view mod_atom/mod_atom.lua @ 4813:0a257d1402c3

mod_muc_rtbl: Optimize case with zero hashes On the assumption that during quiet times between torrents of spam, the hash set would be empty. There would be no point in doing the operations and hashes to check for a match in that case.
author Kim Alvefur <zash@zash.se>
date Mon, 06 Dec 2021 18:19:19 +0100
parents 5dd505c39c4b
children
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-- HTTP Access to PEP -> microblog
-- By Kim Alvefur <zash@zash.se>

local mod_pep = module:depends"pep";

local um = require "core.usermanager";
local nodeprep = require "util.encodings".stringprep.nodeprep;
local st = require "util.stanza";
local urlencode = require "util.http".urlencode;

module:depends("http")
module:provides("http", {
	route = {
		["GET /*"] = function (event, user)
			if user == "" then
				return [[<h1>Hello from mod_atom</h1><p>This module provides access to public microblogs of local users.</p>]];
			end;

			local request, response = event.request, event.response;
			local actor = request.ip;

			local prepped = nodeprep(user);
			if not prepped then return 400; end
			if prepped ~= user then
				response.headers.location = module:http_url() .. "/" .. urlencode(prepped);
				return 302;
			end
			if not um.user_exists(user, module.host) then
				return 404;
			end

			local pubsub_service = mod_pep.get_pep_service(user);
			local ok, items = pubsub_service:get_items("urn:xmpp:microblog:0", actor);
			if ok then
				response.headers.content_type = "application/xml";
				local feed = st.stanza("feed", { xmlns = "http://www.w3.org/2005/Atom" })
					:text_tag("generator", "Prosody", { uri = "xmpp:prosody.im", version = prosody.version })
					:text_tag("title", pubsub_service.nodes["urn:xmpp:microblog:0"].config.title or "Microblog feed")
					:text_tag("subtitle", pubsub_service.nodes["urn:xmpp:microblog:0"].config.description)
					:tag("author")
						:text_tag("name", user)
						:text_tag("preferredUsername", user, { xmlns = "http://portablecontacts.net/spec/1.0" });
				local ok, _, nick = pubsub_service:get_last_item("http://jabber.org/protocol/nick", actor);
				if ok and nick then
					feed:text_tag("displayName", nick.tags[1][1], { xmlns = "http://portablecontacts.net/spec/1.0" });
				end

				feed:reset();

				for i = #items, 1, -1 do
					feed:add_direct_child(items[items[i]].tags[1]);
				end
				return tostring(feed);
			elseif items == "forbidden" then
				return 403;
			elseif items == "item-not-found" then
				return 404;
			end
		end;
	}
});