Get an S/MIME Signing Time

See more MIME Examples

Demonstrates the Chilkat Mime.GetSignatureSigningTimeStr method, which returns the CMS signingTime attribute for the signer at a zero-based index, as an RFC 822-style date string in GMT. The only argument is the signer index.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

// 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;

    CkMime mime = new CkMime();
    success = mime.LoadMimeFile("qa_data/signed.eml");
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    //  After verifying, get the CMS signingTime for each signer that has one, as an RFC 822 date string
    //  in GMT.  The only argument is the zero-based signer index.
    success = mime.Verify();
    if (success != true) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    int n = mime.get_NumSignerCerts();
    int i;
    for (i = 0; i <= n - 1; i++) {
        //  Only signers that included a signing time have one to retrieve.
        if (mime.HasSignatureSigningTime(i)) {
            String signingTime = mime.getSignatureSigningTimeStr(i);
            if (mime.get_LastMethodSuccess() == false) {
                Log.i(TAG, mime.lastErrorText());
                return;
                }

            Log.i(TAG, "Signer " + String.valueOf(i) + " signing time: " + signingTime);
            }

        }


  }

  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."
  }
}