Android™

Require SSL Server Certificate Domain Match

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Demonstrates how to require that the SSL server certificate's domain matches the intended domain. Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    // Call SetSslCertRequirement to require that the SSL server certificate's domain
    // matches only the domain we are intending to communicate with.

    // In this example we will test with the URL https://wrong.host.badssl.com/
    // which intentionally has an SSL certificate that does not match "wrong.host.badssl.com"

    http.SetSslCertRequirement("SAN","wrong.host.badssl.com");

    // Also validate the server cert..
    http.put_RequireSslCertVerify(true);

    // Try sending the request.  It should fail within the SSL/TLS handshake
    // because the server's certificate does not match the domain "wrong.host.badssl.com"
    String html = http.quickGetStr("https://wrong.host.badssl.com/");
    if (http.get_LastMethodSuccess() == false) {
        Log.i(TAG, http.lastErrorText());
        }
    else {
        Log.i(TAG, "Unexpected success.");
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}