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149
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1
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2 local softreq = function (...) return select(2, pcall(require, ...)); end
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3
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4 module "hashes"
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5
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6 local md5 = softreq("md5");
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7 if md5 then
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8 if md5.digest then
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9 local md5_digest = md5.digest;
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10 local sha1_digest = sha1.digest;
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11 function _M.md5(input)
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12 return md5_digest(input);
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13 end
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14 function _M.sha1(input)
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15 return sha1_digest(input);
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16 end
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17 elseif md5.sumhexa then
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18 local md5_sumhexa = md5.sumhexa;
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19 function _M.md5(input)
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20 return md5_sumhexa(input);
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21 end
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22 else
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23 error("md5 library found, but unrecognised... no hash functions will be available", 0);
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24 end
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25 end
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26
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27 return _M;
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