Get rid of WTF::SHA1.

Source/platform/Crypto.cpp

Index: Source/platform/Crypto.cpp
diff --git a/Source/platform/Crypto.cpp b/Source/platform/Crypto.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8a446dfb6834705531d0b224506536d378dc760a
--- /dev/null
+++ b/Source/platform/Crypto.cpp
@@ -0,0 +1,94 @@
+/*
+ * 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
+ * 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.
+ */

[abarth-chromium, 2014/04/01 23:46:48]

Please use new-style copyright blocks:

http://dev.chromium.org/blink/coding-style#TOC-License

[jww, 2014/04/02 01:11:50]

Done.

+
+#include "config.h"
+#include "platform/Crypto.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 {
+
+static blink::WebCryptoAlgorithmId convertHashAlgorithm(HashAlgorithm algorithm)

[abarth-chromium, 2014/04/01 23:46:48]

convertHashAlgorithm -> toWebCryptoAlgorithmId

[jww, 2014/04/02 01:11:50]

Done.

+{
+    switch (algorithm) {
+    case HashAlgorithmSha1:
+        return blink::WebCryptoAlgorithmIdSha1;
+    case HashAlgorithmSha256:
+        return blink::WebCryptoAlgorithmIdSha256;
+    case HashAlgorithmSha384:
+        return blink::WebCryptoAlgorithmIdSha384;
+    case HashAlgorithmSha512:
+        return blink::WebCryptoAlgorithmIdSha512;
+    };
+
+    ASSERT_NOT_REACHED();
+}
+
+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(static_cast<uint8_t*>(result.data()), result.byteLength());
+}
+
+blink::WebCryptoDigestor* createDigestor(HashAlgorithm algorithm)
+{
+    blink::WebCrypto* crypto = blink::Platform::current()->crypto();
+
+    ASSERT(crypto);
+
+    return crypto->createDigestor(convertHashAlgorithm(algorithm));

[abarth-chromium, 2014/04/01 23:46:48]

I'd just make this function all be one line.  This ASSERT doesn't buy us much
because the code will crash on the next line anyway.

[jww, 2014/04/02 01:11:50]

Done.

+}
+
+void finishDigestor(blink::WebCryptoDigestor* digestor, DigestValue& digestResult)
+{
+    unsigned char* result;
+    unsigned resultSize;

[abarth-chromium, 2014/04/01 23:46:48]

Please initialize scalars.

[jww, 2014/04/02 01:11:50]

Done.

+
+    if (!digestor->finish(result, resultSize))
+        return;
+
+    ASSERT(result);
+
+    digestResult.append(static_cast<uint8_t*>(result), resultSize);
+}
+
+} // namespace WebCore