ESP8266_Treppenlicht/lib/httpserver/httpserver.cpp

#include "httpserver.h"

auto HTTPServer::start() -> bool {
  if (!mount_fs()) {
    logf("cant mount filesystem, EXIT !\n\r");
    return false;
  }

  logf("LittleFS mounted !\n\r");
  logf("root:\n\r");
  this->listRoot();
  logf("\n\r");

  // default handler
  this->onNotFound([this]() {
    String message = "File Not Found\n\n";
    message += "URI: ";
    message += uri();
    message += "\nMethod: ";
    message += (method() == HTTP_GET) ? "GET" : "POST";
    message += "\nArguments: ";
    message += args();
    message += "\n";

    for (uint8_t i = 0; i < args(); i++) {
      message += " " + argName(i) + ": " + arg(i) + "\n";
    }
    send(404, "text/plain", message);
  });

  // add static root file handler for http
  this->serveStatic("/", LittleFS, "/");
  this->begin();
  logf("Server active on Port 80 !\n\r");
  return true;
}

void HTTPServer::start_apps() {
  this->on("/action", HTTP_POST, [this]() {
    if (args()) {
      logf("%s=%s\n", argName(0).c_str(), arg(0).c_str());

      if (argName(0).equals("control")) {
        if (arg(0).equals("s_oben")) {
          treppe->overwrite_sensors(true, false);
          logt("control => s_oben !\n");
        }
        else if (arg(0).equals("s_unten")) {
          treppe->overwrite_sensors(false, true);
          logt("control => s_unten !\n");
        }
      }
    }
    send(200, "text/plain", "accepted");
  });

  this->on("/update", HTTP_POST, [this]() {
    if (args()) {
      for (int i = 0; i < args() - 1; i++) {
        logf("%s=%s\n", argName(i).c_str(), arg(i).c_str());

        if (argName(i).equals("range_act_pwm")) {
          treppe->set_active_pwm(arg(i).toInt(), VORGABE_PROZENT);
          logt("set_active_pwm = %d %\n", arg(i).toInt());
        }
        else if (argName(i).equals("range_idl_pwm")) {
          treppe->set_idle_pwm_max(arg(i).toInt(), VORGABE_PROZENT);
          logt("set_idle_pwm_max = %d %\n", arg(i).toInt());
        }
        else if (argName(i).equals("range_tim_sta")) {
          treppe->set_time_per_stair(arg(i).toInt());
          logt("set_time_per_stair = %d\n", arg(i).toInt());
        }
        else if (argName(i).equals("range_tim_ldr")) {
          treppe->set_time_ldr(arg(i).toInt());
          logt("set_time_ldr = %d\n", arg(i).toInt());
        }
        else if (argName(i).equals("range_ldr_shw")) {
          treppe->set_ldr_schwelle(arg(i).toInt(), VORGABE_12BIT);
          logt("set_ldr_schwelle = %d %\n", arg(i).toInt());
        }

      }
    }
    send(200, "text/plain", "accepted");
  });

  this->on("/terminal", HTTP_POST, [this]() {
    // logf("got /terminal\n");
    if (tbuf_head) {
      send(200, "text/plain", tbuf);
      tbuf_head = 0;
    } else {
      send(202, "text/plain", "");
    }
  });

  this->on("/parameters", HTTP_POST, [this]() {
    logt("got /parameters\n");
    char json_str[255];
    treppe->param_to_json(json_str, 255);
    logt("%s\n", json_str);
    send(200, "application/json", json_str);
  });
}

template <class... Args>
void HTTPServer::logf(const char *format, Args... args) const {
  Serial.print(log_prefix);
  Serial.printf(format, args...);
}

void HTTPServer::logt(const char *format, ...) {
  va_list args;
  va_start(args, format);
  // append logging string to local buffer
  if (tbuf_head < TBUF_LEN) {
    tbuf_head +=
        vsnprintf(tbuf + tbuf_head, TBUF_LEN - tbuf_head, format, args);
  }
  va_end(args);
}