copy thecodrr/vws to vlib/net/websocket

vlib/net/websocket/ws/ssl.v

@@ -0,0 +1,46 @@
+module ws
+
+#flag -lssl
+#include <openssl/rand.h>
+#include <openssl/ssl.h>
+#include <openssl/err.h>
+
+struct C.SSL_CTX
+struct C.SSL
+struct C.SSL_METHOD
+fn C.SSL_load_error_strings()
+fn C.SSL_library_init()
+fn C.SSLv23_client_method() &SSL_METHOD
+fn C.SSL_CTX_new() &SSL_CTX
+fn C.SSL_new() &SSL
+fn C.SSL_set_fd() int
+fn C.SSL_connect() int
+fn C.SSL_shutdown()
+fn C.SSL_free()
+fn C.SSL_CTX_free()
+fn C.SSL_write() int
+fn C.SSL_read() int
+
+fn (ws mut Client) connect_ssl(){
+	l.i("Using secure SSL connection")
+	C.SSL_load_error_strings()
+	C.SSL_library_init()
+
+	ws.sslctx = SSL_CTX_new(SSLv23_client_method())
+	if ws.sslctx == C.NULL {
+		l.f("Couldn't get ssl context")
+	}
+
+	ws.ssl = SSL_new(ws.sslctx)
+	if ws.ssl == C.NULL {
+		l.f("Couldn't create OpenSSL instance.")
+	}
+
+	if SSL_set_fd(ws.ssl, ws.socket.sockfd) != 1 {
+		l.f("Couldn't assign ssl to socket.")
+	}
+
+	if SSL_connect(ws.ssl) != 1 {
+		l.f("Couldn't connect using SSL.")
+	}
+}