Revert "WebCrypto: Add SHA-1 support to crypto.subtle.digest()."

Source/modules/crypto/SubtleCrypto.cpp

 /*
  * Copyright (C) 2013 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
  * 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.
  */
 
+
 #include "config.h"
 #include "modules/crypto/SubtleCrypto.h"
 
 #include "core/dom/ExceptionCode.h"
 #include "modules/crypto/CryptoOperation.h"
 #include "modules/crypto/NormalizeAlgorithm.h"
-#include "public/platform/WebArrayBuffer.h" // FIXME: temporary
-#include "public/platform/WebCrypto.h"
 #include "wtf/ArrayBuffer.h"
 #include "wtf/ArrayBufferView.h"
-#include "wtf/SHA1.h" // FIXME: temporary
-
 
 namespace WebCore {
 
-namespace {
-
-// FIXME: The following are temporary implementations of what *should* go on the
-//        embedder's side. Since SHA1 is easily implemented, this serves as
-//        a useful proof of concept to get layout tests up and running and
-//        returning correct results, until the embedder's side is implemented.
-//------------------------------------------------------------------------------
-class DummyOperation : public WebKit::WebCryptoOperation {
-public:
-    virtual void process(const unsigned char* bytes, size_t size) OVERRIDE
-    {
-        ASSERT_NOT_REACHED();
-    }
-    virtual void abort() OVERRIDE
-    {
-        delete this;
-    }
-    virtual void finish(WebKit::WebCryptoOperationResult* result) OVERRIDE
-    {
-        ASSERT_NOT_REACHED();
-    }
-};
-
-class MockSha1Operation : public DummyOperation {
-public:
-    virtual void process(const unsigned char* bytes, size_t size) OVERRIDE
-    {
-        m_sha1.addBytes(bytes, size);
-    }
-
-    virtual void finish(WebKit::WebCryptoOperationResult* result) OVERRIDE
-    {
-        Vector<uint8_t, 20> hash;
-        m_sha1.computeHash(hash);
-
-        WebKit::WebArrayBuffer buffer = WebKit::WebArrayBuffer::create(hash.size(), 1);
-        memcpy(buffer.data(), hash.data(), hash.size());
-
-        result->setArrayBuffer(buffer);
-        delete this;
-    }
-
-private:
-    SHA1 m_sha1;
-};
-//------------------------------------------------------------------------------
-
-} // namespace
-
 SubtleCrypto::SubtleCrypto()
 {
     ScriptWrappable::init(this);
 }
 
 PassRefPtr<CryptoOperation> SubtleCrypto::encrypt(const Dictionary& rawAlgorithm, ExceptionCode& ec)
 {
     WebKit::WebCryptoAlgorithm algorithm;
     if (!normalizeAlgorithm(rawAlgorithm, Encrypt, algorithm, ec))
         return 0;
-    return CryptoOperation::create(algorithm, new DummyOperation);
+    return CryptoOperation::create(algorithm);
 }
 
 PassRefPtr<CryptoOperation> SubtleCrypto::decrypt(const Dictionary& rawAlgorithm, ExceptionCode& ec)
 {
     WebKit::WebCryptoAlgorithm algorithm;
     if (!normalizeAlgorithm(rawAlgorithm, Decrypt, algorithm, ec))
         return 0;
-    return CryptoOperation::create(algorithm, new DummyOperation);
+    return CryptoOperation::create(algorithm);
 }
 
 PassRefPtr<CryptoOperation> SubtleCrypto::sign(const Dictionary& rawAlgorithm, ExceptionCode& ec)
 {
     WebKit::WebCryptoAlgorithm algorithm;
     if (!normalizeAlgorithm(rawAlgorithm, Sign, algorithm, ec))
         return 0;
-    return CryptoOperation::create(algorithm, new DummyOperation);
+    return CryptoOperation::create(algorithm);
 }
 
 PassRefPtr<CryptoOperation> SubtleCrypto::verifySignature(const Dictionary& rawAlgorithm, ExceptionCode& ec)
 {
     WebKit::WebCryptoAlgorithm algorithm;
     if (!normalizeAlgorithm(rawAlgorithm, Verify, algorithm, ec))
         return 0;
-    return CryptoOperation::create(algorithm, new DummyOperation);
+    return CryptoOperation::create(algorithm);
 }
 
 PassRefPtr<CryptoOperation> SubtleCrypto::digest(const Dictionary& rawAlgorithm, ExceptionCode& ec)
 {
     WebKit::WebCryptoAlgorithm algorithm;
     if (!normalizeAlgorithm(rawAlgorithm, Digest, algorithm, ec))
         return 0;
-
-    // FIXME: Create the WebCryptoImplementation by calling out to
-    // Platform::crypto() instead.
-    WebKit::WebCryptoOperation* operationImpl = algorithm.id() == WebKit::WebCryptoAlgorithmIdSha1 ? new MockSha1Operation : new DummyOperation;
-
-    return CryptoOperation::create(algorithm, operationImpl);
+    return CryptoOperation::create(algorithm);
 }
 
 } // namespace WebCore