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annotate mod_auto_moved/mod_auto_moved.lua @ 5418:f2c7bb3af600

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mod_http_oauth2: Add role selector to consent page List includes all roles available to the user, if more than one. Defaults to either the first role in the scope string or the users primary role. Earlier draft listed all roles, but having options that can't be selected is bad UX and the entire list of all roles on the server could be long, and perhaps even sensitive. Allows e.g. picking a role with fewer permissions than what might otherwise have been selected. UX wise, doing this with more checkboxes or possibly radio buttons would have been confusion and/or looked messier. Fixes the previous situation where unselecting a role would default to the primary role, which could be more permissions than requested.
author Kim Alvefur <zash@zash.se>
date Fri, 05 May 2023 01:23:13 +0200
parents f95a1e197a07
children
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1 local id = require "util.id";
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2 local jid = require "util.jid";
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3 local promise = require "util.promise";
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4 local rm = require "core.rostermanager";
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5 local st = require "util.stanza";
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6
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7 local errors = require "util.error".init(module.name, {
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8 ["statement-not-found"] = { type = "cancel", condition = "item-not-found" };
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9 ["statement-mismatch"] = { type = "cancel", condition = "conlict" };
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10 });
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11
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12 module:hook("presence/bare", function (event)
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13 local origin, stanza = event.origin, event.stanza;
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14 if stanza.attr.type ~= "subscribe" then
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15 return; -- We're only interested in subscription requests
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16 end
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17 local moved = stanza:get_child("moved", "urn:xmpp:moved:1");
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18 if not moved then
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19 return; -- We're only interested in stanzas with a moved notification
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20 end
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21
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22 local verification = stanza:get_child("moved-verification", "https://prosody.im/protocol/moved");
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23 if verification then
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24 return; -- We already attempted to verify this stanza
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25 end
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26
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27 module:log("debug", "Received moved notification from %s", stanza.attr.from);
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28
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29 local old_jid = moved:get_child_text("old-jid");
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30 if not old_jid then
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31 return; -- Failed to read old JID
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32 end
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33
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34 local to_user = jid.node(stanza.attr.to);
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35 local new_jid_unverified = jid.bare(stanza.attr.from);
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36
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37 if not rm.is_contact_subscribed(to_user, module.host, old_jid) then
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38 return; -- Old JID was not an existing contact, ignore
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39 end
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40
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41 if rm.is_contact_pending_in(to_user, module.host, new_jid_unverified)
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42 or rm.is_contact_subscribed(to_user, module.host, new_jid_unverified) then
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43 return; -- New JID already subscribed or pending, ignore
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44 end
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45
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46 local moved_statement_query = st.iq({ to = old_jid, type = "get", id = id.short() })
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47 :tag("pubsub", { xmlns = "http://jabber.org/protocol/pubsub" })
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48 :tag("items", { node = "urn:xmpp:moved:1" })
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49 :tag("item", { id = "current" }):up()
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50 :up()
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51 :up();
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52 -- TODO: Catch and handle <gone/> errors per note in XEP-0283.
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53 module:send_iq(moved_statement_query):next(function (reply)
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54 module:log("debug", "Statement reply: %s", reply.stanza);
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55 local moved_statement = reply.stanza:find("{http://jabber.org/protocol/pubsub}pubsub/items/{http://jabber.org/protocol/pubsub}item/{urn:xmpp:moved:1}moved");
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56 if not moved_statement then
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57 return promise.reject(errors.new("statement-not-found")); -- No statement found
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58 end
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59
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60 local new_jid = jid.prep(moved_statement:get_child_text("new-jid"));
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61 if new_jid ~= new_jid_unverified then
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62 return promise.reject(errors.new("statement-mismatch")); -- Verification failed; JIDs do not match
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63 end
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64
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65 -- Verified!
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66 module:log("info", "Verified moved notification <%s> -> <%s>", old_jid, new_jid);
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67
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68 -- Add incoming subscription and respond
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69 rm.set_contact_pending_in(to_user, module.host, new_jid);
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70 rm.subscribed(to_user, module.host, new_jid);
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71 module:send(st.presence({ to = new_jid, from = to_user.."@"..module.host, type = "subscribed" }));
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72 rm.roster_push(to_user, module.host, new_jid);
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73
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74 -- Request outgoing subscription if old JID had one
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75 if rm.is_user_subscribed(to_user, module.host, old_jid) then
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76 module:log("debug", "Requesting subscription to new JID");
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77 rm.set_contact_pending_out(to_user, module.host, new_jid);
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78 module:send(st.presence({ to = new_jid, from = to_user.."@"..module.host, type = "subscribe" }));
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79 end
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80 end):catch(function (err)
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81 module:log("debug", "Failed to verify moved statement for <%s> -> <%s>: %s", old_jid, new_jid_unverified, require "util.serialization".serialize(err, "debug"));
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82 stanza:reset()
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83 :tag("moved-verification", { xmlns = "https://prosody.im/protocol/moved", status = "failed" })
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84 :up();
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85 module:send(stanza, origin);
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86 end);
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87
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88 -- Halt processing of the stanza, for now
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89 return true;
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90 end, 1);