Add axTLS, first draft of WiFiClientSecure (#43)

libraries/ESP8266WiFi/src/WiFiClientSecure.h

@@ -0,0 +1,51 @@
+/*
+  WiFiClientSecure.h - Variant of WiFiClient with TLS support
+  Copyright (c) 2015 Ivan Grokhotkov. All rights reserved.
+  This file is part of the esp8266 core for Arduino environment.
+
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
+
+#ifndef wificlientsecure_h
+#define wificlientsecure_h
+#include "WiFiClient.h"
+#include "include/ssl.h"
+
+
+class SSLContext;
+
+class WiFiClientSecure : public WiFiClient {
+public:
+  WiFiClientSecure();
+  ~WiFiClientSecure() override;
+  WiFiClientSecure(const WiFiClientSecure&);
+  WiFiClientSecure& operator=(const WiFiClientSecure&);
+
+  int connect(IPAddress ip, uint16_t port) override;
+  int connect(const char* name, uint16_t port) override;
+
+  size_t write(const uint8_t *buf, size_t size) override;
+  int read(uint8_t *buf, size_t size) override;
+  void stop() override;
+
+protected:
+    int _connectSSL();
+
+    SSLContext* _ssl;
+};
+
+#endif //wificlientsecure_h