prosody
fc97319ef48e
util/hex.lua

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util/hex.lua @ 13758:fc97319ef48e 13.0

util.sasl: Preserve 'userdata' field between clones The :clean_clone() method is designed to provide a new cloned SASL handler, to be used when starting a fresh SASL negotiation on an existing connection. The userdata field is currently populated by mod_saslauth with the "read-only" information that the channel binding methods need to do their stuff. When :clean_clone() does not preserve this, it causes tracebacks in the cb profile handlers due to the property being nil. This does mean that SASL handlers should now not be reused (even when cloned) across different connections, if they ever could.
author Matthew Wild <mwild1@gmail.com>
date Thu, 06 Mar 2025 13:34:37 +0000
parent 12355:a0ff5c438e9d
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rev   line source
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76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
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1 local s_char = string.char;
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ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
Kim Alvefur <zash@zash.se>
parents: 6384
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2 local s_format = string.format;
ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
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3 local s_gsub = string.gsub;
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442019e955dc util.hex: Normalize hex to lowercase and discard non-hex input
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4 local s_lower = string.lower;
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5
ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
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6 local char_to_hex = {};
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7 local hex_to_char = {};
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76d8907d5301 util.hex: Small util lib for converting to/from hex strings
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8
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ec566d7cd518 util.hex: Pedantic optimization, 1 table lookup per byte instead of 3 function calls makes it go faster
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9 do
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10 local char, hex;
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11 for i = 0,255 do
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12 char, hex = s_char(i), s_format("%02x", i);
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13 char_to_hex[char] = hex;
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14 hex_to_char[hex] = char;
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15 end
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76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
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16 end
76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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17
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3f4809d01783 util.hex: Use locals!
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18 local function to(s)
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19 return (s_gsub(s, ".", char_to_hex));
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20 end
76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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21
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22 local function from(s)
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23 return (s_gsub(s_lower(s), "%X*(%x%x)%X*", hex_to_char));
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24 end
76d8907d5301 util.hex: Small util lib for converting to/from hex strings
Matthew Wild <mwild1@gmail.com>
parents:
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25
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parents: 6802
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26 return {
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27 encode = to, decode = from;
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parents: 6802
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28 -- COMPAT w/pre-0.12:
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29 to = to, from = from;
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parents: 6802
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30 };