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WiFiConfig/WiFiConfig.cpp

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/*
* V5.4 - 9.1.2018 - na titulni stranku pridan duvod, proc je spusteny konfiguracni AP. Usnadni to diagnostiku pripadu, kdy se ESP nechce pripojit k AP.
*
* V5.3 - 8.12.2017 - prepracovano presmerovani v Captive portalu, DEBUG_MSG makro upraveno na posledni pouzivanou verzi, scitani retezcu prepracovano na .concat. Pripsany Informace o modulu, reakce na Reset
*
* V5.2 - 20.4.2017 - Pokud je pouzite v timeoutu EC_DONT_RUN_CONFIGAP tak se vracime okamzite a necekame na pripojeni k WiFi (take nevolame zadnou callback metodu).
* Navratovy kod je pak WCR_CONFIGAP_NOT_STARTED .
*
* V5.1 - 3.4.2017 - Webove rozhrani upravene pro snadnejsi ovladani na telefonu/tabletu, sila signalu AP zobrazena jako barevne odliseny indikator.
*
* V5.0 - 29.10.2016- Vyuziti vlastnosti ESP, ktere si uklada wifi konfiguraci do sve vlastni flash oblasti, takze nemusim vse konfigurovat znovu po startu - doufam, ze se tim zrychli asociace s AP
* kvuli bateriove napajenym pristrojum.
*
* V4.7 - 30.8.2016 - Metody .begin se nyni vraci s wificonfigresult_t (podarilo se pripojit k AP, nepodarilo se pripojit a vyprsel timeout pro konfiguracni AP, nepodarilo se pripojit, ale je zakazane spousteni konfiguracniho AP).
* ESP NYNI NENI RESETOVAN PO VYPRSENI TIMEOUTU!!!! Je to kvuli bateriovym cidlum a DeepSleep rezimu v situaci, kdy zmizi AP, ke kteremu se bezne pripojujeme
* Odstraneno odesilani reakce na generate_204 (viz. https://github.com/tzapu/WiFiManager/issues/114)
* Zbytek MAC adresy v pripadnem SSID je nyni vzdy velkymi pismeny (UAA Unique Address Assignment)
* Kvalita signalu jednotlivych AP je nyni uvadena v % namisto uzivatelum nic nerikajicich -dBm
* Pokud do polozky timeout v .begin() metode zadame hodnotu WC_DONT_RUN_CONFIGAP, tak i po neuspesnem pokusu o pripojeni do site NENI spusteny konfiguracni AP (bateriove pristroje, stale bezici pristroje)
*
* V4.6 - 26.7.2016 - Moznost nastavit cislo kanalu pro rezim AP, nove eye-candy rozhrani.
*
* V4.5 - 20.7.2016 - Moznost konfigurovat cislo kanalu pro nastavovaci AP (default je 3), po nacteni konfiguracni stranky je nastaveny timeout na 6 minut, pokud je ve jmenu SSID pro konfiguracni
* AP znak ? (otaznik), tak je tento nahrazen HEXASCII reprezentaci 3 poslednich bytu MAC adresy AP (POZOR!!! je jina, nez STA!!!)
*
* V4.4 - 10.7.2016 - Zmena nazvu vsech privatnich metod (doplnene uvodni podtrzitko _). Pokud tam nebylo, tak napriklad nesel prelozit skript s handleNotFound pokud nebyl dopredne deklarovany (asi zmatek v Arduino preprocesoru)
*
* V4.3 - 23.6.2016 - Kazde nacteni webove stranky prodluzuje pripadny timeout pro restart zarizeni.
*
* V4.2 - 10.6.2016 - DNSServer a WebServer ukazatele jsou nyni staticke primo v modulu WiFiConfig. Predchozi verze neumoznila soucasne pouziti s knihovnami ESPAsyncWebServer z duvodu kolize nekterych definic HTTP metod
*
* V4.1 - 18.5.2016 - Nenechame SDK ukladat WiFi konfiguraci do Flash (setrime prepisy)
*
* V4.0 - 10.4.2016 - pridana moznost staticke konfigurace ip parametru. POZOR!!!! ukladani dat do EEPROM (verejne funkce) nyni nevolaji automaticky commit() kvuli snizeni poctu prepisu Flash EEPROM
* pridana moznost timeoutu pro konfiguracni AP. Pokud timeout vyprsi, tak se zarizeni automaticky restartuje, coz vyvola novy pokus o pripojeni.
*
* V3.0 - 27.2.2016 - pridana presmerovavaci stranka kvuli Captive portalu, doplneno servirovani favicon.ico, doplnena moznost zadavani uzivatelskych parametru, www server a DNS server jsou dynamicky vytvareny
*
* V2.4 - 7.2.2016 - upraveno casovani pri pripojovani k AP (zmizel delay(100))
*
* V2.3 - 5.2.2016 - pridano zverejneni jmena hosta a nastaveni tohoto jmena pro DHCP apod.
*
* V2.2 - 19.1.2016 - pridan Captive portal pri konfiguracnim AP.
*
* V2.1 - 20.9.2015 - pridano zadavani jmena zarizeni. Modul ho sice nevyuziva, ale aplikace ano a v pripade DHCP se dost hodi.
*
* V2.0 - 30.8.2015 - Podstatnym zpusobem vylepsena signalizace vnitrniho stavu, presunuto ulozeni rezimu (commit je uz zbytecny - udela se pri ukladani retezcu - uspora kodu/setreni prepisu pameti Flash)
*
* V1.2 - 23.8.2015 - BugFix - pridan chybejici eeprom.commit() po ulozeni rezimu prace
*
* V1.1 - 5.8.2015 - pridana moznost volani callback metody pri behu konfiguracniho AP (signalizace stavu uzivatelskym zpusobem)
*
* V1.0 - publikace na www.xpablo.cz
*
* TODO:
* Prejit na pripojovani pomoci vnitrnich mechanizmu SDK ESP - zvysi se tim rychlost pripojeni kvuli bateriovym zarizenim
*/
#include "WiFiConfig.h"
#include <ESP8266WebServer.h>
#include <DNSServer.h>
#include <EEPROM.h>
#include <Ticker.h>
#include "embHTML.h"
#ifdef DEBUG_ESP_PORT
#define DEBUG_MSG(_1, ...) DEBUG_ESP_PORT.printf_P(PSTR(_1), ##__VA_ARGS__)
#else
#define DEBUG_MSG(...)
#endif
extern "C" {
#include "user_interface.h"
}
#define DNS_PORT 53
char WiFiDeviceName[elementSize(wificonfigarea_t, devname)]; // misto pro jmeno zarizeni (dodane do DNS, DHCP NBNS apod...)
enum
{
WIFIMODE_AP = WIFI_AP, // rezim prace jako pristupovy bod (AP)
WIFIMODE_STA = WIFI_STA, // rezim prace jako klient
WIFIMODE_AP_STA = WIFI_AP_STA // rezim prace jako klient i pristupovy bod
};
enum
{
IPCONFIG_DHCP = 0x55, // DHCP konfigurace ip adres (default)
IPCONFIG_STATIC = 0xaa // staticka konfigurace ip adres
};
static int configBase; // musi byt trvale ulozene, aby fungovaly metody pro ziskani retezcu z EEPROM
static std::unique_ptr<DNSServer> dnsServer;
static std::unique_ptr<ESP8266WebServer> server;
static std::unique_ptr<Ticker> rsttick;
const char VALUE[] PROGMEM = "value='";
const char CHECKED[] PROGMEM = "checked='checked'";
IPAddress getOurIP(void)
{
IPAddress ipa;
WiFiMode_t wm = WiFi.getMode();
switch (wm)
{
case WIFI_STA:
ipa = WiFi.localIP();
break;
case WIFI_AP:
ipa = WiFi.softAPIP();
break;
default:
ipa = IPAddress(0,0,0,0); // nelze urcit ip adresu (bud je AP + STA aktivni, nebo je vypnute WiFi)
break;
}
return ipa;
}
uint8_t * getOurMAC(uint8_t *mac)
{
if (WIFIMODE_STA == EEPROM.read(configBase + offsetof(wificonfigarea_t, mode)))
return WiFi.macAddress(mac);
else
return WiFi.softAPmacAddress(mac);
}
uint32_t getEEPROMuint32(int start)
{
uint32_t result = 0;
for (int i=0; i<4; ++i)
{
result <<= 8;
result += EEPROM.read(start);
++start;
}
return result;
}
void setEEPROMuint32(int start, uint32_t val)
{
for (int i=0; i<4; ++i)
{
EEPROM.write(start + 3 - i, (uint8_t)val);
val >>= 8;
}
}
String getEEPROMString(int start, int len)
{
String string = "";
for (int i = start; i < + start + len; ++i)
{
uint8_t b = EEPROM.read(i);
if ((0xff == b) || (0 == b))
break;
string.concat(char(b));
}
return string;
}
void setEEPROMString(int start, int len, String string)
{
int si = 0;
for (int i = start; i < start + len; ++i)
{
char c;
if (si < string.length())
{
c = string[si];
}
else
{
c = 0;
}
EEPROM.write(i, c);
++si;
}
}
WiFiConfigUsrParameter::WiFiConfigUsrParameter(const char *id, const char *label, const char *defaultValue, int length, storeparam_cb cb)
{
_next = NULL;
_cb = cb;
_id = id;
_label = label;
_length = length;
_value = new char[length + 1];
for (int i = 0; i < length; i++)
{
_value[i] = 0;
}
if (defaultValue != NULL)
{
strncpy(_value, defaultValue, length);
}
}
const char* WiFiConfigUsrParameter::getValue()
{
return _value;
}
const char* WiFiConfigUsrParameter::getID()
{
return _id;
}
const char* WiFiConfigUsrParameter::getLabel()
{
return _label;
}
int WiFiConfigUsrParameter::getValueLength()
{
return _length;
}
void WiFiConfigUsrParameter::setNext(WiFiConfigUsrParameter *n)
{
_next = n;
}
WiFiConfigUsrParameter *WiFiConfigUsrParameter::getNext()
{
return _next;
}
void WiFiConfigUsrParameter::setNewValue(const char *newval)
{
if (0 != strcmp(_value, newval))
_cb(newval);
}
WiFiConfigUsrParameter *WiFiConfig::_searchUsrParameter(const char *name)
{
WiFiConfigUsrParameter *ptr = _params;
while (NULL != ptr)
{
if (0 == strcmp(name, ptr->getID()))
break;
ptr = ptr->getNext();
}
return ptr;
}
void WiFiConfig::addParameter(WiFiConfigUsrParameter *p)
{
p->setNext(_params);
_params = p;
}
void WiFiConfig::_handleNotFound(void)
{
// _time = millis() + (_timeout * 1000); // spocitame si novy cas, kdy budeme modul restartovat
DEBUG_MSG("Requested URI: %s\r\n", server->uri().c_str());
if (server->uri().endsWith(String(F("favicon.ico"))))
{
server->send(404, F("text/plain"), F("Err"));
}
else
{
server->sendHeader(F("Location"), String(F("http://")) + server->client().localIP().toString() + String(F("/index.htm")), true);
// server->sendHeader(F("Location"), String(F("http://")) + WiFi.softAPIP().toString() + String(F("/index.htm")), true);
server->send (302, F("text/plain"), F("Redirect"));
}
}
void WiFiConfig::_handleReset(void)
{
rsttick.reset(new(Ticker));
rsttick->once_ms(700, []()
{
ESP.restart();
});
server->send_P(200, TEXTHTML, PAGE_RESTART);
}
void WiFiConfig::_handleInfo(void)
{
String reply;
reply.reserve(3000);
reply = FPSTR(PAGE_INDEX1);
reply.concat(F("<form><table><TR><TH>System Info<TH>"));
reply.concat(F("<TR><TD>Core Version:<TD>"));
reply.concat(ESP.getCoreVersion());
reply.concat(F("<TR><TD>Flash Size:<TD>"));
reply.concat(ESP.getFlashChipRealSize() / 1024);
reply.concat(F(" kB"));
reply.concat(F("<TR><TD>Sketch Size/Free:<TD>"));
reply.concat(ESP.getSketchSize() / 1024);
reply.concat(F(" kB / "));
reply.concat(ESP.getFreeSketchSpace() / 1024);
reply.concat(F(" kB"));
reply.concat(F("<TR><TD>STA MAC:<TD>"));
uint8_t mac[] = {0, 0, 0, 0, 0, 0};
uint8_t* macread = WiFi.macAddress(mac);
char macaddress[20];
sprintf_P(macaddress, PSTR("%02x:%02x:%02x:%02x:%02x:%02x"), macread[0], macread[1], macread[2], macread[3], macread[4], macread[5]);
reply.concat(macaddress);
reply.concat(F("<TR><TD>AP MAC:<TD>"));
macread = WiFi.softAPmacAddress(mac);
sprintf_P(macaddress, PSTR("%02x:%02x:%02x:%02x:%02x:%02x"), macread[0], macread[1], macread[2], macread[3], macread[4], macread[5]);
reply.concat(macaddress);
reply.concat(F("<TR><TD>ESP Chip ID:<TD>"));
reply.concat(ESP.getChipId());
reply.concat(F("<TR><TD>Flash Chip ID:<TD>"));
reply.concat(ESP.getFlashChipId());
reply.concat(F("</table></form>"));
server->send(200, TEXTHTML, reply);
}
void WiFiConfig::_handleRoot(void)
{
String content;
content.reserve(3000);
content = FPSTR(PAGE_CAPTIVEPORTALCATCH); // 1. cast stranky
// pridame informaci o stavu pokusu o pripojeni
content.concat(F("<div class=\"vl-info\">Pokus o připojení: "));
switch (_status)
{
case STATION_IDLE:
content.concat(F("Klid"));
break;
case STATION_CONNECTING:
content.concat(F("Připojování"));
break;
case STATION_WRONG_PASSWORD:
content.concat(F("Špatné heslo"));
break;
case STATION_NO_AP_FOUND:
content.concat(F("AP nenalezen"));
break;
case STATION_CONNECT_FAIL:
content.concat(F("Připojení selhalo"));
break;
case STATION_GOT_IP:
content.concat(F("Získaná ip"));
break;
case 0xfe:
content.concat(F("Špatná EEPROM"));
break;
case 0xff:
content.concat(F("Vynucená konfigurace"));
break;
default:
content.concat(F("Neznámého"));
break;
}
content.concat(F("</div>"));
content.concat(FPSTR(PAGE_CAPTIVEPORTALCATCH2)); // 2. cast stranky (ukonceni)
server->send(200, TEXTHTML, content);
_time = millis() + (_timeout * 1000); // spocitame si novy cas, kdy budeme modul restartovat
}
void WiFiConfig::_handleDisplayAP(void)
{
String s;
String v;
String content;
_time = millis() + (360 * 1000); // spocitame si novy cas, kdy budeme modul restartovat (6 minut)
content.reserve(3000);
content = FPSTR(PAGE_INDEX1);
int n = WiFi.scanNetworks();
if (0 == n)
{
content.concat(FPSTR(PAGE_NO_SSID));
}
else
{
for (int i = 0; i < n; ++i)
{
int quality;
if (WiFi.RSSI(i) <= -100)
quality = 0;
else if (WiFi.RSSI(i) >= -50)
quality = 100;
else
quality = 2 * (WiFi.RSSI(i) + 100);
s = FPSTR(SSID_ITEM);
s.replace(F("{v}"), WiFi.SSID(i));
s.replace(F("{a}"), String(quality));
s.replace(F("{s}"), (ENC_TYPE_NONE == WiFi.encryptionType(i)) ? F("") : F("l"));
content.concat(s);
}
}
s = FPSTR(PAGE_INDEX2);
v = getEEPROMString(configBase + offsetof(wificonfigarea_t, ssid), elementSize(wificonfigarea_t, ssid));
if (v.length())
s.replace(F("{s}"), String(FPSTR(VALUE)) + v + F("'"));
else
s.replace(F("{s}"), F("placeholder='SSID'"));
v = getEEPROMString(configBase + offsetof(wificonfigarea_t, pass), elementSize(wificonfigarea_t, pass));
if (v.length())
s.replace(F("{p}"), String(FPSTR(VALUE)) + v + F("'"));
else
s.replace(F("{p}"), F("placeholder='password'"));
v = getEEPROMString(configBase + offsetof(wificonfigarea_t, devname), elementSize(wificonfigarea_t, devname));
if (v.length())
s.replace(F("{n}"), String(FPSTR(VALUE)) + v + F("'"));
else
s.replace(F("{n}"), F("placeholder='name'"));
if (EEPROM.read(configBase + offsetof(wificonfigarea_t, mode)) == WIFIMODE_AP)
s.replace(F("{a}"), FPSTR(CHECKED));
else
s.replace(F("{a}"), F(""));
if (EEPROM.read(configBase + offsetof(wificonfigarea_t, ip)) == IPCONFIG_STATIC)
s.replace(F("{c}"), FPSTR(CHECKED));
else
s.replace(F("{c}"), F(""));
s.replace(F("{i}"), IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, ipaddr))).toString());
s.replace(F("{m}"), IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, netmask))).toString());
s.replace(F("{g}"), IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, gateway))).toString());
s.replace(F("{d}"), IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, dns))).toString());
uint8_t chan = EEPROM.read(configBase + offsetof(wificonfigarea_t, apchannel));
if ((chan < 1) || (chan > 13))
chan = 1; // neplatne cislo kanalu nahradime nejnizsim
s.replace(F("{ch}"), String(chan));
content.concat(s);
// Uzivatelske parametry
if (_params)
{
content.concat(FPSTR(PAGE_PARAM_HDR));
}
WiFiConfigUsrParameter *up = _params;
while (NULL != up)
{
s = FPSTR(PAGE_PARAM);
s.replace(F("{t}"), up->getLabel());
s.replace(F("{n}"), up->getID());
s.replace(F("{l}"), String(up->getValueLength()));
s.replace(F("{v}"), up->getValue());
content.concat(s);
up = up->getNext();
}
content.concat(FPSTR(PAGE_END));
server->send(200, TEXTHTML, content);
}
// Deal with (potentially) plus-encoded ssid/pass
void WiFiConfig::_plusDecode(String &s)
{
for (int i = 0; i < s.length(); i++)
s[i] = (s[i] == '+' ? ' ' : s[i]);
}
void WiFiConfig::_handleSetAP(void)
{
uint8_t mode;
String str;
str.reserve(128);
str = server->arg(F("_s"));
if (str.length() > 0)
{
_plusDecode(str);
setEEPROMString(configBase + offsetof(wificonfigarea_t, ssid), elementSize(wificonfigarea_t, ssid), str);
str = server->arg(F("_p"));
_plusDecode(str);
setEEPROMString(configBase + offsetof(wificonfigarea_t, pass), elementSize(wificonfigarea_t, pass), str);
str = server->arg(F("_n"));
setEEPROMString(configBase + offsetof(wificonfigarea_t, devname), elementSize(wificonfigarea_t, devname), str);
str = server->arg(F("_a"));
if (str.length() > 0)
{
mode = WIFIMODE_AP; // rezim AP
str = server->arg(F("_ch")); // kanal AP
EEPROM.write(configBase + offsetof(wificonfigarea_t, apchannel), (uint8_t)str.toInt());
}
else
mode = WIFIMODE_STA; // rezim STA
EEPROM.write(configBase + offsetof(wificonfigarea_t, mode), mode);
str = server->arg(F("_st"));
if (0 == str.length())
EEPROM.write(configBase + offsetof(wificonfigarea_t, ip), IPCONFIG_DHCP); // mame DHCP dynamickou konfiguraci
else
{ // staticka ip konfigurace
IPAddress ipa;
EEPROM.write(configBase + offsetof(wificonfigarea_t, ip), IPCONFIG_STATIC);
str = server->arg(F("_i"));
ipa.fromString(str);
setEEPROMuint32(configBase + offsetof(wificonfigarea_t, ipaddr), (uint32_t) ipa);
str = server->arg(F("_m"));
ipa.fromString(str);
setEEPROMuint32(configBase + offsetof(wificonfigarea_t, netmask), (uint32_t) ipa);
str = server->arg(F("_g"));
ipa.fromString(str);
setEEPROMuint32(configBase + offsetof(wificonfigarea_t, gateway), (uint32_t) ipa);
str = server->arg(F("_d"));
ipa.fromString(str);
setEEPROMuint32(configBase + offsetof(wificonfigarea_t, dns), (uint32_t) ipa);
}
// Uzivatelske parametry
for (int i = 0; i < server->args(); i++)
{
if (!server->argName(i).startsWith(F("_"))) // vnitrni parametry WiFiConfig modulu zacinaji _, takze ty muzeme ignorovat
{
WiFiConfigUsrParameter *up = _searchUsrParameter(server->argName(i).c_str());
if (NULL != up)
up->setNewValue(server->arg(i).c_str());
}
}
EEPROM.commit(); // skutecne ulozime data
}
server->send(200, F("text/html"), FPSTR(PAGE_SAVED));
delay(2000); // cekame na odeslani dat
// nakonfigurujeme ESP dle nove nastavenych parametru
WiFi.disconnect(); // vsechno odpojime
WiFi.persistent(true); // chceme, aby si modul zapamatoval konfiguraci
String s = getEEPROMString(configBase + offsetof(wificonfigarea_t, devname), elementSize(wificonfigarea_t, devname));
strcpy(WiFiDeviceName, s.c_str());
s = getEEPROMString(configBase + offsetof(wificonfigarea_t, ssid), elementSize(wificonfigarea_t, ssid));
String pass = getEEPROMString(configBase + offsetof(wificonfigarea_t, pass), elementSize(wificonfigarea_t, pass));
switch (EEPROM.read(configBase + offsetof(wificonfigarea_t, mode)))
{
case WIFIMODE_STA:
{
DEBUG_MSG("STA mode.\r\n");
WiFi.mode(WIFI_STA); // startujeme WiFi v rezimu klienta
if (strlen(WiFiDeviceName))
WiFi.hostname(WiFiDeviceName); // nastavime jmeno zarizeni
WiFi.begin(s.c_str(), pass.c_str());
if (IPCONFIG_STATIC == EEPROM.read(configBase + offsetof(wificonfigarea_t, ip)))
{
DEBUG_MSG("Static configuration.\r\n");
WiFi.config(IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, ipaddr))), IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, gateway))),
IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, netmask))), IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, dns))));
}
wifi_station_set_auto_connect(true);
}
break;
case WIFIMODE_AP:
DEBUG_MSG("AP mode.\r\n");
WiFi.mode(WIFI_AP); // startujeme AP
if (pass.length())
// je zadane heslo do AP
WiFi.softAP(s.c_str(), pass.c_str(), EEPROM.read(configBase + offsetof(wificonfigarea_t, apchannel)));
else
// otevreny AP
WiFi.softAP(s.c_str(), NULL, EEPROM.read(configBase + offsetof(wificonfigarea_t, apchannel)));
if (IPCONFIG_STATIC == EEPROM.read(configBase + offsetof(wificonfigarea_t, ip)))
WiFi.softAPConfig(IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, ipaddr))), IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, gateway))),
IPAddress(getEEPROMuint32(configBase + offsetof(wificonfigarea_t, netmask))));
break;
default: // jakykoliv neznamy rezim (mozna zavada na EEPROM???)
DEBUG_MSG("Mode Error!!\r\n");
break;
}
delay(1000); // cekame XX sekund na ulozeni atd...
ESP.restart();
}
// Start WiFi v rezimu AP pro nastaveni modulu
wificonfigresult_t WiFiConfig::_setupAP(wificonfig_cb cb)
{
String ssid = SETUP_SSID;
WiFi.persistent(false); // chranime flash pred zbytecnymi prepisy
dnsServer.reset(new DNSServer());
server.reset(new ESP8266WebServer(80));
/* Soft AP network parameters */
IPAddress apIP(192, 168, 4, 1);
IPAddress netMsk(255, 255, 255, 0);
WiFi.disconnect(); // pro jistotu se odpojime
WiFi.mode(WIFI_AP);
WiFi.softAPConfig(apIP, apIP, netMsk);
if (ssid.endsWith(F("?")))
{
//uint8_t amac[6];
char lmac[16];
//WiFi.softAPmacAddress(amac);
//sprintf_P(lmac, PSTR("%02X%02X%02X"), amac[3], amac[4], amac[5]);
sprintf_P(lmac, PSTR("%06X"), ESP.getChipId());
ssid.replace(F("?"), String(lmac));
}
WiFi.softAP(ssid.c_str(), NULL, SETUP_CHANNEL);
delay(500); // dulezite - jinak se nevraci spravna IP adresa !!! (udajne od verze 2.3.0 uz neni nutne)
dnsServer->setErrorReplyCode(DNSReplyCode::NoError);
dnsServer->start(DNS_PORT, "*", WiFi.softAPIP()); // spustime tzv. Captive portal - vsechny DNS dotazy jsou smerovany na nasi ip adresu
if (cb)
cb(WCS_CONFIGSTART); // signalizujeme start konfiguracniho serveru
// Nastavime handlery weboveho serveru pro konfiguraci
server->onNotFound(std::bind(&WiFiConfig::_handleNotFound, this));
server->on(F("/config"), std::bind(&WiFiConfig::_handleDisplayAP, this));
server->on(F("/s"), std::bind(&WiFiConfig::_handleSetAP, this));
server->on(F("/r"), std::bind(&WiFiConfig::_handleReset, this));
server->on(F("/i"), std::bind(&WiFiConfig::_handleInfo, this));
server->on(F("/index.htm"), std::bind(&WiFiConfig::_handleRoot, this));
server->begin(); // startujeme webovy server
while (1)
{
server->handleClient(); // osetrujeme praci serveru
if (cb)
cb(WCS_CONFIGWAIT); // volame uzivatelsky callback (napr. signalizace)
dnsServer->processNextRequest();
yield(); // procesy uvnitr systemu ESP potrebuji take svuj cas
if (_timeout)
{
if (millis() > _time)
{
DEBUG_MSG("AP timeout\r\n");
if (cb)
cb(WCS_CONFIGTIMEOUT); // signalizujeme timeout
break; // ukoncime cekani a vracime se
}
}
}
// tady by asi melo byt zastaveni weboveho a dns serveru...
dnsServer->stop();
server->stop();
return WCR_TIMEOUT; // nepripojeno, vyprsel timeout konfiguracniho AP
}
// Testovani, zda se modul pripojil k AP
bool WiFiConfig::_testWifi(wificonfig_cb cb)
{
uint32_t startt = millis();
DEBUG_MSG("Trying to connect.\r\n");
while ((millis() - startt) < WIFI_STA_CONNECT_TIMEOUT)
{
if (WL_CONNECTED == WiFi.status())
{
DEBUG_MSG("Connected...\r\n");
if (cb)
cb(WCS_CONNECTED);
return true; // jsme pripojeni
}
yield();
if (cb)
cb(WCS_CONNECTING); // signalizujeme pokracujici pokus o spojeni
}
DEBUG_MSG("Not connected!\r\n");
_status = wifi_station_get_connect_status();
return false; // pripojeni se nezdarilo
}
wificonfigresult_t WiFiConfig::begin(int configarea, uint8_t forceConfigure, wificonfig_cb cb)
{
wificonfigresult_t result = WCR_OK; // predpokladame, ze se pripojeni podari
DEBUG_MSG("\r\n\r\n"); // oddeleni vypisu
configBase = configarea; // pocatek konfigurace v EEPROM
if (0 == forceConfigure)
{
DEBUG_MSG("Force config.\r\n");
_status = 0xff;
result = _setupAP(cb);
}
else
{
if (EEPROM.read(configBase + offsetof(wificonfigarea_t, mode)) != WiFi.getMode())
{ // neshoduje se rezim - musime spustit konfiguracni AP (poskozena konfigurace)
DEBUG_MSG("Wrong config\r\n");
_status = 0xfe;
result = _setupAP(cb);
}
else
{
String s = getEEPROMString(configBase + offsetof(wificonfigarea_t, devname), elementSize(wificonfigarea_t, devname));
strcpy(WiFiDeviceName, s.c_str());
switch (EEPROM.read(configBase + offsetof(wificonfigarea_t, mode)))
{
case WIFIMODE_STA:
{
WiFi.hostname(WiFiDeviceName); // nastavime jmeno zarizeni
DEBUG_MSG("STA mode.\r\n");
if (WC_DONT_RUN_CONFIGAP == _timeout)
result = WCR_CONFIGAP_NOT_STARTED; // nemame spoustet konfiguracni AP - vracime se hned
else
{
if (cb)
cb(WCS_CONNECTSTART); // signalizujeme zacatek pokusu o pripojeni
if (!_testWifi(cb))
{
result = _setupAP(cb); // modul se nepripojil - startujeme AP rezim
}
}
}
break;
case WIFIMODE_AP:
DEBUG_MSG("AP mode.\r\n");
if (cb)
cb(WCS_CONNECTSTART); // signalizujeme zacatek pokusu o pripojeni (zde se nic jineho stejne nestane...)
break;
}
}
}
return result; // mame vyreseno
}
wificonfigresult_t WiFiConfig::begin(int configarea, uint8_t forceConfigure, int timeout, wificonfig_cb cb = NULL)
{
if (forceConfigure)
{ // pouze pokud nemame vynucenou konfiguraci merime cas - to nam umozni dostat se ze spatne zadaneho timeoutu, ktery se neda zvladnout
if ((timeout > 0) && (40 > timeout))
timeout = 40; // timeout musi byt minimalne 40 sekund
_timeout = timeout;
if (_timeout > 0)
_time = millis() + (_timeout * 1000); // spocitame si novy cas, kdy budeme modul restartovat
}
else
_timeout = 0; // pri vynucene konfiguraci se parametr timeout neuplatni
return begin(configarea, forceConfigure, cb); // spustime WiFi
}
// EOF
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