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author | Dominik Schürmann <dominik@dominikschuermann.de> | 2014-04-06 12:57:42 +0200 |
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committer | Dominik Schürmann <dominik@dominikschuermann.de> | 2014-04-06 12:57:42 +0200 |
commit | 6d1137190529dc7add74926cea52c377883319be (patch) | |
tree | fd88b29a048f3aec1daa2a84bbaf22c0efa3663f /OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java | |
parent | 17997dd362fe62d72113a0536069d0fdb9c3211b (diff) | |
download | open-keychain-6d1137190529dc7add74926cea52c377883319be.tar.gz open-keychain-6d1137190529dc7add74926cea52c377883319be.tar.bz2 open-keychain-6d1137190529dc7add74926cea52c377883319be.zip |
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.java | 167 |
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); + } + +} |