File

plugins/mod_vcard.lua @ 13134:638f627e707f

util.datamanager: Add O(1) list indexing with on-disk index Index file contains offsets and lengths of each item() which allows seeking directly to each item and reading it without parsing the entire file. Also allows tricks like binary search, assuming items have some defined order. We take advantage of the 1-based indexing in tables to store a magic header in the 0 position, so that table index 1 ends up at file index 1.
author Kim Alvefur <zash@zash.se>
date Tue, 11 May 2021 02:09:56 +0200
parent 12977:74b9e05af71e
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-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local st = require "prosody.util.stanza"
local jid_split = require "prosody.util.jid".split;

local vcards = module:open_store();

module:add_feature("vcard-temp");

local function handle_vcard(event)
	local session, stanza = event.origin, event.stanza;
	local to = stanza.attr.to;
	if stanza.attr.type == "get" then
		local vCard;
		if to then
			local node = jid_split(to);
			vCard = st.deserialize(vcards:get(node)); -- load vCard for user or server
		else
			vCard = st.deserialize(vcards:get(session.username));-- load user's own vCard
		end
		if vCard then
			session.send(st.reply(stanza):add_child(vCard)); -- send vCard!
		else
			session.send(st.error_reply(stanza, "cancel", "item-not-found"));
		end
	else -- stanza.attr.type == "set"
		if not to then
			if vcards:set(session.username, st.preserialize(stanza.tags[1])) then
				session.send(st.reply(stanza));
			else
				-- TODO unable to write file, file may be locked, etc, what's the correct error?
				session.send(st.error_reply(stanza, "wait", "internal-server-error"));
			end
		else
			session.send(st.error_reply(stanza, "auth", "forbidden"));
		end
	end
	return true;
end

module:hook("iq/bare/vcard-temp:vCard", handle_vcard);
module:hook("iq/host/vcard-temp:vCard", handle_vcard);