prosody
f1af4edd5722
util/uuid.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

util/uuid.lua @ 6657:f1af4edd5722

mod_pubsub: Add option for default affiliation of non-existent nodes (thanks Flow)
author Kim Alvefur <zash@zash.se>
date Tue, 05 May 2015 12:21:32 +0200
parent 6377:50e5aed4eeea
child 7012:990b4ddaf582
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1523
841d61be198f Remove version number from copyright headers
Matthew Wild <mwild1@gmail.com>
parents: 1304
diff changeset
1 -- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1523
diff changeset
2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 1523
diff changeset
3 -- Copyright (C) 2008-2010 Waqas Hussain
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 2957
diff changeset
4 --
758
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 615
diff changeset
5 -- This project is MIT/X11 licensed. Please see the
b1885732e979 GPL->MIT!
Matthew Wild <mwild1@gmail.com>
parents: 615
diff changeset
6 -- COPYING file in the source package for more information.
519
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 145
diff changeset
7 --
cccd610a0ef9 Insert copyright/license headers
Matthew Wild <mwild1@gmail.com>
parents: 145
diff changeset
8
6377
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
9 local random = require "util.random";
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
10 local random_bytes = random.bytes;
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
11 local hex = require "util.hex".to;
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
12 local m_ceil = math.ceil;
1302
4561c6d95339 util.uuid: More uniqueness!
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
13
6377
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
14 local function get_nibbles(n)
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
15 return hex(random_bytes(m_ceil(n/2))):sub(1, n);
44
80d2ade0fd69 Add "uuid" library and make sessionmanager use this.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 end
80d2ade0fd69 Add "uuid" library and make sessionmanager use this.
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17
1303
2170e2c0d57a util.uuid: Now generates RFC 4122 complaint UUIDs (version 4 - random)
Waqas Hussain <waqas20@gmail.com>
parents: 1302
diff changeset
18 local function get_twobits()
2170e2c0d57a util.uuid: Now generates RFC 4122 complaint UUIDs (version 4 - random)
Waqas Hussain <waqas20@gmail.com>
parents: 1302
diff changeset
19 return ("%x"):format(get_nibbles(1):byte() % 4 + 8);
2170e2c0d57a util.uuid: Now generates RFC 4122 complaint UUIDs (version 4 - random)
Waqas Hussain <waqas20@gmail.com>
parents: 1302
diff changeset
20 end
2170e2c0d57a util.uuid: Now generates RFC 4122 complaint UUIDs (version 4 - random)
Waqas Hussain <waqas20@gmail.com>
parents: 1302
diff changeset
21
6377
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
22 local function generate()
1303
2170e2c0d57a util.uuid: Now generates RFC 4122 complaint UUIDs (version 4 - random)
Waqas Hussain <waqas20@gmail.com>
parents: 1302
diff changeset
23 -- generate RFC 4122 complaint UUIDs (version 4 - random)
2170e2c0d57a util.uuid: Now generates RFC 4122 complaint UUIDs (version 4 - random)
Waqas Hussain <waqas20@gmail.com>
parents: 1302
diff changeset
24 return get_nibbles(8).."-"..get_nibbles(4).."-4"..get_nibbles(3).."-"..(get_twobits())..get_nibbles(3).."-"..get_nibbles(12);
1302
4561c6d95339 util.uuid: More uniqueness!
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
25 end
4561c6d95339 util.uuid: More uniqueness!
Waqas Hussain <waqas20@gmail.com>
parents: 896
diff changeset
26
6377
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
27 return {
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
28 get_nibbles=get_nibbles;
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
29 generate = generate ;
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
30 -- COMPAT
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
31 seed = random.seed;
50e5aed4eeea util.uuid: Use util.hex and util.random
Matthew Wild <mwild1@gmail.com>
parents: 5776
diff changeset
32 };