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util/hex.lua @ 11503:7adda14945ad
mod_http_file_share: Include expiry time of the upload itself in token
Lets an external upload service know this so it can do expiry itself.
Could possibly have been calculated based on the token expiry or
issuance time, explicit > implicit.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 05 Apr 2021 17:21:18 +0200 |
parent | 6802:442019e955dc |
child | 12355:a0ff5c438e9d |
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local s_char = string.char; local s_format = string.format; local s_gsub = string.gsub; local s_lower = string.lower; local char_to_hex = {}; local hex_to_char = {}; do local char, hex; for i = 0,255 do char, hex = s_char(i), s_format("%02x", i); char_to_hex[char] = hex; hex_to_char[hex] = char; end end local function to(s) return (s_gsub(s, ".", char_to_hex)); end local function from(s) return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char)); end return { to = to, from = from }