mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
||
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
||
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||
|
|
||
|
#ifndef mozilla_dom_SRIMetadata_h
|
||
|
#define mozilla_dom_SRIMetadata_h
|
||
|
|
||
|
#include "nsTArray.h"
|
||
|
#include "nsString.h"
|
||
|
|
||
|
namespace mozilla {
|
||
|
namespace dom {
|
||
|
|
||
|
class SRIMetadata final
|
||
|
{
|
||
|
public:
|
||
|
static const uint32_t MAX_ALTERNATE_HASHES = 256;
|
||
|
static const int8_t UNKNOWN_ALGORITHM = -1;
|
||
|
|
||
|
/**
|
||
|
* Create an empty metadata object.
|
||
|
*/
|
||
|
SRIMetadata() : mAlgorithmType(UNKNOWN_ALGORITHM), mEmpty(true) {}
|
||
|
|
||
|
/**
|
||
|
* Split a string token into the components of an SRI metadata
|
||
|
* attribute.
|
||
|
*/
|
||
|
explicit SRIMetadata(const nsACString& aToken);
|
||
|
|
||
|
/**
|
||
|
* Returns true when this object's hash algorithm is weaker than the
|
||
|
* other object's hash algorithm.
|
||
|
*/
|
||
|
bool operator<(const SRIMetadata& aOther) const;
|
||
|
|
||
|
/**
|
||
|
* Not implemented. Should not be used.
|
||
|
*/
|
||
|
bool operator>(const SRIMetadata& aOther) const;
|
||
|
|
||
|
/**
|
||
|
* Add another metadata's hash to this one.
|
||
|
*/
|
||
|
SRIMetadata& operator+=(const SRIMetadata& aOther);
|
||
|
|
||
|
/**
|
||
|
* Returns true when the two metadata use the same hash algorithm.
|
||
|
*/
|
||
|
bool operator==(const SRIMetadata& aOther) const;
|
||
|
|
||
|
bool IsEmpty() const { return mEmpty; }
|
||
|
bool IsMalformed() const { return mHashes.IsEmpty() || mAlgorithm.IsEmpty(); }
|
||
|
bool IsAlgorithmSupported() const { return mAlgorithmType != UNKNOWN_ALGORITHM; }
|
||
|
bool IsValid() const { return !IsMalformed() && IsAlgorithmSupported(); }
|
||
|
|
||
|
uint32_t HashCount() const { return mHashes.Length(); }
|
||
|
void GetHash(uint32_t aIndex, nsCString* outHash) const;
|
||
|
void GetAlgorithm(nsCString* outAlg) const { *outAlg = mAlgorithm; }
|
||
|
void GetHashType(int8_t* outType, uint32_t* outLength) const;
|
||
|
|
||
|
private:
|
||
|
nsTArray<nsCString> mHashes;
|
||
|
nsCString mAlgorithm;
|
||
|
int8_t mAlgorithmType;
|
||
|
bool mEmpty;
|
||
|
};
|
||
|
|
||
|
} // namespace dom
|
||
|
} // namespace mozilla
|
||
|
|
||
|
#endif // mozilla_dom_SRIMetadata_h
|