1 files changed, 276 insertions, 0 deletions
diff --git a/app/src/main/java/com/zeapo/pwdstore/crypto/PgpHandler.java b/app/src/main/java/com/zeapo/pwdstore/crypto/PgpHandler.java
new file mode 100644
index 00000000..0132c4cd
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/crypto/PgpHandler.java
@@ -0,0 +1,276 @@
+package com.zeapo.pwdstore.crypto;
+
+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 {
+
+
+    private OpenPgpServiceConnection mServiceConnection;
+
+    public static final int REQUEST_CODE_SIGN = 9910;
+    public static final int REQUEST_CODE_ENCRYPT = 9911;
+    public static final int REQUEST_CODE_SIGN_AND_ENCRYPT = 9912;
+    public static final int REQUEST_CODE_DECRYPT_AND_VERIFY = 9913;
+    public static final int REQUEST_CODE_GET_KEY = 9914;
+    public static final int REQUEST_CODE_GET_KEY_IDS = 9915;
+
+    public final class Constants {
+        public static final String TAG = "Keychain";
+    }
+
+    private String filePath;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_pgp_handler);
+
+        // Setup action buttons
+        getActionBar().setDisplayHomeAsUpEnabled(true);
+        getActionBar().setHomeButtonEnabled(true);
+
+        Bundle extra = getIntent().getExtras();
+        ((TextView) findViewById(R.id.crypto_handler_name)).setText(extra.getString("NAME"));
+
+        // some persistance
+        SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(this);
+        String providerPackageName = settings.getString("openpgp_provider_list", "");
+        String accountName = settings.getString("openpgp_account_name", "");
+
+        if (accountName.isEmpty()) {
+            ((TextView) findViewById(R.id.crypto_account_name)).setText("No account selected");
+        }
+
+        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();
+        }
+    }
+
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        getMenuInflater().inflate(R.menu.pgp_handler, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        int id = item.getItemId();
+        if (id == R.id.action_settings) {
+            return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    public void decrypt(View view) {
+        decryptAndVerify(new Intent());
+//        getKeyIds(new Intent());
+    }
+
+    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"));
+                            showToast(os.toString("UTF-8"));
+                            if (returnToCiphertextField) {
+//                                mCiphertext.setText(os.toString("UTF-8"));
+                            } else {
+//                                mMessage.setText(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 decryptAndVerify(Intent data) {
+        data.setAction(OpenPgpApi.ACTION_DECRYPT_VERIFY);
+        data.putExtra(OpenPgpApi.EXTRA_REQUEST_ASCII_ARMOR, true);
+
+        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();
+        }
+    }
+
+
+    public void getKeyIds(Intent data) {
+        data.setAction(OpenPgpApi.ACTION_GET_KEY_IDS);
+        data.putExtra(OpenPgpApi.EXTRA_USER_IDS, new String[]{getIntent().getExtras().getString("PGP-ID")});
+
+        OpenPgpApi api = new OpenPgpApi(this, mServiceConnection.getService());
+        api.executeApiAsync(data, null, null, new MyCallback(false, null, REQUEST_CODE_GET_KEY_IDS));
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        Log.d(Constants.TAG, "onActivityResult resultCode: " + resultCode);
+
+        // try again after user interaction
+        if (resultCode == RESULT_OK) {
+            /*
+             * The data originally given to one of the methods above, is again
+             * returned here to be used when calling the method again after user
+             * interaction. The Intent now also contains results from the user
+             * interaction, for example selected key ids.
+             */
+            switch (requestCode) {
+//                case REQUEST_CODE_SIGN: {
+//                    sign(data);
+//                    break;
+//                }
+//                case REQUEST_CODE_ENCRYPT: {
+//                    encrypt(data);
+//                    break;
+//                }
+//                case REQUEST_CODE_SIGN_AND_ENCRYPT: {
+//                    signAndEncrypt(data);
+//                    break;
+//                }
+                case REQUEST_CODE_DECRYPT_AND_VERIFY: {
+                    decryptAndVerify(data);
+                    break;
+                }
+//                case REQUEST_CODE_GET_KEY: {
+//                    getKey(data);
+//                    break;
+//                }
+                case REQUEST_CODE_GET_KEY_IDS: {
+                    getKeyIds(data);
+                    break;
+                }
+            }
+        }
+    }
+
+}