Reimplementd IX with OpenSSL

ixwebsocket/include/IXSocketAppleSSL.h

@@ -0,0 +1,52 @@
+/*
+ *  IXSocketAppleSSL.h
+ *  Author: Benjamin Sergeant
+ *  Copyright (c) 2017-2020 Machine Zone, Inc. All rights reserved.
+ */
+#ifdef IXWEBSOCKET_USE_SECURE_TRANSPORT
+
+#pragma once
+
+#include "IXCancellationRequest.h"
+#include "IXSocket.h"
+#include "IXSocketTLSOptions.h"
+#include <Security/SecureTransport.h>
+#include <Security/Security.h>
+#include <mutex>
+
+namespace ix
+{
+    class SocketAppleSSL final : public Socket
+    {
+    public:
+        SocketAppleSSL(const SocketTLSOptions& tlsOptions, int fd = -1);
+        ~SocketAppleSSL();
+
+        virtual bool accept(std::string& errMsg) final;
+
+        virtual bool connect(const std::string& host,
+                             int port,
+                             std::string& errMsg,
+                             const CancellationRequest& isCancellationRequested) final;
+        virtual void close() final;
+
+        virtual ssize_t send(char* buffer, size_t length) final;
+        virtual ssize_t recv(void* buffer, size_t length) final;
+
+    private:
+        static std::string getSSLErrorDescription(OSStatus status);
+        static OSStatus writeToSocket(SSLConnectionRef connection, const void* data, size_t* len);
+        static OSStatus readFromSocket(SSLConnectionRef connection, void* data, size_t* len);
+
+        OSStatus tlsHandShake(std::string& errMsg,
+                              const CancellationRequest& isCancellationRequested);
+
+        SSLContextRef _sslContext;
+        mutable std::mutex _mutex; // AppleSSL routines are not thread-safe
+
+        SocketTLSOptions _tlsOptions;
+    };
+
+} // namespace ix
+
+#endif // IXWEBSOCKET_USE_SECURE_TRANSPORT