mirror of
https://github.com/alexhopeoconnor/WiFiManager.git
synced 2026-10-04 02:48:13 +10:00
first commit
This commit is contained in:
Alex Tudorache
+301
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/**************************************************************
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* WiFiManager is a library for the ESP8266/Arduino platform
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* (https://github.com/esp8266/Arduino) to enable easy
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* configuration and reconfiguration of WiFi credentials and
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* store them in EEPROM.
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* inspired by http://www.esp8266.com/viewtopic.php?f=29&t=2520
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* https://github.com/chriscook8/esp-arduino-apboot
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* Built by AlexT https://github.com/tzapu
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* Licensed under MIT license
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**************************************************************/
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#include "WiFiManager.h"
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MDNSResponder mdns;
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WiFiServer server(80);
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WiFiManager::WiFiManager(char *apName)
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{
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_apName = apName;
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}
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void WiFiManager::begin() {
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begin(0);
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}
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void WiFiManager::begin(int eepromStart) {
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_eepromStart = eepromStart;
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EEPROM.begin(512);
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}
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boolean WiFiManager::autoConnect() {
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autoConnect(0);
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}
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boolean WiFiManager::autoConnect(int eepromStart) {
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begin(eepromStart);
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delay(10);
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Serial.println();
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Serial.println("AutoConnect");
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// read eeprom for ssid and pass
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String ssid = getSSID();
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String pass = getPassword();
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if ( ssid.length() > 1 ) {
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Serial.println("Waiting for Wifi to connect");
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WiFi.mode(WIFI_STA);
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WiFi.begin(ssid.c_str(), pass.c_str());
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if ( hasConnected() ) {
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return true;
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}
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}
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//oled_log("\nno network");
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beginConfigMode();
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return false;
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}
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String WiFiManager::getSSID() {
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if(_ssid == "") {
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Serial.println("Reading EEPROM SSID");
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_ssid = getEEPROMString(0, 32);
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Serial.print("SSID: ");
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Serial.println(_ssid);
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}
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return _ssid;
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}
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String WiFiManager::getPassword() {
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if(_pass == "") {
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Serial.println("Reading EEPROM Password");
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_pass = getEEPROMString(32, 64);
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Serial.print("Password: ");
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Serial.println(_pass);
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}
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return _pass;
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}
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String WiFiManager::getEEPROMString(int start, int len) {
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String string = "";
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for (int i = _eepromStart + start; i < _eepromStart + start + len; i++) {
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//Serial.println(i);
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string += char(EEPROM.read(i));
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}
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return string;
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}
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void WiFiManager::setEEPROMString(int start, int len, String string) {
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int si = 0;
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for (int i = _eepromStart + start; i < _eepromStart + start + len; i++) {
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char c;
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if(si < string.length()) {
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c = string[si];
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Serial.print("Wrote: ");
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Serial.println(c);
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} else {
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c = 0;
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}
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EEPROM.write(i, c);
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si++;
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}
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}
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boolean WiFiManager::hasConnected(void) {
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int c = 0;
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while ( c < 20 ) {
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if (WiFi.status() == WL_CONNECTED) {
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return true;
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}
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delay(500);
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Serial.print(".");
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c++;
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}
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Serial.println("");
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Serial.println("Could not connect to WiFi");
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return false;
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}
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void WiFiManager::startWebConfig() {
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println(WiFi.localIP());
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Serial.println(WiFi.softAPIP());
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if (!mdns.begin(_apName, WiFi.localIP())) {
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Serial.println("Error setting up MDNS responder!");
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while(1) {
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delay(1000);
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}
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}
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Serial.println("mDNS responder started");
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// Start the server
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server.begin();
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Serial.println("Server started");
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while(serverLoop() == WM_WAIT) {
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//looping
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}
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}
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void WiFiManager::beginConfigMode(void) {
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WiFi.softAP(_apName);
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Serial.println("Started Soft Access Point");
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startWebConfig();
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Serial.println("Setup done");
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delay(10000);
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ESP.reset();
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}
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int WiFiManager::serverLoop()
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{
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// Check for any mDNS queries and send responses
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mdns.update();
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// Check if a client has connected
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WiFiClient client = server.available();
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if (!client) {
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return(WM_WAIT);
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}
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Serial.println("New client");
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// Wait for data from client to become available
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while(client.connected() && !client.available()){
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delay(1);
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}
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// Read the first line of HTTP request
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String req = client.readStringUntil('\r');
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// First line of HTTP request looks like "GET /path HTTP/1.1"
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// Retrieve the "/path" part by finding the spaces
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int addr_start = req.indexOf(' ');
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int addr_end = req.indexOf(' ', addr_start + 1);
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if (addr_start == -1 || addr_end == -1) {
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Serial.print("Invalid request: ");
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Serial.println(req);
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return(WM_WAIT);
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}
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req = req.substring(addr_start + 1, addr_end);
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Serial.print("Request: ");
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Serial.println(req);
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client.flush();
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String s;
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if (req == "/")
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{
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s = HTTP_200;
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String head = HTTP_HEAD;
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head.replace("{v}", "Config ESP");
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s += head;
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s += HTTP_SCRIPT;
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s += HTTP_STYLE;
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s += HTTP_HEAD_END;
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int n = WiFi.scanNetworks();
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Serial.println("scan done");
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if (n == 0) {
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Serial.println("no networks found");
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s += "<div>No networks found. Refresh to scan again.</div>";
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}
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else {
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for (int i = 0; i < n; ++i)
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{
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Serial.print(WiFi.SSID(i));
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Serial.print(" ");
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Serial.println(WiFi.RSSI(i));
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String item = HTTP_ITEM;
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item.replace("{v}", WiFi.SSID(i));
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s += item;
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delay(10);
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}
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}
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s += HTTP_FORM;
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s += HTTP_END;
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Serial.println("Sending config page");
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}
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else if ( req.startsWith("/s") ) {
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String qssid;
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qssid = urldecode(req.substring(8,req.indexOf('&')).c_str());
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Serial.println(qssid);
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Serial.println("");
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String qpass;
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qpass = urldecode(req.substring(req.lastIndexOf('=')+1).c_str());
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Serial.println(qpass);
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Serial.println("");
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setEEPROMString(0, 32, qssid);
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setEEPROMString(32, 64, qpass);
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EEPROM.commit();
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s = HTTP_200;
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String head = HTTP_HEAD;
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head.replace("{v}", "Saved config");
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s += HTTP_STYLE;
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s += HTTP_HEAD_END;
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s += "saved to eeprom...<br/>resetting in 10 seconds";
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s += HTTP_END;
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client.print(s);
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client.flush();
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Serial.println("Saved WiFiConfig...restarting.");
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return WM_DONE;
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}
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else
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{
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s = HTTP_404;
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Serial.println("Sending 404");
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}
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client.print(s);
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Serial.println("Done with client");
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return(WM_WAIT);
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}
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String WiFiManager::urldecode(const char *src)
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{
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String decoded = "";
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char a, b;
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while (*src) {
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if ((*src == '%') &&
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((a = src[1]) && (b = src[2])) &&
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(isxdigit(a) && isxdigit(b))) {
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if (a >= 'a')
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a -= 'a'-'A';
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if (a >= 'A')
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a -= ('A' - 10);
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else
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a -= '0';
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if (b >= 'a')
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b -= 'a'-'A';
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if (b >= 'A')
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b -= ('A' - 10);
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else
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b -= '0';
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decoded += char(16*a+b);
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src+=3;
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}
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else {
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decoded += *src;
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*src++;
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}
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}
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decoded += '\0';
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Serial.print("source ");
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Serial.println(decoded);
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return decoded;
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}
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@@ -0,0 +1,63 @@
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/**************************************************************
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* WiFiManager is a library for the ESP8266/Arduino platform
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* (https://github.com/esp8266/Arduino) to enable easy
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* configuration and reconfiguration of WiFi credentials and
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* store them in EEPROM.
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* inspired by http://www.esp8266.com/viewtopic.php?f=29&t=2520
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* https://github.com/chriscook8/esp-arduino-apboot
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* Built by AlexT https://github.com/tzapu
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* Licensed under MIT license
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**************************************************************/
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#ifndef WiFiManager_h
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#define WiFiManager_h
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#include <ESP8266WiFi.h>
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#include <EEPROM.h>
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#include <ESP8266mDNS.h>
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#include <WiFiClient.h>
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class WiFiManager
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{
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public:
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WiFiManager(char *apName);
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void begin();
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void begin(int eepromStart);
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boolean hasConnected();
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boolean autoConnect();
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boolean autoConnect(int eepromStart);
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void beginConfigMode(void);
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void startWebConfig();
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String getSSID();
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String getPassword();
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String urldecode(const char*);
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private:
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const int WM_DONE = 0;
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const int WM_WAIT = 10;
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const String HTTP_404 = "HTTP/1.1 404 Not Found\r\n\r\n";
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const String HTTP_200 = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n";
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const String HTTP_HEAD = "<!DOCTYPE html><html lang=\"en\"><head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"/><title>{v}</title>";
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const String HTTP_STYLE = "<style>div,input {margin-bottom: 5px;}body{width:200px;display:block;margin-left:auto;margin-right:auto;}</style>";
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const String HTTP_SCRIPT = "<script>function c(l){document.getElementById('s').value=l.innerText||l.textContent;document.getElementById('p').focus();}</script>";
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const String HTTP_HEAD_END = "</head><body>";
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const String HTTP_ITEM = "<div><a href='#' onclick='c(this)'>{v}</a></div>";
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const String HTTP_FORM = "<form method='get' action='s'><input id='s' name='ssid' length=32 placeholder='SSID'><input id='p' name='pass' length=64 placeholder='password'><br/><input type='submit'></form>";
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const String HTTP_END = "</body></html>";
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int _eepromStart;
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const char* _apName = "no-net";
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String _ssid = "";
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String _pass = "";
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String getEEPROMString(int start, int len);
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void setEEPROMString(int start, int len, String string);
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int serverLoop();
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};
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#endif
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