1 files changed, 151 insertions, 0 deletions
diff --git a/src/bun.js/bindings/webcrypto/CryptoDigest.cpp b/src/bun.js/bindings/webcrypto/CryptoDigest.cpp
new file mode 100644
index 000000000..8704c0c08
--- /dev/null
+++ b/src/bun.js/bindings/webcrypto/CryptoDigest.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2018 Sony Interactive Entertainment Inc.
+ *
+ * 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 "CryptoDigest.h"
+
+#include <openssl/sha.h>
+
+namespace {
+struct SHA1Functions {
+    static constexpr auto init = SHA1_Init;
+    static constexpr auto update = SHA1_Update;
+    static constexpr auto final = SHA1_Final;
+    static constexpr size_t digestLength = SHA_DIGEST_LENGTH;
+};
+
+struct SHA224Functions {
+    static constexpr auto init = SHA224_Init;
+    static constexpr auto update = SHA224_Update;
+    static constexpr auto final = SHA224_Final;
+    static constexpr size_t digestLength = SHA224_DIGEST_LENGTH;
+};
+
+struct SHA256Functions {
+    static constexpr auto init = SHA256_Init;
+    static constexpr auto update = SHA256_Update;
+    static constexpr auto final = SHA256_Final;
+    static constexpr size_t digestLength = SHA256_DIGEST_LENGTH;
+};
+
+struct SHA384Functions {
+    static constexpr auto init = SHA384_Init;
+    static constexpr auto update = SHA384_Update;
+    static constexpr auto final = SHA384_Final;
+    static constexpr size_t digestLength = SHA384_DIGEST_LENGTH;
+};
+
+struct SHA512Functions {
+    static constexpr auto init = SHA512_Init;
+    static constexpr auto update = SHA512_Update;
+    static constexpr auto final = SHA512_Final;
+    static constexpr size_t digestLength = SHA512_DIGEST_LENGTH;
+};
+}
+
+namespace PAL {
+
+struct CryptoDigestContext {
+    virtual ~CryptoDigestContext() = default;
+    virtual void addBytes(const void* input, size_t length) = 0;
+    virtual Vector<uint8_t> computeHash() = 0;
+};
+
+template<typename SHAContext, typename SHAFunctions>
+struct CryptoDigestContextImpl : public CryptoDigestContext {
+    WTF_MAKE_STRUCT_FAST_ALLOCATED;
+
+    static std::unique_ptr<CryptoDigestContext> create()
+    {
+        return makeUnique<CryptoDigestContextImpl>();
+    }
+
+    CryptoDigestContextImpl()
+    {
+        SHAFunctions::init(&m_context);
+    }
+
+    void addBytes(const void* input, size_t length) override
+    {
+        SHAFunctions::update(&m_context, input, length);
+    }
+
+    Vector<uint8_t> computeHash() override
+    {
+        Vector<uint8_t> result(SHAFunctions::digestLength);
+        SHAFunctions::final(result.data(), &m_context);
+        return result;
+    }
+
+private:
+    SHAContext m_context;
+};
+
+CryptoDigest::CryptoDigest()
+{
+}
+
+CryptoDigest::~CryptoDigest()
+{
+}
+
+std::unique_ptr<CryptoDigest> CryptoDigest::create(CryptoDigest::Algorithm algorithm)
+{
+    std::unique_ptr<CryptoDigest> digest(new CryptoDigest);
+
+    switch (algorithm) {
+    case CryptoDigest::Algorithm::SHA_1:
+        digest->m_context = CryptoDigestContextImpl<SHA_CTX, SHA1Functions>::create();
+        return digest;
+    case CryptoDigest::Algorithm::SHA_224:
+        digest->m_context = CryptoDigestContextImpl<SHA256_CTX, SHA224Functions>::create();
+        return digest;
+    case CryptoDigest::Algorithm::SHA_256:
+        digest->m_context = CryptoDigestContextImpl<SHA256_CTX, SHA256Functions>::create();
+        return digest;
+    case CryptoDigest::Algorithm::SHA_384:
+        digest->m_context = CryptoDigestContextImpl<SHA512_CTX, SHA384Functions>::create();
+        return digest;
+    case CryptoDigest::Algorithm::SHA_512:
+        digest->m_context = CryptoDigestContextImpl<SHA512_CTX, SHA512Functions>::create();
+        return digest;
+    }
+
+    return nullptr;
+}
+
+void CryptoDigest::addBytes(const void* input, size_t length)
+{
+    ASSERT(m_context);
+    m_context->addBytes(input, length);
+}
+
+Vector<uint8_t> CryptoDigest::computeHash()
+{
+    ASSERT(m_context);
+    return m_context->computeHash();
+}
+
+} // namespace PAL