First release of open-appsec source code

core/message/http_decoder.h

@@ -0,0 +1,55 @@
+// Copyright (C) 2022 Check Point Software Technologies Ltd. All rights reserved.
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef __HTTP_DECODDER_H__
+#define __HTTP_DECODDER_H__
+
+#include <string>
+
+#include "singleton.h"
+#include "maybe_res.h"
+#include "messaging/http_core.h"
+#include "i_message_decoder.h"
+#include "i_messaging.h"
+#include "i_environment.h"
+
+class HTTPDecoder
+        :
+    public I_MessageDecoder <HTTPResponse>,
+    Singleton::Consume<I_Environment>
+{
+public:
+    HTTPDecoder(I_Messaging::Method _method);
+
+    Maybe<HTTPResponse> decodeBytes(const std::string &data) override;
+
+private:
+    Maybe<HTTPHeaders> handleHeaders();
+    Maybe<HTTPStatusCode> parseStatusLine();
+    bool handleBody();
+
+    bool getChunkedResponse();
+    bool getChunkedResponseK8s();
+    bool isLegalChunkedResponse(const std::string &res);
+
+    I_Messaging::Method method;
+    bool connection_is_closed = false;
+
+    Maybe<HTTPStatusCode> status_code;
+    Maybe<HTTPHeaders> headers;
+    std::string response;
+    std::string body;
+    size_t body_size = 0;
+};
+
+#endif // __HTTP_DECODDER_H__