lib/Frey/Web.pm

package Frey::Web;
use Moose::Role;

with 'Frey::Session';

use Frey::Types;

#use Continuity::Widget::DomNode;
use Data::Dump qw/dump/;
use Carp qw/confess cluck/;
use File::Slurp;

use Frey::Bookmarklet;
use Frey::ClassBrowser;
use Frey::INC;

use Frey::SVK;

use Text::Tabs; # expand, unexpand

our @head;
sub head { @head }

has 'request_url' => (
        is => 'rw',
        isa => 'Uri', coerce => 1,
        default => '/',
);

has 'title' => (
        is => 'rw',
        isa => 'Str',
        lazy => 1,
        default => sub {
                my ($self) = @_;
                ref($self);
        },
);

has 'content_type' => (
        is => 'rw',
        isa => 'Str',
        default => 'text/html',
        documentation => 'Content-type header',
);

has 'dump_max_bytes' => (
        is => 'rw',
        isa => 'Int',
        default => 4096,
        documentation => 'maximum dump size sent to browser before truncation',
);

has 'inline_smaller_than' => (
        is => 'rw',
        isa => 'Int',
        default => 10240,
        documentation => 'inline JavaScript and CSS to reduce round-trips',
);

has 'html_dump_width' => (
        documentation => 'crop longer lines in dumps',
        is => 'rw',
        isa => 'Int',
#       required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them
        default => 120,
);

my %escape = ('<'=>'&lt;', '>'=>'&gt;', '&'=>'&amp;', '"'=>'&quot;');
my $escape_re  = join '|' => keys %escape;

sub html_escape {
        my ( $self, $html ) = @_;
        $html =~ s/($escape_re)/$escape{$1}/g;
        return $html;
}

sub html_dump {
        my ( $self, $dump ) = @_;
        $dump = dump( $dump ) if ref($dump);
        my $width = $self->html_dump_width;
        $dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs;
        $dump = $self->html_escape( $dump );
        $dump =~ s{\Q...\E}{&hellip;}gs;
#       $dump =~ $self->editor_links( $dump ); # FIXME include this
        return "<code>$dump</code>";
}

sub popup    { my $self = shift; $self->popup_dropdown('popup',    @_); }
sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); }

our $re_html = qr{<(?:!--.+?--|(\w+).+?/\1|[^>]+/)>}s; # relaxed html check for one semi-valid tag

sub popup_dropdown {
        my ( $self, $type, $name, $content, $full ) = @_;

        $content = $self->html_dump($content) if ref $content;

        $content = qq|<span>$content</span>| unless $content =~ m{^\s*<(span|a|code).+?/\1>\s*};

        $content =~ s{<span>(<code>[^<]+</code>)</span>}{$1} && $self->TODO("code wrapped in span");

        warn "## $type [$name] = ", length( $content ), " bytes"; # if $self->debug; # FIXME

        if ( $name =~ m{::} && $name !~ $re_html ) {
                return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|;
        } elsif ( $name =~ s{^\s*(<a)\s+}{$1 class="frey-$type"} ) {
                return qq|$name $content\n|;
        } else {
                return qq|<span class="frey-$type">$name $content</span>\n|;
        }
}

sub _inline_path {
        my ( $self, $path ) = @_;
        -s $path < $self->inline_smaller_than;
}

sub _head_html {
        my $self = shift;
        my $out = '';
        foreach my $path ( @head ) {
                $path =~ s!^/!!;
                if ( $path =~ m/\.js$/ ) {
                        $out .= $self->_inline_path( $path ) ?
                                qq|<script type="text/javascript">\n/* inline $path */\n\n| . read_file($path) . qq|\n</script>| :
                                qq|<script type="text/javascript" src="/$path"></script>|;
                } elsif ( $path =~ m/\.css$/ ) {
                        $out .= $self->_inline_path( $path ) ?
                                qq|<style type="text/css">\n/* inline $path */\n\n| . read_file( $path ) . qq|\n</style>| :
                                qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
                } elsif ( $path =~ m{<.+>}s ) {
                        $out .= $path;
                } else {
                        confess "don't know how to render $path";
                }
                $out .= "\n";
        }
        return $out;
}

=head2 add_head

  $o->add_head( 'path/to/external.js' );

  my $size = $o->add_head( 'path/to/external.css' );

  $o->add_head( '<!-- html content -->' );

=cut

sub add_head {
        my ( $self, $path ) = @_;
        return if ! defined $path || $path eq '';
        $path =~ s!^/!!;

        if ( $path =~ $re_html ) {
                push @head, $path;
        } elsif ( -e $path ) {
                if ( $path =~ m/\.(?:js|css)$/ ) {
                        push @head, $path;
                } else {
                        confess "can't add_head( $path ) it's not js or css";
                }
                return -s $path;
        } else {
                confess "can't find $path: $!";
        }

}

sub add_css {
        my ($self,$css) = @_;
        my ( $package, $path, $line ) = caller;
        $self->add_head( qq|
        <style type="text/css">
        /* via $package at $path line $line */
        $css
        </style>
        | );
}

our $reload_counter = 0;


=head2 page

  $self->page(
        title => 'page title',
        head  => '<!-- optional head markup -->',
        body  => '<b>Page Body</b>',
  );

=cut

our @status;
sub status { @status };

our $icon_html;

sub page {
        my $self = shift;
        my $a = {@_};

        warn "## page ",dump($a);

        $reload_counter++;

        my $status_line = '';

        foreach my $part ( @status ) {
                foreach my $name ( keys %$part ) {
                        $status_line .= $self->popup( $name, $part->{$name} );
                }
        }

        my $url = $self->request_url;
        $url =~ s{\?reload=\d+}{};

        my $body = $a->{body};
        if ( ! $body ) {
                my $run = $a->{run} || 'as_markup';
                warn "# no body, invoke $self->$run on ", ref($self);
                $body = $self->$run;
        }
        if ( $self->content_type !~ m{html} ) {
                warn "# return only $self body ", $self->content_type;
                return $body
        } elsif ( ! defined $body ) {
                warn "# no body";
                $body = '<!-- no body -->';
        }

        $status_line .= $self->warnings_html;

        my      ($exit,$description) = ('exit','stop server');
                ($exit,$description) = ('restart','restart server')
                if $ENV{FREY_RESTART}; # tune labels on exit link

        my $right =
                qq|
                        <span class="right">
                        <a title="reload $url"  href="/reload$url">reload</a>
                        <a title="$description" href="/exit$url">$exit</a>
                        </span>
                |;

        my $svk = Frey::SVK->new;
        my $info = $svk->info;
        my $revision = $svk->info->{Revision} || '';
        $revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};

        $self->add_icon unless $icon_html;

        my $html = join("\n",
                qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
                $self->_head_html,
                '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
                '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
                ( $icon_html || '<!-- no icon -->' ),
                ( $a->{head} || '' ),
                qq|
                </head><body>
                $body
                <div class="frey-status-line">
                        <a href="/">Frey</a> $Frey::VERSION $revision
                        $status_line
                        $right
                </div>
            </body></html>
                |,
        );

        warn "## >>> page ",length($html), " bytes\n" if $self->debug;

        return $html;
}

=head2 editor

Create HTML editor link with optional line and title

  my $html = $self->editor( $class, $line, $title );

=cut

sub editor {
        my ( $self, $class, $line, $title ) = @_;
        confess "need class" unless $class;
        if ( ! defined $title ) {
                $title  = "edit $class";
                $title .= " line $line" if $line;
        }
        $line  ||= 1;
        qq|<a target="editor" href="/editor+$class+$line"| .
        ( $title ? qq| title="$title"| : '' ) .
        qq|>$class</a>|;
}

=head2 editor_links

Create HTML links to editor for perl error message

  my $html = $self->editor_links( $error )

=cut

sub editor_links {
        my ( $self, $error ) = @_;

#       $error =~ s[(bless\({\s+.+?\s+},\s+)("[^"]+")(\) at)][<span class="frey-dropdown">$1<code>$2</code>$3</span>]gs; # FIXME insert bless hiding back

        $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
                {at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;

        $error =~ s{(via (?:package) "?)([\w:]+)("?)}
                {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;

        return $error;
}

sub error {
        my $self = shift;
        my $error = join(" ", @_);

        my @backtrace = $self->backtrace;
        $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;

        warn "ERROR: $error\n";
        return
                qq|<pre class="frey-error">|
                . $self->editor_links( $error ) .
                qq|</pre>|
                ;
}

=head1 Status line

=head2 add_status

  $self->add_status( { name => { some => 'data' } } );

  $self->add_status( "append to last status popup" );

=cut

sub add_status {
        my ( $self, $data ) = @_;
        push @status, { 'X' => [ $self->backtrace ] };
        if ( ref($data) ) {
                push @status, $data;
        } else {
                if ( defined $status[ $#status ] ) {
                        $status[ $#status ]->{ '+' } = $data;
                } else {
                        push @status, { '+' => $data };
                }
        }
}

=head2 clean_status

Called at beginning of each request

  $self->clean_status;

=cut

sub clean_status {
        my ($self) = shift;
        @head = ( 'static/frey.css' );
        @status = (
                { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
                { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
                { 'INC' => Frey::INC->new->as_markup },
        );
        $icon_html = '';
}

=head2 status_parts

Dump all status line parts

  $self->status_parts

=cut

sub status_parts {
        warn "## status parts ", dump( map { keys %$_ } @status );
}

=for debug

sub DEMOLISH {
        my ( $self ) = @_;
        warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
}

=cut

=head2 add_icon

  Frey::Foo->add_icon;            # /static/icons/Frey/Foo.png
  Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png

=cut

sub icon_path {
        my ($self,$class,$variant) = @_;
        my $icon = $class;
        $icon =~ s{::}{/}g;
        $icon .= "/$variant" if $variant;
        my $path = 'static/icons/' . $icon . '.png';
        if ( -e $path ) {
                warn "# $class from $self icon_path $path" if $self->debug;
                return $path;
        } else {
                $self->TODO( "add $path icon for $class" );
                return undef;
        }
}

sub add_icon {
        my ($self,$variant) = @_;

        my $class = ref($self);
        $class = $self->class if $self->can('class');
        my $icon_path = $self->icon_path( $class, $variant ) || return;

        $icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|;
        warn "# using icon $icon_path";

=for later

        # FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work!
        my $ico_path = $icon_path;
        $ico_path =~ s{png$}{ico};
        if ( ! -e $ico_path ) {
                system "convert $icon_path $ico_path";
                warn "# convert $icon_path $ico_path : $@";
        }
        $icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path;

=cut

}

my $warn_colors = {
        '#'  => '#444',
        '##' => '#888',
};

my $multiline_markers = {
        '(' => ')',
        '{' => '}',
        '[' => ']',
        '"' => '"',
};

my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']';
warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re";

sub log_path {
        $Frey::Bootstrap::log_path || warn "no log_path?";
}

sub warnings_html {
        my ($self,$level) = shift;
        $level ||= $self->debug,
        my $path = $self->log_path;

        my $max = 30;
        my $pos = 0;
        my @warnings = ( '' x $max ); # XXX circualar buffer for 50 lines
        my $line = 0;
        my $multiline_end;

        # XXX do we really want to do this every time?
        my $css = qq|/* short css classes for levels */\n|;
        my $level_to_class;
        foreach ( keys %$warn_colors ) {
                my $l = length($_);
                my $class = 'l' . $l;
                $css .= qq|.$class { color: $warn_colors->{$_} }\n|;
                $level_to_class->{ $_ } = $class;
        }
        $self->add_css( $css );

        open(my $log, '<', $path) || die "can't open $path: $!";
        while(<$log>) {
                chomp;
                $line++;

                my $style = '';

=for filter

                if ( $multiline_end ) {
                        if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) {
#                               warn "## $line end of $multiline_end in '$_'\n";
                                undef $multiline_end;
                        } else {
#                               warn "## $line skipped\n";
                        }
                } elsif ( m{^(#*)\s+} ) {
                        my $l = $1 ? length($1) : 0;
                        if ( $l > $level ) {
                                undef $multiline_end;
                                $multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
#                               warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
                                next;
                        }

=cut
                if ( m{^(#*)} ) {

                        my $level = $1;
                        my $msg = $_;

                        my $spacer = ' ';
                        my $real_msg = expand( $msg );
                        if ( length($real_msg) > $self->html_dump_width ) {
                                
                                $real_msg = substr( $msg, 0, $self->html_dump_width );
                                $msg = unexpand( $real_msg );
                                $spacer = '&hellip;'
                        }

                        $msg = $self->html_escape( $msg );

                        if ( my $class = $level_to_class->{ $level } ) {
                                $msg = qq|<span class="$class">$msg</span>|;
                        }

                        $msg .= $spacer .
                                qq|<a target="editor" href="/editor+$path+$line" style="float: right;">+$line</a>\n|;

                        $warnings[ $pos++ % $max ] = $msg;
                }
        }
        warn "log has $line lines tell position ",tell($log);
        close($log) || die "can't close $path: $!";

        my $size = -s $path;

        my $warnings = join("",
                map { $warnings[ ( $pos + $_ ) % $max ] || '' } 1 .. $max 
        );

        my $s = length($warnings);

        return
                # need to wrap editor link into span so we can have links in warnings
                  qq|<span class="frey-popup"><a target="editor" href="/editor+$path+$line" title="$path \| $size -> $s bytes \| $line -> $pos lines \| level $level">warn</a><code>|
                . $self->editor_links( $warnings )
                . qq|</code></span></a>|
                ;
}


=head2 backtrace

Show backtrace with links to editor

  my @backtrace = $self->backtrace;

=cut

sub backtrace {
        my ($self) = @_;

        my @backtrace;
        foreach ( 0 .. 5 ) {
                my (
                        $package,$path,$line
                        # subroutine hasargs
                        # wantarray evaltext is_require
                        # hints bitmask hinthash
                ) = caller($_) or last;

                push @backtrace,
                        qq|via $package at $path line $line|;
        }
        #warn "# backtrace: ", dump( @backtrace ) if @backtrace;
        return @backtrace;
}

1;
1	dpavlin	100	package Frey::Web;
2			use Moose::Role;
3
4	dpavlin	564	with 'Frey::Session';
5
6	dpavlin	388	use Frey::Types;
7
8	dpavlin	564	#use Continuity::Widget::DomNode;
9	dpavlin	100	use Data::Dump qw/dump/;
10	dpavlin	518	use Carp qw/confess cluck/;
11	dpavlin	161	use File::Slurp;
12	dpavlin	100
13	dpavlin	410	use Frey::Bookmarklet;
14			use Frey::ClassBrowser;
15	dpavlin	540	use Frey::INC;
16
17	dpavlin	505	use Frey::SVK;
18	dpavlin	410
19	dpavlin	611	use Text::Tabs; # expand, unexpand
20
21	dpavlin	578	our @head;
22	dpavlin	584	sub head { @head }
23	dpavlin	121
24	dpavlin	392	has 'request_url' => (
25	dpavlin	388	is => 'rw',
26			isa => 'Uri', coerce => 1,
27			default => '/',
28			);
29
30	dpavlin	418	has 'title' => (
31			is => 'rw',
32			isa => 'Str',
33			lazy => 1,
34			default => sub {
35			my ($self) = @_;
36			ref($self);
37			},
38			);
39
40	dpavlin	448	has 'content_type' => (
41			is => 'rw',
42			isa => 'Str',
43			default => 'text/html',
44	dpavlin	476	documentation => 'Content-type header',
45	dpavlin	448	);
46
47	dpavlin	476	has 'dump_max_bytes' => (
48			is => 'rw',
49			isa => 'Int',
50			default => 4096,
51	dpavlin	543	documentation => 'maximum dump size sent to browser before truncation',
52	dpavlin	476	);
53
54	dpavlin	161	has 'inline_smaller_than' => (
55			is => 'rw',
56			isa => 'Int',
57			default => 10240,
58	dpavlin	543	documentation => 'inline JavaScript and CSS to reduce round-trips',
59	dpavlin	161	);
60
61	dpavlin	543	has 'html_dump_width' => (
62			documentation => 'crop longer lines in dumps',
63	dpavlin	535	is => 'rw',
64			isa => 'Int',
65	dpavlin	543	# required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them
66	dpavlin	611	default => 120,
67	dpavlin	535	);
68
69			my %escape = ('<'=>'<', '>'=>'>', '&'=>'&', '"'=>'"');
70			my $escape_re = join '\|' => keys %escape;
71
72			sub html_escape {
73			my ( $self, $html ) = @_;
74			$html =~ s/($escape_re)/$escape{$1}/g;
75			return $html;
76			}
77
78			sub html_dump {
79	dpavlin	543	my ( $self, $dump ) = @_;
80			$dump = dump( $dump ) if ref($dump);
81			my $width = $self->html_dump_width;
82			$dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs;
83			$dump = $self->html_escape( $dump );
84			$dump =~ s{\Q...\E}{…}gs;
85	dpavlin	581	# $dump =~ $self->editor_links( $dump ); # FIXME include this
86	dpavlin	543	return "<code>$dump</code>";
87	dpavlin	535	}
88
89	dpavlin	546	sub popup { my $self = shift; $self->popup_dropdown('popup', @_); }
90			sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); }
91
92	dpavlin	596	our $re_html = qr{<(?:!--.+?--\|(\w+).+?/\1\|[^>]+/)>}s; # relaxed html check for one semi-valid tag
93	dpavlin	546
94			sub popup_dropdown {
95			my ( $self, $type, $name, $content, $full ) = @_;
96
97			$content = $self->html_dump($content) if ref $content;
98
99			$content = qq\|<span>$content</span>\| unless $content =~ m{^\s<(span\|a\|code).+?/\1>\s};
100
101	dpavlin	581	$content =~ s{<span>(<code>[^<]+</code>)</span>}{$1} && $self->TODO("code wrapped in span");
102
103	dpavlin	591	warn "## $type [$name] = ", length( $content ), " bytes"; # if $self->debug; # FIXME
104	dpavlin	546
105			if ( $name =~ m{::} && $name !~ $re_html ) {
106			return qq\|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n\|;
107	dpavlin	588	} elsif ( $name =~ s{^\s*(<a)\s+}{$1 class="frey-$type"} ) {
108			return qq\|$name $content\n\|;
109	dpavlin	546	} else {
110			return qq\|<span class="frey-$type">$name $content</span>\n\|;
111			}
112			}
113
114	dpavlin	161	sub _inline_path {
115			my ( $self, $path ) = @_;
116			-s $path < $self->inline_smaller_than;
117			}
118
119	dpavlin	156	sub _head_html {
120			my $self = shift;
121	dpavlin	121	my $out = '';
122	dpavlin	577	foreach my $path ( @head ) {
123	dpavlin	121	$path =~ s!^/!!;
124	dpavlin	156	if ( $path =~ m/\.js$/ ) {
125	dpavlin	161	$out .= $self->_inline_path( $path ) ?
126	dpavlin	600	qq\|<script type="text/javascript">\n/* inline $path */\n\n\| . read_file($path) . qq\|\n</script>\| :
127	dpavlin	161	qq\|<script type="text/javascript" src="/$path"></script>\|;
128	dpavlin	156	} elsif ( $path =~ m/\.css$/ ) {
129	dpavlin	161	$out .= $self->_inline_path( $path ) ?
130	dpavlin	600	qq\|<style type="text/css">\n/* inline $path */\n\n\| . read_file( $path ) . qq\|\n</style>\| :
131	dpavlin	161	qq\|<link type="text/css" rel="stylesheet" href="/$path" media="screen">\|;
132	dpavlin	446	} elsif ( $path =~ m{<.+>}s ) {
133	dpavlin	444	$out .= $path;
134	dpavlin	156	} else {
135			confess "don't know how to render $path";
136			}
137	dpavlin	163	$out .= "\n";
138	dpavlin	121	}
139			return $out;
140			}
141	dpavlin	100
142	dpavlin	154	=head2 add_head
143
144			$o->add_head( 'path/to/external.js' );
145
146			my $size = $o->add_head( 'path/to/external.css' );
147
148	dpavlin	445	$o->add_head( '<!-- html content -->' );
149
150	dpavlin	154	=cut
151
152			sub add_head {
153			my ( $self, $path ) = @_;
154			return if ! defined $path \|\| $path eq '';
155			$path =~ s!^/!!;
156
157	dpavlin	546	if ( $path =~ $re_html ) {
158	dpavlin	577	push @head, $path;
159	dpavlin	444	} elsif ( -e $path ) {
160	dpavlin	156	if ( $path =~ m/\.(?:js\|css)$/ ) {
161	dpavlin	577	push @head, $path;
162	dpavlin	154	} else {
163			confess "can't add_head( $path ) it's not js or css";
164			}
165	dpavlin	444	return -s $path;
166	dpavlin	154	} else {
167			confess "can't find $path: $!";
168			}
169
170			}
171
172	dpavlin	577	sub add_css {
173			my ($self,$css) = @_;
174			my ( $package, $path, $line ) = caller;
175			$self->add_head( qq\|
176			<style type="text/css">
177	dpavlin	581	/* via $package at $path line $line */
178	dpavlin	577	$css
179			</style>
180			\| );
181			}
182
183	dpavlin	142	our $reload_counter = 0;
184
185	dpavlin	183
186			=head2 page
187
188			$self->page(
189			title => 'page title',
190			head => '<!-- optional head markup -->',
191			body => '<b>Page Body</b>',
192			);
193
194			=cut
195
196	dpavlin	519	our @status;
197			sub status { @status };
198
199	dpavlin	527	our $icon_html;
200
201	dpavlin	121	sub page {
202	dpavlin	100	my $self = shift;
203	dpavlin	121	my $a = {@_};
204	dpavlin	100
205	dpavlin	519	warn "## page ",dump($a);
206
207	dpavlin	142	$reload_counter++;
208
209	dpavlin	388	my $status_line = '';
210	dpavlin	519
211			foreach my $part ( @status ) {
212	dpavlin	388	foreach my $name ( keys %$part ) {
213	dpavlin	537	$status_line .= $self->popup( $name, $part->{$name} );
214	dpavlin	388	}
215			}
216
217	dpavlin	439	my $url = $self->request_url;
218			$url =~ s{\?reload=\d+}{};
219
220	dpavlin	460	my $body = $a->{body};
221	dpavlin	591	if ( ! $body ) {
222			my $run = $a->{run} \|\| 'as_markup';
223	dpavlin	611	warn "# no body, invoke $self->$run on ", ref($self);
224	dpavlin	591	$body = $self->$run;
225			}
226	dpavlin	460	if ( $self->content_type !~ m{html} ) {
227			warn "# return only $self body ", $self->content_type;
228			return $body
229			} elsif ( ! defined $body ) {
230			warn "# no body";
231			$body = '<!-- no body -->';
232			}
233	dpavlin	448
234	dpavlin	532	$status_line .= $self->warnings_html;
235	dpavlin	482
236	dpavlin	477	my ($exit,$description) = ('exit','stop server');
237			($exit,$description) = ('restart','restart server')
238			if $ENV{FREY_RESTART}; # tune labels on exit link
239
240	dpavlin	473	my $right =
241			qq\|
242			<span class="right">
243	dpavlin	519	<a title="reload $url" href="/reload$url">reload</a>
244	dpavlin	477	<a title="$description" href="/exit$url">$exit</a>
245	dpavlin	473	</span>
246			\|;
247
248	dpavlin	577	my $svk = Frey::SVK->new;
249			my $info = $svk->info;
250			my $revision = $svk->info->{Revision} \|\| '';
251	dpavlin	516	$revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};
252	dpavlin	505
253	dpavlin	527	$self->add_icon unless $icon_html;
254	dpavlin	524
255	dpavlin	388	my $html = join("\n",
256			qq\|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>\|,
257			$self->_head_html,
258	dpavlin	418	'<title>' . ( $self->title \|\| $a->{title} \|\| ref($self) ) . '</title>',
259	dpavlin	388	'<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
260	dpavlin	527	( $icon_html \|\| '<!-- no icon -->' ),
261	dpavlin	388	( $a->{head} \|\| '' ),
262			qq\|
263	dpavlin	448	</head><body>
264			$body
265	dpavlin	388	<div class="frey-status-line">
266	dpavlin	505	<a href="/">Frey</a> $Frey::VERSION $revision
267	dpavlin	388	$status_line
268	dpavlin	473	$right
269	dpavlin	210	</div>
270			</body></html>
271	dpavlin	388	\|,
272			);
273	dpavlin	100
274	dpavlin	121	warn "## >>> page ",length($html), " bytes\n" if $self->debug;
275	dpavlin	100
276	dpavlin	121	return $html;
277	dpavlin	100	}
278
279	dpavlin	480	=head2 editor
280
281			Create HTML editor link with optional line and title
282
283			my $html = $self->editor( $class, $line, $title );
284
285			=cut
286
287			sub editor {
288			my ( $self, $class, $line, $title ) = @_;
289			confess "need class" unless $class;
290	dpavlin	519	if ( ! defined $title ) {
291			$title = "edit $class";
292			$title .= " line $line" if $line;
293			}
294			$line \|\|= 1;
295	dpavlin	480	qq\|<a target="editor" href="/editor+$class+$line"\| .
296			( $title ? qq\| title="$title"\| : '' ) .
297			qq\|>$class</a>\|;
298			}
299
300			=head2 editor_links
301
302			Create HTML links to editor for perl error message
303
304			my $html = $self->editor_links( $error )
305
306			=cut
307
308	dpavlin	468	sub editor_links {
309			my ( $self, $error ) = @_;
310
311	dpavlin	591	# $error =~ s[(bless\({\s+.+?\s+},\s+)("[^"]+")(\) at)][<span class="frey-dropdown">$1<code>$2</code>$3</span>]gs; # FIXME insert bless hiding back
312
313	dpavlin	468	$error =~ s{at\s+(\S+)\s+line\s+(\d+)}
314			{at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
315
316	dpavlin	581	$error =~ s{(via (?:package) "?)([\w:]+)("?)}
317	dpavlin	468	{$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
318
319			return $error;
320			}
321
322	dpavlin	350	sub error {
323	dpavlin	397	my $self = shift;
324			my $error = join(" ", @_);
325	dpavlin	460
326	dpavlin	465	my @backtrace = $self->backtrace;
327			$error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
328	dpavlin	460
329			warn "ERROR: $error\n";
330	dpavlin	468	return
331			qq\|<pre class="frey-error">\|
332			. $self->editor_links( $error ) .
333			qq\|</pre>\|
334			;
335	dpavlin	350	}
336
337	dpavlin	577	=head1 Status line
338
339			=head2 add_status
340
341	dpavlin	581	$self->add_status( { name => { some => 'data' } } );
342	dpavlin	577
343			$self->add_status( "append to last status popup" );
344
345			=cut
346
347	dpavlin	507	sub add_status {
348			my ( $self, $data ) = @_;
349	dpavlin	581	push @status, { 'X' => [ $self->backtrace ] };
350	dpavlin	577	if ( ref($data) ) {
351			push @status, $data;
352			} else {
353	dpavlin	581	if ( defined $status[ $#status ] ) {
354			$status[ $#status ]->{ '+' } = $data;
355			} else {
356			push @status, { '+' => $data };
357			}
358	dpavlin	577	}
359	dpavlin	507	}
360
361	dpavlin	577	=head2 clean_status
362
363			Called at beginning of each request
364
365			$self->clean_status;
366
367			=cut
368
369	dpavlin	519	sub clean_status {
370	dpavlin	577	my ($self) = shift;
371	dpavlin	578	@head = ( 'static/frey.css' );
372	dpavlin	581	@status = (
373			{ 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
374			{ 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
375			{ 'INC' => Frey::INC->new->as_markup },
376			);
377	dpavlin	527	$icon_html = '';
378	dpavlin	519	}
379
380	dpavlin	577	=head2 status_parts
381
382			Dump all status line parts
383
384			$self->status_parts
385
386			=cut
387
388	dpavlin	519	sub status_parts {
389			warn "## status parts ", dump( map { keys %$_ } @status );
390			}
391
392	dpavlin	568	=for debug
393
394	dpavlin	518	sub DEMOLISH {
395			my ( $self ) = @_;
396	dpavlin	529	warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
397	dpavlin	518	}
398
399	dpavlin	568	=cut
400
401	dpavlin	527	=head2 add_icon
402
403			Frey::Foo->add_icon; # /static/icons/Frey/Foo.png
404			Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png
405
406			=cut
407
408	dpavlin	529	sub icon_path {
409			my ($self,$class,$variant) = @_;
410			my $icon = $class;
411	dpavlin	524	$icon =~ s{::}{/}g;
412	dpavlin	529	$icon .= "/$variant" if $variant;
413			my $path = 'static/icons/' . $icon . '.png';
414			if ( -e $path ) {
415	dpavlin	577	warn "# $class from $self icon_path $path" if $self->debug;
416	dpavlin	529	return $path;
417			} else {
418	dpavlin	564	$self->TODO( "add $path icon for $class" );
419	dpavlin	529	return undef;
420			}
421			}
422	dpavlin	524
423	dpavlin	529	sub add_icon {
424			my ($self,$variant) = @_;
425	dpavlin	524
426	dpavlin	529	my $class = ref($self);
427			$class = $self->class if $self->can('class');
428			my $icon_path = $self->icon_path( $class, $variant ) \|\| return;
429	dpavlin	524
430	dpavlin	529	$icon_html .= qq\|<link rel="icon" type="image/png" href="/$icon_path">\|;
431			warn "# using icon $icon_path";
432
433	dpavlin	527	=for later
434
435	dpavlin	529	# FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work!
436			my $ico_path = $icon_path;
437			$ico_path =~ s{png$}{ico};
438			if ( ! -e $ico_path ) {
439			system "convert $icon_path $ico_path";
440			warn "# convert $icon_path $ico_path : $@";
441			}
442			$icon_html .= qq\|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">\| if -e $ico_path;
443	dpavlin	524
444	dpavlin	527	=cut
445
446	dpavlin	524	}
447
448	dpavlin	532	my $warn_colors = {
449			'#' => '#444',
450			'##' => '#888',
451			};
452
453			my $multiline_markers = {
454	dpavlin	535	'(' => ')',
455	dpavlin	532	'{' => '}',
456	dpavlin	535	'[' => ']',
457	dpavlin	532	'"' => '"',
458			};
459
460			my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']';
461			warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re";
462
463			sub log_path {
464			$Frey::Bootstrap::log_path \|\| warn "no log_path?";
465			}
466
467			sub warnings_html {
468			my ($self,$level) = shift;
469	dpavlin	535	$level \|\|= $self->debug,
470	dpavlin	532	my $path = $self->log_path;
471
472	dpavlin	611	my $max = 30;
473	dpavlin	588	my $pos = 0;
474			my @warnings = ( '' x $max ); # XXX circualar buffer for 50 lines
475	dpavlin	532	my $line = 0;
476			my $multiline_end;
477
478	dpavlin	611	# XXX do we really want to do this every time?
479			my $css = qq\|/* short css classes for levels */\n\|;
480			my $level_to_class;
481			foreach ( keys %$warn_colors ) {
482			my $l = length($_);
483			my $class = 'l' . $l;
484			$css .= qq\|.$class { color: $warn_colors->{$_} }\n\|;
485			$level_to_class->{ $_ } = $class;
486			}
487			$self->add_css( $css );
488
489	dpavlin	532	open(my $log, '<', $path) \|\| die "can't open $path: $!";
490			while(<$log>) {
491			chomp;
492			$line++;
493
494			my $style = '';
495
496	dpavlin	588	=for filter
497
498	dpavlin	535	if ( $multiline_end ) {
499			if ( m{^\Q$multiline_end\E} \|\| m{^\s.+\Q$multiline_end\E;$} ) {
500	dpavlin	537	# warn "## $line end of $multiline_end in '$_'\n";
501	dpavlin	535	undef $multiline_end;
502			} else {
503	dpavlin	537	# warn "## $line skipped\n";
504	dpavlin	535	}
505			} elsif ( m{^(#*)\s+} ) {
506	dpavlin	532	my $l = $1 ? length($1) : 0;
507	dpavlin	535	if ( $l > $level ) {
508			undef $multiline_end;
509			$multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
510	dpavlin	537	# warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
511	dpavlin	535	next;
512			}
513	dpavlin	532
514	dpavlin	588	=cut
515	dpavlin	611	if ( m{^(#*)} ) {
516	dpavlin	588
517	dpavlin	611	my $level = $1;
518			my $msg = $_;
519	dpavlin	532
520	dpavlin	535	my $spacer = ' ';
521	dpavlin	611	my $real_msg = expand( $msg );
522			if ( length($real_msg) > $self->html_dump_width ) {
523
524			$real_msg = substr( $msg, 0, $self->html_dump_width );
525			$msg = unexpand( $real_msg );
526	dpavlin	535	$spacer = '…'
527			}
528	dpavlin	611
529			$msg = $self->html_escape( $msg );
530
531			if ( my $class = $level_to_class->{ $level } ) {
532			$msg = qq\|<span class="$class">$msg</span>\|;
533			}
534
535			$msg .= $spacer .
536			qq\|<a target="editor" href="/editor+$path+$line" style="float: right;">+$line</a>\n\|;
537
538			$warnings[ $pos++ % $max ] = $msg;
539	dpavlin	532	}
540			}
541	dpavlin	611	warn "log has $line lines tell position ",tell($log);
542	dpavlin	532	close($log) \|\| die "can't close $path: $!";
543
544	dpavlin	588	my $size = -s $path;
545
546	dpavlin	611	my $warnings = join("",
547			map { $warnings[ ( $pos + $_ ) % $max ] \|\| '' } 1 .. $max
548	dpavlin	588	);
549
550			my $s = length($warnings);
551
552	dpavlin	532	return
553	dpavlin	611	# need to wrap editor link into span so we can have links in warnings
554	dpavlin	588	qq\|<span class="frey-popup"><a target="editor" href="/editor+$path+$line" title="$path \\| $size -> $s bytes \\| $line -> $pos lines \\| level $level">warn</a><code>\|
555	dpavlin	611	. $self->editor_links( $warnings )
556	dpavlin	588	. qq\|</code></span></a>\|
557	dpavlin	532	;
558			}
559
560	dpavlin	543
561			=head2 backtrace
562
563			Show backtrace with links to editor
564
565			my @backtrace = $self->backtrace;
566
567			=cut
568
569			sub backtrace {
570			my ($self) = @_;
571
572			my @backtrace;
573			foreach ( 0 .. 5 ) {
574			my (
575			$package,$path,$line
576			# subroutine hasargs
577			# wantarray evaltext is_require
578			# hints bitmask hinthash
579			) = caller($_) or last;
580
581			push @backtrace,
582	dpavlin	581	qq\|via $package at $path line $line\|;
583	dpavlin	543	}
584	dpavlin	591	#warn "# backtrace: ", dump( @backtrace ) if @backtrace;
585	dpavlin	543	return @backtrace;
586			}
587
588	dpavlin	100	1;