Mercurial > p > roundup > code

annotate roundup/cgi/accept_language.py @ 7201:da751d3a2138

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
issue2551253 - Modify password PBKDF2 method to use SHA512 Added new PBKDF2S5 using PBKDF2 with SHA512 rather than the original PBKDF2 which used SHA1. Currently changes to interfaces.py are required to use it. If we choose to adopt it, need to decide if mechanisms will be available via config.ini to choose methods and force migration.
author John Rouillard <rouilj@ieee.org>
date Tue, 28 Feb 2023 15:49:47 -0500
parents 63c9680eed20
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
1 """Parse the Accept-Language header as defined in RFC2616.
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
2
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
3 See http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.4
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
4 for details. This module should follow the spec.
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
5 Author: Hernan M. Foffani (hfoffani@gmail.com)
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
6 Some use samples:
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
7
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
8 >>> parse("da, en-gb;q=0.8, en;q=0.7")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
9 ['da', 'en_gb', 'en']
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
10 >>> parse("en;q=0.2, fr;q=1")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
11 ['fr', 'en']
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
12 >>> parse("zn; q = 0.2 ,pt-br;q =1")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
13 ['pt_br', 'zn']
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
14 >>> parse("es-AR")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
15 ['es_AR']
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
16 >>> parse("es-es-cat")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
17 ['es_es_cat']
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
18 >>> parse("")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
19 []
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
20 >>> parse(None)
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
21 []
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
22 >>> parse(" ")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
23 []
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
24 >>> parse("en,")
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
25 ['en']
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
26 """
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
27
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
28 import re
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
29 import heapq
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
30
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
31 # regexp for languange-range search
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
32 nqlre = "([A-Za-z]+[-[A-Za-z]+]*)$"
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
33 # regexp for languange-range search with quality value
6030
ed8a9974c1bd flake8 cleanups. whie space changes.
John Rouillard <rouilj@ieee.org>
parents: 5809
diff changeset
34 qlre = r"([A-Za-z]+[-[A-Za-z]+]*);q=([\d\.]+)"
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
35 # both
6030
ed8a9974c1bd flake8 cleanups. whie space changes.
John Rouillard <rouilj@ieee.org>
parents: 5809
diff changeset
36 lre = re.compile(nqlre + "|" + qlre)
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
37
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
38 whitespace = ' \t\n\r\v\f'
5439
b00cd44fea16 Python 3 preparation: update string translate method call in cgi/accept_language.py.
Joseph Myers <jsm@polyomino.org.uk>
parents: 4362
diff changeset
39 try:
b00cd44fea16 Python 3 preparation: update string translate method call in cgi/accept_language.py.
Joseph Myers <jsm@polyomino.org.uk>
parents: 4362
diff changeset
40 # Python 3.
b00cd44fea16 Python 3 preparation: update string translate method call in cgi/accept_language.py.
Joseph Myers <jsm@polyomino.org.uk>
parents: 4362
diff changeset
41 remove_ws = (str.maketrans('', '', whitespace),)
b00cd44fea16 Python 3 preparation: update string translate method call in cgi/accept_language.py.
Joseph Myers <jsm@polyomino.org.uk>
parents: 4362
diff changeset
42 except AttributeError:
b00cd44fea16 Python 3 preparation: update string translate method call in cgi/accept_language.py.
Joseph Myers <jsm@polyomino.org.uk>
parents: 4362
diff changeset
43 # Python 2.
b00cd44fea16 Python 3 preparation: update string translate method call in cgi/accept_language.py.
Joseph Myers <jsm@polyomino.org.uk>
parents: 4362
diff changeset
44 remove_ws = (None, whitespace)
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
45
6030
ed8a9974c1bd flake8 cleanups. whie space changes.
John Rouillard <rouilj@ieee.org>
parents: 5809
diff changeset
46
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
47 def parse(language_header):
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
48 """parse(string_with_accept_header_content) -> languages list"""
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
49
6980
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
50 if language_header is None: return [] # noqa: E701
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
51
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
52 # strip whitespaces.
5439
b00cd44fea16 Python 3 preparation: update string translate method call in cgi/accept_language.py.
Joseph Myers <jsm@polyomino.org.uk>
parents: 4362
diff changeset
53 lh = language_header.translate(*remove_ws)
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
54
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
55 # if nothing, return
6980
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
56 if lh == "": return [] # noqa: E701
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
57
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
58 # split by commas and parse the quality values.
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
59 pls = [lre.findall(x) for x in lh.split(',')]
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
60
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
61 # drop uncomformant
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
62 qls = [x[0] for x in pls if len(x) > 0]
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
63
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
64 # use a heap queue to sort by quality values.
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
65 # the value of each item is 1.0 complement.
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
66 pq = []
6980
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
67 order = 0
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
68 for lang in qls:
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
69 order += 1
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
70 if lang[0] != '':
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
71 heapq.heappush(pq, (0.0, order, lang[0]))
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
72 else:
6980
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
73 heapq.heappush(pq, (1.0-float(lang[2]), order, lang[1]))
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
74
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
75 # get the languages ordered by quality
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
76 # and replace - by _
6980
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
77 return [heapq.heappop(pq)[2].replace('-', '_') for x in range(len(pq))]
63c9680eed20 fake8 whitespace; variable name replacement
John Rouillard <rouilj@ieee.org>
parents: 6347
diff changeset
78
3426
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
79
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
80 if __name__ == "__main__":
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
81 import doctest
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
82 doctest.testmod()
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
83
52f89836d05b Parse the Accept-Language header as defined in RFC2616.
Alexander Smishlajev <a1s@users.sourceforge.net>
parents:
diff changeset
84 # vim: set et sts=4 sw=4 :
Roundup Issue Tracker: http://roundup-tracker.org/