Add Exceptions.hpp

navicat-patcher/Exceptions.hpp

@@ -0,0 +1,98 @@
+#pragma once
+#include <system_error>
+#include <openssl/err.h>
+
+namespace Patcher {
+
+    class Exception {
+    private:
+        const char* const _FileName;
+        const int _NumberOfLine;
+        const char* _CustomMessage;
+    public:
+
+        Exception(const char* FileName, int Line, const char* Message) noexcept :
+            _FileName(FileName),
+            _NumberOfLine(Line),
+            _CustomMessage(Message) {}
+
+        const char* SourceFile() const noexcept {
+            return _FileName;
+        }
+
+        int SourceLine() const noexcept {
+            return _NumberOfLine;
+        }
+
+        const char* CustomMessage() const noexcept {
+            return _CustomMessage;
+        }
+
+        virtual bool HasErrorCode() const noexcept {
+            return false;
+        }
+
+        virtual unsigned long ErrorCode() const noexcept {
+            return 0;
+        }
+
+        virtual const char* ErrorString() const noexcept {
+            return nullptr;
+        }
+
+    };
+
+    class SystemError : public Exception {
+    private:
+        const std::error_code _ErrorCode;
+    public:
+        SystemError(const char* FileName,
+                    int Line,
+                    unsigned long Code,
+                    const char* Message) noexcept :
+            Exception(FileName, Line, Message),
+            _ErrorCode(Code, std::system_category()) {}
+
+        virtual bool HasErrorCode() const noexcept override {
+            return true;
+        }
+
+        virtual unsigned long ErrorCode() const noexcept override {
+            return _ErrorCode.value();
+        }
+
+        virtual const char* ErrorString() const noexcept override {
+            return _ErrorCode.message().c_str();
+        }
+    };
+
+    class OpensslException : public Exception {
+    private:
+        const unsigned long _ErrorCode;
+    public:
+
+        OpensslException(const char* FileName, 
+                         int Line, 
+                         unsigned long Code, 
+                         const char* Message) noexcept :
+            Exception(FileName, Line, Message), 
+            _ErrorCode(Code) {}
+
+        virtual bool HasErrorCode() const noexcept override {
+            return true;
+        }
+
+        virtual unsigned long ErrorCode() const noexcept override {
+            return _ErrorCode;
+        }
+
+        virtual const char* ErrorString() const noexcept override {
+            return ERR_error_string(_ErrorCode, nullptr);
+        }
+
+    };
+
+}
+
+
+