upstream sync
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#include "WiFiConnect.h"
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#include <SPIFFS.h>
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#include "constants.h"
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// ---- CSS for the captive portal ----
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static const char TPL_STYLE[] PROGMEM =
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"<style>"
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"*{margin:0;padding:0;box-sizing:border-box}"
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"body{font-family:-apple-system,'Segoe UI',system-ui,sans-serif;background:#202228;color:#fff;min-height:100vh}"
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".w{max-width:440px;margin:0 auto;padding:20px 16px}"
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".logo{display:block;margin:0 auto 8px;max-width:160px;height:auto}"
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"h1{color:#5bd6ab;font-size:.92em;font-weight:600;text-transform:uppercase;letter-spacing:3px;"
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"text-align:center;padding-bottom:12px;margin-bottom:18px;border-bottom:1px solid rgba(91,214,171,.15)}"
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".msg{background:rgba(46,80,73,.3);border:1px solid rgba(60,127,106,.2);border-radius:12px;"
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"padding:14px 18px;font-size:.88em;color:#a0a8b0;line-height:1.6;margin-bottom:20px;text-align:center}"
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".cd{background:rgba(46,80,73,.12);border:1px solid rgba(60,127,106,.18);border-radius:14px;"
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"padding:16px;margin-bottom:14px}"
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".cd h2{font-size:.7em;color:#4db691;text-transform:uppercase;letter-spacing:1.5px;"
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"margin-bottom:12px;font-weight:600;padding-left:10px;border-left:3px solid #4db691}"
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"button,input[type=submit]{display:block;width:100%;padding:14px;background:#4db691;"
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"color:#1a1c20;border:0;border-radius:12px;font-size:.92em;font-weight:600;"
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"font-family:inherit;text-transform:uppercase;letter-spacing:.5px;cursor:pointer;"
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"margin-bottom:8px;transition:background .2s}"
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"button:hover{background:#5bd6ab}"
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".alt{background:0 0;color:#8090a0;border:1px solid rgba(60,127,106,.3);"
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"text-transform:none;font-weight:400;font-size:.82em;letter-spacing:0;padding:10px}"
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".alt:hover{background:rgba(46,80,73,.2);color:#c0c8d0;border-color:#3c7f6a}"
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"label{display:block;font-size:.7em;color:#6a7280;text-transform:uppercase;"
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"letter-spacing:1px;margin:8px 0 4px;font-weight:500}"
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"input[type=text],input[type=password]{display:block;width:100%;padding:11px 14px;"
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"background:rgba(20,22,26,.5);border:1px solid rgba(60,127,106,.22);border-radius:10px;"
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"color:#e0e4e8;font-size:.9em;font-family:inherit;margin-bottom:10px;outline:0;"
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"transition:border .2s;-webkit-appearance:none}"
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"input[type=text]:focus,input[type=password]:focus{border-color:#5bd6ab}"
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"input::placeholder{color:#3a4250}"
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".n{background:rgba(20,22,26,.35);border:1px solid rgba(60,127,106,.12);"
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"border-radius:10px;padding:10px 12px;margin-bottom:5px;cursor:pointer;"
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"display:flex;align-items:center;gap:10px;transition:border .2s}"
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".n:hover{border-color:#3c7f6a}.n:active{border-color:#5bd6ab}"
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".n span:first-child{color:#d0d4d8;flex:1;overflow:hidden;text-overflow:ellipsis;"
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"white-space:nowrap;font-size:.88em}"
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".q{display:flex;align-items:center;gap:5px;font-size:.72em;color:#505868;"
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"font-family:ui-monospace,monospace;white-space:nowrap}"
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".sig{display:flex;align-items:flex-end;gap:1px;height:12px}"
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".sig i{display:block;width:3px;background:#1a2a24;border-radius:1px}"
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".sig i:nth-child(1){height:3px}.sig i:nth-child(2){height:6px}"
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".sig i:nth-child(3){height:9px}.sig i:nth-child(4){height:12px}"
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".s1 i:nth-child(1){background:#f85149}"
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".s2 i:nth-child(-n+2){background:#e8a838}"
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".s3 i:nth-child(-n+3){background:#4db691}"
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".s4 i{background:#5bd6ab}"
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".lk{font-size:.55em;color:#505868;margin-left:1px}.lk::after{content:'\\1F512'}"
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".ok,.fail{text-align:center;padding:18px;border-radius:14px;margin-top:16px;"
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"display:none;line-height:1.6}"
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".ok{background:rgba(46,80,73,.3);border:1px solid rgba(60,127,106,.2);color:#5bd6ab}"
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".fail{background:rgba(74,32,32,.3);border:1px solid rgba(106,48,48,.2);color:#f85149}"
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".fail a{color:#f85149}"
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".ld::after{content:'';display:inline-block;width:22px;height:22px;"
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"border:2px solid rgba(60,127,106,.2);border-top-color:#5bd6ab;"
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"border-radius:50%;animation:r .7s linear infinite}"
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"@keyframes r{to{transform:rotate(360deg)}}"
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".ldw{text-align:center;padding:24px 0}"
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".pt{color:#6a7280;font-size:.8em;margin:10px 0 2px;padding-top:8px;"
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"border-top:1px solid rgba(60,127,106,.1)}"
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".pw{position:relative}"
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".pw input{padding-right:44px}"
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".pw button{position:absolute;right:3px;top:3px;width:36px;height:calc(100% - 16px);"
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"background:rgba(46,80,73,.3);border:0;border-radius:8px;padding:0;margin:0;"
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"color:#506070;cursor:pointer;display:flex;align-items:center;justify-content:center;"
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"text-transform:none;letter-spacing:0;font-size:.8em}"
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".pw button:hover{color:#5bd6ab;background:rgba(46,80,73,.5)}"
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".pw svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;"
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"stroke-linecap:round;stroke-linejoin:round}"
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".hn{display:flex;align-items:center;gap:8px;font-size:.8em;color:#506070;"
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"margin:0 0 12px;cursor:pointer;font-weight:400;text-transform:none;letter-spacing:0}"
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".hn input{width:auto;margin:0;accent-color:#4db691;-webkit-appearance:auto;appearance:auto}"
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"</style>";
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// ---- JavaScript for the WiFi configuration page (AJAX scan, password toggle, hidden network) ----
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static const char TPL_WIFI_JS[] PROGMEM =
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"function scan(){"
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"var nl=document.getElementById('nl');"
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"nl.innerHTML='<div class=\"ldw\"><span class=\"ld\"></span></div>';"
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"var x=new XMLHttpRequest;"
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"x.onload=function(){"
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"try{var d=JSON.parse(x.responseText);var h='';"
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"for(var i=0;i<d.n.length;i++){var n=d.n[i];"
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"var sl=n.r<26?'s1':n.r<51?'s2':n.r<76?'s3':'s4';"
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"h+='<div class=\"n\" onclick=\"sel(this)\"><span>'+esc(n.s)+'</span>'"
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"+'<span class=\"q\"><span class=\"sig '+sl+'\"><i></i><i></i><i></i><i></i></span>'"
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"+(n.e?'<span class=\"lk\"></span>':'')+'</span></div>';}"
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"nl.innerHTML=h||'<div class=\"msg\">'+T.nn+'</div>';"
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"}catch(e){nl.innerHTML='<div class=\"msg\">'+T.nn+'</div>';}};"
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"x.onerror=function(){nl.innerHTML='<div class=\"msg\">'+T.nn+'</div>';};"
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"x.open('GET','/scan');x.send();}"
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"function esc(s){var d=document.createElement('div');"
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"d.appendChild(document.createTextNode(s));return d.innerHTML;}"
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"function sel(el){"
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"var s=el.querySelector('span').textContent;"
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"document.getElementById('s').value=s;"
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"document.getElementById('hn').checked=false;"
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"document.getElementById('p').focus();}"
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"function togglePw(){"
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"var p=document.getElementById('p');"
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"p.type=p.type==='password'?'text':'password';}"
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"function toggleHn(){"
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"var c=document.getElementById('hn').checked;"
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"var s=document.getElementById('s');"
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"if(c){s.value='';s.focus();}}"
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"window.addEventListener('load',scan);";
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// ---- WiFiConnectParam implementation ----
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WiFiConnectParam::WiFiConnectParam(const char *custom) {
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_id = NULL;
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_placeholder = NULL;
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_length = 0;
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_value = NULL;
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_customHTML = custom;
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}
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WiFiConnectParam::WiFiConnectParam(const char *id, const char *placeholder, const char *defaultValue, int length) {
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init(id, placeholder, defaultValue, length, "");
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}
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void WiFiConnectParam::init(const char *id, const char *placeholder, const char *defaultValue, int length, const char *custom) {
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_id = id;
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_placeholder = placeholder;
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_length = length;
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_value = NULL;
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_customHTML = custom;
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setValue(defaultValue);
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}
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void WiFiConnectParam::setValue(const char *newValue) {
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if (_length > 0) {
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delete[] _value;
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_value = new char[_length + 1];
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memset(_value, 0, _length + 1);
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if (newValue != NULL) strncpy(_value, newValue, _length);
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}
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}
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const char* WiFiConnectParam::getValue() {
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return _value;
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}
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const char* WiFiConnectParam::getID() {
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return _id;
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}
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const char* WiFiConnectParam::getPlaceholder() {
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return _placeholder;
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}
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int WiFiConnectParam::getValueLength() {
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return _length;
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}
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const char* WiFiConnectParam::getCustomHTML() {
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return _customHTML;
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}
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// ---- WiFiConnect implementation ----
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WiFiConnect::WiFiConnect() {
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_apName[0] = '\0';
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}
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void WiFiConnect::setAPName() {
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String ssid = "TEF_" + String((uint32_t)ESP.getEfuseMac());
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strcpy(_apName, ssid.c_str());
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}
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void WiFiConnect::addParameter(WiFiConnectParam *p) {
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if (_paramsCount < WiFiConnect_MAX_PARAMS) {
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_params[_paramsCount] = p;
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_paramsCount++;
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}
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}
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boolean WiFiConnect::autoConnect() {
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return autoConnect(NULL, NULL, WIFI_STA);
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}
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boolean WiFiConnect::autoConnect(char const *ssidName, char const *ssidPassword, WiFiMode_t acWiFiMode) {
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WiFi.mode(acWiFiMode);
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if (WiFi.status() == WL_CONNECTED) {
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return true;
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}
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int c = 0;
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while (c < RETRY_ATTEMPTS) {
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long ms = millis();
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if (ssidName == NULL || strlen(ssidName) == 0) {
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wifi_config_t conf;
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esp_wifi_get_config(WIFI_IF_STA, &conf);
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String stored_ssid = String(reinterpret_cast<const char*>(conf.sta.ssid));
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if (stored_ssid == "") {
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return false;
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}
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WiFi.begin();
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} else {
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WiFi.begin(ssidName, ssidPassword);
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}
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while (millis() - (unsigned long)ms < ((unsigned int)CONNECTION_TIMEOUT_SECS * 1000)) {
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int ws = WiFi.status();
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if (ws == WL_CONNECTED) {
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delay(500);
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return true;
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} else if (ws == WL_CONNECT_FAILED) {
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delay(500);
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} else {
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delay(200);
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yield();
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}
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}
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c++;
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}
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return false;
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}
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boolean WiFiConnect::startConfigurationPortal() {
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delay(50);
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if (WiFi.status() != WL_CONNECTED) {
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WiFi.mode(WIFI_AP);
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} else {
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WiFi.mode(WIFI_AP_STA);
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}
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dnsServer.reset(new DNSServer());
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server.reset(new WebServer(80));
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setAPName();
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WiFi.softAP(_apName);
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delay(500);
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/* Setup the DNS server redirecting all domains to the AP IP */
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dnsServer->setErrorReplyCode(DNSReplyCode::NoError);
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dnsServer->start(53, "*", WiFi.softAPIP());
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/* Setup web pages: root, wifi config, scan API, logo, and not found */
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server->on("/", std::bind(&WiFiConnect::handleRoot, this));
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server->on("/wifi", std::bind(&WiFiConnect::handleWifi, this));
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server->on("/scan", std::bind(&WiFiConnect::handleScan, this));
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server->on("/wifisave", std::bind(&WiFiConnect::handleWifiSave, this));
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server->on("/logo.png", std::bind(&WiFiConnect::handleLogo, this));
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/* Captive portal detection endpoints — redirect to root to trigger popup */
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server->on("/fwlink", std::bind(&WiFiConnect::handleRoot, this)); // Windows
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server->on("/redirect", std::bind(&WiFiConnect::handleRoot, this)); // Windows 10+
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server->on("/hotspot-detect.html", std::bind(&WiFiConnect::handleRoot, this)); // Apple iOS/macOS
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server->on("/library/test/success.html", std::bind(&WiFiConnect::handleRoot, this)); // Apple legacy
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server->on("/generate_204", std::bind(&WiFiConnect::handleRoot, this)); // Android
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server->on("/gen_204", std::bind(&WiFiConnect::handleRoot, this)); // Android alt
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server->on("/connecttest.txt", std::bind(&WiFiConnect::handleRoot, this)); // Windows 11
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server->on("/ncsi.txt", std::bind(&WiFiConnect::handleRoot, this)); // Windows NCSI
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server->onNotFound(std::bind(&WiFiConnect::handleNotFound, this));
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server->begin();
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_readyToConnect = false;
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while (true) {
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dnsServer->processNextRequest();
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server->handleClient();
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if (_readyToConnect) {
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_readyToConnect = false;
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if (autoConnect(_ssid.c_str(), _password.c_str(), WIFI_AP_STA)) {
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WiFi.mode(WIFI_STA);
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delay(500);
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break;
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}
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}
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yield();
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}
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server->close();
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server.reset();
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dnsServer.reset();
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return (WiFi.status() == WL_CONNECTED);
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}
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// ---- Page handlers ----
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void WiFiConnect::handleRoot() {
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if (captivePortal()) return;
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String page = F("<!DOCTYPE html><html lang='en'><head>"
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"<meta charset='utf-8'>"
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"<meta name='viewport' content='width=device-width,initial-scale=1,user-scalable=no'>"
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"<title>");
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page += textUI(311);
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page += F("</title>");
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page += FPSTR(TPL_STYLE);
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page += F("</head><body><div class='w'>"
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"<img class='logo' src='/logo.png' alt='FMDX'><h1>");
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page += _apName;
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page += F("</h1><div class='msg'>");
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page += textUI(297);
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page += F("</div><form action='/wifi' method='get'><button>");
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page += textUI(298);
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page += F("</button></form></div></body></html>");
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server->sendHeader("Content-Length", String(page.length()));
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server->send(200, "text/html", page);
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}
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void WiFiConnect::handleWifi() {
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String page = F("<!DOCTYPE html><html lang='en'><head>"
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"<meta charset='utf-8'>"
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"<meta name='viewport' content='width=device-width,initial-scale=1,user-scalable=no'>"
|
||||
"<title>");
|
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page += textUI(312);
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||||
page += F("</title>");
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page += FPSTR(TPL_STYLE);
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page += F("</head><body><div class='w'>"
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"<img class='logo' src='/logo.png' alt='FMDX'><h1>");
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page += _apName;
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page += F("</h1>");
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// ---- Networks card ----
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page += F("<div class='cd'><h2>");
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page += textUI(298);
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page += F("</h2><div id='nl'><div class='ldw'><span class='ld'></span></div></div>"
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"<button class='alt' onclick='scan()'>");
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page += textUI(305);
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page += F("</button></div>");
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// ---- Connection form card ----
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page += F("<div class='cd'><h2>");
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page += textUI(304);
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page += F("</h2><form method='post' action='wifisave'>");
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// Hidden network toggle
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page += F("<label class='hn'><input type='checkbox' id='hn' onchange='toggleHn()'> ");
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page += textUI(299);
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page += F("</label>");
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// SSID field
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page += F("<label>");
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||||
page += textUI(300);
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||||
page += F("</label><input type='text' id='s' name='s' maxlength='32' placeholder='");
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||||
page += textUI(301);
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page += F("'>");
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||||
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// Password field with SVG eye toggle
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page += F("<label>");
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page += textUI(302);
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page += F("</label><div class='pw'><input type='password' id='p' name='p' maxlength='64' placeholder='");
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page += textUI(303);
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page += F("'><button type='button' onclick='togglePw()'>"
|
||||
"<svg viewBox='0 0 24 24'><path d='M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z'/>"
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||||
"<circle cx='12' cy='12' r='3'/></svg></button></div>");
|
||||
|
||||
// Custom parameters
|
||||
for (int i = 0; i < _paramsCount; i++) {
|
||||
if (_params[i] == NULL) break;
|
||||
|
||||
if (_params[i]->getID() != NULL) {
|
||||
char parLength[4];
|
||||
snprintf(parLength, 4, "%d", _params[i]->getValueLength());
|
||||
page += F("<input type='text' id='");
|
||||
page += _params[i]->getID();
|
||||
page += F("' name='");
|
||||
page += _params[i]->getID();
|
||||
page += F("' maxlength=");
|
||||
page += parLength;
|
||||
page += F(" placeholder='");
|
||||
page += _params[i]->getPlaceholder();
|
||||
page += F("' value='");
|
||||
page += _params[i]->getValue();
|
||||
page += F("' ");
|
||||
page += _params[i]->getCustomHTML();
|
||||
page += F(">");
|
||||
} else {
|
||||
page += F("<p class='pt'>");
|
||||
page += _params[i]->getCustomHTML();
|
||||
page += F("</p>");
|
||||
}
|
||||
}
|
||||
|
||||
// Submit button
|
||||
page += F("<button type='submit'>");
|
||||
page += textUI(304);
|
||||
page += F("</button></form></div>");
|
||||
|
||||
// JavaScript: inject translated text, then functions
|
||||
String nnText = textUI(313);
|
||||
nnText.replace("'", "\\'");
|
||||
page += F("<script>var T={nn:'");
|
||||
page += nnText;
|
||||
page += F("'};");
|
||||
page += FPSTR(TPL_WIFI_JS);
|
||||
page += F("</script></div></body></html>");
|
||||
|
||||
server->sendHeader("Content-Length", String(page.length()));
|
||||
server->send(200, "text/html", page);
|
||||
}
|
||||
|
||||
void WiFiConnect::handleScan() {
|
||||
int n = WiFi.scanNetworks();
|
||||
|
||||
String json = F("{\"n\":[");
|
||||
|
||||
if (n > 0) {
|
||||
// Sort by RSSI
|
||||
int indices[n];
|
||||
for (int i = 0; i < n; i++) indices[i] = i;
|
||||
for (int i = 0; i < n; i++) {
|
||||
for (int j = i + 1; j < n; j++) {
|
||||
if (WiFi.RSSI(indices[j]) > WiFi.RSSI(indices[i])) {
|
||||
std::swap(indices[i], indices[j]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Remove duplicates (must be RSSI sorted)
|
||||
for (int i = 0; i < n; i++) {
|
||||
if (indices[i] == -1) continue;
|
||||
String cssid = WiFi.SSID(indices[i]);
|
||||
for (int j = i + 1; j < n; j++) {
|
||||
if (cssid == WiFi.SSID(indices[j])) indices[j] = -1;
|
||||
}
|
||||
}
|
||||
|
||||
bool first = true;
|
||||
for (int i = 0; i < n; i++) {
|
||||
if (indices[i] == -1) continue;
|
||||
int quality = getRSSIasQuality(WiFi.RSSI(indices[i]));
|
||||
if (quality < MINIMUM_QUALITY) continue;
|
||||
|
||||
if (!first) json += ',';
|
||||
first = false;
|
||||
|
||||
// Escape SSID for JSON
|
||||
String ssid = WiFi.SSID(indices[i]);
|
||||
ssid.replace("\\", "\\\\");
|
||||
ssid.replace("\"", "\\\"");
|
||||
|
||||
json += F("{\"s\":\"");
|
||||
json += ssid;
|
||||
json += F("\",\"r\":");
|
||||
json += String(quality);
|
||||
json += F(",\"e\":");
|
||||
json += (WiFi.encryptionType(indices[i]) != WIFI_AUTH_OPEN) ? '1' : '0';
|
||||
json += '}';
|
||||
}
|
||||
}
|
||||
|
||||
json += F("]}");
|
||||
server->send(200, "application/json", json);
|
||||
}
|
||||
|
||||
void WiFiConnect::handleWifiSave() {
|
||||
_ssid = server->arg("s").c_str();
|
||||
_ssid.trim();
|
||||
_password = server->arg("p").c_str();
|
||||
_password.trim();
|
||||
|
||||
// Read custom parameters from form
|
||||
for (int i = 0; i < _paramsCount; i++) {
|
||||
if (_params[i] == NULL || _params[i]->getID() == NULL) continue;
|
||||
String value = server->arg(_params[i]->getID()).c_str();
|
||||
value.toCharArray(_params[i]->_value, _params[i]->_length);
|
||||
}
|
||||
|
||||
String page = F("<!DOCTYPE html><html lang='en'><head>"
|
||||
"<meta charset='utf-8'>"
|
||||
"<meta name='viewport' content='width=device-width,initial-scale=1,user-scalable=no'>"
|
||||
"<title>");
|
||||
page += textUI(314);
|
||||
page += F("</title>");
|
||||
page += FPSTR(TPL_STYLE);
|
||||
page += F("</head><body><div class='w'>"
|
||||
"<img class='logo' src='/logo.png' alt='FMDX'><h1>");
|
||||
page += _apName;
|
||||
page += F("</h1><div class='cd'>");
|
||||
|
||||
// Connecting spinner
|
||||
page += F("<div id='sp' style='text-align:center;padding:20px 0'>"
|
||||
"<div class='ld'></div>"
|
||||
"<p style='margin-top:14px;color:#ddd'>");
|
||||
page += textUI(306);
|
||||
page += F(" <strong style='color:#5bd6ab'>");
|
||||
page += _ssid;
|
||||
page += F("</strong> ...</p></div>");
|
||||
|
||||
// Polling script: polls /foo every 3s; if AP responds → fail, if 20 timeouts → success
|
||||
page += F("<script>"
|
||||
"var a=0,t=setInterval(function(){"
|
||||
"if(a>20){clearInterval(t);document.getElementById('sp').style.display='none';"
|
||||
"document.getElementById('ok').style.display='block';return}"
|
||||
"var x=new XMLHttpRequest;"
|
||||
"x.onload=function(){clearInterval(t);document.getElementById('sp').style.display='none';"
|
||||
"document.getElementById('fl').style.display='block'};"
|
||||
"x.ontimeout=function(){};"
|
||||
"x.open('GET','/foo');x.timeout=1e3;x.send(null);a++},3e3);"
|
||||
"</script>");
|
||||
|
||||
// Success message
|
||||
page += F("<div class='ok' id='ok'>");
|
||||
page += textUI(307);
|
||||
page += F(" <strong>");
|
||||
page += _ssid;
|
||||
page += F("</strong>!<br>");
|
||||
page += textUI(308);
|
||||
page += F("</div>");
|
||||
|
||||
// Failure message
|
||||
page += F("<div class='fail' id='fl'>");
|
||||
page += textUI(309);
|
||||
page += F(" <strong>");
|
||||
page += _ssid;
|
||||
page += F("</strong>.<br><a href='/'>");
|
||||
page += textUI(310);
|
||||
page += F("</a></div>");
|
||||
|
||||
page += F("</div></div></body></html>");
|
||||
|
||||
server->sendHeader("Content-Length", String(page.length()));
|
||||
server->send(200, "text/html", page);
|
||||
_readyToConnect = true;
|
||||
}
|
||||
|
||||
void WiFiConnect::handleLogo() {
|
||||
fs::File file = SPIFFS.open("/logo.png", "r");
|
||||
if (!file) {
|
||||
server->send(404, "text/plain", "Logo not found");
|
||||
return;
|
||||
}
|
||||
server->streamFile(file, "image/png");
|
||||
file.close();
|
||||
}
|
||||
|
||||
void WiFiConnect::handleNotFound() {
|
||||
if (captivePortal()) {
|
||||
return;
|
||||
}
|
||||
|
||||
String message = "File Not Found\n\n";
|
||||
message += "URI: ";
|
||||
message += server->uri();
|
||||
message += "\nMethod: ";
|
||||
message += (server->method() == HTTP_GET) ? "GET" : "POST";
|
||||
message += "\nArguments: ";
|
||||
message += server->args();
|
||||
message += "\n";
|
||||
|
||||
for (uint8_t i = 0; i < server->args(); i++) {
|
||||
message += " " + server->argName(i) + ": " + server->arg(i) + "\n";
|
||||
}
|
||||
|
||||
server->sendHeader("Cache-Control", "no-cache, no-store, must-revalidate");
|
||||
server->sendHeader("Pragma", "no-cache");
|
||||
server->sendHeader("Expires", "-1");
|
||||
server->sendHeader("Content-Length", String(message.length()));
|
||||
server->send(404, "text/plain", message);
|
||||
}
|
||||
|
||||
boolean WiFiConnect::captivePortal() {
|
||||
if (!isIp(server->hostHeader())) {
|
||||
String msg = "redirect\n";
|
||||
server->sendHeader("Location", String("http://") + toStringIp(server->client().localIP()), true);
|
||||
server->sendHeader("Content-Length", String(msg.length()));
|
||||
server->send(302, "text/plain", msg);
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
boolean WiFiConnect::isIp(String str) {
|
||||
for (unsigned int i = 0; i < str.length(); i++) {
|
||||
int c = str.charAt(i);
|
||||
if (c != '.' && (c < '0' || c > '9')) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
String WiFiConnect::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;
|
||||
}
|
||||
|
||||
int WiFiConnect::getRSSIasQuality(int RSSI) {
|
||||
int quality = 0;
|
||||
if (RSSI <= -100) {
|
||||
quality = 0;
|
||||
} else if (RSSI >= -50) {
|
||||
quality = 100;
|
||||
} else {
|
||||
quality = 2 * (RSSI + 100);
|
||||
}
|
||||
return quality;
|
||||
}
|
||||
Reference in New Issue
Block a user