1 package Catalyst::Plugin::Static::Simple;
4 use base qw/Class::Accessor::Fast Class::Data::Inheritable/;
10 our $VERSION = '0.08';
12 __PACKAGE__->mk_classdata( qw/_static_mime_types/ );
13 __PACKAGE__->mk_accessors( qw/_static_file
15 _static_debug_message/ );
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.
21 my $path = $c->req->path;
23 # is the URI in a static-defined path?
24 foreach my $dir ( @{ $c->config->{static}->{dirs} } ) {
25 my $re = ( $dir =~ /^qr\//xms ) ? eval $dir : qr/^${dir}/;
27 $c->error( "Error compiling static dir regex '$dir': $@" );
30 if ( $c->_locate_static_file ) {
31 $c->_debug_msg( "from static directory" )
32 if ( $c->config->{static}->{debug} );
35 $c->_debug_msg( "404: file not found: $path" )
36 if ( $c->config->{static}->{debug} );
37 $c->res->status( 404 );
43 # Does the path have an extension?
44 if ( $path =~ /.*\.(\S{1,})$/xms ) {
46 return if ( $c->_locate_static_file );
49 return $c->NEXT::prepare_action(@_);
52 # dispatch takes the file found during prepare_action and serves it
56 return if ( $c->res->status != 200 );
58 if ( $c->_static_file ) {
59 return $c->_serve_static;
62 return $c->NEXT::dispatch(@_);
66 # finalize serves up final header information
70 # display all log messages
71 if ( $c->config->{static}->{debug} && scalar @{$c->_debug_msg} ) {
72 $c->log->debug( "Static::Simple: Serving " .
73 join( " ", @{$c->_debug_msg} )
77 # return DECLINED when under mod_perl
78 if ( $c->config->{static}->{use_apache} && $c->_static_apache_mode ) {
79 my $engine = $c->_static_apache_mode;
81 if ( $engine == 13 ) {
82 return Apache::Constants::DECLINED;
84 elsif ( $engine == 19 ) {
85 return Apache::Const::DECLINED;
87 elsif ( $engine == 20 ) {
88 return Apache2::Const::DECLINED;
92 if ( $c->res->status =~ /^(1\d\d|[23]04)$/xms ) {
93 $c->res->headers->remove_content_headers;
94 return $c->finalize_headers;
97 return $c->NEXT::finalize(@_);
105 $c->config->{static}->{dirs} ||= [];
106 $c->config->{static}->{include_path} ||= [ $c->config->{root} ];
107 $c->config->{static}->{mime_types} ||= {};
108 $c->config->{static}->{use_apache} ||= 0;
109 $c->config->{static}->{debug} ||= $c->debug;
111 # load up a MIME::Types object, only loading types with
112 # at least 1 file extension
113 $c->_static_mime_types( MIME::Types->new( only_complete => 1 ) );
115 # preload the type index hash so it's not built on the first request
116 $c->_static_mime_types->create_type_index;
119 # Search through all included directories for the static file
120 # Based on Template Toolkit INCLUDE_PATH code
121 sub _locate_static_file {
124 my $path = $c->req->path;
126 my @ipaths = @{ $c->config->{static}->{include_path} };
128 my $count = 64; # maximum number of directories to search
130 while ( @ipaths && --$count) {
131 my $dir = shift @ipaths || next;
133 if ( ref $dir eq 'CODE' ) {
134 eval { $dpaths = &$dir( $c ) };
136 $c->log->error( "Static::Simple: include_path error: " . $@ );
138 unshift( @ipaths, @$dpaths );
143 if ( -d $dir && -f $dir . '/' . $path ) {
144 $c->_debug_msg( $dir . "/" . $path )
145 if ( $c->config->{static}->{debug} );
146 return $c->_static_file( $dir . '/' . $path );
157 my $path = $c->req->path;
159 # abort if running under mod_perl
160 # note that we do not use the Apache method if the user has defined
161 # custom MIME types or is using include paths, as Apache would not know
165 if ( $c->config->{static}->{use_apache} ) {
166 # check engine version
167 last APACHE_CHECK unless $c->engine =~ /Apache::MP(\d{2})/xms;
170 # skip if we have user-defined MIME types
171 last APACHE_CHECK if keys %{ $c->config->{static}->{mime_types} };
173 # skip if the file is in a user-defined include path
174 last APACHE_CHECK if $c->_static_file
175 ne $c->config->{root} . '/' . $path;
177 # check that Apache will serve the correct file
178 if ( $c->apache->document_root ne $c->config->{root} ) {
179 $c->log->warn( "Static::Simple: Your Apache DocumentRoot"
180 . " must be set to " . $c->config->{root}
181 . " to use the Apache feature. Yours is"
182 . " currently " . $c->apache->document_root
186 $c->_debug_msg( "DECLINED to Apache" )
187 if ( $c->config->{static}->{debug} );
188 $c->_static_apache_mode( $engine );
194 my $type = $c->_ext_to_type;
196 my $full_path = $c->_static_file;
197 my $stat = stat( $full_path );
199 # the below code all from C::P::Static
200 if ( $c->req->headers->if_modified_since ) {
201 if ( $c->req->headers->if_modified_since == $stat->mtime ) {
202 $c->res->status( 304 ); # Not Modified
203 $c->res->headers->remove_content_headers;
208 my $content = read_file( $full_path );
209 $c->res->headers->content_type( $type );
210 $c->res->headers->content_length( $stat->size );
211 $c->res->headers->last_modified( $stat->mtime );
212 $c->res->output( $content );
216 # looks up the correct MIME type for the current file extension
219 my $path = $c->req->path;
221 if ( $path =~ /.*\.(\S{1,})$/xms ) {
223 my $user_types = $c->config->{static}->{mime_types};
224 my $type = $user_types->{$ext}
225 || $c->_static_mime_types->mimeTypeOf( $ext );
227 $c->_debug_msg( "as $type" )
228 if ( $c->config->{static}->{debug} );
232 $c->_debug_msg( "as text/plain (unknown extension $ext)" )
233 if ( $c->config->{static}->{debug} );
238 $c->_debug_msg( 'as text/plain (no extension)' )
239 if ( $c->config->{static}->{debug} );
245 my ( $c, $msg ) = @_;
247 if ( !defined $c->_static_debug_message ) {
248 $c->_static_debug_message( [] );
252 push @{ $c->_static_debug_message }, $msg;
255 return $c->_static_debug_message;
263 Catalyst::Plugin::Static::Simple - Make serving static pages painless.
268 MyApp->setup( qw/Static::Simple/ );
272 The Static::Simple plugin is designed to make serving static content in your
273 application during development quick and easy, without requiring a single
274 line of code from you.
276 It will detect static files used in your application by looking for file
277 extensions in the URI. By default, you can simply load this plugin and it
278 will immediately begin serving your static files with the correct MIME type.
279 The light-weight MIME::Types module is used to map file extensions to
280 IANA-registered MIME types.
282 Note that actions mapped to paths using periods (.) will still operate
285 You may further tweak the operation by adding configuration options, described
288 =head1 ADVANCED CONFIGURATION
290 Configuration is completely optional and is specified within
291 MyApp->config->{static}. If you use any of these options, the module will
292 probably feel less "simple" to you!
294 =head2 Forcing directories into static mode
296 Define a list of top-level directories beneath your 'root' directory that
297 should always be served in static mode. Regular expressions may be
298 specified using qr//.
300 MyApp->config->{static}->{dirs} = [
305 =head2 Including additional directories (experimental!)
307 You may specify a list of directories in which to search for your static
308 files. The directories will be searched in order and will return the first
309 file found. Note that your root directory is B<not> automatically added to
310 the search path when you specify an include_path. You should use
311 MyApp->config->{root} to add it.
313 MyApp->config->{static}->{include_path} = [
316 MyApp->config->{root}
319 With the above setting, a request for the file /images/logo.jpg will search
320 for the following files, returning the first one found:
322 /path/to/overlay/images/logo.jpg
323 /dynamic/path/images/logo.jpg
324 /your/app/home/root/images/logo.jpg
326 The include path can contain a subroutine reference to dynamically return a
327 list of available directories. This method will receive the $c object as a
328 parameter and should return a reference to a list of directories. Errors can
329 be reported using die(). This method will be called every time a file is
330 requested that appears to be a static file (i.e. it has an extension).
334 sub incpath_generator {
337 if ( $c->session->{customer_dir} ) {
338 return [ $c->session->{customer_dir} ];
340 die "No customer dir defined.";
344 =head2 Custom MIME types
346 To override or add to the default MIME types set by the MIME::Types module,
347 you may enter your own extension to MIME type mapping.
349 MyApp->config->{static}->{mime_types} = {
354 =head2 Apache integration and performance
356 Optionally, when running under mod_perl, Static::Simple can return DECLINED
357 on static files to allow Apache to serve the file. A check is first done to
358 make sure that Apache's DocumentRoot matches your Catalyst root, and that you
359 are not using any custom MIME types or multiple roots. To enable the Apache
360 support, you can set the following option.
362 MyApp->config->{static}->{use_apache} = 1;
364 By default this option is disabled because after several benchmarks it
365 appears that just serving the file from Catalyst is the better option. On a
366 3K file, Catalyst appears to be around 25% faster, and is 42% faster on a 10K
367 file. My benchmarking was done using the following 'siege' command, so other
368 benchmarks would be welcome!
370 siege -u http://server/static/css/10K.css -b -t 1M -c 1
372 For best static performance, you should still serve your static files directly
373 from Apache by defining a Location block similar to the following:
376 SetHandler default-handler
379 =head2 Bypassing other plugins
381 This plugin checks for a static file in the prepare_action stage. If the
382 request is for a static file, it will bypass all remaining prepare_action
383 steps. This means that by placing Static::Simple before all other plugins,
384 they will not execute when a static file is found. This can be helpful by
385 skipping session cookie checks for example. Or, if you want some plugins
386 to run even on static files, list them before Static::Simple.
388 Currently, work done by plugins in any other prepare method will execute
391 =head2 Debugging information
393 Enable additional debugging information printed in the Catalyst log. This
394 is automatically enabled when running Catalyst in -Debug mode.
396 MyApp->config->{static}->{debug} = 1;
400 L<Catalyst>, L<Catalyst::Plugin::Static>,
401 L<http://www.iana.org/assignments/media-types/>
405 Andy Grundman, <andy@hybridized.org>
409 The authors of Catalyst::Plugin::Static:
415 For the include_path code from Template Toolkit:
421 This program is free software, you can redistribute it and/or modify it under
422 the same terms as Perl itself.