2018/3/3に行われた YAPC::Okinawa 2018 ONNASON で発表したトークのスライドです。

11. 🙇

13. n
/wp-content/uploads/*

23. # aws s3 sync
/var/www/sites/www.gaiax.co.jp/wp-content/uploads/
s3:// /wp-content/uploads/

24. #!/usr/bin/env perl
use strict;
use warnings;
use File::ChangeNotify;
my $watcher = File::ChangeNotify->instantiate_watcher(
directories => ["/var/www/sites/www.gaiax.co.jp/wp-content/uploads"],
);
while ( my @events = $watcher->wait_for_events() ) {
# TODO: aws s3 sync
system "aws", "s3", "sync", "--delete",
"/var/www/sites/www.gaiax.co.jp/wp-content/",
"s3://gxofficial-static/wp-content/";
}

31. PerlOutputFilterHandler

32. package ModPerl::WordPress::StaticURLRewriter;
# e.g.
# # in VirtualHost block directive
# <Files index.php>
# PerlOutputFilterHandler ModPerl::WordPress::StaticURLRewriter
# </Files>
#
use strict;
use warnings;
use base qw(Apache2::Filter);
use Apache2::Const -compile => qw(OK);
sub handler : FilterRequestHandler {
my $f = shift; # filter object
...
return Apache2::Const::OK;
}
1;

33. use constant BUFF_LEN => 1024;
sub handler : FilterRequestHandler {
my $f = shift;
unless ($f->ctx) {
$f->r->headers_out->unset('Content-Length');
$f->ctx(1);
}
my $content = '';
while ($f->read(my $buffer, BUFF_LEN)) {
$content .= $buffer;
}
### $content ###
$f->print($content);
if ( $f->seen_eos ) {
my $footer = "<!-- WRITE FOOTER IF EXIST -->";
$f->print($footer);
}
return Apache2::Const::OK;
}

34. $content
$content =~ s{(?<=<img)([^>]+)}{
my $in_img = $1;
$in_img =~ s{(?<=bsrc=(['"]))$PREFIX_SELF(.*?)(?=1)}{$PREFIX_S3$2};
$in_img;
}eg;
$content =~ s{(?<=<img)([^>]+)}{
$1 =~ s{(?<=bsrc=(['"]))$PREFIX_SELF(.*?)(?=1)}{$PREFIX_S3$2}r
}eg;

36. PerlMapToStorageHandler

38. package ModPerl::WordPress::CacheManager;
# e.g.
# # in VirtualHost block directive
# PerlMapToStorageHandler ModPerl::WordPress::CacheManager
use strict;
use warnings;
use Apache2::RequestRec ();
use Apache2::Const -compile => qw(OK DECLINED);
sub handler {
my $r = shift; # request object
# $r->uri() $filename
# $r->filename($filename)
...
return Apache2::Const::DECLINED;
}
1;

39. package ModPerl::WordPress::CacheManager;
use strict;
use warnings;
use Apache2::RequestRec ();
use Apache2::RequestUtil (); # for pnotes method
use Apache2::Const -compile => qw(OK DECLINED);
use APR::Table (); # for notes method
use File::Basename qw(dirname);
use File::Path qw(make_path);
use constant CACHE_LIFETIME => 3600;
sub handler {
my $r = shift;
if ( !is_cache_enable($r) ) {
return Apache2::Const::DECLINED;
}
manage_cache($r);
return Apache2::Const::DECLINED;
}

40. package ModPerl::WordPress::CacheManager;
# (snip)
sub is_cache_enable {
my $r = shift;
return $r->uri eq '/index.php'; # WordPress /index.php (entry-point)
}
sub manage_cache {
my $r = shift;
my $cache_filename = guess_cache_filename($r);
$r->notes->set( mpwp_cache_filename => $cache_filename );
if ( !-f $cache_filename
|| time - (stat _)[9] > CACHE_LIFETIME ) { # 9=mtime
$r->pnotes( mpwp_cache_generate_cb => &mpwp_cache_filename );
# ...
make_path(dirname($cache_filename));
} else {
$r->handler('default-handler');
$r->filename($cache_filename);
}
}

41. package ModPerl::WordPress::CacheManager;
# (snip)
sub mpwp_cache_filename {
my $f = shift;
my $contents_ref = shift; die if ref $contents_ref ne 'SCALAR';
my $filter_phase = !$f->ctx ? "INITIAL"
: $f->seen_eos ? "SEEN_EOS" : "IN_PROGRESS";
my $cache_filename = $f->r->notes->get("mpwp_cache_filename");
if ( $filter_phase eq "INITIAL" ) {
unlink $cache_filename; # remove old cache
}
if ( open my $fh, '>>', "$cache_filename.$$" ) {
print {$fh} $$contents_ref;
}
if ( $filter_phase eq "SEEN_EOS" ) {
rename "$cache_filename.$$" => $cache_filename;
}
}

42. aws s3
sync

43. aws s3
sync
🤝

44. aws s3
sync
🤝

49. http://www.gaiax.co.jp/blog/natalia03/