third_party/WebKit/Source/platform/network/ParsedContentType.h

/*
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 * Copyright (C) 2012 Intel Corporation. All rights reserved.
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#ifndef ParsedContentType_h
#define ParsedContentType_h

#include "platform/PlatformExport.h"
#include "platform/network/ParsedContentHeaderFieldParameters.h"
#include "platform/wtf/Allocator.h"
#include "platform/wtf/Optional.h"
#include "platform/wtf/text/WTFString.h"

namespace blink {

// ParsedContentType parses the content of a Content-Type header field as
// specified in RFC2045 into MIME type and parameters and stores them.
// FIXME: add support for comments.
class PLATFORM_EXPORT ParsedContentType final {
  STACK_ALLOCATED();

 public:
  using Mode = ParsedContentHeaderFieldParameters::Mode;

  explicit ParsedContentType(const String&, Mode = Mode::kNormal);

  String MimeType() const { return mime_type_; }
  String Charset() const;

  // Note that in the case of multiple values for the same name, the last value
  // is returned.
  String ParameterValueForName(const String& name) const {
    return IsValid() ? parameters_->ParameterValueForName(name) : String();
  }
  const ParsedContentHeaderFieldParameters& GetParameters() const {
    DCHECK(IsValid());
    return *parameters_;
  }

  bool IsValid() const { return !!parameters_; }

 private:
  String mime_type_;
  WTF::Optional<ParsedContentHeaderFieldParameters> parameters_;
};

}  // namespace blink

#endif