Security Advisories (10)
CPANSA-Mojolicious-2022-03 (2022-12-10)

Mojo::DOM did not correctly parse <script> tags.

CPANSA-Mojolicious-2021-02 (2021-06-01)

Small sessions could be used as part of a brute-force attack to decode the session secret.

CVE-2021-47208 (2021-03-16)

A bug in format detection can potentially be exploited for a DoS attack.

CVE-2018-25100 (2018-02-13)

Mojo::UserAgent::CookieJar leaks old cookies because of the missing host_only flag on empty domain.

CPANSA-Mojolicious-2015-01 (2015-02-02)

Directory traversal on Windows

CPANSA-Mojolicious-2018-03 (2018-05-19)

Mojo::UserAgent was not checking peer SSL certificates by default.

CVE-2020-36829 (2020-11-10)

Mojo::Util secure_compare can leak the string length. By immediately returning when the two strings are not the same length, the function allows an attacker to guess the length of the secret string using timing attacks.

CPANSA-Mojolicious-2018-02 (2018-05-11)

GET requests with embedded backslashes can be used to access local files on Windows hosts

CPANSA-Mojolicious-2014-01 (2014-10-07)

Context sensitivity of method param could lead to parameter injection attacks.

CVE-2024-58134 (2025-05-03)

Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as a HMAC session secret by default. These predictable default secrets can be exploited to forge session cookies. An attacker who knows or guesses the secret could compute valid HMAC signatures for the session cookie, allowing them to tamper with or hijack another user's session.

NAME

Mojo::Content - HTTP 1.1 content base class

SYNOPSIS

use Mojo::Base 'Mojo::Content';

DESCRIPTION

Mojo::Content is an abstract base class for HTTP 1.1 content as described in RFC 2616.

EVENTS

Mojo::Content can emit the following events.

body

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

Emitted once all headers have been parsed and the body starts. Note that this event is EXPERIMENTAL and might change without warning!

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

read

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

Emitted when a new chunk of content arrives, also disables normal content storage in asset objects.

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

ATTRIBUTES

Mojo::Content implements the following attributes.

auto_relax

my $relax = $content->auto_relax;
$content  = $content->auto_relax(1);

Try to detect broken web servers and turn on relaxed parsing automatically.

headers

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

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

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 MOJO_MAX_LEFTOVER_SIZE or 262144. Note that this attribute is EXPERIMENTAL and might change without warning!

relaxed

my $relaxed = $content->relaxed;
$content    = $content->relaxed(1);

Activate relaxed parsing for HTTP 0.9 and broken web servers.

METHODS

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

body_contains

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

Check if content contains a specific string.

body_size

my $size = $content->body_size;

Content size in bytes.

boundary

my $boundary = $content->boundary;

Extract multipart boundary from content type header. Note that this method is EXPERIMENTAL and might change without warning!

build_body

my $string = $content->build_body;

Render whole body.

build_headers

my $string = $content->build_headers;

Render all headers.

clone

my $clone = $content->clone;

Clone content if possible. Note that this method is EXPERIMENTAL and might change without warning!

generate_body_chunk

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

Generate dynamic content.

get_body_chunk

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

Get a chunk of content starting from a specfic position.

get_header_chunk

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

Get a chunk of the headers starting from a specfic position.

has_leftovers

my $success = $content->has_leftovers;

Check if there are leftovers.

header_size

my $size = $content->header_size;

Size of headers in bytes.

is_chunked

my $success = $content->is_chunked;

Check if content is chunked.

is_dynamic

my $success = $content->is_dynamic;

Check if content will be dynamic. Note that this method is EXPERIMENTAL and might change without warning!

is_finished

my $success = $content->is_finished;

Check if parser is finished.

is_multipart

my $false = $content->is_multipart;

False.

is_parsing_body

my $success = $content->is_parsing_body;

Check if body parsing started yet.

leftovers

my $bytes = $content->leftovers;

Remove leftover data from content parser.

parse

$content = $content->parse("Content-Length: 12\r\n\r\nHello World!");

Parse content chunk.

parse_body

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

Parse body chunk.

parse_body_once

$content = $content->parse_body_once("Hi!");

Parse body chunk once.

parse_until_body

$content = $content->parse_until_body(
  "Content-Length: 12\r\n\r\nHello World!"
);

Parse chunk and stop after headers.

progress

my $size = $content->progress;

Size of content already received from message in bytes. Note that this method is EXPERIMENTAL and might change without warning!

write

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

Write dynamic content non-blocking, the optional drain callback will be invoked once all data has been written.

write_chunk

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

Write dynamic content non-blocking with the chunked transfer encoding, the optional drain callback will be invoked once all data has been written.

SEE ALSO

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