Software / code / prosody
Annotate
util/jwt.lua @ 11628:0807e835d3b5
mod_external_services: Report overall status as a module status
Because during startup, if all items are provided by a different module
(e.g. mod_turn_external) then this would log a scary warning even if
everything is fine after that other module has been loaded.
This way, any persistent problematic state is reported in the console.
Errors with individual items should still be reported by prepare().
Now, if you load mod_external_services alone without configuring any
services, no error or warning is reported in the log, but maybe that's
not so bad with it reported in the console.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Mon, 21 Jun 2021 22:43:26 +0200 |
| parent | 11561:d2f33b8fdc96 |
| child | 12696:27a72982e331 |
| rev | line source |
|---|---|
|
10660
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
1 local s_gsub = string.gsub; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
2 local json = require "util.json"; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
3 local hashes = require "util.hashes"; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
4 local base64_encode = require "util.encodings".base64.encode; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
5 local base64_decode = require "util.encodings".base64.decode; |
|
11561
d2f33b8fdc96
util.jwt: Use constant-time comparison with expected signature
Matthew Wild <mwild1@gmail.com>
parents:
10660
diff
changeset
|
6 local secure_equals = require "util.hashes".equals; |
|
10660
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
7 |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
8 local b64url_rep = { ["+"] = "-", ["/"] = "_", ["="] = "", ["-"] = "+", ["_"] = "/" }; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
9 local function b64url(data) |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
10 return (s_gsub(base64_encode(data), "[+/=]", b64url_rep)); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
11 end |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
12 local function unb64url(data) |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
13 return base64_decode(s_gsub(data, "[-_]", b64url_rep).."=="); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
14 end |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
15 |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
16 local static_header = b64url('{"alg":"HS256","typ":"JWT"}') .. '.'; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
17 |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
18 local function sign(key, payload) |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
19 local encoded_payload = json.encode(payload); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
20 local signed = static_header .. b64url(encoded_payload); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
21 local signature = hashes.hmac_sha256(key, signed); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
22 return signed .. "." .. b64url(signature); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
23 end |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
24 |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
25 local jwt_pattern = "^(([A-Za-z0-9-_]+)%.([A-Za-z0-9-_]+))%.([A-Za-z0-9-_]+)$" |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
26 local function verify(key, blob) |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
27 local signed, bheader, bpayload, signature = string.match(blob, jwt_pattern); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
28 if not signed then |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
29 return nil, "invalid-encoding"; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
30 end |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
31 local header = json.decode(unb64url(bheader)); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
32 if not header or type(header) ~= "table" then |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
33 return nil, "invalid-header"; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
34 elseif header.alg ~= "HS256" then |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
35 return nil, "unsupported-algorithm"; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
36 end |
|
11561
d2f33b8fdc96
util.jwt: Use constant-time comparison with expected signature
Matthew Wild <mwild1@gmail.com>
parents:
10660
diff
changeset
|
37 if not secure_equals(b64url(hashes.hmac_sha256(key, signed)), signature) then |
|
10660
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
38 return false, "signature-mismatch"; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
39 end |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
40 local payload, err = json.decode(unb64url(bpayload)); |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
41 if err ~= nil then |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
42 return nil, "json-decode-error"; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
43 end |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
44 return true, payload; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
45 end |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
46 |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
47 return { |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
48 sign = sign; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
49 verify = verify; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
50 }; |
|
c4ded3be7cc0
util.jwt: Basic JSON Web Token library supporting HS256 tokens
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
51 |
