85 lines
2.4 KiB
Arduino
85 lines
2.4 KiB
Arduino
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/**
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*
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* Connect to AP and run in bash:
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*
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* > while true; do echo "PING"; sleep 0.1; done | websocat ws://192.168.4.1/ws
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*
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*/
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#include <Arduino.h>
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#ifdef ESP8266
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#include <ESP8266WiFi.h>
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#endif
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#ifdef ESP32
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#include <WiFi.h>
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#endif
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#include <ESPAsyncWebServer.h>
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#include <list>
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AsyncWebServer server(80);
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AsyncWebSocket ws("/ws");
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void onWsEvent(AsyncWebSocket* server, AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len) {
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if (type == WS_EVT_CONNECT) {
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Serial.printf("Client #%" PRIu32 " connected.\n", client->id());
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} else if (type == WS_EVT_DISCONNECT) {
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Serial.printf("Client #%" PRIu32 " disconnected.\n", client->id());
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} else if (type == WS_EVT_ERROR) {
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Serial.printf("Client #%" PRIu32 " error.\n", client->id());
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} else if (type == WS_EVT_DATA) {
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Serial.printf("Client #%" PRIu32 " len: %u\n", client->id(), len);
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} else if (type == WS_EVT_PONG) {
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Serial.printf("Client #%" PRIu32 " pong.\n", client->id());
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} else if (type == WS_EVT_PING) {
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Serial.printf("Client #%" PRIu32 " ping.\n", client->id());
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}
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}
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void setup() {
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Serial.begin(115200);
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WiFi.mode(WIFI_AP);
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WiFi.softAP("esp-captive");
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ws.onEvent(onWsEvent);
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server.addHandler(&ws);
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server.on("/close_all_ws_clients", HTTP_GET | HTTP_POST, [](AsyncWebServerRequest* request) {
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Serial.println("Closing all WebSocket clients...");
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ws.closeAll();
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request->send(200, "application/json", "{\"status\":\"all clients closed\"}");
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});
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server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) {
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request->send(200, "text/html", R"rawliteral(
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<!DOCTYPE html>
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<html>
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<head></head>
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<script>
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let ws = new WebSocket("ws://" + window.location.host + "/ws");
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document.addEventListener("DOMContentLoaded", function () {
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ws.onopen = function () {
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console.log("WebSocket connected");
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};
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});
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function closeAllWsClients() {
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fetch("/close_all_ws_clients", {
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method : "POST",
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});
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};
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</script>
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<body>
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<button onclick = "closeAllWsClients()" style = "width: 200px"> ws close all</button><p></p>
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</body>
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</html>
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)rawliteral");
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});
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server.begin();
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}
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void loop() {
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vTaskDelete(NULL);
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}
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