Added bson support for user message protocol. (#99)

src/msg/usrmsg_parser.hpp

@@ -0,0 +1,44 @@
+#ifndef _HP_MSG_USRMSG_PARSER_
+#define _HP_MSG_USRMSG_PARSER_
+
+#include "../util.hpp"
+#include "../pchheader.hpp"
+
+namespace msg::usrmsg
+{
+    // Forward declaration
+    class usrmsg_parser;
+
+    class usrmsg_parser
+    {
+        const util::PROTOCOL protocol;
+        rapidjson::Document jsonDoc;
+        jsoncons::ojson bsonDoc;
+
+    public:
+        usrmsg_parser(const util::PROTOCOL protocol);
+
+        void create_status_response(std::vector<uint8_t> &msg) const;
+
+        void create_contract_input_status(std::vector<uint8_t> &msg, std::string_view status,
+                                          std::string_view reason, std::string_view input_sig) const;
+
+        void create_contract_read_response_container(std::vector<uint8_t> &msg, std::string_view content) const;
+
+        void create_contract_output_container(std::vector<uint8_t> &msg, std::string_view content) const;
+
+        int parse(std::string_view message);
+
+        int extract_type(std::string &extracted_type) const;
+
+        int extract_read_request(std::string &extracted_content) const;
+
+        int extract_signed_input_container(std::string &extracted_input_container, std::string &extracted_sig) const;
+
+        int extract_input_container(std::string &input, std::string &nonce,
+                                    uint64_t &max_lcl_seqno, std::string_view encoded_content) const;
+    };
+
+} // namespace msg::usrmsg
+
+#endif