.\" -*- mode: troff; coding: utf-8 -*- .\" Automatically generated by Pod::Man 5.0102 (Pod::Simple 3.45) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. .ie n \{\ . ds C` "" . ds C' "" 'br\} .el\{\ . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" ======================================================================== .\" .IX Title "LWP::MediaTypes 3" .TH LWP::MediaTypes 3 2024-09-01 "perl v5.40.0" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH NAME LWP::MediaTypes \- guess media type for a file or a URL .SH SYNOPSIS .IX Header "SYNOPSIS" .Vb 2 \& use LWP::MediaTypes qw(guess_media_type); \& $type = guess_media_type("/tmp/foo.gif"); .Ve .SH DESCRIPTION .IX Header "DESCRIPTION" This module provides functions for handling media (also known as MIME) types and encodings. The mapping from file extensions to media types is defined by the \fImedia.types\fR file. If the \fI~/.media.types\fR file exists it is used instead. For backwards compatibility we will also look for \fI~/.mime.types\fR. .PP The following functions are exported by default: .ie n .IP "guess_media_type( $filename )" 4 .el .IP "guess_media_type( \f(CW$filename\fR )" 4 .IX Item "guess_media_type( $filename )" .PD 0 .ie n .IP "guess_media_type( $uri )" 4 .el .IP "guess_media_type( \f(CW$uri\fR )" 4 .IX Item "guess_media_type( $uri )" .ie n .IP "guess_media_type( $filename_or_object, $header_to_modify )" 4 .el .IP "guess_media_type( \f(CW$filename_or_object\fR, \f(CW$header_to_modify\fR )" 4 .IX Item "guess_media_type( $filename_or_object, $header_to_modify )" .PD This function tries to guess media type and encoding for a file or objects that support the a \f(CW\*(C`path\*(C'\fR or \f(CW\*(C`filename\*(C'\fR method, eg, URI or File::Temp objects. When an object does not support either method, it will be stringified to determine the filename. It returns the content type, which is a string like \f(CW"text/html"\fR. In array context it also returns any content encodings applied (in the order used to encode the file). You can pass a URI object reference, instead of the file name. .Sp If the type can not be deduced from looking at the file name, then \fBguess_media_type()\fR will let the \f(CW\*(C`\-T\*(C'\fR Perl operator take a look. If this works (and \f(CW\*(C`\-T\*(C'\fR returns a TRUE value) then we return \&\fItext/plain\fR as the type, otherwise we return \&\fIapplication/octet\-stream\fR as the type. .Sp The optional second argument should be a reference to a HTTP::Headers object or any object that implements the \f(CW$obj\fR\->header method in a similar way. When it is present the values of the \&'Content\-Type' and 'Content\-Encoding' will be set for this header. .ie n .IP "media_suffix( $type, ... )" 4 .el .IP "media_suffix( \f(CW$type\fR, ... )" 4 .IX Item "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: .Sp .Vb 2 \& @suffixes = media_suffix(\*(Aqimage/*\*(Aq, \*(Aqaudio/basic\*(Aq); \& $suffix = media_suffix(\*(Aqtext/html\*(Aq); .Ve .PP The following functions are only exported by explicit request: .ie n .IP "add_type( $type, @exts )" 4 .el .IP "add_type( \f(CW$type\fR, \f(CW@exts\fR )" 4 .IX Item "add_type( $type, @exts )" Associate a list of file extensions with the given media type. Example: .Sp .Vb 1 \& add_type("x\-world/x\-vrml" => qw(wrl vrml)); .Ve .ie n .IP "add_encoding( $type, @ext )" 4 .el .IP "add_encoding( \f(CW$type\fR, \f(CW@ext\fR )" 4 .IX Item "add_encoding( $type, @ext )" Associate a list of file extensions with an encoding type. Example: .Sp .Vb 1 \& add_encoding("x\-gzip" => "gz"); .Ve .ie n .IP "read_media_types( @files )" 4 .el .IP "read_media_types( \f(CW@files\fR )" 4 .IX Item "read_media_types( @files )" Parse media types files and add the type mappings found there. Example: .Sp .Vb 1 \& read_media_types("conf/mime.types"); .Ve .SH COPYRIGHT .IX Header "COPYRIGHT" Copyright 1995\-1999 Gisle Aas. .PP This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.