/[Frey]/branches/zimbardo/lib/Frey/Web.pm
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Revision 591 - (show annotations)
Fri Nov 28 16:39:37 2008 UTC (15 years, 4 months ago) by dpavlin
Original Path: trunk/lib/Frey/Web.pm
File size: 12661 byte(s)
finish support for invoking all _as_ methods
1 package Frey::Web;
2 use Moose::Role;
3
4 with 'Frey::Session';
5
6 use Frey::Types;
7
8 #use Continuity::Widget::DomNode;
9 use Data::Dump qw/dump/;
10 use Carp qw/confess cluck/;
11 use File::Slurp;
12
13 use Frey::Bookmarklet;
14 use Frey::ClassBrowser;
15 use Frey::INC;
16
17 use Frey::SVK;
18
19 our @head;
20 sub head { @head }
21
22 has 'request_url' => (
23 is => 'rw',
24 isa => 'Uri', coerce => 1,
25 default => '/',
26 );
27
28 has 'title' => (
29 is => 'rw',
30 isa => 'Str',
31 lazy => 1,
32 default => sub {
33 my ($self) = @_;
34 ref($self);
35 },
36 );
37
38 has 'content_type' => (
39 is => 'rw',
40 isa => 'Str',
41 default => 'text/html',
42 documentation => 'Content-type header',
43 );
44
45 has 'dump_max_bytes' => (
46 is => 'rw',
47 isa => 'Int',
48 default => 4096,
49 documentation => 'maximum dump size sent to browser before truncation',
50 );
51
52 has 'inline_smaller_than' => (
53 is => 'rw',
54 isa => 'Int',
55 default => 10240,
56 documentation => 'inline JavaScript and CSS to reduce round-trips',
57 );
58
59 has 'html_dump_width' => (
60 documentation => 'crop longer lines in dumps',
61 is => 'rw',
62 isa => 'Int',
63 # 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 );
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 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 # $dump =~ $self->editor_links( $dump ); # FIXME include this
84 return "<code>$dump</code>";
85 }
86
87 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 $content =~ s{<span>(<code>[^<]+</code>)</span>}{$1} && $self->TODO("code wrapped in span");
100
101 warn "## $type [$name] = ", length( $content ), " bytes"; # if $self->debug; # FIXME
102
103 if ( $name =~ m{::} && $name !~ $re_html ) {
104 return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|;
105 } elsif ( $name =~ s{^\s*(<a)\s+}{$1 class="frey-$type"} ) {
106 return qq|$name $content\n|;
107 } else {
108 return qq|<span class="frey-$type">$name $content</span>\n|;
109 }
110 }
111
112 sub _inline_path {
113 my ( $self, $path ) = @_;
114 -s $path < $self->inline_smaller_than;
115 }
116
117 sub _head_html {
118 my $self = shift;
119 my $out = '';
120 foreach my $path ( @head ) {
121 $path =~ s!^/!!;
122 if ( $path =~ m/\.js$/ ) {
123 $out .= $self->_inline_path( $path ) ?
124 qq|<!-- $path --><script type="text/javascript">\n| . read_file($path) . qq|\n</script>| :
125 qq|<script type="text/javascript" src="/$path"></script>|;
126 } elsif ( $path =~ m/\.css$/ ) {
127 $out .= $self->_inline_path( $path ) ?
128 qq|<!-- $path --><style type="text/css">\n| . read_file( $path ) . qq|\n</style>| :
129 qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
130 } elsif ( $path =~ m{<.+>}s ) {
131 $out .= $path;
132 } else {
133 confess "don't know how to render $path";
134 }
135 $out .= "\n";
136 }
137 return $out;
138 }
139
140 =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 $o->add_head( '<!-- html content -->' );
147
148 =cut
149
150 sub add_head {
151 my ( $self, $path ) = @_;
152 return if ! defined $path || $path eq '';
153 $path =~ s!^/!!;
154
155 if ( $path =~ $re_html ) {
156 push @head, $path;
157 } elsif ( -e $path ) {
158 if ( $path =~ m/\.(?:js|css)$/ ) {
159 push @head, $path;
160 } else {
161 confess "can't add_head( $path ) it's not js or css";
162 }
163 return -s $path;
164 } else {
165 confess "can't find $path: $!";
166 }
167
168 }
169
170 sub add_css {
171 my ($self,$css) = @_;
172 my ( $package, $path, $line ) = caller;
173 $self->add_head( qq|
174 <style type="text/css">
175 /* via $package at $path line $line */
176 $css
177 </style>
178 | );
179 }
180
181 our $reload_counter = 0;
182
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 our @status;
195 sub status { @status };
196
197 our $icon_html;
198
199 sub page {
200 my $self = shift;
201 my $a = {@_};
202
203 warn "## page ",dump($a);
204
205 $reload_counter++;
206
207 my $status_line = '';
208
209 foreach my $part ( @status ) {
210 foreach my $name ( keys %$part ) {
211 $status_line .= $self->popup( $name, $part->{$name} );
212 }
213 }
214
215 my $url = $self->request_url;
216 $url =~ s{\?reload=\d+}{};
217
218 my $body = $a->{body};
219 if ( ! $body ) {
220 my $run = $a->{run} || 'as_markup';
221 warn "# no body, invoke $self->$run";
222 $body = $self->$run;
223 }
224 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
232 $status_line .= $self->warnings_html;
233
234 my ($exit,$description) = ('exit','stop server');
235 ($exit,$description) = ('restart','restart server')
236 if $ENV{FREY_RESTART}; # tune labels on exit link
237
238 my $right =
239 qq|
240 <span class="right">
241 <a title="reload $url" href="/reload$url">reload</a>
242 <a title="$description" href="/exit$url">$exit</a>
243 </span>
244 |;
245
246 my $svk = Frey::SVK->new;
247 my $info = $svk->info;
248 my $revision = $svk->info->{Revision} || '';
249 $revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};
250
251 $self->add_icon unless $icon_html;
252
253 my $html = join("\n",
254 qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
255 $self->_head_html,
256 '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
257 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
258 ( $icon_html || '<!-- no icon -->' ),
259 ( $a->{head} || '' ),
260 qq|
261 </head><body>
262 $body
263 <div class="frey-status-line">
264 <a href="/">Frey</a> $Frey::VERSION $revision
265 $status_line
266 $right
267 </div>
268 </body></html>
269 |,
270 );
271
272 warn "## >>> page ",length($html), " bytes\n" if $self->debug;
273
274 return $html;
275 }
276
277 =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 if ( ! defined $title ) {
289 $title = "edit $class";
290 $title .= " line $line" if $line;
291 }
292 $line ||= 1;
293 qq|<a target="editor" href="/editor+$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 sub editor_links {
307 my ( $self, $error ) = @_;
308
309 # $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 $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 $error =~ s{(via (?:package) "?)([\w:]+)("?)}
315 {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
316
317 return $error;
318 }
319
320 sub error {
321 my $self = shift;
322 my $error = join(" ", @_);
323
324 my @backtrace = $self->backtrace;
325 $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
326
327 warn "ERROR: $error\n";
328 return
329 qq|<pre class="frey-error">|
330 . $self->editor_links( $error ) .
331 qq|</pre>|
332 ;
333 }
334
335 =head1 Status line
336
337 =head2 add_status
338
339 $self->add_status( { name => { some => 'data' } } );
340
341 $self->add_status( "append to last status popup" );
342
343 =cut
344
345 sub add_status {
346 my ( $self, $data ) = @_;
347 push @status, { 'X' => [ $self->backtrace ] };
348 if ( ref($data) ) {
349 push @status, $data;
350 } else {
351 if ( defined $status[ $#status ] ) {
352 $status[ $#status ]->{ '+' } = $data;
353 } else {
354 push @status, { '+' => $data };
355 }
356 }
357 }
358
359 =head2 clean_status
360
361 Called at beginning of each request
362
363 $self->clean_status;
364
365 =cut
366
367 sub clean_status {
368 my ($self) = shift;
369 @head = ( 'static/frey.css' );
370 @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 $icon_html = '';
376 }
377
378 =head2 status_parts
379
380 Dump all status line parts
381
382 $self->status_parts
383
384 =cut
385
386 sub status_parts {
387 warn "## status parts ", dump( map { keys %$_ } @status );
388 }
389
390 =for debug
391
392 sub DEMOLISH {
393 my ( $self ) = @_;
394 warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
395 }
396
397 =cut
398
399 =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 sub icon_path {
407 my ($self,$class,$variant) = @_;
408 my $icon = $class;
409 $icon =~ s{::}{/}g;
410 $icon .= "/$variant" if $variant;
411 my $path = 'static/icons/' . $icon . '.png';
412 if ( -e $path ) {
413 warn "# $class from $self icon_path $path" if $self->debug;
414 return $path;
415 } else {
416 $self->TODO( "add $path icon for $class" );
417 return undef;
418 }
419 }
420
421 sub add_icon {
422 my ($self,$variant) = @_;
423
424 my $class = ref($self);
425 $class = $self->class if $self->can('class');
426 my $icon_path = $self->icon_path( $class, $variant ) || return;
427
428 $icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|;
429 warn "# using icon $icon_path";
430
431 =for later
432
433 # 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
442 =cut
443
444 }
445
446 my $warn_colors = {
447 '#' => '#444',
448 '##' => '#888',
449 };
450
451 my $multiline_markers = {
452 '(' => ')',
453 '{' => '}',
454 '[' => ']',
455 '"' => '"',
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 $level ||= $self->debug,
468 my $path = $self->log_path;
469
470 my $max = 50;
471 my $pos = 0;
472 my @warnings = ( '' x $max ); # XXX circualar buffer for 50 lines
473 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 =for filter
484
485 if ( $multiline_end ) {
486 if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) {
487 # warn "## $line end of $multiline_end in '$_'\n";
488 undef $multiline_end;
489 } else {
490 # warn "## $line skipped\n";
491 }
492 } elsif ( m{^(#*)\s+} ) {
493 my $l = $1 ? length($1) : 0;
494 if ( $l > $level ) {
495 undef $multiline_end;
496 $multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
497 # warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
498 next;
499 }
500
501 =cut
502 if ( m{^(#*)\s+} ) { # FIXME
503
504 $style = $warn_colors->{$1}
505 ? ' style="color:' . $warn_colors->{$1} . '"'
506 : '';
507
508 my $msg = $self->html_escape( $_ );
509 my $spacer = ' ';
510 if ( length($msg) > $self->html_dump_width ) {
511 $msg = substr( $msg, 0, $self->html_dump_width );
512 $spacer = '&hellip;'
513 }
514 $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 # FIXME <tt> should be <code> but CSS hates me
520 }
521 }
522 close($log) || die "can't close $path: $!";
523
524 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 return
533 # 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 ;
539 }
540
541
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 qq|via $package at $path line $line|;
564 }
565 #warn "# backtrace: ", dump( @backtrace ) if @backtrace;
566 return @backtrace;
567 }
568
569 1;

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