/[Frey]/branches/zimbardo/lib/Frey/Web.pm
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Annotation of /branches/zimbardo/lib/Frey/Web.pm

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Revision 588 - (hide annotations)
Fri Nov 28 15:07:03 2008 UTC (15 years, 4 months ago) by dpavlin
Original Path: trunk/lib/Frey/Web.pm
File size: 12434 byte(s)
warnings cleanup, needs more work
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     our $re_html = qr{<(?:!--.+?--|(\w+).+?/\1)>}s; # relaxed html check for one semi-valid tag
91    
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 546 warn "## $type [$name] = ", length( $content ), " bytes" if $self->debug;
102    
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     $body ||= $self->as_markup if $self->can('as_markup');
220     if ( $self->content_type !~ m{html} ) {
221     warn "# return only $self body ", $self->content_type;
222     return $body
223     } elsif ( ! defined $body ) {
224     warn "# no body";
225     $body = '<!-- no body -->';
226     }
227 dpavlin 448
228 dpavlin 532 $status_line .= $self->warnings_html;
229 dpavlin 482
230 dpavlin 477 my ($exit,$description) = ('exit','stop server');
231     ($exit,$description) = ('restart','restart server')
232     if $ENV{FREY_RESTART}; # tune labels on exit link
233    
234 dpavlin 473 my $right =
235     qq|
236     <span class="right">
237 dpavlin 519 <a title="reload $url" href="/reload$url">reload</a>
238 dpavlin 477 <a title="$description" href="/exit$url">$exit</a>
239 dpavlin 473 </span>
240     |;
241    
242 dpavlin 577 my $svk = Frey::SVK->new;
243     my $info = $svk->info;
244     my $revision = $svk->info->{Revision} || '';
245 dpavlin 516 $revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};
246 dpavlin 505
247 dpavlin 527 $self->add_icon unless $icon_html;
248 dpavlin 524
249 dpavlin 388 my $html = join("\n",
250     qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
251     $self->_head_html,
252 dpavlin 418 '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
253 dpavlin 388 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
254 dpavlin 527 ( $icon_html || '<!-- no icon -->' ),
255 dpavlin 388 ( $a->{head} || '' ),
256     qq|
257 dpavlin 448 </head><body>
258     $body
259 dpavlin 388 <div class="frey-status-line">
260 dpavlin 505 <a href="/">Frey</a> $Frey::VERSION $revision
261 dpavlin 388 $status_line
262 dpavlin 473 $right
263 dpavlin 210 </div>
264     </body></html>
265 dpavlin 388 |,
266     );
267 dpavlin 100
268 dpavlin 121 warn "## >>> page ",length($html), " bytes\n" if $self->debug;
269 dpavlin 100
270 dpavlin 121 return $html;
271 dpavlin 100 }
272    
273 dpavlin 480 =head2 editor
274    
275     Create HTML editor link with optional line and title
276    
277     my $html = $self->editor( $class, $line, $title );
278    
279     =cut
280    
281     sub editor {
282     my ( $self, $class, $line, $title ) = @_;
283     confess "need class" unless $class;
284 dpavlin 519 if ( ! defined $title ) {
285     $title = "edit $class";
286     $title .= " line $line" if $line;
287     }
288     $line ||= 1;
289 dpavlin 480 qq|<a target="editor" href="/editor+$class+$line"| .
290     ( $title ? qq| title="$title"| : '' ) .
291     qq|>$class</a>|;
292     }
293    
294     =head2 editor_links
295    
296     Create HTML links to editor for perl error message
297    
298     my $html = $self->editor_links( $error )
299    
300     =cut
301    
302 dpavlin 468 sub editor_links {
303     my ( $self, $error ) = @_;
304    
305     $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
306     {at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
307    
308 dpavlin 581 $error =~ s{(via (?:package) "?)([\w:]+)("?)}
309 dpavlin 468 {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
310    
311     return $error;
312     }
313    
314 dpavlin 350 sub error {
315 dpavlin 397 my $self = shift;
316     my $error = join(" ", @_);
317 dpavlin 460
318 dpavlin 465 my @backtrace = $self->backtrace;
319     $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
320 dpavlin 460
321     warn "ERROR: $error\n";
322 dpavlin 468 return
323     qq|<pre class="frey-error">|
324     . $self->editor_links( $error ) .
325     qq|</pre>|
326     ;
327 dpavlin 350 }
328    
329 dpavlin 577 =head1 Status line
330    
331     =head2 add_status
332    
333 dpavlin 581 $self->add_status( { name => { some => 'data' } } );
334 dpavlin 577
335     $self->add_status( "append to last status popup" );
336    
337     =cut
338    
339 dpavlin 507 sub add_status {
340     my ( $self, $data ) = @_;
341 dpavlin 581 push @status, { 'X' => [ $self->backtrace ] };
342 dpavlin 577 if ( ref($data) ) {
343     push @status, $data;
344     } else {
345 dpavlin 581 if ( defined $status[ $#status ] ) {
346     $status[ $#status ]->{ '+' } = $data;
347     } else {
348     push @status, { '+' => $data };
349     }
350 dpavlin 577 }
351 dpavlin 507 }
352    
353 dpavlin 577 =head2 clean_status
354    
355     Called at beginning of each request
356    
357     $self->clean_status;
358    
359     =cut
360    
361 dpavlin 519 sub clean_status {
362 dpavlin 577 my ($self) = shift;
363 dpavlin 578 @head = ( 'static/frey.css' );
364 dpavlin 581 @status = (
365     { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
366     { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
367     { 'INC' => Frey::INC->new->as_markup },
368     );
369 dpavlin 527 $icon_html = '';
370 dpavlin 519 }
371    
372 dpavlin 577 =head2 status_parts
373    
374     Dump all status line parts
375    
376     $self->status_parts
377    
378     =cut
379    
380 dpavlin 519 sub status_parts {
381     warn "## status parts ", dump( map { keys %$_ } @status );
382     }
383    
384 dpavlin 568 =for debug
385    
386 dpavlin 518 sub DEMOLISH {
387     my ( $self ) = @_;
388 dpavlin 529 warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
389 dpavlin 518 }
390    
391 dpavlin 568 =cut
392    
393 dpavlin 527 =head2 add_icon
394    
395     Frey::Foo->add_icon; # /static/icons/Frey/Foo.png
396     Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png
397    
398     =cut
399    
400 dpavlin 529 sub icon_path {
401     my ($self,$class,$variant) = @_;
402     my $icon = $class;
403 dpavlin 524 $icon =~ s{::}{/}g;
404 dpavlin 529 $icon .= "/$variant" if $variant;
405     my $path = 'static/icons/' . $icon . '.png';
406     if ( -e $path ) {
407 dpavlin 577 warn "# $class from $self icon_path $path" if $self->debug;
408 dpavlin 529 return $path;
409     } else {
410 dpavlin 564 $self->TODO( "add $path icon for $class" );
411 dpavlin 529 return undef;
412     }
413     }
414 dpavlin 524
415 dpavlin 529 sub add_icon {
416     my ($self,$variant) = @_;
417 dpavlin 524
418 dpavlin 529 my $class = ref($self);
419     $class = $self->class if $self->can('class');
420     my $icon_path = $self->icon_path( $class, $variant ) || return;
421 dpavlin 524
422 dpavlin 529 $icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|;
423     warn "# using icon $icon_path";
424    
425 dpavlin 527 =for later
426    
427 dpavlin 529 # FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work!
428     my $ico_path = $icon_path;
429     $ico_path =~ s{png$}{ico};
430     if ( ! -e $ico_path ) {
431     system "convert $icon_path $ico_path";
432     warn "# convert $icon_path $ico_path : $@";
433     }
434     $icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path;
435 dpavlin 524
436 dpavlin 527 =cut
437    
438 dpavlin 524 }
439    
440 dpavlin 532 my $warn_colors = {
441     '#' => '#444',
442     '##' => '#888',
443     };
444    
445     my $multiline_markers = {
446 dpavlin 535 '(' => ')',
447 dpavlin 532 '{' => '}',
448 dpavlin 535 '[' => ']',
449 dpavlin 532 '"' => '"',
450     };
451    
452     my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']';
453     warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re";
454    
455     sub log_path {
456     $Frey::Bootstrap::log_path || warn "no log_path?";
457     }
458    
459     sub warnings_html {
460     my ($self,$level) = shift;
461 dpavlin 535 $level ||= $self->debug,
462 dpavlin 532 my $path = $self->log_path;
463    
464 dpavlin 588 my $max = 50;
465     my $pos = 0;
466     my @warnings = ( '' x $max ); # XXX circualar buffer for 50 lines
467 dpavlin 532 my $line = 0;
468     my $multiline_end;
469    
470     open(my $log, '<', $path) || die "can't open $path: $!";
471     while(<$log>) {
472     chomp;
473     $line++;
474    
475     my $style = '';
476    
477 dpavlin 588 =for filter
478    
479 dpavlin 535 if ( $multiline_end ) {
480     if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) {
481 dpavlin 537 # warn "## $line end of $multiline_end in '$_'\n";
482 dpavlin 535 undef $multiline_end;
483     } else {
484 dpavlin 537 # warn "## $line skipped\n";
485 dpavlin 535 }
486     } elsif ( m{^(#*)\s+} ) {
487 dpavlin 532 my $l = $1 ? length($1) : 0;
488 dpavlin 535 if ( $l > $level ) {
489     undef $multiline_end;
490     $multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
491 dpavlin 537 # warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
492 dpavlin 535 next;
493     }
494 dpavlin 532
495 dpavlin 588 =cut
496     if ( m{^(#*)\s+} ) { # FIXME
497    
498 dpavlin 532 $style = $warn_colors->{$1}
499     ? ' style="color:' . $warn_colors->{$1} . '"'
500     : '';
501    
502 dpavlin 535 my $msg = $self->html_escape( $_ );
503     my $spacer = ' ';
504 dpavlin 543 if ( length($msg) > $self->html_dump_width ) {
505     $msg = substr( $msg, 0, $self->html_dump_width );
506 dpavlin 535 $spacer = '&hellip;'
507     }
508 dpavlin 588 $warnings[ $pos++ % $max ]
509     = $msg
510     # = ( $style ? qq|<span$style>$msg</span>| : $msg )
511     . $spacer
512     . qq|<a target="editor" href="/editor+$path+$line" style="float: right;">+$line</a><br/>|;
513 dpavlin 532 # FIXME <tt> should be <code> but CSS hates me
514     }
515     }
516     close($log) || die "can't close $path: $!";
517    
518 dpavlin 588 my $size = -s $path;
519    
520     my $warnings = join('',
521     map { $warnings[ ( $pos + $_ ) % $max ] || '' } 0 .. $max
522     );
523    
524     my $s = length($warnings);
525    
526 dpavlin 532 return
527 dpavlin 588 # need to wrap into span so we can have links in warnings
528     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>|
529     . $warnings
530     # . $self->editor_links( $warnings )
531     . qq|</code></span></a>|
532 dpavlin 532 ;
533     }
534    
535 dpavlin 543
536     =head2 backtrace
537    
538     Show backtrace with links to editor
539    
540     my @backtrace = $self->backtrace;
541    
542     =cut
543    
544     sub backtrace {
545     my ($self) = @_;
546    
547     my @backtrace;
548     foreach ( 0 .. 5 ) {
549     my (
550     $package,$path,$line
551     # subroutine hasargs
552     # wantarray evaltext is_require
553     # hints bitmask hinthash
554     ) = caller($_) or last;
555    
556     push @backtrace,
557 dpavlin 581 qq|via $package at $path line $line|;
558 dpavlin 543 }
559     warn "# backtrace: ", dump( @backtrace ) if @backtrace;
560     return @backtrace;
561     }
562    
563 dpavlin 100 1;

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