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Copy pathCaptivePortal.cpp
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CaptivePortal.cpp
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#include "include/CaptivePortal.h"
const char *ssidAP = "EnergyCounterESP32 AP";
String indexPage(int num_ssid, String ssid_list[50]) {
String header_page = R"(
<!DOCTYPE HTML>
<html>
<head> <title>ESP32 Configuration Panel</title> </head>
<body>
<h1>Configuration panel</h1>
<p>Energy counter configuration panel</p>
<form action="/connect" method="post">
SSID:<br>
<select name="network">
)";
String auth_form = R"(
</select> <br><br>
Username:<br>
<input type="username" name="username"> *only for WPA2 Enterprise networks<br>
Password:<br>
<input type="password" name="password"><br><br> )";
String footer_page = R"(
<h2>Configurazione broker</h2>
Indirizzo ip broker:
<input type="text" name="brokerip"><br>
Topic appartamento 1: (ES: fila/numero)<br>
<input type="text" name="topic1"><br>
Topic appartamento 2: <br>
<input type="text" name="topic2"><br>
Topic appartamento 3:<br>
<input type="text" name="topic3"><br>
Topic appartamento 4:<br>
<input type="text" name="topic4"><br><br>
<input type="submit">
</form>
</body>
</html>)";
return header_page + getNetworks(num_ssid, ssid_list) + auth_form + footer_page;
}
void setupNetwork(){
Serial.println("Starting AP mode...");
WiFi.softAP(ssidAP);
}
void scanNetworks(int *num_ssid, String ssid_list[50]) {
Serial.println("*** Scan Networks ***");
*num_ssid = WiFi.scanNetworks();
if ( *num_ssid == -1 ) {
Serial.println("Nessuna rete wifi presente");
while (true);
}
Serial.print("Reti trovate: ");
Serial.println(*num_ssid);
for (int thisNet = 0; thisNet < *num_ssid; thisNet++) {
Serial.print(thisNet);
Serial.print(") ");
Serial.print(WiFi.SSID(thisNet));
Serial.print("\tSignal: ");
Serial.print(WiFi.RSSI(thisNet));
Serial.print(" dBm");
Serial.print("\tEncryption: ");
Serial.println(getEncryptionType(WiFi.encryptionType(thisNet)));
ssid_list[thisNet] = WiFi.SSID(thisNet);
}
}
boolean selectEncryptionType(String encryption, String ssid, String username, String password) {
char ssidToCharArray[32];
char usernameToCharArray[63];
char passwordToCharArray[50];
ssid.toCharArray(ssidToCharArray, ssid.length());
if (encryption.equals("Open")) {
return connectOpenNetwork(ssidToCharArray);
}else if (encryption.equals("WPA2_Enterprise")) {
username.toCharArray(usernameToCharArray, username.length()+1);
password.toCharArray(passwordToCharArray, password.length()+1);
return connectWpa2Enterprise(ssidToCharArray, usernameToCharArray, passwordToCharArray);
}else {
password.toCharArray(passwordToCharArray, password.length()+1);
return connectWpa(ssidToCharArray, passwordToCharArray);
}
}
String getEncryptionType(wifi_auth_mode_t encryptionType) {
switch (encryptionType) {
case (0):
return "Open";
case (1):
return "WEP";
case (2):
return "WPA_PSK";
case (3):
return "WPA2_PSK";
case (4):
return "WPA_WPA2_PSK";
case (5):
return "WPA2_Enterprise";
default:
return "UNKNOWN";
}
}
String getNetworks(int num_ssid, String ssid_list[50]) {
String list;
for (int i = 0; i < num_ssid; i++) {
list += "<option value=' " + WiFi.SSID(i) + " '>" + WiFi.SSID(i) + ": " + getEncryptionType(WiFi.encryptionType(i)) + " </option>";
}
return list;
}
boolean connectOpenNetwork(char* ssid) {
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
return true;
}
boolean connectWpa(char* ssid, char* password) {
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
return true;
}
boolean connectWpa2Enterprise(char* ssid, char* username, char* password) {
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.disconnect(true);
WiFi.mode(WIFI_STA);
esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)username, strlen(username));
esp_wifi_sta_wpa2_ent_set_username((uint8_t *)username, strlen(username));
esp_wifi_sta_wpa2_ent_set_password((uint8_t *)password, strlen(password));
esp_wpa2_config_t config = WPA2_CONFIG_INIT_DEFAULT();
esp_wifi_sta_wpa2_ent_enable(&config);
WiFi.begin(ssid); //connect to wifi
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
return true;
}
boolean saveSettingsToSdCard(String encryption, String ssid, String username, String password, char mqtt_server[],
char outTopic_Ap1[], char outTopic_Ap2[], char outTopic_Ap3[], char outTopic_Ap4[]){
Serial.println("Saving settings to SD card...");
File configFile = SD.open("/connection.config", FILE_WRITE);
if (configFile) {
configFile.println(ssid.substring(0, ssid.length()-1));
configFile.println(username);
configFile.println(password);
configFile.println(encryption);
configFile.println(String(mqtt_server));
configFile.println(String(outTopic_Ap1));
configFile.println(String(outTopic_Ap2));
configFile.println(String(outTopic_Ap3));
configFile.println(String(outTopic_Ap4));
configFile.close();
Serial.println("Settings saved.");
}else{
Serial.println("Error opening connection.config for writing configuration");
return false;
}
}
boolean searchConfigurationFile(){
return SD.exists("/connection.config")? true : false;
}