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Mojolicious-2.53
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/ Mojo::Message

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 MOJO_MAX_MESSAGE_SIZE 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.