feat(Core/Crypto): add support `OpenSSL 3.0` (#13354)

1 files changed, 94 insertions, 64 deletions

diff --git a/src/common/Cryptography/CryptoHash.h b/src/common/Cryptography/CryptoHash.h
index e2f38da8d8..1763351bc7 100644
--- a/src/common/Cryptography/CryptoHash.h
+++ b/src/common/Cryptography/CryptoHash.h
@@ -19,12 +19,12 @@
 #define AZEROTHCORE_CRYPTOHASH_H
 
 #include "CryptoConstants.h"
-#include "Define.h"
 #include "Errors.h"
 #include <array>
 #include <openssl/evp.h>
 #include <string>
 #include <string_view>
+#include <utility>
 
 class BigNumber;
 
@@ -35,10 +35,10 @@ namespace Acore::Impl
         typedef EVP_MD const* (*HashCreator)();
 
 #if defined(OPENSSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x10100000L
-        static EVP_MD_CTX* MakeCTX() { return EVP_MD_CTX_create(); }
+        static EVP_MD_CTX* MakeCTX() noexcept { return EVP_MD_CTX_create(); }
         static void DestroyCTX(EVP_MD_CTX* ctx) { EVP_MD_CTX_destroy(ctx); }
 #else
-        static EVP_MD_CTX* MakeCTX() { return EVP_MD_CTX_new(); }
+        static EVP_MD_CTX* MakeCTX() noexcept { return EVP_MD_CTX_new(); }
         static void DestroyCTX(EVP_MD_CTX* ctx) { EVP_MD_CTX_free(ctx); }
 #endif
     };
@@ -46,74 +46,104 @@ namespace Acore::Impl
     template <GenericHashImpl::HashCreator HashCreator, size_t DigestLength>
     class GenericHash
     {
-    public:
-        static constexpr size_t DIGEST_LENGTH = DigestLength;
-        using Digest = std::array<uint8, DIGEST_LENGTH>;
-
-        static Digest GetDigestOf(uint8 const* data, size_t len)
-        {
-            GenericHash hash;
-            hash.UpdateData(data, len);
-            hash.Finalize();
-            return hash.GetDigest();
-        }
-
-        template <typename... Ts>
-        static auto GetDigestOf(Ts&& ... pack) -> std::enable_if_t < !(std::is_integral_v<std::decay_t<Ts>> || ...), Digest >
-        {
-            GenericHash hash;
-            (hash.UpdateData(std::forward<Ts>(pack)), ...);
-            hash.Finalize();
-            return hash.GetDigest();
-        }
-
-        GenericHash() : _ctx(GenericHashImpl::MakeCTX())
-        {
-            int result = EVP_DigestInit_ex(_ctx, HashCreator(), nullptr);
-            ASSERT(result == 1);
-        }
-
-        ~GenericHash()
-        {
-            if (!_ctx)
+        public:
+            static constexpr size_t DIGEST_LENGTH = DigestLength;
+            using Digest = std::array<uint8, DIGEST_LENGTH>;
+
+            static Digest GetDigestOf(uint8 const* data, size_t len)
+            {
+                GenericHash hash;
+                hash.UpdateData(data, len);
+                hash.Finalize();
+                return hash.GetDigest();
+            }
+
+            template <typename... Ts>
+            static auto GetDigestOf(Ts&&... pack) -> std::enable_if_t<!(std::is_integral_v<std::decay_t<Ts>> || ...), Digest>
+            {
+                GenericHash hash;
+                (hash.UpdateData(std::forward<Ts>(pack)), ...);
+                hash.Finalize();
+                return hash.GetDigest();
+            }
+
+            GenericHash() : _ctx(GenericHashImpl::MakeCTX())
+            {
+                int result = EVP_DigestInit_ex(_ctx, HashCreator(), nullptr);
+                ASSERT(result == 1);
+            }
+
+            GenericHash(GenericHash const& right) : _ctx(GenericHashImpl::MakeCTX())
+            {
+                *this = right;
+            }
+
+            GenericHash(GenericHash&& right) noexcept
+            {
+                *this = std::move(right);
+            }
+
+            ~GenericHash()
+            {
+                if (!_ctx)
+                    return;
+                GenericHashImpl::DestroyCTX(_ctx);
+                _ctx = nullptr;
+            }
+
+            GenericHash& operator=(GenericHash const& right)
             {
-                return;
+                if (this == &right)
+                    return *this;
+
+                int result = EVP_MD_CTX_copy_ex(_ctx, right._ctx);
+                ASSERT(result == 1);
+                _digest = right._digest;
+                return *this;
             }
-            GenericHashImpl::DestroyCTX(_ctx);
-            _ctx = nullptr;
-        }
-
-        void UpdateData(uint8 const* data, size_t len)
-        {
-            int result = EVP_DigestUpdate(_ctx, data, len);
-            ASSERT(result == 1);
-        }
-        void UpdateData(std::string_view str) { UpdateData(reinterpret_cast<uint8 const*>(str.data()), str.size()); }
-        void UpdateData(std::string const& str) { UpdateData(std::string_view(str)); } /* explicit overload to avoid using the container template */
-        void UpdateData(char const* str) { UpdateData(std::string_view(str)); } /* explicit overload to avoid using the container template */
-        template <typename Container>
-        void UpdateData(Container const& c) { UpdateData(std::data(c), std::size(c)); }
-
-        void Finalize()
-        {
-            uint32 length;
-            int result = EVP_DigestFinal_ex(_ctx, _digest.data(), &length);
-            ASSERT(result == 1);
-            ASSERT(length == DIGEST_LENGTH);
-            GenericHashImpl::DestroyCTX(_ctx);
-            _ctx = nullptr;
-        }
-
-        Digest const& GetDigest() const { return _digest; }
-
-    private:
-        EVP_MD_CTX* _ctx;
-        Digest _digest = { };
+
+            GenericHash& operator=(GenericHash&& right) noexcept
+            {
+                if (this == &right)
+                    return *this;
+
+                _ctx = std::exchange(right._ctx, GenericHashImpl::MakeCTX());
+                _digest = std::exchange(right._digest, Digest{});
+                return *this;
+            }
+
+            void UpdateData(uint8 const* data, size_t len)
+            {
+                int result = EVP_DigestUpdate(_ctx, data, len);
+                ASSERT(result == 1);
+            }
+
+            void UpdateData(std::string_view str) { UpdateData(reinterpret_cast<uint8 const*>(str.data()), str.size()); }
+            void UpdateData(std::string const& str) { UpdateData(std::string_view(str)); } /* explicit overload to avoid using the container template */
+            void UpdateData(char const* str) { UpdateData(std::string_view(str)); } /* explicit overload to avoid using the container template */
+
+            template <typename Container>
+            void UpdateData(Container const& c) { UpdateData(std::data(c), std::size(c)); }
+
+            void Finalize()
+            {
+                uint32 length;
+                int result = EVP_DigestFinal_ex(_ctx, _digest.data(), &length);
+                ASSERT(result == 1);
+                ASSERT(length == DIGEST_LENGTH);
+            }
+
+            Digest const& GetDigest() const { return _digest; }
+
+        private:
+            EVP_MD_CTX* _ctx{};
+            Digest _digest{};
     };
 }
 
 namespace Acore::Crypto
 {
+    using MD5 = Acore::Impl::GenericHash<EVP_md5, Constants::MD5_DIGEST_LENGTH_BYTES>;
     using SHA1 = Acore::Impl::GenericHash<EVP_sha1, Constants::SHA1_DIGEST_LENGTH_BYTES>;
     using SHA256 = Acore::Impl::GenericHash<EVP_sha256, Constants::SHA256_DIGEST_LENGTH_BYTES>;
 }