|  line  | 
 stmt  | 
 bran  | 
 cond  | 
 sub  | 
 pod  | 
 time  | 
 code  | 
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1
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 package Plack::Middleware::BasicStyle;  | 
| 
2
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    | 
| 
3
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1
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1
  
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84331
 | 
 use 5.014000;  | 
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1
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 | 
5
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    | 
| 
4
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1
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1
  
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7
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 use strict;  | 
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1
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3
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    | 
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1
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 | 
30
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    | 
| 
5
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1
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1
  
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7
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 use warnings;  | 
| 
 
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1
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3
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    | 
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1
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50
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    | 
| 
6
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    | 
| 
7
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1
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1
  
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374
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 use parent qw/Plack::Middleware/;  | 
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1
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342
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    | 
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1
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7
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    | 
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8
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    | 
| 
9
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1
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1
  
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15249
 | 
 use HTML::Parser;  | 
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1
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6957
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    | 
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1
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56
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    | 
| 
10
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1
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1
  
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472
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 use Plack::Request;  | 
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1
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 | 
78388
 | 
    | 
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1
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47
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    | 
| 
11
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1
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1
  
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11
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 use Plack::Util;  | 
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1
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3
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    | 
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1
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 | 
40
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    | 
| 
12
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1
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1
  
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10
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 use Plack::Util::Accessor qw/style any_content_type even_if_styled use_link_header/;  | 
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1
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4
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    | 
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1
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11
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    | 
| 
13
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    | 
| 
14
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 our $VERSION = '0.001001';  | 
| 
15
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 our $DEFAULT_STYLE = <<'EOF' =~ y/\n\t //rd;  | 
| 
16
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   | 
| 
30
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 EOF  | 
| 
31
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    | 
| 
32
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 sub prepare_app {  | 
| 
33
 | 
13
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13
  
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1
  
 | 
14593
 | 
 	my ($self) = @_;  | 
| 
34
 | 
 
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 	$self->{link_header} =  | 
| 
35
 | 
13
 | 
  
100
  
 | 
 
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 | 
 
 | 
50
 | 
 	  sprintf '<%s>; rel=stylesheet', $self->use_link_header  | 
| 
36
 | 
 
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 	  if $self->use_link_header;  | 
| 
37
 | 
13
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 | 
  
 66
  
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 | 
157
 | 
 	$self->style($self->style // $DEFAULT_STYLE);  | 
| 
38
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 }  | 
| 
39
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    | 
| 
40
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 sub _content_type_ok {  | 
| 
41
 | 
12
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 | 
  
12
  
 | 
 
 | 
32
 | 
 	my ($self, $hdrs) = @_;  | 
| 
42
 | 
12
 | 
  
100
  
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 | 
41
 | 
 	return 1 if $self->any_content_type;  | 
| 
43
 | 
11
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 | 
79
 | 
 	my $content_type =  | 
| 
44
 | 
 
 | 
 
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 | 
 
 | 
 	  Plack::Util::header_get($hdrs, 'Content-Type');  | 
| 
45
 | 
11
 | 
  
100
  
 | 
 
 | 
 
 | 
 
 | 
180
 | 
 	return '' unless $content_type;  | 
| 
46
 | 
10
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 | 
66
 | 
 	$content_type =~ m,text/html,is;  | 
| 
47
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 }  | 
| 
48
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    | 
| 
49
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 sub call { ## no critic (Complexity)  | 
| 
50
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13
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13
  
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1
  
 | 
46614
 | 
 	my ($self, $env) = @_;  | 
| 
51
 | 
13
 | 
  
100
  
 | 
 
 | 
 
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 | 
53
 | 
 	if ($self->use_link_header) {  | 
| 
52
 | 
2
 | 
 
 | 
 
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 | 
26
 | 
 		my $req = Plack::Request->new($env);  | 
| 
53
 | 
2
 | 
  
100
  
 | 
 
 | 
 
 | 
 
 | 
27
 | 
 		if (lc $req->path eq lc $self->use_link_header) {  | 
| 
54
 | 
1
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9
 | 
 			my $days30 = 30 * 86_400;  | 
| 
55
 | 
1
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 | 
3
 | 
 			my @hdrs = (  | 
| 
56
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 				'Content-Length' => length $self->style,  | 
| 
57
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 				'Content-Type'   => 'text/css',  | 
| 
58
 | 
 
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 				'Cache-Control'  => "max-age=$days30",  | 
| 
59
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 | 
 			);  | 
| 
60
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1
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 | 
8
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 			return [200, \@hdrs, [$self->style]]  | 
| 
61
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 		}  | 
| 
62
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 | 
 	}  | 
| 
63
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    | 
| 
64
 | 
12
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 | 
164
 | 
 	my $res = $self->app->($env);  | 
| 
65
 | 
12
 | 
  
 50
  
 | 
  
 33
  
 | 
 
 | 
 
 | 
208
 | 
 	if (ref $res ne 'ARRAY'  | 
| 
 
 | 
 
 | 
  
100
  
 | 
  
 33
  
 | 
 
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 | 
    | 
| 
66
 | 
 
 | 
 
 | 
 
 | 
 
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 | 
 
 | 
 		  || @$res < 3  | 
| 
67
 | 
 
 | 
 
 | 
 
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 | 
 
 | 
 		  || ref $res->[2] ne 'ARRAY' ) {  | 
| 
68
 | 
0
 | 
 
 | 
 
 | 
 
 | 
 
 | 
0
 | 
 		$res  | 
| 
69
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 	} elsif (!$self->_content_type_ok($res->[1])) {  | 
| 
70
 | 
1
 | 
 
 | 
 
 | 
 
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 | 
7
 | 
 		$res  | 
| 
71
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 	} else {  | 
| 
72
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
34
 | 
 		my ($styled, $html_end, $head_end, $doctype_end);  | 
| 
73
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 		my $parser_callback = sub {  | 
| 
74
 | 
14
 | 
 
 | 
 
 | 
  
14
  
 | 
 
 | 
47
 | 
 			my ($tagname, $offset_end, $attr) = @_;  | 
| 
75
 | 
14
 | 
  
100
  
 | 
  
 33
  
 | 
 
 | 
 
 | 
57
 | 
 			$html_end //= $offset_end if $tagname eq 'html';  | 
| 
76
 | 
14
 | 
  
100
  
 | 
  
 33
  
 | 
 
 | 
 
 | 
46
 | 
 			$head_end //= $offset_end if $tagname eq 'head';  | 
| 
77
 | 
14
 | 
  
100
  
 | 
  
 33
  
 | 
 
 | 
 
 | 
75
 | 
 			$doctype_end //= $offset_end if $tagname eq 'doctype';  | 
| 
78
 | 
14
 | 
  
100
  
 | 
 
 | 
 
 | 
 
 | 
37
 | 
 			$styled = 1 if $tagname eq 'style';  | 
| 
79
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 			$styled = 1 if $tagname eq 'link'  | 
| 
80
 | 
14
 | 
  
100
  
 | 
  
 50
  
 | 
 
 | 
 
 | 
113
 | 
 			  && ($attr->{rel} // '') =~ /stylesheet/is;  | 
| 
 
 | 
 
 | 
 
 | 
  
 66
  
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
81
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
65
 | 
 		};  | 
| 
82
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
83
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
74
 | 
 		my $p = HTML::Parser->new(api_version => 3);  | 
| 
84
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
443
 | 
 		$p->report_tags(qw/style link html head/);  | 
| 
85
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
120
 | 
 		$p->handler(start => $parser_callback, 'tagname,offset_end,attr');  | 
| 
86
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
55
 | 
 		$p->handler(declaration => $parser_callback, 'tagname,offset_end,attr');  | 
| 
87
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
25
 | 
 		$p->parse($_) for @{$res->[2]};  | 
| 
 
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
93
 | 
    | 
| 
88
 | 
11
 | 
 
 | 
 
 | 
 
 | 
 
 | 
55
 | 
 		$p->eof;  | 
| 
89
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
90
 | 
11
 | 
  
100
  
 | 
  
100
  
 | 
 
 | 
 
 | 
42
 | 
 		return $res if $styled && !$self->even_if_styled;  | 
| 
91
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
92
 | 
9
 | 
  
100
  
 | 
 
 | 
 
 | 
 
 | 
38
 | 
 		if ($self->use_link_header) {  | 
| 
93
 | 
1
 | 
 
 | 
 
 | 
 
 | 
 
 | 
9
 | 
 			push @{$res->[1]}, 'Link', $self->{link_header};  | 
| 
 
 | 
1
 | 
 
 | 
 
 | 
 
 | 
 
 | 
7
 | 
    | 
| 
94
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 		} else {  | 
| 
95
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 			# If there's a , put the style right after it  | 
| 
96
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 			# Otherwise, if there's a , put the style right after it  | 
| 
97
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 			# Otherwise, if there's a , put the style right after it  | 
| 
98
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 			# Otherwise, put the style at the very beginning of the body  | 
| 
99
 | 
8
 | 
  
100
  
 | 
  
100
  
 | 
 
 | 
 
 | 
87
 | 
 			if ($head_end || $html_end || $doctype_end) {  | 
| 
 
 | 
 
 | 
 
 | 
  
100
  
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
100
 | 
5
 | 
 
 | 
 
 | 
 
 | 
 
 | 
11
 | 
 				my $body = join '', @{$res->[2]};  | 
| 
 
 | 
5
 | 
 
 | 
 
 | 
 
 | 
 
 | 
22
 | 
    | 
| 
101
 | 
5
 | 
 
 | 
  
100
  
 | 
 
 | 
 
 | 
32
 | 
 				my $pos = $head_end // $html_end // $doctype_end;  | 
| 
 
 | 
 
 | 
 
 | 
  
 66
  
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
102
 | 
5
 | 
 
 | 
 
 | 
 
 | 
 
 | 
39
 | 
 				substr $body, $pos, 0, $self->style;  | 
| 
103
 | 
5
 | 
 
 | 
 
 | 
 
 | 
 
 | 
47
 | 
 				$res->[2] = [$body]  | 
| 
104
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 			} else {  | 
| 
105
 | 
3
 | 
 
 | 
 
 | 
 
 | 
 
 | 
7
 | 
 				unshift @{$res->[2]}, $self->style  | 
| 
 
 | 
3
 | 
 
 | 
 
 | 
 
 | 
 
 | 
13
 | 
    | 
| 
106
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 			}  | 
| 
107
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 		}  | 
| 
108
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
109
 | 
9
 | 
 
 | 
 
 | 
 
 | 
 
 | 
163
 | 
 		$res  | 
| 
110
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 	}  | 
| 
111
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 }  | 
| 
112
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
    | 
| 
113
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 1;  | 
| 
114
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 
 | 
 __END__  |