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

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Revision 581 - (show annotations)
Fri Nov 28 13:16:47 2008 UTC (15 years, 4 months ago) by dpavlin
Original Path: trunk/lib/Frey/Web.pm
File size: 11875 byte(s)
remove Frey::Web from Frey::Run
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
21 has 'request_url' => (
22 is => 'rw',
23 isa => 'Uri', coerce => 1,
24 default => '/',
25 );
26
27 has 'title' => (
28 is => 'rw',
29 isa => 'Str',
30 lazy => 1,
31 default => sub {
32 my ($self) = @_;
33 ref($self);
34 },
35 );
36
37 has 'content_type' => (
38 is => 'rw',
39 isa => 'Str',
40 default => 'text/html',
41 documentation => 'Content-type header',
42 );
43
44 has 'dump_max_bytes' => (
45 is => 'rw',
46 isa => 'Int',
47 default => 4096,
48 documentation => 'maximum dump size sent to browser before truncation',
49 );
50
51 has 'inline_smaller_than' => (
52 is => 'rw',
53 isa => 'Int',
54 default => 10240,
55 documentation => 'inline JavaScript and CSS to reduce round-trips',
56 );
57
58 has 'html_dump_width' => (
59 documentation => 'crop longer lines in dumps',
60 is => 'rw',
61 isa => 'Int',
62 # required => 1, # FIXME we can't have required fields with defaults because Frey::Action isn't smart enough and asks for them
63 default => 128,
64 );
65
66 my %escape = ('<'=>'&lt;', '>'=>'&gt;', '&'=>'&amp;', '"'=>'&quot;');
67 my $escape_re = join '|' => keys %escape;
68
69 sub html_escape {
70 my ( $self, $html ) = @_;
71 $html =~ s/($escape_re)/$escape{$1}/g;
72 return $html;
73 }
74
75 sub html_dump {
76 my ( $self, $dump ) = @_;
77 $dump = dump( $dump ) if ref($dump);
78 my $width = $self->html_dump_width;
79 $dump =~ s{(\n[^\n]{$width})([^\n]+?)([^\n]{5})}{\n$1...$3}gs;
80 $dump = $self->html_escape( $dump );
81 $dump =~ s{\Q...\E}{&hellip;}gs;
82 # $dump =~ $self->editor_links( $dump ); # FIXME include this
83 return "<code>$dump</code>";
84 }
85
86 sub popup { my $self = shift; $self->popup_dropdown('popup', @_); }
87 sub dropdown { my $self = shift; $self->popup_dropdown('dropdown', @_); }
88
89 our $re_html = qr{<(?:!--.+?--|(\w+).+?/\1)>}s; # relaxed html check for one semi-valid tag
90
91 sub popup_dropdown {
92 my ( $self, $type, $name, $content, $full ) = @_;
93
94 $content = $self->html_dump($content) if ref $content;
95
96 $content = qq|<span>$content</span>| unless $content =~ m{^\s*<(span|a|code).+?/\1>\s*};
97
98 $content =~ s{<span>(<code>[^<]+</code>)</span>}{$1} && $self->TODO("code wrapped in span");
99
100 warn "## $type [$name] = ", length( $content ), " bytes" if $self->debug;
101
102 if ( $name =~ m{::} && $name !~ $re_html ) {
103 return qq|<a class="frey-$type" target="$name" href="/$name">$name $content</a>\n|;
104 } else {
105 return qq|<span class="frey-$type">$name $content</span>\n|;
106 }
107 }
108
109 sub _inline_path {
110 my ( $self, $path ) = @_;
111 -s $path < $self->inline_smaller_than;
112 }
113
114 sub _head_html {
115 my $self = shift;
116 my $out = '';
117 foreach my $path ( @head ) {
118 $path =~ s!^/!!;
119 if ( $path =~ m/\.js$/ ) {
120 $out .= $self->_inline_path( $path ) ?
121 qq|<!-- $path --><script type="text/javascript">\n| . read_file($path) . qq|\n</script>| :
122 qq|<script type="text/javascript" src="/$path"></script>|;
123 } elsif ( $path =~ m/\.css$/ ) {
124 $out .= $self->_inline_path( $path ) ?
125 qq|<!-- $path --><style type="text/css">\n| . read_file( $path ) . qq|\n</style>| :
126 qq|<link type="text/css" rel="stylesheet" href="/$path" media="screen">|;
127 } elsif ( $path =~ m{<.+>}s ) {
128 $out .= $path;
129 } else {
130 confess "don't know how to render $path";
131 }
132 $out .= "\n";
133 }
134 return $out;
135 }
136
137 =head2 add_head
138
139 $o->add_head( 'path/to/external.js' );
140
141 my $size = $o->add_head( 'path/to/external.css' );
142
143 $o->add_head( '<!-- html content -->' );
144
145 =cut
146
147 sub add_head {
148 my ( $self, $path ) = @_;
149 return if ! defined $path || $path eq '';
150 $path =~ s!^/!!;
151
152 if ( $path =~ $re_html ) {
153 push @head, $path;
154 } elsif ( -e $path ) {
155 if ( $path =~ m/\.(?:js|css)$/ ) {
156 push @head, $path;
157 } else {
158 confess "can't add_head( $path ) it's not js or css";
159 }
160 return -s $path;
161 } else {
162 confess "can't find $path: $!";
163 }
164
165 }
166
167 sub add_css {
168 my ($self,$css) = @_;
169 my ( $package, $path, $line ) = caller;
170 $self->add_head( qq|
171 <style type="text/css">
172 /* via $package at $path line $line */
173 $css
174 </style>
175 | );
176 }
177
178 our $reload_counter = 0;
179
180
181 =head2 page
182
183 $self->page(
184 title => 'page title',
185 head => '<!-- optional head markup -->',
186 body => '<b>Page Body</b>',
187 );
188
189 =cut
190
191 our @status;
192 sub status { @status };
193
194 our $icon_html;
195
196 sub page {
197 my $self = shift;
198 my $a = {@_};
199
200 warn "## page ",dump($a);
201
202 $reload_counter++;
203
204 my $status_line = '';
205
206 foreach my $part ( @status ) {
207 foreach my $name ( keys %$part ) {
208 $status_line .= $self->popup( $name, $part->{$name} );
209 }
210 }
211
212 my $url = $self->request_url;
213 $url =~ s{\?reload=\d+}{};
214
215 my $body = $a->{body};
216 $body ||= $self->as_markup if $self->can('as_markup');
217 if ( $self->content_type !~ m{html} ) {
218 warn "# return only $self body ", $self->content_type;
219 return $body
220 } elsif ( ! defined $body ) {
221 warn "# no body";
222 $body = '<!-- no body -->';
223 }
224
225 $status_line .= $self->warnings_html;
226
227 my ($exit,$description) = ('exit','stop server');
228 ($exit,$description) = ('restart','restart server')
229 if $ENV{FREY_RESTART}; # tune labels on exit link
230
231 my $right =
232 qq|
233 <span class="right">
234 <a title="reload $url" href="/reload$url">reload</a>
235 <a title="$description" href="/exit$url">$exit</a>
236 </span>
237 |;
238
239 my $svk = Frey::SVK->new;
240 my $info = $svk->info;
241 my $revision = $svk->info->{Revision} || '';
242 $revision = $1 if $info->{'Mirrored From'} =~ m{Rev\.\s+(\d+)};
243
244 $self->add_icon unless $icon_html;
245
246 my $html = join("\n",
247 qq|<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html><head>|,
248 $self->_head_html,
249 '<title>' . ( $self->title || $a->{title} || ref($self) ) . '</title>',
250 '<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">',
251 ( $icon_html || '<!-- no icon -->' ),
252 ( $a->{head} || '' ),
253 qq|
254 </head><body>
255 $body
256 <div class="frey-status-line">
257 <a href="/">Frey</a> $Frey::VERSION $revision
258 $status_line
259 $right
260 </div>
261 </body></html>
262 |,
263 );
264
265 warn "## >>> page ",length($html), " bytes\n" if $self->debug;
266
267 return $html;
268 }
269
270 =head2 editor
271
272 Create HTML editor link with optional line and title
273
274 my $html = $self->editor( $class, $line, $title );
275
276 =cut
277
278 sub editor {
279 my ( $self, $class, $line, $title ) = @_;
280 confess "need class" unless $class;
281 if ( ! defined $title ) {
282 $title = "edit $class";
283 $title .= " line $line" if $line;
284 }
285 $line ||= 1;
286 qq|<a target="editor" href="/editor+$class+$line"| .
287 ( $title ? qq| title="$title"| : '' ) .
288 qq|>$class</a>|;
289 }
290
291 =head2 editor_links
292
293 Create HTML links to editor for perl error message
294
295 my $html = $self->editor_links( $error )
296
297 =cut
298
299 sub editor_links {
300 my ( $self, $error ) = @_;
301
302 $error =~ s{at\s+(\S+)\s+line\s+(\d+)}
303 {at <a target="editor" href="/editor+$1+$2">$1</a> line $2}gsm;
304
305 $error =~ s{(via (?:package) "?)([\w:]+)("?)}
306 {$1<a target="editor" href="/editor+$2+1">$2</a>$3}gsm;
307
308 return $error;
309 }
310
311 sub error {
312 my $self = shift;
313 my $error = join(" ", @_);
314
315 my @backtrace = $self->backtrace;
316 $error .= "\n\t" . join( "\n\t", @backtrace ) if @backtrace;
317
318 warn "ERROR: $error\n";
319 return
320 qq|<pre class="frey-error">|
321 . $self->editor_links( $error ) .
322 qq|</pre>|
323 ;
324 }
325
326 =head1 Status line
327
328 =head2 add_status
329
330 $self->add_status( { name => { some => 'data' } } );
331
332 $self->add_status( "append to last status popup" );
333
334 =cut
335
336 sub add_status {
337 my ( $self, $data ) = @_;
338 push @status, { 'X' => [ $self->backtrace ] };
339 if ( ref($data) ) {
340 push @status, $data;
341 } else {
342 if ( defined $status[ $#status ] ) {
343 $status[ $#status ]->{ '+' } = $data;
344 } else {
345 push @status, { '+' => $data };
346 }
347 }
348 }
349
350 =head2 clean_status
351
352 Called at beginning of each request
353
354 $self->clean_status;
355
356 =cut
357
358 sub clean_status {
359 my ($self) = shift;
360 @head = ( 'static/frey.css' );
361 @status = (
362 { 'ClassBrowser' => Frey::ClassBrowser->new( usage_on_top => 0 )->as_markup },
363 { 'Bookmarklets' => Frey::Bookmarklet->new->as_markup },
364 { 'INC' => Frey::INC->new->as_markup },
365 );
366 $icon_html = '';
367 }
368
369 =head2 status_parts
370
371 Dump all status line parts
372
373 $self->status_parts
374
375 =cut
376
377 sub status_parts {
378 warn "## status parts ", dump( map { keys %$_ } @status );
379 }
380
381 =for debug
382
383 sub DEMOLISH {
384 my ( $self ) = @_;
385 warn "## $self DEMOLISH status ", $#status + 1, " elements ", dump( map { keys %$_ } @status ) if @status;
386 }
387
388 =cut
389
390 =head2 add_icon
391
392 Frey::Foo->add_icon; # /static/icons/Frey/Foo.png
393 Frey::Foo->add_icon('warning'); # /static/icons/Frey/Foo/warning.png
394
395 =cut
396
397 sub icon_path {
398 my ($self,$class,$variant) = @_;
399 my $icon = $class;
400 $icon =~ s{::}{/}g;
401 $icon .= "/$variant" if $variant;
402 my $path = 'static/icons/' . $icon . '.png';
403 if ( -e $path ) {
404 warn "# $class from $self icon_path $path" if $self->debug;
405 return $path;
406 } else {
407 $self->TODO( "add $path icon for $class" );
408 return undef;
409 }
410 }
411
412 sub add_icon {
413 my ($self,$variant) = @_;
414
415 my $class = ref($self);
416 $class = $self->class if $self->can('class');
417 my $icon_path = $self->icon_path( $class, $variant ) || return;
418
419 $icon_html .= qq|<link rel="icon" type="image/png" href="/$icon_path">|;
420 warn "# using icon $icon_path";
421
422 =for later
423
424 # FIXME http://en.wikipedia.org/wiki/Favicon suggest just rel="icon" but that doesn't seem to work!
425 my $ico_path = $icon_path;
426 $ico_path =~ s{png$}{ico};
427 if ( ! -e $ico_path ) {
428 system "convert $icon_path $ico_path";
429 warn "# convert $icon_path $ico_path : $@";
430 }
431 $icon_html .= qq|<link rel="shortcut icon" type="image/x-icon" href="/$ico_path">| if -e $ico_path;
432
433 =cut
434
435 }
436
437 my $warn_colors = {
438 '#' => '#444',
439 '##' => '#888',
440 };
441
442 my $multiline_markers = {
443 '(' => ')',
444 '{' => '}',
445 '[' => ']',
446 '"' => '"',
447 };
448
449 my $multiline_re = '[\\' . join('\\', keys %$multiline_markers ) . ']';
450 warn "## multiline markers ", dump( $multiline_markers ), " -> $multiline_re";
451
452 sub log_path {
453 $Frey::Bootstrap::log_path || warn "no log_path?";
454 }
455
456 sub warnings_html {
457 my ($self,$level) = shift;
458 $level ||= $self->debug,
459 my $path = $self->log_path;
460
461 my $warnings;
462 my $line = 0;
463 my $multiline_end;
464
465 open(my $log, '<', $path) || die "can't open $path: $!";
466 while(<$log>) {
467 chomp;
468 $line++;
469
470 my $style = '';
471
472 if ( $multiline_end ) {
473 if ( m{^\Q$multiline_end\E} || m{^\s.+\Q$multiline_end\E;$} ) {
474 # warn "## $line end of $multiline_end in '$_'\n";
475 undef $multiline_end;
476 } else {
477 # warn "## $line skipped\n";
478 }
479 } elsif ( m{^(#*)\s+} ) {
480 my $l = $1 ? length($1) : 0;
481 if ( $l > $level ) {
482 undef $multiline_end;
483 $multiline_end = $multiline_markers->{$1} if m{($multiline_re)$};
484 # warn "## $line start $1 .. $multiline_end level $l > $level for '$_'\n" if $multiline_end;
485 next;
486 }
487
488 $style = $warn_colors->{$1}
489 ? ' style="color:' . $warn_colors->{$1} . '"'
490 : '';
491
492 my $msg = $self->html_escape( $_ );
493 my $spacer = ' ';
494 if ( length($msg) > $self->html_dump_width ) {
495 $msg = substr( $msg, 0, $self->html_dump_width );
496 $spacer = '&hellip;'
497 }
498 $msg =~ s{^\s}{&nbsp;}g;
499 $warnings .= qq|<tt$style>$msg</tt>$spacer<small><a target="editor" href="/editor+$path+$line">+$line</a></small><br/>|;
500 # FIXME <tt> should be <code> but CSS hates me
501 }
502 }
503 close($log) || die "can't close $path: $!";
504
505 return
506 qq|<span class="frey-popup"><a target="editor" href="/editor+$path+$line" title="open $path level $level">warn</a><span>|
507 . $self->editor_links( $warnings )
508 . qq|</span></span>|
509 ;
510 }
511
512
513 =head2 backtrace
514
515 Show backtrace with links to editor
516
517 my @backtrace = $self->backtrace;
518
519 =cut
520
521 sub backtrace {
522 my ($self) = @_;
523
524 my @backtrace;
525 foreach ( 0 .. 5 ) {
526 my (
527 $package,$path,$line
528 # subroutine hasargs
529 # wantarray evaltext is_require
530 # hints bitmask hinthash
531 ) = caller($_) or last;
532
533 push @backtrace,
534 qq|via $package at $path line $line|;
535 }
536 warn "# backtrace: ", dump( @backtrace ) if @backtrace;
537 return @backtrace;
538 }
539
540 1;

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