Catalyst::Request - provides information about the current client request

NAME

Catalyst::Request - provides information about the current client request

SYNOPSIS

    $req = $c->request;
    $req->action;
    $req->address;
    $req->arguments;
    $req->args;
    $req->base;
    $req->body;
    $req->body_parameters;
    $req->content_encoding;
    $req->content_length;
    $req->content_type;
    $req->cookie;
    $req->cookies;
    $req->header;
    $req->headers;
    $req->hostname;
    $req->input;
    $req->query_keywords;
    $req->match;
    $req->method;
    $req->param;
    $req->parameters;
    $req->params;
    $req->path;
    $req->protocol;
    $req->query_parameters;
    $req->read;
    $req->referer;
    $req->secure;
    $req->captures; # previously knows as snippets
    $req->upload;
    $req->uploads;
    $req->uri;
    $req->user;
    $req->user_agent;

See also Catalyst, the Catalyst::Request::Upload manpage.

DESCRIPTION

This is the Catalyst Request class, which provides an interface to data for the current client request. The request object is prepared by the Catalyst::Engine manpage, thus hiding the details of the particular engine implementation.

METHODS

$req->action

[DEPRECATED] Returns the name of the requested action.

Use $c->action instead (which returns a Catalyst::Action object).

$req->address

Returns the IP address of the client.

$req->arguments

Returns a reference to an array containing the arguments.

    print $c->request->arguments->[0];

For example, if your action was

    package MyApp::C::Foo;
    sub moose : Local {
        ...
    }

and the URI for the request was http://.../foo/moose/bah, the string bah would be the first and only argument.

$req->args

Shortcut for arguments.

$req->base

Contains the URI base. This will always have a trailing slash.

If your application was queried with the URI http://localhost:3000/some/path then base is http://localhost:3000/.

$req->body

Returns the message body of the request, unless Content-Type is application/x-www-form-urlencoded or multipart/form-data.

$req->body_parameters

Returns a reference to a hash containing body (POST) parameters. Values can be either a scalar or an arrayref containing scalars.

    print $c->request->body_parameters->{field};
    print $c->request->body_parameters->{field}->[0];

These are the parameters from the POST part of the request, if any. 


=head2 $req->body_params

Shortcut for body_parameters.

$req->content_encoding

Shortcut for $req->headers->content_encoding.

$req->content_length

Shortcut for $req->headers->content_length.

$req->content_type

Shortcut for $req->headers->content_type.

$req->cookie

A convenient method to access $req->cookies.

    $cookie  = $c->request->cookie('name');
    @cookies = $c->request->cookie;

$req->cookies

Returns a reference to a hash containing the cookies.

    print $c->request->cookies->{mycookie}->value;

The cookies in the hash are indexed by name, and the values are the CGI::Cookie manpage objects.

$req->header

Shortcut for $req->headers->header.

$req->headers

Returns an the HTTP::Headers manpage object containing the headers for the current request.

    print $c->request->headers->header('X-Catalyst');

$req->hostname

Returns the hostname of the client. 


=cut

sub hostname { my $self = shift;

    if ( @_ == 0 && not $self->{hostname} ) {
        $self->{hostname} =
          gethostbyaddr( inet_aton( $self->address ), AF_INET );
    }
    if ( @_ == 1 ) {
        $self->{hostname} = shift;
    }
    return $self->{hostname};
}

$req->input

Alias for $req->body.

$req->query_keywords

Contains the keywords portion of a query string, when no '=' signs are present.

    http://localhost/path?some+keywords
    
    $c->request->query_keywords will contain 'some keywords'

$req->match

This contains the matching part of a Regex action. Otherwise it returns the same as 'action', except for default actions, which return an empty string.

$req->method

Contains the request method (GET, POST, HEAD, etc).

$req->param

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' );
    @values = $c->request->param( 'foo' );
    @params = $c->request->param;

Like the CGI manpage, and unlike earlier versions of Catalyst, passing multiple arguments to this method, like this:

    $c->request->param( 'foo', 'bar', 'gorch', 'quxx' );

will set the parameter foo to the multiple values bar, gorch and quxx. Previously this would have added bar as another value to foo (creating it if it didn't exist before), and quxx as another value for gorch.

$req->parameters

Returns a reference to a hash containing GET and POST parameters. Values can be either a scalar or an arrayref containing scalars.

    print $c->request->parameters->{field};
    print $c->request->parameters->{field}->[0];

This is the combination of query_parameters and body_parameters.

$req->params

Shortcut for $req->parameters.

$req->path

Returns the path, i.e. the part of the URI after $req->base, for the current request.

$req->path_info

Alias for path, added for compability with the CGI manpage.

$req->protocol

Returns the protocol (HTTP/1.0 or HTTP/1.1) used for the current request.

$req->query_parameters

$req->query_params

Returns a reference to a hash containing query string (GET) parameters. Values can be either a scalar or an arrayref containing scalars.

    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.

$req->referer

Shortcut for $req->headers->referer. Returns the referring page.

$req->secure

Returns true or false, indicating whether the connection is secure (https).

$req->captures

Returns a reference to an array containing regex captures.

    my @captures = @{ $c->request->captures };

$req->snippets

captures used to be called snippets. This is still available for backwoards compatibility, but is considered deprecated.

$req->upload

A convenient method to access $req->uploads.

    $upload  = $c->request->upload('field');
    @uploads = $c->request->upload('field');
    @fields  = $c->request->upload;
    for my $upload ( $c->request->upload('field') ) {
        print $upload->filename;
    }

$req->uploads

Returns a reference to a hash containing uploads. Values can be either a the Catalyst::Request::Upload manpage object, or an arrayref of the Catalyst::Request::Upload manpage objects.

    my $upload = $c->request->uploads->{field};
    my $upload = $c->request->uploads->{field}->[0];

$req->uri

Returns a URI object for the current request. Stringifies to the URI text.

$req->uri_with( { key => 'value' } );

Returns a rewritten URI object for the current request. Key/value pairs passed in will override existing parameters. Unmodified pairs will be preserved.

$req->user

Returns the currently logged in user. Deprecated. The method recommended for newer plugins is $c->user.

$req->user_agent

Shortcut to $req->headers->user_agent. Returns the user agent (browser) version string.

AUTHORS

Sebastian Riedel, sri@cpan.org

Marcus Ramberg, mramberg@cpan.org

COPYRIGHT

This program is free software, you can redistribute it and/or modify it under the same terms as Perl itself.

 Catalyst::Request - provides information about the current client request