package Catalyst::Request;
-use Class::C3;
use IO::Socket qw[AF_INET inet_aton];
use Carp;
use utf8;
use Moose;
+use namespace::clean -except => 'meta';
+
+with 'MooseX::Emulate::Class::Accessor::Fast';
+
+has env => (is => 'ro', writer => '_set_env');
+# XXX Deprecated crap here - warn?
has action => (is => 'rw');
+# XXX: Deprecated in docs ages ago (2006), deprecated with warning in 5.8000 due
+# to confusion between Engines and Plugin::Authentication. Remove in 5.8100?
+has user => (is => 'rw');
+sub snippets { shift->captures(@_) }
+
+has _read_position => (
+ # FIXME: work around Moose bug RT#75367
+ # init_arg => undef,
+ is => 'ro',
+ writer => '_set_read_position',
+ default => 0,
+);
+has _read_length => (
+ # FIXME: work around Moose bug RT#75367
+ # init_arg => undef,
+ is => 'ro',
+ default => sub {
+ my $self = shift;
+ $self->header('Content-Length') || 0;
+ },
+ lazy => 1,
+);
+
has address => (is => 'rw');
has arguments => (is => 'rw', default => sub { [] });
-has cookies => (is => 'rw', default => sub { {} });
+has cookies => (is => 'ro', builder => 'prepare_cookies', lazy => 1);
+
+sub prepare_cookies {
+ my ( $self ) = @_;
+
+ if ( my $header = $self->header('Cookie') ) {
+ return { CGI::Simple::Cookie->parse($header) };
+ }
+ {};
+}
+
has query_keywords => (is => 'rw');
has match => (is => 'rw');
has method => (is => 'rw');
has query_parameters => (is => 'rw', default => sub { {} });
has secure => (is => 'rw', default => 0);
has captures => (is => 'rw', default => sub { [] });
-has uri => (is => 'rw');
-has user => (is => 'rw');
+has uri => (is => 'rw', predicate => 'has_uri');
+has remote_user => (is => 'rw');
has headers => (
is => 'rw',
isa => 'HTTP::Headers',
handles => [qw(content_encoding content_length content_type header referer user_agent)],
- default => sub { HTTP::Headers->new() },
- required => 1,
+ builder => 'prepare_headers',
lazy => 1,
);
-#Moose ToDo:
-#can we lose the before modifiers which just call prepare_body ?
-#they are wasteful, slow us down and feel cluttery.
-# Can we call prepare_body at BUILD time?
-# Can we make _body an attribute and have the rest of these lazy build from there?
+sub prepare_headers {
+ my ($self) = @_;
-has _context => (
- is => 'rw',
- weak_ref => 1,
- handles => ['read'],
+ my $env = $self->env;
+ my $headers = HTTP::Headers->new();
+
+ for my $header (keys %{ $env }) {
+ next unless $header =~ /^(HTTP|CONTENT|COOKIE)/i;
+ (my $field = $header) =~ s/^HTTPS?_//;
+ $field =~ tr/_/-/;
+ $headers->header($field => $env->{$header});
+ }
+ return $headers;
+}
+
+has _log => (
+ is => 'ro',
+ weak_ref => 1,
+ required => 1,
);
+has io_fh => (
+ is=>'ro',
+ predicate=>'has_io_fh',
+ lazy=>1,
+ builder=>'_build_io_fh');
+
+sub _build_io_fh {
+ my $self = shift;
+ return $self->env->{'psgix.io'}
+ || die "Your Server does not support psgix.io";
+};
+
+has body_fh => (
+ is=>'ro',
+ predicate=>'has_body_fh',
+ lazy=>1,
+ builder=>'_build_body_fh');
+
+sub _build_body_fh {
+ (my $input_fh = shift->env->{'psgi.input'})->seek(0, 0);
+ return $input_fh;
+};
+
+# Amount of data to read from input on each pass
+our $CHUNKSIZE = 64 * 1024;
+
+sub read {
+ my ($self, $maxlength) = @_;
+ my $remaining = $self->_read_length - $self->_read_position;
+ $maxlength ||= $CHUNKSIZE;
+
+ # Are we done reading?
+ if ( $remaining <= 0 ) {
+ return;
+ }
+
+ my $readlen = ( $remaining > $maxlength ) ? $maxlength : $remaining;
+ my $rc = $self->read_chunk( my $buffer, $readlen );
+ if ( defined $rc ) {
+ if (0 == $rc) { # Nothing more to read even though Content-Length
+ # said there should be.
+ return;
+ }
+ $self->_set_read_position( $self->_read_position + $rc );
+ return $buffer;
+ }
+ else {
+ Catalyst::Exception->throw(
+ message => "Unknown error reading input: $!" );
+ }
+}
+
+sub read_chunk {
+ my $self = shift;
+ return $self->env->{'psgi.input'}->read(@_);
+}
+
has body_parameters => (
is => 'rw',
required => 1,
lazy => 1,
- default => sub { {} },
+ builder => 'prepare_body_parameters',
);
-before body_parameters => sub {
- my ($self) = @_;
- $self->_context->prepare_body();
-};
-
has uploads => (
is => 'rw',
required => 1,
- lazy => 1,
default => sub { {} },
);
-# modifier was a noop (groditi)
-# before uploads => sub {
-# my ($self) = @_;
-# #$self->_context->prepare_body;
-# };
-
has parameters => (
- is => 'rw',
- required => 1,
- lazy => 1,
- default => sub { {} },
+ is => 'rw',
+ lazy => 1,
+ builder => '_build_parameters',
+ clearer => '_clear_parameters',
+);
+
+# TODO:
+# - Can we lose the before modifiers which just call prepare_body ?
+# they are wasteful, slow us down and feel cluttery.
+
+# Can we make _body an attribute, have the rest of
+# these lazy build from there and kill all the direct hash access
+# in Catalyst.pm and Engine.pm?
+
+sub prepare_parameters {
+ my ( $self ) = @_;
+ $self->_clear_parameters;
+ return $self->parameters;
+}
+
+
+
+sub _build_parameters {
+ my ( $self ) = @_;
+ my $parameters = {};
+ my $body_parameters = $self->body_parameters;
+ my $query_parameters = $self->query_parameters;
+ # We copy, no references
+ foreach my $name (keys %$query_parameters) {
+ my $param = $query_parameters->{$name};
+ $parameters->{$name} = ref $param eq 'ARRAY' ? [ @$param ] : $param;
+ }
+
+ # Merge query and body parameters
+ foreach my $name (keys %$body_parameters) {
+ my $param = $body_parameters->{$name};
+ my @values = ref $param eq 'ARRAY' ? @$param : ($param);
+ if ( my $existing = $parameters->{$name} ) {
+ unshift(@values, (ref $existing eq 'ARRAY' ? @$existing : $existing));
+ }
+ $parameters->{$name} = @values > 1 ? \@values : $values[0];
+ }
+ $parameters;
+}
+
+has _uploadtmp => (
+ is => 'ro',
+ predicate => '_has_uploadtmp',
);
-before parameters => sub {
- my ($self, $params) = @_;
- #$self->_context->prepare_body();
- if ( $params && !ref $params ) {
- $self->_context->log->warn(
- "Attempt to retrieve '$params' with req->params(), " .
- "you probably meant to call req->param('$params')" );
- $params = undef;
- }
+sub prepare_body {
+ my ( $self ) = @_;
+
+ if ( my $length = $self->_read_length ) {
+ unless ( $self->_body ) {
+ my $type = $self->header('Content-Type');
+ $self->_body(HTTP::Body->new( $type, $length ));
+ $self->_body->cleanup(1); # Make extra sure!
+ $self->_body->tmpdir( $self->_uploadtmp )
+ if $self->_has_uploadtmp;
+ }
+
+ # Check for definedness as you could read '0'
+ while ( defined ( my $buffer = $self->read() ) ) {
+ $self->prepare_body_chunk($buffer);
+ }
+
+ # paranoia against wrong Content-Length header
+ my $remaining = $length - $self->_read_position;
+ if ( $remaining > 0 ) {
+ Catalyst::Exception->throw(
+ "Wrong Content-Length value: $length" );
+ }
+ }
+ else {
+ # Defined but will cause all body code to be skipped
+ $self->_body(0);
+ }
+}
+
+sub prepare_body_chunk {
+ my ( $self, $chunk ) = @_;
+
+ $self->_body->add($chunk);
+}
+
+sub prepare_body_parameters {
+ my ( $self ) = @_;
+
+ $self->prepare_body if ! $self->_has_body;
+ return {} unless $self->_body;
+
+ return $self->_body->param;
+}
+
+sub prepare_connection {
+ my ($self) = @_;
+
+ my $env = $self->env;
+
+ $self->address( $env->{REMOTE_ADDR} );
+ $self->hostname( $env->{REMOTE_HOST} )
+ if exists $env->{REMOTE_HOST};
+ $self->protocol( $env->{SERVER_PROTOCOL} );
+ $self->remote_user( $env->{REMOTE_USER} );
+ $self->method( $env->{REQUEST_METHOD} );
+ $self->secure( $env->{'psgi.url_scheme'} eq 'https' ? 1 : 0 );
+}
+# XXX - FIXME - method is here now, move this crap...
+around parameters => sub {
+ my ($orig, $self, $params) = @_;
+ if ($params) {
+ if ( !ref $params ) {
+ $self->_log->warn(
+ "Attempt to retrieve '$params' with req->params(), " .
+ "you probably meant to call req->param('$params')"
+ );
+ $params = undef;
+ }
+ return $self->$orig($params);
+ }
+ $self->$orig();
};
has base => (
lazy => 1,
default => sub {
my $self = shift;
- return $self->path if $self->uri;
+ return $self->path if $self->has_uri;
},
);
-has body => (
- is => 'rw'
+has _body => (
+ is => 'rw', clearer => '_clear_body', predicate => '_has_body',
);
-
-before body => sub {
- my ($self) = @_;
- $self->_context->prepare_body();
-};
+# Eugh, ugly. Should just be able to rename accessor methods to 'body'
+# and provide a custom reader..
+sub body {
+ my $self = shift;
+ $self->prepare_body unless ! $self->_has_body;
+ croak 'body is a reader' if scalar @_;
+ return blessed $self->_body ? $self->_body->body : $self->_body;
+}
has hostname => (
is => 'rw',
lazy => 1,
default => sub {
my ($self) = @_;
- gethostbyaddr( inet_aton( $self->address ), AF_INET )
+ gethostbyaddr( inet_aton( $self->address ), AF_INET ) || $self->address
},
);
-no Moose;
+has _path => ( is => 'rw', predicate => '_has_path', clearer => '_clear_path' );
sub args { shift->arguments(@_) }
sub body_params { shift->body_parameters(@_) }
sub params { shift->parameters(@_) }
sub query_params { shift->query_parameters(@_) }
sub path_info { shift->path(@_) }
-sub snippets { shift->captures(@_) }
+
+=for stopwords param params
=head1 NAME
=head1 SYNOPSIS
$req = $c->request;
- $req->action;
- $req->address;
+ $req->address eq "127.0.0.1";
$req->arguments;
$req->args;
$req->base;
$req->read;
$req->referer;
$req->secure;
- $req->captures; # previously knows as snippets
+ $req->captures;
$req->upload;
$req->uploads;
$req->uri;
=head1 METHODS
-=head2 $req->action
-
-[DEPRECATED] Returns the name of the requested action.
-
-
-Use C<< $c->action >> instead (which returns a
-L<Catalyst::Action|Catalyst::Action> object).
-
=head2 $req->address
Returns the IP address of the client.
For example, if your action was
- package MyApp::C::Foo;
+ package MyApp::Controller::Foo;
sub moose : Local {
...
and the URI for the request was C<http://.../foo/moose/bah>, the string C<bah>
would be the first and only argument.
+Arguments get automatically URI-unescaped for you.
+
=head2 $req->args
-Shortcut for arguments.
+Shortcut for L</arguments>.
=head2 $req->base
-Contains the URI base. This will always have a trailing slash.
+Contains the URI base. This will always have a trailing slash. Note that the
+URI scheme (e.g., http vs. https) must be determined through heuristics;
+depending on your server configuration, it may be incorrect. See $req->secure
+for more info.
If your application was queried with the URI
C<http://localhost:3000/some/path> then C<base> is C<http://localhost:3000/>.
=head2 $req->body
-Returns the message body of the request, unless Content-Type is
-C<application/x-www-form-urlencoded> or C<multipart/form-data>.
+Returns the message body of the request, as returned by L<HTTP::Body>: a string,
+unless Content-Type is C<application/x-www-form-urlencoded>, C<text/xml>, or
+C<multipart/form-data>, in which case a L<File::Temp> object is returned.
=head2 $req->body_parameters
print $c->request->cookies->{mycookie}->value;
-The cookies in the hash are indexed by name, and the values are L<CGI::Cookie>
+The cookies in the hash are indexed by name, and the values are L<CGI::Simple::Cookie>
objects.
=head2 $req->header
=head2 $req->hostname
-Returns the hostname of the client.
+Returns the hostname of the client. Use C<< $req->uri->host >> to get the hostname of the server.
=head2 $req->input
present.
http://localhost/path?some+keywords
-
+
$c->request->query_keywords will contain 'some keywords'
=head2 $req->match
=head2 $req->param
-Returns GET and POST parameters with a CGI.pm-compatible param method. This
+Returns GET and POST parameters with a CGI.pm-compatible param method. This
is an alternative method for accessing parameters in $c->req->parameters.
$value = $c->request->param( 'foo' );
(creating it if it didn't exist before), and C<quxx> as another value for
C<gorch>.
+B<NOTE> this is considered a legacy interface and care should be taken when
+using it. C<< scalar $c->req->param( 'foo' ) >> will return only the first
+C<foo> param even if multiple are present; C<< $c->req->param( 'foo' ) >> will
+return a list of as many are present, which can have unexpected consequences
+when writing code of the form:
+
+ $foo->bar(
+ a => 'b',
+ baz => $c->req->param( 'baz' ),
+ );
+
+If multiple C<baz> parameters are provided this code might corrupt data or
+cause a hash initialization error. For a more straightforward interface see
+C<< $c->req->parameters >>.
+
=cut
sub param {
Returns the path, i.e. the part of the URI after $req->base, for the current request.
+ http://localhost/path/foo
+
+ $c->request->path will contain 'path/foo'
+
=head2 $req->path_info
-Alias for path, added for compability with L<CGI>.
+Alias for path, added for compatibility with L<CGI>.
=cut
if (@params) {
$self->uri->path(@params);
- undef $self->{path};
+ $self->_clear_path;
}
- elsif ( defined( my $path = $self->{path} ) ) {
- return $path;
+ elsif ( $self->_has_path ) {
+ return $self->_path;
}
else {
my $path = $self->uri->path;
my $location = $self->base->path;
$path =~ s/^(\Q$location\E)?//;
$path =~ s/^\///;
- $self->{path} = $path;
+ $self->_path($path);
return $path;
}
print $c->request->query_parameters->{field};
print $c->request->query_parameters->{field}->[0];
-
+
=head2 $req->read( [$maxlength] )
Reads a chunk of data from the request body. This method is intended to be
used in a while loop, reading $maxlength bytes on every call. $maxlength
defaults to the size of the request if not specified.
-You have to set MyApp->config->{parse_on_demand} to use this directly.
+=head2 $req->read_chunk(\$buff, $max)
+
+Reads a chunk.
+
+You have to set MyApp->config(parse_on_demand => 1) to use this directly.
=head2 $req->referer
=head2 $req->secure
-Returns true or false, indicating whether the connection is secure (https).
+Returns true or false, indicating whether the connection is secure
+(https). The reliability of $req->secure may depend on your server
+configuration; Catalyst relies on PSGI to determine whether or not a
+request is secure (Catalyst looks at psgi.url_scheme), and different
+PSGI servers may make this determination in different ways (as by
+directly passing along information from the server, interpreting any of
+several HTTP headers, or using heuristics of their own).
=head2 $req->captures
-Returns a reference to an array containing regex captures.
+Returns a reference to an array containing captured args from chained
+actions or regex captures.
my @captures = @{ $c->request->captures };
-=head2 $req->snippets
-
-C<captures> used to be called snippets. This is still available for backwoards
-compatibility, but is considered deprecated.
-
=head2 $req->upload
A convenient method to access $req->uploads.
=head2 $req->uploads
Returns a reference to a hash containing uploads. Values can be either a
-L<Catalyst::Request::Upload> object, or an arrayref of
+L<Catalyst::Request::Upload> object, or an arrayref of
L<Catalyst::Request::Upload> objects.
my $upload = $c->request->uploads->{field};
=head2 $req->uri
-Returns a URI object for the current request. Stringifies to the URI text.
+Returns a L<URI> object for the current request. Stringifies to the URI text.
-=head2 $req->uri_with( { key => 'value' } );
+=head2 $req->mangle_params( { key => 'value' }, $appendmode);
-Returns a rewritten URI object for the current request. Key/value pairs
-passed in will override existing parameters. Unmodified pairs will be
-preserved.
+Returns a hashref of parameters stemming from the current request's params,
+plus the ones supplied. Keys for which no current param exists will be
+added, keys with undefined values will be removed and keys with existing
+params will be replaced. Note that you can supply a true value as the final
+argument to change behavior with regards to existing parameters, appending
+values rather than replacing them.
+
+A quick example:
+
+ # URI query params foo=1
+ my $hashref = $req->mangle_params({ foo => 2 });
+ # Result is query params of foo=2
+
+versus append mode:
+
+ # URI query params foo=1
+ my $hashref = $req->mangle_params({ foo => 2 }, 1);
+ # Result is query params of foo=1&foo=2
+
+This is the code behind C<uri_with>.
=cut
-sub uri_with {
- my( $self, $args ) = @_;
-
- carp( 'No arguments passed to uri_with()' ) unless $args;
+sub mangle_params {
+ my ($self, $args, $append) = @_;
+
+ carp('No arguments passed to mangle_params()') unless $args;
- for my $value ( values %$args ) {
+ foreach my $value ( values %$args ) {
next unless defined $value;
for ( ref $value eq 'ARRAY' ? @$value : $value ) {
$_ = "$_";
utf8::encode( $_ ) if utf8::is_utf8($_);
}
};
-
+
+ my %params = %{ $self->uri->query_form_hash };
+ foreach my $key (keys %{ $args }) {
+ my $val = $args->{$key};
+ if(defined($val)) {
+
+ if($append && exists($params{$key})) {
+
+ # This little bit of heaven handles appending a new value onto
+ # an existing one regardless if the existing value is an array
+ # or not, and regardless if the new value is an array or not
+ $params{$key} = [
+ ref($params{$key}) eq 'ARRAY' ? @{ $params{$key} } : $params{$key},
+ ref($val) eq 'ARRAY' ? @{ $val } : $val
+ ];
+
+ } else {
+ $params{$key} = $val;
+ }
+ } else {
+
+ # If the param wasn't defined then we delete it.
+ delete($params{$key});
+ }
+ }
+
+
+ return \%params;
+}
+
+=head2 $req->uri_with( { key => 'value' } );
+
+Returns a rewritten URI object for the current request. Key/value pairs
+passed in will override existing parameters. You can remove an existing
+parameter by passing in an undef value. Unmodified pairs will be
+preserved.
+
+You may also pass an optional second parameter that puts C<uri_with> into
+append mode:
+
+ $req->uri_with( { key => 'value' }, { mode => 'append' } );
+
+See C<mangle_params> for an explanation of this behavior.
+
+=cut
+
+sub uri_with {
+ my( $self, $args, $behavior) = @_;
+
+ carp( 'No arguments passed to uri_with()' ) unless $args;
+
+ my $append = 0;
+ if((ref($behavior) eq 'HASH') && defined($behavior->{mode}) && ($behavior->{mode} eq 'append')) {
+ $append = 1;
+ }
+
+ my $params = $self->mangle_params($args, $append);
+
my $uri = $self->uri->clone;
-
- $uri->query_form( {
- %{ $uri->query_form_hash },
- %$args
- } );
+ $uri->query_form($params);
+
return $uri;
}
-=head2 $req->user
+=head2 $req->remote_user
-Returns the currently logged in user. Deprecated. The method recommended for
-newer plugins is $c->user.
+Returns the value of the C<REMOTE_USER> environment variable.
=head2 $req->user_agent
Shortcut to $req->headers->user_agent. Returns the user agent (browser)
version string.
+=head2 $req->io_fh
+
+Returns a psgix.io bidirectional socket, if your server supports one. Used for
+when you want to jailbreak out of PSGI and handle bidirectional client server
+communication manually, such as when you are using cometd or websockets.
+
+=head1 SETUP METHODS
+
+You should never need to call these yourself in application code,
+however they are useful if extending Catalyst by applying a request role.
+
+=head2 $self->prepare_headers()
+
+Sets up the C<< $res->headers >> accessor.
+
+=head2 $self->prepare_body()
+
+Sets up the body using L<HTTP::Body>
+
+=head2 $self->prepare_body_chunk()
+
+Add a chunk to the request body.
+
+=head2 $self->prepare_body_parameters()
+
+Sets up parameters from body.
+
+=head2 $self->prepare_cookies()
+
+Parse cookies from header. Sets up a L<CGI::Simple::Cookie> object.
+
+=head2 $self->prepare_connection()
+
+Sets up various fields in the request like the local and remote addresses,
+request method, hostname requested etc.
+
+=head2 $self->prepare_parameters()
+
+Ensures that the body has been parsed, then builds the parameters, which are
+combined from those in the request and those in the body.
+
+If parameters have already been set will clear the parameters and build them again.
+
+
=head2 meta
Provided by Moose
=head1 AUTHORS
-Sebastian Riedel, C<sri@cpan.org>
-
-Marcus Ramberg, C<mramberg@cpan.org>
+Catalyst Contributors, see Catalyst.pm
=head1 COPYRIGHT
-This program is free software, you can redistribute it and/or modify
+This library is free software. You can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
projects / catagits/Catalyst-Runtime.git / blobdiff