third_party/WebKit/Source/core/frame/SubresourceIntegrity.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SubresourceIntegrity_h
   6 #define SubresourceIntegrity_h
   7
   8 #include "core/CoreExport.h"
   9 #include "platform/Crypto.h"
  10 #include "wtf/Allocator.h"
  11
  12 namespace WTF {
  13 class String;
  14 };
  15
  16 namespace blink {
  17
  18 class Document;
  19 class Element;
  20 class KURL;
  21 class Resource;
  22
  23 class CORE_EXPORT SubresourceIntegrity {
  24     STATIC_ONLY(SubresourceIntegrity);
  25 public:
  26     enum IntegrityParseResult {
  27         IntegrityParseValidResult,
  28         IntegrityParseNoValidResult
  29     };
  30
  31     static bool CheckSubresourceIntegrity(const Element&, const WTF::String& content, const KURL& resourceUrl, const Resource&);
  32     static bool CheckSubresourceIntegrity(const String&, const WTF::String& content, const KURL& resourceUrl, Document&, WTF::String&);
  33
  34 private:
  35     // FIXME: After the merge with the Chromium repo, this should be refactored
  36     // to use FRIEND_TEST in base/gtest_prod_util.h.
  37     friend class SubresourceIntegrityTest;
  38     friend class SubresourceIntegrityTest_Parsing_Test;
  39     friend class SubresourceIntegrityTest_ParseAlgorithm_Test;
  40     friend class SubresourceIntegrityTest_Prioritization_Test;
  41
  42     enum AlgorithmParseResult {
  43         AlgorithmValid,
  44         AlgorithmUnparsable,
  45         AlgorithmUnknown
  46     };
  47
  48     struct IntegrityMetadata {
  49         WTF::String digest;
  50         HashAlgorithm algorithm;
  51     };
  52
  53     static HashAlgorithm getPrioritizedHashFunction(HashAlgorithm, HashAlgorithm);
  54     static AlgorithmParseResult parseAlgorithm(const UChar*& begin, const UChar* end, HashAlgorithm&);
  55     static bool parseDigest(const UChar*& begin, const UChar* end, String& digest);
  56
  57     static IntegrityParseResult parseIntegrityAttribute(const WTF::String& attribute, WTF::Vector<IntegrityMetadata>& metadataList, Document&);
  58 };
  59
  60 } // namespace blink
  61
  62 #endif