NAME

Mojo::Message - HTTP 1.1 message base class

SYNOPSIS

use Mojo::Base 'Mojo::Message';

DESCRIPTION

Mojo::Message is an abstract base class for HTTP 1.1 messages as described in RFC 2616 and RFC 2388.

EVENTS

Mojo::Message can emit the following events.

finish

$message->on(finish => sub {
  my $message = shift;
  ...
});

Emitted after message building or parsing is finished.

my $before = time;
$message->on(finish => sub {
  my $message = shift;
  $message->headers->header('X-Parser-Time' => time - $before);
});

progress

$message->on(progress => sub {
  my $message = shift;
  ...
});

Emitted when message building or parsing makes progress.

$message->on(progress => sub {
  my $message = shift;
  return unless my $len = $message->headers->content_length;
  my $size = $message->content->progress;
  say 'Progress: ', $size == $len ? 100 : int($size / ($len / 100)), '%';
});

ATTRIBUTES

Mojo::Message implements the following attributes.

content

my $message = $message->content;
$message    = $message->content(Mojo::Content::Single->new);

Content container, defaults to a Mojo::Content::Single object.

default_charset

my $charset = $message->default_charset;
$message    = $message->default_charset('UTF-8');

Default charset used for form data parsing, defaults to UTF-8.

dom_class

my $class = $message->dom_class;
$message  = $message->dom_class('Mojo::DOM');

Class to be used for DOM manipulation with the dom method, defaults to Mojo::DOM.

json_class

my $class = $message->json_class;
$message  = $message->json_class('Mojo::JSON');

Class to be used for JSON deserialization with the json method, defaults to Mojo::JSON.

max_message_size

my $size = $message->max_message_size;
$message = $message->max_message_size(1024);

Maximum message size in bytes, defaults to the value of the MOJO_MAX_MESSAGE_SIZE environment variable or 5242880.

version

my $version = $message->version;
$message    = $message->version('1.1');

HTTP version of message.

METHODS

Mojo::Message inherits all methods from Mojo::EventEmitter and implements the following new ones.

at_least_version

my $success = $message->at_least_version('1.1');

Check if message is at least a specific version.

body

my $string = $message->body;
$message   = $message->body('Hello!');
my $cb     = $message->body(sub {...});

Access content data or replace all subscribers of the read event.

$message->body(sub {
  my ($message, $chunk) = @_;
  say "Streaming: $chunk";
});

body_params

my $params = $message->body_params;

POST parameters, usually a Mojo::Parameters object.

say $message->body_params->param('foo');

body_size

my $size = $message->body_size;

Alias for "body_size" in Mojo::Content.

build_body

my $string = $message->build_body;

Render whole body.

build_headers

my $string = $message->build_headers;

Render all headers.

build_start_line

my $string = $message->build_start_line;

Render start line.

my $cookie  = $message->cookie('foo');
my @cookies = $message->cookie('foo');

Access message cookies, usually Mojo::Cookie::Request or Mojo::Cookie::Response objects.

say $message->cookie('foo')->value;

dom

my $dom        = $message->dom;
my $collection = $message->dom('a[href]');

Turns content into a Mojo::DOM object and takes an optional selector to perform a find on it right away, which returns a collection.

# Perform "find" right away
$message->dom('h1, h2, h3')->each(sub { say $_->text });

# Use everything else Mojo::DOM has to offer
say $message->dom->at('title')->text;
$message->dom->html->body->children->each(sub { say $_->type });

error

my $message          = $message->error;
my ($message, $code) = $message->error;
$message             = $message->error('Parser error.');
$message             = $message->error('Parser error.', 500);

Parser errors and codes.

fix_headers

$message = $message->fix_headers;

Make sure message has all required headers for the current HTTP version.

get_body_chunk

my $string = $message->get_body_chunk($offset);

Get a chunk of body data starting from a specific position.

get_header_chunk

my $string = $message->get_header_chunk($offset);

Get a chunk of header data, starting from a specific position.

get_start_line_chunk

my $string = $message->get_start_line_chunk($offset);

Get a chunk of start line data starting from a specific position.

has_leftovers

my $success = $message->has_leftovers;

Alias for "has_leftovers" in Mojo::Content.

header_size

my $size = $message->header_size;

Size of headers in bytes.

headers

my $headers = $message->headers;

Alias for "headers" in Mojo::Content.

say $message->headers->content_type;

is_chunked

my $success = $message->is_chunked;

Alias for "is_chunked" in Mojo::Content.

is_dynamic

my $success = $message->is_dynamic;

Alias for "is_dynamic" in Mojo::Content. Note that this method is EXPERIMENTAL and might change without warning!

is_finished

my $success = $message->is_finished;

Check if parser is finished.

is_limit_exceeded

my $success = $message->is_limit_exceeded;

Check if message has exceeded max_line_size or max_message_size. Note that this method is EXPERIMENTAL and might change without warning!

is_multipart

my $success = $message->is_multipart;

Alias for "is_multipart" in Mojo::Content.

json

my $object = $message->json;
my $array  = $message->json;
my $value  = $message->json('/foo/bar');

Decode JSON message body directly using Mojo::JSON if possible, returns undef otherwise. An optional JSON Pointer can be used to extract a specific value with Mojo::JSON::Pointer.

say $message->json->{foo}->{bar}->[23];
say $message->json('/foo/bar/23');

leftovers

my $bytes = $message->leftovers;

Alias for "leftovers" in Mojo::Content.

max_line_size

$message->max_line_size(1024);

Alias for "max_line_size" in Mojo::Headers. Note that this method is EXPERIMENTAL and might change without warning!

param

my $param  = $message->param('foo');
my @params = $message->param('foo');

Access GET and POST parameters.

parse

$message = $message->parse('HTTP/1.1 200 OK...');

Parse message chunk.

parse_until_body

$message = $message->parse_until_body('HTTP/1.1 200 OK...');

Parse message chunk until the body is reached.

start_line_size

my $size = $message->start_line_size;

Size of the start line in bytes.

to_string

my $string = $message->to_string;

Render whole message.

upload

my $upload  = $message->upload('foo');
my @uploads = $message->upload('foo');

Access multipart/form-data file uploads, usually Mojo::Upload objects.

say $message->upload('foo')->asset->slurp;

uploads

my $uploads = $message->uploads;

All multipart/form-data file uploads, usually Mojo::Upload objects.

say $message->uploads->[2]->filename;

write

$message->write('Hello!');
$message->write('Hello!', sub {...});

Alias for "write" in Mojo::Content.

write_chunk

$message->write_chunk('Hello!');
$message->write_chunk('Hello!', sub {...});

Alias for "write_headers" in Mojo::Content.

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicio.us.