Add Web Crypto API (#1384)

* Add Web Crypto API

* Duplicate symbols

* Update c_cpp_properties.json

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

1 files changed, 134 insertions, 0 deletions

diff --git a/src/bun.js/bindings/webcrypto/CryptoKeyAES.cpp b/src/bun.js/bindings/webcrypto/CryptoKeyAES.cpp
new file mode 100644
index 000000000..17cbf48d9
--- /dev/null
+++ b/src/bun.js/bindings/webcrypto/CryptoKeyAES.cpp
@@ -0,0 +1,134 @@
+/*
+ * 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 "CryptoKeyAES.h"
+
+#if ENABLE(WEB_CRYPTO)
+
+#include "CryptoAesKeyAlgorithm.h"
+#include "CryptoAlgorithmAesKeyParams.h"
+#include "CryptoAlgorithmRegistry.h"
+#include "ExceptionOr.h"
+#include "JsonWebKey.h"
+#include <wtf/text/Base64.h>
+#include <wtf/text/WTFString.h>
+
+namespace WebCore {
+
+static inline bool lengthIsValid(size_t length)
+{
+    return (length == CryptoKeyAES::s_length128) || (length == CryptoKeyAES::s_length192) || (length == CryptoKeyAES::s_length256);
+}
+
+CryptoKeyAES::CryptoKeyAES(CryptoAlgorithmIdentifier algorithm, const Vector<uint8_t>& key, bool extractable, CryptoKeyUsageBitmap usage)
+    : CryptoKey(algorithm, CryptoKeyType::Secret, extractable, usage)
+    , m_key(key)
+{
+    ASSERT(isValidAESAlgorithm(algorithm));
+}
+
+CryptoKeyAES::CryptoKeyAES(CryptoAlgorithmIdentifier algorithm, Vector<uint8_t>&& key, bool extractable, CryptoKeyUsageBitmap usage)
+    : CryptoKey(algorithm, CryptoKeyType::Secret, extractable, usage)
+    , m_key(WTFMove(key))
+{
+    ASSERT(isValidAESAlgorithm(algorithm));
+}
+
+CryptoKeyAES::~CryptoKeyAES() = default;
+
+bool CryptoKeyAES::isValidAESAlgorithm(CryptoAlgorithmIdentifier algorithm)
+{
+    return algorithm == CryptoAlgorithmIdentifier::AES_CTR
+        || algorithm == CryptoAlgorithmIdentifier::AES_CBC
+        || algorithm == CryptoAlgorithmIdentifier::AES_GCM
+        || algorithm == CryptoAlgorithmIdentifier::AES_CFB
+        || algorithm == CryptoAlgorithmIdentifier::AES_KW;
+}
+
+RefPtr<CryptoKeyAES> CryptoKeyAES::generate(CryptoAlgorithmIdentifier algorithm, size_t lengthBits, bool extractable, CryptoKeyUsageBitmap usages)
+{
+    if (!lengthIsValid(lengthBits))
+        return nullptr;
+    return adoptRef(new CryptoKeyAES(algorithm, randomData(lengthBits / 8), extractable, usages));
+}
+
+RefPtr<CryptoKeyAES> CryptoKeyAES::importRaw(CryptoAlgorithmIdentifier algorithm, Vector<uint8_t>&& keyData, bool extractable, CryptoKeyUsageBitmap usages)
+{
+    if (!lengthIsValid(keyData.size() * 8))
+        return nullptr;
+    return adoptRef(new CryptoKeyAES(algorithm, WTFMove(keyData), extractable, usages));
+}
+
+RefPtr<CryptoKeyAES> CryptoKeyAES::importJwk(CryptoAlgorithmIdentifier algorithm, JsonWebKey&& keyData, bool extractable, CryptoKeyUsageBitmap usages, CheckAlgCallback&& callback)
+{
+    if (keyData.kty != "oct"_s)
+        return nullptr;
+    if (keyData.k.isNull())
+        return nullptr;
+    auto octetSequence = base64URLDecode(keyData.k);
+    if (!octetSequence)
+        return nullptr;
+    if (!callback(octetSequence->size() * 8, keyData.alg))
+        return nullptr;
+    if (usages && !keyData.use.isNull() && keyData.use != "enc"_s)
+        return nullptr;
+    if (keyData.key_ops && ((keyData.usages & usages) != usages))
+        return nullptr;
+    if (keyData.ext && !keyData.ext.value() && extractable)
+        return nullptr;
+
+    return adoptRef(new CryptoKeyAES(algorithm, WTFMove(*octetSequence), extractable, usages));
+}
+
+JsonWebKey CryptoKeyAES::exportJwk() const
+{
+    JsonWebKey result;
+    result.kty = "oct"_s;
+    result.k = base64URLEncodeToString(m_key);
+    result.key_ops = usages();
+    result.ext = extractable();
+    return result;
+}
+
+ExceptionOr<size_t> CryptoKeyAES::getKeyLength(const CryptoAlgorithmParameters& parameters)
+{
+    auto& aesParameters = downcast<CryptoAlgorithmAesKeyParams>(parameters);
+    if (!lengthIsValid(aesParameters.length))
+        return Exception { OperationError };
+    return aesParameters.length;
+}
+
+auto CryptoKeyAES::algorithm() const -> KeyAlgorithm
+{
+    CryptoAesKeyAlgorithm result;
+    result.name = CryptoAlgorithmRegistry::singleton().name(algorithmIdentifier());
+    result.length = m_key.size() * 8;
+    return result;
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(WEB_CRYPTO)