package Catalyst;
use strict;
-use base 'Catalyst::Base';
+use base 'Catalyst::Component';
use bytes;
-use UNIVERSAL::require;
use Catalyst::Exception;
use Catalyst::Log;
use Catalyst::Request;
use Catalyst::Request::Upload;
use Catalyst::Response;
use Catalyst::Utils;
+use Catalyst::Controller;
+use Devel::InnerPackage ();
use File::stat;
+use Module::Pluggable::Object ();
use NEXT;
-use Text::SimpleTable;
-use Path::Class;
+use Text::SimpleTable ();
+use Path::Class::Dir ();
+use Path::Class::File ();
use Time::HiRes qw/gettimeofday tv_interval/;
-use URI;
-use Scalar::Util qw/weaken/;
+use URI ();
+use URI::http;
+use URI::https;
+use Scalar::Util qw/weaken blessed/;
+use Tree::Simple qw/use_weak_refs/;
+use Tree::Simple::Visitor::FindByUID;
use attributes;
+use utf8;
+use Carp qw/croak carp shortmess/;
+
+BEGIN { require 5.008001; }
__PACKAGE__->mk_accessors(
- qw/counter request response state action stack namespace/
+ qw/counter request response state action stack namespace stats/
);
-attributes->import( __PACKAGE__, \&namespace, 'lvalue' );
-
sub depth { scalar @{ shift->stack || [] }; }
# Laziness++
our $START = time;
our $RECURSION = 1000;
our $DETACH = "catalyst_detach\n";
-
-require Module::Pluggable::Fast;
-
-# Helper script generation
-our $CATALYST_SCRIPT_GEN = 25;
+our $GO = "catalyst_go\n";
__PACKAGE__->mk_classdata($_)
for qw/components arguments dispatcher engine log dispatcher_class
- engine_class context_class request_class response_class/;
+ engine_class context_class request_class response_class stats_class
+ setup_finished/;
__PACKAGE__->dispatcher_class('Catalyst::Dispatcher');
__PACKAGE__->engine_class('Catalyst::Engine::CGI');
__PACKAGE__->request_class('Catalyst::Request');
__PACKAGE__->response_class('Catalyst::Response');
+__PACKAGE__->stats_class('Catalyst::Stats');
-our $VERSION = '5.62';
+# Remember to update this in Catalyst::Runtime as well!
+
+our $VERSION = '5.71000';
sub import {
my ( $class, @arguments ) = @_;
unless ( $caller->isa('Catalyst') ) {
no strict 'refs';
- push @{"$caller\::ISA"}, $class;
+ push @{"$caller\::ISA"}, $class, 'Catalyst::Controller';
}
$caller->arguments( [@arguments] );
=head1 SYNOPSIS
- # use the helper to start a new application
+See the L<Catalyst::Manual> distribution for comprehensive
+documentation and tutorials.
+
+ # Install Catalyst::Devel for helpers and other development tools
+ # use the helper to create a new application
catalyst.pl MyApp
# add models, views, controllers
- script/myapp_create.pl model Database DBIC dbi:SQLite:/path/to/db
- script/myapp_create.pl view TT TT
+ script/myapp_create.pl model MyDatabase DBIC::Schema create=static dbi:SQLite:/path/to/db
+ script/myapp_create.pl view MyTemplate TT
script/myapp_create.pl controller Search
# built in testserver -- use -r to restart automatically on changes
+ # --help to see all available options
script/myapp_server.pl
# command line testing interface
script/myapp_test.pl /yada
- ### in MyApp.pm
+ ### in lib/MyApp.pm
use Catalyst qw/-Debug/; # include plugins here as well
+ ### In lib/MyApp/Controller/Root.pm (autocreated)
sub foo : Global { # called for /foo, /foo/1, /foo/1/2, etc.
my ( $self, $c, @args ) = @_; # args are qw/1 2/ for /foo/1/2
$c->stash->{template} = 'foo.tt'; # set the template
# lookup something from db -- stash vars are passed to TT
$c->stash->{data} =
- MyApp::Model::Database::Foo->search( { country => $args[0] } );
+ $c->model('Database::Foo')->search( { country => $args[0] } );
if ( $c->req->params->{bar} ) { # access GET or POST parameters
$c->forward( 'bar' ); # process another action
# do something else after forward returns
# called for all actions, from the top-most controller downwards
sub auto : Private {
my ( $self, $c ) = @_;
- if ( !$c->user ) {
+ if ( !$c->user_exists ) { # Catalyst::Plugin::Authentication
$c->res->redirect( '/login' ); # require login
return 0; # abort request and go immediately to end()
}
# called for /foo/bar/baz
sub baz : Local { ... }
- # first MyApp auto is called, then Foo auto, then this
+ # first Root auto is called, then Foo auto, then this
sub auto : Private { ... }
# powerful regular expression paths are also possible
sub details : Regex('^product/(\w+)/details$') {
my ( $self, $c ) = @_;
# extract the (\w+) from the URI
- my $product = $c->req->snippets->[0];
+ my $product = $c->req->captures->[0];
}
See L<Catalyst::Manual::Intro> for additional information.
=head1 DESCRIPTION
-The key concept of Catalyst is DRY (Don't Repeat Yourself).
+Catalyst is a modern framework for making web applications without the
+pain usually associated with this process. This document is a reference
+to the main Catalyst application. If you are a new user, we suggest you
+start with L<Catalyst::Manual::Tutorial> or L<Catalyst::Manual::Intro>.
See L<Catalyst::Manual> for more documentation.
use Catalyst qw/My::Module/;
+If your plugin starts with a name other than C<Catalyst::Plugin::>, you can
+fully qualify the name by using a unary plus:
+
+ use Catalyst qw/
+ My::Module
+ +Fully::Qualified::Plugin::Name
+ /;
+
Special flags like C<-Debug> and C<-Engine> can also be specified as
arguments when Catalyst is loaded:
use Catalyst qw/-Debug My::Module/;
The position of plugins and flags in the chain is important, because
-they are loaded in exactly the order in which they appear.
+they are loaded in the order in which they appear.
The following flags are supported:
=head2 -Debug
-Enables debug output.
+Enables debug output. You can also force this setting from the system
+environment with CATALYST_DEBUG or <MYAPP>_DEBUG. The environment
+settings override the application, with <MYAPP>_DEBUG having the highest
+priority.
=head2 -Engine
Forces Catalyst to use a specific home directory, e.g.:
- use Catalyst qw[-Home=/usr/sri];
+ use Catalyst qw[-Home=/usr/mst];
+
+This can also be done in the shell environment by setting either the
+C<CATALYST_HOME> environment variable or C<MYAPP_HOME>; where C<MYAPP>
+is replaced with the uppercased name of your application, any "::" in
+the name will be replaced with underscores, e.g. MyApp::Web should use
+MYAPP_WEB_HOME. If both variables are set, the MYAPP_HOME one will be used.
=head2 -Log
Specifies log level.
+=head2 -Stats
+
+Enables statistics collection and reporting. You can also force this setting
+from the system environment with CATALYST_STATS or <MYAPP>_STATS. The
+environment settings override the application, with <MYAPP>_STATS having the
+highest priority.
+
+e.g.
+
+ use Catalyst qw/-Stats=1/
+
=head1 METHODS
-=head2 Information about the current request
+=head2 INFORMATION ABOUT THE CURRENT REQUEST
=head2 $c->action
=head2 $c->namespace
-Returns the namespace of the current action, i.e., the uri prefix
+Returns the namespace of the current action, i.e., the URI prefix
corresponding to the controller of the current action. For example:
# in Controller::Foo::Bar
=head2 $c->req
-Returns the current L<Catalyst::Request> object. See
-L<Catalyst::Request>.
+Returns the current L<Catalyst::Request> object, giving access to
+information about the current client request (including parameters,
+cookies, HTTP headers, etc.). See L<Catalyst::Request>.
-=head2 Processing and response to the current request
+=head2 REQUEST FLOW HANDLING
=head2 $c->forward( $action [, \@arguments ] )
=head2 $c->forward( $class, $method, [, \@arguments ] )
-Forwards processing to a private action. If you give a class name but no
-method, C<process()> is called. You may also optionally pass arguments
-in an arrayref. The action will receive the arguments in C<@_> and
-C<$c-E<gt>req-E<gt>args>. Upon returning from the function,
-C<$c-E<gt>req-E<gt>args> will be restored to the previous values.
+Forwards processing to another action, by its private name. If you give a
+class name but no method, C<process()> is called. You may also optionally
+pass arguments in an arrayref. The action will receive the arguments in
+C<@_> and C<< $c->req->args >>. Upon returning from the function,
+C<< $c->req->args >> will be restored to the previous values.
- $c->forward('/foo');
+Any data C<return>ed from the action forwarded to, will be returned by the
+call to forward.
+
+ my $foodata = $c->forward('/foo');
$c->forward('index');
- $c->forward(qw/MyApp::Model::CDBI::Foo do_stuff/);
+ $c->forward(qw/MyApp::Model::DBIC::Foo do_stuff/);
$c->forward('MyApp::View::TT');
+Note that forward implies an C<<eval { }>> around the call (actually
+C<execute> does), thus de-fatalizing all 'dies' within the called
+action. If you want C<die> to propagate you need to do something like:
+
+ $c->forward('foo');
+ die $c->error if $c->error;
+
+Or make sure to always return true values from your actions and write
+your code like this:
+
+ $c->forward('foo') || return;
+
=cut
sub forward { my $c = shift; $c->dispatcher->forward( $c, @_ ) }
=head2 $c->detach( $class, $method, [, \@arguments ] )
-The same as C<forward>, but doesn't return.
+=head2 $c->detach()
+
+The same as C<forward>, but doesn't return to the previous action when
+processing is finished.
+
+When called with no arguments it escapes the processing chain entirely.
=cut
sub detach { my $c = shift; $c->dispatcher->detach( $c, @_ ) }
-=head2 $c->error
+=head2 $c->visit( $action [, \@arguments ] )
-=head2 $c->error($error, ...)
+=head2 $c->visit( $class, $method, [, \@arguments ] )
-=head2 $c->error($arrayref)
+Almost the same as C<forward>, but does a full dispatch, instead of just
+calling the new C<$action> / C<$class-E<gt>$method>. This means that C<begin>,
+C<auto> and the method you go to are called, just like a new request.
-Returns an arrayref containing error messages. If Catalyst encounters an
-error while processing a request, it stores the error in $c->error. This
-method should not be used to store non-fatal error messages.
+In addition both C<< $c->action >> and C<< $c->namespace >> are localized.
+This means, for example, that $c->action methods such as C<name>, C<class> and
+C<reverse> return information for the visited action when they are invoked
+within the visited action. This is different from the behavior of C<forward>
+which continues to use the $c->action object from the caller action even when
+invoked from the callee.
- my @error = @{ $c->error };
+C<$c-E<gt>stash> is kept unchanged.
-Add a new error.
+In effect, C<visit> allows you to "wrap" another action, just as it
+would have been called by dispatching from a URL, while the analogous
+C<go> allows you to transfer control to another action as if it had
+been reached directly from a URL.
- $c->error('Something bad happened');
+=cut
-Clear errors. You probably don't want to clear the errors unless you are
-implementing a custom error screen.
+sub visit { my $c = shift; $c->dispatcher->visit( $c, @_ ) }
- $c->error(0);
+=head2 $c->go( $action [, \@arguments ] )
+
+=head2 $c->go( $class, $method, [, \@arguments ] )
+
+Almost the same as C<detach>, but does a full dispatch like C<visit>,
+instead of just calling the new C<$action> /
+C<$class-E<gt>$method>. This means that C<begin>, C<auto> and the
+method you visit are called, just like a new request.
+
+C<$c-E<gt>stash> is kept unchanged.
=cut
-sub error {
- my $c = shift;
- if ( $_[0] ) {
- my $error = ref $_[0] eq 'ARRAY' ? $_[0] : [@_];
- push @{ $c->{error} }, @$error;
- }
- elsif ( defined $_[0] ) { $c->{error} = undef }
- return $c->{error} || [];
-}
+sub go { my $c = shift; $c->dispatcher->go( $c, @_ ) }
=head2 $c->response
=head2 $c->res
-Returns the current L<Catalyst::Response> object.
+Returns the current L<Catalyst::Response> object, see there for details.
=head2 $c->stash
it between components during a request. You can also set hash keys by
passing arguments. The stash is automatically sent to the view. The
stash is cleared at the end of a request; it cannot be used for
-persistent storage.
+persistent storage (for this you must use a session; see
+L<Catalyst::Plugin::Session> for a complete system integrated with
+Catalyst).
$c->stash->{foo} = $bar;
$c->stash( { moose => 'majestic', qux => 0 } );
$c->stash( bar => 1, gorch => 2 ); # equivalent to passing a hashref
# stash is automatically passed to the view for use in a template
- $c->forward( 'MyApp::V::TT' );
+ $c->forward( 'MyApp::View::TT' );
=cut
my $c = shift;
if (@_) {
my $stash = @_ > 1 ? {@_} : $_[0];
- while ( my ( $key, $val ) = each %$stash ) {
- $c->{stash}->{$key} = $val;
+ croak('stash takes a hash or hashref') unless ref $stash;
+ foreach my $key ( keys %$stash ) {
+ $c->{stash}->{$key} = $stash->{$key};
}
}
return $c->{stash};
}
+=head2 $c->error
+
+=head2 $c->error($error, ...)
+
+=head2 $c->error($arrayref)
+
+Returns an arrayref containing error messages. If Catalyst encounters an
+error while processing a request, it stores the error in $c->error. This
+method should only be used to store fatal error messages.
+
+ my @error = @{ $c->error };
+
+Add a new error.
+
+ $c->error('Something bad happened');
+
+=cut
+
+sub error {
+ my $c = shift;
+ if ( $_[0] ) {
+ my $error = ref $_[0] eq 'ARRAY' ? $_[0] : [@_];
+ croak @$error unless ref $c;
+ push @{ $c->{error} }, @$error;
+ }
+ elsif ( defined $_[0] ) { $c->{error} = undef }
+ return $c->{error} || [];
+}
+
+
=head2 $c->state
Contains the return value of the last executed action.
-=head2 Component Accessors
+=head2 $c->clear_errors
-=head2 $c->comp($name)
+Clear errors. You probably don't want to clear the errors unless you are
+implementing a custom error screen.
-=head2 $c->component($name)
+This is equivalent to running
-Gets a component object by name. This method is no longer recommended,
-unless you want to get a specific component by full
-class. C<$c-E<gt>controller>, C<$c-E<gt>model>, and C<$c-E<gt>view>
-should be used instead.
+ $c->error(0);
=cut
-sub component {
+sub clear_errors {
my $c = shift;
+ $c->error(0);
+}
- if (@_) {
+# search components given a name and some prefixes
+sub _comp_search_prefixes {
+ my ( $c, $name, @prefixes ) = @_;
+ my $appclass = ref $c || $c;
+ my $filter = "^${appclass}::(" . join( '|', @prefixes ) . ')::';
- my $name = shift;
+ # map the original component name to the sub part that we will search against
+ my %eligible = map { my $n = $_; $n =~ s{^$appclass\::[^:]+::}{}; $_ => $n; }
+ grep { /$filter/ } keys %{ $c->components };
- my $appclass = ref $c || $c;
+ # undef for a name will return all
+ return keys %eligible if !defined $name;
- my @names = (
- $name, "${appclass}::${name}",
- map { "${appclass}::${_}::${name}" }
- qw/Model M Controller C View V/
- );
+ my $query = ref $name ? $name : qr/^$name$/i;
+ my @result = grep { $eligible{$_} =~ m{$query} } keys %eligible;
- foreach my $try (@names) {
+ return map { $c->components->{ $_ } } @result if @result;
- if ( exists $c->components->{$try} ) {
+ # if we were given a regexp to search against, we're done.
+ return if ref $name;
- return $c->components->{$try};
- }
- }
+ # regexp fallback
+ $query = qr/$name/i;
+ @result = map { $c->components->{ $_ } } grep { $eligible{ $_ } =~ m{$query} } keys %eligible;
- foreach my $component ( keys %{ $c->components } ) {
+ # no results? try against full names
+ if( !@result ) {
+ @result = map { $c->components->{ $_ } } grep { m{$query} } keys %eligible;
+ }
- return $c->components->{$component} if $component =~ /$name/i;
+ # don't warn if we didn't find any results, it just might not exist
+ if( @result ) {
+ my $msg = "Used regexp fallback for \$c->model('${name}'), which found '" .
+ (join '", "', @result) . "'. Relying on regexp fallback behavior for " .
+ "component resolution is unreliable and unsafe.";
+ my $short = $result[0];
+ $short =~ s/.*?Model:://;
+ my $shortmess = Carp::shortmess('');
+ if ($shortmess =~ m#Catalyst/Plugin#) {
+ $msg .= " You probably need to set '$short' instead of '${name}' in this " .
+ "plugin's config";
+ } elsif ($shortmess =~ m#Catalyst/lib/(View|Controller)#) {
+ $msg .= " You probably need to set '$short' instead of '${name}' in this " .
+ "component's config";
+ } else {
+ $msg .= " You probably meant \$c->model('$short') instead of \$c->model{'${name}'}, " .
+ "but if you really wanted to search, pass in a regexp as the argument " .
+ "like so: \$c->model(qr/${name}/)";
}
-
+ $c->log->warn( "${msg}$shortmess" );
}
- return sort keys %{ $c->components };
+ return @result;
+}
+
+# Find possible names for a prefix
+sub _comp_names {
+ my ( $c, @prefixes ) = @_;
+ my $appclass = ref $c || $c;
+
+ my $filter = "^${appclass}::(" . join( '|', @prefixes ) . ')::';
+
+ my @names = map { s{$filter}{}; $_; } $c->_comp_search_prefixes( undef, @prefixes );
+ return @names;
+}
+
+# Filter a component before returning by calling ACCEPT_CONTEXT if available
+sub _filter_component {
+ my ( $c, $comp, @args ) = @_;
+
+ if ( eval { $comp->can('ACCEPT_CONTEXT'); } ) {
+ return $comp->ACCEPT_CONTEXT( $c, @args );
+ }
+
+ return $comp;
}
+=head2 COMPONENT ACCESSORS
+
=head2 $c->controller($name)
Gets a L<Catalyst::Controller> instance by name.
$c->controller('Foo')->do_stuff;
+If the name is omitted, will return the controller for the dispatched
+action.
+
+If you want to search for controllers, pass in a regexp as the argument.
+
+ # find all controllers that start with Foo
+ my @foo_controllers = $c->controller(qr{^Foo});
+
+
=cut
sub controller {
- my ( $c, $name ) = @_;
- my $controller = $c->comp("Controller::$name");
- return $controller if defined $controller;
- return $c->comp("C::$name");
+ my ( $c, $name, @args ) = @_;
+
+ if( $name ) {
+ my @result = $c->_comp_search_prefixes( $name, qw/Controller C/ );
+ return map { $c->_filter_component( $_, @args ) } @result if ref $name;
+ return $c->_filter_component( $result[ 0 ], @args );
+ }
+
+ return $c->component( $c->action->class );
}
=head2 $c->model($name)
$c->model('Foo')->do_stuff;
+Any extra arguments are directly passed to ACCEPT_CONTEXT.
+
+If the name is omitted, it will look for
+ - a model object in $c->stash->{current_model_instance}, then
+ - a model name in $c->stash->{current_model}, then
+ - a config setting 'default_model', or
+ - check if there is only one model, and return it if that's the case.
+
+If you want to search for models, pass in a regexp as the argument.
+
+ # find all models that start with Foo
+ my @foo_models = $c->model(qr{^Foo});
+
=cut
sub model {
- my ( $c, $name ) = @_;
- my $model = $c->comp("Model::$name");
- return $model if defined $model;
- return $c->comp("M::$name");
+ my ( $c, $name, @args ) = @_;
+
+ if( $name ) {
+ my @result = $c->_comp_search_prefixes( $name, qw/Model M/ );
+ return map { $c->_filter_component( $_, @args ) } @result if ref $name;
+ return $c->_filter_component( $result[ 0 ], @args );
+ }
+
+ if (ref $c) {
+ return $c->stash->{current_model_instance}
+ if $c->stash->{current_model_instance};
+ return $c->model( $c->stash->{current_model} )
+ if $c->stash->{current_model};
+ }
+ return $c->model( $c->config->{default_model} )
+ if $c->config->{default_model};
+
+ my( $comp, $rest ) = $c->_comp_search_prefixes( undef, qw/Model M/);
+
+ if( $rest ) {
+ $c->log->warn( Carp::shortmess('Calling $c->model() will return a random model unless you specify one of:') );
+ $c->log->warn( '* $c->config->{default_model} # the name of the default model to use' );
+ $c->log->warn( '* $c->stash->{current_model} # the name of the model to use for this request' );
+ $c->log->warn( '* $c->stash->{current_model_instance} # the instance of the model to use for this request' );
+ $c->log->warn( 'NB: in version 5.80, the "random" behavior will not work at all.' );
+ }
+
+ return $c->_filter_component( $comp );
}
+
=head2 $c->view($name)
Gets a L<Catalyst::View> instance by name.
$c->view('Foo')->do_stuff;
+Any extra arguments are directly passed to ACCEPT_CONTEXT.
+
+If the name is omitted, it will look for
+ - a view object in $c->stash->{current_view_instance}, then
+ - a view name in $c->stash->{current_view}, then
+ - a config setting 'default_view', or
+ - check if there is only one view, and return it if that's the case.
+
+If you want to search for views, pass in a regexp as the argument.
+
+ # find all views that start with Foo
+ my @foo_views = $c->view(qr{^Foo});
+
=cut
sub view {
- my ( $c, $name ) = @_;
- my $view = $c->comp("View::$name");
- return $view if defined $view;
- return $c->comp("V::$name");
+ my ( $c, $name, @args ) = @_;
+
+ if( $name ) {
+ my @result = $c->_comp_search_prefixes( $name, qw/View V/ );
+ return map { $c->_filter_component( $_, @args ) } @result if ref $name;
+ return $c->_filter_component( $result[ 0 ], @args );
+ }
+
+ if (ref $c) {
+ return $c->stash->{current_view_instance}
+ if $c->stash->{current_view_instance};
+ return $c->view( $c->stash->{current_view} )
+ if $c->stash->{current_view};
+ }
+ return $c->view( $c->config->{default_view} )
+ if $c->config->{default_view};
+
+ my( $comp, $rest ) = $c->_comp_search_prefixes( undef, qw/View V/);
+
+ if( $rest ) {
+ $c->log->warn( 'Calling $c->view() will return a random view unless you specify one of:' );
+ $c->log->warn( '* $c->config->{default_view} # the name of the default view to use' );
+ $c->log->warn( '* $c->stash->{current_view} # the name of the view to use for this request' );
+ $c->log->warn( '* $c->stash->{current_view_instance} # the instance of the view to use for this request' );
+ $c->log->warn( 'NB: in version 5.80, the "random" behavior will not work at all.' );
+ }
+
+ return $c->_filter_component( $comp );
+}
+
+=head2 $c->controllers
+
+Returns the available names which can be passed to $c->controller
+
+=cut
+
+sub controllers {
+ my ( $c ) = @_;
+ return $c->_comp_names(qw/Controller C/);
+}
+
+=head2 $c->models
+
+Returns the available names which can be passed to $c->model
+
+=cut
+
+sub models {
+ my ( $c ) = @_;
+ return $c->_comp_names(qw/Model M/);
+}
+
+
+=head2 $c->views
+
+Returns the available names which can be passed to $c->view
+
+=cut
+
+sub views {
+ my ( $c ) = @_;
+ return $c->_comp_names(qw/View V/);
+}
+
+=head2 $c->comp($name)
+
+=head2 $c->component($name)
+
+Gets a component object by name. This method is not recommended,
+unless you want to get a specific component by full
+class. C<< $c->controller >>, C<< $c->model >>, and C<< $c->view >>
+should be used instead.
+
+If C<$name> is a regexp, a list of components matched against the full
+component name will be returned.
+
+=cut
+
+sub component {
+ my ( $c, $name, @args ) = @_;
+
+ if( $name ) {
+ my $comps = $c->components;
+
+ if( !ref $name ) {
+ # is it the exact name?
+ return $c->_filter_component( $comps->{ $name }, @args )
+ if exists $comps->{ $name };
+
+ # perhaps we just omitted "MyApp"?
+ my $composed = ( ref $c || $c ) . "::${name}";
+ return $c->_filter_component( $comps->{ $composed }, @args )
+ if exists $comps->{ $composed };
+
+ # search all of the models, views and controllers
+ my( $comp ) = $c->_comp_search_prefixes( $name, qw/Model M Controller C View V/ );
+ return $c->_filter_component( $comp, @args ) if $comp;
+ }
+
+ # This is here so $c->comp( '::M::' ) works
+ my $query = ref $name ? $name : qr{$name}i;
+
+ my @result = grep { m{$query} } keys %{ $c->components };
+ return map { $c->_filter_component( $_, @args ) } @result if ref $name;
+
+ if( $result[ 0 ] ) {
+ $c->log->warn( Carp::shortmess(qq(Found results for "${name}" using regexp fallback)) );
+ $c->log->warn( 'Relying on the regexp fallback behavior for component resolution' );
+ $c->log->warn( 'is unreliable and unsafe. You have been warned' );
+ return $c->_filter_component( $result[ 0 ], @args );
+ }
+
+ # I would expect to return an empty list here, but that breaks back-compat
+ }
+
+ # fallback
+ return sort keys %{ $c->components };
}
-=head2 Class data and helper classes
+=head2 CLASS DATA AND HELPER CLASSES
=head2 $c->config
Returns or takes a hashref containing the application's configuration.
- __PACKAGE__->config({ db => 'dsn:SQLite:foo.db' });
+ __PACKAGE__->config( { db => 'dsn:SQLite:foo.db' } );
+
+You can also use a C<YAML>, C<XML> or C<Config::General> config file
+like myapp.yml in your applications home directory. See
+L<Catalyst::Plugin::ConfigLoader>.
+
+ ---
+ db: dsn:SQLite:foo.db
+
+
+=cut
+
+sub config {
+ my $c = shift;
+
+ $c->log->warn("Setting config after setup has been run is not a good idea.")
+ if ( @_ and $c->setup_finished );
+
+ $c->NEXT::config(@_);
+}
+
+=head2 $c->log
+
+Returns the logging object instance. Unless it is already set, Catalyst
+sets this up with a L<Catalyst::Log> object. To use your own log class,
+set the logger with the C<< __PACKAGE__->log >> method prior to calling
+C<< __PACKAGE__->setup >>.
+
+ __PACKAGE__->log( MyLogger->new );
+ __PACKAGE__->setup;
+
+And later:
+
+ $c->log->info( 'Now logging with my own logger!' );
+
+Your log class should implement the methods described in
+L<Catalyst::Log>.
+
=head2 $c->debug
Overload to enable debug messages (same as -Debug option).
+Note that this is a static method, not an accessor and should be overloaded
+by declaring "sub debug { 1 }" in your MyApp.pm, not by calling $c->debug(1).
+
=cut
sub debug { 0 }
Returns the engine instance. Stringifies to the class name. See
L<Catalyst::Engine>.
-=head2 $c->log
-
-Returns the logging object instance. Unless it is already set, Catalyst
-sets this up with a L<Catalyst::Log> object. To use your own log class:
-
- $c->log( MyLogger->new );
- $c->log->info( 'Now logging with my own logger!' );
-Your log class should implement the methods described in the
-L<Catalyst::Log> man page.
-
-=cut
-
-=head2 Utility methods
+=head2 UTILITY METHODS
=head2 $c->path_to(@path)
-Merges C<@path> with C<$c-E<gt>config-E<gt>{home}> and returns a
-L<Path::Class> object.
+Merges C<@path> with C<< $c->config->{home} >> and returns a
+L<Path::Class::Dir> object.
For example:
sub path_to {
my ( $c, @path ) = @_;
- my $path = dir( $c->config->{home}, @path );
+ my $path = Path::Class::Dir->new( $c->config->{home}, @path );
if ( -d $path ) { return $path }
- else { return file( $c->config->{home}, @path ) }
+ else { return Path::Class::File->new( $c->config->{home}, @path ) }
}
=head2 $c->plugin( $name, $class, @args )
sub plugin {
my ( $class, $name, $plugin, @args ) = @_;
- $plugin->require;
-
- if ( my $error = $UNIVERSAL::require::ERROR ) {
- Catalyst::Exception->throw(
- message => qq/Couldn't load instant plugin "$plugin", "$error"/ );
- }
+ $class->_register_plugin( $plugin, 1 );
eval { $plugin->import };
$class->mk_classdata($name);
sub setup {
my ( $class, @arguments ) = @_;
+ $class->log->warn("Running setup twice is not a good idea.")
+ if ( $class->setup_finished );
+
unless ( $class->isa('Catalyst') ) {
Catalyst::Exception->throw(
}
}
+ $class->setup_home( delete $flags->{home} );
+
$class->setup_log( delete $flags->{log} );
$class->setup_plugins( delete $flags->{plugins} );
$class->setup_dispatcher( delete $flags->{dispatcher} );
$class->setup_engine( delete $flags->{engine} );
- $class->setup_home( delete $flags->{home} );
+ $class->setup_stats( delete $flags->{stats} );
for my $flag ( sort keys %{$flags} ) {
}
}
- $class->log->warn(
- <<"EOF") if ( $ENV{CATALYST_SCRIPT_GEN} && ( $ENV{CATALYST_SCRIPT_GEN} < $Catalyst::CATALYST_SCRIPT_GEN ) );
+ eval { require Catalyst::Devel; };
+ if( !$@ && $ENV{CATALYST_SCRIPT_GEN} && ( $ENV{CATALYST_SCRIPT_GEN} < $Catalyst::Devel::CATALYST_SCRIPT_GEN ) ) {
+ $class->log->warn(<<"EOF");
You are running an old script!
Please update by running (this will overwrite existing files):
or (this will not overwrite existing files):
catalyst.pl -scripts $class
-EOF
+EOF
+ }
+
if ( $class->debug ) {
-
- my @plugins = ();
-
- {
- no strict 'refs';
- @plugins = grep { /^Catalyst::Plugin/ } @{"$class\::ISA"};
- }
+ my @plugins = map { "$_ " . ( $_->VERSION || '' ) } $class->registered_plugins;
if (@plugins) {
- my $t = Text::SimpleTable->new(76);
+ my $column_width = Catalyst::Utils::term_width() - 6;
+ my $t = Text::SimpleTable->new($column_width);
$t->row($_) for @plugins;
- $class->log->debug( "Loaded plugins:\n" . $t->draw );
+ $class->log->debug( "Loaded plugins:\n" . $t->draw . "\n" );
}
my $dispatcher = $class->dispatcher;
$class->setup_components;
if ( $class->debug ) {
- my $t = Text::SimpleTable->new( [ 65, 'Class' ], [ 8, 'Type' ] );
+ my $column_width = Catalyst::Utils::term_width() - 8 - 9;
+ my $t = Text::SimpleTable->new( [ $column_width, 'Class' ], [ 8, 'Type' ] );
for my $comp ( sort keys %{ $class->components } ) {
my $type = ref $class->components->{$comp} ? 'instance' : 'class';
$t->row( $comp, $type );
}
- $class->log->debug( "Loaded components:\n" . $t->draw )
+ $class->log->debug( "Loaded components:\n" . $t->draw . "\n" )
if ( keys %{ $class->components } );
}
$class->log->info("$name powered by Catalyst $Catalyst::VERSION");
}
$class->log->_flush() if $class->log->can('_flush');
+
+ $class->setup_finished(1);
}
-=head2 $c->uri_for( $path, [ @args ] )
+=head2 $c->uri_for( $action, \@captures?, @args?, \%query_values? )
+
+=head2 $c->uri_for( $path, @args?, \%query_values? )
+
+=over
+
+=item $action
+
+A Catalyst::Action object representing the Catalyst action you want to
+create a URI for. To get one for an action in the current controller,
+use C<< $c->action('someactionname') >>. To get one from different
+controller, fetch the controller using C<< $c->controller() >>, then
+call C<action_for> on it.
+
+This method must be used to create URIs for
+L<Catalyst::DispatchType::Chained> actions.
+
+=item $path
+
+The actual path you wish to create a URI for, this is a public path,
+not a private action path.
+
+=item \@captures
+
+If provided, this argument is used to insert values into a I<Chained>
+action in the parts where the definitions contain I<CaptureArgs>. If
+not needed, leave out this argument.
+
+=item @args
+
+If provided, this is used as a list of further path sections to append
+to the URI. In a I<Chained> action these are the equivalent to the
+endpoint L<Args>.
+
+=item \%query_values
-Merges path with C<$c-E<gt>request-E<gt>base> for absolute uri's and
-with C<$c-E<gt>namespace> for relative uri's, then returns a
-normalized L<URI> object. If any args are passed, they are added at the
-end of the path.
+If provided, the query_values hashref is used to add query parameters
+to the URI, with the keys as the names, and the values as the values.
+
+=back
+
+Returns a L<URI> object.
+
+ ## Ex 1: a path with args and a query parameter
+ $c->uri_for('user/list', 'short', { page => 2});
+ ## -> ($c->req->base is 'http://localhost:3000/'
+ URI->new('http://localhost:3000/user/list/short?page=2)
+
+ ## Ex 2: a chained view action that captures the user id
+ ## In controller:
+ sub user : Chained('/'): PathPart('myuser'): CaptureArgs(1) {}
+ sub viewuser : Chained('user'): PathPart('view') {}
+
+ ## In uri creating code:
+ my $uaction = $c->controller('Users')->action_for('viewuser');
+ $c->uri_for($uaction, [ 42 ]);
+ ## outputs:
+ URI->new('http://localhost:3000/myuser/42/view')
+
+Creates a URI object using C<< $c->request->base >> and a path. If an
+Action object is given instead of a path, the path is constructed
+using C<< $c->dispatcher->uri_for_action >> and passing it the
+@captures array, if supplied.
+
+If any query parameters are passed they are added to the end of the
+URI in the usual way.
+
+Note that uri_for is destructive to the passed query values hashref.
+Subsequent calls with the same hashref may have unintended results.
=cut
sub uri_for {
my ( $c, $path, @args ) = @_;
- my $base = $c->request->base->clone;
- my $basepath = $base->path;
- $basepath =~ s/\/$//;
- $basepath .= '/';
- my $namespace = $c->namespace;
-
- # massage namespace, empty if absolute path
- $namespace =~ s/^\///;
- $namespace .= '/' if $namespace;
- $path ||= '';
- $namespace = '' if $path =~ /^\//;
- $path =~ s/^\///;
+ if ( Scalar::Util::blessed($path) ) { # action object
+ my $captures = ( scalar @args && ref $args[0] eq 'ARRAY'
+ ? shift(@args)
+ : [] );
+ $path = $c->dispatcher->uri_for_action($path, $captures);
+ return undef unless defined($path);
+ $path = '/' if $path eq '';
+ }
+
+ undef($path) if (defined $path && $path eq '');
+
+ my $params =
+ ( scalar @args && ref $args[$#args] eq 'HASH' ? pop @args : {} );
+
+ carp "uri_for called with undef argument" if grep { ! defined $_ } @args;
+ s/([^$URI::uric])/$URI::Escape::escapes{$1}/go for @args;
+
+ unshift(@args, $path);
+
+ unless (defined $path && $path =~ s!^/!!) { # in-place strip
+ my $namespace = $c->namespace;
+ if (defined $path) { # cheesy hack to handle path '../foo'
+ $namespace =~ s{(?:^|/)[^/]+$}{} while $args[0] =~ s{^\.\./}{};
+ }
+ unshift(@args, $namespace || '');
+ }
+
# join args with '/', or a blank string
- my $args = ( scalar @args ? '/' . join( '/', @args ) : '' );
- $args =~ s/^\/// unless $path;
- my $res =
- URI->new_abs( URI->new_abs( "$path$args", "$basepath$namespace" ), $base )
- ->canonical;
+ my $args = join('/', grep { defined($_) } @args);
+ $args =~ s/\?/%3F/g; # STUPID STUPID SPECIAL CASE
+ $args =~ s!^/!!;
+ my $base = $c->req->base;
+ my $class = ref($base);
+ $base =~ s{(?<!/)$}{/};
+
+ my $query = '';
+
+ if (my @keys = keys %$params) {
+ # somewhat lifted from URI::_query's query_form
+ $query = '?'.join('&', map {
+ my $val = $params->{$_};
+ s/([;\/?:@&=+,\$\[\]%])/$URI::Escape::escapes{$1}/go;
+ s/ /+/g;
+ my $key = $_;
+ $val = '' unless defined $val;
+ (map {
+ $_ = "$_";
+ utf8::encode( $_ ) if utf8::is_utf8($_);
+ # using the URI::Escape pattern here so utf8 chars survive
+ s/([^A-Za-z0-9\-_.!~*'() ])/$URI::Escape::escapes{$1}/go;
+ s/ /+/g;
+ "${key}=$_"; } ( ref $val eq 'ARRAY' ? @$val : $val ));
+ } @keys);
+ }
+
+ my $res = bless(\"${base}${args}${query}", $class);
$res;
}
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
- <meta http-equiv="Content-Language" content="en" />
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <meta http-equiv="Content-Language" content="en" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>$name on Catalyst $VERSION</title>
<style type="text/css">
body {
text-align: left;
background-color: #ccc;
border: 1px solid #aaa;
- -moz-border-radius: 10px;
}
p, h1, h2 {
margin-left: 20px;
margin: 10px;
background-color: #fff;
border: 1px solid #aaa;
- -moz-border-radius: 10px;
}
h1 {
font-size: 0.9em;
<p>
<img src="$logo" alt="Catalyst Logo" />
</p>
- <p>Welcome to the wonderful world of Catalyst.
+ <p>Welcome to the world of Catalyst.
This <a href="http://en.wikipedia.org/wiki/MVC">MVC</a>
framework will make web development something you had
- never expected it to be: Fun, rewarding and quick.</p>
+ never expected it to be: Fun, rewarding, and quick.</p>
<h2>What to do now?</h2>
<p>That really depends on what <b>you</b> want to do.
We do, however, provide you with a few starting points.</p>
<p>If you want to jump right into web development with Catalyst
- you might want to check out the documentation.</p>
- <pre><code>perldoc <a href="http://cpansearch.perl.org/dist/Catalyst/lib/Catalyst/Manual/Intro.pod">Catalyst::Manual::Intro</a>
-perldoc <a href="http://cpansearch.perl.org/dist/Catalyst/lib/Catalyst/Manual.pod">Catalyst::Manual</a></code></pre>
+ you might want to start with a tutorial.</p>
+<pre>perldoc <a href="http://cpansearch.perl.org/dist/Catalyst-Manual/lib/Catalyst/Manual/Tutorial.pod">Catalyst::Manual::Tutorial</a></code>
+</pre>
+<p>Afterwards you can go on to check out a more complete look at our features.</p>
+<pre>
+<code>perldoc <a href="http://cpansearch.perl.org/dist/Catalyst-Manual/lib/Catalyst/Manual/Intro.pod">Catalyst::Manual::Intro</a>
+<!-- Something else should go here, but the Catalyst::Manual link seems unhelpful -->
+</code></pre>
<h2>What to do next?</h2>
<p>Next it's time to write an actual application. Use the
helper scripts to generate <a href="http://cpansearch.perl.org/search?query=Catalyst%3A%3AController%3A%3A&mode=all">controllers</a>,
- <a href="http://cpansearch.perl.org/search?query=Catalyst%3A%3AModel%3A%3A&mode=all">models</a> and
- <a href="http://cpansearch.perl.org/search?query=Catalyst%3A%3AView%3A%3A&mode=all">views</a>,
+ <a href="http://cpansearch.perl.org/search?query=Catalyst%3A%3AModel%3A%3A&mode=all">models</a>, and
+ <a href="http://cpansearch.perl.org/search?query=Catalyst%3A%3AView%3A%3A&mode=all">views</a>;
they can save you a lot of work.</p>
<pre><code>script/${prefix}_create.pl -help</code></pre>
<p>Also, be sure to check out the vast and growing
- collection of <a href="http://cpansearch.perl.org/search?query=Catalyst%3A%3APlugin%3A%3A&mode=all">plugins for Catalyst on CPAN</a>,
+ collection of <a href="http://cpansearch.perl.org/search?query=Catalyst%3A%3APlugin%3A%3A&mode=all">plugins for Catalyst on CPAN</a>;
you are likely to find what you need there.
</p>
sub dump_these {
my $c = shift;
- [ Request => $c->req ], [ Response => $c->res ], [ Stash => $c->stash ],;
+ [ Request => $c->req ],
+ [ Response => $c->res ],
+ [ Stash => $c->stash ],
+ [ Config => $c->config ];
}
=head2 $c->engine_class
sub execute {
my ( $c, $class, $code ) = @_;
- $class = $c->components->{$class} || $class;
+ $class = $c->component($class) || $class;
$c->state(0);
- my $callsub =
- ( caller(0) )[0]->isa('Catalyst::Action')
- ? ( caller(2) )[3]
- : ( caller(1) )[3];
-
- my $action = '';
- if ( $c->debug ) {
- $action = "$code";
- $action = "/$action" unless $action =~ /\-\>/;
- $c->counter->{"$code"}++;
+ if ( $c->depth >= $RECURSION ) {
+ my $action = "$code";
+ $action = "/$action" unless $action =~ /->/;
+ my $error = qq/Deep recursion detected calling "$action"/;
+ $c->log->error($error);
+ $c->error($error);
+ $c->state(0);
+ return $c->state;
+ }
- if ( $c->counter->{"$code"} > $RECURSION ) {
- my $error = qq/Deep recursion detected in "$action"/;
- $c->log->error($error);
- $c->error($error);
- $c->state(0);
- return $c->state;
- }
+ my $stats_info = $c->_stats_start_execute( $code ) if $c->use_stats;
- $action = "-> $action" if $callsub =~ /forward$/;
- }
push( @{ $c->stack }, $code );
- my $elapsed = 0;
- my $start = 0;
- $start = [gettimeofday] if $c->debug;
+
eval { $c->state( &$code( $class, $c, @{ $c->req->args } ) || 0 ) };
- $elapsed = tv_interval($start) if $c->debug;
- if ( $c->debug ) {
- unless ( ( $code->name =~ /^_.*/ )
- && ( !$c->config->{show_internal_actions} ) )
- {
- push @{ $c->{stats} }, [ $action, sprintf( '%fs', $elapsed ) ];
- }
- }
- pop( @{ $c->stack } );
+ $c->_stats_finish_execute( $stats_info ) if $c->use_stats and $stats_info;
+
+ my $last = pop( @{ $c->stack } );
if ( my $error = $@ ) {
-
- if ( $error eq $DETACH ) { die $DETACH if $c->depth > 1 }
+ if ( !ref($error) and $error eq $DETACH ) {
+ die $DETACH if($c->depth > 1);
+ }
+ elsif ( !ref($error) and $error eq $GO ) {
+ die $GO if($c->depth > 0);
+ }
else {
unless ( ref $error ) {
+ no warnings 'uninitialized';
chomp $error;
- $error = qq/Caught exception "$error"/;
+ my $class = $last->class;
+ my $name = $last->name;
+ $error = qq/Caught exception in $class->$name "$error"/;
}
$c->error($error);
$c->state(0);
return $c->state;
}
+sub _stats_start_execute {
+ my ( $c, $code ) = @_;
+
+ return if ( ( $code->name =~ /^_.*/ )
+ && ( !$c->config->{show_internal_actions} ) );
+
+ $c->counter->{"$code"}++;
+
+ my $action = "$code";
+ $action = "/$action" unless $action =~ /->/;
+
+ # determine if the call was the result of a forward
+ # this is done by walking up the call stack and looking for a calling
+ # sub of Catalyst::forward before the eval
+ my $callsub = q{};
+ for my $index ( 2 .. 11 ) {
+ last
+ if ( ( caller($index) )[0] eq 'Catalyst'
+ && ( caller($index) )[3] eq '(eval)' );
+
+ if ( ( caller($index) )[3] =~ /forward$/ ) {
+ $callsub = ( caller($index) )[3];
+ $action = "-> $action";
+ last;
+ }
+ }
+
+ my $uid = "$code" . $c->counter->{"$code"};
+
+ # is this a root-level call or a forwarded call?
+ if ( $callsub =~ /forward$/ ) {
+
+ # forward, locate the caller
+ if ( my $parent = $c->stack->[-1] ) {
+ $c->stats->profile(
+ begin => $action,
+ parent => "$parent" . $c->counter->{"$parent"},
+ uid => $uid,
+ );
+ }
+ else {
+
+ # forward with no caller may come from a plugin
+ $c->stats->profile(
+ begin => $action,
+ uid => $uid,
+ );
+ }
+ }
+ else {
+
+ # root-level call
+ $c->stats->profile(
+ begin => $action,
+ uid => $uid,
+ );
+ }
+ return $action;
+
+}
+
+sub _stats_finish_execute {
+ my ( $c, $info ) = @_;
+ $c->stats->profile( end => $info );
+}
+
+=head2 $c->_localize_fields( sub { }, \%keys );
+
+=cut
+
+sub _localize_fields {
+ my ( $c, $localized, $code ) = ( @_ );
+
+ my $request = delete $localized->{request} || {};
+ my $response = delete $localized->{response} || {};
+
+ local @{ $c }{ keys %$localized } = values %$localized;
+ local @{ $c->request }{ keys %$request } = values %$request;
+ local @{ $c->response }{ keys %$response } = values %$response;
+
+ $code->();
+}
+
=head2 $c->finalize
Finalizes the request.
$c->log->error($error);
}
- $c->finalize_uploads;
-
- # Error
- if ( $#{ $c->error } >= 0 ) {
- $c->finalize_error;
+ # Allow engine to handle finalize flow (for POE)
+ if ( $c->engine->can('finalize') ) {
+ $c->engine->finalize($c);
}
+ else {
- $c->finalize_headers;
+ $c->finalize_uploads;
- # HEAD request
- if ( $c->request->method eq 'HEAD' ) {
- $c->response->body('');
- }
+ # Error
+ if ( $#{ $c->error } >= 0 ) {
+ $c->finalize_error;
+ }
- $c->finalize_body;
+ $c->finalize_headers;
+
+ # HEAD request
+ if ( $c->request->method eq 'HEAD' ) {
+ $c->response->body('');
+ }
+
+ $c->finalize_body;
+ }
+
+ if ($c->use_stats) {
+ my $elapsed = sprintf '%f', $c->stats->elapsed;
+ my $av = $elapsed == 0 ? '??' : sprintf '%.3f', 1 / $elapsed;
+ $c->log->info(
+ "Request took ${elapsed}s ($av/s)\n" . $c->stats->report . "\n" );
+ }
return $c->response->status;
}
if ( my $location = $c->response->redirect ) {
$c->log->debug(qq/Redirecting to "$location"/) if $c->debug;
$c->response->header( Location => $location );
+
+ if ( !$c->response->body ) {
+ # Add a default body if none is already present
+ $c->response->body(
+ qq{<html><body><p>This item has moved <a href="$location">here</a>.</p></body></html>}
+ );
+ }
}
# Content-Length
if ( $c->response->body && !$c->response->content_length ) {
# get the length from a filehandle
- if ( ref $c->response->body && $c->response->body->can('read') ) {
- if ( my $stat = stat $c->response->body ) {
+ if ( blessed( $c->response->body ) && $c->response->body->can('read') )
+ {
+ my $stat = stat $c->response->body;
+ if ( $stat && $stat->size > 0 ) {
$c->response->content_length( $stat->size );
}
else {
}
}
else {
+ # everything should be bytes at this point, but just in case
$c->response->content_length( bytes::length( $c->response->body ) );
}
}
sub get_actions { my $c = shift; $c->dispatcher->get_actions( $c, @_ ) }
-=head2 handle_request( $class, @arguments )
+=head2 $c->handle_request( $class, @arguments )
Called to handle each HTTP request.
# Always expect worst case!
my $status = -1;
eval {
- my @stats = ();
-
- my $handler = sub {
- my $c = $class->prepare(@arguments);
- $c->{stats} = \@stats;
- $c->dispatch;
- return $c->finalize;
- };
-
- if ( $class->debug ) {
- my $start = [gettimeofday];
- $status = &$handler;
- my $elapsed = tv_interval $start;
- $elapsed = sprintf '%f', $elapsed;
- my $av = sprintf '%.3f',
- ( $elapsed == 0 ? '??' : ( 1 / $elapsed ) );
- my $t = Text::SimpleTable->new( [ 64, 'Action' ], [ 9, 'Time' ] );
-
- for my $stat (@stats) { $t->row( $stat->[0], $stat->[1] ) }
- $class->log->info(
- "Request took ${elapsed}s ($av/s)\n" . $t->draw );
+ if ($class->debug) {
+ my $secs = time - $START || 1;
+ my $av = sprintf '%.3f', $COUNT / $secs;
+ my $time = localtime time;
+ $class->log->info("*** Request $COUNT ($av/s) [$$] [$time] ***");
}
- else { $status = &$handler }
+ my $c = $class->prepare(@arguments);
+ $c->dispatch;
+ $status = $c->finalize;
};
if ( my $error = $@ ) {
parameters => {},
query_parameters => {},
secure => 0,
- snippets => [],
+ captures => [],
uploads => {}
}
),
}
);
+ $c->stats($class->stats_class->new)->enable($c->use_stats);
+ if ( $c->debug ) {
+ $c->res->headers->header( 'X-Catalyst' => $Catalyst::VERSION );
+ }
+
# For on-demand data
$c->request->{_context} = $c;
$c->response->{_context} = $c;
weaken( $c->request->{_context} );
weaken( $c->response->{_context} );
- if ( $c->debug ) {
- my $secs = time - $START || 1;
- my $av = sprintf '%.3f', $COUNT / $secs;
- $c->log->debug('**********************************');
- $c->log->debug("* Request $COUNT ($av/s) [$$]");
- $c->log->debug('**********************************');
- $c->res->headers->header( 'X-Catalyst' => $Catalyst::VERSION );
+ # Allow engine to direct the prepare flow (for POE)
+ if ( $c->engine->can('prepare') ) {
+ $c->engine->prepare( $c, @arguments );
+ }
+ else {
+ $c->prepare_request(@arguments);
+ $c->prepare_connection;
+ $c->prepare_query_parameters;
+ $c->prepare_headers;
+ $c->prepare_cookies;
+ $c->prepare_path;
+
+ # Prepare the body for reading, either by prepare_body
+ # or the user, if they are using $c->read
+ $c->prepare_read;
+
+ # Parse the body unless the user wants it on-demand
+ unless ( $c->config->{parse_on_demand} ) {
+ $c->prepare_body;
+ }
}
-
- $c->prepare_request(@arguments);
- $c->prepare_connection;
- $c->prepare_query_parameters;
- $c->prepare_headers;
- $c->prepare_cookies;
- $c->prepare_path;
-
- # On-demand parsing
- $c->prepare_body unless $c->config->{parse_on_demand};
my $method = $c->req->method || '';
- my $path = $c->req->path || '';
+ my $path = $c->req->path;
+ $path = '/' unless length $path;
my $address = $c->req->address || '';
$c->log->debug(qq/"$method" request for "$path" from "$address"/)
=head2 $c->prepare_action
-Prepares action.
+Prepares action. See L<Catalyst::Dispatcher>.
=cut
$c->prepare_uploads;
if ( $c->debug && keys %{ $c->req->body_parameters } ) {
- my $t = Text::SimpleTable->new( [ 37, 'Key' ], [ 36, 'Value' ] );
+ my $t = Text::SimpleTable->new( [ 35, 'Parameter' ], [ 36, 'Value' ] );
for my $key ( sort keys %{ $c->req->body_parameters } ) {
my $param = $c->req->body_parameters->{$key};
my $value = defined($param) ? $param : '';
Prepares a chunk of data before sending it to L<HTTP::Body>.
+See L<Catalyst::Engine>.
+
=cut
sub prepare_body_chunk {
$c->engine->prepare_query_parameters( $c, @_ );
if ( $c->debug && keys %{ $c->request->query_parameters } ) {
- my $t = Text::SimpleTable->new( [ 37, 'Key' ], [ 36, 'Value' ] );
+ my $t = Text::SimpleTable->new( [ 35, 'Parameter' ], [ 36, 'Value' ] );
for my $key ( sort keys %{ $c->req->query_parameters } ) {
my $param = $c->req->query_parameters->{$key};
my $value = defined($param) ? $param : '';
if ( $c->debug && keys %{ $c->request->uploads } ) {
my $t = Text::SimpleTable->new(
- [ 12, 'Key' ],
- [ 28, 'Filename' ],
+ [ 12, 'Parameter' ],
+ [ 26, 'Filename' ],
[ 18, 'Type' ],
[ 9, 'Size' ]
);
be used in a while loop, reading C<$maxlength> bytes on every call.
C<$maxlength> defaults to the size of the request if not specified.
-You have to set C<MyApp-E<gt>config-E<gt>{parse_on_demand}> to use this
+You have to set C<< MyApp->config->{parse_on_demand} >> to use this
directly.
+Warning: If you use read(), Catalyst will not process the body,
+so you will not be able to access POST parameters or file uploads via
+$c->request. You must handle all body parsing yourself.
+
=cut
sub read { my $c = shift; return $c->engine->read( $c, @_ ) }
=head2 $c->setup_components
-Sets up components.
+Sets up components. Specify a C<setup_components> config option to pass
+additional options directly to L<Module::Pluggable>. To add additional
+search paths, specify a key named C<search_extra> as an array
+reference. Items in the array beginning with C<::> will have the
+application class name prepended to them.
+
+All components found will also have any
+L<Devel::InnerPackage|inner packages> loaded and set up as components.
+Note, that modules which are B<not> an I<inner package> of the main
+file namespace loaded will not be instantiated as components.
=cut
sub setup_components {
my $class = shift;
- my $callback = sub {
- my ( $component, $context ) = @_;
+ my @paths = qw( ::Controller ::C ::Model ::M ::View ::V );
+ my $config = $class->config->{ setup_components };
+ my $extra = delete $config->{ search_extra } || [];
+
+ push @paths, @$extra;
+
+ my $locator = Module::Pluggable::Object->new(
+ search_path => [ map { s/^(?=::)/$class/; $_; } @paths ],
+ %$config
+ );
- unless ( $component->isa('Catalyst::Component') ) {
- return $component;
+ my @comps = sort { length $a <=> length $b } $locator->plugins;
+ my %comps = map { $_ => 1 } @comps;
+
+ for my $component ( @comps ) {
+
+ # We pass ignore_loaded here so that overlay files for (e.g.)
+ # Model::DBI::Schema sub-classes are loaded - if it's in @comps
+ # we know M::P::O found a file on disk so this is safe
+
+ Catalyst::Utils::ensure_class_loaded( $component, { ignore_loaded => 1 } );
+
+ my $module = $class->setup_component( $component );
+ my %modules = (
+ $component => $module,
+ map {
+ $_ => $class->setup_component( $_ )
+ } grep {
+ not exists $comps{$_}
+ } Devel::InnerPackage::list_packages( $component )
+ );
+
+ for my $key ( keys %modules ) {
+ $class->components->{ $key } = $modules{ $key };
}
+ }
+}
- my $suffix = Catalyst::Utils::class2classsuffix($component);
- my $config = $class->config->{$suffix} || {};
-
- my $instance;
-
- eval { $instance = $component->new( $context, $config ); };
+=head2 $c->setup_component
- if ( my $error = $@ ) {
+=cut
- chomp $error;
+sub setup_component {
+ my( $class, $component ) = @_;
- Catalyst::Exception->throw( message =>
- qq/Couldn't instantiate component "$component", "$error"/ );
- }
+ unless ( $component->can( 'COMPONENT' ) ) {
+ return $component;
+ }
- Catalyst::Exception->throw( message =>
-qq/Couldn't instantiate component "$component", "new() didn't return a object"/
- )
- unless ref $instance;
- return $instance;
- };
+ my $suffix = Catalyst::Utils::class2classsuffix( $component );
+ my $config = $class->config->{ $suffix } || {};
- eval "package $class;\n" . q!Module::Pluggable::Fast->import(
- name => '_catalyst_components',
- search => [
- "$class\::Controller", "$class\::C",
- "$class\::Model", "$class\::M",
- "$class\::View", "$class\::V"
- ],
- callback => $callback
- );
- !;
+ my $instance = eval { $component->COMPONENT( $class, $config ); };
if ( my $error = $@ ) {
-
chomp $error;
-
Catalyst::Exception->throw(
- message => qq/Couldn't load components "$error"/ );
+ message => qq/Couldn't instantiate component "$component", "$error"/
+ );
}
- for my $component ( $class->_catalyst_components($class) ) {
- $class->components->{ ref $component || $component } = $component;
- }
+ Catalyst::Exception->throw(
+ message =>
+ qq/Couldn't instantiate component "$component", "COMPONENT() didn't return an object-like value"/
+ ) unless eval { $instance->can( 'can' ) };
+
+ return $instance;
}
=head2 $c->setup_dispatcher
$dispatcher = 'Catalyst::Dispatcher::' . $dispatcher;
}
- if ( $ENV{CATALYST_DISPATCHER} ) {
- $dispatcher = 'Catalyst::Dispatcher::' . $ENV{CATALYST_DISPATCHER};
- }
-
- if ( $ENV{ uc($class) . '_DISPATCHER' } ) {
- $dispatcher =
- 'Catalyst::Dispatcher::' . $ENV{ uc($class) . '_DISPATCHER' };
+ if ( my $env = Catalyst::Utils::env_value( $class, 'DISPATCHER' ) ) {
+ $dispatcher = 'Catalyst::Dispatcher::' . $env;
}
unless ($dispatcher) {
$dispatcher = $class->dispatcher_class;
}
- $dispatcher->require;
-
- if ($@) {
- Catalyst::Exception->throw(
- message => qq/Couldn't load dispatcher "$dispatcher", "$@"/ );
+ unless (Class::Inspector->loaded($dispatcher)) {
+ require Class::Inspector->filename($dispatcher);
}
# dispatcher instance
$engine = 'Catalyst::Engine::' . $engine;
}
- if ( $ENV{CATALYST_ENGINE} ) {
- $engine = 'Catalyst::Engine::' . $ENV{CATALYST_ENGINE};
+ if ( my $env = Catalyst::Utils::env_value( $class, 'ENGINE' ) ) {
+ $engine = 'Catalyst::Engine::' . $env;
}
- if ( $ENV{ uc($class) . '_ENGINE' } ) {
- $engine = 'Catalyst::Engine::' . $ENV{ uc($class) . '_ENGINE' };
- }
-
- if ( !$engine && $ENV{MOD_PERL} ) {
+ if ( $ENV{MOD_PERL} ) {
# create the apache method
{
if ( $software eq 'mod_perl' ) {
- if ( $version >= 1.99922 ) {
- $engine = 'Catalyst::Engine::Apache2::MP20';
- }
+ if ( !$engine ) {
- elsif ( $version >= 1.9901 ) {
- $engine = 'Catalyst::Engine::Apache2::MP19';
- }
+ if ( $version >= 1.99922 ) {
+ $engine = 'Catalyst::Engine::Apache2::MP20';
+ }
- elsif ( $version >= 1.24 ) {
- $engine = 'Catalyst::Engine::Apache::MP13';
- }
+ elsif ( $version >= 1.9901 ) {
+ $engine = 'Catalyst::Engine::Apache2::MP19';
+ }
+
+ elsif ( $version >= 1.24 ) {
+ $engine = 'Catalyst::Engine::Apache::MP13';
+ }
+
+ else {
+ Catalyst::Exception->throw( message =>
+ qq/Unsupported mod_perl version: $ENV{MOD_PERL}/ );
+ }
- else {
- Catalyst::Exception->throw( message =>
- qq/Unsupported mod_perl version: $ENV{MOD_PERL}/ );
}
# install the correct mod_perl handler
$engine = $class->engine_class;
}
- $engine->require;
-
- if ($@) {
- Catalyst::Exception->throw( message =>
-qq/Couldn't load engine "$engine" (maybe you forgot to install it?), "$@"/
- );
+ unless (Class::Inspector->loaded($engine)) {
+ require Class::Inspector->filename($engine);
}
# check for old engines that are no longer compatible
sub setup_home {
my ( $class, $home ) = @_;
- if ( $ENV{CATALYST_HOME} ) {
- $home = $ENV{CATALYST_HOME};
- }
-
- if ( $ENV{ uc($class) . '_HOME' } ) {
- $home = $ENV{ uc($class) . '_HOME' };
+ if ( my $env = Catalyst::Utils::env_value( $class, 'HOME' ) ) {
+ $home = $env;
}
unless ($home) {
if ($home) {
$class->config->{home} ||= $home;
- $class->config->{root} ||= dir($home)->subdir('root');
+ $class->config->{root} ||= Path::Class::Dir->new($home)->subdir('root');
}
}
$class->log( Catalyst::Log->new );
}
- my $app_flag = Catalyst::Utils::class2env($class) . '_DEBUG';
-
- if (
- ( defined( $ENV{CATALYST_DEBUG} ) || defined( $ENV{$app_flag} ) )
- ? ( $ENV{CATALYST_DEBUG} || $ENV{$app_flag} )
- : $debug
- )
- {
+ my $env_debug = Catalyst::Utils::env_value( $class, 'DEBUG' );
+ if ( defined($env_debug) ? $env_debug : $debug ) {
no strict 'refs';
*{"$class\::debug"} = sub { 1 };
$class->log->debug('Debug messages enabled');
=cut
-sub setup_plugins {
- my ( $class, $plugins ) = @_;
+=head2 $c->setup_stats
- $plugins ||= [];
- for my $plugin ( reverse @$plugins ) {
+Sets up timing statistics class.
- $plugin = "Catalyst::Plugin::$plugin";
+=cut
- $plugin->require;
+sub setup_stats {
+ my ( $class, $stats ) = @_;
- if ($@) {
- Catalyst::Exception->throw(
- message => qq/Couldn't load plugin "$plugin", "$@"/ );
- }
+ Catalyst::Utils::ensure_class_loaded($class->stats_class);
- {
+ my $env = Catalyst::Utils::env_value( $class, 'STATS' );
+ if ( defined($env) ? $env : ($stats || $class->debug ) ) {
+ no strict 'refs';
+ *{"$class\::use_stats"} = sub { 1 };
+ $class->log->debug('Statistics enabled');
+ }
+}
+
+
+=head2 $c->registered_plugins
+
+Returns a sorted list of the plugins which have either been stated in the
+import list or which have been added via C<< MyApp->plugin(@args); >>.
+
+If passed a given plugin name, it will report a boolean value indicating
+whether or not that plugin is loaded. A fully qualified name is required if
+the plugin name does not begin with C<Catalyst::Plugin::>.
+
+ if ($c->registered_plugins('Some::Plugin')) {
+ ...
+ }
+
+=cut
+
+{
+
+ sub registered_plugins {
+ my $proto = shift;
+ return sort keys %{ $proto->_plugins } unless @_;
+ my $plugin = shift;
+ return 1 if exists $proto->_plugins->{$plugin};
+ return exists $proto->_plugins->{"Catalyst::Plugin::$plugin"};
+ }
+
+ sub _register_plugin {
+ my ( $proto, $plugin, $instant ) = @_;
+ my $class = ref $proto || $proto;
+
+ # no ignore_loaded here, the plugin may already have been
+ # defined in memory and we don't want to error on "no file" if so
+
+ Catalyst::Utils::ensure_class_loaded( $plugin );
+
+ $proto->_plugins->{$plugin} = 1;
+ unless ($instant) {
no strict 'refs';
unshift @{"$class\::ISA"}, $plugin;
}
+ return $class;
+ }
+
+ sub setup_plugins {
+ my ( $class, $plugins ) = @_;
+
+ $class->_plugins( {} ) unless $class->_plugins;
+ $plugins ||= [];
+ for my $plugin ( reverse @$plugins ) {
+
+ unless ( $plugin =~ s/\A\+// ) {
+ $plugin = "Catalyst::Plugin::$plugin";
+ }
+
+ $class->_register_plugin($plugin);
+ }
}
}
=head2 $c->stack
-Returns the stack.
+Returns an arrayref of the internal execution stack (actions that are
+currently executing).
+
+=head2 $c->stats_class
+
+Returns or sets the stats (timing statistics) class.
+
+=head2 $c->use_stats
+
+Returns 1 when stats collection is enabled. Stats collection is enabled
+when the -Stats options is set, debug is on or when the <MYAPP>_STATS
+environment variable is set.
+
+Note that this is a static method, not an accessor and should be overloaded
+by declaring "sub use_stats { 1 }" in your MyApp.pm, not by calling $c->use_stats(1).
+
+=cut
+
+sub use_stats { 0 }
+
=head2 $c->write( $data )
=head1 ON-DEMAND PARSER
The request body is usually parsed at the beginning of a request,
-but if you want to handle input yourself or speed things up a bit,
-you can enable on-demand parsing with a config parameter.
+but if you want to handle input yourself, you can enable on-demand
+parsing with a config parameter.
MyApp->config->{parse_on_demand} = 1;
=head1 THREAD SAFETY
-Catalyst has been tested under Apache 2's threading mpm_worker, mpm_winnt,
-and the standalone forking HTTP server on Windows. We believe the Catalyst
-core to be thread-safe.
+Catalyst has been tested under Apache 2's threading C<mpm_worker>,
+C<mpm_winnt>, and the standalone forking HTTP server on Windows. We
+believe the Catalyst core to be thread-safe.
If you plan to operate in a threaded environment, remember that all other
modules you are using must also be thread-safe. Some modules, most notably
=head2 L<Catalyst::Test> - The test suite.
-=head1 CREDITS
+=head1 PROJECT FOUNDER
-Andy Grundman
+sri: Sebastian Riedel <sri@cpan.org>
-Andy Wardley
+=head1 CONTRIBUTORS
-Andreas Marienborg
+abw: Andy Wardley
+
+acme: Leon Brocard <leon@astray.com>
Andrew Bramble
Andrew Ruthven
-Arthur Bergman
+andyg: Andy Grundman <andy@hybridized.org>
-Autrijus Tang
+audreyt: Audrey Tang
-Brian Cassidy
+bricas: Brian Cassidy <bricas@cpan.org>
-Christian Hansen
+chansen: Christian Hansen
-Christopher Hicks
+chicks: Christopher Hicks
-Dan Sully
+dkubb: Dan Kubb <dan.kubb-cpan@onautopilot.com>
-Danijel Milicevic
+Drew Taylor
-David Kamholz
+esskar: Sascha Kiefer
-David Naughton
+fireartist: Carl Franks <cfranks@cpan.org>
-Drew Taylor
+gabb: Danijel Milicevic
Gary Ashton Jones
Geoff Richards
-Jesse Sheidlower
+jcamacho: Juan Camacho
-Jesse Vincent
+jhannah: Jay Hannah <jay@jays.net>
Jody Belka
Johan Lindstrom
-Juan Camacho
+jon: Jon Schutz <jjschutz@cpan.org>
-Leon Brocard
+marcus: Marcus Ramberg <mramberg@cpan.org>
-Marcus Ramberg
+miyagawa: Tatsuhiko Miyagawa <miyagawa@bulknews.net>
-Matt S Trout
+mst: Matt S. Trout <mst@shadowcatsystems.co.uk>
-Robert Sedlacek
+mugwump: Sam Vilain
-Sam Vilain
+naughton: David Naughton
-Sascha Kiefer
+ningu: David Kamholz <dkamholz@cpan.org>
-Tatsuhiko Miyagawa
+nothingmuch: Yuval Kogman <nothingmuch@woobling.org>
-Ulf Edvinsson
+numa: Dan Sully <daniel@cpan.org>
+
+obra: Jesse Vincent
-Yuval Kogman
+omega: Andreas Marienborg
+
+Oleg Kostyuk <cub.uanic@gmail.com>
+
+phaylon: Robert Sedlacek <phaylon@dunkelheit.at>
+
+sky: Arthur Bergman
+
+the_jester: Jesse Sheidlower
+
+Ulf Edvinsson
-=head1 AUTHOR
+willert: Sebastian Willert <willert@cpan.org>
-Sebastian Riedel, C<sri@oook.de>
+batman: Jan Henning Thorsen <pm@flodhest.net>
=head1 LICENSE