annotate contrib/unicode2nginx/unicode-to-nginx.pl @ 6371:33c4d319f08f

Resolver: improved PTR response processing. The previous code only parsed the first answer, without checking its type, and required a compressed RR name. The new code checks the RR type, supports responses with multiple answers, and doesn't require the RR name to be compressed. This has a side effect in limited support of CNAME. If a response includes both CNAME and PTR RRs, like when recursion is enabled on the server, PTR RR is handled. Full CNAME support in PTR response is not implemented in this change.
author Ruslan Ermilov <ru@nginx.com>
date Thu, 17 Dec 2015 17:21:16 +0300
parents 63a820b0bc6c
children 8752257e883f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
667
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
1 #!/usr/bin/perl -w
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
2
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
3 # Convert unicode mappings to nginx configuration file format.
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
4
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
5 # You may find useful mappings in various places, including
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
6 # unicode.org official site:
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7 #
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 # http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP1251.TXT
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9 # http://www.unicode.org/Public/MAPPINGS/VENDORS/MISC/KOI8-R.TXT
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11 # Needs perl 5.6 or later.
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
12
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
13 # Written by Maxim Dounin, mdounin@rambler-co.ru
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
14
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
15 ###############################################################################
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
16
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
17 require 5.006;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
18
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
19 while (<>) {
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
20 # Skip comments and empty lines
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
21
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
22 next if /^#/;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
23 next if /^\s*$/;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
24 chomp;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
25
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
26 # Convert mappings
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
27
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
28 if (/^\s*0x(..)\s*0x(....)\s*(#.*)/) {
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
29 # Mapping <from-code> <unicode-code> "#" <unicode-name>
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
30 my $cs_code = $1;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
31 my $un_code = $2;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
32 my $un_name = $3;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
33
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
34 # Produce UTF-8 sequence from character code;
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
35
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
36 my $un_utf8 = join('', map { sprintf("%02X", $_) } unpack("C*", pack("U", hex($un_code))));
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
37
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
38 print " $cs_code $un_utf8 ; $un_name\n";
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
39
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
40 } else {
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
41 warn "Unrecognized line: '$_'";
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
42 }
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
43 }
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
44
63a820b0bc6c nginx-0.3.55-RELEASE import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
45 ###############################################################################