First release of open-appsec source code

components/attachment-intakers/nginx_attachment/nginx_parser.h

@@ -0,0 +1,45 @@
+// 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 __NGINX_PARSER_H__
+#define __NGINX_PARSER_H__
+
+#include <vector>
+
+#include "compression_utils.h"
+#include "nginx_attachment_common.h"
+#include "http_transaction_common.h"
+#include "http_inspection_events.h"
+#include "i_encryptor.h"
+
+class NginxParser : Singleton::Consume<I_Encryptor>
+{
+public:
+    static Maybe<HttpTransactionData> parseStartTrasaction(const Buffer &data);
+    static Maybe<ResponseCode> parseResponseCode(const Buffer &data);
+    static Maybe<uint64_t> parseContentLength(const Buffer &data);
+    static Maybe<std::vector<HttpHeader>> parseRequestHeaders(const Buffer &data);
+    static Maybe<std::vector<HttpHeader>> parseResponseHeaders(const Buffer &data);
+    static Maybe<HttpBody> parseRequestBody(const Buffer &data);
+    static Maybe<HttpBody> parseResponseBody(const Buffer &raw_response_body, CompressionStream *compression_stream);
+    static Maybe<CompressionType> parseContentEncoding(const std::vector<HttpHeader> &headers);
+
+    static Buffer tenant_header_key;
+
+private:
+    static Maybe<CompressionType> convertToContentEncoding(const Buffer &content_encoding_header_value);
+
+    static std::map<Buffer, CompressionType> content_encodings;
+};
+
+#endif // __NGINX_PARSER_H__