| 1 |
package Frey::Web; |
package Frey::Web; |
| 2 |
use Moose::Role; |
use Moose::Role; |
| 3 |
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|
| 4 |
use Continuity::Widget::DomNode; |
with 'Frey::Session'; |
| 5 |
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|
| 6 |
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use Frey::Types; |
| 7 |
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|
| 8 |
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#use Continuity::Widget::DomNode; |
| 9 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
| 10 |
use Carp qw/confess/; |
use Carp qw/confess cluck/; |
| 11 |
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use File::Slurp; |
| 12 |
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|
| 13 |
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use Frey::Bookmarklet; |
| 14 |
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use Frey::ClassBrowser; |
| 15 |
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use Frey::INC; |
| 16 |
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| 17 |
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use Frey::SVK; |
| 18 |
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| 19 |
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our @head = ( 'static/frey.css' ); |
| 20 |
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|
| 21 |
has 'head' => ( |
has 'request_url' => ( |
| 22 |
is => 'rw', |
is => 'rw', |
| 23 |
isa => 'ArrayRef[Str]', |
isa => 'Uri', coerce => 1, |
| 24 |
default => sub { [] }, |
default => '/', |
| 25 |
); |
); |
| 26 |
|
|
| 27 |
sub dom2html { |
has 'title' => ( |
| 28 |
# warn "## dom2html ",dump( @_ ); |
is => 'rw', |
| 29 |
return Continuity::Widget::DomNode->create( @_ )->to_string; |
isa => 'Str', |
| 30 |
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lazy => 1, |
| 31 |
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default => sub { |
| 32 |
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my ($self) = @_; |
| 33 |
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ref($self); |
| 34 |
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}, |
| 35 |
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); |
| 36 |
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|
| 37 |
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has 'content_type' => ( |
| 38 |
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is => 'rw', |
| 39 |
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isa => 'Str', |
| 40 |
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default => 'text/html', |
| 41 |
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documentation => 'Content-type header', |
| 42 |
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); |
| 43 |
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|
| 44 |
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has 'dump_max_bytes' => ( |
| 45 |
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is => 'rw', |
| 46 |
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isa => 'Int', |
| 47 |
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default => 4096, |
| 48 |
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documentation => 'maximum dump size sent to browser before truncation', |
| 49 |
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); |
| 50 |
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|
| 51 |
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has 'inline_smaller_than' => ( |
| 52 |
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is => 'rw', |
| 53 |
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isa => 'Int', |
| 54 |
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default => 10240, |
| 55 |
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documentation => 'inline JavaScript and CSS to reduce round-trips', |
| 56 |
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); |
| 57 |
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| 58 |
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has 'html_dump_width' => ( |
| 59 |
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documentation => 'crop longer lines in dumps', |
| 60 |
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is => 'rw', |
| 61 |
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isa => 'Int', |
| 62 |
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# required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them |
| 63 |
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default => 128, |
| 64 |
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); |
| 65 |
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| 66 |
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my %escape = ('<'=>'<', '>'=>'>', '&'=>'&', '"'=>'"'); |
| 67 |
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my $escape_re = join '|' => keys %escape; |
| 68 |
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| 69 |
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sub html_escape { |
| 70 |
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my ( $self, $html ) = @_; |
| 71 |
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$html =~ s/($escape_re)/$escape{$1}/g; |
| 72 |
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return $html; |
| 73 |
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} |
| 74 |
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| 75 |
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sub html_dump { |
| 76 |
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my ( $self, $dump ) = @_; |
| 77 |
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$dump = dump( $dump ) if ref($dump); |
| 78 |
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my $width = $self->html_dump_width; |
| 79 |
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$dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs; |
| 80 |
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$dump = $self->html_escape( $dump ); |
| 81 |
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$dump =~ s{\Q...\E}{…}gs; |
| 82 |
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return "<code>$dump</code>"; |
| 83 |
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} |
| 84 |
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| 85 |
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sub popup { my $self = shift; $self->popup_dropdown('popup', @_); } |
| 86 |
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sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); } |
| 87 |
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| 88 |
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our $re_html = qr{<(?:!--.+?--|(\w+).+?/\1)>}s; # relaxed html check for one semi-valid tag |
| 89 |
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| 90 |
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sub popup_dropdown { |
| 91 |
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my ( $self, $type, $name, $content, $full ) = @_; |
| 92 |
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| 93 |
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$content = $self->html_dump($content) if ref $content; |
| 94 |
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| 95 |
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$content = qq|<span>$content</span>| unless $content =~ m{^\s*<(span|a|code).+?/\1>\s*}; |
| 96 |
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| 97 |
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warn "## $type [$name] = ", length( $content ), " bytes" if $self->debug; |
| 98 |
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| 99 |
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if ( $name =~ m{::} && $name !~ $re_html ) { |
| 100 |
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return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|; |
| 101 |
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} else { |
| 102 |
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return qq|<span class="frey-$type">$name $content</span>\n|; |
| 103 |
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} |
| 104 |
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} |
| 105 |
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| 106 |
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sub _inline_path { |
| 107 |
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my ( $self, $path ) = @_; |
| 108 |
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-s $path < $self->inline_smaller_than; |
| 109 |
} |
} |
| 110 |
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|
| 111 |
sub _head_html { |
sub _head_html { |
| 112 |
my $self = shift; |
my $self = shift; |
| 113 |
my $out = ''; |
my $out = ''; |
| 114 |
foreach my $path ( @{ $self->head } ) { |
foreach my $path ( @head ) { |
| 115 |
$path =~ s!^/!!; |
$path =~ s!^/!!; |
| 116 |
if ( $path =~ m/\.js$/ ) { |
if ( $path =~ m/\.js$/ ) { |
| 117 |
$out .= qq|<script type="text/javascript" src="/$path"></script>|; |
$out .= $self->_inline_path( $path ) ? |
| 118 |
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qq|<!-- $path --><script type="text/javascript">\n| . read_file($path) . qq|\n</script>| : |
| 119 |
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qq|<script type="text/javascript" src="/$path"></script>|; |
| 120 |
} elsif ( $path =~ m/\.css$/ ) { |
} elsif ( $path =~ m/\.css$/ ) { |
| 121 |
$out .= qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|; |
$out .= $self->_inline_path( $path ) ? |
| 122 |
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qq|<!-- $path --><style type="text/css">\n| . read_file( $path ) . qq|\n</style>| : |
| 123 |
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qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|; |
| 124 |
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} elsif ( $path =~ m{<.+>}s ) { |
| 125 |
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$out .= $path; |
| 126 |
} else { |
} else { |
| 127 |
confess "don't know how to render $path"; |
confess "don't know how to render $path"; |
| 128 |
} |
} |
| 129 |
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$out .= "\n"; |
| 130 |
} |
} |
| 131 |
return $out; |
return $out; |
| 132 |
} |
} |
| 137 |
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|
| 138 |
my $size = $o->add_head( 'path/to/external.css' ); |
my $size = $o->add_head( 'path/to/external.css' ); |
| 139 |
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|
| 140 |
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$o->add_head( '<!-- html content -->' ); |
| 141 |
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|
| 142 |
=cut |
=cut |
| 143 |
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|
| 144 |
sub add_head { |
sub add_head { |
| 146 |
return if ! defined $path || $path eq ''; |
return if ! defined $path || $path eq ''; |
| 147 |
$path =~ s!^/!!; |
$path =~ s!^/!!; |
| 148 |
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|
| 149 |
if ( -e $path ) { |
if ( $path =~ $re_html ) { |
| 150 |
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push @head, $path; |
| 151 |
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} elsif ( -e $path ) { |
| 152 |
if ( $path =~ m/\.(?:js|css)$/ ) { |
if ( $path =~ m/\.(?:js|css)$/ ) { |
| 153 |
push @{ $self->head }, $path; |
push @head, $path; |
| 154 |
} else { |
} else { |
| 155 |
confess "can't add_head( $path ) it's not js or css"; |
confess "can't add_head( $path ) it's not js or css"; |
| 156 |
} |
} |
| 157 |
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return -s $path; |
| 158 |
} else { |
} else { |
| 159 |
confess "can't find $path: $!"; |
confess "can't find $path: $!"; |
| 160 |
} |
} |
| 161 |
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|
| 162 |
return -s $path; |
} |
| 163 |
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|
| 164 |
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sub add_css { |
| 165 |
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my ($self,$css) = @_; |
| 166 |
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my ( $package, $path, $line ) = caller; |
| 167 |
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$self->add_head( qq| |
| 168 |
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<style type="text/css"> |
| 169 |
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/* via package $package at $path line $line */ |
| 170 |
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$css |
| 171 |
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</style> |
| 172 |
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| ); |
| 173 |
} |
} |
| 174 |
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|
| 175 |
our $reload_counter = 0; |
our $reload_counter = 0; |
| 176 |
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|
| 177 |
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| 178 |
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=head2 page |
| 179 |
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| 180 |
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$self->page( |
| 181 |
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title => 'page title', |
| 182 |
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head => '<!-- optional head markup -->', |
| 183 |
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body => '<b>Page Body</b>', |
| 184 |
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); |
| 185 |
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| 186 |
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=cut |
| 187 |
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|
| 188 |
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our @status; |
| 189 |
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sub status { @status }; |
| 190 |
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|
| 191 |
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our $icon_html; |
| 192 |
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|
| 193 |
sub page { |
sub page { |
| 194 |
my $self = shift; |
my $self = shift; |
| 195 |
my $a = {@_}; |
my $a = {@_}; |
| 196 |
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|
| 197 |
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warn "## page ",dump($a); |
| 198 |
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|
| 199 |
$reload_counter++; |
$reload_counter++; |
| 200 |
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|
| 201 |
my $html = qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>| |
my $status_line = ''; |
| 202 |
. $self->_head_html |
|
| 203 |
. '<title>' . ( $a->{title} || ref($self) ) . '</title>' |
unshift @status, { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup }; |
| 204 |
. ( $a->{head} || '' ) |
# unshift @status, { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup }; |
| 205 |
. '</head><body>' |
unshift @status, { 'INC' => Frey::INC->new->as_markup }; |
| 206 |
. ( $a->{body} || '<!-- no body -->' ) |
|
| 207 |
# . qq|<div class="frey-status-line"> <a href="/">Frey</a> $Frey::VERSION <a href="?reload=$reload_counter">reload</a> </div>| |
foreach my $part ( @status ) { |
| 208 |
. '</body></html>' |
foreach my $name ( keys %$part ) { |
| 209 |
; |
$status_line .= $self->popup( $name, $part->{$name} ); |
| 210 |
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} |
| 211 |
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} |
| 212 |
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|
| 213 |
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my $url = $self->request_url; |
| 214 |
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$url =~ s{\?reload=\d+}{}; |
| 215 |
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|
| 216 |
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my $body = $a->{body}; |
| 217 |
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$body ||= $self->as_markup if $self->can('as_markup'); |
| 218 |
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if ( $self->content_type !~ m{html} ) { |
| 219 |
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warn "# return only $self body ", $self->content_type; |
| 220 |
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return $body |
| 221 |
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} elsif ( ! defined $body ) { |
| 222 |
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warn "# no body"; |
| 223 |
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$body = '<!-- no body -->'; |
| 224 |
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} |
| 225 |
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|
| 226 |
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$status_line .= $self->warnings_html; |
| 227 |
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|
| 228 |
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my ($exit,$description) = ('exit','stop server'); |
| 229 |
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($exit,$description) = ('restart','restart server') |
| 230 |
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if $ENV{FREY_RESTART}; # tune labels on exit link |
| 231 |
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|
| 232 |
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my $right = |
| 233 |
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qq| |
| 234 |
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<span class="right"> |
| 235 |
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<a title="reload $url" href="/reload$url">reload</a> |
| 236 |
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<a title="$description" href="/exit$url">$exit</a> |
| 237 |
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</span> |
| 238 |
|
|; |
| 239 |
|
|
| 240 |
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my $svk = Frey::SVK->new; |
| 241 |
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my $info = $svk->info; |
| 242 |
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my $revision = $svk->info->{Revision} || ''; |
| 243 |
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$revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)}; |
| 244 |
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|
| 245 |
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$self->add_icon unless $icon_html; |
| 246 |
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|
| 247 |
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my $html = join("\n", |
| 248 |
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qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|, |
| 249 |
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$self->_head_html, |
| 250 |
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'<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>', |
| 251 |
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'<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">', |
| 252 |
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( $icon_html || '<!-- no icon -->' ), |
| 253 |
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( $a->{head} || '' ), |
| 254 |
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qq| |
| 255 |
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</head><body> |
| 256 |
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$body |
| 257 |
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<div class="frey-status-line"> |
| 258 |
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<a href="/">Frey</a> $Frey::VERSION $revision |
| 259 |
|
$status_line |
| 260 |
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$right |
| 261 |
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</div> |
| 262 |
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</body></html> |
| 263 |
|
|, |
| 264 |
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); |
| 265 |
|
|
| 266 |
warn "## >>> page ",length($html), " bytes\n" if $self->debug; |
warn "## >>> page ",length($html), " bytes\n" if $self->debug; |
| 267 |
|
|
| 268 |
return $html; |
return $html; |
| 269 |
} |
} |
| 270 |
|
|
| 271 |
|
=head2 editor |
| 272 |
|
|
| 273 |
|
Create HTML editor link with optional line and title |
| 274 |
|
|
| 275 |
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my $html = $self->editor( $class, $line, $title ); |
| 276 |
|
|
| 277 |
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=cut |
| 278 |
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|
| 279 |
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sub editor { |
| 280 |
|
my ( $self, $class, $line, $title ) = @_; |
| 281 |
|
confess "need class" unless $class; |
| 282 |
|
if ( ! defined $title ) { |
| 283 |
|
$title = "edit $class"; |
| 284 |
|
$title .= " line $line" if $line; |
| 285 |
|
} |
| 286 |
|
$line ||= 1; |
| 287 |
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qq|<a target="editor" href="/editor+$class+$line"| . |
| 288 |
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( $title ? qq| title="$title"| : '' ) . |
| 289 |
|
qq|>$class</a>|; |
| 290 |
|
} |
| 291 |
|
|
| 292 |
|
=head2 editor_links |
| 293 |
|
|
| 294 |
|
Create HTML links to editor for perl error message |
| 295 |
|
|
| 296 |
|
my $html = $self->editor_links( $error ) |
| 297 |
|
|
| 298 |
|
=cut |
| 299 |
|
|
| 300 |
|
sub editor_links { |
| 301 |
|
my ( $self, $error ) = @_; |
| 302 |
|
|
| 303 |
|
$error =~ s{at\s+(\S+)\s+line\s+(\d+)} |
| 304 |
|
{at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm; |
| 305 |
|
|
| 306 |
|
$error =~ s{(via package ")([\w:]+)(")} |
| 307 |
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{$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm; |
| 308 |
|
|
| 309 |
|
return $error; |
| 310 |
|
} |
| 311 |
|
|
| 312 |
|
sub error { |
| 313 |
|
my $self = shift; |
| 314 |
|
my $error = join(" ", @_); |
| 315 |
|
|
| 316 |
|
my @backtrace = $self->backtrace; |
| 317 |
|
$error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace; |
| 318 |
|
|
| 319 |
|
warn "ERROR: $error\n"; |
| 320 |
|
return |
| 321 |
|
qq|<pre class="frey-error">| |
| 322 |
|
. $self->editor_links( $error ) . |
| 323 |
|
qq|</pre>| |
| 324 |
|
; |
| 325 |
|
} |
| 326 |
|
|
| 327 |
|
=head1 Status line |
| 328 |
|
|
| 329 |
|
=head2 add_status |
| 330 |
|
|
| 331 |
|
$self->add_status( name => { some => 'data' } ); |
| 332 |
|
|
| 333 |
|
$self->add_status( "append to last status popup" ); |
| 334 |
|
|
| 335 |
|
=cut |
| 336 |
|
|
| 337 |
|
sub add_status { |
| 338 |
|
my ( $self, $data ) = @_; |
| 339 |
|
if ( ref($data) ) { |
| 340 |
|
push @status, $data; |
| 341 |
|
} else { |
| 342 |
|
$status[ $#status ]->{added} = $data; |
| 343 |
|
} |
| 344 |
|
} |
| 345 |
|
|
| 346 |
|
=head2 clean_status |
| 347 |
|
|
| 348 |
|
Called at beginning of each request |
| 349 |
|
|
| 350 |
|
$self->clean_status; |
| 351 |
|
|
| 352 |
|
=cut |
| 353 |
|
|
| 354 |
|
sub clean_status { |
| 355 |
|
my ($self) = shift; |
| 356 |
|
@head = (); |
| 357 |
|
@status = (); |
| 358 |
|
$icon_html = ''; |
| 359 |
|
} |
| 360 |
|
|
| 361 |
|
=head2 status_parts |
| 362 |
|
|
| 363 |
|
Dump all status line parts |
| 364 |
|
|
| 365 |
|
$self->status_parts |
| 366 |
|
|
| 367 |
|
=cut |
| 368 |
|
|
| 369 |
|
sub status_parts { |
| 370 |
|
warn "## status parts ", dump( map { keys %$_ } @status ); |
| 371 |
|
} |
| 372 |
|
|
| 373 |
|
=for debug |
| 374 |
|
|
| 375 |
|
sub DEMOLISH { |
| 376 |
|
my ( $self ) = @_; |
| 377 |
|
warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status; |
| 378 |
|
} |
| 379 |
|
|
| 380 |
|
=cut |
| 381 |
|
|
| 382 |
|
=head2 add_icon |
| 383 |
|
|
| 384 |
|
Frey::Foo->add_icon; # /static/icons/Frey/Foo.png |
| 385 |
|
Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png |
| 386 |
|
|
| 387 |
|
=cut |
| 388 |
|
|
| 389 |
|
sub icon_path { |
| 390 |
|
my ($self,$class,$variant) = @_; |
| 391 |
|
my $icon = $class; |
| 392 |
|
$icon =~ s{::}{/}g; |
| 393 |
|
$icon .= "/$variant" if $variant; |
| 394 |
|
my $path = 'static/icons/' . $icon . '.png'; |
| 395 |
|
if ( -e $path ) { |
| 396 |
|
warn "# $class from $self icon_path $path" if $self->debug; |
| 397 |
|
return $path; |
| 398 |
|
} else { |
| 399 |
|
$self->TODO( "add $path icon for $class" ); |
| 400 |
|
return undef; |
| 401 |
|
} |
| 402 |
|
} |
| 403 |
|
|
| 404 |
|
sub add_icon { |
| 405 |
|
my ($self,$variant) = @_; |
| 406 |
|
|
| 407 |
|
my $class = ref($self); |
| 408 |
|
$class = $self->class if $self->can('class'); |
| 409 |
|
my $icon_path = $self->icon_path( $class, $variant ) || return; |
| 410 |
|
|
| 411 |
|
$icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|; |
| 412 |
|
warn "# using icon $icon_path"; |
| 413 |
|
|
| 414 |
|
=for later |
| 415 |
|
|
| 416 |
|
# FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work! |
| 417 |
|
my $ico_path = $icon_path; |
| 418 |
|
$ico_path =~ s{png$}{ico}; |
| 419 |
|
if ( ! -e $ico_path ) { |
| 420 |
|
system "convert $icon_path $ico_path"; |
| 421 |
|
warn "# convert $icon_path $ico_path : $@"; |
| 422 |
|
} |
| 423 |
|
$icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path; |
| 424 |
|
|
| 425 |
|
=cut |
| 426 |
|
|
| 427 |
|
} |
| 428 |
|
|
| 429 |
|
my $warn_colors = { |
| 430 |
|
'#' => '#444', |
| 431 |
|
'##' => '#888', |
| 432 |
|
}; |
| 433 |
|
|
| 434 |
|
my $multiline_markers = { |
| 435 |
|
'(' => ')', |
| 436 |
|
'{' => '}', |
| 437 |
|
'[' => ']', |
| 438 |
|
'"' => '"', |
| 439 |
|
}; |
| 440 |
|
|
| 441 |
|
my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']'; |
| 442 |
|
warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re"; |
| 443 |
|
|
| 444 |
|
sub log_path { |
| 445 |
|
$Frey::Bootstrap::log_path || warn "no log_path?"; |
| 446 |
|
} |
| 447 |
|
|
| 448 |
|
sub warnings_html { |
| 449 |
|
my ($self,$level) = shift; |
| 450 |
|
$level ||= $self->debug, |
| 451 |
|
my $path = $self->log_path; |
| 452 |
|
|
| 453 |
|
my $warnings; |
| 454 |
|
my $line = 0; |
| 455 |
|
my $multiline_end; |
| 456 |
|
|
| 457 |
|
open(my $log, '<', $path) || die "can't open $path: $!"; |
| 458 |
|
while(<$log>) { |
| 459 |
|
chomp; |
| 460 |
|
$line++; |
| 461 |
|
|
| 462 |
|
my $style = ''; |
| 463 |
|
|
| 464 |
|
if ( $multiline_end ) { |
| 465 |
|
if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) { |
| 466 |
|
# warn "## $line end of $multiline_end in '$_'\n"; |
| 467 |
|
undef $multiline_end; |
| 468 |
|
} else { |
| 469 |
|
# warn "## $line skipped\n"; |
| 470 |
|
} |
| 471 |
|
} elsif ( m{^(#*)\s+} ) { |
| 472 |
|
my $l = $1 ? length($1) : 0; |
| 473 |
|
if ( $l > $level ) { |
| 474 |
|
undef $multiline_end; |
| 475 |
|
$multiline_end = $multiline_markers->{$1} if m{($multiline_re)$}; |
| 476 |
|
# warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end; |
| 477 |
|
next; |
| 478 |
|
} |
| 479 |
|
|
| 480 |
|
$style = $warn_colors->{$1} |
| 481 |
|
? ' style="color:' . $warn_colors->{$1} . '"' |
| 482 |
|
: ''; |
| 483 |
|
|
| 484 |
|
my $msg = $self->html_escape( $_ ); |
| 485 |
|
my $spacer = ' '; |
| 486 |
|
if ( length($msg) > $self->html_dump_width ) { |
| 487 |
|
$msg = substr( $msg, 0, $self->html_dump_width ); |
| 488 |
|
$spacer = '…' |
| 489 |
|
} |
| 490 |
|
$msg =~ s{^\s}{ }g; |
| 491 |
|
$warnings .= qq|<tt$style>$msg</tt>$spacer<small><a target="editor" href="/editor+$path+$line">+$line</a></small><br/>|; |
| 492 |
|
# FIXME <tt> should be <code> but CSS hates me |
| 493 |
|
} |
| 494 |
|
} |
| 495 |
|
close($log) || die "can't close $path: $!"; |
| 496 |
|
|
| 497 |
|
return |
| 498 |
|
qq|<span class="frey-popup"><a target="editor" href="/editor+$path+$line" title="open $path level $level">warn</a><span>| |
| 499 |
|
. $self->editor_links( $warnings ) |
| 500 |
|
. qq|</span></span>| |
| 501 |
|
; |
| 502 |
|
} |
| 503 |
|
|
| 504 |
|
|
| 505 |
|
=head2 backtrace |
| 506 |
|
|
| 507 |
|
Show backtrace with links to editor |
| 508 |
|
|
| 509 |
|
my @backtrace = $self->backtrace; |
| 510 |
|
|
| 511 |
|
=cut |
| 512 |
|
|
| 513 |
|
sub backtrace { |
| 514 |
|
my ($self) = @_; |
| 515 |
|
|
| 516 |
|
my @backtrace; |
| 517 |
|
foreach ( 0 .. 5 ) { |
| 518 |
|
my ( |
| 519 |
|
$package,$path,$line |
| 520 |
|
# subroutine hasargs |
| 521 |
|
# wantarray evaltext is_require |
| 522 |
|
# hints bitmask hinthash |
| 523 |
|
) = caller($_) or last; |
| 524 |
|
|
| 525 |
|
push @backtrace, |
| 526 |
|
qq|via package $package at $path line $line|; |
| 527 |
|
} |
| 528 |
|
warn "# backtrace: ", dump( @backtrace ) if @backtrace; |
| 529 |
|
return @backtrace; |
| 530 |
|
} |
| 531 |
|
|
| 532 |
1; |
1; |
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