HTTPSServerConstants.hpp

#ifndef SRC_HTTPSSERVERCONSTANTS_HPP_
#define SRC_HTTPSSERVERCONSTANTS_HPP_

#include "Arduino.h"

// 1: Error
// 2: Error + Warn
// 3: Error + Warn + Info
// 4: Error + Warn + Info + Debug

#ifndef HTTPS_LOGLEVEL
  #define HTTPS_LOGLEVEL 3
#endif

#ifdef HTTPS_LOGTIMESTAMP
  #define HTTPS_LOGTAG(LVL) Serial.printf("[HTTPS:" LVL ":%10lu] ", millis())
#else
  #define HTTPS_LOGTAG(LVL) Serial.print("[HTTPS:" LVL "] ")
#endif

#if HTTPS_LOGLEVEL > 0
  #define HTTPS_LOGE(...) HTTPS_LOGTAG("E");Serial.printf(__VA_ARGS__);Serial.println()
#else
  #define HTTPS_LOGE(...) do {} while (0)
#endif

#if HTTPS_LOGLEVEL > 1
  #define HTTPS_LOGW(...) HTTPS_LOGTAG("W");Serial.printf(__VA_ARGS__);Serial.println()
#else
  #define HTTPS_LOGW(...) do {} while (0)
#endif

#if HTTPS_LOGLEVEL > 2
  #define HTTPS_LOGI(...) HTTPS_LOGTAG("I");Serial.printf(__VA_ARGS__);Serial.println()
#else
  #define HTTPS_LOGI(...) do {} while (0)
#endif

#if HTTPS_LOGLEVEL > 3
  #define HTTPS_LOGD(...) HTTPS_LOGTAG("D");Serial.printf(__VA_ARGS__);Serial.println()
#else
  #define HTTPS_LOGD(...) do {} while (0)
#endif

// The following lines define limits of the protocol. Exceeding these limits will lead to a 500 error

// Maximum of header lines that are parsed
#define HTTPS_REQUEST_MAX_HEADERS               20

// Maximum length of the request line (GET /... HTTP/1.1)
#define HTTPS_REQUEST_MAX_REQUEST_LENGTH       128

// Maximum length of a header line (including name and value)
#define HTTPS_REQUEST_MAX_HEADER_LENGTH        384

// Chunk size used for reading data from the ssl-enabled socket
#define HTTPS_CONNECTION_DATA_CHUNK_SIZE       512

// Size (in bytes) of the Connection:keep-alive Cache (we need to be able to
// store-and-forward the response to calculate the content-size)
#define HTTPS_KEEPALIVE_CACHESIZE              1400

// Timeout for an HTTPS connection without any transmission
#define HTTPS_CONNECTION_TIMEOUT               20000

// Timeout used to wait for shutdown of SSL connection (ms)
// (time for the client to return notify close flag) - without it, truncation attacks might be possible
#define HTTPS_SHUTDOWN_TIMEOUT                 5000

// Length of a SHA1 hash
#define HTTPS_SHA1_LENGTH                      20

#endif /* SRC_HTTPSSERVERCONSTANTS_HPP_ */