third_party/WebKit/Source/platform/network/mime/MIMETypeRegistry.h

/*
 * Copyright (C) 2006 Apple Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef MIMETypeRegistry_h
#define MIMETypeRegistry_h

#include "platform/PlatformExport.h"
#include "platform/wtf/Allocator.h"
#include "platform/wtf/HashSet.h"
#include "platform/wtf/text/StringHash.h"
#include "platform/wtf/text/WTFString.h"

namespace blink {

// Note/reminder: MIME type and parameter names are per-RFC case
// insensitive (https://www.ietf.org/rfc/rfc2045.txt , section 5.1).
// The MIMETypeRegistry predicates are all case-insensitive.
class PLATFORM_EXPORT MIMETypeRegistry {
  STATIC_ONLY(MIMETypeRegistry);

 public:
  // For Media MIME type checks.
  enum SupportsType { IsNotSupported, IsSupported, MayBeSupported };

  static String getMIMETypeForExtension(const String& extension);
  static String getWellKnownMIMETypeForExtension(const String& extension);
  static String getMIMETypeForPath(const String& path);

  // Checks to see if the given mime type is supported.
  static bool isSupportedMIMEType(const String& mimeType);

  // Checks to see if a mime type is suitable for being loaded inline as an
  // image (e.g., <img> tags).
  static bool isSupportedImageMIMEType(const String& mimeType);

  // Checks to see if a mime type is suitable for being loaded as an image
  // document in a frame.
  static bool isSupportedImageResourceMIMEType(const String& mimeType);

  // Checks to see if a mime type is suitable for being displayed as an image.
  static bool isSupportedImagePrefixedMIMEType(const String& mimeType);

  // Checks to see if a mime type is suitable for being encoded.
  static bool isSupportedImageMIMETypeForEncoding(const String& mimeType);

  // Checks to see if a mime type is suitable for being loaded as a JavaScript
  // resource.
  static bool isSupportedJavaScriptMIMEType(const String& mimeType);

  static bool isLegacySupportedJavaScriptLanguage(const String& language);

  // Checks to see if a non-image mime type is suitable for being loaded as a
  // document in a frame. Includes supported JavaScript MIME types.
  static bool isSupportedNonImageMIMEType(const String& mimeType);

  // Checks to see if the mime type and codecs are supported media MIME types.
  static bool isSupportedMediaMIMEType(const String& mimeType,
                                       const String& codecs);

  // Does similar to isSupportedMediaMIMEType, but returns a little more
  // detailed information in SupportsType enum.
  static SupportsType supportsMediaMIMEType(const String& mimeType,
                                            const String& codecs);

  // Checks to see if the mime type and codecs are supported by the MediaSource
  // implementation.
  static bool isSupportedMediaSourceMIMEType(const String& mimeType,
                                             const String& codecs);

  // Checks to see if a mime type is a valid Java applet mime type
  static bool isJavaAppletMIMEType(const String& mimeType);

  // Checks to see if a mime type is suitable for being loaded as a stylesheet.
  static bool isSupportedStyleSheetMIMEType(const String& mimeType);

  // Checks to see if a mime type is suitable for being loaded as a font.
  static bool isSupportedFontMIMEType(const String& mimeType);

  // Checks to see if a mime type is suitable for being loaded as a text track.
  static bool isSupportedTextTrackMIMEType(const String& mimeType);
};

}  // namespace blink

#endif  // MIMETypeRegistry_h