view mod_default_vcard/mod_default_vcard.lua @ 4651:8231774f5bfd

mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8 The `body:sub()` call risks splitting the string in the middle of a multi-byte UTF-8 sequence. This should have been caught by util.stanza validation, but that would have caused some havoc, at the very least causing the notification to not be sent. There have been no reports of this happening. Likely because this module isn't widely deployed among users with languages that use many longer UTF-8 sequences. The util.encodings.utf8.valid() function is O(n) where only the last sequence really needs to be checked, but it's in C and expected to be fast.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Aug 2021 13:22:59 +0200
parents 7236cdec3ea1
children
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local datamanager = require "util.datamanager";
local st = require "util.stanza";
local host = module.host;

module:hook("user-registered", function(event)
	local username = event.username;
	local data = datamanager.load(username, host, "account_details");
	local vcard = datamanager.load(username, host, "vcard");
	--module:log("debug", "Has account details: %s", data and "yes" or "no");
	--module:log("debug", "Has vCard: %s", vcard and "yes" or "no");
	if data and not vcard then
		local name, first, last = data.name, data.first, data.last;
		if not name and (first and last) then
			name = first .. " " .. last;
		elseif name and not (first and last) then
			first, last = name:match("^(%w+)%s+(%w+)$")
		end
		local vcard = st.stanza("vCard", { xmlns = "vcard-temp" })
			:tag("VERSION"):text("3.0"):up();
		if first or last then
			vcard:tag("N")
				:tag("FAMILY"):text(last or ""):up()
				:tag("GIVEN"):text(first or ""):up()
			:up()
		end
		if name then
			vcard:tag("FN"):text(name or ""):up()
		end
		vcard:tag("NICKNAME"):text(data.nick or username):up();
		if data.email then
			vcard:tag("EMAIL"):tag("USERID"):text(data.email):up():up();
		end
		local ok, err = datamanager.store(username, host, "vcard", st.preserialize(vcard));
		if not ok then
			module:log("error", "Couldn't save vCard data, %s", err);
		end
	end
end);