fix nullpointerexception in importkeyactivity

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpImportExport.java

@@ -123,11 +123,16 @@ public class PgpImportExport {
     }
 
     /** Imports keys from given data. If keyIds is given only those are imported */
-    public ImportResult importKeyRings(List<ParcelableKeyRing> entries)
+    public ImportResult importKeyRings(List<ParcelableKeyRing> entries) {
-            throws PgpGeneralException, PGPException, IOException {
 
         updateProgress(R.string.progress_importing, 0, 100);
 
+        // If there aren't even any keys, do nothing here.
+        if (entries == null || entries.size() == 0) {
+            return new ImportResult(
+                    ImportResult.RESULT_FAIL_NOTHING, mProviderHelper.getLog(), 0, 0, 0);
+        }
+
         int newKeys = 0, oldKeys = 0, badKeys = 0;
 
         int position = 0;
@@ -165,6 +170,9 @@ public class PgpImportExport {
                     newKeys += 1;
                 }
 
+            } catch (IOException e) {
+                Log.e(Constants.TAG, "Encountered bad key on import!", e);
+                ++badKeys;
             } catch (PgpGeneralException e) {
                 Log.e(Constants.TAG, "Encountered bad key on import!", e);
                 ++badKeys;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java

@@ -428,9 +428,14 @@ public class ImportKeysActivity extends ActionBarActivity {
                 if (message.arg1 == KeychainIntentServiceHandler.MESSAGE_OKAY) {
                     // get returned data bundle
                     Bundle returnData = message.getData();
+                    if (returnData == null) {
+                        return;
+                    }
                     final ImportResult result =
                             returnData.getParcelable(KeychainIntentService.RESULT);
-
+                    if (result == null) {
+                        return;
+                    }
                     int resultType = result.getResult();
 
                     String str;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysAdapter.java

@@ -85,6 +85,10 @@ public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
 
     public ArrayList<ImportKeysListEntry> getSelectedEntries() {
         ArrayList<ImportKeysListEntry> selectedData = new ArrayList<ImportKeysListEntry>();
+        // Nothing to select, nvm.
+        if (mData == null) {
+            return selectedData;
+        }
         for (ImportKeysListEntry entry : mData) {
             if (entry.isSelected()) {
                 selectedData.add(entry);