prosody
24b55f0e2db9
util/id.lua

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

Software / code / prosody

Annotate

util/id.lua @ 12790:24b55f0e2db9 0.12

mod_http: Allow disabling CORS in the http_cors_override option and by default Fixes #1779. Due to an oversight in the logic, if the user set 'enabled' to false in an override, it would disable the item's requested CORS settings, but still apply Prosody's default CORS policy. This change ensures that 'enabled = false' will now disable CORS entirely for the requested item. Due to the new structure of the code, it was necessary to have a flag to say whether CORS is to be applied at all. Rather than hard-coding 'true' here, I chose to add a new option: 'http_default_cors_enabled'. This is a boolean that allows the operator to disable Prosody's default CORS policy entirely (the one that is used when a module or config does not override it). This makes it easier to disable CORS and then selectively enable it only on services you want it on.
author Matthew Wild <mwild1@gmail.com>
date Mon, 31 Oct 2022 14:32:02 +0000
parent 12111:f8d280215633
child 12975:d10957394a3c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8016
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- Prosody IM
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 -- Copyright (C) 2008-2017 Matthew Wild
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 -- Copyright (C) 2008-2017 Waqas Hussain
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4 -- Copyright (C) 2008-2017 Kim Alvefur
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 --
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6 -- This project is MIT/X11 licensed. Please see the
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 -- COPYING file in the source package for more information.
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
8 --
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 local s_gsub = string.gsub;
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 local random_bytes = require "util.random".bytes;
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 local base64_encode = require "util.encodings".base64.encode;
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 local b64url = { ["+"] = "-", ["/"] = "_", ["="] = "" };
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15 local function b64url_random(len)
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16 return (s_gsub(base64_encode(random_bytes(len)), "[+/=]", b64url));
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 end
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 return {
12110
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
20 -- sizes divisible by 3 fit nicely into base64 without padding==
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
21
12111
f8d280215633 util.id: Add a 'tiny' variant
Kim Alvefur <zash@zash.se>
parents: 12110
diff changeset
22 -- for short lived things with low risk of collisions
f8d280215633 util.id: Add a 'tiny' variant
Kim Alvefur <zash@zash.se>
parents: 12110
diff changeset
23 tiny = function() return b64url_random(3); end;
f8d280215633 util.id: Add a 'tiny' variant
Kim Alvefur <zash@zash.se>
parents: 12110
diff changeset
24
12110
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
25 -- close to 8 bytes, should be good enough for relatively short lived or uses
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
26 -- scoped by host or users, half the size of an uuid
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
27 short = function() return b64url_random(9); end;
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
28
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
29 -- more entropy than uuid at 2/3 the size
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
30 -- should be okay for globally scoped ids or security token
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
31 medium = function() return b64url_random(18); end;
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
32
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
33 -- as long as an uuid but MOAR entropy
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
34 long = function() return b64url_random(27); end;
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
35
b5b799a2a10c util.id: Adjust entropy levels, with rationales
Kim Alvefur <zash@zash.se>
parents: 8016
diff changeset
36 -- pick your own adventure
8016
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
37 custom = function (size)
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 return function () return b64url_random(size); end;
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39 end;
9546c629289b util.id: New util for producing random identifiers of varying sizes
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 }