prosody-modules
94805a7e7b30
mod_muc_http_auth/mod_muc_http_auth.lua

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mod_muc_http_auth/mod_muc_http_auth.lua @ 4421:94805a7e7b30

mod_invites: rework CLI parsing to support groups To make this sensible, the code had to move from rather simple parsing to something which looks more like getopt or your typical shell script.
author Jonas Schäfer <jonas@wielicki.name>
date Sun, 31 Jan 2021 19:16:36 +0100
parent 4322:9606e7a63a69
child 4695:4b3f054666e6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 local wait_for = require "util.async".wait_for;
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2 local http = require "net.http";
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3 local json = require "util.json";
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4 local st = require "util.stanza";
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5 local jid_node = require "util.jid".node;
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6 local jid_bare = require "util.jid".bare;
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7
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8 local authorization_url = module:get_option("muc_http_auth_url", "")
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9 local enabled_for = module:get_option_set("muc_http_auth_enabled_for", nil)
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10 local disabled_for = module:get_option_set("muc_http_auth_disabled_for", nil)
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11 local insecure = module:get_option("muc_http_auth_insecure", false) --For development purposes
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12 local authorize_registration = module:get_option("muc_http_auth_authorize_registration", false)
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13 local authorization_header = module:get_option("muc_http_auth_authorization_header", nil)
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14
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15 local options = {method="GET", insecure=insecure}
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16 if authorization_header then
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17 options.headers = {["Authorization"] = authorization_header};
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18 end
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19
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20 local verbs = {presence='join', iq='register'};
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21
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22 local function must_be_authorized(room_node)
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23 -- If none of these is set, all rooms need authorization
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24 if not enabled_for and not disabled_for then return true; end
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25
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26 if enabled_for then return enabled_for:contains(room_node); end
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27 if disabled_for then return not disabled_for:contains(room_node); end
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28 end
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29
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30 local function handle_success(response)
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31 local body = json.decode(response.body or "") or {}
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32 response = {
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33 err = body.error,
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34 allowed = body.allowed,
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35 code = response.code
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36 }
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37 return {response=response, err=response.err};
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38 end
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39
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40 local function handle_error(err)
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41 return {err=err};
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42 end
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43
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44 local function handle_presence(event)
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45 local stanza = event.stanza;
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46 if stanza.name ~= "iq" and stanza.name ~= "presence" or stanza.attr.type == "unavailable" then return; end
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47
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48 local room, origin = event.room, event.origin;
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49 if (not room) or (not origin) then return; end
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50
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51 if not must_be_authorized(jid_node(room.jid)) then return; end
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52
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53 local user_bare_jid = jid_bare(stanza.attr.from);
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54 local url = authorization_url .. "?userJID=" .. user_bare_jid .."&mucJID=" .. room.jid;
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55
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56 local result = wait_for(http.request(url, options):next(handle_success, handle_error));
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57 local response, err = result.response, result.err;
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58
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59 local verb = verbs[stanza.name];
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60 if not (response and response.allowed) then
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61 -- User is not authorized to join this room
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62 err = (response or {}).err or err
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63 module:log("debug", user_bare_jid .. " is not authorized to " ..verb.. ": " .. room.jid .. " Error: " .. tostring(err));
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64 origin.send(st.error_reply(stanza, "auth", "not-authorized", nil, module.host));
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65 return true;
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66 end
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67
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68 module:log("debug", user_bare_jid .. " is authorized to " .. verb .. ": " .. room.jid);
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69 return;
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70 end
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71
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72 if authorize_registration then
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73 module:hook("muc-register-iq", handle_presence);
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74 end
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75
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76 module:hook("muc-occupant-pre-join", handle_presence);