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WiFiManager.cpp
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WiFiManager.cpp
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/**
* WiFiManager.cpp
*
* WiFiManager, a library for the ESP8266/Arduino platform
* for configuration of WiFi credentials using a Captive Portal
*
* @author Creator tzapu
* @author tablatronix
* @version 0.0.0
* @license MIT
*/
#include "WiFiManager.h"
#if defined(ESP8266) || defined(ESP32)
#ifdef ESP32
uint8_t WiFiManager::_lastconxresulttmp = WL_IDLE_STATUS;
#endif
/**
* --------------------------------------------------------------------------------
* WiFiManagerParameter
* --------------------------------------------------------------------------------
**/
WiFiManagerParameter::WiFiManagerParameter() {
WiFiManagerParameter("");
}
WiFiManagerParameter::WiFiManagerParameter(const char *custom) {
_id = NULL;
_label = NULL;
_length = 1;
_value = NULL;
_labelPlacement = WFM_LABEL_BEFORE;
_customHTML = custom;
}
WiFiManagerParameter::WiFiManagerParameter(const char *id, const char *label) {
init(id, label, "", 0, "", WFM_LABEL_BEFORE);
}
WiFiManagerParameter::WiFiManagerParameter(const char *id, const char *label, const char *defaultValue, int length) {
init(id, label, defaultValue, length, "", WFM_LABEL_BEFORE);
}
WiFiManagerParameter::WiFiManagerParameter(const char *id, const char *label, const char *defaultValue, int length, const char *custom) {
init(id, label, defaultValue, length, custom, WFM_LABEL_BEFORE);
}
WiFiManagerParameter::WiFiManagerParameter(const char *id, const char *label, const char *defaultValue, int length, const char *custom, int labelPlacement) {
init(id, label, defaultValue, length, custom, labelPlacement);
}
void WiFiManagerParameter::init(const char *id, const char *label, const char *defaultValue, int length, const char *custom, int labelPlacement) {
_id = id;
_label = label;
_labelPlacement = labelPlacement;
_customHTML = custom;
setValue(defaultValue,length);
}
WiFiManagerParameter::~WiFiManagerParameter() {
if (_value != NULL) {
delete[] _value;
}
_length=0; // setting length 0, ideally the entire parameter should be removed, or added to wifimanager scope so it follows
}
// WiFiManagerParameter& WiFiManagerParameter::operator=(const WiFiManagerParameter& rhs){
// Serial.println("copy assignment op called");
// (*this->_value) = (*rhs._value);
// return *this;
// }
// @note debug is not available in wmparameter class
void WiFiManagerParameter::setValue(const char *defaultValue, int length) {
if(!_id){
// Serial.println("cannot set value of this parameter");
return;
}
// if(strlen(defaultValue) > length){
// // Serial.println("defaultValue length mismatch");
// // return false; //@todo bail
// }
_length = length;
_value = new char[_length + 1];
memset(_value, 0, _length + 1); // explicit null
if (defaultValue != NULL) {
strncpy(_value, defaultValue, _length);
}
}
const char* WiFiManagerParameter::getValue() {
// Serial.println(printf("Address of _value is %p\n", (void *)_value));
return _value;
}
const char* WiFiManagerParameter::getID() {
return _id;
}
const char* WiFiManagerParameter::getPlaceholder() {
return _label;
}
const char* WiFiManagerParameter::getLabel() {
return _label;
}
int WiFiManagerParameter::getValueLength() {
return _length;
}
int WiFiManagerParameter::getLabelPlacement() {
return _labelPlacement;
}
const char* WiFiManagerParameter::getCustomHTML() {
return _customHTML;
}
/**
* [addParameter description]
* @access public
* @param {[type]} WiFiManagerParameter *p [description]
*/
bool WiFiManager::addParameter(WiFiManagerParameter *p) {
// check param id is valid, unless null
if(p->getID()){
for (size_t i = 0; i < strlen(p->getID()); i++){
if(!(isAlphaNumeric(p->getID()[i])) && !(p->getID()[i]=='_')){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_ERROR,F("[ERROR] parameter IDs can only contain alpha numeric chars"));
#endif
return false;
}
}
}
// init params if never malloc
if(_params == NULL){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("allocating params bytes:"),_max_params * sizeof(WiFiManagerParameter*));
#endif
_params = (WiFiManagerParameter**)malloc(_max_params * sizeof(WiFiManagerParameter*));
}
// resize the params array by increment of WIFI_MANAGER_MAX_PARAMS
if(_paramsCount == _max_params){
_max_params += WIFI_MANAGER_MAX_PARAMS;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("Updated _max_params:"),_max_params);
DEBUG_WM(DEBUG_DEV,F("re-allocating params bytes:"),_max_params * sizeof(WiFiManagerParameter*));
#endif
WiFiManagerParameter** new_params = (WiFiManagerParameter**)realloc(_params, _max_params * sizeof(WiFiManagerParameter*));
#ifdef WM_DEBUG_LEVEL
// DEBUG_WM(WIFI_MANAGER_MAX_PARAMS);
// DEBUG_WM(_paramsCount);
// DEBUG_WM(_max_params);
#endif
if (new_params != NULL) {
_params = new_params;
} else {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_ERROR,F("[ERROR] failed to realloc params, size not increased!"));
#endif
return false;
}
}
_params[_paramsCount] = p;
_paramsCount++;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Added Parameter:"),p->getID());
#endif
return true;
}
/**
* [getParameters description]
* @access public
*/
WiFiManagerParameter** WiFiManager::getParameters() {
return _params;
}
/**
* [getParametersCount description]
* @access public
*/
int WiFiManager::getParametersCount() {
return _paramsCount;
}
/**
* --------------------------------------------------------------------------------
* WiFiManager
* --------------------------------------------------------------------------------
**/
// constructors
WiFiManager::WiFiManager(Stream& consolePort):_debugPort(consolePort){
WiFiManagerInit();
}
WiFiManager::WiFiManager() {
WiFiManagerInit();
}
void WiFiManager::WiFiManagerInit(){
setMenu(_menuIdsDefault);
if(_debug && _debugLevel >= DEBUG_DEV) debugPlatformInfo();
_max_params = WIFI_MANAGER_MAX_PARAMS;
}
// destructor
WiFiManager::~WiFiManager() {
_end();
// parameters
// @todo below belongs to wifimanagerparameter
if (_params != NULL){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("freeing allocated params!"));
#endif
free(_params);
_params = NULL;
}
// @todo remove event
// WiFi.onEvent(std::bind(&WiFiManager::WiFiEvent,this,_1,_2));
#ifdef ESP32
WiFi.removeEvent(wm_event_id);
#endif
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("unloading"));
#endif
}
void WiFiManager::_begin(){
if(_hasBegun) return;
_hasBegun = true;
// _usermode = WiFi.getMode();
#ifndef ESP32
WiFi.persistent(false); // disable persistent so scannetworks and mode switching do not cause overwrites
#endif
}
void WiFiManager::_end(){
_hasBegun = false;
if(_userpersistent) WiFi.persistent(true); // reenable persistent, there is no getter we rely on _userpersistent
// if(_usermode != WIFI_OFF) WiFi.mode(_usermode);
}
// AUTOCONNECT
boolean WiFiManager::autoConnect() {
String ssid = getDefaultAPName();
return autoConnect(ssid.c_str(), NULL);
}
/**
* [autoConnect description]
* @access public
* @param {[type]} char const *apName [description]
* @param {[type]} char const *apPassword [description]
* @return {[type]} [description]
*/
boolean WiFiManager::autoConnect(char const *apName, char const *apPassword) {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("AutoConnect"));
#endif
if(getWiFiIsSaved()){
_begin();
// attempt to connect using saved settings, on fail fallback to AP config portal
if(!WiFi.enableSTA(true)){
// handle failure mode Brownout detector etc.
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_ERROR,F("[FATAL] Unable to enable wifi!"));
#endif
return false;
}
WiFiSetCountry();
#ifdef ESP32
if(esp32persistent) WiFi.persistent(false); // disable persistent for esp32 after esp_wifi_start or else saves wont work
#endif
_usermode = WIFI_STA; // When using autoconnect , assume the user wants sta mode on permanently.
// no getter for autoreconnectpolicy before this
// https://github.com/esp8266/Arduino/pull/4359
// so we must force it on else, if not connectimeout then waitforconnectionresult gets stuck endless loop
WiFi_autoReconnect();
// set hostname before stating
if((String)_hostname != ""){
setupHostname(true);
}
// if already connected, or try stored connect
// @note @todo ESP32 has no autoconnect, so connectwifi will always be called unless user called begin etc before
// @todo check if correct ssid == saved ssid when already connected
bool connected = false;
if (WiFi.status() == WL_CONNECTED){
connected = true;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("AutoConnect: ESP Already Connected"));
#endif
setSTAConfig();
// @todo not sure if this check makes sense, causes dup setSTAConfig in connectwifi,
// and we have no idea WHAT we are connected to
}
if(connected || connectWifi(_defaultssid, _defaultpass) == WL_CONNECTED){
//connected
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("AutoConnect: SUCCESS"));
DEBUG_WM(F("STA IP Address:"),WiFi.localIP());
#endif
_lastconxresult = WL_CONNECTED;
if((String)_hostname != ""){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("hostname: STA: "),getWiFiHostname());
#endif
}
return true; // connected success
}
// possibly skip the config portal
if (!_enableConfigPortal) {
return false; // not connected and not cp
}
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("AutoConnect: FAILED"));
#endif
}
else {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("No Credentials are Saved, skipping connect"));
#endif
}
// not connected start configportal
bool res = startConfigPortal(apName, apPassword);
return res;
}
bool WiFiManager::setupHostname(bool restart){
if((String)_hostname == "") {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("No Hostname to set"));
#endif
return false;
}
else {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("setupHostname: "),_hostname);
#endif
}
bool res = true;
#ifdef ESP8266
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Setting WiFi hostname"));
#endif
res = WiFi.hostname(_hostname);
// #ifdef ESP8266MDNS_H
#ifdef WM_MDNS
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Setting MDNS hostname, tcp 80"));
#endif
if(MDNS.begin(_hostname)){
MDNS.addService("http", "tcp", 80);
}
#endif
#elif defined(ESP32)
// @note hostname must be set after STA_START
delay(200); // do not remove, give time for STA_START
res = WiFi.setHostname(_hostname);
// #ifdef ESP32MDNS_H
#ifdef WM_MDNS
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Setting MDNS hostname, tcp 80"));
#endif
if(MDNS.begin(_hostname)){
MDNS.addService("http", "tcp", 80);
}
#endif
#endif
#ifdef WM_DEBUG_LEVEL
if(!res)DEBUG_WM(DEBUG_ERROR,F("[ERROR] hostname: set failed!"));
#endif
if(restart && (WiFi.status() == WL_CONNECTED)){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("reconnecting to set new hostname"));
#endif
// WiFi.reconnect(); // This does not reset dhcp
WiFi_Disconnect();
delay(200); // do not remove, need a delay for disconnect to change status()
}
return res;
}
// CONFIG PORTAL
bool WiFiManager::startAP(){
bool ret = true;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("StartAP with SSID: "),_apName);
#endif
#ifdef ESP8266
// @bug workaround for bug #4372 https://github.com/esp8266/Arduino/issues/4372
if(!WiFi.enableAP(true)) {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_ERROR,F("[ERROR] enableAP failed!"));
#endif
return false;
}
delay(500); // workaround delay
#endif
// setup optional soft AP static ip config
if (_ap_static_ip) {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("Custom AP IP/GW/Subnet:"));
#endif
if(!WiFi.softAPConfig(_ap_static_ip, _ap_static_gw, _ap_static_sn)){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_ERROR,F("[ERROR] softAPConfig failed!"));
#endif
}
}
//@todo add callback here if needed to modify ap but cannot use setAPStaticIPConfig
//@todo rework wifi channelsync as it will work unpredictably when not connected in sta
int32_t channel = 0;
if(_channelSync) channel = WiFi.channel();
else channel = _apChannel;
if(channel>0){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Starting AP on channel:"),channel);
#endif
}
// start soft AP with password or anonymous
// default channel is 1 here and in esplib, @todo just change to default remove conditionals
if (_apPassword != "") {
if(channel>0){
ret = WiFi.softAP(_apName.c_str(), _apPassword.c_str(),channel,_apHidden);
}
else{
ret = WiFi.softAP(_apName.c_str(), _apPassword.c_str(),1,_apHidden);//password option
}
} else {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("AP has anonymous access!"));
#endif
if(channel>0){
ret = WiFi.softAP(_apName.c_str(),"",channel,_apHidden);
}
else{
ret = WiFi.softAP(_apName.c_str(),"",1,_apHidden);
}
}
if(_debugLevel >= DEBUG_DEV) debugSoftAPConfig();
// @todo add softAP retry here
delay(500); // slight delay to make sure we get an AP IP
#ifdef WM_DEBUG_LEVEL
if(!ret) DEBUG_WM(DEBUG_ERROR,F("[ERROR] There was a problem starting the AP"));
DEBUG_WM(F("AP IP address:"),WiFi.softAPIP());
#endif
// set ap hostname
#ifdef ESP32
if(ret && (String)_hostname != ""){
bool res = WiFi.softAPsetHostname(_hostname);
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("setting softAP Hostname:"),_hostname);
if(!res)DEBUG_WM(DEBUG_ERROR,F("[ERROR] hostname: AP set failed!"));
DEBUG_WM(DEBUG_DEV,F("hostname: AP: "),WiFi.softAPgetHostname());
#endif
}
#endif
return ret;
}
/**
* [startWebPortal description]
* @access public
* @return {[type]} [description]
*/
void WiFiManager::startWebPortal() {
if(configPortalActive || webPortalActive) return;
setupConfigPortal();
webPortalActive = true;
}
/**
* [stopWebPortal description]
* @access public
* @return {[type]} [description]
*/
void WiFiManager::stopWebPortal() {
if(!configPortalActive && !webPortalActive) return;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Stopping Web Portal"));
#endif
webPortalActive = false;
shutdownConfigPortal();
}
boolean WiFiManager::configPortalHasTimeout(){
uint16_t logintvl = 30000; // how often to emit timeing out counter logging
// handle timeout portal client check
if(_configPortalTimeout == 0 || (_apClientCheck && (WiFi_softap_num_stations() > 0))){
// debug num clients every 30s
if(millis() - timer > logintvl){
timer = millis();
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("NUM CLIENTS: "),(String)WiFi_softap_num_stations());
#endif
}
_configPortalStart = millis(); // kludge, bump configportal start time to skew timeouts
return false;
}
// handle timeout webclient check
if(_webClientCheck && (_webPortalAccessed>_configPortalStart)>0) _configPortalStart = _webPortalAccessed;
// handle timed out
if(millis() > _configPortalStart + _configPortalTimeout){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("config portal has timed out"));
#endif
return true; // timeout bail, else do debug logging
}
else if(_debug && _debugLevel > 0) {
// log timeout time remaining every 30s
if((millis() - timer) > logintvl){
timer = millis();
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Portal Timeout In"),(String)((_configPortalStart + _configPortalTimeout-millis())/1000) + (String)F(" seconds"));
#endif
}
}
return false;
}
void WiFiManager::setupDNSD(){
dnsServer.reset(new DNSServer());
/* Setup the DNS server redirecting all the domains to the apIP */
dnsServer->setErrorReplyCode(DNSReplyCode::NoError);
#ifdef WM_DEBUG_LEVEL
// DEBUG_WM("dns server started port: ",DNS_PORT);
DEBUG_WM(DEBUG_DEV,F("dns server started with ip: "),WiFi.softAPIP()); // @todo not showing ip
#endif
dnsServer->start(DNS_PORT, F("*"), WiFi.softAPIP());
}
void WiFiManager::setupConfigPortal() {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("Starting Web Portal"));
#endif
// setup dns and web servers
server.reset(new WM_WebServer(_httpPort));
if(_httpPort != 80) {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("http server started with custom port: "),_httpPort); // @todo not showing ip
#endif
}
if ( _webservercallback != NULL) {
_webservercallback();
}
// @todo add a new callback maybe, after webserver started, callback cannot override handlers, but can grab them first
/* Setup httpd callbacks, web pages: root, wifi config pages, SO captive portal detectors and not found. */
server->on(String(FPSTR(R_root)).c_str(), std::bind(&WiFiManager::handleRoot, this));
server->on(String(FPSTR(R_wifi)).c_str(), std::bind(&WiFiManager::handleWifi, this, true));
server->on(String(FPSTR(R_wifinoscan)).c_str(), std::bind(&WiFiManager::handleWifi, this, false));
server->on(String(FPSTR(R_wifisave)).c_str(), std::bind(&WiFiManager::handleWifiSave, this));
server->on(String(FPSTR(R_info)).c_str(), std::bind(&WiFiManager::handleInfo, this));
server->on(String(FPSTR(R_param)).c_str(), std::bind(&WiFiManager::handleParam, this));
server->on(String(FPSTR(R_paramsave)).c_str(), std::bind(&WiFiManager::handleParamSave, this));
server->on(String(FPSTR(R_restart)).c_str(), std::bind(&WiFiManager::handleReset, this));
server->on(String(FPSTR(R_exit)).c_str(), std::bind(&WiFiManager::handleExit, this));
server->on(String(FPSTR(R_close)).c_str(), std::bind(&WiFiManager::handleClose, this));
server->on(String(FPSTR(R_erase)).c_str(), std::bind(&WiFiManager::handleErase, this, false));
server->on(String(FPSTR(R_status)).c_str(), std::bind(&WiFiManager::handleWiFiStatus, this));
server->onNotFound (std::bind(&WiFiManager::handleNotFound, this));
server->on(String(FPSTR(R_update)).c_str(), std::bind(&WiFiManager::handleUpdate, this));
server->on(String(FPSTR(R_updatedone)).c_str(), HTTP_POST, std::bind(&WiFiManager::handleUpdateDone, this), std::bind(&WiFiManager::handleUpdating, this));
server->begin(); // Web server start
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("HTTP server started"));
#endif
if(_preloadwifiscan) WiFi_scanNetworks(true,true); // preload wifiscan , async
}
boolean WiFiManager::startConfigPortal() {
String ssid = getDefaultAPName();
return startConfigPortal(ssid.c_str(), NULL);
}
/**
* [startConfigPortal description]
* @access public
* @param {[type]} char const *apName [description]
* @param {[type]} char const *apPassword [description]
* @return {[type]} [description]
*/
boolean WiFiManager::startConfigPortal(char const *apName, char const *apPassword) {
_begin();
//setup AP
_apName = apName; // @todo check valid apname ?
_apPassword = apPassword;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Starting Config Portal"));
#endif
if(_apName == "") _apName = getDefaultAPName();
if(!validApPassword()) return false;
// HANDLE issues with STA connections, shutdown sta if not connected, or else this will hang channel scanning and softap will not respond
// @todo sometimes still cannot connect to AP for no known reason, no events in log either
if(_disableSTA || (!WiFi.isConnected() && _disableSTAConn)){
// this fixes most ap problems, however, simply doing mode(WIFI_AP) does not work if sta connection is hanging, must `wifi_station_disconnect`
WiFi_Disconnect();
WiFi_enableSTA(false);
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Disabling STA"));
#endif
}
else {
// @todo even if sta is connected, it is possible that softap connections will fail, IOS says "invalid password", windows says "cannot connect to this network" researching
WiFi_enableSTA(true);
}
// init configportal globals to known states
configPortalActive = true;
bool result = connect = abort = false; // loop flags, connect true success, abort true break
uint8_t state;
_configPortalStart = millis();
// start access point
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Enabling AP"));
#endif
startAP();
WiFiSetCountry();
// do AP callback if set
if ( _apcallback != NULL) {
_apcallback(this);
}
// init configportal
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("setupConfigPortal"));
#endif
setupConfigPortal();
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("setupDNSD"));
#endif
setupDNSD();
if(!_configPortalIsBlocking){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Config Portal Running, non blocking/processing"));
if(_configPortalTimeout > 0) DEBUG_WM(DEBUG_VERBOSE,F("Portal Timeout In"),(String)(_configPortalTimeout/1000) + (String)F(" seconds"));
#endif
return result;
}
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Config Portal Running, blocking, waiting for clients..."));
if(_configPortalTimeout > 0) DEBUG_WM(DEBUG_VERBOSE,F("Portal Timeout In"),(String)(_configPortalTimeout/1000) + (String)F(" seconds"));
#endif
// blocking loop waiting for config
while(1){
// if timed out or abort, break
if(configPortalHasTimeout() || abort){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_DEV,F("configportal abort"));
#endif
shutdownConfigPortal();
result = abort ? portalAbortResult : portalTimeoutResult; // false, false
break;
}
state = processConfigPortal();
// status change, break
if(state != WL_IDLE_STATUS){
result = (state == WL_CONNECTED); // true if connected
break;
}
yield(); // watchdog
}
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_NOTIFY,F("config portal exiting"));
#endif
return result;
}
/**
* [process description]
* @access public
* @return {[type]} [description]
*/
boolean WiFiManager::process(){
// process mdns, esp32 not required
#if defined(WM_MDNS) && defined(ESP8266)
MDNS.update();
#endif
if(webPortalActive || (configPortalActive && !_configPortalIsBlocking)){
uint8_t state = processConfigPortal();
return state == WL_CONNECTED;
}
return false;
}
//using esp enums returns for now, should be fine
uint8_t WiFiManager::processConfigPortal(){
if(configPortalActive){
//DNS handler
dnsServer->processNextRequest();
}
//HTTP handler
server->handleClient();
// Waiting for save...
if(connect) {
connect = false;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("processing save"));
#endif
if(_enableCaptivePortal) delay(_cpclosedelay); // keeps the captiveportal from closing to fast.
// skip wifi if no ssid
if(_ssid == ""){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("No ssid, skipping wifi save"));
#endif
}
else{
// attempt sta connection to submitted _ssid, _pass
if (connectWifi(_ssid, _pass) == WL_CONNECTED) {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("Connect to new AP [SUCCESS]"));
DEBUG_WM(F("Got IP Address:"));
DEBUG_WM(WiFi.localIP());
#endif
if ( _savewificallback != NULL) {
_savewificallback();
}
shutdownConfigPortal();
return WL_CONNECTED; // CONNECT SUCCESS
}
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_ERROR,F("[ERROR] Connect to new AP Failed"));
#endif
}
if (_shouldBreakAfterConfig) {
// do save callback
// @todo this is more of an exiting callback than a save, clarify when this should actually occur
// confirm or verify data was saved to make this more accurate callback
if ( _savewificallback != NULL) {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("WiFi/Param save callback"));
#endif
_savewificallback();
}
shutdownConfigPortal();
return WL_CONNECT_FAILED; // CONNECT FAIL
}
else{
// clear save strings
_ssid = "";
_pass = "";
// if connect fails, turn sta off to stabilize AP
WiFi_Disconnect();
WiFi_enableSTA(false);
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Disabling STA"));
#endif
}
}
return WL_IDLE_STATUS;
}
/**
* [shutdownConfigPortal description]
* @access public
* @return bool success (softapdisconnect)
*/
bool WiFiManager::shutdownConfigPortal(){
if(webPortalActive) return false;
if(configPortalActive){
//DNS handler
dnsServer->processNextRequest();
}
//HTTP handler
server->handleClient();
// @todo what is the proper way to shutdown and free the server up
server->stop();
server.reset();
WiFi.scanDelete(); // free wifi scan results
if(!configPortalActive) return false;
dnsServer->stop(); // free heap ?
dnsServer.reset();
// turn off AP
// @todo bug workaround
// https://github.com/esp8266/Arduino/issues/3793
// [APdisconnect] set_config failed! *WM: disconnect configportal - softAPdisconnect failed
// still no way to reproduce reliably
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("disconnect configportal"));
#endif
bool ret = false;
ret = WiFi.softAPdisconnect(false);
#ifdef WM_DEBUG_LEVEL
if(!ret)DEBUG_WM(DEBUG_ERROR,F("[ERROR] disconnect configportal - softAPdisconnect FAILED"));
DEBUG_WM(DEBUG_VERBOSE,F("restoring usermode"),getModeString(_usermode));
#endif
delay(1000);
WiFi_Mode(_usermode); // restore users wifi mode, BUG https://github.com/esp8266/Arduino/issues/4372
if(WiFi.status()==WL_IDLE_STATUS){
WiFi.reconnect(); // restart wifi since we disconnected it in startconfigportal
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("WiFi Reconnect, was idle"));
#endif
}
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("wifi status:"),getWLStatusString(WiFi.status()));
DEBUG_WM(DEBUG_VERBOSE,F("wifi mode:"),getModeString(WiFi.getMode()));
#endif
configPortalActive = false;
_end();
return ret;
}
// @todo refactor this up into seperate functions
// one for connecting to flash , one for new client
// clean up, flow is convoluted, and causes bugs
uint8_t WiFiManager::connectWifi(String ssid, String pass) {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Connecting as wifi client..."));
#endif
uint8_t retry = 1;
uint8_t connRes = (uint8_t)WL_NO_SSID_AVAIL;
setSTAConfig();
//@todo catch failures in set_config
// make sure sta is on before `begin` so it does not call enablesta->mode while persistent is ON ( which would save WM AP state to eeprom !)
if(_cleanConnect) WiFi_Disconnect(); // disconnect before begin, in case anything is hung, this causes a 2 seconds delay for connect
// @todo find out what status is when this is needed, can we detect it and handle it, say in between states or idle_status
while(retry <= _connectRetries && (connRes!=WL_CONNECTED)){
if(_connectRetries > 1){
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("Connect Wifi, ATTEMPT #"),(String)retry+" of "+(String)_connectRetries);
#endif
}
// if ssid argument provided connect to that
if (ssid != "") {
wifiConnectNew(ssid,pass);
if(_saveTimeout > 0){
connRes = waitForConnectResult(_saveTimeout); // use default save timeout for saves to prevent bugs in esp->waitforconnectresult loop
}
else {
connRes = waitForConnectResult(0);
}
}
else {
// connect using saved ssid if there is one
if (WiFi_hasAutoConnect()) {
wifiConnectDefault();
connRes = waitForConnectResult();
}
else {
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("No wifi saved, skipping"));
#endif
}
}
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(DEBUG_VERBOSE,F("Connection result:"),getWLStatusString(connRes));
#endif
retry++;
}
// WPS enabled? https://github.com/esp8266/Arduino/pull/4889
#ifdef NO_EXTRA_4K_HEAP
// do WPS, if WPS options enabled and not connected and no password was supplied
// @todo this seems like wrong place for this, is it a fallback or option?
if (_tryWPS && connRes != WL_CONNECTED && pass == "") {
startWPS();
// should be connected at the end of WPS
connRes = waitForConnectResult();
}
#endif
if(connRes != WL_SCAN_COMPLETED){
updateConxResult(connRes);
}
return connRes;
}
/**
* connect to a new wifi ap
* @since $dev
* @param String ssid
* @param String pass
* @return bool success
*/
bool WiFiManager::wifiConnectNew(String ssid, String pass){
bool ret = false;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("CONNECTED:"),WiFi.status() == WL_CONNECTED);
DEBUG_WM(F("Connecting to NEW AP:"),ssid);
DEBUG_WM(DEBUG_DEV,F("Using Password:"),pass);
#endif
WiFi_enableSTA(true,storeSTAmode); // storeSTAmode will also toggle STA on in default opmode (persistent) if true (default)
WiFi.persistent(true);
ret = WiFi.begin(ssid.c_str(), pass.c_str());
WiFi.persistent(false);
#ifdef WM_DEBUG_LEVEL
if(!ret) DEBUG_WM(DEBUG_ERROR,F("[ERROR] wifi begin failed"));
#endif
return ret;
}
/**
* connect to stored wifi
* @since dev
* @return bool success
*/
bool WiFiManager::wifiConnectDefault(){
bool ret = false;
#ifdef WM_DEBUG_LEVEL
DEBUG_WM(F("Connecting to SAVED AP:"),WiFi_SSID(true));
DEBUG_WM(DEBUG_DEV,F("Using Password:"),WiFi_psk(true));
#endif