Software /
code /
prosody
Annotate
util/random.lua @ 9407:0a8ddd855587
mod_admin_telnet: Remove from luacheck ignore list
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 30 Sep 2018 14:38:32 +0200 |
parent | 8243:292f61d9d30a |
child | 10014:5d2f7144fa12 |
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 | 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 }; |