examples/WT32_ETH01/Async-Server/Async-Server.ino

/**
   Example for the WT32_ETH01 HTTP(S) Webserver

   IMPORTANT NOTE:
   To run this script, your need to
    1) Make sure to have certificate data available. You will find a
       shell script (create_cert.sh) and instructions to do so in the library folder
       under extras/

   This script will install an HTTPS Server on your WT32_ETH01 with the following
   functionalities:
    - Show simple page on web server root
    - 404 for everything else
   The server will be run in a separate task, so that you can do your own stuff
   in the loop() function.
   Everything else is just like the Static-Page example
*/

/** Check if we have multiple cores */
#if CONFIG_FREERTOS_UNICORE
  #define ARDUINO_RUNNING_CORE 0
#else
  #define ARDUINO_RUNNING_CORE 1
#endif

// Include certificate data (see note above)
#include "cert.h"
#include "private_key.h"

//////////////////////////////////////////////////

// For WT32_ETH01
#define DEBUG_ETHERNET_WEBSERVER_PORT       Serial

// Debug Level from 0 to 4
#define _ETHERNET_WEBSERVER_LOGLEVEL_       3

#include <WebServer_WT32_ETH01.h>

// Select the IP address according to your local network
IPAddress myIP(192, 168, 2, 232);
IPAddress myGW(192, 168, 2, 1);
IPAddress mySN(255, 255, 255, 0);

// Google DNS Server IP
IPAddress myDNS(8, 8, 8, 8);

//////////////////////////////////////////////////

// Includes for the server
#include <HTTPSServer.hpp>
#include <SSLCert.hpp>
#include <HTTPRequest.hpp>
#include <HTTPResponse.hpp>

// The HTTPS Server comes in a separate namespace. For easier use, include it here.
using namespace httpsserver;

// Create an SSL certificate object from the files included above
SSLCert cert = SSLCert(
                 example_crt_DER, example_crt_DER_len,
                 example_key_DER, example_key_DER_len
               );

// Create an SSL-enabled server that uses the certificate
HTTPSServer secureServer = HTTPSServer(&cert);

void serverTask(void *params) 
{
  // In the separate task we first do everything that we would have done in the
  // setup() function, if we would run the server synchronously.

  // Note: The second task has its own stack, so you need to think about where
  // you create the server's resources and how to make sure that the server
  // can access everything it needs to access. Also make sure that concurrent
  // access is no problem in your sketch or implement countermeasures like locks
  // or mutexes.

  // Create nodes
  ResourceNode * nodeRoot    = new ResourceNode("/", "GET", &handleRoot);
  ResourceNode * node404     = new ResourceNode("", "GET", &handle404);

  // Add nodes to the server
  secureServer.registerNode(nodeRoot);
  secureServer.setDefaultNode(node404);

  Serial.println("Starting server...");
  secureServer.start();
  
  if (secureServer.isRunning()) 
  {
    Serial.println("Server ready.");

    // "loop()" function of the separate task
    while (true) 
    {
      // This call will let the server do its work
      secureServer.loop();

      // Other code would go here...
      delay(1);
    }
  }
}

void handleRoot(HTTPRequest * req, HTTPResponse * res) 
{
  // Status code is 200 OK by default.
  // We want to deliver a simple HTML page, so we send a corresponding content type:
  res->setHeader("Content-Type", "text/html");

  // The response implements the Print interface, so you can use it just like
  // you would write to Serial etc.
  res->println("<!DOCTYPE html>");
  res->println("<html>");
  res->println("<head><title>Hello World!</title></head>");
  res->println("<body>");
  res->println("<h1>Hello World!</h1>");
  res->print("<p>Your server is running for ");
  // A bit of dynamic data: Show the uptime
  res->print((int)(millis() / 1000), DEC);
  res->println(" seconds.</p>");
  res->println("</body>");
  res->println("</html>");
}

void handle404(HTTPRequest * req, HTTPResponse * res) 
{
  // Discard request body, if we received any
  // We do this, as this is the default node and may also server POST/PUT requests
  req->discardRequestBody();

  // Set the response status
  res->setStatusCode(404);
  res->setStatusText("Not Found");

  // Set content type of the response
  res->setHeader("Content-Type", "text/html");

  // Write a tiny HTTP page
  res->println("<!DOCTYPE html>");
  res->println("<html>");
  res->println("<head><title>Not Found</title></head>");
  res->println("<body><h1>404 Not Found</h1><p>The requested resource was not found on this server.</p></body>");
  res->println("</html>");
}

void setup() 
{
  // For logging
  Serial.begin(115200);
  while (!Serial && millis() < 5000);

  ///////////////////////////////////////////////

  Serial.print("\nStarting Async_Server on "); Serial.print(ARDUINO_BOARD);
  Serial.println(" with " + String(SHIELD_TYPE));
  Serial.println(WEBSERVER_WT32_ETH01_VERSION);

  // To be called before ETH.begin()
  WT32_ETH01_onEvent();

  //bool begin(uint8_t phy_addr=ETH_PHY_ADDR, int power=ETH_PHY_POWER, int mdc=ETH_PHY_MDC, int mdio=ETH_PHY_MDIO,
  //           eth_phy_type_t type=ETH_PHY_TYPE, eth_clock_mode_t clk_mode=ETH_CLK_MODE);
  //ETH.begin(ETH_PHY_ADDR, ETH_PHY_POWER, ETH_PHY_MDC, ETH_PHY_MDIO, ETH_PHY_TYPE, ETH_CLK_MODE);
  ETH.begin(ETH_PHY_ADDR, ETH_PHY_POWER);

  // Static IP, leave without this line to get IP via DHCP
  //bool config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1 = 0, IPAddress dns2 = 0);
  ETH.config(myIP, myGW, mySN, myDNS);

  WT32_ETH01_waitForConnect();

  Serial.print(F("HTTP EthernetWebServer is @ IP : "));
  Serial.println(ETH.localIP());

  ///////////////////////////////////////////////

  // Setup the server as a separate task.
  Serial.println("Creating server task... ");
  // We pass:
  // serverTask - the function that should be run as separate task
  // "https443" - a name for the task (mainly used for logging)
  // 6144       - stack size in byte. If you want up to four clients, you should
  //              not go below 6kB. If your stack is too small, you will encounter
  //              Panic and stack canary exceptions, usually during the call to
  //              SSL_accept.
  xTaskCreatePinnedToCore(serverTask, "https443", 6144, NULL, 1, NULL, ARDUINO_RUNNING_CORE);
}

void loop() 
{
  Serial.println("loop()");
  delay(5000);
}