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authorDominik Schürmann <dominik@dominikschuermann.de>2014-04-06 12:57:42 +0200
committerDominik Schürmann <dominik@dominikschuermann.de>2014-04-06 12:57:42 +0200
commit6d1137190529dc7add74926cea52c377883319be (patch)
treefd88b29a048f3aec1daa2a84bbaf22c0efa3663f /OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java
parent17997dd362fe62d72113a0536069d0fdb9c3211b (diff)
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Rename folder structure from OpenPGP Keychain to OpenKeychain
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java')
-rw-r--r--OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java167
1 files changed, 167 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java
new file mode 100644
index 000000000..c9983213c
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2012-2013 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.adapter;
+
+import android.content.Context;
+import android.support.v4.content.AsyncTaskLoader;
+import org.spongycastle.openpgp.PGPKeyRing;
+import org.spongycastle.openpgp.PGPObjectFactory;
+import org.spongycastle.openpgp.PGPUtil;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.util.InputData;
+import org.sufficientlysecure.keychain.util.Log;
+import org.sufficientlysecure.keychain.util.PositionAwareInputStream;
+
+import java.io.BufferedInputStream;
+import java.io.InputStream;
+import java.util.ArrayList;
+
+public class ImportKeysListLoader
+ extends AsyncTaskLoader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
+
+ public static class FileHasNoContent extends Exception {
+
+ }
+
+ public static class NonPgpPart extends Exception {
+ private int mCount;
+
+ public NonPgpPart(int count) {
+ this.mCount = count;
+ }
+
+ public int getCount() {
+ return mCount;
+ }
+ }
+
+ Context mContext;
+
+ InputData mInputData;
+
+ ArrayList<ImportKeysListEntry> mData = new ArrayList<ImportKeysListEntry>();
+ AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> mEntryListWrapper;
+
+ public ImportKeysListLoader(Context context, InputData inputData) {
+ super(context);
+ this.mContext = context;
+ this.mInputData = inputData;
+ }
+
+ @Override
+ public AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> loadInBackground() {
+
+ mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mData, null);
+
+ if (mInputData == null) {
+ Log.e(Constants.TAG, "Input data is null!");
+ return mEntryListWrapper;
+ }
+
+ generateListOfKeyrings(mInputData);
+
+ return mEntryListWrapper;
+ }
+
+ @Override
+ protected void onReset() {
+ super.onReset();
+
+ // Ensure the loader is stopped
+ onStopLoading();
+ }
+
+ @Override
+ protected void onStartLoading() {
+ forceLoad();
+ }
+
+ @Override
+ protected void onStopLoading() {
+ cancelLoad();
+ }
+
+ @Override
+ public void deliverResult(AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> data) {
+ super.deliverResult(data);
+ }
+
+ /**
+ * Reads all PGPKeyRing objects from input
+ *
+ * @param inputData
+ * @return
+ */
+ private void generateListOfKeyrings(InputData inputData) {
+
+ boolean isEmpty = true;
+ int nonPgpCounter = 0;
+
+ PositionAwareInputStream progressIn = new PositionAwareInputStream(
+ inputData.getInputStream());
+
+ // need to have access to the bufferedInput, so we can reuse it for the possible
+ // PGPObject chunks after the first one, e.g. files with several consecutive ASCII
+ // armor blocks
+ BufferedInputStream bufferedInput = new BufferedInputStream(progressIn);
+ try {
+
+ // read all available blocks... (asc files can contain many blocks with BEGIN END)
+ while (bufferedInput.available() > 0) {
+ isEmpty = false;
+ InputStream in = PGPUtil.getDecoderStream(bufferedInput);
+ PGPObjectFactory objectFactory = new PGPObjectFactory(in);
+
+ // go through all objects in this block
+ Object obj;
+ while ((obj = objectFactory.nextObject()) != null) {
+ Log.d(Constants.TAG, "Found class: " + obj.getClass());
+
+ if (obj instanceof PGPKeyRing) {
+ PGPKeyRing newKeyring = (PGPKeyRing) obj;
+ addToData(newKeyring);
+ } else {
+ Log.e(Constants.TAG, "Object not recognized as PGPKeyRing!");
+ nonPgpCounter++;
+ }
+ }
+ }
+ } catch (Exception e) {
+ Log.e(Constants.TAG, "Exception on parsing key file!", e);
+ mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mData, e);
+ nonPgpCounter = 0;
+ }
+
+ if (isEmpty) {
+ Log.e(Constants.TAG, "File has no content!", new FileHasNoContent());
+ mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>
+ (mData, new FileHasNoContent());
+ }
+
+ if (nonPgpCounter > 0) {
+ mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>
+ (mData, new NonPgpPart(nonPgpCounter));
+ }
+ }
+
+ private void addToData(PGPKeyRing keyring) {
+ ImportKeysListEntry item = new ImportKeysListEntry(keyring);
+ mData.add(item);
+ }
+
+}