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 *
8 * * Redistributions of source code must retain the above copyright
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
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "platform/MIMETypeRegistry.h"
33
34 #include "platform/plugins/PluginData.h"
35
36 #include "public/platform/Platform.h"
37 #include "public/platform/WebMimeRegistry.h"
38 #include "wtf/text/CString.h"
39
40 namespace blink {
41
getMIMETypeForExtension(const String & ext)42 String MIMETypeRegistry::getMIMETypeForExtension(const String &ext)
43 {
44 return blink::Platform::current()->mimeRegistry()->mimeTypeForExtension(ext);
45 }
46
getWellKnownMIMETypeForExtension(const String & ext)47 String MIMETypeRegistry::getWellKnownMIMETypeForExtension(const String &ext)
48 {
49 // This method must be thread safe and should not consult the OS/registry.
50 return blink::Platform::current()->mimeRegistry()->wellKnownMimeTypeForExtension(ext);
51 }
52
getMIMETypeForPath(const String & path)53 String MIMETypeRegistry::getMIMETypeForPath(const String& path)
54 {
55 int pos = path.reverseFind('.');
56 if (pos < 0)
57 return "application/octet-stream";
58 String extension = path.substring(pos + 1);
59 String mimeType = getMIMETypeForExtension(extension);
60 if (mimeType.isEmpty()) {
61 // If there's no mimetype registered for the extension, check to see
62 // if a plugin can handle the extension.
63 mimeType = getPluginMimeTypeFromExtension(extension);
64 }
65 if (mimeType.isEmpty())
66 return "application/octet-stream";
67 return mimeType;
68 }
69
isSupportedImageMIMEType(const String & mimeType)70 bool MIMETypeRegistry::isSupportedImageMIMEType(const String& mimeType)
71 {
72 return blink::Platform::current()->mimeRegistry()->supportsImageMIMEType(mimeType.lower())
73 != blink::WebMimeRegistry::IsNotSupported;
74 }
75
isSupportedImageResourceMIMEType(const String & mimeType)76 bool MIMETypeRegistry::isSupportedImageResourceMIMEType(const String& mimeType)
77 {
78 return isSupportedImageMIMEType(mimeType);
79 }
80
isSupportedImagePrefixedMIMEType(const String & mimeType)81 bool MIMETypeRegistry::isSupportedImagePrefixedMIMEType(const String& mimeType)
82 {
83 return blink::Platform::current()->mimeRegistry()->supportsImagePrefixedMIMEType(mimeType.lower())
84 != blink::WebMimeRegistry::IsNotSupported;
85 }
86
isSupportedImageMIMETypeForEncoding(const String & mimeType)87 bool MIMETypeRegistry::isSupportedImageMIMETypeForEncoding(const String& mimeType)
88 {
89 if (equalIgnoringCase(mimeType, "image/jpeg") || equalIgnoringCase(mimeType, "image/png"))
90 return true;
91 if (equalIgnoringCase(mimeType, "image/webp"))
92 return true;
93 return false;
94 }
95
isSupportedJavaScriptMIMEType(const String & mimeType)96 bool MIMETypeRegistry::isSupportedJavaScriptMIMEType(const String& mimeType)
97 {
98 return blink::Platform::current()->mimeRegistry()->supportsJavaScriptMIMEType(mimeType.lower())
99 != blink::WebMimeRegistry::IsNotSupported;
100 }
101
isSupportedNonImageMIMEType(const String & mimeType)102 bool MIMETypeRegistry::isSupportedNonImageMIMEType(const String& mimeType)
103 {
104 return blink::Platform::current()->mimeRegistry()->supportsNonImageMIMEType(mimeType.lower())
105 != blink::WebMimeRegistry::IsNotSupported;
106 }
107
isSupportedMediaSourceMIMEType(const String & mimeType,const String & codecs)108 bool MIMETypeRegistry::isSupportedMediaSourceMIMEType(const String& mimeType, const String& codecs)
109 {
110 return !mimeType.isEmpty()
111 && blink::Platform::current()->mimeRegistry()->supportsMediaSourceMIMEType(mimeType.lower(), codecs);
112 }
113
isSupportedEncryptedMediaMIMEType(const String & keySystem,const String & mimeType,const String & codecs)114 bool MIMETypeRegistry::isSupportedEncryptedMediaMIMEType(const String& keySystem, const String& mimeType, const String& codecs)
115 {
116 // Key system names are case-sensitive!
117 return blink::Platform::current()->mimeRegistry()->supportsEncryptedMediaMIMEType(keySystem, mimeType.lower(), codecs);
118 }
119
isJavaAppletMIMEType(const String & mimeType)120 bool MIMETypeRegistry::isJavaAppletMIMEType(const String& mimeType)
121 {
122 // Since this set is very limited and is likely to remain so we won't bother with the overhead
123 // of using a hash set.
124 // Any of the MIME types below may be followed by any number of specific versions of the JVM,
125 // which is why we use startsWith()
126 return mimeType.startsWith("application/x-java-applet", false)
127 || mimeType.startsWith("application/x-java-bean", false)
128 || mimeType.startsWith("application/x-java-vm", false);
129 }
130
131 } // namespace blink
132