decryption is working, yay! now work on the callback

app/src/main/java/com/zeapo/pwdstore/PasswordStore.java

@@ -19,6 +19,7 @@ import org.openintents.openpgp.util.OpenPgpListPreference;
 import java.io.File;
 import java.io.FileFilter;
 import java.io.IOException;
+import java.io.InputStream;
 
 
 public class PasswordStore extends Activity  implements ToCloneOrNot.OnFragmentInteractionListener, PasswordFragment.OnFragmentInteractionListener {
@@ -114,15 +115,17 @@ public class PasswordStore extends Activity  implements ToCloneOrNot.OnFragmentI
     @Override
     public void onFragmentInteraction(String id) {
 
-        Intent intent = new Intent(this, PgpHandler.class);
-        intent.putExtra("FILE_NAME", id);
-        startActivity(intent);
 
         try {
             byte[] data = new byte[0];
             try {
                 data = FileUtils.readFileToByteArray(PasswordRepository.getFile(id));
 
+                Intent intent = new Intent(this, PgpHandler.class);
+                intent.putExtra("FILE_CONTENT", data);
+                intent.putExtra("FILE_PATH", PasswordRepository.getFile(id).getAbsolutePath());
+                startActivity(intent);
+
             } catch (IOException e) {
                 e.printStackTrace();
             }

app/src/main/java/com/zeapo/pwdstore/PgpHandler.java

@@ -1,14 +1,33 @@
 package com.zeapo.pwdstore;
 
 import android.app.Activity;
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.content.IntentSender;
+import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.text.TextUtils;
+import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.zeapo.pwdstore.R;
 
+import org.apache.commons.io.FileUtils;
+import org.openintents.openpgp.OpenPgpError;
+import org.openintents.openpgp.OpenPgpSignatureResult;
+import org.openintents.openpgp.util.OpenPgpApi;
 import org.openintents.openpgp.util.OpenPgpServiceConnection;
+import org.openintents.openpgp.util.OpenPgpUtils;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
 
 public class PgpHandler extends Activity {
 
@@ -26,12 +45,30 @@ public class PgpHandler extends Activity {
         public static final String TAG = "Keychain";
     }
 
+    private String filePath;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_pgp_handler);
+
+        // some persistance
+        SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);
+        String providerPackageName = settings.getString("openpgp_provider_list", "");
+
+        System.out.println(getIntent().getExtras().getString("FILE_PATH"));
         Bundle extra = getIntent().getExtras();
-        ((TextView) findViewById(R.id.hhh)).setText(extra.getString("FILE_NAME"));
+        ((TextView) findViewById(R.id.hhh)).setText(extra.getString("FILE_PATH"));
+
+        if (TextUtils.isEmpty(providerPackageName)) {
+            Toast.makeText(this, "No OpenPGP Provider selected!", Toast.LENGTH_LONG).show();
+            finish();
+        } else {
+            // bind to service
+            mServiceConnection = new OpenPgpServiceConnection(
+                    PgpHandler.this, providerPackageName);
+            mServiceConnection.bindToService();
+        }
     }
 
 
@@ -53,4 +90,121 @@ public class PgpHandler extends Activity {
         }
         return super.onOptionsItemSelected(item);
     }
+
+
+    private void handleError(final OpenPgpError error) {
+        runOnUiThread(new Runnable() {
+
+            @Override
+            public void run() {
+                Toast.makeText(PgpHandler.this,
+                        "onError id:" + error.getErrorId() + "\n\n" + error.getMessage(),
+                        Toast.LENGTH_LONG).show();
+                Log.e(Constants.TAG, "onError getErrorId:" + error.getErrorId());
+                Log.e(Constants.TAG, "onError getMessage:" + error.getMessage());
+            }
+        });
+    }
+
+    private void showToast(final String message) {
+        runOnUiThread(new Runnable() {
+
+            @Override
+            public void run() {
+                Toast.makeText(PgpHandler.this,
+                        message,
+                        Toast.LENGTH_SHORT).show();
+            }
+        });
+    }
+
+    private class MyCallback implements OpenPgpApi.IOpenPgpCallback {
+        boolean returnToCiphertextField;
+        ByteArrayOutputStream os;
+        int requestCode;
+
+        private MyCallback(boolean returnToCiphertextField, ByteArrayOutputStream os, int requestCode) {
+            this.returnToCiphertextField = returnToCiphertextField;
+            this.os = os;
+            this.requestCode = requestCode;
+        }
+
+        @Override
+        public void onReturn(Intent result) {
+            switch (result.getIntExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_ERROR)) {
+                case OpenPgpApi.RESULT_CODE_SUCCESS: {
+                    showToast("RESULT_CODE_SUCCESS");
+
+                    // encrypt/decrypt/sign/verify
+                    if (os != null) {
+                        try {
+                            Log.d(OpenPgpApi.TAG, "result: " + os.toByteArray().length
+                                    + " str=" + os.toString("UTF-8"));
+                        } catch (UnsupportedEncodingException e) {
+                            Log.e(Constants.TAG, "UnsupportedEncodingException", e);
+                        }
+                    }
+
+                    // verify
+                    if (result.hasExtra(OpenPgpApi.RESULT_SIGNATURE)) {
+                        OpenPgpSignatureResult sigResult
+                                = result.getParcelableExtra(OpenPgpApi.RESULT_SIGNATURE);
+                        showToast(sigResult.toString());
+                    }
+
+                    // get key ids
+                    if (result.hasExtra(OpenPgpApi.RESULT_KEY_IDS)) {
+                        long[] keyIds = result.getLongArrayExtra(OpenPgpApi.RESULT_KEY_IDS);
+                        String out = "keyIds: ";
+                        for (int i = 0; i < keyIds.length; i++) {
+                            out += OpenPgpUtils.convertKeyIdToHex(keyIds[i]) + ", ";
+                        }
+
+                        showToast(out);
+                    }
+                    break;
+                }
+                case OpenPgpApi.RESULT_CODE_USER_INTERACTION_REQUIRED: {
+                    showToast("RESULT_CODE_USER_INTERACTION_REQUIRED");
+
+                    PendingIntent pi = result.getParcelableExtra(OpenPgpApi.RESULT_INTENT);
+                    try {
+                        PgpHandler.this.startIntentSenderForResult(pi.getIntentSender(),
+                                requestCode, null, 0, 0, 0);
+                    } catch (IntentSender.SendIntentException e) {
+                        Log.e(Constants.TAG, "SendIntentException", e);
+                    }
+                    break;
+                }
+                case OpenPgpApi.RESULT_CODE_ERROR: {
+                    showToast("RESULT_CODE_ERROR");
+
+                    OpenPgpError error = result.getParcelableExtra(OpenPgpApi.RESULT_ERROR);
+                    handleError(error);
+                    break;
+                }
+            }
+        }
+    }
+
+    public void getKey(View view) {
+        decryptAndVerify(new Intent());
+    }
+
+    public void decryptAndVerify(Intent data) {
+        data.setAction(OpenPgpApi.ACTION_DECRYPT_VERIFY);
+        data.putExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
+        data.putExtra(OpenPgpApi.EXTRA_ACCOUNT_NAME, "Mohamed Zenadi");
+
+        try {
+            InputStream is = FileUtils.openInputStream(new File(getIntent().getExtras().getString("FILE_PATH")));
+
+            ByteArrayOutputStream os = new ByteArrayOutputStream();
+
+            OpenPgpApi api = new OpenPgpApi(this, mServiceConnection.getService());
+            api.executeApiAsync(data, is, os, new MyCallback(false, os, REQUEST_CODE_DECRYPT_AND_VERIFY));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 }

app/src/main/res/layout/activity_pgp_handler.xml

@@ -14,4 +14,10 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />
 
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:onClick="getKey"
+        android:text="getkey"/>
+
 </RelativeLayout>