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<VirtualHost *:80>
ServerAdmin zigorou@localhost
DocumentRoot /home/zigorou/www/cache
ServerName cachetest.art-code.org
ExpiresDefault "access plus 5 minutes"
Alias /test1 /home/zigorou/www/cache/test
Alias /test2 /home/zigorou/www/cache/test
Alias /test3 /home/zigorou/www/cache/test
<Location /test1>
FileETag None
ExpiresActive Off
</Location>
<Location /test2>
FileETag Size
ExpiresActive Off
</Location>
<Location /test3>
FileETag Size
ExpiresActive On
</Location>
</VirtualHost>
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| test no | FileETag | ExpiresActive |
|---|---|---|
| 1 | None | Off |
| 2 | Size | Off |
| 3 | Size | On |
ã£ã¦ãªã£ã¦ã¦ã€ãã‚Œãžã‚Œã®ãƒ‘スã«å¯¾ã—ã¦If-Modified-Since, If-None-Match, Cache-Controlヘッダを飛ã°ã—ãªãŒã‚‰200 or 304ãªã®ã‹ã©ã†ã‹èª¿ã¹ã¦ã¿ã‚‹ã€‚
テストスクリプト
最近ã®ã‚¨ãƒ³ãƒˆãƒªã¯ã“ã‚Œã«ç¹‹ãŒã£ã¦ãŸæ¬¡ç¬¬ã§ã™ãŒï½—
#!/usr/bin/perl use strict; use warnings; use Data::Dump qw(dump); use DateTime; use DateTime::Format::HTTP; use HTTP::Request; use LWP::UserAgent; use Set::CrossProduct; use Text::SimpleTable; my $date = DateTime::Format::HTTP->format_datetime(DateTime->now - DateTime::Duration->new(minutes => 30)); my $entries = { 'Cache-Control' => [q|no-cache|, q|max-age=0|, undef], 'If-None-Match' => [q|"2232"|, q|"2222"|, undef], 'If-Modified-Since' => [$date, undef] }; sub request { my ($url, $headers) = @_; my $ua = LWP::UserAgent->new; my $req = HTTP::Request->new('GET', $url); for (keys %$headers) { $req->header($_, $headers->{$_}) if ($headers->{$_}); } my $res = $ua->request($req); return ($req, $res); } my $cp = Set::CrossProduct->new([values %$entries]); my @headers = (); for my $header_vals ($cp->combinations) { my %header; @header{keys %$entries} = @$header_vals; push(@headers, \%header); } for my $idx (1..3) { my $table = Text::SimpleTable->new([6, "no"], [20, "Cache-Control"], [20, "If-None-Match"], [20, "If-Modified-Since"], [7, "status"]); my $url = sprintf("http://cachetest.art-code.org/test%d/logo.gif", $idx); my $hidx = 0; for my $header (@headers) { my ($req, $res) = request($url, $header); $table->row(++$hidx, values %$header, $res->code); } print "test$idx results: \n"; print $table->draw; }
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$ stat test/logo.gif File: `test/logo.gif' Size: 8754 Blocks: 12 IO Block: 1024 ・evice: 3cb4a463h/1018471523d Inode: 844424930313348 Links: 1 Access: (0644/-rw-r--r--) Uid: ( 1006/zigorou) Gid: ( 513/ zigorou) Access: 2007-08-13 20:14:28.437500000 +0900 Modify: 2007-08-13 20:14:28.437500000 +0900 Change: 2007-08-13 20:14:28.437500000 +0900
ã§æ˜¨æ—¥ãŒLast-Modifiedã«ãªã£ã¦ã¾ã™ã€‚
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FileETag: None, ExpiresActive Offã®å ´åˆ
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test1 results: .--------+----------------------+----------------------+----------------------+---------. | no | Cache-Control | If-None-Match | If-Modified-Since | status | +--------+----------------------+----------------------+----------------------+---------+ | 1 | no-cache | "2232" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 2 | no-cache | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 3 | no-cache | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 4 | no-cache | "2232" | | 200 | | 5 | no-cache | "2222" | | 200 | | 6 | no-cache | | | 200 | | 7 | max-age=0 | "2232" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 8 | max-age=0 | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 9 | max-age=0 | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 10 | max-age=0 | "2232" | | 200 | | 11 | max-age=0 | "2222" | | 200 | | 12 | max-age=0 | | | 200 | | 13 | | "2232" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 14 | | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 15 | | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 16 | | "2232" | | 200 | | 17 | | "2222" | | 200 | | 18 | | | | 200 | '--------+----------------------+----------------------+----------------------+---------'
ã“ã“ã‹ã‚‰åˆ†ã‹ã‚‹ã®ã¯If-None-Matchヘッダをé€ã‚‹ã¨ã€æœ‰ç„¡ã‚’言ã‚ã•ãšã‚ャッシュãŒç„¡åŠ¹ã«ãªã‚Šã€æ–°ã—ã„コンテンツをWebサーãƒãƒ¼ãŒè¿”ã™ã£ã¦äº‹ã€‚
Cache-Controlã®no-cache, max-age=0ã¨ã‹ã¯å…¨ç„¶ç„¡é–¢ä¿‚。
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FileETag: Size, ExpiresActive Offã®å ´åˆ
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test2 results: .--------+----------------------+----------------------+----------------------+---------. | no | Cache-Control | If-None-Match | If-Modified-Since | status | +--------+----------------------+----------------------+----------------------+---------+ | 1 | no-cache | "2232" | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 2 | no-cache | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 3 | no-cache | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 4 | no-cache | "2232" | | 304 | | 5 | no-cache | "2222" | | 200 | | 6 | no-cache | | | 200 | | 7 | max-age=0 | "2232" | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 8 | max-age=0 | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 9 | max-age=0 | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 10 | max-age=0 | "2232" | | 304 | | 11 | max-age=0 | "2222" | | 200 | | 12 | max-age=0 | | | 200 | | 13 | | "2232" | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 14 | | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 15 | | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 16 | | "2232" | | 304 | | 17 | | "2222" | | 200 | | 18 | | | | 200 | '--------+----------------------+----------------------+----------------------+---------'
æ£ã—ã„ETagã‚’é€ã£ã¦ã‚Œã°ã€304ãŒè¿”ã£ã¦æ¥ã‚‹ã€‚逆ã«ETagãŒèª¤ã£ã¦ã„ã‚‹ã¨ç„¡æ¡ä»¶ã«æ–°ã—ã„コンテンツをå–らãªãã¦ã¯ãªã‚‰ãªã„。
ã‚ã¨ã¯test1ã¨åŒç‰ã€‚
ã‚„ã¯ã‚ŠCache-Controlã¯ç„¡é–¢ä¿‚ã£ã½ãƒã€‚
FileETag: Size, ExpiresActive Onã®å ´åˆ
çµæžœã¯test2ã¨åŒã˜ã€‚
test3 results: .--------+----------------------+----------------------+----------------------+---------. | no | Cache-Control | If-None-Match | If-Modified-Since | status | +--------+----------------------+----------------------+----------------------+---------+ | 1 | no-cache | "2232" | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 2 | no-cache | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 3 | no-cache | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 4 | no-cache | "2232" | | 304 | | 5 | no-cache | "2222" | | 200 | | 6 | no-cache | | | 200 | | 7 | max-age=0 | "2232" | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 8 | max-age=0 | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 9 | max-age=0 | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 10 | max-age=0 | "2232" | | 304 | | 11 | max-age=0 | "2222" | | 200 | | 12 | max-age=0 | | | 200 | | 13 | | "2232" | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 14 | | "2222" | Tue, 14 Aug 2007 07- | 200 | | | | | :59:19 GMT | | | 15 | | | Tue, 14 Aug 2007 07- | 304 | | | | | :59:19 GMT | | | 16 | | "2232" | | 304 | | 17 | | "2222" | | 200 | | 18 | | | | 200 | '--------+----------------------+----------------------+----------------------+---------'
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Cache-Control: max-age=300 Expires: Tue, 14 Aug 2007 08:43:02 GMT
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