text: /*
   * Http.h
   * A HTTP library for the SIM800L board
   *
   * Copyright 2016 Antonio Carrasco
   *
   * The MIT License (MIT)
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  #include "Sim800.h"
  
  /* Result codes */
  enum Result {
    SUCCESS = 0,
    ERROR_INITIALIZATION = 1,
    ERROR_BEARER_PROFILE_GPRS = 2,
    ERROR_BEARER_PROFILE_APN = 3,
    ERROR_OPEN_GPRS_CONTEXT = 4,
    ERROR_QUERY_GPRS_CONTEXT = 5,
    ERROR_CLOSE_GPRS_CONTEXT = 6,
    ERROR_HTTP_INIT = 7,
    ERROR_HTTP_CID = 8,
    ERROR_HTTP_PARA = 9,
    ERROR_HTTP_GET = 10,
    ERROR_HTTP_READ = 11,
    ERROR_HTTP_CLOSE = 12,
    ERROR_HTTP_POST = 13,
    ERROR_HTTP_DATA = 14,
    ERROR_HTTP_CONTENT = 15,
    ERROR_NORMAL_MODE = 16,
    ERROR_LOW_CONSUMPTION_MODE = 17,
    ERROR_HTTPS_ENABLE = 18,
    ERROR_HTTPS_DISABLE = 19
  };
  
  
  class HTTP : public SIM800 {
  
    public:
      HTTP(unsigned int baudRate, unsigned int rxPin, unsigned int txPin, unsigned int rstPin, bool debug = TRUE):SIM800(baudRate, rxPin, txPin, rstPin, debug){};
      Result configureBearer(const char *apn);
      Result connect();
      Result disconnect();
      Result get(const char *uri, char *response);
      Result post(const char *uri, const char *body, char *response);
      void sleep();
      void wakeUp();
      void readVoltage(char *voltage);
  
    private:
      void readResponse(char *response);
      Result setHTTPSession(const char *uri);
      void parseJSONResponse(const char *buffer, unsigned int bufferSize, char *response);
  };