132 lines
7.1 KiB
C++
132 lines
7.1 KiB
C++
/*|-----------------------------------------------------------|*/
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/*|WORKING EXAMPLE FOR HTTPS CONNECTION |*/
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/*|Author: Bc. Martin Chlebovec |*/
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/*|Technical University of Košice |*/
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/*|TESTED BOARDS: Devkit v1 DOIT, Devkitc v4 |*/
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/*|CORE: 0.9x, 1.0.0, 1.0.1 tested, working (newer not tested)|*/
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/*|Supported methods: PEAP + MsCHAPv2, EAP-TTLS + MsCHAPv2 |*/
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/*|-----------------------------------------------------------|*/
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// This example demonstrates a secure connection to a WiFi network using WPA/WPA2 Enterprise (for example eduroam),
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// and establishing a secure HTTPS connection with an external server (for example arduino.php5.sk) using the defined anonymous identity, user identity, and password.
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// Note: this example is outdated and may not work!
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// For more examples see https://github.com/martinius96/ESP32-eduroam
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#include <WiFi.h>
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#include <NetworkClientSecure.h>
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#if __has_include("esp_eap_client.h")
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#include "esp_eap_client.h"
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#else
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#include "esp_wpa2.h"
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#endif
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#include <Wire.h>
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#define EAP_ANONYMOUS_IDENTITY "anonymous@example.com" //anonymous identity
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#define EAP_IDENTITY "id@example.com" //user identity
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#define EAP_PASSWORD "password" //eduroam user password
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const char *ssid = "eduroam"; // eduroam SSID
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const char *host = "arduino.php5.sk"; //external server domain for HTTPS connection
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int counter = 0;
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const char *test_root_ca = "-----BEGIN CERTIFICATE-----\n"
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"MIIEsTCCA5mgAwIBAgIQCKWiRs1LXIyD1wK0u6tTSTANBgkqhkiG9w0BAQsFADBh\n"
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"MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3\n"
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"d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD\n"
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"QTAeFw0xNzExMDYxMjIzMzNaFw0yNzExMDYxMjIzMzNaMF4xCzAJBgNVBAYTAlVT\n"
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"MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j\n"
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"b20xHTAbBgNVBAMTFFJhcGlkU1NMIFJTQSBDQSAyMDE4MIIBIjANBgkqhkiG9w0B\n"
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"AQEFAAOCAQ8AMIIBCgKCAQEA5S2oihEo9nnpezoziDtx4WWLLCll/e0t1EYemE5n\n"
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"+MgP5viaHLy+VpHP+ndX5D18INIuuAV8wFq26KF5U0WNIZiQp6mLtIWjUeWDPA28\n"
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"OeyhTlj9TLk2beytbtFU6ypbpWUltmvY5V8ngspC7nFRNCjpfnDED2kRyJzO8yoK\n"
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"MFz4J4JE8N7NA1uJwUEFMUvHLs0scLoPZkKcewIRm1RV2AxmFQxJkdf7YN9Pckki\n"
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"f2Xgm3b48BZn0zf0qXsSeGu84ua9gwzjzI7tbTBjayTpT+/XpWuBVv6fvarI6bik\n"
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"KB859OSGQuw73XXgeuFwEPHTIRoUtkzu3/EQ+LtwznkkdQIDAQABo4IBZjCCAWIw\n"
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"HQYDVR0OBBYEFFPKF1n8a8ADIS8aruSqqByCVtp1MB8GA1UdIwQYMBaAFAPeUDVW\n"
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"0Uy7ZvCj4hsbw5eyPdFVMA4GA1UdDwEB/wQEAwIBhjAdBgNVHSUEFjAUBggrBgEF\n"
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"BQcDAQYIKwYBBQUHAwIwEgYDVR0TAQH/BAgwBgEB/wIBADA0BggrBgEFBQcBAQQo\n"
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"MCYwJAYIKwYBBQUHMAGGGGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBCBgNVHR8E\n"
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"OzA5MDegNaAzhjFodHRwOi8vY3JsMy5kaWdpY2VydC5jb20vRGlnaUNlcnRHbG9i\n"
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"YWxSb290Q0EuY3JsMGMGA1UdIARcMFowNwYJYIZIAYb9bAECMCowKAYIKwYBBQUH\n"
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"AgEWHGh0dHBzOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwCwYJYIZIAYb9bAEBMAgG\n"
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"BmeBDAECATAIBgZngQwBAgIwDQYJKoZIhvcNAQELBQADggEBAH4jx/LKNW5ZklFc\n"
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"YWs8Ejbm0nyzKeZC2KOVYR7P8gevKyslWm4Xo4BSzKr235FsJ4aFt6yAiv1eY0tZ\n"
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"/ZN18bOGSGStoEc/JE4ocIzr8P5Mg11kRYHbmgYnr1Rxeki5mSeb39DGxTpJD4kG\n"
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"hs5lXNoo4conUiiJwKaqH7vh2baryd8pMISag83JUqyVGc2tWPpO0329/CWq2kry\n"
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"qv66OSMjwulUz0dXf4OHQasR7CNfIr+4KScc6ABlQ5RDF86PGeE6kdwSQkFiB/cQ\n"
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"ysNyq0jEDQTkfa2pjmuWtMCNbBnhFXBYejfubIhaUbEv2FOQB3dCav+FPg5eEveX\n"
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"TVyMnGo=\n"
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"-----END CERTIFICATE-----\n";
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// You can use x.509 client certificates if you want
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//const char* test_client_key = ""; //to verify the client
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//const char* test_client_cert = ""; //to verify the client
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NetworkClientSecure client;
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void setup() {
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Serial.begin(115200);
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delay(10);
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Serial.println();
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Serial.print("Connecting to network: ");
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Serial.println(ssid);
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WiFi.disconnect(true); //disconnect form wifi to set new wifi connection
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WiFi.mode(WIFI_STA); //init wifi mode
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#if __has_include("esp_eap_client.h")
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esp_eap_client_set_identity((uint8_t *)EAP_ANONYMOUS_IDENTITY, strlen(EAP_ANONYMOUS_IDENTITY)); //provide identity
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esp_eap_client_set_username((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide username
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esp_eap_client_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD)); //provide password
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esp_wifi_sta_enterprise_enable();
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#else
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esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_ANONYMOUS_IDENTITY, strlen(EAP_ANONYMOUS_IDENTITY)); //provide identity
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esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide username
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esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD)); //provide password
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esp_wifi_sta_wpa2_ent_enable();
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#endif
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WiFi.begin(ssid); //connect to wifi
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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counter++;
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if (counter >= 60) { //after 30 seconds timeout - reset board (on unsuccessful connection)
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ESP.restart();
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}
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}
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client.setCACert(test_root_ca);
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//client.setCertificate(test_client_cert); // for client verification - certificate
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//client.setPrivateKey(test_client_key); // for client verification - private key
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println("IP address set: ");
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Serial.println(WiFi.localIP()); //print LAN IP
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}
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void loop() {
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if (WiFi.status() == WL_CONNECTED) { //if we are connected to eduroam network
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counter = 0; //reset counter
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Serial.println("Wifi is still connected with IP: ");
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Serial.println(WiFi.localIP()); //inform user about his IP address
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} else if (WiFi.status() != WL_CONNECTED) { //if we lost connection, retry
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WiFi.begin(ssid);
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}
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while (WiFi.status() != WL_CONNECTED) { //during lost connection, print dots
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delay(500);
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Serial.print(".");
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counter++;
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if (counter >= 60) { //30 seconds timeout - reset board
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ESP.restart();
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}
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}
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Serial.print("Connecting to website: ");
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Serial.println(host);
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if (client.connect(host, 443)) {
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String url = "/rele/rele1.txt";
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client.print(String("GET ") + url + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "User-Agent: ESP32\r\n" + "Connection: close\r\n\r\n");
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while (client.connected()) {
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String header = client.readStringUntil('\n');
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Serial.println(header);
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if (header == "\r") {
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break;
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}
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}
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String line = client.readStringUntil('\n');
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Serial.println(line);
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} else {
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Serial.println("Connection unsuccessful");
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}
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delay(5000);
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}
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