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4585fe53e21f
util/bitcompat.lua

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util/bitcompat.lua @ 10794:4585fe53e21f

MUC: Enforce strict resourceprep when registering room nicknames If nickname enforcement is enabled this would otherwise let you bypass the join check in muc.lib by registering an invalid nickname and then joining with any nickname, letting register.lib change it to the invalid registered nick.
author Kim Alvefur <zash@zash.se>
date Sat, 02 May 2020 20:12:41 +0200
parent 10241:48f7cda4174d
child 12573:0f4feaf9ca64
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
10241
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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1 -- Compatibility layer for bitwise operations
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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2
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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3 -- First try the bit32 lib
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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4 -- Lua 5.3 has it with compat enabled
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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5 -- Lua 5.2 has it by default
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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6 if _G.bit32 then
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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7 return _G.bit32;
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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8 else
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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9 -- Lua 5.1 may have it as a standalone module that can be installed
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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10 local ok, bitop = pcall(require, "bit32")
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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11 if ok then
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12 return bitop;
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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13 end
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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14 end
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15
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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16 do
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Kim Alvefur <zash@zash.se>
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17 -- Lua 5.3 and 5.4 would be able to use native infix operators
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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18 local ok, bitop = pcall(require, "util.bit53")
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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19 if ok then
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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20 return bitop;
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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21 end
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22 end
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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23
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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24 do
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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25 -- Lastly, try the LuaJIT bitop library
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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26 local ok, bitop = pcall(require, "bit")
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27 if ok then
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Kim Alvefur <zash@zash.se>
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28 return bitop;
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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29 end
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Kim Alvefur <zash@zash.se>
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30 end
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
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31
48f7cda4174d util.bitops: Library to find appropriate bitwise library (closes #1395)
Kim Alvefur <zash@zash.se>
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32 error "No bit module found. See https://prosody.im/doc/depends#bitop";