text: // Copyright (c) 2010 Satoshi Nakamoto
  // Copyright (c) 2009-2014 The Bitcoin developers
  // Copyright (c) 2017-2019 The PIVX developers
  // Copyright (c) 2021 The ISLAMIC DIGITAL COIN developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #ifndef BITCOIN_RPCPROTOCOL_H
  #define BITCOIN_RPCPROTOCOL_H
  
  #include "fs.h"
  
  #include <list>
  #include <map>
  #include <stdint.h>
  #include <string>
  
  #include <univalue.h>
  
  //! HTTP status codes
  enum HTTPStatusCode {
      HTTP_OK                    = 200,
      HTTP_BAD_REQUEST           = 400,
      HTTP_UNAUTHORIZED          = 401,
      HTTP_FORBIDDEN             = 403,
      HTTP_NOT_FOUND             = 404,
      HTTP_BAD_METHOD            = 405,
      HTTP_INTERNAL_SERVER_ERROR = 500,
      HTTP_SERVICE_UNAVAILABLE   = 503,
  };
  
  //! ISLAMIC_DIGITAL_COIN RPC error codes
  enum RPCErrorCode {
      //! Standard JSON-RPC 2.0 errors
      RPC_INVALID_REQUEST     = -32600,
      RPC_METHOD_NOT_FOUND    = -32601,
      RPC_INVALID_PARAMS      = -32602,
      RPC_INTERNAL_ERROR      = -32603,
      RPC_PARSE_ERROR         = -32700,
  
      //! General application defined errors
      RPC_MISC_ERROR                      = -1, //! std::exception thrown in command handling
      RPC_FORBIDDEN_BY_SAFE_MODE          = -2, //! Server is in safe mode, and command is not allowed in safe mode
      RPC_TYPE_ERROR                      = -3, //! Unexpected type was passed as parameter
      RPC_INVALID_ADDRESS_OR_KEY          = -5, //! Invalid address or key
      RPC_OUT_OF_MEMORY                   = -7, //! Ran out of memory during operation
      RPC_INVALID_PARAMETER               = -8, //! Invalid, missing or duplicate parameter
      RPC_DATABASE_ERROR                  = -20, //! Database error
      RPC_DESERIALIZATION_ERROR           = -22, //! Error parsing or validating structure in raw format
      RPC_VERIFY_ERROR                    = -25, //! General error during transaction or block submission
      RPC_VERIFY_REJECTED                 = -26, //! Transaction or block was rejected by network rules
      RPC_VERIFY_ALREADY_IN_CHAIN         = -27, //! Transaction already in chain
      RPC_IN_WARMUP                       = -28, //! Client still warming up
      RPC_METHOD_DEPRECATED               = -32, //! RPC method is deprecated
  
      //! Aliases for backward compatibility
      RPC_TRANSACTION_ERROR               = RPC_VERIFY_ERROR,
      RPC_TRANSACTION_REJECTED            = RPC_VERIFY_REJECTED,
      RPC_TRANSACTION_ALREADY_IN_CHAIN    = RPC_VERIFY_ALREADY_IN_CHAIN,
  
      //! P2P client errors
      RPC_CLIENT_NOT_CONNECTED            = -9, //! ISLAMIC_DIGITAL_COIN is not connected
      RPC_CLIENT_IN_INITIAL_DOWNLOAD      = -10, //! Still downloading initial blocks
      RPC_CLIENT_NODE_ALREADY_ADDED       = -23, //! Node is already added
      RPC_CLIENT_NODE_NOT_ADDED           = -24, //! Node has not been added before
      RPC_CLIENT_NODE_NOT_CONNECTED       = -29, //! Node to disconnect not found in connected nodes
      RPC_CLIENT_INVALID_IP_OR_SUBNET     = -30, //! Invalid IP/Subnet
      RPC_CLIENT_P2P_DISABLED             = -31, //! No valid connection manager instance found
  
      //! Wallet errors
      RPC_WALLET_ERROR                    = -4, //! Unspecified problem with wallet (key not found etc.)
      RPC_WALLET_INSUFFICIENT_FUNDS       = -6, //! Not enough funds in wallet
      RPC_WALLET_INVALID_LABEL_NAME       = -11, //! Invalid label name
      RPC_WALLET_KEYPOOL_RAN_OUT          = -12, //! Keypool ran out, call keypoolrefill first
      RPC_WALLET_UNLOCK_NEEDED            = -13, //! Enter the wallet passphrase with walletpassphrase first
      RPC_WALLET_PASSPHRASE_INCORRECT     = -14, //! The wallet passphrase entered was incorrect
      RPC_WALLET_WRONG_ENC_STATE          = -15, //! Command given in wrong wallet encryption state (encrypting an encrypted wallet etc.)
      RPC_WALLET_ENCRYPTION_FAILED        = -16, //! Failed to encrypt the wallet
      RPC_WALLET_ALREADY_UNLOCKED         = -17, //! Wallet is already unlocked
  };
  
  UniValue JSONRPCRequestObj(const std::string& strMethod, const UniValue& params, const UniValue& id);
  UniValue JSONRPCReplyObj(const UniValue& result, const UniValue& error, const UniValue& id);
  std::string JSONRPCReply(const UniValue& result, const UniValue& error, const UniValue& id);
  UniValue JSONRPCError(int code, const std::string& message);
  
  /** Get name of RPC authentication cookie file */
  fs::path GetAuthCookieFile();
  /** Generate a new RPC authentication cookie and write it to disk */
  bool GenerateAuthCookie(std::string *cookie_out);
  /** Read the RPC authentication cookie from disk */
  bool GetAuthCookie(std::string *cookie_out);
  /** Delete RPC authentication cookie from disk */
  void DeleteAuthCookie();
  
  #endif // BITCOIN_RPCPROTOCOL_H
  