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 "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 43namespace WebCore { 44 45#if ENABLE(FILE_SYSTEM) && ENABLE(WORKERS) 46String 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 56String 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'. 63String 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 76String 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 93bool MIMETypeRegistry::isSupportedImageMIMEType(const String& mimeType) 94{ 95 return PlatformBridge::isSupportedImageMIMEType(mimeType); 96} 97 98bool MIMETypeRegistry::isSupportedImageResourceMIMEType(const String& mimeType) 99{ 100 return isSupportedImageMIMEType(mimeType); 101} 102 103bool MIMETypeRegistry::isSupportedImageMIMETypeForEncoding(const String& mimeType) 104{ 105 return mimeType == "image/jpeg" || mimeType == "image/png"; 106} 107 108bool MIMETypeRegistry::isSupportedJavaScriptMIMEType(const String& mimeType) 109{ 110 return PlatformBridge::isSupportedJavaScriptMIMEType(mimeType); 111} 112 113bool MIMETypeRegistry::isSupportedNonImageMIMEType(const String& mimeType) 114{ 115 return PlatformBridge::isSupportedNonImageMIMEType(mimeType); 116} 117 118bool 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 127bool 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 138String MIMETypeRegistry::getMediaMIMETypeForExtension(const String&) 139{ 140 return String(); 141} 142 143bool MIMETypeRegistry::isApplicationPluginMIMEType(const String&) 144{ 145 return false; 146} 147 148static 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 156HashSet<String>& MIMETypeRegistry::getSupportedImageMIMETypes() { return dummyHashSet(); } 157HashSet<String>& MIMETypeRegistry::getSupportedImageResourceMIMETypes() { return dummyHashSet(); } 158HashSet<String>& MIMETypeRegistry::getSupportedImageMIMETypesForEncoding() { return dummyHashSet(); } 159HashSet<String>& MIMETypeRegistry::getSupportedNonImageMIMETypes() { return dummyHashSet(); } 160HashSet<String>& MIMETypeRegistry::getSupportedMediaMIMETypes() { return dummyHashSet(); } 161 162} // namespace WebCore 163