++ed by:
RHAEN SZABGAB DAVIDO MARIOROY STEVENL

119 PAUSE users
152 non-PAUSE users.

Dan Book
and 1 contributors

NAME

Mojo::Content - HTTP content base class

SYNOPSIS

  package Mojo::Content::MyContent;
  use Mojo::Base 'Mojo::Content';

  sub body_contains  {...}
  sub body_size      {...}
  sub get_body_chunk {...}

DESCRIPTION

Mojo::Content is an abstract base class for HTTP content containers based on RFC 7230 and RFC 7231, like Mojo::Content::MultiPart and Mojo::Content::Single.

EVENTS

Mojo::Content inherits all events from Mojo::EventEmitter and can emit the following new ones.

body

  $content->on(body => sub {
    my $content = shift;
    ...
  });

Emitted once all headers have been parsed and the body starts.

  $content->on(body => sub {
    my $content = shift;
    $content->auto_upgrade(0) if $content->headers->header('X-No-MultiPart');
  });

drain

  $content->on(drain => sub {
    my ($content, $offset) = @_;
    ...
  });

Emitted once all data has been written.

  $content->on(drain => sub {
    my $content = shift;
    $content->write_chunk(time);
  });

read

  $content->on(read => sub {
    my ($content, $bytes) = @_;
    ...
  });

Emitted when a new chunk of content arrives.

  $content->unsubscribe('read');
  $content->on(read => sub {
    my ($content, $bytes) = @_;
    say "Streaming: $bytes";
  });

ATTRIBUTES

Mojo::Content implements the following attributes.

auto_decompress

  my $bool = $content->auto_decompress;
  $content = $content->auto_decompress($bool);

Decompress content automatically if "is_compressed" is true.

auto_relax

  my $bool = $content->auto_relax;
  $content = $content->auto_relax($bool);

Try to detect when relaxed parsing is necessary.

expect_close

  my $bool = $content->expect_close;
  $content = $content->expect_close($bool);

Expect a response that is terminated with a connection close.

headers

  my $headers = $content->headers;
  $content    = $content->headers(Mojo::Headers->new);

Content headers, defaults to a Mojo::Headers object.

max_buffer_size

  my $size = $content->max_buffer_size;
  $content = $content->max_buffer_size(1024);

Maximum size in bytes of buffer for content parser, defaults to the value of the MOJO_MAX_BUFFER_SIZE environment variable or 262144 (256KB).

max_leftover_size

  my $size = $content->max_leftover_size;
  $content = $content->max_leftover_size(1024);

Maximum size in bytes of buffer for pipelined HTTP requests, defaults to the value of the MOJO_MAX_LEFTOVER_SIZE environment variable or 262144 (256KB).

relaxed

  my $bool = $content->relaxed;
  $content = $content->relaxed($bool);

Activate relaxed parsing for responses that are terminated with a connection close.

skip_body

  my $bool = $content->skip_body;
  $content = $content->skip_body($bool);

Skip body parsing and finish after headers.

METHODS

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

body_contains

  my $bool = $content->body_contains('foo bar baz');

Check if content contains a specific string. Meant to be overloaded in a subclass.

body_size

  my $size = $content->body_size;

Content size in bytes. Meant to be overloaded in a subclass.

boundary

  my $boundary = $content->boundary;

Extract multipart boundary from Content-Type header.

charset

  my $charset = $content->charset;

Extract charset from Content-Type header.

clone

  my $clone = $content->clone;

Clone content if possible, otherwise return undef.

generate_body_chunk

  my $bytes = $content->generate_body_chunk(0);

Generate dynamic content.

get_body_chunk

  my $bytes = $content->get_body_chunk(0);

Get a chunk of content starting from a specific position. Meant to be overloaded in a subclass.

get_header_chunk

  my $bytes = $content->get_header_chunk(13);

Get a chunk of the headers starting from a specific position. Note that this method finalizes the content.

header_size

  my $size = $content->header_size;

Size of headers in bytes. Note that this method finalizes the content.

headers_contain

  my $bool = $content->headers_contain('foo bar baz');

Check if headers contain a specific string. Note that this method finalizes the content.

is_chunked

  my $bool = $content->is_chunked;

Check if content is chunked.

is_compressed

  my $bool = $content->is_compressed;

Check if content is gzip compressed.

is_dynamic

  my $bool = $content->is_dynamic;

Check if content will be dynamically generated, which prevents "clone" from working.

is_finished

  my $bool = $content->is_finished;

Check if parser is finished.

is_limit_exceeded

  my $bool = $content->is_limit_exceeded;

Check if buffer has exceeded "max_buffer_size".

is_multipart

  my $false = $content->is_multipart;

False, this is not a Mojo::Content::MultiPart object.

is_parsing_body

  my $bool = $content->is_parsing_body;

Check if body parsing started yet.

leftovers

  my $bytes = $content->leftovers;

Get leftover data from content parser.

parse

  $content
    = $content->parse("Content-Length: 12\x0d\x0a\x0d\x0aHello World!");

Parse content chunk.

parse_body

  $content = $content->parse_body('Hi!');

Parse body chunk and skip headers.

progress

  my $size = $content->progress;

Size of content already received from message in bytes.

write

  $content = $content->write;
  $content = $content->write('');
  $content = $content->write($bytes);
  $content = $content->write($bytes => sub {...});

Write dynamic content non-blocking, the optional drain callback will be invoked once all data has been written. Calling this method without a chunk of data will finalize the "headers" and allow for dynamic content to be written later. You can write an empty chunk of data at any time to end the stream.

  # Make sure previous chunk of data has been written before continuing
  $content->write('He' => sub {
    my $content = shift;
    $content->write('llo!' => sub {
      my $content = shift;
      $content->write('');
    });
  });

write_chunk

  $content = $content->write_chunk;
  $content = $content->write_chunk('');
  $content = $content->write_chunk($bytes);
  $content = $content->write_chunk($bytes => sub {...});

Write dynamic content non-blocking with chunked transfer encoding, the optional drain callback will be invoked once all data has been written. Calling this method without a chunk of data will finalize the "headers" and allow for dynamic content to be written later. You can write an empty chunk of data at any time to end the stream.

  # Make sure previous chunk of data has been written before continuing
  $content->write_chunk('He' => sub {
    my $content = shift;
    $content->write_chunk('llo!' => sub {
      my $content = shift;
      $content->write_chunk('');
    });
  });

SEE ALSO

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