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ESPAsyncWebServer/examples/SmartSwitch/ESPAsyncWiFiManager.cpp

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/**************************************************************
AsyncWiFiManager is a library for the ESP8266/Arduino platform
(https://github.com/esp8266/Arduino) to enable easy
configuration and reconfiguration of WiFi credentials using a Captive Portal
inspired by:
http://www.esp8266.com/viewtopic.php?f=29&t=2520
https://github.com/chriscook8/esp-arduino-apboot
https://github.com/esp8266/Arduino/tree/esp8266/hardware/esp8266com/esp8266/libraries/DNSServer/examples/CaptivePortalAdvanced
Built by AlexT https://github.com/tzapu
Ported to Async Web Server by https://github.com/alanswx
Licensed under MIT license
**************************************************************/
#include "ESPAsyncWiFiManager.h"
AsyncWiFiManagerParameter::AsyncWiFiManagerParameter(const char *custom) {
_id = NULL;
_placeholder = NULL;
_length = 0;
_value = NULL;
_customHTML = custom;
}
AsyncWiFiManagerParameter::AsyncWiFiManagerParameter(const char *id, const char *placeholder, const char *defaultValue, int length) {
init(id, placeholder, defaultValue, length, "");
}
AsyncWiFiManagerParameter::AsyncWiFiManagerParameter(const char *id, const char *placeholder, const char *defaultValue, int length, const char *custom) {
init(id, placeholder, defaultValue, length, custom);
}
void AsyncWiFiManagerParameter::init(const char *id, const char *placeholder, const char *defaultValue, int length, const char *custom) {
_id = id;
_placeholder = placeholder;
_length = length;
_value = new char[length + 1];
for (int i = 0; i < length; i++) {
_value[i] = 0;
}
if (defaultValue != NULL) {
strncpy(_value, defaultValue, length);
}
_customHTML = custom;
}
const char* AsyncWiFiManagerParameter::getValue() {
return _value;
}
const char* AsyncWiFiManagerParameter::getID() {
return _id;
}
const char* AsyncWiFiManagerParameter::getPlaceholder() {
return _placeholder;
}
int AsyncWiFiManagerParameter::getValueLength() {
return _length;
}
const char* AsyncWiFiManagerParameter::getCustomHTML() {
return _customHTML;
}
#ifdef USE_EADNS
AsyncWiFiManager::AsyncWiFiManager(AsyncWebServer *server, AsyncDNSServer *dns) :server(server), dnsServer(dns) {
#else
AsyncWiFiManager::AsyncWiFiManager(AsyncWebServer *server, DNSServer *dns) :server(server), dnsServer(dns) {
#endif
wifiSSIDs = NULL;
wifiSSIDscan=true;
_modeless=false;
shouldscan=true;
}
void AsyncWiFiManager::addParameter(AsyncWiFiManagerParameter *p) {
_params[_paramsCount] = p;
_paramsCount++;
DEBUG_WM("Adding parameter");
DEBUG_WM(p->getID());
}
void AsyncWiFiManager::setupConfigPortal() {
// dnsServer.reset(new DNSServer());
// server.reset(new ESP8266WebServer(80));
server->reset();
DEBUG_WM(F(""));
_configPortalStart = millis();
DEBUG_WM(F("Configuring access point... "));
DEBUG_WM(_apName);
if (_apPassword != NULL) {
if (strlen(_apPassword) < 8 || strlen(_apPassword) > 63) {
// fail passphrase to short or long!
DEBUG_WM(F("Invalid AccessPoint password. Ignoring"));
_apPassword = NULL;
}
DEBUG_WM(_apPassword);
}
//optional soft ip config
if (_ap_static_ip) {
DEBUG_WM(F("Custom AP IP/GW/Subnet"));
WiFi.softAPConfig(_ap_static_ip, _ap_static_gw, _ap_static_sn);
}
if (_apPassword != NULL) {
WiFi.softAP(_apName, _apPassword);//password option
} else {
WiFi.softAP(_apName);
}
delay(500); // Without delay I've seen the IP address blank
DEBUG_WM(F("AP IP address: "));
DEBUG_WM(WiFi.softAPIP());
/* Setup the DNS server redirecting all the domains to the apIP */
#ifdef USE_EADNS
dnsServer->setErrorReplyCode(AsyncDNSReplyCode::NoError);
#else
dnsServer->setErrorReplyCode(DNSReplyCode::NoError);
#endif
dnsServer->start(DNS_PORT, "*", WiFi.softAPIP());
setInfo();
/* Setup web pages: root, wifi config pages, SO captive portal detectors and not found. */
server->on("/", std::bind(&AsyncWiFiManager::handleRoot, this,std::placeholders::_1)).setFilter(ON_AP_FILTER);
server->on("/wifi", std::bind(&AsyncWiFiManager::handleWifi, this, std::placeholders::_1,true)).setFilter(ON_AP_FILTER);
server->on("/0wifi", std::bind(&AsyncWiFiManager::handleWifi, this,std::placeholders::_1, false)).setFilter(ON_AP_FILTER);
server->on("/wifisave", std::bind(&AsyncWiFiManager::handleWifiSave,this,std::placeholders::_1)).setFilter(ON_AP_FILTER);
server->on("/i", std::bind(&AsyncWiFiManager::handleInfo,this, std::placeholders::_1)).setFilter(ON_AP_FILTER);
server->on("/r", std::bind(&AsyncWiFiManager::handleReset, this,std::placeholders::_1)).setFilter(ON_AP_FILTER);
//server->on("/generate_204", std::bind(&AsyncWiFiManager::handle204, this)); //Android/Chrome OS captive portal check.
server->on("/fwlink", std::bind(&AsyncWiFiManager::handleRoot, this,std::placeholders::_1)).setFilter(ON_AP_FILTER); //Microsoft captive portal. Maybe not needed. Might be handled by notFound handler.
server->onNotFound (std::bind(&AsyncWiFiManager::handleNotFound,this,std::placeholders::_1));
server->begin(); // Web server start
DEBUG_WM(F("HTTP server started"));
}
static const char HEX_CHAR_ARRAY[17] = "0123456789ABCDEF";
/**
* convert char array (hex values) to readable string by seperator
* buf: buffer to convert
* length: data length
* strSeperator seperator between each hex value
* return: formated value as String
*/
static String byteToHexString(uint8_t* buf, uint8_t length, String strSeperator="-") {
String dataString = "";
for (uint8_t i = 0; i < length; i++) {
byte v = buf[i] / 16;
byte w = buf[i] % 16;
if (i>0) {
dataString += strSeperator;
}
dataString += String(HEX_CHAR_ARRAY[v]);
dataString += String(HEX_CHAR_ARRAY[w]);
}
dataString.toUpperCase();
return dataString;
} // byteToHexString
#if !defined(ESP8266)
String getESP32ChipID() {
uint64_t chipid;
chipid=ESP.getEfuseMac();//The chip ID is essentially its MAC address(length: 6 bytes).
int chipid_size = 6;
uint8_t chipid_arr[chipid_size];
for (uint8_t i=0; i < chipid_size; i++) {
chipid_arr[i] = (chipid >> (8 * i)) & 0xff;
}
return byteToHexString(chipid_arr, chipid_size, "");
}
#endif
boolean AsyncWiFiManager::autoConnect(unsigned long maxConnectRetries, unsigned long retryDelayMs) {
String ssid = "ESP";
#if defined(ESP8266)
ssid += String(ESP.getChipId());
#else
ssid += getESP32ChipID();
#endif
return autoConnect(ssid.c_str(), NULL);
}
boolean AsyncWiFiManager::autoConnect(char const *apName, char const *apPassword, unsigned long maxConnectRetries, unsigned long retryDelayMs) {
DEBUG_WM(F(""));
// read eeprom for ssid and pass
//String ssid = getSSID();
//String pass = getPassword();
// attempt to connect; should it fail, fall back to AP
WiFi.mode(WIFI_STA);
for(unsigned long tryNumber = 0; tryNumber < maxConnectRetries; tryNumber++) {
DEBUG_WM(F("AutoConnect Try No.:"));
DEBUG_WM(tryNumber);
if (connectWifi("", "") == WL_CONNECTED) {
DEBUG_WM(F("IP Address:"));
DEBUG_WM(WiFi.localIP());
//connected
return true;
}
if(tryNumber + 1 < maxConnectRetries) {
// we might connect during the delay
unsigned long restDelayMs = retryDelayMs;
while(restDelayMs != 0) {
if(WiFi.status() == WL_CONNECTED) {
DEBUG_WM(F("IP Address (connected during delay):"));
DEBUG_WM(WiFi.localIP());
return true;
}
unsigned long thisDelay = std::min(restDelayMs, 100ul);
delay(thisDelay);
restDelayMs -= thisDelay;
}
}
}
return startConfigPortal(apName, apPassword);
}
String AsyncWiFiManager::networkListAsString()
{
String pager ;
//display networks in page
for (int i = 0; i < wifiSSIDCount; i++) {
if (wifiSSIDs[i].duplicate == true) continue; // skip dups
int quality = getRSSIasQuality(wifiSSIDs[i].RSSI);
if (_minimumQuality == -1 || _minimumQuality < quality) {
String item = FPSTR(HTTP_ITEM);
String rssiQ;
rssiQ += quality;
item.replace("{v}", wifiSSIDs[i].SSID);
item.replace("{r}", rssiQ);
#if defined(ESP8266)
if (wifiSSIDs[i].encryptionType != ENC_TYPE_NONE) {
#else
if (wifiSSIDs[i].encryptionType != WIFI_AUTH_OPEN) {
#endif
item.replace("{i}", "l");
} else {
item.replace("{i}", "");
}
pager += item;
} else {
DEBUG_WM(F("Skipping due to quality"));
}
}
return pager;
}
String AsyncWiFiManager::scanModal()
{
shouldscan=true;
scan();
String pager=networkListAsString();
return pager;
}
void AsyncWiFiManager::scan()
{
if (!shouldscan) return;
DEBUG_WM(F("About to scan()"));
if (wifiSSIDscan)
{
delay(100);
}
if (wifiSSIDscan)
{
wifi_ssid_count_t n = WiFi.scanNetworks();
DEBUG_WM(F("Scan done"));
if(n == WIFI_SCAN_FAILED) {
DEBUG_WM(F("scanNetworks returned: WIFI_SCAN_FAILED!"));
} else if(n == WIFI_SCAN_RUNNING) {
DEBUG_WM(F("scanNetworks returned: WIFI_SCAN_RUNNING!"));
} else if(n < 0) {
DEBUG_WM(F("scanNetworks failed with unknown error code!"));
} else if (n == 0) {
DEBUG_WM(F("No networks found"));
// page += F("No networks found. Refresh to scan again.");
} else {
if (wifiSSIDscan)
{
/* WE SHOULD MOVE THIS IN PLACE ATOMICALLY */
if (wifiSSIDs) delete [] wifiSSIDs;
wifiSSIDs = new WiFiResult[n];
wifiSSIDCount = n;
if (n>0)
shouldscan=false;
for (wifi_ssid_count_t i=0;i<n;i++)
{
wifiSSIDs[i].duplicate=false;
#if defined(ESP8266)
bool res=WiFi.getNetworkInfo(i, wifiSSIDs[i].SSID, wifiSSIDs[i].encryptionType, wifiSSIDs[i].RSSI, wifiSSIDs[i].BSSID, wifiSSIDs[i].channel, wifiSSIDs[i].isHidden);
#else
bool res=WiFi.getNetworkInfo(i, wifiSSIDs[i].SSID, wifiSSIDs[i].encryptionType, wifiSSIDs[i].RSSI, wifiSSIDs[i].BSSID, wifiSSIDs[i].channel);
#endif
}
// RSSI SORT
// old sort
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
if (wifiSSIDs[j].RSSI > wifiSSIDs[i].RSSI) {
std::swap(wifiSSIDs[i], wifiSSIDs[j]);
}
}
}
// remove duplicates ( must be RSSI sorted )
if (_removeDuplicateAPs) {
String cssid;
for (int i = 0; i < n; i++) {
if (wifiSSIDs[i].duplicate == true) continue;
cssid = wifiSSIDs[i].SSID;
for (int j = i + 1; j < n; j++) {
if (cssid == wifiSSIDs[j].SSID) {
DEBUG_WM("DUP AP: " +wifiSSIDs[j].SSID);
wifiSSIDs[j].duplicate=true; // set dup aps to NULL
}
}
}
}
}
}
}
}
void AsyncWiFiManager::startConfigPortalModeless(char const *apName, char const *apPassword) {
_modeless =true;
_apName = apName;
_apPassword = apPassword;
/*
AJS - do we want this?
*/
//setup AP
WiFi.mode(WIFI_AP_STA);
DEBUG_WM("SET AP STA");
// try to connect
if (connectWifi("", "") == WL_CONNECTED) {
DEBUG_WM(F("IP Address:"));
DEBUG_WM(WiFi.localIP());
//connected
// call the callback!
if ( _savecallback != NULL) {
//todo: check if any custom parameters actually exist, and check if they really changed maybe
_savecallback();
}
}
//notify we entered AP mode
if ( _apcallback != NULL) {
_apcallback(this);
}
connect = false;
setupConfigPortal();
scannow= -1 ;
}
void AsyncWiFiManager::loop(){
safeLoop();
criticalLoop();
}
void AsyncWiFiManager::setInfo() {
if (needInfo) {
pager = infoAsString();
wifiStatus = WiFi.status();
needInfo = false;
}
}
/**
* Anything that accesses WiFi, ESP or EEPROM goes here
*/
void AsyncWiFiManager::criticalLoop(){
if (_modeless)
{
if ( scannow==-1 || millis() > scannow + 60000)
{
scan();
scannow= millis() ;
}
if (connect) {
connect = false;
//delay(2000);
DEBUG_WM(F("Connecting to new AP"));
// using user-provided _ssid, _pass in place of system-stored ssid and pass
if (connectWifi(_ssid, _pass) != WL_CONNECTED) {
DEBUG_WM(F("Failed to connect."));
} else {
//connected
// alanswx - should we have a config to decide if we should shut down AP?
// WiFi.mode(WIFI_STA);
//notify that configuration has changed and any optional parameters should be saved
if ( _savecallback != NULL) {
//todo: check if any custom parameters actually exist, and check if they really changed maybe
_savecallback();
}
return;
}
if (_shouldBreakAfterConfig) {
//flag set to exit after config after trying to connect
//notify that configuration has changed and any optional parameters should be saved
if ( _savecallback != NULL) {
//todo: check if any custom parameters actually exist, and check if they really changed maybe
_savecallback();
}
}
}
}
}
/*
* Anything that doesn't access WiFi, ESP or EEPROM can go here
*/
void AsyncWiFiManager::safeLoop(){
#ifndef USE_EADNS
dnsServer->processNextRequest();
#endif
}
boolean AsyncWiFiManager::startConfigPortal(char const *apName, char const *apPassword) {
//setup AP
WiFi.mode(WIFI_AP_STA);
DEBUG_WM("SET AP STA");
_apName = apName;
_apPassword = apPassword;
//notify we entered AP mode
if ( _apcallback != NULL) {
_apcallback(this);
}
connect = false;
setupConfigPortal();
scannow= -1 ;
while (_configPortalTimeout == 0 || millis() < _configPortalStart + _configPortalTimeout) {
//DNS
#ifndef USE_EADNS
dnsServer->processNextRequest();
#endif
//
// we should do a scan every so often here and
// try to reconnect to AP while we are at it
//
if ( scannow == -1 || millis() > scannow + 10000)
{
DEBUG_WM(F("About to scan()"));
shouldscan=true; // since we are modal, we can scan every time
#if defined(ESP8266)
// we might still be connecting, so that has to stop for scanning
ETS_UART_INTR_DISABLE ();
wifi_station_disconnect ();
ETS_UART_INTR_ENABLE ();
#else
WiFi.disconnect (false);
#endif
scan();
if(_tryConnectDuringConfigPortal) WiFi.begin(); // try to reconnect to AP
scannow= millis() ;
}
// attempts to reconnect were successful
if(WiFi.status() == WL_CONNECTED) {
//connected
WiFi.mode(WIFI_STA);
//notify that configuration has changed and any optional parameters should be saved
if ( _savecallback != NULL) {
//todo: check if any custom parameters actually exist, and check if they really changed maybe
_savecallback();
}
break;
}
if (connect) {
connect = false;
delay(2000);
DEBUG_WM(F("Connecting to new AP"));
// using user-provided _ssid, _pass in place of system-stored ssid and pass
if (connectWifi(_ssid, _pass) == WL_CONNECTED) {
//connected
WiFi.mode(WIFI_STA);
//notify that configuration has changed and any optional parameters should be saved
if ( _savecallback != NULL) {
//todo: check if any custom parameters actually exist, and check if they really changed maybe
_savecallback();
}
break;
} else {
DEBUG_WM(F("Failed to connect."));
}
if (_shouldBreakAfterConfig) {
//flag set to exit after config after trying to connect
//notify that configuration has changed and any optional parameters should be saved
if ( _savecallback != NULL) {
//todo: check if any custom parameters actually exist, and check if they really changed maybe
_savecallback();
}
break;
}
}
yield();
}
server->reset();
#ifdef USE_EADNS
*dnsServer=AsyncDNSServer();
#else
*dnsServer=DNSServer();
#endif
return WiFi.status() == WL_CONNECTED;
}
int AsyncWiFiManager::connectWifi(String ssid, String pass) {
DEBUG_WM(F("Connecting as wifi client..."));
// check if we've got static_ip settings, if we do, use those.
if (_sta_static_ip) {
DEBUG_WM(F("Custom STA IP/GW/Subnet/DNS"));
WiFi.config(_sta_static_ip, _sta_static_gw, _sta_static_sn, _sta_static_dns1, _sta_static_dns2);
DEBUG_WM(WiFi.localIP());
}
//fix for auto connect racing issue
// if (WiFi.status() == WL_CONNECTED) {
// DEBUG_WM("Already connected. Bailing out.");
// return WL_CONNECTED;
// }
//check if we have ssid and pass and force those, if not, try with last saved values
if (ssid != "") {
#if defined(ESP8266)
//trying to fix connection in progress hanging
ETS_UART_INTR_DISABLE();
wifi_station_disconnect();
ETS_UART_INTR_ENABLE();
#else
WiFi.disconnect(false);
#endif
WiFi.begin(ssid.c_str(), pass.c_str());
} else {
if (WiFi.SSID().length() > 0) {
DEBUG_WM("Using last saved values, should be faster");
#if defined(ESP8266)
//trying to fix connection in progress hanging
ETS_UART_INTR_DISABLE();
wifi_station_disconnect();
ETS_UART_INTR_ENABLE();
#else
WiFi.disconnect(false);
#endif
WiFi.begin();
} else {
DEBUG_WM("Try to connect with saved credentials");
WiFi.begin();
}
}
int connRes = waitForConnectResult();
DEBUG_WM ("Connection result: ");
DEBUG_WM ( connRes );
//not connected, WPS enabled, no pass - first attempt
#ifdef NO_EXTRA_4K_HEAP
if (_tryWPS && connRes != WL_CONNECTED && pass == "") {
startWPS();
//should be connected at the end of WPS
connRes = waitForConnectResult();
}
#endif
needInfo = true;
setInfo();
return connRes;
}
uint8_t AsyncWiFiManager::waitForConnectResult() {
if (_connectTimeout == 0) {
return WiFi.waitForConnectResult();
} else {
DEBUG_WM (F("Waiting for connection result with time out"));
unsigned long start = millis();
boolean keepConnecting = true;
uint8_t status;
while (keepConnecting) {
status = WiFi.status();
if (millis() > start + _connectTimeout) {
keepConnecting = false;
DEBUG_WM (F("Connection timed out"));
}
if (status == WL_CONNECTED || status == WL_CONNECT_FAILED) {
keepConnecting = false;
}
delay(100);
}
return status;
}
}
#ifdef NO_EXTRA_4K_HEAP
void AsyncWiFiManager::startWPS() {
DEBUG_WM("START WPS");
#if defined(ESP8266)
WiFi.beginWPSConfig();
#else
//esp_wps_config_t config = WPS_CONFIG_INIT_DEFAULT(ESP_WPS_MODE);
esp_wps_config_t config = {};
config.wps_type = ESP_WPS_MODE;
config.crypto_funcs = &g_wifi_default_wps_crypto_funcs;
strcpy(config.factory_info.manufacturer,"ESPRESSIF");
strcpy(config.factory_info.model_number, "ESP32");
strcpy(config.factory_info.model_name, "ESPRESSIF IOT");
strcpy(config.factory_info.device_name,"ESP STATION");
esp_wifi_wps_enable(&config);
esp_wifi_wps_start(0);
#endif
DEBUG_WM("END WPS");
}
#endif
/*
String AsyncWiFiManager::getSSID() {
if (_ssid == "") {
DEBUG_WM(F("Reading SSID"));
_ssid = WiFi.SSID();
DEBUG_WM(F("SSID: "));
DEBUG_WM(_ssid);
}
return _ssid;
}
String AsyncWiFiManager::getPassword() {
if (_pass == "") {
DEBUG_WM(F("Reading Password"));
_pass = WiFi.psk();
DEBUG_WM("Password: " + _pass);
//DEBUG_WM(_pass);
}
return _pass;
}
*/
String AsyncWiFiManager::getConfigPortalSSID() {
return _apName;
}
void AsyncWiFiManager::resetSettings() {
DEBUG_WM(F("settings invalidated"));
DEBUG_WM(F("THIS MAY CAUSE AP NOT TO START UP PROPERLY. YOU NEED TO COMMENT IT OUT AFTER ERASING THE DATA."));
WiFi.disconnect(true);
//delay(200);
}
void AsyncWiFiManager::setTimeout(unsigned long seconds) {
setConfigPortalTimeout(seconds);
}
void AsyncWiFiManager::setConfigPortalTimeout(unsigned long seconds) {
_configPortalTimeout = seconds * 1000;
}
void AsyncWiFiManager::setConnectTimeout(unsigned long seconds) {
_connectTimeout = seconds * 1000;
}
void AsyncWiFiManager::setTryConnectDuringConfigPortal(boolean v) {
_tryConnectDuringConfigPortal = v;
}
void AsyncWiFiManager::setDebugOutput(boolean debug) {
_debug = debug;
}
void AsyncWiFiManager::setAPStaticIPConfig(IPAddress ip, IPAddress gw, IPAddress sn) {
_ap_static_ip = ip;
_ap_static_gw = gw;
_ap_static_sn = sn;
}
void AsyncWiFiManager::setSTAStaticIPConfig(IPAddress ip, IPAddress gw, IPAddress sn, IPAddress dns1, IPAddress dns2) {
_sta_static_ip = ip;
_sta_static_gw = gw;
_sta_static_sn = sn;
_sta_static_dns1 = dns1;
_sta_static_dns2 = dns2;
}
void AsyncWiFiManager::setMinimumSignalQuality(int quality) {
_minimumQuality = quality;
}
void AsyncWiFiManager::setBreakAfterConfig(boolean shouldBreak) {
_shouldBreakAfterConfig = shouldBreak;
}
/** Handle root or redirect to captive portal */
void AsyncWiFiManager::handleRoot(AsyncWebServerRequest *request) {
// AJS - maybe we should set a scan when we get to the root???
// and only scan on demand? timer + on demand? plus a link to make it happen?
shouldscan=true;
scannow= -1 ;
DEBUG_WM(F("Handle root"));
if (captivePortal(request)) { // If captive portal redirect instead of displaying the page.
return;
}
String page = FPSTR(WFM_HTTP_HEAD);
page.replace("{v}", "Options");
page += FPSTR(HTTP_SCRIPT);
page += FPSTR(HTTP_STYLE);
page += _customHeadElement;
page += FPSTR(HTTP_HEAD_END);
page += "<h1>";
page += _apName;
page += "</h1>";
page += F("<h3>AsyncWiFiManager</h3>");
page += FPSTR(HTTP_PORTAL_OPTIONS);
page += _customOptionsElement;
page += FPSTR(HTTP_END);
request->send(200, "text/html", page);
}
/** Wifi config page handler */
void AsyncWiFiManager::handleWifi(AsyncWebServerRequest *request,boolean scan) {
shouldscan=true;
scannow= -1 ;
DEBUG_WM(F("Handle wifi"));
String page = FPSTR(WFM_HTTP_HEAD);
page.replace("{v}", "Config ESP");
page += FPSTR(HTTP_SCRIPT);
page += FPSTR(HTTP_STYLE);
page += _customHeadElement;
page += FPSTR(HTTP_HEAD_END);
if (scan) {
wifiSSIDscan=false;
DEBUG_WM(F("Scan done"));
if (wifiSSIDCount==0) {
DEBUG_WM(F("No networks found"));
page += F("No networks found. Refresh to scan again.");
} else {
//display networks in page
String pager = networkListAsString();
page += pager;
page += "<br/>";
}
}
wifiSSIDscan=true;
page += FPSTR(HTTP_FORM_START);
char parLength[2];
// add the extra parameters to the form
for (int i = 0; i < _paramsCount; i++) {
if (_params[i] == NULL) {
break;
}
String pitem = FPSTR(HTTP_FORM_PARAM);
if (_params[i]->getID() != NULL) {
pitem.replace("{i}", _params[i]->getID());
pitem.replace("{n}", _params[i]->getID());
pitem.replace("{p}", _params[i]->getPlaceholder());
snprintf(parLength, 2, "%d", _params[i]->getValueLength());
pitem.replace("{l}", parLength);
pitem.replace("{v}", _params[i]->getValue());
pitem.replace("{c}", _params[i]->getCustomHTML());
} else {
pitem = _params[i]->getCustomHTML();
}
page += pitem;
}
if (_params[0] != NULL) {
page += "<br/>";
}
if (_sta_static_ip) {
String item = FPSTR(HTTP_FORM_PARAM);
item.replace("{i}", "ip");
item.replace("{n}", "ip");
item.replace("{p}", "Static IP");
item.replace("{l}", "15");
item.replace("{v}", _sta_static_ip.toString());
page += item;
item = FPSTR(HTTP_FORM_PARAM);
item.replace("{i}", "gw");
item.replace("{n}", "gw");
item.replace("{p}", "Static Gateway");
item.replace("{l}", "15");
item.replace("{v}", _sta_static_gw.toString());
page += item;
item = FPSTR(HTTP_FORM_PARAM);
item.replace("{i}", "sn");
item.replace("{n}", "sn");
item.replace("{p}", "Subnet");
item.replace("{l}", "15");
item.replace("{v}", _sta_static_sn.toString());
page += item;
item = FPSTR(HTTP_FORM_PARAM);
item.replace("{i}", "dns1");
item.replace("{n}", "dns1");
item.replace("{p}", "DNS1");
item.replace("{l}", "15");
item.replace("{v}", _sta_static_dns1.toString());
page += item;
item = FPSTR(HTTP_FORM_PARAM);
item.replace("{i}", "dns2");
item.replace("{n}", "dns2");
item.replace("{p}", "DNS2");
item.replace("{l}", "15");
item.replace("{v}", _sta_static_dns2.toString());
page += item;
page += "<br/>";
}
page += FPSTR(HTTP_FORM_END);
page += FPSTR(HTTP_SCAN_LINK);
page += FPSTR(HTTP_END);
request->send(200, "text/html", page);
DEBUG_WM(F("Sent config page"));
}
/** Handle the WLAN save form and redirect to WLAN config page again */
void AsyncWiFiManager::handleWifiSave(AsyncWebServerRequest *request) {
DEBUG_WM(F("WiFi save"));
//SAVE/connect here
needInfo = true;
_ssid = request->arg("s").c_str();
_pass = request->arg("p").c_str();
//parameters
for (int i = 0; i < _paramsCount; i++) {
if (_params[i] == NULL) {
break;
}
//read parameter
String value = request->arg(_params[i]->getID()).c_str();
//store it in array
value.toCharArray(_params[i]->_value, _params[i]->_length);
DEBUG_WM(F("Parameter"));
DEBUG_WM(_params[i]->getID());
DEBUG_WM(value);
}
if (request->hasArg("ip")) {
DEBUG_WM(F("static ip"));
DEBUG_WM(request->arg("ip"));
//_sta_static_ip.fromString(request->arg("ip"));
String ip = request->arg("ip");
optionalIPFromString(&_sta_static_ip, ip.c_str());
}
if (request->hasArg("gw")) {
DEBUG_WM(F("static gateway"));
DEBUG_WM(request->arg("gw"));
String gw = request->arg("gw");
optionalIPFromString(&_sta_static_gw, gw.c_str());
}
if (request->hasArg("sn")) {
DEBUG_WM(F("static netmask"));
DEBUG_WM(request->arg("sn"));
String sn = request->arg("sn");
optionalIPFromString(&_sta_static_sn, sn.c_str());
}
if (request->hasArg("dns1")) {
DEBUG_WM(F("static DNS 1"));
DEBUG_WM(request->arg("dns1"));
String dns1 = request->arg("dns1");
optionalIPFromString(&_sta_static_dns1, dns1.c_str());
}
if (request->hasArg("dns2")) {
DEBUG_WM(F("static DNS 2"));
DEBUG_WM(request->arg("dns2"));
String dns2 = request->arg("dns2");
optionalIPFromString(&_sta_static_dns2, dns2.c_str());
}
String page = FPSTR(WFM_HTTP_HEAD);
page.replace("{v}", "Credentials Saved");
page += FPSTR(HTTP_SCRIPT);
page += FPSTR(HTTP_STYLE);
page += _customHeadElement;
page += F("<meta http-equiv=\"refresh\" content=\"5; url=/i\">");
page += FPSTR(HTTP_HEAD_END);
page += FPSTR(HTTP_SAVED);
page += FPSTR(HTTP_END);
request->send(200, "text/html", page);
DEBUG_WM(F("Sent wifi save page"));
connect = true; //signal ready to connect/reset
}
/** Handle the info page */
String AsyncWiFiManager::infoAsString()
{
String page;
page += F("<dt>Chip ID</dt><dd>");
#if defined(ESP8266)
page += ESP.getChipId();
#else
page += getESP32ChipID();
#endif
page += F("</dd>");
page += F("<dt>Flash Chip ID</dt><dd>");
#if defined(ESP8266)
page += ESP.getFlashChipId();
#else
page += F("N/A for ESP32");
#endif
page += F("</dd>");
page += F("<dt>IDE Flash Size</dt><dd>");
page += ESP.getFlashChipSize();
page += F(" bytes</dd>");
page += F("<dt>Real Flash Size</dt><dd>");
#if defined(ESP8266)
page += ESP.getFlashChipRealSize();
#else
page += F("N/A for ESP32");
#endif
page += F(" bytes</dd>");
page += F("<dt>Soft AP IP</dt><dd>");
page += WiFi.softAPIP().toString();
page += F("</dd>");
page += F("<dt>Soft AP MAC</dt><dd>");
page += WiFi.softAPmacAddress();
page += F("</dd>");
page += F("<dt>Station SSID</dt><dd>");
page += WiFi.SSID();
page += F("</dd>");
page += F("<dt>Station IP</dt><dd>");
page += WiFi.localIP().toString();
page += F("</dd>");
page += F("<dt>Station MAC</dt><dd>");
page += WiFi.macAddress();
page += F("</dd>");
page += F("</dl>");
return page;
}
void AsyncWiFiManager::handleInfo(AsyncWebServerRequest *request) {
DEBUG_WM(F("Info"));
String page = FPSTR(WFM_HTTP_HEAD);
page.replace("{v}", "Info");
page += FPSTR(HTTP_SCRIPT);
page += FPSTR(HTTP_STYLE);
page += _customHeadElement;
if (connect==true)
page += F("<meta http-equiv=\"refresh\" content=\"5; url=/i\">");
page += FPSTR(HTTP_HEAD_END);
page += F("<dl>");
if (connect==true)
{
page += F("<dt>Trying to connect</dt><dd>");
page += wifiStatus;
page += F("</dd>");
}
page +=pager;
page += FPSTR(HTTP_END);
request->send(200, "text/html", page);
DEBUG_WM(F("Sent info page"));
}
/** Handle the reset page */
void AsyncWiFiManager::handleReset(AsyncWebServerRequest *request) {
DEBUG_WM(F("Reset"));
String page = FPSTR(WFM_HTTP_HEAD);
page.replace("{v}", "Info");
page += FPSTR(HTTP_SCRIPT);
page += FPSTR(HTTP_STYLE);
page += _customHeadElement;
page += FPSTR(HTTP_HEAD_END);
page += F("Module will reset in a few seconds.");
page += FPSTR(HTTP_END);
request->send(200, "text/html", page);
DEBUG_WM(F("Sent reset page"));
delay(5000);
#if defined(ESP8266)
ESP.reset();
#else
ESP.restart();
#endif
delay(2000);
}
//removed as mentioned here https://github.com/tzapu/AsyncWiFiManager/issues/114
/*void AsyncWiFiManager::handle204(AsyncWebServerRequest *request) {
DEBUG_WM(F("204 No Response"));
request->sendHeader("Cache-Control", "no-cache, no-store, must-revalidate");
request->sendHeader("Pragma", "no-cache");
request->sendHeader("Expires", "-1");
request->send ( 204, "text/plain", "");
}*/
void AsyncWiFiManager::handleNotFound(AsyncWebServerRequest *request) {
DEBUG_WM(F("Handle not found"));
if (captivePortal(request)) { // If captive portal redirect instead of displaying the error page.
return;
}
String message = "File Not Found\n\n";
message += "URI: ";
message += request->url();
message += "\nMethod: ";
message += ( request->method() == HTTP_GET ) ? "GET" : "POST";
message += "\nArguments: ";
message += request->args();
message += "\n";
for ( uint8_t i = 0; i < request->args(); i++ ) {
message += " " + request->argName ( i ) + ": " + request->arg ( i ) + "\n";
}
AsyncWebServerResponse *response = request->beginResponse(404,"text/plain",message);
response->addHeader("Cache-Control", "no-cache, no-store, must-revalidate");
response->addHeader("Pragma", "no-cache");
response->addHeader("Expires", "-1");
request->send (response );
}
/** Redirect to captive portal if we got a request for another domain. Return true in that case so the page handler do not try to handle the request again. */
boolean AsyncWiFiManager::captivePortal(AsyncWebServerRequest *request) {
if (!isIp(request->host()) ) {
DEBUG_WM(F("Request redirected to captive portal"));
AsyncWebServerResponse *response = request->beginResponse(302,"text/plain","");
response->addHeader("Location", String("http://") + toStringIp(request->client()->localIP()));
request->send ( response);
return true;
}
return false;
}
//start up config portal callback
void AsyncWiFiManager::setAPCallback( void (*func)(AsyncWiFiManager* myAsyncWiFiManager) ) {
_apcallback = func;
}
//start up save config callback
void AsyncWiFiManager::setSaveConfigCallback( void (*func)(void) ) {
_savecallback = func;
}
//sets a custom element to add to head, like a new style tag
void AsyncWiFiManager::setCustomHeadElement(const char* element) {
_customHeadElement = element;
}
//sets a custom element to add to options page
void AsyncWiFiManager::setCustomOptionsElement(const char* element) {
_customOptionsElement = element;
}
//if this is true, remove duplicated Access Points - defaut true
void AsyncWiFiManager::setRemoveDuplicateAPs(boolean removeDuplicates) {
_removeDuplicateAPs = removeDuplicates;
}
template <typename Generic>
void AsyncWiFiManager::DEBUG_WM(Generic text) {
if (_debug) {
Serial.print("*WM: ");
Serial.println(text);
}
}
int AsyncWiFiManager::getRSSIasQuality(int RSSI) {
int quality = 0;
if (RSSI <= -100) {
quality = 0;
} else if (RSSI >= -50) {
quality = 100;
} else {
quality = 2 * (RSSI + 100);
}
return quality;
}
/** Is this an IP? */
boolean AsyncWiFiManager::isIp(String str) {
for (int i = 0; i < str.length(); i++) {
int c = str.charAt(i);
if (c != '.' && (c < '0' || c > '9')) {
return false;
}
}
return true;
}
/** IP to String? */
String AsyncWiFiManager::toStringIp(IPAddress ip) {
String res = "";
for (int i = 0; i < 3; i++) {
res += String((ip >> (8 * i)) & 0xFF) + ".";
}
res += String(((ip >> 8 * 3)) & 0xFF);
return res;
}
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