webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

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diff --git a/Source/WebCore/crypto/algorithms/CryptoAlgorithmHMAC.cpp b/Source/WebCore/crypto/algorithms/CryptoAlgorithmHMAC.cpp
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+++ b/Source/WebCore/crypto/algorithms/CryptoAlgorithmHMAC.cpp
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+/*
+ * Copyright (C) 2013 Apple 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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 "CryptoAlgorithmHMAC.h"
+
+#if ENABLE(SUBTLE_CRYPTO)
+
+#include "CryptoAlgorithmHmacKeyParams.h"
+#include "CryptoAlgorithmHmacKeyParamsDeprecated.h"
+#include "CryptoAlgorithmHmacParamsDeprecated.h"
+#include "CryptoKeyDataOctetSequence.h"
+#include "CryptoKeyHMAC.h"
+#include "ExceptionCode.h"
+#include <wtf/Variant.h>
+
+namespace WebCore {
+
+static const char* const ALG1 = "HS1";
+static const char* const ALG224 = "HS224";
+static const char* const ALG256 = "HS256";
+static const char* const ALG384 = "HS384";
+static const char* const ALG512 = "HS512";
+
+static inline bool usagesAreInvalidForCryptoAlgorithmHMAC(CryptoKeyUsageBitmap usages)
+{
+    return usages & (CryptoKeyUsageEncrypt | CryptoKeyUsageDecrypt | CryptoKeyUsageDeriveKey | CryptoKeyUsageDeriveBits | CryptoKeyUsageWrapKey | CryptoKeyUsageUnwrapKey);
+}
+
+Ref<CryptoAlgorithm> CryptoAlgorithmHMAC::create()
+{
+    return adoptRef(*new CryptoAlgorithmHMAC);
+}
+
+CryptoAlgorithmIdentifier CryptoAlgorithmHMAC::identifier() const
+{
+    return s_identifier;
+}
+
+bool CryptoAlgorithmHMAC::keyAlgorithmMatches(const CryptoAlgorithmHmacParamsDeprecated& parameters, const CryptoKey& key) const
+{
+    if (key.algorithmIdentifier() != s_identifier)
+        return false;
+
+    if (downcast<CryptoKeyHMAC>(key).hashAlgorithmIdentifier() != parameters.hash)
+        return false;
+
+    return true;
+}
+
+void CryptoAlgorithmHMAC::sign(Ref<CryptoKey>&& key, Vector<uint8_t>&& data, VectorCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext& context, WorkQueue& workQueue)
+{
+    platformSign(WTFMove(key), WTFMove(data), WTFMove(callback), WTFMove(exceptionCallback), context, workQueue);
+}
+
+void CryptoAlgorithmHMAC::verify(Ref<CryptoKey>&& key, Vector<uint8_t>&& signature, Vector<uint8_t>&& data, BoolCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext& context, WorkQueue& workQueue)
+{
+    platformVerify(WTFMove(key), WTFMove(signature), WTFMove(data), WTFMove(callback), WTFMove(exceptionCallback), context, workQueue);
+}
+
+void CryptoAlgorithmHMAC::generateKey(const CryptoAlgorithmParameters& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyOrKeyPairCallback&& callback, ExceptionCallback&& exceptionCallback, ScriptExecutionContext&)
+{
+    const auto& hmacParameters = downcast<CryptoAlgorithmHmacKeyParams>(parameters);
+
+    if (usagesAreInvalidForCryptoAlgorithmHMAC(usages)) {
+        exceptionCallback(SYNTAX_ERR);
+        return;
+    }
+
+    if (hmacParameters.length && !hmacParameters.length.value()) {
+        exceptionCallback(OperationError);
+        return;
+    }
+
+    auto result = CryptoKeyHMAC::generate(hmacParameters.length.value_or(0), hmacParameters.hashIdentifier, extractable, usages);
+    if (!result) {
+        exceptionCallback(OperationError);
+        return;
+    }
+
+    callback(WTFMove(result));
+}
+
+void CryptoAlgorithmHMAC::importKey(SubtleCrypto::KeyFormat format, KeyData&& data, const std::unique_ptr<CryptoAlgorithmParameters>&& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyCallback&& callback, ExceptionCallback&& exceptionCallback)
+{
+    ASSERT(parameters);
+    const auto& hmacParameters = downcast<CryptoAlgorithmHmacKeyParams>(*parameters);
+
+    if (usagesAreInvalidForCryptoAlgorithmHMAC(usages)) {
+        exceptionCallback(SYNTAX_ERR);
+        return;
+    }
+
+    RefPtr<CryptoKeyHMAC> result;
+    switch (format) {
+    case SubtleCrypto::KeyFormat::Raw:
+        result = CryptoKeyHMAC::importRaw(hmacParameters.length.value_or(0), hmacParameters.hashIdentifier, WTFMove(WTF::get<Vector<uint8_t>>(data)), extractable, usages);
+        break;
+    case SubtleCrypto::KeyFormat::Jwk: {
+        auto checkAlgCallback = [](CryptoAlgorithmIdentifier hash, const String& alg) -> bool {
+            switch (hash) {
+            case CryptoAlgorithmIdentifier::SHA_1:
+                return alg.isNull() || alg == ALG1;
+            case CryptoAlgorithmIdentifier::SHA_224:
+                return alg.isNull() || alg == ALG224;
+            case CryptoAlgorithmIdentifier::SHA_256:
+                return alg.isNull() || alg == ALG256;
+            case CryptoAlgorithmIdentifier::SHA_384:
+                return alg.isNull() || alg == ALG384;
+            case CryptoAlgorithmIdentifier::SHA_512:
+                return alg.isNull() || alg == ALG512;
+            default:
+                return false;
+            }
+            return false;
+        };
+        result = CryptoKeyHMAC::importJwk(hmacParameters.length.value_or(0), hmacParameters.hashIdentifier, WTFMove(WTF::get<JsonWebKey>(data)), extractable, usages, WTFMove(checkAlgCallback));
+        break;
+    }
+    default:
+        exceptionCallback(NOT_SUPPORTED_ERR);
+        return;
+    }
+    if (!result) {
+        exceptionCallback(DataError);
+        return;
+    }
+
+    callback(*result);
+}
+
+void CryptoAlgorithmHMAC::exportKey(SubtleCrypto::KeyFormat format, Ref<CryptoKey>&& key, KeyDataCallback&& callback, ExceptionCallback&& exceptionCallback)
+{
+    const auto& hmacKey = downcast<CryptoKeyHMAC>(key.get());
+
+    if (hmacKey.key().isEmpty()) {
+        exceptionCallback(OperationError);
+        return;
+    }
+
+    KeyData result;
+    switch (format) {
+    case SubtleCrypto::KeyFormat::Raw:
+        result = Vector<uint8_t>(hmacKey.key());
+        break;
+    case SubtleCrypto::KeyFormat::Jwk: {
+        JsonWebKey jwk = hmacKey.exportJwk();
+        switch (hmacKey.hashAlgorithmIdentifier()) {
+        case CryptoAlgorithmIdentifier::SHA_1:
+            jwk.alg = String(ALG1);
+            break;
+        case CryptoAlgorithmIdentifier::SHA_224:
+            jwk.alg = String(ALG224);
+            break;
+        case CryptoAlgorithmIdentifier::SHA_256:
+            jwk.alg = String(ALG256);
+            break;
+        case CryptoAlgorithmIdentifier::SHA_384:
+            jwk.alg = String(ALG384);
+            break;
+        case CryptoAlgorithmIdentifier::SHA_512:
+            jwk.alg = String(ALG512);
+            break;
+        default:
+            ASSERT_NOT_REACHED();
+        }
+        result = WTFMove(jwk);
+        break;
+    }
+    default:
+        exceptionCallback(NOT_SUPPORTED_ERR);
+        return;
+    }
+
+    callback(format, WTFMove(result));
+}
+
+ExceptionOr<void> CryptoAlgorithmHMAC::sign(const CryptoAlgorithmParametersDeprecated& parameters, const CryptoKey& key, const CryptoOperationData& data, VectorCallback&& callback, VoidCallback&& failureCallback)
+{
+    auto& hmacParameters = downcast<CryptoAlgorithmHmacParamsDeprecated>(parameters);
+    if (!keyAlgorithmMatches(hmacParameters, key))
+        return Exception { NOT_SUPPORTED_ERR };
+    return platformSign(hmacParameters, downcast<CryptoKeyHMAC>(key), data, WTFMove(callback), WTFMove(failureCallback));
+}
+
+ExceptionOr<void> CryptoAlgorithmHMAC::verify(const CryptoAlgorithmParametersDeprecated& parameters, const CryptoKey& key, const CryptoOperationData& expectedSignature, const CryptoOperationData& data, BoolCallback&& callback, VoidCallback&& failureCallback)
+{
+    auto& hmacParameters = downcast<CryptoAlgorithmHmacParamsDeprecated>(parameters);
+    if (!keyAlgorithmMatches(hmacParameters, key))
+        return Exception { NOT_SUPPORTED_ERR };
+    return platformVerify(hmacParameters, downcast<CryptoKeyHMAC>(key), expectedSignature, data, WTFMove(callback), WTFMove(failureCallback));
+}
+
+ExceptionOr<void> CryptoAlgorithmHMAC::generateKey(const CryptoAlgorithmParametersDeprecated& parameters, bool extractable, CryptoKeyUsageBitmap usages, KeyOrKeyPairCallback&& callback, VoidCallback&& failureCallback, ScriptExecutionContext&)
+{
+    auto& hmacParameters = downcast<CryptoAlgorithmHmacKeyParamsDeprecated>(parameters);
+    auto result = CryptoKeyHMAC::generate(hmacParameters.hasLength ? hmacParameters.length : 0, hmacParameters.hash, extractable, usages);
+    if (!result) {
+        failureCallback();
+        return { };
+    }
+    callback(WTFMove(result));
+    return { };
+}
+
+ExceptionOr<void> CryptoAlgorithmHMAC::importKey(const CryptoAlgorithmParametersDeprecated& parameters, const CryptoKeyData& keyData, bool extractable, CryptoKeyUsageBitmap usage, KeyCallback&& callback, VoidCallback&&)
+{
+    if (!is<CryptoKeyDataOctetSequence>(keyData))
+        return Exception { NOT_SUPPORTED_ERR };
+    callback(CryptoKeyHMAC::create(downcast<CryptoKeyDataOctetSequence>(keyData).octetSequence(), downcast<CryptoAlgorithmHmacParamsDeprecated>(parameters).hash, extractable, usage));
+    return { };
+}
+
+}
+
+#endif // ENABLE(SUBTLE_CRYPTO)