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libs/hashes.lua

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libs/hashes.lua @ 445:b119dc4d8bc2

plugins.smacks: Don't warn about zero stanzas acked It's only if the count somehow goes backwards that something is really wrong. An ack for zero stanzas is fine and we don't need to do anything.
author Kim Alvefur <zash@zash.se>
date Thu, 10 Jun 2021 11:58:23 +0200
parent 443:89526c890363
child 484:5e2978489c95
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 local function not_available(_, method_name)
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3 error("Hash method "..method_name.." not available", 2);
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4 end
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5
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6 local _M = setmetatable({}, { __index = not_available });
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8 local function with(mod, f)
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9 local ok, pkg = pcall(require, mod);
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10 if ok then f(pkg); end
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11 end
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13 with("util.sha1", function (sha1)
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14 _M.sha1 = sha1.sha1;
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15 end);
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17 with("bgcrypto.md5", function (md5)
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18 _M.md5 = md5.digest;
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19 _M.hmac_md5 = md5.hmac.digest;
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20 end);
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22 with("bgcrypto.sha1", function (sha1)
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23 _M.sha1 = sha1.digest;
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24 _M.hmac_sha1 = sha1.hmac.digest;
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25 _M.scram_Hi_sha1 = function (p, s, i) return sha1.pbkdf2(p, s, i, 20); end;
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26 end);
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27
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28 with("bgcrypto.sha256", function (sha256)
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29 _M.sha256 = sha256.digest;
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30 _M.hmac_sha256 = sha256.hmac.digest;
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31 end);
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32
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33 with("bgcrypto.sha512", function (sha512)
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34 _M.sha512 = sha512.digest;
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35 _M.hmac_sha512 = sha512.hmac.digest;
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36 end);
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37
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38 with("sha1", function (sha1)
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39 _M.sha1 = function (data, hex)
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40 if hex then
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41 return sha1.sha1(data);
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42 else
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43 return (sha1.binary(data));
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44 end
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45 end;
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46 end);
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47
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48 return _M;