/[Frey]/branches/zimbardo/lib/Frey/Web.pm
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Revision 596 - (hide annotations)
Fri Nov 28 17:20:05 2008 UTC (15 years, 4 months ago) by dpavlin
Original Path: trunk/lib/Frey/Web.pm
File size: 12668 byte(s)
support single tags like <tag/>
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 578 our @head;
20 dpavlin 584 sub head { @head }
21 dpavlin 121
22 dpavlin 392 has 'request_url' => (
23 dpavlin 388 is => 'rw',
24     isa => 'Uri', coerce => 1,
25     default => '/',
26     );
27    
28 dpavlin 418 has 'title' => (
29     is => 'rw',
30     isa => 'Str',
31     lazy => 1,
32     default => sub {
33     my ($self) = @_;
34     ref($self);
35     },
36     );
37    
38 dpavlin 448 has 'content_type' => (
39     is => 'rw',
40     isa => 'Str',
41     default => 'text/html',
42 dpavlin 476 documentation => 'Content-type header',
43 dpavlin 448 );
44    
45 dpavlin 476 has 'dump_max_bytes' => (
46     is => 'rw',
47     isa => 'Int',
48     default => 4096,
49 dpavlin 543 documentation => 'maximum dump size sent to browser before truncation',
50 dpavlin 476 );
51    
52 dpavlin 161 has 'inline_smaller_than' => (
53     is => 'rw',
54     isa => 'Int',
55     default => 10240,
56 dpavlin 543 documentation => 'inline JavaScript and CSS to reduce round-trips',
57 dpavlin 161 );
58    
59 dpavlin 543 has 'html_dump_width' => (
60     documentation => 'crop longer lines in dumps',
61 dpavlin 535 is => 'rw',
62     isa => 'Int',
63 dpavlin 543 # required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them
64     default => 128,
65 dpavlin 535 );
66    
67     my %escape = ('<'=>'&lt;', '>'=>'&gt;', '&'=>'&amp;', '"'=>'&quot;');
68     my $escape_re = join '|' => keys %escape;
69    
70     sub html_escape {
71     my ( $self, $html ) = @_;
72     $html =~ s/($escape_re)/$escape{$1}/g;
73     return $html;
74     }
75    
76     sub html_dump {
77 dpavlin 543 my ( $self, $dump ) = @_;
78     $dump = dump( $dump ) if ref($dump);
79     my $width = $self->html_dump_width;
80     $dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs;
81     $dump = $self->html_escape( $dump );
82     $dump =~ s{\Q...\E}{&hellip;}gs;
83 dpavlin 581 # $dump =~ $self->editor_links( $dump ); # FIXME include this
84 dpavlin 543 return "<code>$dump</code>";
85 dpavlin 535 }
86    
87 dpavlin 546 sub popup { my $self = shift; $self->popup_dropdown('popup', @_); }
88     sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); }
89    
90 dpavlin 596 our $re_html = qr{<(?:!--.+?--|(\w+).+?/\1|[^>]+/)>}s; # relaxed html check for one semi-valid tag
91 dpavlin 546
92     sub popup_dropdown {
93     my ( $self, $type, $name, $content, $full ) = @_;
94    
95     $content = $self->html_dump($content) if ref $content;
96    
97     $content = qq|<span>$content</span>| unless $content =~ m{^\s*<(span|a|code).+?/\1>\s*};
98    
99 dpavlin 581 $content =~ s{<span>(<code>[^<]+</code>)</span>}{$1} && $self->TODO("code wrapped in span");
100    
101 dpavlin 591 warn "## $type [$name] = ", length( $content ), " bytes"; # if $self->debug; # FIXME
102 dpavlin 546
103     if ( $name =~ m{::} && $name !~ $re_html ) {
104     return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|;
105 dpavlin 588 } elsif ( $name =~ s{^\s*(<a)\s+}{$1 class="frey-$type"} ) {
106     return qq|$name $content\n|;
107 dpavlin 546 } else {
108     return qq|<span class="frey-$type">$name $content</span>\n|;
109     }
110     }
111    
112 dpavlin 161 sub _inline_path {
113     my ( $self, $path ) = @_;
114     -s $path < $self->inline_smaller_than;
115     }
116    
117 dpavlin 156 sub _head_html {
118     my $self = shift;
119 dpavlin 121 my $out = '';
120 dpavlin 577 foreach my $path ( @head ) {
121 dpavlin 121 $path =~ s!^/!!;
122 dpavlin 156 if ( $path =~ m/\.js$/ ) {
123 dpavlin 161 $out .= $self->_inline_path( $path ) ?
124 dpavlin 163 qq|<!-- $path --><script type="text/javascript">\n| . read_file($path) . qq|\n</script>| :
125 dpavlin 161 qq|<script type="text/javascript" src="/$path"></script>|;
126 dpavlin 156 } elsif ( $path =~ m/\.css$/ ) {
127 dpavlin 161 $out .= $self->_inline_path( $path ) ?
128 dpavlin 163 qq|<!-- $path --><style type="text/css">\n| . read_file( $path ) . qq|\n</style>| :
129 dpavlin 161 qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
130 dpavlin 446 } elsif ( $path =~ m{<.+>}s ) {
131 dpavlin 444 $out .= $path;
132 dpavlin 156 } else {
133     confess "don't know how to render $path";
134     }
135 dpavlin 163 $out .= "\n";
136 dpavlin 121 }
137     return $out;
138     }
139 dpavlin 100
140 dpavlin 154 =head2 add_head
141    
142     $o->add_head( 'path/to/external.js' );
143    
144     my $size = $o->add_head( 'path/to/external.css' );
145    
146 dpavlin 445 $o->add_head( '<!-- html content -->' );
147    
148 dpavlin 154 =cut
149    
150     sub add_head {
151     my ( $self, $path ) = @_;
152     return if ! defined $path || $path eq '';
153     $path =~ s!^/!!;
154    
155 dpavlin 546 if ( $path =~ $re_html ) {
156 dpavlin 577 push @head, $path;
157 dpavlin 444 } elsif ( -e $path ) {
158 dpavlin 156 if ( $path =~ m/\.(?:js|css)$/ ) {
159 dpavlin 577 push @head, $path;
160 dpavlin 154 } else {
161     confess "can't add_head( $path ) it's not js or css";
162     }
163 dpavlin 444 return -s $path;
164 dpavlin 154 } else {
165     confess "can't find $path: $!";
166     }
167    
168     }
169    
170 dpavlin 577 sub add_css {
171     my ($self,$css) = @_;
172     my ( $package, $path, $line ) = caller;
173     $self->add_head( qq|
174     <style type="text/css">
175 dpavlin 581 /* via $package at $path line $line */
176 dpavlin 577 $css
177     </style>
178     | );
179     }
180    
181 dpavlin 142 our $reload_counter = 0;
182    
183 dpavlin 183
184     =head2 page
185    
186     $self->page(
187     title => 'page title',
188     head => '<!-- optional head markup -->',
189     body => '<b>Page Body</b>',
190     );
191    
192     =cut
193    
194 dpavlin 519 our @status;
195     sub status { @status };
196    
197 dpavlin 527 our $icon_html;
198    
199 dpavlin 121 sub page {
200 dpavlin 100 my $self = shift;
201 dpavlin 121 my $a = {@_};
202 dpavlin 100
203 dpavlin 519 warn "## page ",dump($a);
204    
205 dpavlin 142 $reload_counter++;
206    
207 dpavlin 388 my $status_line = '';
208 dpavlin 519
209     foreach my $part ( @status ) {
210 dpavlin 388 foreach my $name ( keys %$part ) {
211 dpavlin 537 $status_line .= $self->popup( $name, $part->{$name} );
212 dpavlin 388 }
213     }
214    
215 dpavlin 439 my $url = $self->request_url;
216     $url =~ s{\?reload=\d+}{};
217    
218 dpavlin 460 my $body = $a->{body};
219 dpavlin 591 if ( ! $body ) {
220     my $run = $a->{run} || 'as_markup';
221     warn "# no body, invoke $self->$run";
222     $body = $self->$run;
223     }
224 dpavlin 460 if ( $self->content_type !~ m{html} ) {
225     warn "# return only $self body ", $self->content_type;
226     return $body
227     } elsif ( ! defined $body ) {
228     warn "# no body";
229     $body = '<!-- no body -->';
230     }
231 dpavlin 448
232 dpavlin 532 $status_line .= $self->warnings_html;
233 dpavlin 482
234 dpavlin 477 my ($exit,$description) = ('exit','stop server');
235     ($exit,$description) = ('restart','restart server')
236     if $ENV{FREY_RESTART}; # tune labels on exit link
237    
238 dpavlin 473 my $right =
239     qq|
240     <span class="right">
241 dpavlin 519 <a title="reload $url" href="/reload$url">reload</a>
242 dpavlin 477 <a title="$description" href="/exit$url">$exit</a>
243 dpavlin 473 </span>
244     |;
245    
246 dpavlin 577 my $svk = Frey::SVK->new;
247     my $info = $svk->info;
248     my $revision = $svk->info->{Revision} || '';
249 dpavlin 516 $revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};
250 dpavlin 505
251 dpavlin 527 $self->add_icon unless $icon_html;
252 dpavlin 524
253 dpavlin 388 my $html = join("\n",
254     qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
255     $self->_head_html,
256 dpavlin 418 '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
257 dpavlin 388 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
258 dpavlin 527 ( $icon_html || '<!-- no icon -->' ),
259 dpavlin 388 ( $a->{head} || '' ),
260     qq|
261 dpavlin 448 </head><body>
262     $body
263 dpavlin 388 <div class="frey-status-line">
264 dpavlin 505 <a href="/">Frey</a> $Frey::VERSION $revision
265 dpavlin 388 $status_line
266 dpavlin 473 $right
267 dpavlin 210 </div>
268     </body></html>
269 dpavlin 388 |,
270     );
271 dpavlin 100
272 dpavlin 121 warn "## >>> page ",length($html), " bytes\n" if $self->debug;
273 dpavlin 100
274 dpavlin 121 return $html;
275 dpavlin 100 }
276    
277 dpavlin 480 =head2 editor
278    
279     Create HTML editor link with optional line and title
280    
281     my $html = $self->editor( $class, $line, $title );
282    
283     =cut
284    
285     sub editor {
286     my ( $self, $class, $line, $title ) = @_;
287     confess "need class" unless $class;
288 dpavlin 519 if ( ! defined $title ) {
289     $title = "edit $class";
290     $title .= " line $line" if $line;
291     }
292     $line ||= 1;
293 dpavlin 480 qq|<a target="editor" href="/editor+$class+$line"| .
294     ( $title ? qq| title="$title"| : '' ) .
295     qq|>$class</a>|;
296     }
297    
298     =head2 editor_links
299    
300     Create HTML links to editor for perl error message
301    
302     my $html = $self->editor_links( $error )
303    
304     =cut
305    
306 dpavlin 468 sub editor_links {
307     my ( $self, $error ) = @_;
308    
309 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
310    
311 dpavlin 468 $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
312     {at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
313    
314 dpavlin 581 $error =~ s{(via (?:package) "?)([\w:]+)("?)}
315 dpavlin 468 {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
316    
317     return $error;
318     }
319    
320 dpavlin 350 sub error {
321 dpavlin 397 my $self = shift;
322     my $error = join(" ", @_);
323 dpavlin 460
324 dpavlin 465 my @backtrace = $self->backtrace;
325     $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
326 dpavlin 460
327     warn "ERROR: $error\n";
328 dpavlin 468 return
329     qq|<pre class="frey-error">|
330     . $self->editor_links( $error ) .
331     qq|</pre>|
332     ;
333 dpavlin 350 }
334    
335 dpavlin 577 =head1 Status line
336    
337     =head2 add_status
338    
339 dpavlin 581 $self->add_status( { name => { some => 'data' } } );
340 dpavlin 577
341     $self->add_status( "append to last status popup" );
342    
343     =cut
344    
345 dpavlin 507 sub add_status {
346     my ( $self, $data ) = @_;
347 dpavlin 581 push @status, { 'X' => [ $self->backtrace ] };
348 dpavlin 577 if ( ref($data) ) {
349     push @status, $data;
350     } else {
351 dpavlin 581 if ( defined $status[ $#status ] ) {
352     $status[ $#status ]->{ '+' } = $data;
353     } else {
354     push @status, { '+' => $data };
355     }
356 dpavlin 577 }
357 dpavlin 507 }
358    
359 dpavlin 577 =head2 clean_status
360    
361     Called at beginning of each request
362    
363     $self->clean_status;
364    
365     =cut
366    
367 dpavlin 519 sub clean_status {
368 dpavlin 577 my ($self) = shift;
369 dpavlin 578 @head = ( 'static/frey.css' );
370 dpavlin 581 @status = (
371     { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
372     { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
373     { 'INC' => Frey::INC->new->as_markup },
374     );
375 dpavlin 527 $icon_html = '';
376 dpavlin 519 }
377    
378 dpavlin 577 =head2 status_parts
379    
380     Dump all status line parts
381    
382     $self->status_parts
383    
384     =cut
385    
386 dpavlin 519 sub status_parts {
387     warn "## status parts ", dump( map { keys %$_ } @status );
388     }
389    
390 dpavlin 568 =for debug
391    
392 dpavlin 518 sub DEMOLISH {
393     my ( $self ) = @_;
394 dpavlin 529 warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
395 dpavlin 518 }
396    
397 dpavlin 568 =cut
398    
399 dpavlin 527 =head2 add_icon
400    
401     Frey::Foo->add_icon; # /static/icons/Frey/Foo.png
402     Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png
403    
404     =cut
405    
406 dpavlin 529 sub icon_path {
407     my ($self,$class,$variant) = @_;
408     my $icon = $class;
409 dpavlin 524 $icon =~ s{::}{/}g;
410 dpavlin 529 $icon .= "/$variant" if $variant;
411     my $path = 'static/icons/' . $icon . '.png';
412     if ( -e $path ) {
413 dpavlin 577 warn "# $class from $self icon_path $path" if $self->debug;
414 dpavlin 529 return $path;
415     } else {
416 dpavlin 564 $self->TODO( "add $path icon for $class" );
417 dpavlin 529 return undef;
418     }
419     }
420 dpavlin 524
421 dpavlin 529 sub add_icon {
422     my ($self,$variant) = @_;
423 dpavlin 524
424 dpavlin 529 my $class = ref($self);
425     $class = $self->class if $self->can('class');
426     my $icon_path = $self->icon_path( $class, $variant ) || return;
427 dpavlin 524
428 dpavlin 529 $icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|;
429     warn "# using icon $icon_path";
430    
431 dpavlin 527 =for later
432    
433 dpavlin 529 # FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work!
434     my $ico_path = $icon_path;
435     $ico_path =~ s{png$}{ico};
436     if ( ! -e $ico_path ) {
437     system "convert $icon_path $ico_path";
438     warn "# convert $icon_path $ico_path : $@";
439     }
440     $icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path;
441 dpavlin 524
442 dpavlin 527 =cut
443    
444 dpavlin 524 }
445    
446 dpavlin 532 my $warn_colors = {
447     '#' => '#444',
448     '##' => '#888',
449     };
450    
451     my $multiline_markers = {
452 dpavlin 535 '(' => ')',
453 dpavlin 532 '{' => '}',
454 dpavlin 535 '[' => ']',
455 dpavlin 532 '"' => '"',
456     };
457    
458     my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']';
459     warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re";
460    
461     sub log_path {
462     $Frey::Bootstrap::log_path || warn "no log_path?";
463     }
464    
465     sub warnings_html {
466     my ($self,$level) = shift;
467 dpavlin 535 $level ||= $self->debug,
468 dpavlin 532 my $path = $self->log_path;
469    
470 dpavlin 588 my $max = 50;
471     my $pos = 0;
472     my @warnings = ( '' x $max ); # XXX circualar buffer for 50 lines
473 dpavlin 532 my $line = 0;
474     my $multiline_end;
475    
476     open(my $log, '<', $path) || die "can't open $path: $!";
477     while(<$log>) {
478     chomp;
479     $line++;
480    
481     my $style = '';
482    
483 dpavlin 588 =for filter
484    
485 dpavlin 535 if ( $multiline_end ) {
486     if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) {
487 dpavlin 537 # warn "## $line end of $multiline_end in '$_'\n";
488 dpavlin 535 undef $multiline_end;
489     } else {
490 dpavlin 537 # warn "## $line skipped\n";
491 dpavlin 535 }
492     } elsif ( m{^(#*)\s+} ) {
493 dpavlin 532 my $l = $1 ? length($1) : 0;
494 dpavlin 535 if ( $l > $level ) {
495     undef $multiline_end;
496     $multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
497 dpavlin 537 # warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
498 dpavlin 535 next;
499     }
500 dpavlin 532
501 dpavlin 588 =cut
502     if ( m{^(#*)\s+} ) { # FIXME
503    
504 dpavlin 532 $style = $warn_colors->{$1}
505     ? ' style="color:' . $warn_colors->{$1} . '"'
506     : '';
507    
508 dpavlin 535 my $msg = $self->html_escape( $_ );
509     my $spacer = ' ';
510 dpavlin 543 if ( length($msg) > $self->html_dump_width ) {
511     $msg = substr( $msg, 0, $self->html_dump_width );
512 dpavlin 535 $spacer = '&hellip;'
513     }
514 dpavlin 588 $warnings[ $pos++ % $max ]
515     = $msg
516     # = ( $style ? qq|<span$style>$msg</span>| : $msg )
517     . $spacer
518     . qq|<a target="editor" href="/editor+$path+$line" style="float: right;">+$line</a><br/>|;
519 dpavlin 532 # FIXME <tt> should be <code> but CSS hates me
520     }
521     }
522     close($log) || die "can't close $path: $!";
523    
524 dpavlin 588 my $size = -s $path;
525    
526     my $warnings = join('',
527     map { $warnings[ ( $pos + $_ ) % $max ] || '' } 0 .. $max
528     );
529    
530     my $s = length($warnings);
531    
532 dpavlin 532 return
533 dpavlin 588 # need to wrap into span so we can have links in warnings
534     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>|
535     . $warnings
536     # . $self->editor_links( $warnings )
537     . qq|</code></span></a>|
538 dpavlin 532 ;
539     }
540    
541 dpavlin 543
542     =head2 backtrace
543    
544     Show backtrace with links to editor
545    
546     my @backtrace = $self->backtrace;
547    
548     =cut
549    
550     sub backtrace {
551     my ($self) = @_;
552    
553     my @backtrace;
554     foreach ( 0 .. 5 ) {
555     my (
556     $package,$path,$line
557     # subroutine hasargs
558     # wantarray evaltext is_require
559     # hints bitmask hinthash
560     ) = caller($_) or last;
561    
562     push @backtrace,
563 dpavlin 581 qq|via $package at $path line $line|;
564 dpavlin 543 }
565 dpavlin 591 #warn "# backtrace: ", dump( @backtrace ) if @backtrace;
566 dpavlin 543 return @backtrace;
567     }
568    
569 dpavlin 100 1;

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