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Add INO file
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moritz89 committed Jun 16, 2024
1 parent 9e1e857 commit 0ec2080
Showing 1 changed file with 127 additions and 0 deletions.
127 changes: 127 additions & 0 deletions examples/esp32/WebSocketClientSSLBundle/webSockerClientSSLBundle.ino
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/*
* main.cpp
*
* Created on: 15.06.2024
*
*/

#include <Arduino.h>
#include <WiFi.h>
#include <WiFiMulti.h>

#include <WebSocketsClient.h>

extern const uint8_t rootca_crt_bundle_start[] asm(
"_binary_data_cert_x509_crt_bundle_bin_start");

WiFiMulti wifiMulti;
WebSocketsClient webSocket;

#define USE_SERIAL Serial

void setClock() {
configTime(0, 0, "pool.ntp.org", "time.nist.gov");

USE_SERIAL.print(F("Waiting for NTP time sync: "));
time_t nowSecs = time(nullptr);
while(nowSecs < 8 * 3600 * 2) {
delay(500);
USE_SERIAL.print(F("."));
yield();
nowSecs = time(nullptr);
}

USE_SERIAL.println();
struct tm timeinfo;
gmtime_r(&nowSecs, &timeinfo);
USE_SERIAL.print(F("Current time: "));
USE_SERIAL.print(asctime(&timeinfo));
}

void hexdump(const void * mem, uint32_t len, uint8_t cols = 16) {
const uint8_t * src = (const uint8_t *)mem;
USE_SERIAL.printf("\n[HEXDUMP] Address: 0x%08X len: 0x%X (%d)", (ptrdiff_t)src, len, len);
for(uint32_t i = 0; i < len; i++) {
if(i % cols == 0) {
USE_SERIAL.printf("\n[0x%08X] 0x%08X: ", (ptrdiff_t)src, i);
}
USE_SERIAL.printf("%02X ", *src);
src++;
}
USE_SERIAL.printf("\n");
}

void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
USE_SERIAL.printf("[WSc] Disconnected!\n");
break;
case WStype_CONNECTED:
USE_SERIAL.printf("[WSc] Connected to url: %s\n", payload);

// send message to server when Connected
webSocket.sendTXT("Connected");
break;
case WStype_TEXT:
USE_SERIAL.printf("[WSc] get text: %s\n", payload);

// send message to server
// webSocket.sendTXT("message here");
break;
case WStype_BIN:
USE_SERIAL.printf("[WSc] get binary length: %u\n", length);
hexdump(payload, length);

// send data to server
// webSocket.sendBIN(payload, length);
break;
case WStype_ERROR:
case WStype_FRAGMENT_TEXT_START:
case WStype_FRAGMENT_BIN_START:
case WStype_FRAGMENT:
case WStype_FRAGMENT_FIN:
break;
}
}

void setup() {
USE_SERIAL.begin(115200);

USE_SERIAL.setDebugOutput(true);

USE_SERIAL.println();
USE_SERIAL.println();
USE_SERIAL.println();

for(uint8_t t = 4; t > 0; t--) {
USE_SERIAL.printf("[SETUP] BOOT WAIT %d...\n", t);
USE_SERIAL.flush();
delay(1000);
}

wifiMulti.addAP("SSID", "WIFI_PASSPHRASE");

// WiFi.disconnect();
while(wifiMulti.run() != WL_CONNECTED) {
delay(100);
}

setClock();

// server address, port and URL. This server can be flakey.
// Expected response: Request served by 0123456789abcdef
webSocket.beginSslWithBundle("echo.websocket.org", 443, "/", rootca_crt_bundle_start, "");

// event handler
webSocket.onEvent(webSocketEvent);

// use HTTP Basic Authorization this is optional enable if needed
// webSocket.setAuthorization("user", "Password");

// try ever 5000 again if connection has failed
webSocket.setReconnectInterval(5000);
}

void loop() {
webSocket.loop();
}

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