prosody
5ccce16c6449
util/id.lua

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util/id.lua @ 9825:5ccce16c6449

net.server_epoll: Increase send_timeout to 3 minutes (to match server_event) The separate connect_timeout means we can afford a longer send_timeout
author Kim Alvefur <zash@zash.se>
date Sat, 09 Feb 2019 20:54:35 +0100
parent 8016:9546c629289b
child 12110:b5b799a2a10c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8016
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2017 Matthew Wild
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3 -- Copyright (C) 2008-2017 Waqas Hussain
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4 -- Copyright (C) 2008-2017 Kim Alvefur
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5 --
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6 -- This project is MIT/X11 licensed. Please see the
9546c629289b util.id: New util for producing random identifiers of varying sizes
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7 -- COPYING file in the source package for more information.
9546c629289b util.id: New util for producing random identifiers of varying sizes
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8 --
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9
9546c629289b util.id: New util for producing random identifiers of varying sizes
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10 local s_gsub = string.gsub;
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11 local random_bytes = require "util.random".bytes;
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12 local base64_encode = require "util.encodings".base64.encode;
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13
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14 local b64url = { ["+"] = "-", ["/"] = "_", ["="] = "" };
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15 local function b64url_random(len)
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16 return (s_gsub(base64_encode(random_bytes(len)), "[+/=]", b64url));
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17 end
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18
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19 return {
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20 short = function () return b64url_random(6); end;
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21 medium = function () return b64url_random(12); end;
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22 long = function () return b64url_random(24); end;
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23 custom = function (size)
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24 return function () return b64url_random(size); end;
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25 end;
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26 }