prosody
e385f3a06673
util/envload.lua

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util/envload.lua @ 12995:e385f3a06673

moduleapi: Add 'peek' to :may() and new :could() helper to suppress logging The current method logs scary "access denied" messages on failure - this is generally very useful when debugging access control stuff, but in some cases the call is simply a check to see if someone *could* perform an action, even if they haven't requested it yet. One example is determining whether to show the user as an admin in disco. The 'peek' parameter, if true, will suppress such logging. The :could() method is just a simple helper that can make the calling code a bit more readable (suggested by Zash).
author Matthew Wild <mwild1@gmail.com>
date Sun, 26 Mar 2023 14:06:04 +0100
parent 12576:d1aacc6a81ac
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ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
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1 -- Prosody IM
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
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2 -- Copyright (C) 2008-2011 Florian Zeitz
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
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3 --
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
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4 -- This project is MIT/X11 licensed. Please see the
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
parents:
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5 -- COPYING file in the source package for more information.
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
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6 --
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bc9cb23b604a util.envload: Ignore "undefined variable" warning for loadstring [luacheck with strict 5.2 or 5.3 checks]
Kim Alvefur <zash@zash.se>
parents: 7930
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7 -- luacheck: ignore 113/setfenv 113/loadstring
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9 local load = load;
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10 local io_open = io.open;
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12 local function envload(code, source, env)
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13 return load(code, source, nil, env);
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14 end
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16 local function envloadfile(file, env)
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17 local fh, err, errno = io_open(file);
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18 if not fh then return fh, err, errno; end
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19 local f, err = load(fh:lines(2048), "@" .. file, nil, env);
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20 fh:close();
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21 return f, err;
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22 end
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
Florian Zeitz <florob@babelmonkeys.de>
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23
ef1eb65acbba util.envload: New module to abstract Lua 5.1's setfenv and Lua 5.2's load
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24 return { envload = envload, envloadfile = envloadfile };