1 files changed, 137 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/BackupFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/BackupFragment.java
new file mode 100644
index 000000000..714623ad4
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/BackupFragment.java
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2015 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.database.Cursor;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.service.PassphraseCacheService;
+import org.sufficientlysecure.keychain.util.ExportHelper;
+
+import java.util.ArrayList;
+
+public class BackupFragment extends Fragment {
+
+    // This ids for multiple key export.
+    private ArrayList<Long> mIdsForRepeatAskPassphrase;
+    private ArrayList<Long> mIdsForExport;
+    // This index for remembering the number of master key.
+    private int mIndex;
+
+    static final int REQUEST_REPEAT_PASSPHRASE = 1;
+
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.backup_fragment, container, false);
+
+        View mBackupAll = view.findViewById(R.id.backup_all);
+        View mBackupPublicKeys = view.findViewById(R.id.backup_public_keys);
+
+        mBackupAll.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                exportToFile(true);
+            }
+        });
+
+        mBackupPublicKeys.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                exportToFile(false);
+            }
+        });
+
+        return view;
+    }
+
+    private void exportToFile(boolean includeSecretKeys) {
+        if (includeSecretKeys) {
+            mIdsForRepeatAskPassphrase = new ArrayList<>();
+
+            Cursor cursor = getActivity().getContentResolver().query(
+                    KeychainContract.KeyRingData.buildSecretKeyRingUri(), null, null, null, null);
+            try {
+                if (cursor != null) {
+                    int keyIdColumn = cursor.getColumnIndex(KeychainContract.KeyRingData.MASTER_KEY_ID);
+                    while (cursor.moveToNext()) {
+                        long keyId = cursor.getLong(keyIdColumn);
+                        try {
+                            if (PassphraseCacheService.getCachedPassphrase(
+                                    getActivity(), keyId, keyId) == null) {
+                                mIdsForRepeatAskPassphrase.add(keyId);
+                            }
+                        } catch (PassphraseCacheService.KeyNotFoundException e) {
+                            // This happens when the master key is stripped
+                            // and ignore this key.
+                        }
+                    }
+                }
+            } finally {
+                if (cursor != null) {
+                    cursor.close();
+                }
+            }
+
+            mIndex = 0;
+            if (mIdsForRepeatAskPassphrase.size() != 0) {
+                startPassphraseActivity();
+                return;
+            }
+
+            ExportHelper exportHelper = new ExportHelper(getActivity());
+            exportHelper.showExportKeysDialog(null, Constants.Path.APP_DIR_FILE, true);
+        } else {
+            ExportHelper exportHelper = new ExportHelper(getActivity());
+            exportHelper.showExportKeysDialog(null, Constants.Path.APP_DIR_FILE, false);
+        }
+    }
+
+    private void startPassphraseActivity() {
+        Intent intent = new Intent(getActivity(), PassphraseDialogActivity.class);
+        long masterKeyId = mIdsForRepeatAskPassphrase.get(mIndex++);
+        intent.putExtra(PassphraseDialogActivity.EXTRA_SUBKEY_ID, masterKeyId);
+        startActivityForResult(intent, REQUEST_REPEAT_PASSPHRASE);
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == REQUEST_REPEAT_PASSPHRASE) {
+            if (resultCode != Activity.RESULT_OK) {
+                return;
+            }
+            if (mIndex < mIdsForRepeatAskPassphrase.size()) {
+                startPassphraseActivity();
+                return;
+            }
+
+            ExportHelper exportHelper = new ExportHelper(getActivity());
+            exportHelper.showExportKeysDialog(null, Constants.Path.APP_DIR_FILE, true);
+        }
+    }
+}