package Apache::MVC;
-use base qw(Class::Accessor Class::Data::Inheritable);
-use attributes ();
-use Class::DBI::Loader;
-use UNIVERSAL::require;
-use Apache::Constants ":common";
+
+our $VERSION = '2.11';
+
use strict;
use warnings;
-our $VERSION = "1.0";
-__PACKAGE__->mk_classdata($_) for qw( _config init_done view_object );
-__PACKAGE__->mk_accessors ( qw( config ar params objects model_class
-args action template ));
-__PACKAGE__->config({});
-__PACKAGE__->init_done(0);
-
-
-sub import {
- my $real = shift;
- if ($real ne "Apache::MVC") {
- no strict 'refs';
- *{$real."::handler"} = sub { Apache::MVC::handler($real, @_) };
+
+use URI;
+use URI::QueryParam;
+
+use base 'Maypole';
+use Maypole::Headers;
+use Maypole::Constants;
+
+__PACKAGE__->mk_accessors( qw( ar ) );
+
+our $MODPERL2;
+our $modperl_version;
+
+BEGIN {
+ $MODPERL2 = ( exists $ENV{MOD_PERL_API_VERSION} and
+ $ENV{MOD_PERL_API_VERSION} >= 2 );
+ if ($MODPERL2) {
+ eval 'use mod_perl2; $modperl_version = $mod_perl2::VERSION;';
+ if ($@) {
+ $modperl_version = $Apache2::RequestRec::VERSION;
+ }
+ require Apache2::RequestIO;
+ require Apache2::RequestRec;
+ require Apache2::RequestUtil;
+ eval 'use Apache2::Const -compile => qw/REDIRECT/;'; # -compile 4 no import
+ require APR::URI;
+ require HTTP::Body;
+ } else {
+ eval ' use mod_perl; ';
+ require Apache;
+ require Apache::Request;
+ eval 'use Apache::Constants -compile => qw/REDIRECT/;';
+ $modperl_version = 1;
}
+
}
-# This is really dirty.
-sub config {
- my $self = shift;
- if (ref $self) { return $self->_config_accessor(@_) }
- return $self->_config(@_);
+=head1 NAME
+
+Apache::MVC - Apache front-end to Maypole
+
+=head1 SYNOPSIS
+
+ package BeerDB;
+ use Maypole::Application;
+
+=head1 DESCRIPTION
+
+A mod_perl platform driver for Maypole. Your application can inherit from
+Apache::MVC directly, but it is recommended that you use
+L<Maypole::Application>.
+
+=head1 INSTALLATION
+
+Create a driver module like the one illustrated in L<Maypole::Application>.
+
+Put the following in your Apache config:
+
+ <Location /beer>
+ SetHandler perl-script
+ PerlHandler BeerDB
+ </Location>
+
+Copy the templates found in F<templates/factory> into the F<beer/factory>
+directory off the web root. When the designers get back to you with custom
+templates, they are to go in F<beer/custom>. If you need to override templates
+on a database-table-by-table basis, put the new template in F<beer/I<table>>.
+
+This will automatically give you C<add>, C<edit>, C<list>, C<view> and C<delete>
+commands; for instance, to see a list of breweries, go to
+
+ http://your.site/beer/brewery/list
+
+For more information about how the system works and how to extend it,
+see L<Maypole>.
+
+=head1 Implementation
+
+This class overrides a set of methods in the base Maypole class to provide its
+functionality. See L<Maypole> for these:
+
+=over
+
+=item get_request
+
+=cut
+
+sub get_request {
+ my ($self, $r) = @_;
+ my $ar;
+ if ($MODPERL2) {
+ $ar = eval {require Apache2::Request} ? Apache2::Request->new($r) : $r;
+ }
+ else { $ar = Apache::Request->instance($r); }
+ $self->ar($ar);
}
-sub set_database {
- my ($calling_class, $dsn) = @_;
- $calling_class = ref $calling_class if ref $calling_class;
- my $config = $calling_class->config;
- $config->{model} ||= "Apache::MVC::Model::CDBI";
- $config->{model}->require;
- $config->{dsn} = $dsn;
- $config->{loader} = Class::DBI::Loader->new(
- namespace => $calling_class,
- dsn => $dsn
- );
- $config->{classes} = [ $config->{loader}->classes ];
- for my $subclass (@{$config->{classes}}) {
- no strict 'refs';
- unshift @{$subclass."::ISA"}, $config->{model};
- $config->{model}->adopt($subclass)
- if $config->{model}->can("adopt");
+=item warn
+
+=cut
+
+sub warn {
+ my ($self,@args) = @_;
+ my ($package, $line) = (caller)[0,2];
+ my $ar = $self->parent ? $self->parent->{ar} : $self->{ar};
+ if ( $args[0] and ref $self ) {
+ $ar->warn("[$package line $line] ", @args) ;
+ } else {
+ print "warn called by ", caller, " with ", @_, "\n";
+ }
+ return;
+}
+
+
+=item parse_location
+
+=cut
+
+sub parse_location {
+ my $self = shift;
+
+ # Reconstruct the request headers
+ $self->headers_in(Maypole::Headers->new);
+
+ my %headers;
+ if ($MODPERL2) { %headers = %{$self->ar->headers_in};
+ } else { %headers = $self->ar->headers_in; }
+ for (keys %headers) {
+ $self->headers_in->set($_, $headers{$_});
}
+
+ $self->preprocess_location();
+
+ my $path = $self->ar->uri;
+ my $base = URI->new($self->config->uri_base);
+ my $loc = $base->path;
+
+ {
+ no warnings 'uninitialized';
+ $path .= '/' if $path eq $loc;
+ if ($loc =~ /\/$/) {
+ $path =~ s/^($loc)?//;
+ } else {
+ $path =~ s/^($loc)?\///;
+ }
+ }
+
+ $self->path($path);
+ $self->parse_path;
+ $self->parse_args;
}
-sub init {
- my $class = shift;
- my $config = $class->config;
- $config->{view} ||= "Apache::MVC::View::TT";
- $config->{view}->require;
- $config->{display_tables} ||= [ $class->config->{loader}->tables ];
- $class->view_object($class->config->{view}->new);
- $class->init_done(1);
+=item parse_args
+=cut
+
+sub parse_args {
+ my $self = shift;
+ $self->params( { $self->_mod_perl_args( $self->ar ) } );
+ $self->query( $self->params );
}
-sub class_of {
- my ($self, $table) = @_;
- return $self->config->{loader}->_table2class($table);
+=item redirect_request
+
+Sets output headers to redirect based on the arguments provided
+
+Accepts either a single argument of the full url to redirect to, or a hash of
+named parameters :
+
+$r->redirect_request('http://www.example.com/path');
+
+or
+
+$r->redirect_request(protocol=>'https', domain=>'www.example.com', path=>'/path/file?arguments', status=>'302', url=>'..');
+
+The named parameters are protocol, domain, path, status and url
+
+Only 1 named parameter is required but other than url, they can be combined as
+required and current values (from the request) will be used in place of any
+missing arguments. The url argument must be a full url including protocol and
+can only be combined with status.
+
+=cut
+
+sub redirect_request {
+ my $r = shift;
+ my $redirect_url = $_[0];
+ my $status = $MODPERL2 ? eval 'Apache2::Const::REDIRECT;' :
+ eval 'Apache::Constants::REDIRECT;'; # why have to eval this?
+ if ($_[1]) {
+ my %args = @_;
+ if ($args{url}) {
+ $redirect_url = $args{url};
+ } else {
+ my $path = $args{path} || $r->path;
+ my $host = $args{domain} || $r->ar->hostname;
+ my $protocol = $args{protocol} || $r->get_protocol;
+
+ $redirect_url = URI->new;
+ $redirect_url->scheme($protocol);
+ $redirect_url->host($host);
+ $redirect_url->path($path);
+ }
+ $status = $args{status} if ($args{status});
+ }
+
+ $r->ar->status($status);
+ $r->ar->headers_out->set('Location' => $redirect_url);
+ return OK;
}
-sub handler {
- # See Apache::MVC::Workflow before trying to understand this.
- my $class = shift;
- $class->init unless $class->init_done;
- my $r = bless { config => $class->config }, $class;
- $r->get_request();
- $r->parse_location();
-
- $r->model_class($r->class_of($r->{table}));
- my $status = $r->is_applicable;
- return $status unless $status == OK;
- $status = $r->call_authenticate;
- return $status unless $status == OK;
- $r->additional_data();
-
- $r->model_class->process($r);
- $r->view_object->process($r);
- return $r; # For debugging.
+
+=item get_protocol
+
+=cut
+
+sub get_protocol {
+ my $self = shift;
+ my $protocol = ( $self->ar->protocol =~ m/https/i ) ? 'https' : 'http' ;
+ return $protocol;
}
-sub get_request {
- my $self = shift;
- require Apache; require Apache::Request;
- $self->{ar} = Apache::Request->new(Apache->request);
+=item send_output
+
+=cut
+
+sub send_output {
+ my $r = shift;
+ $r->ar->content_type(
+ $r->content_type =~ m/^text/
+ ? $r->content_type . "; charset=" . $r->document_encoding
+ : $r->content_type
+ );
+ $r->ar->headers_out->set(
+ "Content-Length" => do { use bytes; length $r->output }
+ );
+
+ foreach ($r->headers_out->field_names) {
+ next if /^Content-(Type|Length)/;
+ $r->ar->headers_out->set($_ => $r->headers_out->get($_));
+ }
+
+ $MODPERL2 || $r->ar->send_http_header;
+ $r->ar->print( $r->output );
}
-sub parse_location {
- my $self = shift;
- my $uri = $self->{ar}->path_info();
- my @pi = split /\//, $uri;
- shift @pi while @pi and !$pi[0];
- $self->{table} = shift @pi;
- $self->{action} = shift @pi;
- $self->{args} = \@pi;
-
- $self->{params} = { $self->{ar}->content };
+=item get_template_root
+
+=cut
+
+sub get_template_root {
+ my $r = shift;
+ $r->ar->document_root . "/" . $r->ar->location;
}
-sub is_applicable {
- my $self = shift;
- my $config = $self->config;
- $config->{ok_tables} = {map {$_ => 1} @{$config->{display_tables}}};
- warn "We don't have that table ($self->{table})"
- unless $config->{ok_tables}{$self->{table}};
- return DECLINED() unless exists $config->{ok_tables}{$self->{table}};
-
- # Does the action method exist?
- # XXX We should set the method class to the class for the table
- my $cv = $self->model_class->can($self->{action});
- warn "We don't have that action ($self->{action})" unless $cv;
- return DECLINED() unless $cv;
-
- # Is it exported?
- $self->{method_attribs} = join " ", attributes::get($cv);
- do { warn "$self->{action} not exported";
- return DECLINED()
- } unless $self->{method_attribs} =~ /\bExported\b/i;
- return OK();
+=back
+
+=cut
+
+#########################################################
+# private / internal methods and subs
+
+
+sub _mod_perl_args {
+ my ( $self, $apr ) = @_;
+ my %args;
+ if ($apr->isa('Apache::Request')) {
+ foreach my $key ( $apr->param ) {
+ my @values = $apr->param($key);
+ $args{$key} = @values == 1 ? $values[0] : \@values;
+ }
+ } else {
+ my $body = $self->_prepare_body($apr);
+ %args = %{$body->param};
+ my $uri = URI->new($self->ar->unparsed_uri);
+ foreach my $key ($uri->query_param) {
+ if (ref $args{$key}) {
+ push (@{$args{$key}}, $uri->query_param($key));
+ } else {
+ if ($args{$key}) {
+ $args{$key} = [ $args{$key}, $uri->query_param($key) ];
+ } else {
+ my @args = $uri->query_param($key);
+ if (scalar @args > 1) {
+ $args{$key} = [ $uri->query_param($key) ];
+ } else {
+ $args{$key} = $uri->query_param($key);
+ }
+ }
+ }
+ }
+ }
+ return %args;
}
-sub call_authenticate {
- my $self = shift;
- return $self->model_class->authenticate($self) if
- $self->model_class->can("authenticate");
- return $self->authenticate();
+sub _prepare_body {
+ my ( $self, $r ) = @_;
+
+ unless ($self->{__http_body}) {
+ my $content_type = $r->headers_in->get('Content-Type');
+ my $content_length = $r->headers_in->get('Content-Length');
+ my $body = HTTP::Body->new( $content_type, $content_length );
+ my $length = $content_length;
+ while ( $length ) {
+ $r->read( my $buffer, ( $length < 8192 ) ? $length : 8192 );
+ $length -= length($buffer);
+ $body->add($buffer);
+ }
+ $self->{__http_body} = $body;
+ }
+ return $self->{__http_body};
}
-sub additional_data {}
-sub authenticate { return OK }
+
+=head1 AUTHOR
+
+Simon Cozens, C<simon@cpan.org>
+
+=head1 CREDITS
+
+Aaron Trevena
+Marcus Ramberg, C<marcus@thefeed.no>
+Sebastian Riedel, C<sri@oook.de>
+
+=head1 LICENSE
+
+You may distribute this code under the same terms as Perl itself.
+
+=cut
1;