Get rid of WTF::SHA1.

Source/platform/CryptoUtilities.cpp

 /*
- * Copyright (C) 2011 Google Inc. All rights reserved.
+ * Copyright (C) 2014 Google 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.
  * 3.  Neither the name of Google, Inc. ("Google") nor the names of
  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY GOOGLE AND ITS CONTRIBUTORS "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 OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef Crypto_h
-#define Crypto_h
+#include "config.h"
+#include "platform/CryptoUtilities.h"
 
-#include "bindings/v8/ScriptWrappable.h"
-#include "heap/Handle.h"
-#include "modules/crypto/SubtleCrypto.h"
-#include "wtf/Forward.h"
-#include "wtf/RefCounted.h"
-#include "wtf/RefPtr.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebArrayBuffer.h"
+#include "public/platform/WebCrypto.h"
+#include "public/platform/WebCryptoAlgorithm.h"
+#include "wtf/Vector.h"
+#include "wtf/text/CString.h"
 
 namespace WebCore {
+namespace CryptoUtil {
 
-class ExceptionState;
+static blink::WebCryptoAlgorithmId convertHashAlgorithm(HashAlgorithm algorithm)
+{
+    switch (algorithm) {
+    case HashAlgorithmSha1:
+        return blink::WebCryptoAlgorithmIdSha1;
+    case HashAlgorithmSha256:
+        return blink::WebCryptoAlgorithmIdSha256;
+    case HashAlgorithmSha384:
+        return blink::WebCryptoAlgorithmIdSha384;
+    case HashAlgorithmSha512:
+        return blink::WebCryptoAlgorithmIdSha512;
+    };
 
-class Crypto : public RefCountedWillBeGarbageCollectedFinalized<Crypto>, public ScriptWrappable {
-public:
-    static PassRefPtrWillBeRawPtr<Crypto> create() { return adoptRefWillBeNoop(new Crypto()); }
-
-    static void getRandomValues(ArrayBufferView*, ExceptionState&);
-
-    SubtleCrypto* subtle();
-
-    void trace(Visitor*);
-
-private:
-    Crypto();
-
-    RefPtrWillBeMember<SubtleCrypto> m_subtleCrypto;
-};
-
+    ASSERT_NOT_REACHED();
 }
 
-#endif
+void computeDigest(HashAlgorithm algorithm, const char* digestable, size_t length, DigestValue& digestResult)
+{
+    blink::WebCryptoAlgorithmId algorithmId = convertHashAlgorithm(algorithm);
+    blink::WebCrypto* crypto = blink::Platform::current()->crypto();
+    blink::WebArrayBuffer result;
+
+    ASSERT(crypto);
+
+    crypto->digestSynchronous(algorithmId, reinterpret_cast<const unsigned char*>(digestable), length, result);
+
+    ASSERT(!result.isNull());
+
+    digestResult.append(reinterpret_cast<uint8_t*>(result.data()), result.byteLength());

[eseidel, 2014/03/12 06:50:29]

Do we need this reinterpret_cast?

[jww, 2014/04/01 23:29:09]

It actually can be a static_cast, which I assume is preferably. I've changed it
to a static_cast but let me know if I'm mistaken about which is better to use.

+}
+
+} // namespace CryptoUtil
+} // namespace WebCore