msraynsford/WifiWebServerConfig.c

## WifiWebServerConfig.c
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <FS.h>
#include "EEPROMAnything.h"

#define RESETPIN D1

ESP8266WebServer webServer(80);

struct config_t{
  char ssid[17] = "ESP8266 Test";
  char password[17] = "password";
}  config;

void setup() {
  Serial.begin(115200);
  pinMode(RESETPIN, INPUT_PULLUP);

  SPIFFS.begin();

  //Start the EEPROM library with enough memory to hold all the config data
  EEPROM.begin(sizeof(config));

  //Check the reset pin and overwrite the eeprom with the default values if required
  if(!digitalRead(RESETPIN)) {
    Serial.printf("Firmware Reset Detected\n");
    EEPROM_writeAnything(0,  config);
    EEPROM.commit();
  }

  //Retreive the network values from the EEPROM and output them to serial as a confirmation test.
  EEPROM_readAnything(0, config);
  Serial.printf("SSID: '%s'\n", config.ssid);
  Serial.printf("Password: '%s'\n", config.password);

  WiFi.mode(WIFI_AP);
  WiFi.softAP(config.ssid, config.password);

  webServer.on("/", [](){
    webServer.send(200, "text/plain", "visit /admin for wifi configuration");
  });

  webServer.serveStatic("/admin", SPIFFS, "/admin.html");
  webServer.on("/admin", handleAdmin);
  webServer.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
  webServer.handleClient();
}

void handleAdmin() {
  // Create a string containing all the arguments, send them out to the serial port
  Serial.printf("handleAdmin\n");

  // Construct a list of all the arguments for debug
  String message = "#Args:" + String(webServer.args()) + "\n";

  for (int i = 0; i < webServer.args(); i++)
    message.concat(webServer.argName(i) + ": "+ webServer.arg(i) + "\n");

  Serial.print(message);


  // Check to see that the submitted password is the same as the current password
  if(webServer.hasArg("oldpassword")) {

    // Check to see that the submitted password is the same as the current password
    if(strcmp(webServer.arg("oldpassword").c_str(), config.password) == 0) {

      // If the passwords match we can update the config with the new settings
      // Check to see if there is a new value (also doubles to check the length of the new value is long enough)
      if(webServer.arg("newpassword").length() > 7)
        webServer.arg("newpassword").toCharArray(config.password, sizeof(config.password));

      if(webServer.arg("newssid").length() > 7)
        webServer.arg("newssid").toCharArray(config.ssid, sizeof(config.ssid));

      // Store the new settings to EEPROM
      EEPROM_writeAnything(0,  config);
      EEPROM.commit();

      // Construct a message to tell the user that the change worked
      message = "New settings will take effect after restart";
      Serial.println(message);
    }
    else {
      // Construct a message to tell the user that the change failed
      message = "Incorrect password please try again";
    }

    // Reply with a web page to indicate success or failure
    message = "<html><head><meta http-equiv='refresh' content='5;url=/' /></head><body><h1>" + message;
    message += "<br/>Redirecting in 5 seconds...</h1></body></html>";
    webServer.send(200, "text/html", message);
  }
}
	#include <ESP8266WiFi.h>
	#include <ESP8266WebServer.h>
	#include <FS.h>
	#include "EEPROMAnything.h"

	#define RESETPIN D1

	ESP8266WebServer webServer(80);

	struct config_t{
	char ssid[17] = "ESP8266 Test";
	char password[17] = "password";
	} config;

	void setup() {
	Serial.begin(115200);
	pinMode(RESETPIN, INPUT_PULLUP);

	SPIFFS.begin();

	//Start the EEPROM library with enough memory to hold all the config data
	EEPROM.begin(sizeof(config));

	//Check the reset pin and overwrite the eeprom with the default values if required
	if(!digitalRead(RESETPIN)) {
	Serial.printf("Firmware Reset Detected\n");
	EEPROM_writeAnything(0, config);
	EEPROM.commit();
	}

	//Retreive the network values from the EEPROM and output them to serial as a confirmation test.
	EEPROM_readAnything(0, config);
	Serial.printf("SSID: '%s'\n", config.ssid);
	Serial.printf("Password: '%s'\n", config.password);

	WiFi.mode(WIFI_AP);
	WiFi.softAP(config.ssid, config.password);

	webServer.on("/", [](){
	webServer.send(200, "text/plain", "visit /admin for wifi configuration");
	});

	webServer.serveStatic("/admin", SPIFFS, "/admin.html");
	webServer.on("/admin", handleAdmin);
	webServer.begin();
	}

	void loop() {
	// put your main code here, to run repeatedly:
	webServer.handleClient();
	}

	void handleAdmin() {
	// Create a string containing all the arguments, send them out to the serial port
	Serial.printf("handleAdmin\n");

	// Construct a list of all the arguments for debug
	String message = "#Args:" + String(webServer.args()) + "\n";

	for (int i = 0; i < webServer.args(); i++)
	message.concat(webServer.argName(i) + ": "+ webServer.arg(i) + "\n");

	Serial.print(message);


	// Check to see that the submitted password is the same as the current password
	if(webServer.hasArg("oldpassword")) {

	// Check to see that the submitted password is the same as the current password
	if(strcmp(webServer.arg("oldpassword").c_str(), config.password) == 0) {

	// If the passwords match we can update the config with the new settings
	// Check to see if there is a new value (also doubles to check the length of the new value is long enough)
	if(webServer.arg("newpassword").length() > 7)
	webServer.arg("newpassword").toCharArray(config.password, sizeof(config.password));

	if(webServer.arg("newssid").length() > 7)
	webServer.arg("newssid").toCharArray(config.ssid, sizeof(config.ssid));

	// Store the new settings to EEPROM
	EEPROM_writeAnything(0, config);
	EEPROM.commit();

	// Construct a message to tell the user that the change worked
	message = "New settings will take effect after restart";
	Serial.println(message);
	}
	else {
	// Construct a message to tell the user that the change failed
	message = "Incorrect password please try again";
	}

	// Reply with a web page to indicate success or failure
	message = "<html><head><meta http-equiv='refresh' content='5;url=/' /></head><body><h1>" + message;
	message += "<br/>Redirecting in 5 seconds...</h1></body></html>";
	webServer.send(200, "text/html", message);
	}
	}