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util.pubsub: Add method returning subset of config as metadata

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Allows granting read only access to other sets of users using a separate
access control capability, which makes sense as some properties may be
intended to be public but read-only.
This commit is contained in:
Kim Alvefur 2024-11-08 02:11:00 +01:00
parent ef342f9734
commit 9005d35b48
2 changed files with 29 additions and 0 deletions
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10
spec/util_pubsub_spec.lua
View file

@ -605,4 +605,14 @@ describe("util.pubsub", function ()
end);
end)
describe("metadata", function()
it("works", function()
local service = pubsub.new { metadata_subset = { "title" } };
assert.truthy(service:create("node", true, { title = "Hello", secret = "hidden" }))
local ok, meta = service:get_node_metadata("node", "nobody");
assert.truthy(ok, meta);
assert.same({ title = "Hello" }, meta);
end)
end);
end);

19
util/pubsub.lua
View file

@ -11,6 +11,7 @@ local default_config = {
itemcheck = function () return true; end;
get_affiliation = function () end;
normalize_jid = function (jid) return jid; end;
metadata_subset = {};
capabilities = {
outcast = {
create = false;
@ -45,6 +46,7 @@ local default_config = {
get_subscription = true;
get_subscriptions = true;
get_items = false;
get_metadata = true;
subscribe_other = false;
unsubscribe_other = false;
@ -67,6 +69,7 @@ local default_config = {
get_subscription = true;
get_subscriptions = true;
get_items = true;
get_metadata = true;
subscribe_other = false;
unsubscribe_other = false;
@ -90,6 +93,7 @@ local default_config = {
get_subscription = true;
get_subscriptions = true;
get_items = true;
get_metadata = true;
subscribe_other = false;
unsubscribe_other = false;
@ -115,6 +119,7 @@ local default_config = {
get_subscription = true;
get_subscriptions = true;
get_items = true;
get_metadata = true;
subscribe_other = true;
@ -872,6 +877,20 @@ function service:get_node_config(node, actor) --> (true, config) or (false, err)
return true, config_table;
end
function service:get_node_metadata(node, actor)
if not self:may(node, actor, "get_metadata") then
return false, "forbidden";
end
local ok, config = self:get_node_config(node, true);
if not ok then return ok, config; end
local meta = {};
for _, k in ipairs(self.config.metadata_subset) do
meta[k] = config[k];
end
return true, meta;
end
return {
new = new;
};