1 /*
2 * Copyright (c) 2008, 2009, Google 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 are
6 * met:
7 *
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9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "MIMETypeRegistry.h"
33
34 #include "MediaPlayer.h"
35 #include "PlatformBridge.h"
36 #include "PluginDataChromium.h"
37 #include <wtf/text/CString.h>
38
39 // NOTE: Unlike other ports, we don't use the shared implementation bits in
40 // MIMETypeRegistry.cpp. Instead, we need to route most functions via the
41 // PlatformBridge to the embedder.
42
43 namespace WebCore {
44
45 #if ENABLE(FILE_SYSTEM) && ENABLE(WORKERS)
getMIMETypeForExtensionThreadSafe(const String & ext)46 String MIMETypeRegistry::getMIMETypeForExtensionThreadSafe(const String &ext)
47 {
48 return PlatformBridge::mimeTypeForExtension(ext);
49 }
50 #endif
51
52 // NOTE: We have to define getMIMETypeForExtension() here though the shared
53 // implementation has getMIMETypeForExtension() since we don't use the shared
54 // implementation bits in MIMETypeRegistry.cpp.
55
getMIMETypeForExtension(const String & ext)56 String MIMETypeRegistry::getMIMETypeForExtension(const String &ext)
57 {
58 return PlatformBridge::mimeTypeForExtension(ext);
59 }
60
61 // Returns the file extension if one is found. Does not include the dot in the
62 // filename. E.g., 'html'.
getPreferredExtensionForMIMEType(const String & type)63 String MIMETypeRegistry::getPreferredExtensionForMIMEType(const String& type)
64 {
65 // Prune out any parameters in case they happen to have snuck in there...
66 // FIXME: Is this really necessary??
67 String mimeType = type.substring(0, static_cast<unsigned>(type.find(';')));
68
69 String ext = PlatformBridge::preferredExtensionForMIMEType(type);
70 if (!ext.isEmpty() && ext[0] == '.')
71 ext = ext.substring(1);
72
73 return ext;
74 }
75
getMIMETypeForPath(const String & path)76 String MIMETypeRegistry::getMIMETypeForPath(const String& path)
77 {
78 int pos = path.reverseFind('.');
79 if (pos < 0)
80 return "application/octet-stream";
81 String extension = path.substring(pos + 1);
82 String mimeType = getMIMETypeForExtension(extension);
83 if (mimeType.isEmpty()) {
84 // If there's no mimetype registered for the extension, check to see
85 // if a plugin can handle the extension.
86 mimeType = getPluginMimeTypeFromExtension(extension);
87 }
88 if (mimeType.isEmpty())
89 return "application/octet-stream";
90 return mimeType;
91 }
92
isSupportedImageMIMEType(const String & mimeType)93 bool MIMETypeRegistry::isSupportedImageMIMEType(const String& mimeType)
94 {
95 return PlatformBridge::isSupportedImageMIMEType(mimeType);
96 }
97
isSupportedImageResourceMIMEType(const String & mimeType)98 bool MIMETypeRegistry::isSupportedImageResourceMIMEType(const String& mimeType)
99 {
100 return isSupportedImageMIMEType(mimeType);
101 }
102
isSupportedImageMIMETypeForEncoding(const String & mimeType)103 bool MIMETypeRegistry::isSupportedImageMIMETypeForEncoding(const String& mimeType)
104 {
105 return mimeType == "image/jpeg" || mimeType == "image/png";
106 }
107
isSupportedJavaScriptMIMEType(const String & mimeType)108 bool MIMETypeRegistry::isSupportedJavaScriptMIMEType(const String& mimeType)
109 {
110 return PlatformBridge::isSupportedJavaScriptMIMEType(mimeType);
111 }
112
isSupportedNonImageMIMEType(const String & mimeType)113 bool MIMETypeRegistry::isSupportedNonImageMIMEType(const String& mimeType)
114 {
115 return PlatformBridge::isSupportedNonImageMIMEType(mimeType);
116 }
117
isSupportedMediaMIMEType(const String & mimeType)118 bool MIMETypeRegistry::isSupportedMediaMIMEType(const String& mimeType)
119 {
120 HashSet<String> supportedMediaMIMETypes;
121 #if ENABLE(VIDEO)
122 MediaPlayer::getSupportedTypes(supportedMediaMIMETypes);
123 #endif
124 return !mimeType.isEmpty() && supportedMediaMIMETypes.contains(mimeType);
125 }
126
isJavaAppletMIMEType(const String & mimeType)127 bool MIMETypeRegistry::isJavaAppletMIMEType(const String& mimeType)
128 {
129 // Since this set is very limited and is likely to remain so we won't bother with the overhead
130 // of using a hash set.
131 // Any of the MIME types below may be followed by any number of specific versions of the JVM,
132 // which is why we use startsWith()
133 return mimeType.startsWith("application/x-java-applet", false)
134 || mimeType.startsWith("application/x-java-bean", false)
135 || mimeType.startsWith("application/x-java-vm", false);
136 }
137
getMediaMIMETypeForExtension(const String &)138 String MIMETypeRegistry::getMediaMIMETypeForExtension(const String&)
139 {
140 return String();
141 }
142
isApplicationPluginMIMEType(const String &)143 bool MIMETypeRegistry::isApplicationPluginMIMEType(const String&)
144 {
145 return false;
146 }
147
dummyHashSet()148 static HashSet<String>& dummyHashSet()
149 {
150 ASSERT_NOT_REACHED();
151 static HashSet<String> dummy;
152 return dummy;
153 }
154
155 // NOTE: the following methods should never be reached
getSupportedImageMIMETypes()156 HashSet<String>& MIMETypeRegistry::getSupportedImageMIMETypes() { return dummyHashSet(); }
getSupportedImageResourceMIMETypes()157 HashSet<String>& MIMETypeRegistry::getSupportedImageResourceMIMETypes() { return dummyHashSet(); }
getSupportedImageMIMETypesForEncoding()158 HashSet<String>& MIMETypeRegistry::getSupportedImageMIMETypesForEncoding() { return dummyHashSet(); }
getSupportedNonImageMIMETypes()159 HashSet<String>& MIMETypeRegistry::getSupportedNonImageMIMETypes() { return dummyHashSet(); }
getSupportedMediaMIMETypes()160 HashSet<String>& MIMETypeRegistry::getSupportedMediaMIMETypes() { return dummyHashSet(); }
161
162 } // namespace WebCore
163