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add TLS example
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‎examples/ESP-TLS/main.cpp‎

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// matth-x/ArduinoOcpp
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// Copyright Matthias Akstaller 2019 - 2022
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// MIT License
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#include <Arduino.h>
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#if defined(ESP8266)
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#include <ESP8266WiFi.h>
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#include <ESP8266WiFiMulti.h>
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ESP8266WiFiMulti WiFiMulti;
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#elif defined(ESP32)
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#include <WiFi.h>
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#else
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#error only ESP32 or ESP8266 supported at the moment
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#endif
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#include <ArduinoOcpp.h>
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#include <ArduinoOcpp/Core/OcppSocket.h> //need for setting TLS credentials
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#define STASSID "YOUR_WIFI_SSID"
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#define STAPSK "YOUR_WIFI_PW"
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#define OCPP_HOST "echo.websocket.events"
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#define OCPP_PORT 443
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#define OCPP_URL "wss://echo.websocket.events/"
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/*
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* OCPP Security Profile 2: TLS with Basic Authentication
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*
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* Example credentials from the OCPP-JSON document (p. 16)
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*/
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#define OCPP_AUTH_ID "AL1000"
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#define OCPP_AUTH_KEY "0001020304050607FFFFFFFFFFFFFFFFFFFFFFFF"
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const char ENDPOINT_CA_CERT[] PROGMEM = R"EOF(
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-----BEGIN CERTIFICATE-----
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MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
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TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
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cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMTUwNjA0MTEwNDM4
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WhcNMzUwNjA0MTEwNDM4WjBPMQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJu
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ZXQgU2VjdXJpdHkgUmVzZWFyY2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBY
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MTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAK3oJHP0FDfzm54rVygc
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h77ct984kIxuPOZXoHj3dcKi/vVqbvYATyjb3miGbESTtrFj/RQSa78f0uoxmyF+
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B5T0Y3HsLuJvW5iB4YlcNHlsdu87kGJ55tukmi8mxdAQ4Q7e2RCOFvu396j3x+UC
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KBds0pjBqAlkd25HN7rOrFleaJ1/ctaJxQZBKT5ZPt0m9STJEadao0xAH0ahmbWn
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OlFuhjuefXKnEgV4We0+UXgVCwOPjdAvBbI+e0ocS3MFEvzG6uBQE3xDk3SzynTn
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jh8BCNAw1FtxNrQHusEwMFxIt4I7mKZ9YIqioymCzLq9gwQbooMDQaHWBfEbwrbw
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HRMBAf8EBTADAQH/MB0GA1UdDgQWBBR5tFnme7bl5AFzgAiIyBpY9umbbjANBgkq
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hkiG9w0BAQsFAAOCAgEAVR9YqbyyqFDQDLHYGmkgJykIrGF1XIpu+ILlaS/V9lZL
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ubhzEFnTIZd+50xx+7LSYK05qAvqFyFWhfFQDlnrzuBZ6brJFe+GnY+EgPbk6ZGQ
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3BebYhtF8GaV0nxvwuo77x/Py9auJ/GpsMiu/X1+mvoiBOv/2X/qkSsisRcOj/KK
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NFtY2PwByVS5uCbMiogziUwthDyC3+6WVwW6LLv3xLfHTjuCvjHIInNzktHCgKQ5
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ORAzI4JMPJ+GslWYHb4phowim57iaztXOoJwTdwJx4nLCgdNbOhdjsnvzqvHu7Ur
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TkXWStAmzOVyyghqpZXjFaH3pO3JLF+l+/+sKAIuvtd7u+Nxe5AW0wdeRlN8NwdC
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jNPElpzVmbUq4JUagEiuTDkHzsxHpFKVK7q4+63SM1N95R1NbdWhscdCb+ZAJzVc
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oyi3B43njTOQ5yOf+1CceWxG1bQVs5ZufpsMljq4Ui0/1lvh+wjChP4kqKOJ2qxq
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4RgqsahDYVvTH9w7jXbyLeiNdd8XM2w9U/t7y0Ff/9yi0GE44Za4rF2LN9d11TPA
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mRGunUHBcnWEvgJBQl9nJEiU0Zsnvgc/ubhPgXRR4Xq37Z0j4r7g1SgEEzwxA57d
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emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc=
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-----END CERTIFICATE-----
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)EOF";
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WebSocketsClient wsockSecure {};
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ArduinoOcpp::EspWiFi::OcppClientSocket osockSecure {&wsockSecure};
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void setup() {
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/*
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* Initialize Serial and WiFi
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*/
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Serial.begin(115200);
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Serial.print(F("[main] Wait for WiFi "));
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#if defined(ESP8266)
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WiFiMulti.addAP(STASSID, STAPSK);
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while (WiFiMulti.run() != WL_CONNECTED) {
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Serial.print('.');
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delay(1000);
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}
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#elif defined(ESP32)
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WiFi.begin(STASSID, STAPSK);
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while (!WiFi.isConnected()) {
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Serial.print('.');
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delay(1000);
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}
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#endif
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Serial.print(F(" connected\n"));
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/*
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* Set system time (required for Certificate validation)
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*/
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configTime(3 * 3600, 0, "pool.ntp.org", "time.nist.gov"); //alternatively: settimeofday(&de, &tz);
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Serial.print(F("[main] Wait for NTP time (used for certificate validation) "));
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time_t now = time(nullptr);
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while (now < 8 * 3600 * 2) {
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delay(1000);
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Serial.print('.');
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now = time(nullptr);
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}
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Serial.printf(" finished. Unix timestamp is %lu\n", now);
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/*
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* Connect to OCPP Central System (using OCPP Security Profile 2: TLS with Basic Authentication )
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*/
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wsockSecure.beginSslWithCA(OCPP_HOST,
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OCPP_PORT,
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OCPP_URL,
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ENDPOINT_CA_CERT, "ocpp1.6");
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wsockSecure.setReconnectInterval(5000);
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wsockSecure.enableHeartbeat(15000, 3000, 2);
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wsockSecure.setAuthorization(OCPP_AUTH_ID, OCPP_AUTH_KEY); // => Authorization: Basic QUwxMDAwOgABAgMEBQYH////////////////
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OCPP_initialize(osockSecure);
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/*
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* ... see ArduinoOcpp.h for how to integrate the EVSE hardware.
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*
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* This example only showcases the TLS connection. For examples about the HW integration,
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* please see the other examples
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*/
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/*
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* Notify the Central System that this station is ready
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*/
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bootNotification("My Charging Station", "My company name");
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}
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void loop() {
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/*
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* Execute all charge point routines and handle WebSocket
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*/
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OCPP_loop();
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//... see ArduinoOcpp.h and the other examples for how to integrate the EVSE hardware.
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}

‎library.json‎

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"include":
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[
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"src/*",
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"examples/*",
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"examples/ESP/*",
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"examples/ESP-TLS/*",
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"examples/SECC/*",
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"platformio.ini",
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"library.json",
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"README.md",
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[
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"src/sdkconfig*",
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"examples/SECC/WiFiManager*",
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"examples/CompatibilityTest",
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"src/main.cpp"
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]
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},
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"main.cpp"
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]
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},
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{
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"name": "OCPP Security Profile 2",
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"base": "examples/ESP-TLS",
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"files": [
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"main.cpp"
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]
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},
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{
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"name": "EVSE Communications Controller",
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"base": "examples/SECC",

‎src/ArduinoOcpp/Core/Configuration.cpp‎

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std::shared_ptr<ConfigurationContainer> container = getContainer(filename);
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if (!container) {
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AO_DBG_INFO("init new configurations container on flash filesystem: %s", filename);
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AO_DBG_INFO("init new configurations container: %s", filename);
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container = createConfigurationContainer(filename);
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configurationContainers.push_back(container);

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