android retrofit主机名未经验证

2019年7月20日 369次阅读

我获得了为IP地址颁发的证书(不是通用名称),而且我很难连接到具有该证书的服务器.

OkHttpClient.Builder builder = new OkHttpClient().newBuilder();
OkHttpClient okHttpClient = builder.build();
Gson gson = new GsonBuilder()
                .setLenient()
                .create();
retrofit = new Retrofit.Builder()
                .baseUrl(url)
                .client(okHttpClient)
                .addConverterFactory(GsonConverterFactory.create(gson))
                .build();
ServerRouts service = retrofit.create(ServerRouts.class);
Resp_json> call = service.login(param, user, pw);

我收到一个错误：

Hostname 11.8.222.333 not verified:

但是当我用的时候

builder.hostnameVerifier(new HostnameVerifier() {
                @Override
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }
            });

一切正常.

如何在不关闭主机名验证程序的情况下解决该错误？

附：我的IP证书(11.8.222.333)

最佳答案 我重新定义了类似的验证方法(只是从DefaultHostnameVerifier.java复制了源代码),现在一切正常.我不知道它为什么不起作用,但现在没关系.

builder.hostnameVerifier(new HostnameVerifier() {
            @Override
            public boolean verify(String hostname, SSLSession session) {

                Certificate[] certs;
                try {
                    certs = session.getPeerCertificates();
                } catch (SSLException e) {
                    return false;
                }
                X509Certificate x509 = (X509Certificate) certs[0];
                // We can be case-insensitive when comparing the host we used to
                // establish the socket to the hostname in the certificate.
                String hostName = hostname.trim().toLowerCase(Locale.ENGLISH);
                // Verify the first CN provided. Other CNs are ignored. Firefox, wget,
                // curl, and Sun Java work this way.
                String firstCn = getFirstCn(x509);
                if (matches(hostName, firstCn)) {
                    return true;
                }
                for (String cn : getDNSSubjectAlts(x509)) {
                    if (matches(hostName, cn)) {
                        return true;
                    }
                }
                return false;

            }
        });


private String getFirstCn(X509Certificate cert) {
        String subjectPrincipal = cert.getSubjectX500Principal().toString();
        for (String token : subjectPrincipal.split(",")) {
            int x = token.indexOf("CN=");
            if (x >= 0) {
                return token.substring(x + 3);
            }
        }
        return null;
    }
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