lwp::mediatypes(3)
NAME
LWP::MediaTypes - guess media type for a file or a URL
SYNOPSIS
use LWP::MediaTypes qw(guess_media_type);
$type = guess_media_type("/tmp/foo.gif");
DESCRIPTION
This module provides functions for handling media (also
known as MIME) types and encodings. The mapping from file
extentions to media types is defined by the media.types
file. If the ~/.media.types file exists it is used
instead. For backwards compatability we will also look
for ~/.mime.types.
The following functions are exported by default:
- guess_media_type($filename_or_url, [$header_to_modify])
- This function tries to guess media type and encoding
for a file or url. It returns the content-type, which
is a string like "text/html". In array context it
also returns any content-encodings applied (in the
order used to encode the file). You can pass a URI
object reference, instead of the file name. - If the type can not be deduced from looking at the
file name, then guess_media_type() will let the "-T" Perl operator take a look. If this works (and "-T"
returns a TRUE value) then we return text/plain as the type, otherwise we return application/octet-stream as the type. - The optional second argument should be a reference to
a HTTP::Headers object or any object that implements
the $obj->header method in a similar way. When it is
present the values of the 'Content-Type' and 'Con
tent-Encoding' will be set for this header. - media_suffix($type,...)
- This function will return all suffixes that can be
used to denote the specified media type(s). Wildcard
types can be used. In a scalar context it will return
the first suffix found. - Examples:
@suffixes = media_suffix('image/*', 'audio/basic');
$suffix = media_suffix('text/html'); - The following functions are only exported by explict
request: - add_type($type, @exts)
Associate a list of file extensions with the given
media type.Example:
add_type("x-world/x-vrml" => qw(wrl vrml)); - add_encoding($type, @ext)
- Associate a list of file extensions with an encoding
type. - Example:
add_encoding("x-gzip" => "gz"); - read_media_types(@files)
Parse media types files and add the type mappings
found there.Example:
read_media_types("conf/mime.types");
COPYRIGHT
Copyright 1995-1999 Gisle Aas.
- This library is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.