Mercurial > prosody-hg

annotate plugins/mod_admin_socket.lua @ 11609:6dcc45a2e3bc

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mod_s2s: Bail if connection is destroyed after attempting to open stream Fixes "attempt to compare number with nil" because `session.version` has been cleared by s2smanager.destroy_session. This can happen with the server_epoll setting opportunistic_writes enabled, which means that it can notice that the connection failed at this point, after which it triggers the whole chain of events that leads to session destruction and "cleaning" most of the session fields.
author Kim Alvefur <zash@zash.se>
date Wed, 16 Jun 2021 23:53:00 +0200
parents 5265f7fe11dd
children 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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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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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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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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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