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/* mimetype.vala
*
* Copyright © 2011 Collabora Ltd.
* By Siegfried-Angel Gevatter Pujals <siegfried@gevatter.com>
* Copyright © 2010 Canonical, Ltd.
* By Mikkel Kamstrup Erlandsen <mikkel.kamstrup@canonical.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
using Zeitgeist;
namespace Zeitgeist
{
/**
* Mime-Type mapping and URI comprehension
*/
private static bool mimetypes_loaded = false;
private static bool schemes_loaded = false;
private static HashTable<string, string>? mimetypes = null;
private static SList<MimeRegex?> mimetypes_regexs;
private static SList<UriScheme?> schemes;
[Compact]
private class MimeRegex
{
public Regex regex;
public string interpretation_uri;
public MimeRegex (string mimetype_regex, string interpretation_uri)
throws RegexError
{
this.regex = new Regex (mimetype_regex, 0, 0);
this.interpretation_uri = interpretation_uri;
}
}
[Compact]
private class UriScheme
{
public string uri_scheme;
public string manifestation_uri;
public UriScheme (string uri_scheme, string manifestation_uri)
{
this.uri_scheme = uri_scheme;
this.manifestation_uri = manifestation_uri;
}
}
/**
* zeitgeist_register_mimetype:
*
* Associate a MIME-type with a given interpretation type. Registered
* MIME-types can be looked up with zeitgeist_interpretation_for_mimetype().
*
* You can register a regular expression as mimetype if instead of this
* function you invoke zeitgeist_register_mimetype_regex().
*
* MIME-types are first looked up by their exact name and then if none is
* found the regular expressions will be checked as fallbacks.
*
* This library will install a wide range a common mimetypes for you, so
* unless you have very specific needs you will normally not have to call
* this function.
*
* @param mimetype A MIME-type string. Eg. //text/plain//
* @param interpretation_uri A URI defining the subject interpretation
* type to associate with "mimetype"
*/
public void register_mimetype (string mimetype, string interpretation_uri)
{
if (mimetypes == null)
mimetypes = new HashTable<string, string>(str_hash, str_equal);
mimetypes.insert (mimetype, interpretation_uri);
}
/**
* zeitgeist_register_mimetype_regex:
*
* Associate a range of MIME-types with a given interpretation type.
* Registered MIME-types can be looked up with
* zeitgeist_interpretation_for_mimetype().
*
* If you only need to register one specific MIME-type, it is more efficient
* to use zeitgeist_register_mimetype() instead of this function.
*
* MIME-types are first looked up by their exact name and then if none is
* found the regular expressions will be checked as fallbacks.
*
* This library will install a wide range a common mimetypes for you, so
* unless you have very specific needs you will normally not have to call
* this function.
*
* @param mimetype_regex A regular expression matching a certain range of
* mimetypes. Eg. //text/.* // to match all //text// subtypes.
* @param interpretation_uri A URI defining the subject interpretation
* type to associate with the matched MIME-types
*/
public void register_mimetype_regex (string mimetype_regex,
string interpretation_uri)
{
try
{
var entry = new MimeRegex (mimetype_regex, interpretation_uri);
mimetypes_regexs.append ((owned) entry);
} catch (RegexError e) {
warning ("Couldn't register mimetype regex: %s", e.message);
}
}
/**
* zeitgeist_interpretation_for_mimetype:
*
* Look up the subject interpretation type associated with @mimetype.
*
* @param mimetype A MIME-type string. Eg. //text/plain//
*
* @return A URI defining the subject interpretation type associated with
* "mimetype" or %NULL in case "mimetype" is unknown
*/
public unowned string? interpretation_for_mimetype (string? mimetype)
{
ensure_mimetypes_loaded ();
if (mimetype == null)
return null;
unowned string? interpretation = mimetypes.lookup (mimetype);
if (interpretation != null)
return interpretation;
foreach (unowned MimeRegex mime_regex in mimetypes_regexs)
{
if (mime_regex.regex.match (mimetype, 0))
return mime_regex.interpretation_uri;
}
return null;
}
/**
* zeitgeist_register_uri_scheme:
*
* Associate a URI scheme with a given subject manifestation type.
* You can find the manifestation type of a given URI by passing it to
* zeitgeist_manifestation_for_uri().
*
* This library will install a range a common URI schemes for you, so unless
* you have very specific needs you will normally not have to call this
* function.
*
* @param uri_scheme A URI scheme such as //http:\/\///
* @param manifestation_type A URI defining the subject manifestation type
* to associate with "uri_scheme"
*/
public void register_uri_scheme (string uri_scheme,
string manifestation_type)
{
var scheme = new UriScheme (uri_scheme, manifestation_type);
schemes.append ((owned) scheme);
}
/**
* zeitgeist_manifestation_for_uri
*
* Look up a subject manifestation type for a given URI. Eg. if you pass in
* //file:\/\/\/tmp/foo.txt// you will get back
* ZEITGEIST_NFO_FILE_DATA_OBJECT.
*
* @param uri An URI
*
* @return A subject manifestation type for @uri or %NULL in case no
* suitable manifestation type is known
*/
public unowned string? manifestation_for_uri (string uri) {
ensure_schemes_loaded ();
foreach (unowned UriScheme scheme in schemes)
{
if (uri.has_prefix (scheme.uri_scheme))
return scheme.manifestation_uri;
}
return null;
}
private static void ensure_mimetypes_loaded ()
{
if (mimetypes_loaded)
return;
register_mimetype ("application/ecmascript", NFO.SOURCE_CODE);
register_mimetype ("application/javascript", NFO.SOURCE_CODE);
register_mimetype ("application/json", NFO.SOURCE_CODE);
register_mimetype ("application/ms-excel", NFO.SPREADSHEET);
register_mimetype ("application/ms-powerpoint", NFO.PRESENTATION);
register_mimetype ("application/msexcel", NFO.SPREADSHEET);
register_mimetype ("application/msword", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/ogg", NFO.AUDIO);
register_mimetype ("application/pdf", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/postscript", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/ps", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/rtf", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/soap+xml", NFO.SOURCE_CODE);
register_mimetype ("application/vnd.corel-draw", NFO.VECTOR_IMAGE);
register_mimetype ("application/vnd.ms-excel", NFO.SPREADSHEET);
register_mimetype ("application/vnd.ms-powerpoint", NFO.PRESENTATION);
register_mimetype ("application/x-7z-compressed", NFO.ARCHIVE);
register_mimetype ("application/x-abiword", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/x-applix-presents", NFO.PRESENTATION);
register_mimetype ("application/x-applix-spreadsheet", NFO.SPREADSHEET);
register_mimetype ("application/x-applix-word", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/x-archive", NFO.ARCHIVE);
register_mimetype ("application/x-bzip", NFO.ARCHIVE);
register_mimetype ("application/x-bzip-compressed-tar", NFO.ARCHIVE);
register_mimetype ("application/x-cd-image", NFO.FILESYSTEM_IMAGE);
register_mimetype ("application/x-compressed-tar", NFO.ARCHIVE);
register_mimetype ("application/x-csh", NFO.SOURCE_CODE);
register_mimetype ("application/x-deb", NFO.SOFTWARE);
register_mimetype ("application/x-designer", NFO.SOURCE_CODE);
register_mimetype ("application/x-desktop", NFO.SOFTWARE);
register_mimetype ("application/x-dia-diagram", NFO.SOURCE_CODE);
register_mimetype ("application/x-executable", NFO.SOFTWARE);
register_mimetype ("application/x-fluid", NFO.SOURCE_CODE);
register_mimetype ("application/x-glade", NFO.SOURCE_CODE);
register_mimetype ("application/x-gnucash", NFO.SPREADSHEET);
register_mimetype ("application/x-gnumeric", NFO.SPREADSHEET);
register_mimetype ("application/x-gzip", NFO.ARCHIVE);
register_mimetype ("application/x-java-archive", NFO.SOURCE_CODE);
register_mimetype ("application/x-javascript", NFO.SOURCE_CODE);
register_mimetype ("application/x-killustrator", NFO.VECTOR_IMAGE);
register_mimetype ("application/x-kpresenter", NFO.PRESENTATION);
register_mimetype ("application/x-kspread", NFO.SPREADSHEET);
register_mimetype ("application/x-kword", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype ("application/x-lzma", NFO.ARCHIVE);
register_mimetype ("application/x-lzma-compressed-tar", NFO.ARCHIVE);
register_mimetype ("application/x-m4", NFO.SOURCE_CODE);
register_mimetype ("application/x-ms-dos-executable", NFO.SOFTWARE);
register_mimetype ("application/x-perl", NFO.SOURCE_CODE);
register_mimetype ("application/x-php", NFO.SOURCE_CODE);
register_mimetype ("application/x-rpm", NFO.SOFTWARE);
register_mimetype ("application/x-ruby", NFO.SOURCE_CODE);
register_mimetype ("application/x-shellscript", NFO.SOURCE_CODE);
register_mimetype ("application/x-shockwave-flash", NFO.EXECUTABLE);
register_mimetype ("application/x-sql", NFO.SOURCE_CODE);
register_mimetype ("application/x-stuffit", NFO.ARCHIVE);
register_mimetype ("application/xhtml+xml", NFO.SOURCE_CODE);
register_mimetype ("application/xml", NFO.SOURCE_CODE);
register_mimetype ("application/xml-dtd", NFO.SOURCE_CODE);
register_mimetype ("application/zip", NFO.ARCHIVE);
register_mimetype ("audio/x-scpls", NFO.MEDIA_LIST);
register_mimetype ("image/gif", NFO.RASTER_IMAGE);
register_mimetype ("image/jpeg", NFO.RASTER_IMAGE);
register_mimetype ("image/pjpeg", NFO.RASTER_IMAGE);
register_mimetype ("image/png", NFO.RASTER_IMAGE);
register_mimetype ("image/svg+xml", NFO.VECTOR_IMAGE);
register_mimetype ("image/tiff", NFO.RASTER_IMAGE);
register_mimetype ("image/vnd.microsoft.icon", NFO.ICON);
register_mimetype ("image/x-xcf", NFO.RASTER_IMAGE);
register_mimetype ("inode/directory", NFO.FOLDER);
register_mimetype ("message/alternative", NMO.EMAIL);
register_mimetype ("message/partial", NMO.EMAIL);
register_mimetype ("message/related", NMO.EMAIL);
register_mimetype ("text/css", NFO.SOURCE_CODE);
register_mimetype ("text/csv", NFO.TEXT_DOCUMENT);
register_mimetype ("text/html", NFO.HTML_DOCUMENT);
register_mimetype ("text/javascript", NFO.SOURCE_CODE);
register_mimetype ("text/plain", NFO.TEXT_DOCUMENT);
register_mimetype ("text/vcard", NCO.CONTACT);
register_mimetype ("text/x-c", NFO.SOURCE_CODE);
register_mimetype ("text/x-c++", NFO.SOURCE_CODE);
register_mimetype ("text/x-c++src", NFO.SOURCE_CODE);
register_mimetype ("text/x-chdr", NFO.SOURCE_CODE);
register_mimetype ("text/x-copying", NFO.SOURCE_CODE);
register_mimetype ("text/x-credits", NFO.SOURCE_CODE);
register_mimetype ("text/x-csharp", NFO.SOURCE_CODE);
register_mimetype ("text/x-csrc", NFO.SOURCE_CODE);
register_mimetype ("text/x-dsrc", NFO.SOURCE_CODE);
register_mimetype ("text/x-eiffel", NFO.SOURCE_CODE);
register_mimetype ("text/x-gettext-translation", NFO.SOURCE_CODE);
register_mimetype ("text/x-gettext-translation-template", NFO.SOURCE_CODE);
register_mimetype ("text/x-haskell", NFO.SOURCE_CODE);
register_mimetype ("text/x-idl", NFO.SOURCE_CODE);
register_mimetype ("text/x-java", NFO.SOURCE_CODE);
register_mimetype ("text/x-jquery-tmpl", NFO.SOURCE_CODE);
register_mimetype ("text/x-latex", NFO.SOURCE_CODE);
register_mimetype ("text/x-lisp", NFO.SOURCE_CODE);
register_mimetype ("text/x-lua", NFO.SOURCE_CODE);
register_mimetype ("text/x-m4", NFO.SOURCE_CODE);
register_mimetype ("text/x-makefile", NFO.SOURCE_CODE);
register_mimetype ("text/x-objcsrc", NFO.SOURCE_CODE);
register_mimetype ("text/x-ocaml", NFO.SOURCE_CODE);
register_mimetype ("text/x-pascal", NFO.SOURCE_CODE);
register_mimetype ("text/x-patch", NFO.SOURCE_CODE);
register_mimetype ("text/x-python", NFO.SOURCE_CODE);
register_mimetype ("text/x-sql", NFO.SOURCE_CODE);
register_mimetype ("text/x-tcl", NFO.SOURCE_CODE);
register_mimetype ("text/x-tex", NFO.SOURCE_CODE);
register_mimetype ("text/x-troff", NFO.SOURCE_CODE);
register_mimetype ("text/x-vala", NFO.SOURCE_CODE);
register_mimetype ("text/x-vhdl", NFO.SOURCE_CODE);
register_mimetype ("text/xml", NFO.SOURCE_CODE);
register_mimetype_regex (".*/x-dvi", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype_regex ("application/vnd.ms-excel.*", NFO.SPREADSHEET);
register_mimetype_regex ("application/vnd.ms-powerpoint.*", NFO.PRESENTATION);
register_mimetype_regex ("application/vnd.oasis.opendocument.graphics.*", NFO.VECTOR_IMAGE);
register_mimetype_regex ("application/vnd.oasis.opendocument.presentation.*", NFO.PRESENTATION);
register_mimetype_regex ("application/vnd.oasis.opendocument.spreadsheet.*", NFO.SPREADSHEET);
register_mimetype_regex ("application/vnd.oasis.opendocument.text.*", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype_regex ("application/vnd.openxmlformats-officedocument.presentationml.presentation.*", NFO.PRESENTATION);
register_mimetype_regex ("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.*", NFO.SPREADSHEET);
register_mimetype_regex ("application/vnd.openxmlformats-officedocument.wordprocessingml.document.*", NFO.PAGINATED_TEXT_DOCUMENT);
register_mimetype_regex ("application/vnd\\..*", NFO.DOCUMENT);
register_mimetype_regex ("application/x-applix-.*", NFO.DOCUMENT);
register_mimetype_regex ("audio/.*", NFO.AUDIO);
register_mimetype_regex ("image/.*", NFO.IMAGE);
register_mimetype_regex ("video/.*", NFO.VIDEO);
mimetypes_loaded = true;
}
private static void ensure_schemes_loaded ()
{
if (schemes_loaded)
return;
register_uri_scheme ("file://", NFO.FILE_DATA_OBJECT);
register_uri_scheme ("http://", NFO.WEB_DATA_OBJECT);
register_uri_scheme ("https://", NFO.WEB_DATA_OBJECT);
register_uri_scheme ("ssh://", NFO.REMOTE_DATA_OBJECT);
register_uri_scheme ("sftp://", NFO.REMOTE_DATA_OBJECT);
register_uri_scheme ("ftp://", NFO.REMOTE_DATA_OBJECT);
register_uri_scheme ("dav://", NFO.REMOTE_DATA_OBJECT);
register_uri_scheme ("davs://", NFO.REMOTE_DATA_OBJECT);
register_uri_scheme ("smb://", NFO.REMOTE_DATA_OBJECT);
schemes_loaded = true;
}
}
// vim:expandtab:ts=4:sw=4
|
