what is the use of hostnameverifier in httpsproperties
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.config.ClientConfig;
import com.sun.jersey.api.client.config.DefaultClientConfig;
import com.sun.jersey.client.urlconnection.HTTPSProperties;
public class ClientHelper
{
public static ClientConfig configureClient()
{
System.setProperty("jsse.enableSNIExtension", "false");
TrustManager[] certs = new TrustManager[]
{
new X509TrustManager()
{
@Override
public X509Certificate[] getAcceptedIssuers()
{
return null;
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException
{
}
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException
{
}
}
};
SSLContext ctx = null;
try
{
ctx = SSLContext.getInstance("SSL");
ctx.init(null, certs, new SecureRandom());
}
catch (java.security.GeneralSecurityException ex)
{
}
HttpsURLConnection.setDefaultSSLSocketFactory(ctx.getSocketFactory());
ClientConfig config = new DefaultClientConfig();
try
{
config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES, new HTTPSProperties(
new HostnameVerifier()
{
@Override
public boolean verify(String hostname, SSLSession session)
{
return true;
}
},
ctx));
}
catch (Exception e)
{
}
return config;
}
public static Client createClient()
{
return Client.create(ClientHelper.configureClient());
}
4
4
package com.example.client;
import org.glassfish.jersey.client.authentication.HttpAuthenticationFeature;
import org.springframework.http.HttpStatus;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.core.Response;
public class JerseyClientGet {
public static void main(String[] args) {
String username = "username";
String password = "p@ssword";
String input = "{\"userId\":\"12345\",\"name \":\"Viquar\",\"surname\":\"Khan\",\"Email\":\"[email protected]\"}";
try {
//SSLContext sc = SSLContext.getInstance("SSL");//Java 6
SSLContext sc = SSLContext.getInstance("TLSv1");//Java 8
System.setProperty("https.protocols", "TLSv1");//Java 8
TrustManager[] trustAllCerts = { new InsecureTrustManager() };
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HostnameVerifier allHostsValid = new InsecureHostnameVerifier();
Client client = ClientBuilder.newBuilder().sslContext(sc).hostnameVerifier(allHostsValid).build();
HttpAuthenticationFeature feature = HttpAuthenticationFeature.universalBuilder()
.credentialsForBasic(username, password).credentials(username, password).build();
client.register(feature);
//PUT request, if need uncomment it
//final Response response = client
//.target("https://localhost:7002/VaquarKhanWeb/employee/api/v1/informations")
//.request().put(Entity.entity(input, MediaType.APPLICATION_JSON), Response.class);
//GET Request
final Response response = client
.target("https://localhost:7002/VaquarKhanWeb/employee/api/v1/informations")
.request().get();
if (response.getStatus() != HttpStatus.OK.value()) { throw new RuntimeException("Failed : HTTP error code : "
+ response.getStatus()); }
String output = response.readEntity(String.class);
System.out.println("Output from Server .... \n");
System.out.println(output);
client.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
Thank you!
4
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