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annotate mod_muc_http_auth/mod_muc_http_auth.lua @ 4515:2e33eeafe962

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mod_muc_markers: Prevent any markers from reaching the archive, even if untracked Original intention was to leave alone things that this module isn't handling. However markers in archives are just problematic without more advanced logic about what is markable and what is not. It also requires a more advanced query in mod_muc_rai to determine the latest markable message instead of the latest archived message. I'd rather keep the "is archivable" and "is markable" definition the same for simplicity. I don't want to introduce yet another set of rules for no reason. No markers in MAM.
author Matthew Wild <mwild1@gmail.com>
date Mon, 22 Mar 2021 15:55:02 +0000
parents 9606e7a63a69
children 4b3f054666e6
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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);