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

src/msg/json/usrmsg_json.hpp

@@ -0,0 +1,37 @@
+#ifndef _HP_MSG_JSON_USRMSG_JSON_
+#define _HP_MSG_JSON_USRMSG_JSON_
+
+#include "../../pchheader.hpp"
+
+namespace msg::usrmsg::json
+{
+
+    void create_user_challenge(std::vector<uint8_t> &msg, std::string &challengehex);
+
+    void create_status_response(std::vector<uint8_t> &msg);
+
+    void create_contract_input_status(std::vector<uint8_t> &msg, std::string_view status, std::string_view reason,
+                                      std::string_view input_sig);
+
+    void create_contract_read_response_container(std::vector<uint8_t> &msg, std::string_view content);
+
+    void create_contract_output_container(std::vector<uint8_t> &msg, std::string_view content);
+
+    int verify_user_handshake_response(std::string &extracted_pubkeyhex, std::string &extracted_protocol,
+                                       std::string_view response, std::string_view original_challenge);
+
+    int parse_user_message(rapidjson::Document &d, std::string_view message);
+
+    int extract_type(std::string &extracted_type, const rapidjson::Document &d);
+
+    int extract_read_request(std::string &extracted_content, const rapidjson::Document &d);
+
+    int extract_signed_input_container(std::string &extracted_input_container, std::string &extracted_sig,
+                                       const rapidjson::Document &d);
+
+    int extract_input_container(std::string &input, std::string &nonce,
+                                uint64_t &max_lcl_seqno, std::string_view contentjson);
+
+} // namespace msg::usrmsg::json
+
+#endif