package Catalyst;
use strict;
-use base 'Class::Data::Inheritable';
-use UNIVERSAL::require;
+use base 'Catalyst::Component';
+use bytes;
+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::Dir;
+use Path::Class::File;
+use Time::HiRes qw/gettimeofday tv_interval/;
+use URI;
+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/;
+
+BEGIN { require 5.008001; }
+
+__PACKAGE__->mk_accessors(
+ qw/counter request response state action stack namespace stats/
+);
+
+attributes->import( __PACKAGE__, \&namespace, 'lvalue' );
+
+sub depth { scalar @{ shift->stack || [] }; }
+
+# Laziness++
+*comp = \&component;
+*req = \&request;
+*res = \&response;
+
+# For backwards compatibility
+*finalize_output = \&finalize_body;
+
+# For statistics
+our $COUNT = 1;
+our $START = time;
+our $RECURSION = 1000;
+our $DETACH = "catalyst_detach\n";
+
+__PACKAGE__->mk_classdata($_)
+ for qw/components arguments dispatcher engine log dispatcher_class
+ engine_class context_class request_class response_class setup_finished/;
+
+__PACKAGE__->dispatcher_class('Catalyst::Dispatcher');
+__PACKAGE__->engine_class('Catalyst::Engine::CGI');
+__PACKAGE__->request_class('Catalyst::Request');
+__PACKAGE__->response_class('Catalyst::Response');
+
+# Remember to update this in Catalyst::Runtime as well!
+
+our $VERSION = '5.70_03';
-__PACKAGE__->mk_classdata($_) for qw/_config engine log/;
+sub import {
+ my ( $class, @arguments ) = @_;
+
+ # We have to limit $class to Catalyst to avoid pushing Catalyst upon every
+ # callers @ISA.
+ return unless $class eq 'Catalyst';
+
+ my $caller = caller(0);
+
+ unless ( $caller->isa('Catalyst') ) {
+ no strict 'refs';
+ push @{"$caller\::ISA"}, $class, 'Catalyst::Controller';
+ }
+
+ $caller->arguments( [@arguments] );
+ $caller->setup_home;
+}
+
+=head1 NAME
+
+Catalyst - The Elegant MVC Web Application Framework
+
+=head1 SYNOPSIS
+
+ # use the helper to create a new application
+ catalyst.pl MyApp
+
+ # add models, views, controllers
+ script/myapp_create.pl model Database DBIC::SchemaLoader dbi:SQLite:/path/to/db
+ script/myapp_create.pl view TT TT
+ script/myapp_create.pl controller Search
+
+ # built in testserver -- use -r to restart automatically on changes
+ script/myapp_server.pl
+
+ # command line testing interface
+ script/myapp_test.pl /yada
+
+ ### 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} =
+ $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
+ }
+ }
+
+ # The foo.tt TT template can use the stash data from the database
+ [% WHILE (item = data.next) %]
+ [% item.foo %]
+ [% END %]
+
+ # called for /bar/of/soap, /bar/of/soap/10, etc.
+ sub bar : Path('/bar/of/soap') { ... }
+
+ # called for all actions, from the top-most controller downwards
+ sub auto : Private {
+ my ( $self, $c ) = @_;
+ if ( !$c->user_exists ) { # Catalyst::Plugin::Authentication
+ $c->res->redirect( '/login' ); # require login
+ return 0; # abort request and go immediately to end()
+ }
+ return 1; # success; carry on to next action
+ }
+
+ # called after all actions are finished
+ sub end : Private {
+ my ( $self, $c ) = @_;
+ if ( scalar @{ $c->error } ) { ... } # handle errors
+ return if $c->res->body; # already have a response
+ $c->forward( 'MyApp::View::TT' ); # render template
+ }
+
+ ### in MyApp/Controller/Foo.pm
+ # called for /foo/bar
+ sub bar : Local { ... }
+
+ # called for /blargle
+ sub blargle : Global { ... }
+
+ # an index action matches /foo, but not /foo/1, etc.
+ sub index : Private { ... }
+
+ ### in MyApp/Controller/Foo/Bar.pm
+ # called for /foo/bar/baz
+ sub baz : Local { ... }
+
+ # first Root auto is called, then Foo auto, then this
+ sub auto : Private { ... }
+
+ # powerful regular expression paths are also possible
+ sub details : Regex('^product/(\w+)/details$') {
+ my ( $self, $c ) = @_;
+ # extract the (\w+) from the URI
+ my $product = $c->req->captures->[0];
+ }
+
+See L<Catalyst::Manual::Intro> for additional information.
+
+=head1 DESCRIPTION
+
+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.
+
+Catalyst plugins can be loaded by naming them as arguments to the "use
+Catalyst" statement. Omit the C<Catalyst::Plugin::> prefix from the
+plugin name, i.e., C<Catalyst::Plugin::My::Module> becomes
+C<My::Module>.
+
+ 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.
+
+The following flags are supported:
+
+=head2 -Debug
+
+Enables debug output. You can also force this setting from the system
+environment with CATALYST_DEBUG or <MYAPP>_DEBUG. The environment settings
+override the app, with <MYAPP>_DEBUG having highest priority.
+
+=head2 -Engine
+
+Forces Catalyst to use a specific engine. Omit the
+C<Catalyst::Engine::> prefix of the engine name, i.e.:
+
+ use Catalyst qw/-Engine=CGI/;
+
+=head2 -Home
+
+Forces Catalyst to use a specific home directory, e.g.:
+
+ use Catalyst qw[-Home=/usr/sri];
+
+=head2 -Log
+
+Specifies log level.
+
+=head1 METHODS
+
+=head2 INFORMATION ABOUT THE CURRENT REQUEST
+
+=head2 $c->action
+
+Returns a L<Catalyst::Action> object for the current action, which
+stringifies to the action name. See L<Catalyst::Action>.
+
+=head2 $c->namespace
+
+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
+ $c->namespace; # returns 'foo/bar';
+
+=head2 $c->request
+
+=head2 $c->req
+
+Returns the current L<Catalyst::Request> object. See
+L<Catalyst::Request>.
+
+=head2 REQUEST FLOW HANDLING
+
+=head2 $c->forward( $action [, \@arguments ] )
+
+=head2 $c->forward( $class, $method, [, \@arguments ] )
+
+Forwards processing to another action, by it's private name. If you give a
+class name but no method, C<process()> is called. You may also optionally
+pass arguments in an arrayref. The action will receive the arguments in
+C<@_> and C<$c-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.
+
+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::DBIC::Foo do_stuff/);
+ $c->forward('MyApp::View::TT');
+
+Note that forward implies an C<<eval { }>> around the call (well, 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( $action [, \@arguments ] )
+
+=head2 $c->detach( $class, $method, [, \@arguments ] )
+
+The same as C<forward>, but doesn't return to the previous action when
+processing is finished.
+
+=cut
+
+sub detach { my $c = shift; $c->dispatcher->detach( $c, @_ ) }
+
+=head2 $c->response
+
+=head2 $c->res
+
+Returns the current L<Catalyst::Response> object.
+
+=head2 $c->stash
+
+Returns a hashref to the stash, which may be used to store data and pass
+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.
+
+ $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' );
+
+=cut
+
+sub stash {
+ my $c = shift;
+ if (@_) {
+ my $stash = @_ > 1 ? {@_} : $_[0];
+ 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 not be used to store non-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 $c->clear_errors
+
+Clear errors. You probably don't want to clear the errors unless you are
+implementing a custom error screen.
+
+This is equivalent to running
+
+ $c->error(0);
+
+=cut
+
+sub clear_errors {
+ my $c = shift;
+ $c->error(0);
+}
+
+
+
+
+# search via regex
+sub _comp_search {
+ my ( $c, @names ) = @_;
+
+ foreach my $name (@names) {
+ foreach my $component ( keys %{ $c->components } ) {
+ return $c->components->{$component} if $component =~ /$name/i;
+ }
+ }
+
+ return undef;
+}
+
+# try explicit component names
+sub _comp_explicit {
+ my ( $c, @names ) = @_;
+
+ foreach my $try (@names) {
+ return $c->components->{$try} if ( exists $c->components->{$try} );
+ }
+
+ return undef;
+}
+
+# like component, but try just these prefixes before regex searching,
+# and do not try to return "sort keys %{ $c->components }"
+sub _comp_prefixes {
+ my ( $c, $name, @prefixes ) = @_;
+
+ my $appclass = ref $c || $c;
+
+ my @names = map { "${appclass}::${_}::${name}" } @prefixes;
+
+ my $comp = $c->_comp_explicit(@names);
+ return $comp if defined($comp);
+ $comp = $c->_comp_search($name);
+ return $comp;
+}
+
+# Find possible names for a prefix
+
+sub _comp_names {
+ my ( $c, @prefixes ) = @_;
+
+ my $appclass = ref $c || $c;
+
+ my @pre = map { "${appclass}::${_}::" } @prefixes;
+
+ my @names;
+
+ COMPONENT: foreach my $comp ($c->component) {
+ foreach my $p (@pre) {
+ if ($comp =~ s/^$p//) {
+ push(@names, $comp);
+ next COMPONENT;
+ }
+ }
+ }
+
+ return @names;
+}
+
+# Return a component if only one matches.
+sub _comp_singular {
+ my ( $c, @prefixes ) = @_;
+
+ my $appclass = ref $c || $c;
+
+ my ( $comp, $rest ) =
+ map { $c->_comp_search("^${appclass}::${_}::") } @prefixes;
+ return $comp unless $rest;
+}
+
+# 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 );
+ }
+ else { return $comp }
+}
+
+=head2 COMPONENT ACCESSORS
+
+=head2 $c->controller($name)
+
+Gets a L<Catalyst::Controller> instance by name.
+
+ $c->controller('Foo')->do_stuff;
+
+If name is omitted, will return the controller for the dispatched action.
+
+=cut
+
+sub controller {
+ my ( $c, $name, @args ) = @_;
+ return $c->_filter_component( $c->_comp_prefixes( $name, qw/Controller C/ ),
+ @args )
+ if ($name);
+ return $c->component( $c->action->class );
+}
+
+=head2 $c->model($name)
+
+Gets a L<Catalyst::Model> instance by name.
+
+ $c->model('Foo')->do_stuff;
+
+If the name is omitted, it will look for a config setting 'default_model',
+or check if there is only one view, and return it if that's the case.
+
+=cut
+
+sub model {
+ my ( $c, $name, @args ) = @_;
+ return $c->_filter_component( $c->_comp_prefixes( $name, qw/Model M/ ),
+ @args )
+ if $name;
+ return $c->component( $c->config->{default_model} )
+ if $c->config->{default_model};
+ return $c->_filter_component( $c->_comp_singular(qw/Model M/), @args );
+
+}
+
+=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 $c->view($name)
+
+Gets a L<Catalyst::View> instance by name.
+
+ $c->view('Foo')->do_stuff;
+
+If the name is omitted, it will look for a config setting 'default_view',
+or check if there is only one view, and forward to it if that's the case.
+
+=cut
+
+sub view {
+ my ( $c, $name, @args ) = @_;
+ return $c->_filter_component( $c->_comp_prefixes( $name, qw/View V/ ),
+ @args )
+ if $name;
+ return $c->component( $c->config->{default_view} )
+ if $c->config->{default_view};
+ return $c->_filter_component( $c->_comp_singular(qw/View V/) );
+}
+
+=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 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.
+
+=cut
+
+sub component {
+ my $c = shift;
+
+ if (@_) {
+
+ my $name = shift;
+
+ my $appclass = ref $c || $c;
+
+ my @names = (
+ $name, "${appclass}::${name}",
+ map { "${appclass}::${_}::${name}" }
+ qw/Model M Controller C View V/
+ );
+
+ my $comp = $c->_comp_explicit(@names);
+ return $c->_filter_component( $comp, @_ ) if defined($comp);
+
+ $comp = $c->_comp_search($name);
+ return $c->_filter_component( $comp, @_ ) if defined($comp);
+ }
+
+ return sort keys %{ $c->components };
+}
+
+
+
+=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' } );
+
+You can also use a L<YAML> config file like myapp.yml in your
+applications home directory.
+
+ ---
+ 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 the
+L<Catalyst::Log> man page.
+
+
+=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 }
+
+=head2 $c->dispatcher
+
+Returns the dispatcher instance. Stringifies to class name. See
+L<Catalyst::Dispatcher>.
+
+=head2 $c->engine
+
+Returns the engine instance. Stringifies to the class name. See
+L<Catalyst::Engine>.
+
+
+=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.
+
+For example:
+
+ $c->path_to( 'db', 'sqlite.db' );
+
+=cut
+
+sub path_to {
+ my ( $c, @path ) = @_;
+ my $path = Path::Class::Dir->new( $c->config->{home}, @path );
+ if ( -d $path ) { return $path }
+ else { return Path::Class::File->new( $c->config->{home}, @path ) }
+}
+
+=head2 $c->plugin( $name, $class, @args )
+
+Helper method for plugins. It creates a classdata accessor/mutator and
+loads and instantiates the given class.
+
+ MyApp->plugin( 'prototype', 'HTML::Prototype' );
+
+ $c->prototype->define_javascript_functions;
+
+=cut
+
+sub plugin {
+ my ( $class, $name, $plugin, @args ) = @_;
+ $class->_register_plugin( $plugin, 1 );
+
+ eval { $plugin->import };
+ $class->mk_classdata($name);
+ my $obj;
+ eval { $obj = $plugin->new(@args) };
+
+ if ($@) {
+ Catalyst::Exception->throw( message =>
+ qq/Couldn't instantiate instant plugin "$plugin", "$@"/ );
+ }
+
+ $class->$name($obj);
+ $class->log->debug(qq/Initialized instant plugin "$plugin" as "$name"/)
+ if $class->debug;
+}
+
+=head2 MyApp->setup
+
+Initializes the dispatcher and engine, loads any plugins, and loads the
+model, view, and controller components. You may also specify an array
+of plugins to load here, if you choose to not load them in the C<use
+Catalyst> line.
+
+ MyApp->setup;
+ MyApp->setup( qw/-Debug/ );
+
+=cut
+
+sub setup {
+ my ( $class, @arguments ) = @_;
+
+ $class->log->warn("Running setup twice is not a good idea.")
+ if ( $class->setup_finished );
+
+ unless ( $class->isa('Catalyst') ) {
+
+ Catalyst::Exception->throw(
+ message => qq/'$class' does not inherit from Catalyst/ );
+ }
+
+ if ( $class->arguments ) {
+ @arguments = ( @arguments, @{ $class->arguments } );
+ }
+
+ # Process options
+ my $flags = {};
+
+ foreach (@arguments) {
+
+ if (/^-Debug$/) {
+ $flags->{log} =
+ ( $flags->{log} ) ? 'debug,' . $flags->{log} : 'debug';
+ }
+ elsif (/^-(\w+)=?(.*)$/) {
+ $flags->{ lc $1 } = $2;
+ }
+ else {
+ push @{ $flags->{plugins} }, $_;
+ }
+ }
+
+ $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} );
+
+ for my $flag ( sort keys %{$flags} ) {
+
+ if ( my $code = $class->can( 'setup_' . $flag ) ) {
+ &$code( $class, delete $flags->{$flag} );
+ }
+ else {
+ $class->log->warn(qq/Unknown flag "$flag"/);
+ }
+ }
+
+ 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):
+ catalyst.pl -force -scripts $class
+
+ or (this will not overwrite existing files):
+ catalyst.pl -scripts $class
+EOF
+ }
+
+ if ( $class->debug ) {
+ my @plugins = map { "$_ " . ( $_->VERSION || '' ) } $class->registered_plugins;
+
+ if (@plugins) {
+ my $t = Text::SimpleTable->new(74);
+ $t->row($_) for @plugins;
+ $class->log->debug( "Loaded plugins:\n" . $t->draw );
+ }
+
+ my $dispatcher = $class->dispatcher;
+ my $engine = $class->engine;
+ my $home = $class->config->{home};
+
+ $class->log->debug(qq/Loaded dispatcher "$dispatcher"/);
+ $class->log->debug(qq/Loaded engine "$engine"/);
+
+ $home
+ ? ( -d $home )
+ ? $class->log->debug(qq/Found home "$home"/)
+ : $class->log->debug(qq/Home "$home" doesn't exist/)
+ : $class->log->debug(q/Couldn't find home/);
+ }
+
+ # Call plugins setup
+ {
+ no warnings qw/redefine/;
+ local *setup = sub { };
+ $class->setup;
+ }
+
+ # Initialize our data structure
+ $class->components( {} );
+
+ $class->setup_components;
+
+ if ( $class->debug ) {
+ my $t = Text::SimpleTable->new( [ 63, '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 )
+ if ( keys %{ $class->components } );
+ }
+
+ # Add our self to components, since we are also a component
+ $class->components->{$class} = $class;
+
+ $class->setup_actions;
+
+ if ( $class->debug ) {
+ my $name = $class->config->{name} || 'Application';
+ $class->log->info("$name powered by Catalyst $Catalyst::VERSION");
+ }
+ $class->log->_flush() if $class->log->can('_flush');
+
+ $class->setup_finished(1);
+}
+
+=head2 $c->uri_for( $path, @args?, \%query_values? )
+
+Merges path with C<$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 the last argument to uri_for is a hash reference,
+it is assumed to contain GET parameter key/value pairs, which will be
+appended to the URI in standard fashion.
+
+Instead of $path, you can also optionally pass a $action object which will
+be resolved to a path using $c->dispatcher->uri_for_action; if the first
+element of @args is an arrayref it is treated as a list of captures to be
+passed to uri_for_action.
+
+=cut
+
+sub uri_for {
+ my ( $c, $path, @args ) = @_;
+ my $base = $c->request->base->clone;
+ my $basepath = $base->path;
+ $basepath =~ s/\/$//;
+ $basepath .= '/';
+ my $namespace = $c->namespace || '';
+
+ if ( Scalar::Util::blessed($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);
+ }
+
+ # massage namespace, empty if absolute path
+ $namespace =~ s/^\/// if $namespace;
+ $namespace .= '/' if $namespace;
+ $path ||= '';
+ $namespace = '' if $path =~ /^\//;
+ $path =~ s/^\///;
+
+ my $params =
+ ( scalar @args && ref $args[$#args] eq 'HASH' ? pop @args : {} );
+
+ for my $value ( values %$params ) {
+ my $isa_ref = ref $value;
+ if( $isa_ref and $isa_ref ne 'ARRAY' ) {
+ croak( "Non-array reference ($isa_ref) passed to uri_for()" );
+ }
+ utf8::encode( $_ ) for grep { defined } $isa_ref ? @$value : $value;
+ };
+
+ # 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;
+ $res->query_form(%$params);
+ $res;
+}
+
+=head2 $c->welcome_message
+
+Returns the Catalyst welcome HTML page.
+
+=cut
+
+sub welcome_message {
+ my $c = shift;
+ my $name = $c->config->{name};
+ my $logo = $c->uri_for('/static/images/catalyst_logo.png');
+ my $prefix = Catalyst::Utils::appprefix( ref $c );
+ $c->response->content_type('text/html; charset=utf-8');
+ return <<"EOF";
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+ <head>
+ <meta http-equiv="Content-Language" content="en" />
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>$name on Catalyst $VERSION</title>
+ <style type="text/css">
+ body {
+ color: #000;
+ background-color: #eee;
+ }
+ div#content {
+ width: 640px;
+ margin-left: auto;
+ margin-right: auto;
+ margin-top: 10px;
+ margin-bottom: 10px;
+ text-align: left;
+ background-color: #ccc;
+ border: 1px solid #aaa;
+ }
+ p, h1, h2 {
+ margin-left: 20px;
+ margin-right: 20px;
+ font-family: verdana, tahoma, sans-serif;
+ }
+ a {
+ font-family: verdana, tahoma, sans-serif;
+ }
+ :link, :visited {
+ text-decoration: none;
+ color: #b00;
+ border-bottom: 1px dotted #bbb;
+ }
+ :link:hover, :visited:hover {
+ color: #555;
+ }
+ div#topbar {
+ margin: 0px;
+ }
+ pre {
+ margin: 10px;
+ padding: 8px;
+ }
+ div#answers {
+ padding: 8px;
+ margin: 10px;
+ background-color: #fff;
+ border: 1px solid #aaa;
+ }
+ h1 {
+ font-size: 0.9em;
+ font-weight: normal;
+ text-align: center;
+ }
+ h2 {
+ font-size: 1.0em;
+ }
+ p {
+ font-size: 0.9em;
+ }
+ p img {
+ float: right;
+ margin-left: 10px;
+ }
+ span#appname {
+ font-weight: bold;
+ font-size: 1.6em;
+ }
+ </style>
+ </head>
+ <body>
+ <div id="content">
+ <div id="topbar">
+ <h1><span id="appname">$name</span> on <a href="http://catalyst.perl.org">Catalyst</a>
+ $VERSION</h1>
+ </div>
+ <div id="answers">
+ <p>
+ <img src="$logo" alt="Catalyst Logo" />
+ </p>
+ <p>Welcome to the wonderful 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>
+ <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/Tutorial.pod">Catalyst::Manual::Tutorial</a></code>
+perldoc <a href="http://cpansearch.perl.org/dist/Catalyst/lib/Catalyst/Manual.pod">Catalyst::Manual</a></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>;
+ 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>;
+ you are likely to find what you need there.
+ </p>
+
+ <h2>Need help?</h2>
+ <p>Catalyst has a very active community. Here are the main places to
+ get in touch with us.</p>
+ <ul>
+ <li>
+ <a href="http://dev.catalyst.perl.org">Wiki</a>
+ </li>
+ <li>
+ <a href="http://lists.rawmode.org/mailman/listinfo/catalyst">Mailing-List</a>
+ </li>
+ <li>
+ <a href="irc://irc.perl.org/catalyst">IRC channel #catalyst on irc.perl.org</a>
+ </li>
+ </ul>
+ <h2>In conclusion</h2>
+ <p>The Catalyst team hopes you will enjoy using Catalyst as much
+ as we enjoyed making it. Please contact us if you have ideas
+ for improvement or other feedback.</p>
+ </div>
+ </div>
+ </body>
+</html>
+EOF
+}
+
+=head1 INTERNAL METHODS
+
+These methods are not meant to be used by end users.
+
+=head2 $c->components
+
+Returns a hash of components.
+
+=head2 $c->context_class
+
+Returns or sets the context class.
+
+=head2 $c->counter
+
+Returns a hashref containing coderefs and execution counts (needed for
+deep recursion detection).
+
+=head2 $c->depth
+
+Returns the number of actions on the current internal execution stack.
+
+=head2 $c->dispatch
+
+Dispatches a request to actions.
+
+=cut
+
+sub dispatch { my $c = shift; $c->dispatcher->dispatch( $c, @_ ) }
+
+=head2 $c->dispatcher_class
+
+Returns or sets the dispatcher class.
+
+=head2 $c->dump_these
+
+Returns a list of 2-element array references (name, structure) pairs
+that will be dumped on the error page in debug mode.
+
+=cut
+
+sub dump_these {
+ my $c = shift;
+ [ Request => $c->req ],
+ [ Response => $c->res ],
+ [ Stash => $c->stash ],
+ [ Config => $c->config ];
+}
+
+=head2 $c->engine_class
+
+Returns or sets the engine class.
+
+=head2 $c->execute( $class, $coderef )
+
+Execute a coderef in given class and catch exceptions. Errors are available
+via $c->error.
+
+=cut
+
+sub execute {
+ my ( $c, $class, $code ) = @_;
+ $class = $c->component($class) || $class;
+ $c->state(0);
+
+ 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;
+ }
+
+ my $stats_info = $c->_stats_start_execute( $code );
+
+ push( @{ $c->stack }, $code );
+
+ eval { $c->state( &$code( $class, $c, @{ $c->req->args } ) || 0 ) };
+
+ $c->_stats_finish_execute( $stats_info );
+
+ my $last = ${ $c->stack }[-1];
+ pop( @{ $c->stack } );
+
+ if ( my $error = $@ ) {
+ if ( $error eq $DETACH ) { die $DETACH if $c->depth > 1 }
+ else {
+ unless ( ref $error ) {
+ chomp $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 unless $c->debug;
+
+ my $action = "$code";
+
+ $action = "/$action" unless $action =~ /\-\>/;
+ $c->counter->{"$code"}++;
+
+ # 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 $node = Tree::Simple->new(
+ {
+ action => $action,
+ elapsed => undef, # to be filled in later
+ comment => "",
+ }
+ );
+ $node->setUID( "$code" . $c->counter->{"$code"} );
+
+ unless ( ( $code->name =~ /^_.*/ )
+ && ( !$c->config->{show_internal_actions} ) )
+ {
+ # is this a root-level call or a forwarded call?
+ if ( $callsub =~ /forward$/ ) {
+
+ # forward, locate the caller
+ if ( my $parent = $c->stack->[-1] ) {
+ my $visitor = Tree::Simple::Visitor::FindByUID->new;
+ $visitor->searchForUID(
+ "$parent" . $c->counter->{"$parent"} );
+ $c->stats->accept($visitor);
+ if ( my $result = $visitor->getResult ) {
+ $result->addChild($node);
+ }
+ }
+ else {
+
+ # forward with no caller may come from a plugin
+ $c->stats->addChild($node);
+ }
+ }
+ else {
+
+ # root-level call
+ $c->stats->addChild($node);
+ }
+ }
+
+ my $start = [gettimeofday];
+ my $elapsed = tv_interval($start);
+
+ return {
+ code => $code,
+ elapsed => $elapsed,
+ start => $start,
+ node => $node,
+ }
+}
+
+sub _stats_finish_execute {
+ my ( $c, $info ) = @_;
+
+ return unless $c->debug;
+
+ my ( $code, $start, $elapsed ) = @{ $info }{qw/code start elapsed/};
+
+ unless ( ( $code->name =~ /^_.*/ )
+ && ( !$c->config->{show_internal_actions} ) )
+ {
+
+ # FindByUID uses an internal die, so we save the existing error
+ my $error = $@;
+
+ # locate the node in the tree and update the elapsed time
+ my $visitor = Tree::Simple::Visitor::FindByUID->new;
+ $visitor->searchForUID( "$code" . $c->counter->{"$code"} );
+ $c->stats->accept($visitor);
+ if ( my $result = $visitor->getResult ) {
+ my $value = $result->getNodeValue;
+ $value->{elapsed} = sprintf( '%fs', $elapsed );
+ $result->setNodeValue($value);
+ }
+
+ # restore error
+ $@ = $error || undef;
+ }
+}
+
+=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.
+
+=cut
+
+sub finalize {
+ my $c = shift;
+
+ for my $error ( @{ $c->error } ) {
+ $c->log->error($error);
+ }
+
+ # Allow engine to handle finalize flow (for POE)
+ if ( $c->engine->can('finalize') ) {
+ $c->engine->finalize($c);
+ }
+ else {
+
+ $c->finalize_uploads;
+
+ # Error
+ if ( $#{ $c->error } >= 0 ) {
+ $c->finalize_error;
+ }
+
+ $c->finalize_headers;
+
+ # HEAD request
+ if ( $c->request->method eq 'HEAD' ) {
+ $c->response->body('');
+ }
+
+ $c->finalize_body;
+ }
+
+ return $c->response->status;
+}
+
+=head2 $c->finalize_body
+
+Finalizes body.
+
+=cut
+
+sub finalize_body { my $c = shift; $c->engine->finalize_body( $c, @_ ) }
+
+=head2 $c->finalize_cookies
+
+Finalizes cookies.
+
+=cut
+
+sub finalize_cookies { my $c = shift; $c->engine->finalize_cookies( $c, @_ ) }
+
+=head2 $c->finalize_error
+
+Finalizes error.
+
+=cut
+
+sub finalize_error { my $c = shift; $c->engine->finalize_error( $c, @_ ) }
+
+=head2 $c->finalize_headers
+
+Finalizes headers.
+
+=cut
+
+sub finalize_headers {
+ my $c = shift;
+
+ # Check if we already finalized headers
+ return if $c->response->{_finalized_headers};
+
+ # Handle redirects
+ if ( my $location = $c->response->redirect ) {
+ $c->log->debug(qq/Redirecting to "$location"/) if $c->debug;
+ $c->response->header( Location => $location );
+ }
+
+ # Content-Length
+ if ( $c->response->body && !$c->response->content_length ) {
+
+ # get the length from a filehandle
+ if ( blessed( $c->response->body ) && $c->response->body->can('read') )
+ {
+ if ( my $stat = stat $c->response->body ) {
+ $c->response->content_length( $stat->size );
+ }
+ else {
+ $c->log->warn('Serving filehandle without a content-length');
+ }
+ }
+ else {
+ $c->response->content_length( bytes::length( $c->response->body ) );
+ }
+ }
+
+ # Errors
+ if ( $c->response->status =~ /^(1\d\d|[23]04)$/ ) {
+ $c->response->headers->remove_header("Content-Length");
+ $c->response->body('');
+ }
+
+ $c->finalize_cookies;
+
+ $c->engine->finalize_headers( $c, @_ );
+
+ # Done
+ $c->response->{_finalized_headers} = 1;
+}
+
+=head2 $c->finalize_output
+
+An alias for finalize_body.
+
+=head2 $c->finalize_read
+
+Finalizes the input after reading is complete.
+
+=cut
+
+sub finalize_read { my $c = shift; $c->engine->finalize_read( $c, @_ ) }
+
+=head2 $c->finalize_uploads
+
+Finalizes uploads. Cleans up any temporary files.
+
+=cut
+
+sub finalize_uploads { my $c = shift; $c->engine->finalize_uploads( $c, @_ ) }
+
+=head2 $c->get_action( $action, $namespace )
+
+Gets an action in a given namespace.
+
+=cut
+
+sub get_action { my $c = shift; $c->dispatcher->get_action(@_) }
+
+=head2 $c->get_actions( $action, $namespace )
+
+Gets all actions of a given name in a namespace and all parent
+namespaces.
+
+=cut
+
+sub get_actions { my $c = shift; $c->dispatcher->get_actions( $c, @_ ) }
+
+=head2 $c->handle_request( $class, @arguments )
+
+Called to handle each HTTP request.
+
+=cut
+
+sub handle_request {
+ my ( $class, @arguments ) = @_;
+
+ # Always expect worst case!
+ my $status = -1;
+ eval {
+ my $stats = ( $class->debug ) ? Tree::Simple->new: q{};
+
+ 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( [ 62, 'Action' ], [ 9, 'Time' ] );
+
+ $stats->traverse(
+ sub {
+ my $action = shift;
+ my $stat = $action->getNodeValue;
+ $t->row( ( q{ } x $action->getDepth ) . $stat->{action} . $stat->{comment},
+ $stat->{elapsed} || '??' );
+ }
+ );
+
+ $class->log->info(
+ "Request took ${elapsed}s ($av/s)\n" . $t->draw );
+ }
+ else { $status = &$handler }
+
+ };
+
+ if ( my $error = $@ ) {
+ chomp $error;
+ $class->log->error(qq/Caught exception in engine "$error"/);
+ }
+
+ $COUNT++;
+ $class->log->_flush() if $class->log->can('_flush');
+ return $status;
+}
+
+=head2 $c->prepare( @arguments )
+
+Creates a Catalyst context from an engine-specific request (Apache, CGI,
+etc.).
+
+=cut
+
+sub prepare {
+ my ( $class, @arguments ) = @_;
+
+ $class->context_class( ref $class || $class ) unless $class->context_class;
+ my $c = $class->context_class->new(
+ {
+ counter => {},
+ stack => [],
+ request => $class->request_class->new(
+ {
+ arguments => [],
+ body_parameters => {},
+ cookies => {},
+ headers => HTTP::Headers->new,
+ parameters => {},
+ query_parameters => {},
+ secure => 0,
+ captures => [],
+ uploads => {}
+ }
+ ),
+ response => $class->response_class->new(
+ {
+ body => '',
+ cookies => {},
+ headers => HTTP::Headers->new(),
+ status => 200
+ }
+ ),
+ stash => {},
+ state => 0
+ }
+ );
+
+ # 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;
+ my $time = localtime time;
+ $c->log->info("*** Request $COUNT ($av/s) [$$] [$time] ***");
+ $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;
+
+ # On-demand parsing
+ $c->prepare_body unless $c->config->{parse_on_demand};
+ }
+
+ my $method = $c->req->method || '';
+ my $path = $c->req->path || '/';
+ my $address = $c->req->address || '';
+
+ $c->log->debug(qq/"$method" request for "$path" from "$address"/)
+ if $c->debug;
+
+ $c->prepare_action;
+
+ return $c;
+}
+
+=head2 $c->prepare_action
+
+Prepares action. See L<Catalyst::Dispatcher>.
+
+=cut
+
+sub prepare_action { my $c = shift; $c->dispatcher->prepare_action( $c, @_ ) }
+
+=head2 $c->prepare_body
+
+Prepares message body.
+
+=cut
+
+sub prepare_body {
+ my $c = shift;
+
+ # Do we run for the first time?
+ return if defined $c->request->{_body};
+
+ # Initialize on-demand data
+ $c->engine->prepare_body( $c, @_ );
+ $c->prepare_parameters;
+ $c->prepare_uploads;
+
+ if ( $c->debug && keys %{ $c->req->body_parameters } ) {
+ 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 : '';
+ $t->row( $key,
+ ref $value eq 'ARRAY' ? ( join ', ', @$value ) : $value );
+ }
+ $c->log->debug( "Body Parameters are:\n" . $t->draw );
+ }
+}
+
+=head2 $c->prepare_body_chunk( $chunk )
+
+Prepares a chunk of data before sending it to L<HTTP::Body>.
+
+See L<Catalyst::Engine>.
+
+=cut
+
+sub prepare_body_chunk {
+ my $c = shift;
+ $c->engine->prepare_body_chunk( $c, @_ );
+}
+
+=head2 $c->prepare_body_parameters
+
+Prepares body parameters.
+
+=cut
+
+sub prepare_body_parameters {
+ my $c = shift;
+ $c->engine->prepare_body_parameters( $c, @_ );
+}
+
+=head2 $c->prepare_connection
+
+Prepares connection.
+
+=cut
+
+sub prepare_connection {
+ my $c = shift;
+ $c->engine->prepare_connection( $c, @_ );
+}
+
+=head2 $c->prepare_cookies
+
+Prepares cookies.
+
+=cut
+
+sub prepare_cookies { my $c = shift; $c->engine->prepare_cookies( $c, @_ ) }
-our $VERSION = '5.00';
-our @ISA;
+=head2 $c->prepare_headers
-=head1 NAME
+Prepares headers.
-Catalyst - The Elegant MVC Web Application Framework
+=cut
-=head1 SYNOPSIS
+sub prepare_headers { my $c = shift; $c->engine->prepare_headers( $c, @_ ) }
- # use the helper to start a new application
- catalyst.pl MyApp
- cd MyApp
+=head2 $c->prepare_parameters
- # add models, views, controllers
- script/create.pl model Something
- script/create.pl view Stuff
- script/create.pl controller Yada
+Prepares parameters.
+
+=cut
- # built in testserver
- script/server.pl
+sub prepare_parameters {
+ my $c = shift;
+ $c->prepare_body_parameters;
+ $c->engine->prepare_parameters( $c, @_ );
+}
- # command line interface
- script/test.pl /yada
+=head2 $c->prepare_path
+Prepares path and base.
- use Catalyst;
+=cut
- use Catalyst qw/My::Module My::OtherModule/;
+sub prepare_path { my $c = shift; $c->engine->prepare_path( $c, @_ ) }
- use Catalyst '-Debug';
+=head2 $c->prepare_query_parameters
- use Catalyst qw/-Debug -Engine=CGI/;
+Prepares query parameters.
- __PACKAGE__->action( '!default' => sub { $_[1]->res->output('Hello') } );
+=cut
- __PACKAGE__->action(
- 'index.html' => sub {
- my ( $self, $c ) = @_;
- $c->res->output('Hello');
- $c->forward('_foo');
- }
- );
+sub prepare_query_parameters {
+ my $c = shift;
+
+ $c->engine->prepare_query_parameters( $c, @_ );
- __PACKAGE__->action(
- '/^product[_]*(\d*).html$/' => sub {
- my ( $self, $c ) = @_;
- $c->stash->{template} = 'product.tt';
- $c->stash->{product} = $c->req->snippets->[0];
+ if ( $c->debug && keys %{ $c->request->query_parameters } ) {
+ 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 : '';
+ $t->row( $key,
+ ref $value eq 'ARRAY' ? ( join ', ', @$value ) : $value );
}
- );
+ $c->log->debug( "Query Parameters are:\n" . $t->draw );
+ }
+}
-See also L<Catalyst::Manual::Intro>
+=head2 $c->prepare_read
-=head1 DESCRIPTION
+Prepares the input for reading.
-Catalyst is based upon L<Maypole>, which you should consider for smaller
-projects.
+=cut
-The key concept of Catalyst is DRY (Don't Repeat Yourself).
+sub prepare_read { my $c = shift; $c->engine->prepare_read( $c, @_ ) }
-See L<Catalyst::Manual> for more documentation.
+=head2 $c->prepare_request
-Catalyst plugins can be loaded by naming them as arguments to the "use Catalyst" statement.
-Omit the C<Catalyst::Plugin::> prefix from the plugin name,
-so C<Catalyst::Plugin::My::Module> becomes C<My::Module>.
+Prepares the engine request.
- use Catalyst 'My::Module';
+=cut
-Special flags like -Debug and -Engine can also be specifed as arguments when
-Catalyst is loaded:
+sub prepare_request { my $c = shift; $c->engine->prepare_request( $c, @_ ) }
- use Catalyst qw/-Debug My::Module/;
+=head2 $c->prepare_uploads
-The position of plugins and flags in the chain is important, because they are
-loaded in exactly the order that they appear.
+Prepares uploads.
-The following flags are supported:
+=cut
-=over 4
+sub prepare_uploads {
+ my $c = shift;
+
+ $c->engine->prepare_uploads( $c, @_ );
+
+ if ( $c->debug && keys %{ $c->request->uploads } ) {
+ my $t = Text::SimpleTable->new(
+ [ 12, 'Parameter' ],
+ [ 26, 'Filename' ],
+ [ 18, 'Type' ],
+ [ 9, 'Size' ]
+ );
+ for my $key ( sort keys %{ $c->request->uploads } ) {
+ my $upload = $c->request->uploads->{$key};
+ for my $u ( ref $upload eq 'ARRAY' ? @{$upload} : ($upload) ) {
+ $t->row( $key, $u->filename, $u->type, $u->size );
+ }
+ }
+ $c->log->debug( "File Uploads are:\n" . $t->draw );
+ }
+}
-=item -Debug
+=head2 $c->prepare_write
-enables debug output, i.e.:
+Prepares the output for writing.
- use Catalyst '-Debug';
+=cut
-this is equivalent to:
+sub prepare_write { my $c = shift; $c->engine->prepare_write( $c, @_ ) }
- use Catalyst;
- sub debug { 1 }
+=head2 $c->request_class
-=item -Engine
+Returns or sets the request class.
-Force Catalyst to use a specific engine.
-Omit the C<Catalyst::Engine::> prefix of the engine name, i.e.:
+=head2 $c->response_class
- use Catalyst '-Engine=CGI';
+Returns or sets the response class.
-=back
+=head2 $c->read( [$maxlength] )
-=head1 METHODS
+Reads a chunk of data from the request body. This method is designed to
+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
+directly.
+
+=cut
-=over 4
+sub read { my $c = shift; return $c->engine->read( $c, @_ ) }
-=item debug
+=head2 $c->run
-Overload to enable debug messages.
+Starts the engine.
=cut
-sub debug { 0 }
+sub run { my $c = shift; return $c->engine->run( $c, @_ ) }
-=item config
+=head2 $c->set_action( $action, $code, $namespace, $attrs )
-Returns a hashref containing your applications settings.
+Sets an action in a given namespace.
=cut
-sub config {
- my $self = shift;
- $self->_config( {} ) unless $self->_config;
- if ( $_[0] ) {
- my $config = $_[1] ? {@_} : $_[0];
- while ( my ( $key, $val ) = each %$config ) {
- $self->_config->{$key} = $val;
+sub set_action { my $c = shift; $c->dispatcher->set_action( $c, @_ ) }
+
+=head2 $c->setup_actions($component)
+
+Sets up actions for a component.
+
+=cut
+
+sub setup_actions { my $c = shift; $c->dispatcher->setup_actions( $c, @_ ) }
+
+=head2 $c->setup_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.
+
+=cut
+
+sub setup_components {
+ my $class = shift;
+
+ 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
+ );
+
+ for my $component ( sort { length $a <=> length $b } $locator->plugins ) {
+ Catalyst::Utils::ensure_class_loaded( $component );
+
+ my $module = $class->setup_component( $component );
+ my %modules = (
+ $component => $module,
+ map {
+ $_ => $class->setup_component( $_ )
+ } Devel::InnerPackage::list_packages( $component )
+ );
+
+ for my $key ( keys %modules ) {
+ $class->components->{ $key } = $modules{ $key };
}
}
- return $self->_config;
}
-sub import {
- my ( $self, @options ) = @_;
- my $caller = caller(0);
+=head2 $c->setup_component
- unless ( $caller->isa($self) ) {
- no strict 'refs';
- push @{"$caller\::ISA"}, $self;
+=cut
+
+sub setup_component {
+ my( $class, $component ) = @_;
+
+ unless ( $component->can( 'COMPONENT' ) ) {
+ return $component;
+ }
+
+ my $suffix = Catalyst::Utils::class2classsuffix( $component );
+ my $config = $class->config->{ $suffix } || {};
+
+ my $instance = eval { $component->COMPONENT( $class, $config ); };
+
+ if ( my $error = $@ ) {
+ chomp $error;
+ Catalyst::Exception->throw(
+ message => qq/Couldn't instantiate component "$component", "$error"/
+ );
+ }
+
+ 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
+
+Sets up dispatcher.
+
+=cut
+
+sub setup_dispatcher {
+ my ( $class, $dispatcher ) = @_;
+
+ if ($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' };
+ }
+
+ unless ($dispatcher) {
+ $dispatcher = $class->dispatcher_class;
+ }
+
+ unless (Class::Inspector->loaded($dispatcher)) {
+ require Class::Inspector->filename($dispatcher);
+ }
+
+ # dispatcher instance
+ $class->dispatcher( $dispatcher->new );
+}
+
+=head2 $c->setup_engine
+
+Sets up engine.
+
+=cut
+
+sub setup_engine {
+ my ( $class, $engine ) = @_;
+
+ if ($engine) {
+ $engine = 'Catalyst::Engine::' . $engine;
+ }
+
+ if ( $ENV{CATALYST_ENGINE} ) {
+ $engine = 'Catalyst::Engine::' . $ENV{CATALYST_ENGINE};
}
- unless ( $caller->log ) {
- $caller->log( Catalyst::Log->new );
+ if ( $ENV{ uc($class) . '_ENGINE' } ) {
+ $engine = 'Catalyst::Engine::' . $ENV{ uc($class) . '_ENGINE' };
}
- # Options
- my $engine =
- $ENV{MOD_PERL} ? 'Catalyst::Engine::Apache' : 'Catalyst::Engine::CGI';
- foreach (@options) {
- if (/^\-Debug$/) {
- no warnings;
+ if ( $ENV{MOD_PERL} ) {
+
+ # create the apache method
+ {
no strict 'refs';
- *{"$caller\::debug"} = sub { 1 };
- $caller->log->debug('Debug messages enabled');
+ *{"$class\::apache"} = sub { shift->engine->apache };
}
- elsif (/^-Engine=(.*)$/) { $engine = "Catalyst::Engine::$1" }
- elsif (/^-.*$/) { $caller->log->error(qq/Unknown flag "$_"/) }
- else {
- my $plugin = "Catalyst::Plugin::$_";
- # Plugin caller should be our application class
- eval "package $caller; require $plugin";
- if ($@) {
- $caller->log->error(qq/Couldn't load plugin "$plugin", "$@"/);
+ my ( $software, $version ) =
+ $ENV{MOD_PERL} =~ /^(\S+)\/(\d+(?:[\.\_]\d+)+)/;
+
+ $version =~ s/_//g;
+ $version =~ s/(\.[^.]+)\./$1/g;
+
+ if ( $software eq 'mod_perl' ) {
+
+ if ( !$engine ) {
+
+ if ( $version >= 1.99922 ) {
+ $engine = 'Catalyst::Engine::Apache2::MP20';
+ }
+
+ 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}/ );
+ }
+
+ }
+
+ # install the correct mod_perl handler
+ if ( $version >= 1.9901 ) {
+ *handler = sub : method {
+ shift->handle_request(@_);
+ };
}
else {
- $caller->log->debug(qq/Loaded plugin "$plugin"/)
- if $caller->debug;
- no strict 'refs';
- push @{"$caller\::ISA"}, $plugin;
+ *handler = sub ($$) { shift->handle_request(@_) };
}
+
+ }
+
+ elsif ( $software eq 'Zeus-Perl' ) {
+ $engine = 'Catalyst::Engine::Zeus';
}
+
+ else {
+ Catalyst::Exception->throw(
+ message => qq/Unsupported mod_perl: $ENV{MOD_PERL}/ );
+ }
+ }
+
+ unless ($engine) {
+ $engine = $class->engine_class;
+ }
+
+ unless (Class::Inspector->loaded($engine)) {
+ require Class::Inspector->filename($engine);
+ }
+
+ # check for old engines that are no longer compatible
+ my $old_engine;
+ if ( $engine->isa('Catalyst::Engine::Apache')
+ && !Catalyst::Engine::Apache->VERSION )
+ {
+ $old_engine = 1;
+ }
+
+ elsif ( $engine->isa('Catalyst::Engine::Server::Base')
+ && Catalyst::Engine::Server->VERSION le '0.02' )
+ {
+ $old_engine = 1;
+ }
+
+ elsif ($engine->isa('Catalyst::Engine::HTTP::POE')
+ && $engine->VERSION eq '0.01' )
+ {
+ $old_engine = 1;
+ }
+
+ elsif ($engine->isa('Catalyst::Engine::Zeus')
+ && $engine->VERSION eq '0.01' )
+ {
+ $old_engine = 1;
+ }
+
+ if ($old_engine) {
+ Catalyst::Exception->throw( message =>
+ qq/Engine "$engine" is not supported by this version of Catalyst/
+ );
+ }
+
+ # engine instance
+ $class->engine( $engine->new );
+}
+
+=head2 $c->setup_home
+
+Sets up the home directory.
+
+=cut
+
+sub setup_home {
+ my ( $class, $home ) = @_;
+
+ if ( $ENV{CATALYST_HOME} ) {
+ $home = $ENV{CATALYST_HOME};
+ }
+
+ if ( $ENV{ uc($class) . '_HOME' } ) {
+ $home = $ENV{ uc($class) . '_HOME' };
+ }
+
+ unless ($home) {
+ $home = Catalyst::Utils::home($class);
+ }
+
+ if ($home) {
+ $class->config->{home} ||= $home;
+ $class->config->{root} ||= Path::Class::Dir->new($home)->subdir('root');
+ }
+}
+
+=head2 $c->setup_log
+
+Sets up log.
+
+=cut
+
+sub setup_log {
+ my ( $class, $debug ) = @_;
+
+ unless ( $class->log ) {
+ $class->log( Catalyst::Log->new );
}
- # Engine
- $engine = "Catalyst::Engine::$ENV{CATALYST_ENGINE}"
- if $ENV{CATALYST_ENGINE};
- $engine->require;
- die qq/Couldn't load engine "$engine", "$@"/ if $@;
+ my $app_flag = Catalyst::Utils::class2env($class) . '_DEBUG';
+
+ if (
+ ( defined( $ENV{CATALYST_DEBUG} ) || defined( $ENV{$app_flag} ) )
+ ? ( $ENV{CATALYST_DEBUG} || $ENV{$app_flag} )
+ : $debug
+ )
{
no strict 'refs';
- push @{"$caller\::ISA"}, $engine;
+ *{"$class\::debug"} = sub { 1 };
+ $class->log->debug('Debug messages enabled');
+ }
+}
+
+=head2 $c->setup_plugins
+
+Sets up plugins.
+
+=cut
+
+=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 || $proto;
+
+ unless (Class::Inspector->loaded($plugin)) {
+ require Class::Inspector->filename($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);
+ }
}
- $caller->engine($engine);
- $caller->log->debug(qq/Loaded engine "$engine"/) if $caller->debug;
}
-=item $c->engine
+=head2 $c->stack
+
+Returns an arrayref of the internal execution stack (actions that are currently
+executing).
+
+=head2 $c->write( $data )
+
+Writes $data to the output stream. When using this method directly, you
+will need to manually set the C<Content-Length> header to the length of
+your output data, if known.
+
+=cut
+
+sub write {
+ my $c = shift;
+
+ # Finalize headers if someone manually writes output
+ $c->finalize_headers;
+
+ return $c->engine->write( $c, @_ );
+}
+
+=head2 version
+
+Returns the Catalyst version number. Mostly useful for "powered by"
+messages in template systems.
+
+=cut
+
+sub version { return $Catalyst::VERSION }
+
+=head1 INTERNAL ACTIONS
-Contains the engine class.
+Catalyst uses internal actions like C<_DISPATCH>, C<_BEGIN>, C<_AUTO>,
+C<_ACTION>, and C<_END>. These are by default not shown in the private
+action table, but you can make them visible with a config parameter.
-=item $c->log
+ MyApp->config->{show_internal_actions} = 1;
-Contains the logging object. Unless it is already set Catalyst sets this up with a
-C<Catalyst::Log> object. To use your own log class:
+=head1 CASE SENSITIVITY
- $c->log( MyLogger->new );
- $c->log->info("now logging with my own logger!");
+By default Catalyst is not case sensitive, so C<MyApp::C::FOO::Bar> is
+mapped to C</foo/bar>. You can activate case sensitivity with a config
+parameter.
-Your log class should implement the methods described in the C<Catalyst::Log>
-man page.
+ MyApp->config->{case_sensitive} = 1;
+This causes C<MyApp::C::Foo::Bar> to map to C</Foo/Bar>.
-=back
+=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.
+
+ MyApp->config->{parse_on_demand} = 1;
+
+=head1 PROXY SUPPORT
+
+Many production servers operate using the common double-server approach,
+with a lightweight frontend web server passing requests to a larger
+backend server. An application running on the backend server must deal
+with two problems: the remote user always appears to be C<127.0.0.1> and
+the server's hostname will appear to be C<localhost> regardless of the
+virtual host that the user connected through.
+
+Catalyst will automatically detect this situation when you are running
+the frontend and backend servers on the same machine. The following
+changes are made to the request.
+
+ $c->req->address is set to the user's real IP address, as read from
+ the HTTP X-Forwarded-For header.
+
+ The host value for $c->req->base and $c->req->uri is set to the real
+ host, as read from the HTTP X-Forwarded-Host header.
+
+Obviously, your web server must support these headers for this to work.
+
+In a more complex server farm environment where you may have your
+frontend proxy server(s) on different machines, you will need to set a
+configuration option to tell Catalyst to read the proxied data from the
+headers.
+
+ MyApp->config->{using_frontend_proxy} = 1;
+
+If you do not wish to use the proxy support at all, you may set:
+
+ MyApp->config->{ignore_frontend_proxy} = 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.
+
+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
+L<DBD::SQLite>, are not thread-safe.
=head1 SUPPORT
Join #catalyst on irc.perl.org.
-Mailing-Lists:
+Mailing Lists:
http://lists.rawmode.org/mailman/listinfo/catalyst
http://lists.rawmode.org/mailman/listinfo/catalyst-dev
-
+
+Web:
+
+ http://catalyst.perl.org
+
+Wiki:
+
+ http://dev.catalyst.perl.org
+
=head1 SEE ALSO
-L<Catalyst::Manual>, L<Catalyst::Test>, L<Catalyst::Request>,
-L<Catalyst::Response>, L<Catalyst::Engine>
+=head2 L<Task::Catalyst> - All you need to start with Catalyst
-=head1 AUTHOR
+=head2 L<Catalyst::Manual> - The Catalyst Manual
-Sebastian Riedel, C<sri@oook.de>
+=head2 L<Catalyst::Component>, L<Catalyst::Base> - Base classes for components
+
+=head2 L<Catalyst::Engine> - Core engine
+
+=head2 L<Catalyst::Log> - Log class.
+
+=head2 L<Catalyst::Request> - Request object
+
+=head2 L<Catalyst::Response> - Response object
+
+=head2 L<Catalyst::Test> - The test suite.
+
+=head1 CREDITS
+
+Andy Grundman
+
+Andy Wardley
+
+Andreas Marienborg
-=head1 THANK YOU
+Andrew Bramble
-Andrew Ford, Andrew Ruthven, Christian Hansen, Christopher Hicks,
-Dan Sully, Danijel Milicevic, David Naughton, Gary Ashton Jones,
-Jesse Sheidlower, Johan Lindstrom, Marcus Ramberg, Tatsuhiko Miyagawa
-and all the others who've helped.
+Andrew Ford
+
+Andrew Ruthven
+
+Arthur Bergman
+
+Autrijus Tang
+
+Brian Cassidy
+
+Carl Franks
+
+Christian Hansen
+
+Christopher Hicks
+
+Dan Sully
+
+Danijel Milicevic
+
+David Kamholz
+
+David Naughton
+
+Drew Taylor
+
+Gary Ashton Jones
+
+Geoff Richards
+
+Jesse Sheidlower
+
+Jesse Vincent
+
+Jody Belka
+
+Johan Lindstrom
+
+Juan Camacho
+
+Leon Brocard
+
+Marcus Ramberg
+
+Matt S Trout
+
+Robert Sedlacek
+
+Sam Vilain
+
+Sascha Kiefer
+
+Tatsuhiko Miyagawa
+
+Ulf Edvinsson
+
+Yuval Kogman
+
+=head1 AUTHOR
+
+Sebastian Riedel, C<sri@oook.de>
=head1 LICENSE
-This library is free software . You can redistribute it and/or modify it under
-the same terms as perl itself.
+This library is free software, you can redistribute it and/or modify it under
+the same terms as Perl itself.
=cut