Problema unable to find valid certification path to requested target e registratore di cassa

[fermat]

ciao!

ho in registratore di cassa che usa delle api rest per l'invio delle richieste come la stampa dello scontrino.

sto facendo varie prove, tra cui questa in java e okhttp:

package com.mp.test;

import okhttp3.*;

import java.io.IOException;

public class Main {

    public static void main(String[] args) {
        try {
            OkHttpClient client = new OkHttpClient().newBuilder()
                    .build();
            MediaType mediaType = MediaType.parse("text/plain");
            RequestBody body = RequestBody.create(mediaType, "CLEAR\nRESPRN\t\t\t\t\t\t\t\t\t\t\t\t;Annulla eventuali transazioni aperte\nCHIAVE REG\nvend rep=1, prezzo=1\nchius\nwecfine\n");
            Request request = new Request.Builder()
                    .url("https://192.168.1.120/cmd/wec")
                    .method("POST", body)
                    .addHeader("Content-Type", "text/plain")
                    .build();
            Response response = client.newCall(request).execute();
            System.out.println(response);
        } catch (IOException e) {
            System.out.println(e.getMessage());
        }
    }

}

ma ottengo questo errore:

PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

come posso bypassare il controllo della validità del certificato??

[andbin]

come posso bypassare il controllo della validità del certificato??

Non ho conoscenza/esperienza su OkHttp ma se cerchi in rete "okhttp3 ignore certificate" trovi molte info a riguardo.

[fermat]

risolto:

public class Main {

    public static void main(String[] args) {
        try {
            OkHttpClient client = getUnsafeOkHttpClient();

            MediaType mediaType = MediaType.parse("text/plain");
            RequestBody body = RequestBody.create(mediaType, "CLEAR\nRESPRN\t\t\t\t\t\t\t\t\t\t\t\t;Annulla eventuali transazioni aperte\nCHIAVE REG\nvend rep=1, prezzo=1\nchius\nwecfine\n");
            Request request = new Request.Builder()
                    .url("https://192.168.1.120/cmd/wec")
                    .method("POST", body)
                    .addHeader("Content-Type", "text/plain")
                    .build();
            Response response = client.newCall(request).execute();
            System.out.println(response);
        } catch (KeyManagementException | NoSuchAlgorithmException | IOException e) {
            System.out.println(e.getMessage());
        }
    }

    private static OkHttpClient getUnsafeOkHttpClient() throws KeyManagementException, NoSuchAlgorithmException {
        final TrustManager[] trustAllCerts = new TrustManager[]{
                new X509TrustManager() {
                    @Override
                    public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
                    }

                    @Override
                    public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
                    }

                    @Override
                    public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                        return new java.security.cert.X509Certificate[]{};
                    }
                }
        };

        final SSLContext sslContext = SSLContext.getInstance("SSL");
        sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
        final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();

        OkHttpClient.Builder builder = new OkHttpClient.Builder();
        builder.sslSocketFactory(sslSocketFactory, (X509TrustManager) trustAllCerts[0]);
        builder.hostnameVerifier((hostname, session) -> true);

        OkHttpClient okHttpClient = builder
                .connectTimeout(15, TimeUnit.SECONDS)
                .writeTimeout(15, TimeUnit.SECONDS)
                .readTimeout(15, TimeUnit.SECONDS)
                .build();

        return okHttpClient;
    }

}