fix(Redis): Poco::Redis after executing auth command next command alw…

…ays return OK #2457

Redis/include/Poco/Redis/Client.h

@@ -119,6 +119,12 @@ class Redis_API Client
 	bool isConnected() const;
 		/// Returns true iff the Client is connected to a Redis server.
 
+	bool sendAuth(const std::string& password);
+		/// Sends password to Redis server
+
+	bool isAuthenticated();
+		/// Returns true when the client is authenticated
+
 	template<typename T>
 	T execute(const Array& command)
 		/// Sends the Redis Command to the server. It gets the reply
@@ -199,6 +205,7 @@ class Redis_API Client
 	Net::StreamSocket _socket;
 	RedisInputStream* _input;
 	RedisOutputStream* _output;
+	bool _authenticated = false;
 };
 
 
@@ -233,6 +240,12 @@ inline void Client::setReceiveTimeout(const Timespan& timeout)
 }
 
 
+inline bool Client::isAuthenticated()
+{
+    return _authenticated;
+}
+
+
 } } // namespace Poco::Redis
 
 

Redis/src/Client.cpp

@@ -151,6 +151,29 @@ bool Client::isConnected() const
 }
 
 
+bool Client::sendAuth(const std::string& password)
+{
+	Array cmd;
+	cmd << "AUTH" << password;
+
+	bool ret = true;
+	std::string response;
+
+	try
+	{
+		response = execute<std::string>(cmd);
+	}
+	catch (...)
+	{
+		ret = false;
+	}
+
+	_authenticated = (ret && (response == "OK"));
+
+	return _authenticated;
+}
+
+
 void Client::writeCommand(const Array& command, bool doFlush)
 {
 	poco_assert(_output);

Redis/testsuite/src/RedisTest.cpp

@@ -287,7 +287,7 @@ void RedisTest::testDECR()
 
 	try
 	{
-		Poco::Int64 result = _redis.execute<Poco::Int64>(decr);
+		_redis.execute<Poco::Int64>(decr);
 		fail("This must fail");
 	}
 	catch (RedisException& e)