mimex

func AddExtensionType ¶

func AddExtensionType(ext, typ string) error

AddExtensionType sets the MIME type associated with the extension ext to typ. The extension should begin with a leading dot, as in ".html".

func ContentTypeByExtension ¶

func ContentTypeByExtension(ext string, defaults ...string) string

ContextTypeByExtension returns the MIME type associated with the file extension ext. The extension ext should begin with a leading dot, as in ".html". When ext has no associated type, TypeByExtension returns "".

Extensions are looked up first case-sensitively, then case-insensitively.

The built-in table is small but on unix it is augmented by the local system's MIME-info database or mime.types file(s) if available under one or more of these names:

/usr/local/share/mime/globs2
/usr/share/mime/globs2
/etc/mime.types
/etc/apache2/mime.types
/etc/apache/mime.types

On Windows, MIME types are extracted from the registry.

Text types have the charset parameter set to "utf-8" by default.

func ContentTypeByFilename ¶

func ContentTypeByFilename(filename string, defaults ...string) string

ContextTypeByFilename returns the MIME type associated with the extension of filename.

func ExtensionsByType ¶

func ExtensionsByType(typ string) ([]string, error)

ExtensionsByType returns the extensions known to be associated with the MIME type typ. The returned extensions will each begin with a leading dot, as in ".html". When typ has no associated extensions, ExtensionsByType returns an nil slice.

func MediaTypeByExtension ¶

func MediaTypeByExtension(ext string, defaults ...string) string

MediaTypeByExtension returns the MIME type (no charset) associated with the file extension ext.

func MediaTypeByFilename ¶

func MediaTypeByFilename(filename string, defaults ...string) string

MediaTypeByFilename returns the MIME type (no charset) associated with the extension of filename.

func ParseMediaType ¶

func ParseMediaType(v string) (mediatype string, params map[string]string, err error)

ParseMediaType parses a media type value and any optional parameters, per RFC 1521. Media types are the values in Content-Type and Content-Disposition headers (RFC 2183). On success, ParseMediaType returns the media type converted to lowercase and trimmed of white space and a non-nil map. If there is an error parsing the optional parameter, the media type will be returned along with the error [ErrInvalidMediaParameter]. The returned map, params, maps from the lowercase attribute to the attribute value with its case preserved.