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1 | package Catalyst::Plugin::Static::Simple; |
2 | |
3 | use strict; |
4 | use base qw/Class::Accessor::Fast Class::Data::Inheritable/; |
5 | use File::Slurp; |
6 | use File::stat; |
7 | use MIME::Types; |
8 | use NEXT; |
9 | |
fa43d6b5 |
10 | our $VERSION = '0.09'; |
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11 | |
2268e329 |
12 | __PACKAGE__->mk_classdata( qw/_static_mime_types/ ); |
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13 | __PACKAGE__->mk_accessors( qw/_static_file |
2268e329 |
14 | _static_apache_mode |
15 | _static_debug_message/ ); |
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16 | |
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17 | # prepare_action is used to first check if the request path is a static file. |
18 | # If so, we skip all other prepare_action steps to improve performance. |
19 | sub prepare_action { |
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20 | my $c = shift; |
d6d29b9b |
21 | my $path = $c->req->path; |
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22 | |
d6d29b9b |
23 | # is the URI in a static-defined path? |
24 | foreach my $dir ( @{ $c->config->{static}->{dirs} } ) { |
b1d96e3e |
25 | my $re = ( $dir =~ /^qr\//xms ) ? eval $dir : qr/^${dir}/; |
26 | if ($@) { |
27 | $c->error( "Error compiling static dir regex '$dir': $@" ); |
28 | } |
d6d29b9b |
29 | if ( $path =~ $re ) { |
30 | if ( $c->_locate_static_file ) { |
31 | $c->_debug_msg( "from static directory" ) |
32 | if ( $c->config->{static}->{debug} ); |
b1d96e3e |
33 | return; |
d6d29b9b |
34 | } else { |
35 | $c->_debug_msg( "404: file not found: $path" ) |
36 | if ( $c->config->{static}->{debug} ); |
37 | $c->res->status( 404 ); |
b1d96e3e |
38 | return; |
d6d29b9b |
39 | } |
40 | } |
41 | } |
42 | |
43 | # Does the path have an extension? |
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44 | if ( $path =~ /.*\.(\S{1,})$/xms ) { |
d6d29b9b |
45 | # and does it exist? |
b1d96e3e |
46 | return if ( $c->_locate_static_file ); |
d6d29b9b |
47 | } |
48 | |
b1d96e3e |
49 | return $c->NEXT::prepare_action(@_); |
d6d29b9b |
50 | } |
51 | |
b1d96e3e |
52 | # dispatch takes the file found during prepare_action and serves it |
53 | sub dispatch { |
54 | my $c = shift; |
55 | |
2268e329 |
56 | return if ( $c->res->status != 200 ); |
b1d96e3e |
57 | |
58 | if ( $c->_static_file ) { |
2de14076 |
59 | if ( $c->config->{static}->{no_logs} ) { |
60 | if ( $c->log->can('abort') ) { $c->log->abort(1) ; } |
61 | } |
b1d96e3e |
62 | return $c->_serve_static; |
63 | } |
64 | else { |
65 | return $c->NEXT::dispatch(@_); |
66 | } |
67 | } |
68 | |
69 | # finalize serves up final header information |
d6d29b9b |
70 | sub finalize { |
71 | my $c = shift; |
72 | |
73 | # display all log messages |
74 | if ( $c->config->{static}->{debug} && scalar @{$c->_debug_msg} ) { |
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75 | $c->log->debug( "Static::Simple: Serving " . |
76 | join( " ", @{$c->_debug_msg} ) ); |
d6d29b9b |
77 | } |
78 | |
79 | # return DECLINED when under mod_perl |
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80 | if ( $c->config->{static}->{use_apache} && $c->_static_apache_mode ) { |
81 | my $engine = $c->_static_apache_mode; |
d6d29b9b |
82 | no strict 'subs'; |
83 | if ( $engine == 13 ) { |
84 | return Apache::Constants::DECLINED; |
b1d96e3e |
85 | } |
86 | elsif ( $engine == 19 ) { |
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87 | return Apache::Const::DECLINED; |
b1d96e3e |
88 | } |
89 | elsif ( $engine == 20 ) { |
d6d29b9b |
90 | return Apache2::Const::DECLINED; |
91 | } |
92 | } |
93 | |
b1d96e3e |
94 | if ( $c->res->status =~ /^(1\d\d|[23]04)$/xms ) { |
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95 | $c->res->headers->remove_content_headers; |
96 | return $c->finalize_headers; |
97 | } |
b1d96e3e |
98 | |
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99 | return $c->NEXT::finalize(@_); |
100 | } |
101 | |
102 | sub setup { |
103 | my $c = shift; |
104 | |
105 | $c->NEXT::setup(@_); |
106 | |
107 | $c->config->{static}->{dirs} ||= []; |
108 | $c->config->{static}->{include_path} ||= [ $c->config->{root} ]; |
109 | $c->config->{static}->{mime_types} ||= {}; |
110 | $c->config->{static}->{use_apache} ||= 0; |
111 | $c->config->{static}->{debug} ||= $c->debug; |
2de14076 |
112 | $c->config->{static}->{no_logs} ||= 1; |
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113 | |
114 | # load up a MIME::Types object, only loading types with |
115 | # at least 1 file extension |
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116 | $c->_static_mime_types( MIME::Types->new( only_complete => 1 ) ); |
117 | |
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118 | # preload the type index hash so it's not built on the first request |
2268e329 |
119 | $c->_static_mime_types->create_type_index; |
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120 | } |
121 | |
122 | # Search through all included directories for the static file |
123 | # Based on Template Toolkit INCLUDE_PATH code |
124 | sub _locate_static_file { |
125 | my $c = shift; |
126 | |
127 | my $path = $c->req->path; |
128 | |
129 | my @ipaths = @{ $c->config->{static}->{include_path} }; |
130 | my $dpaths; |
131 | my $count = 64; # maximum number of directories to search |
132 | |
133 | while ( @ipaths && --$count) { |
134 | my $dir = shift @ipaths || next; |
135 | |
136 | if ( ref $dir eq 'CODE' ) { |
137 | eval { $dpaths = &$dir( $c ) }; |
138 | if ($@) { |
139 | $c->log->error( "Static::Simple: include_path error: " . $@ ); |
140 | } else { |
141 | unshift( @ipaths, @$dpaths ); |
142 | next; |
143 | } |
144 | } else { |
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145 | $dir =~ s/\/$//xms; |
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146 | if ( -d $dir && -f $dir . '/' . $path ) { |
147 | $c->_debug_msg( $dir . "/" . $path ) |
148 | if ( $c->config->{static}->{debug} ); |
149 | return $c->_static_file( $dir . '/' . $path ); |
150 | } |
151 | } |
152 | } |
153 | |
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154 | return; |
d6d29b9b |
155 | } |
156 | |
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157 | sub _serve_static { |
158 | my $c = shift; |
159 | |
160 | my $path = $c->req->path; |
161 | |
162 | # abort if running under mod_perl |
163 | # note that we do not use the Apache method if the user has defined |
b1d96e3e |
164 | # custom MIME types or is using include paths, as Apache would not know |
165 | # about them |
166 | APACHE_CHECK: |
167 | { |
168 | if ( $c->config->{static}->{use_apache} ) { |
169 | # check engine version |
170 | last APACHE_CHECK unless $c->engine =~ /Apache::MP(\d{2})/xms; |
171 | my $engine = $1; |
172 | |
173 | # skip if we have user-defined MIME types |
174 | last APACHE_CHECK if keys %{ $c->config->{static}->{mime_types} }; |
175 | |
176 | # skip if the file is in a user-defined include path |
177 | last APACHE_CHECK if $c->_static_file |
178 | ne $c->config->{root} . '/' . $path; |
179 | |
180 | # check that Apache will serve the correct file |
181 | if ( $c->apache->document_root ne $c->config->{root} ) { |
182 | $c->log->warn( "Static::Simple: Your Apache DocumentRoot" |
183 | . " must be set to " . $c->config->{root} |
184 | . " to use the Apache feature. Yours is" |
185 | . " currently " . $c->apache->document_root |
186 | ); |
187 | } |
188 | else { |
189 | $c->_debug_msg( "DECLINED to Apache" ) |
190 | if ( $c->config->{static}->{debug} ); |
2268e329 |
191 | $c->_static_apache_mode( $engine ); |
192 | return; |
b1d96e3e |
193 | } |
d6d29b9b |
194 | } |
195 | } |
196 | |
197 | my $type = $c->_ext_to_type; |
198 | |
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199 | my $full_path = $c->_static_file; |
200 | my $stat = stat( $full_path ); |
d6d29b9b |
201 | |
202 | # the below code all from C::P::Static |
203 | if ( $c->req->headers->if_modified_since ) { |
204 | if ( $c->req->headers->if_modified_since == $stat->mtime ) { |
205 | $c->res->status( 304 ); # Not Modified |
206 | $c->res->headers->remove_content_headers; |
207 | return 1; |
208 | } |
209 | } |
210 | |
b1d96e3e |
211 | my $content = read_file( $full_path ); |
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212 | $c->res->headers->content_type( $type ); |
213 | $c->res->headers->content_length( $stat->size ); |
214 | $c->res->headers->last_modified( $stat->mtime ); |
215 | $c->res->output( $content ); |
b1d96e3e |
216 | return 1; |
217 | } |
218 | |
219 | # looks up the correct MIME type for the current file extension |
220 | sub _ext_to_type { |
221 | my $c = shift; |
b1d96e3e |
222 | my $path = $c->req->path; |
b1d96e3e |
223 | |
224 | if ( $path =~ /.*\.(\S{1,})$/xms ) { |
225 | my $ext = $1; |
226 | my $user_types = $c->config->{static}->{mime_types}; |
2268e329 |
227 | my $type = $user_types->{$ext} |
228 | || $c->_static_mime_types->mimeTypeOf( $ext ); |
229 | if ( $type ) { |
b1d96e3e |
230 | $c->_debug_msg( "as $type" ) |
231 | if ( $c->config->{static}->{debug} ); |
232 | return $type; |
233 | } |
234 | else { |
235 | $c->_debug_msg( "as text/plain (unknown extension $ext)" ) |
236 | if ( $c->config->{static}->{debug} ); |
237 | return 'text/plain'; |
238 | } |
239 | } |
240 | else { |
241 | $c->_debug_msg( 'as text/plain (no extension)' ) |
242 | if ( $c->config->{static}->{debug} ); |
243 | return 'text/plain'; |
244 | } |
d6d29b9b |
245 | } |
246 | |
247 | sub _debug_msg { |
248 | my ( $c, $msg ) = @_; |
249 | |
2268e329 |
250 | if ( !defined $c->_static_debug_message ) { |
251 | $c->_static_debug_message( [] ); |
b1d96e3e |
252 | } |
d6d29b9b |
253 | |
b1d96e3e |
254 | if ( $msg ) { |
2268e329 |
255 | push @{ $c->_static_debug_message }, $msg; |
b1d96e3e |
256 | } |
d6d29b9b |
257 | |
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258 | return $c->_static_debug_message; |
d6d29b9b |
259 | } |
b1d96e3e |
260 | |
261 | 1; |
262 | __END__ |
263 | |
264 | =head1 NAME |
265 | |
266 | Catalyst::Plugin::Static::Simple - Make serving static pages painless. |
267 | |
268 | =head1 SYNOPSIS |
269 | |
270 | use Catalyst; |
271 | MyApp->setup( qw/Static::Simple/ ); |
272 | |
273 | =head1 DESCRIPTION |
274 | |
275 | The Static::Simple plugin is designed to make serving static content in your |
276 | application during development quick and easy, without requiring a single |
277 | line of code from you. |
278 | |
279 | It will detect static files used in your application by looking for file |
280 | extensions in the URI. By default, you can simply load this plugin and it |
281 | will immediately begin serving your static files with the correct MIME type. |
282 | The light-weight MIME::Types module is used to map file extensions to |
283 | IANA-registered MIME types. |
284 | |
285 | Note that actions mapped to paths using periods (.) will still operate |
286 | properly. |
287 | |
288 | You may further tweak the operation by adding configuration options, described |
289 | below. |
290 | |
291 | =head1 ADVANCED CONFIGURATION |
292 | |
293 | Configuration is completely optional and is specified within |
294 | MyApp->config->{static}. If you use any of these options, the module will |
295 | probably feel less "simple" to you! |
296 | |
2de14076 |
297 | =head2 Aborting request logging |
298 | |
299 | With Catalyst 5.50, there has been added support for dropping logging for a |
300 | request. We've turned this on by default, as static logging tends to clutter |
301 | the Log API, however, if you want logging of static requests, you can easily |
302 | turn it on by setting MyApp->config->{static}->{no_logs} to 0. |
303 | |
2268e329 |
304 | =head2 Forcing directories into static mode |
b1d96e3e |
305 | |
306 | Define a list of top-level directories beneath your 'root' directory that |
307 | should always be served in static mode. Regular expressions may be |
308 | specified using qr//. |
309 | |
310 | MyApp->config->{static}->{dirs} = [ |
311 | 'static', |
312 | qr/^(images|css)/, |
313 | ]; |
314 | |
fa43d6b5 |
315 | =head2 Including additional directories |
b1d96e3e |
316 | |
317 | You may specify a list of directories in which to search for your static |
318 | files. The directories will be searched in order and will return the first |
319 | file found. Note that your root directory is B<not> automatically added to |
320 | the search path when you specify an include_path. You should use |
321 | MyApp->config->{root} to add it. |
322 | |
323 | MyApp->config->{static}->{include_path} = [ |
324 | '/path/to/overlay', |
325 | \&incpath_generator, |
326 | MyApp->config->{root} |
327 | ]; |
328 | |
329 | With the above setting, a request for the file /images/logo.jpg will search |
330 | for the following files, returning the first one found: |
331 | |
332 | /path/to/overlay/images/logo.jpg |
333 | /dynamic/path/images/logo.jpg |
334 | /your/app/home/root/images/logo.jpg |
335 | |
336 | The include path can contain a subroutine reference to dynamically return a |
337 | list of available directories. This method will receive the $c object as a |
338 | parameter and should return a reference to a list of directories. Errors can |
339 | be reported using die(). This method will be called every time a file is |
340 | requested that appears to be a static file (i.e. it has an extension). |
341 | |
342 | For example: |
343 | |
344 | sub incpath_generator { |
345 | my $c = shift; |
346 | |
347 | if ( $c->session->{customer_dir} ) { |
348 | return [ $c->session->{customer_dir} ]; |
349 | } else { |
350 | die "No customer dir defined."; |
351 | } |
352 | } |
353 | |
2268e329 |
354 | =head2 Custom MIME types |
b1d96e3e |
355 | |
356 | To override or add to the default MIME types set by the MIME::Types module, |
357 | you may enter your own extension to MIME type mapping. |
358 | |
359 | MyApp->config->{static}->{mime_types} = { |
360 | jpg => 'image/jpg', |
361 | png => 'image/png', |
362 | }; |
2268e329 |
363 | |
364 | =head2 Apache integration and performance |
b1d96e3e |
365 | |
366 | Optionally, when running under mod_perl, Static::Simple can return DECLINED |
367 | on static files to allow Apache to serve the file. A check is first done to |
368 | make sure that Apache's DocumentRoot matches your Catalyst root, and that you |
369 | are not using any custom MIME types or multiple roots. To enable the Apache |
370 | support, you can set the following option. |
371 | |
372 | MyApp->config->{static}->{use_apache} = 1; |
373 | |
374 | By default this option is disabled because after several benchmarks it |
375 | appears that just serving the file from Catalyst is the better option. On a |
376 | 3K file, Catalyst appears to be around 25% faster, and is 42% faster on a 10K |
377 | file. My benchmarking was done using the following 'siege' command, so other |
378 | benchmarks would be welcome! |
379 | |
380 | siege -u http://server/static/css/10K.css -b -t 1M -c 1 |
381 | |
382 | For best static performance, you should still serve your static files directly |
383 | from Apache by defining a Location block similar to the following: |
384 | |
385 | <Location /static> |
386 | SetHandler default-handler |
387 | </Location> |
2268e329 |
388 | |
389 | =head2 Bypassing other plugins |
b1d96e3e |
390 | |
391 | This plugin checks for a static file in the prepare_action stage. If the |
392 | request is for a static file, it will bypass all remaining prepare_action |
393 | steps. This means that by placing Static::Simple before all other plugins, |
394 | they will not execute when a static file is found. This can be helpful by |
395 | skipping session cookie checks for example. Or, if you want some plugins |
396 | to run even on static files, list them before Static::Simple. |
397 | |
398 | Currently, work done by plugins in any other prepare method will execute |
399 | normally. |
400 | |
2268e329 |
401 | =head2 Debugging information |
b1d96e3e |
402 | |
403 | Enable additional debugging information printed in the Catalyst log. This |
404 | is automatically enabled when running Catalyst in -Debug mode. |
405 | |
406 | MyApp->config->{static}->{debug} = 1; |
407 | |
d6d29b9b |
408 | =head1 SEE ALSO |
409 | |
b1d96e3e |
410 | L<Catalyst>, L<Catalyst::Plugin::Static>, |
411 | L<http://www.iana.org/assignments/media-types/> |
d6d29b9b |
412 | |
413 | =head1 AUTHOR |
414 | |
b1d96e3e |
415 | Andy Grundman, <andy@hybridized.org> |
d6d29b9b |
416 | |
fa43d6b5 |
417 | =head1 CONTRIBUTORS |
418 | |
419 | Marcus Ramberg, <mramberg@cpan.org> |
420 | |
d6d29b9b |
421 | =head1 THANKS |
422 | |
423 | The authors of Catalyst::Plugin::Static: |
424 | |
425 | Sebastian Riedel |
426 | Christian Hansen |
427 | Marcus Ramberg |
428 | |
429 | For the include_path code from Template Toolkit: |
430 | |
431 | Andy Wardley |
432 | |
433 | =head1 COPYRIGHT |
434 | |
435 | This program is free software, you can redistribute it and/or modify it under |
436 | the same terms as Perl itself. |
437 | |
438 | =cut |