1 /*
2  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef MIMETypeRegistry_h
27 #define MIMETypeRegistry_h
28 
29 #include "PlatformString.h"
30 #include <wtf/HashSet.h>
31 #include <wtf/Vector.h>
32 #include <wtf/text/StringHash.h>
33 
34 namespace WebCore {
35 
36 class MIMETypeRegistry {
37 public:
38     static String getMIMETypeForExtension(const String& extension);
39 #if ENABLE(FILE_SYSTEM) && ENABLE(WORKERS)
40     static String getMIMETypeForExtensionThreadSafe(const String& extension);
41 #endif
42     static Vector<String> getExtensionsForMIMEType(const String& type);
43     static String getPreferredExtensionForMIMEType(const String& type);
44     static String getMediaMIMETypeForExtension(const String& extension);
45     static Vector<String> getMediaMIMETypesForExtension(const String& extension);
46 
47     static String getMIMETypeForPath(const String& path);
48 
49     // Check to see if a mime type is suitable for being loaded inline as an
50     // image (e.g., <img> tags).
51     static bool isSupportedImageMIMEType(const String& mimeType);
52 
53     // Check to see if a mime type is suitable for being loaded as an image
54     // document in a frame.
55     static bool isSupportedImageResourceMIMEType(const String& mimeType);
56 
57     // Check to see if a mime type is suitable for being encoded.
58     static bool isSupportedImageMIMETypeForEncoding(const String& mimeType);
59 
60     // Check to see if a mime type is suitable for being loaded as a JavaScript
61     // resource.
62     static bool isSupportedJavaScriptMIMEType(const String& mimeType);
63 
64     // Check to see if a non-image mime type is suitable for being loaded as a
65     // document in a frame.  Includes supported JavaScript MIME types.
66     static bool isSupportedNonImageMIMEType(const String& mimeType);
67 
68     // Check to see if a mime type is suitable for being loaded using <video> and <audio>
69     static bool isSupportedMediaMIMEType(const String& mimeType);
70 
71     // Check to see if the mime type is not suitable for being loaded as a text
72     // document in a frame. Only valid for mime types begining with "text/".
73     static bool isUnsupportedTextMIMEType(const String& mimeType);
74 
75     // Check to see if a mime type is a valid Java applet mime type
76     static bool isJavaAppletMIMEType(const String& mimeType);
77 
78     // Check to see if a mime type is a plugin implemented by the
79     // browser (e.g. a Qt Plugin).
80     static bool isApplicationPluginMIMEType(const String& mimeType);
81 
82     static HashSet<String>& getSupportedImageMIMETypes();
83     static HashSet<String>& getSupportedImageResourceMIMETypes();
84     static HashSet<String>& getSupportedImageMIMETypesForEncoding();
85     static HashSet<String>& getSupportedNonImageMIMETypes();
86     static HashSet<String>& getSupportedMediaMIMETypes();
87     static HashSet<String>& getUnsupportedTextMIMETypes();
88 };
89 
90 const String& defaultMIMEType();
91 
92 } // namespace WebCore
93 
94 #endif // MIMETypeRegistry_h
95