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26 lines
814 B
26 lines
814 B
-- Prosody IM
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-- Copyright (C) 2008-2017 Matthew Wild
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-- Copyright (C) 2008-2017 Waqas Hussain
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-- Copyright (C) 2008-2017 Kim Alvefur
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--
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-- This project is MIT/X11 licensed. Please see the
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-- COPYING file in the source package for more information.
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--
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local s_gsub = string.gsub;
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local random_bytes = require "util.random".bytes;
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local base64_encode = require "util.encodings".base64.encode;
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local b64url = { ["+"] = "-", ["/"] = "_", ["="] = "" };
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local function b64url_random(len)
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return (s_gsub(base64_encode(random_bytes(len)), "[+/=]", b64url));
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end
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return {
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short = function () return b64url_random(6); end;
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medium = function () return b64url_random(12); end;
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long = function () return b64url_random(24); end;
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custom = function (size)
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return function () return b64url_random(size); end;
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end;
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}
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