File

net/resolvers/chain.lua @ 12694:26a004c96ef8

util.paseto: Implementation of PASETO v4.public tokens PASETO provides an alternative to JWT with the promise of fewer implementation pitfalls. The v4.public algorithm allows asymmetric cryptographically-verified token issuance and validation. In summary, such tokens can be issued by one party and securely verified by any other party independently using the public key of the issuer. This has a number of potential applications in a decentralized network and ecosystem such as XMPP. For example, such tokens could be combined with XEP-0317 to allow hats to be verified even in the context of a third-party MUC service.
author Matthew Wild <mwild1@gmail.com>
date Fri, 24 Jun 2022 17:03:28 +0100 (2022-06-24)
parent 12204:7c397a49d163
line wrap: on
line source

local methods = {};
local resolver_mt = { __index = methods };

-- Find the next target to connect to, and
-- pass it to cb()
function methods:next(cb)
	if self.resolvers then
		if not self.resolver then
			if #self.resolvers == 0 then
				cb(nil);
				return;
			end
			local next_resolver = table.remove(self.resolvers, 1);
			self.resolver = next_resolver;
		end
		self.resolver:next(function (...)
			if self.resolver then
				self.last_error = self.resolver.last_error;
			end
			if ... == nil then
				self.resolver = nil;
				self:next(cb);
			else
				cb(...);
			end
		end);
		return;
	end
end

local function new(resolvers)
	return setmetatable({ resolvers = resolvers }, resolver_mt);
end

return {
	new = new;
};