ESP32_hotspot/ESP32_hotspot.ino

/// import all of the common libs
#include <WiFi.h>
#include <WiFiClient.h>
#include <WiFiAP.h>
#include <WebServer.h>
#include <uri/UriBraces.h>
#include <ESPmDNS.h>

#include "esp_wifi.h" // common esp wifi methods

#include "web.h"  // our webpage contfigs
#include "config.h" // out newtowrk configs

WebServer server(port);

void handleRoot() {
  String message = "<h1>Actions</h1>";
  String response = formatContent("Actions", message);
  server.send(200, "text/html", response);
}

void handleClients() {
  String message = "Client list\n\n";
  wifi_sta_list_t wifi_sta_list;
  tcpip_adapter_sta_list_t adapter_sta_list;
  esp_wifi_ap_get_sta_list(&wifi_sta_list);
  tcpip_adapter_get_sta_list(&wifi_sta_list, &adapter_sta_list);
  if (adapter_sta_list.num > 0) {
    for (uint8_t i = 0; i < adapter_sta_list.num; i++) {
      tcpip_adapter_sta_info_t station = adapter_sta_list.sta[i];
      ip_addr_t client_ip_addr;
      memcpy((char *)&client_ip_addr.u_addr.ip4, (char *)&station.ip, sizeof(ip4_addr));
      client_ip_addr.type = IPADDR_TYPE_V4;
      message += ((String) "[+] Device " + i + " ");
      message += ("%02X:%02X:%02X:%02X:%02X:%02X", station.mac[0], station.mac[1], station.mac[2], station.mac[3], station.mac[4], station.mac[5]);
      message += (" ");
      message += (ip4addr_ntoa(&(client_ip_addr.u_addr.ip4)));
      message += ("\n");
    }
  }
  String response = formatContent("Clients", "<pre>" + message + "</pre>");
  server.send(200, "text/html", response);
}

void handleStatus() {
  String message = "<h1>Online</h1>";
  String response = formatContent("Status", message);
  server.send(200, "text/html", response);
}

String formatContent(String title, String content) {
  String response = (String) page_header + (String) page_nav + (String) page_content + (String) page_footer;
  response.replace("__TITLE__", title);
  response.replace("__CONTENT__", content);  
  server.send(200, "text/html", response);
}

void setup() {
  Serial.begin(baud);
  Serial.println("\n[+] Creating AP");
  WiFi.mode(WIFI_AP);
  WiFi.softAP(ssid, password, channel, hide_SSID, max_connection);
  
  Serial.println((String) " --> ssid: " + ssid);
  Serial.println((String) " --> password: " + password);
  Serial.println((String) " --> channel: " + channel);
  Serial.println((String) " --> hide ssid: " + hide_SSID);
  Serial.println((String) " --> max connections: " + max_connection);
  Serial.println(" --> ip address: 10.10.10.1");
  Serial.println(" --> gateway: 10.10.10.1");
  Serial.println(" --> subnet: 255.255.255.0");
  
  delay(100);
  WiFi.softAPConfig(ip, ip, subnet);
  delay(100);
  IPAddress myIP = WiFi.softAPIP();
  delay(100);
  MDNS.begin(host);
  
  server.on("/", handleRoot);
  server.on("/clients", handleClients);
  server.on("/status", handleStatus);
  server.onNotFound(handleRoot);
  server.begin();
  
  delay(100);
  MDNS.addService("http", "tcp", port);

  Serial.print("[+] HTTP server started: http://");
  Serial.print(host);
  Serial.print(", http://");
  Serial.println(myIP);
}

void loop() {
  server.handleClient();
  delay(2);
}