Mercurial > libervia-backend

annotate sat/plugins/plugin_comp_ap_gateway/regex.py @ 3743:54c249ec35ce

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
core (memory/migration): ignore FTS table when autogenerating script for migration: SQLite Full-Text Search stable are not associated to Python object and can't be detected by Alembic. To avoid the generation of unwanted drop commands, they are now ignored when autogenerating migration scripts. rel 364
author Goffi <goffi@goffi.org>
date Tue, 22 Mar 2022 17:00:42 +0100
parents eddab3798aca
children 381340b9a9ee
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3741
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
1 #!/usr/bin/env python3
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
2
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
3 # Libervia ActivityPub Gateway
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
4 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org)
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
5
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
6 # This program is free software: you can redistribute it and/or modify
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
7 # it under the terms of the GNU Affero General Public License as published by
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
8 # the Free Software Foundation, either version 3 of the License, or
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
9 # (at your option) any later version.
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
10
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
11 # This program is distributed in the hope that it will be useful,
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
14 # GNU Affero General Public License for more details.
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
15
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
16 # You should have received a copy of the GNU Affero General Public License
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
18
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
19 """Regular Expression to parse "Signature" header"""
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
20
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
21 # those expression have been generated with abnf-to-regex
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
22 # (https://github.com/aas-core-works/abnf-to-regexp)
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
23
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
24 # the base RFC 7320 ABNF rules come from https://github.com/EricGT/ABNF
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
25
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
26 # here is the ABNF file used:
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
27 # ---
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
28 # BWS = OWS
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
29 # OWS = *( SP / HTAB )
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
30 # tchar = "!" / "#" / "$" / "%" / "&" / "`" / "*" / "+" / "-" / "." / "^" / "_" / "\'" / "|" / "~" / DIGIT / ALPHA
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
31 # token = 1*tchar
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
32 # sig-param = token BWS "=" BWS ( token / quoted-string )
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
33 # quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
34 # qdtext = HTAB / SP / "!" / %x23-5B ; '#'-'['
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
35 # / %x5D-7E ; ']'-'~'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
36 # / obs-text
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
37 # quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
38 # obs-text = %x80-FF
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
39 # ---
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
40
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
41 import re
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
42
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
43 ows = '[ \t]*'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
44 bws = f'{ows}'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
45 obs_text = '[\\x80-\\xff]'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
46 qdtext = f'([\t !#-\\[\\]-~]|{obs_text})'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
47 quoted_pair = f'\\\\([\t !-~]|{obs_text})'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
48 quoted_string = f'"({qdtext}|{quoted_pair})*"'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
49 tchar = "([!#$%&`*+\\-.^_]|\\\\'|[|~0-9a-zA-Z])"
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
50 token = f'({tchar})+'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
51 RE_SIG_PARAM = re.compile(
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
52 f'(?P<key>{token}{bws})={bws}'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
53 f'((?P<uq_value>{token})|(?P<quoted_value>{quoted_string}))'
eddab3798aca comp AP gateway: regular expression to parse `Signature` header:
Goffi <goffi@goffi.org>
parents:
diff changeset
54 )