server";
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11
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12 local adminstream = require "util.adminstream";
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13
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14 local socket_path = module:get_option_path("admin_socket", "prosody.sock", "data");
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16 local sessions = module:shared("sessions");
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17
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18 local function fire_admin_event(session, stanza)
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19 local event_data = {
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20 origin = session, stanza = stanza;
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21 };
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22 local event_name;
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23 if stanza.attr.xmlns then
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24 event_name = "admin/"..stanza.attr.xmlns..":"..stanza.name;
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25 else
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26 event_name = "admin/"..stanza.name;
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27 end
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28 module:log("debug", "Firing %s", event_name);
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29 return module:fire_event(event_name, event_data);
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30 end
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32 module:hook("server-stopping", function ()
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33 for _, session in pairs(sessions) do
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34 session:close("system-shutdown");
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35 end
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36 os.remove(socket_path);
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37 end);
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38
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39 --- Unix domain socket management
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40
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41 local conn, sock;
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42
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43 local listeners = adminstream.server(sessions, fire_admin_event).listeners;
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44
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45 local function accept_connection()
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46 module:log("debug", "accepting...");
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47 local client = sock:accept();
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48 if not client then return; end
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49 server.wrapclient(client, "unix", 0, listeners, "*a");
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50 end
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51
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52 function module.load()
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53 sock = unix.stream();
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54 sock:settimeout(0);
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55 os.remove(socket_path);
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56 assert(sock:bind(socket_path));
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57 assert(sock:listen());
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58 if server.wrapserver then
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59 conn = server.wrapserver(sock, socket_path, 0, listeners);
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60 else
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61 conn = server.watchfd(sock:getfd(), accept_connection);
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62 end
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63 end
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64
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65 function module.unload()
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66 if conn then
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67 conn:close();
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68 end
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69 if sock then
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70 sock:close();
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71 end
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72 os.remove(socket_path);
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73 end