prosody-hg: util/random.lua annotate

annotate util/random.lua @ 9659:86c431650dfd

net.websocket.frames: Prefer Lua 5.2 built-in bit module over LuaJIT version When running on Lua 5.2 this makes sense since bit32 is usually already loaded. It's sensible to prefer this going forward in case of incompatibilities between the two variants.

author	Kim Alvefur <zash@zash.se>
date	Thu, 29 Nov 2018 16:53:22 +0100
parents	292f61d9d30a
children	5d2f7144fa12

rev	line source
6376 bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	1 -- Prosody IM
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	2 -- Copyright (C) 2008-2014 Matthew Wild
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	3 -- Copyright (C) 2008-2014 Waqas Hussain
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	4 --
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	5 -- This project is MIT/X11 licensed. Please see the
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	6 -- COPYING file in the source package for more information.
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	7 --
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	8
7187 3d2c2f0809ee util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG Kim Alvefur <zash@zash.se> parents: 7114 diff changeset	9 local ok, crand = pcall(require, "util.crand");
3d2c2f0809ee util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG Kim Alvefur <zash@zash.se> parents: 7114 diff changeset	10 if ok then return crand; end
3d2c2f0809ee util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG Kim Alvefur <zash@zash.se> parents: 7114 diff changeset	11
7114 51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid Kim Alvefur <zash@zash.se> parents: 7083 diff changeset	12 local urandom, urandom_err = io.open("/dev/urandom", "r");
6376 bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	13
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	14 local function bytes(n)
7050 ae044691de0f util.random: Use /dev/urandom Kim Alvefur <zash@zash.se> parents: 6421 diff changeset	15 return urandom:read(n);
6376 bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	16 end
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	17
7114 51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid Kim Alvefur <zash@zash.se> parents: 7083 diff changeset	18 if not urandom then
51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid Kim Alvefur <zash@zash.se> parents: 7083 diff changeset	19 function bytes()
51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid Kim Alvefur <zash@zash.se> parents: 7083 diff changeset	20 error("Unable to obtain a secure random number generator, please see https://prosody.im/doc/random ("..urandom_err..")");
51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid Kim Alvefur <zash@zash.se> parents: 7083 diff changeset	21 end
51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid Kim Alvefur <zash@zash.se> parents: 7083 diff changeset	22 end
51cf09bb74eb util.random: Restore friendlier error from 0.9/util.uuid Kim Alvefur <zash@zash.se> parents: 7083 diff changeset	23
6376 bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	24 return {
bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	25 bytes = bytes;
8242 177873dc9cf3 util.random: Add a _source field to match util.crand Kim Alvefur <zash@zash.se> parents: 7187 diff changeset	26 _source = "/dev/urandom";
6376 bd812a7713ad util.random: Generic util lib for generating strings of random bytes Matthew Wild <mwild1@gmail.com> parents: diff changeset	27 };

Mercurial > prosody-hg

annotate util/random.lua @ 9659:86c431650dfd