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Courriel::Header::ContentType(3pm) User Contributed Perl Documentation Courriel::Header::ContentType(3pm)


Courriel::Header::ContentType - The content type for an email part


version 0.49


    my $ct = $part->content_type();
    print $ct->mime_type();
    print $ct->charset();
    my %attr = $ct->attributes();
    while ( my ( $k, $v ) = each %attr ) {
        print "$k => $v\n";


This class represents the contents of a "Content-Type" header attached to an email part. Such headers always include a mime type, and may also include additional information such as a charset or other attributes.

Here are some typical headers:

  Content-Type: text/plain; charset=utf-8
  Content-Type: multipart/alternative; boundary=abcdefghijk
  Content-Type: image/jpeg; name="Filename.jpg"


This class supports the following methods:

Courriel::Header::ContentType->new_from_value( ... )

This takes two parameters, "name" and "value". The "name" is optional, and defaults to "Content-Type".

The "value" is parsed and split up into the mime type and attributes.

Courriel::Header::ContentType->new( ... )

This method creates a new object. It accepts the following parameters:

  • name

    This defaults to 'Content-Type'.

  • value

    This is the full header value.

  • mime_type

    A string like "text/plain" or "multipart/alternative". This is required.

  • attributes

    A hash reference of attributes from the header, such as a boundary, charset, etc. The keys are attribute names and the values can either be strings or Courriel::HeaderAttribute objects. Values which are strings will be inflated into objects by the constructor.

    This is optional, and can be an empty hash reference or omitted entirely.


The header name, usually "Content-Type".


The raw header value.


Returns the mime type value passed to the constructor. However, this value will be in all lower-case, regardless of the original casing passed to the constructor.


Returns the charset for the content type, which will be the value found in the "attributes", if one exists.


Returns a hash (not a reference) of the attributes passed to the constructor.

Attributes are Courriel::HeaderAttribute objects.

The keys of the hash are all lower case, though the original casing is preserved in the "name()" returned by the Courriel::HeaderAttribute object.


Returns true unless the attachment looks like text data. Currently, this means that is has a charset defined and the charset is not "binary".


Given a key, returns the named Courriel::HeaderAttribute object. Obviously, this value can be "undef" if the attribute doesn't exist. Name lookup is case-insensitive.


Given a key, returns the named attribute's value as a string. Obviously, this value can be "undef" if the attribute doesn't exist. Name lookup is case-insensitive.

The attribute is a Courriel::HeaderAttribute object.


Returns the object as a string suitable for a header value (but not folded). Note that this uses the original casing of the mime type as passed to the constructor.


This class extends Courriel::Header.


This class does the "Courriel::Role::HeaderWithAttributes" role.


Bugs may be submitted at <>.

I am also usually active on IRC as 'autarch' on "irc://".


The source code repository for Courriel can be found at <>.


Dave Rolsky <>


This software is Copyright (c) 2021 by Dave Rolsky.

This is free software, licensed under:

  The Artistic License 2.0 (GPL Compatible)

The full text of the license can be found in the LICENSE file included with this distribution.

2021-08-22 perl v5.32.1