rename ProviderHelper -> DatabaseInteractor

OpenKeychain/src/androidTest/java/org/sufficientlysecure/keychain/TestHelpers.java

@@ -31,18 +31,15 @@ import android.content.Context;
 import android.support.annotation.StringRes;
 import android.support.test.espresso.UiController;
 import android.support.test.espresso.ViewAction;
-import android.support.test.espresso.base.DefaultFailureHandler;
 import android.support.test.espresso.matcher.ViewMatchers;
 import android.view.View;
 
 import com.nispok.snackbar.Snackbar;
-import com.tokenautocomplete.TokenCompleteTextView;
-import org.hamcrest.CoreMatchers;
 import org.hamcrest.Matcher;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing.IteratorWithIOThrow;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.ui.util.Notify.Style;
 import org.sufficientlysecure.keychain.util.ProgressScaler;
@@ -100,7 +97,7 @@ public class TestHelpers {
         IteratorWithIOThrow<UncachedKeyRing> stream = UncachedKeyRing.fromStream(
                 getInstrumentation().getContext().getAssets().open(name));
 
-        ProviderHelper helper = new ProviderHelper(context);
+        DatabaseInteractor helper = new DatabaseInteractor(context);
         while(stream.hasNext()) {
             UncachedKeyRing ring = stream.next();
             if (ring.isSecret()) {

OpenKeychain/src/androidTest/java/org/sufficientlysecure/keychain/actions/CustomActions.java

@@ -22,14 +22,12 @@ package org.sufficientlysecure.keychain.actions;
 import android.support.test.espresso.UiController;
 import android.support.test.espresso.ViewAction;
 import android.support.test.espresso.matcher.ViewMatchers;
-import android.support.v4.view.GravityCompat;
-import android.support.v4.widget.DrawerLayout;
 import android.view.View;
 
 import com.tokenautocomplete.TokenCompleteTextView;
 import org.hamcrest.Matcher;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.ui.adapter.KeyAdapter;
 
 import static android.support.test.InstrumentationRegistry.getTargetContext;
@@ -39,7 +37,7 @@ public abstract class CustomActions {
 
     public static ViewAction tokenEncryptViewAddToken(long keyId) throws Exception {
         CanonicalizedPublicKeyRing ring =
-                new ProviderHelper(getTargetContext()).getCanonicalizedPublicKeyRing(keyId);
+                new DatabaseInteractor(getTargetContext()).getCanonicalizedPublicKeyRing(keyId);
         final Object item = new KeyAdapter.KeyItem(ring);
 
         return new ViewAction() {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BackupOperation.java

@@ -53,7 +53,7 @@ import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.provider.TemporaryFileProvider;
 import org.sufficientlysecure.keychain.service.BackupKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -86,14 +86,14 @@ public class BackupOperation extends BaseOperation<BackupKeyringParcel> {
     private static final int INDEX_SECKEY_DATA = 2;
     private static final int INDEX_HAS_ANY_SECRET = 3;
 
-    public BackupOperation(Context context, ProviderHelper providerHelper, Progressable
+    public BackupOperation(Context context, DatabaseInteractor databaseInteractor, Progressable
             progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
-    public BackupOperation(Context context, ProviderHelper providerHelper,
+    public BackupOperation(Context context, DatabaseInteractor databaseInteractor,
                            Progressable progressable, AtomicBoolean cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
     @NonNull
@@ -170,7 +170,7 @@ public class BackupOperation extends BaseOperation<BackupKeyringParcel> {
     private PgpSignEncryptResult encryptBackupData(@NonNull BackupKeyringParcel backupInput,
             @NonNull CryptoInputParcel cryptoInput, @Nullable OutputStream outputStream, Uri plainUri, long exportedDataSize)
             throws FileNotFoundException {
-        PgpSignEncryptOperation signEncryptOperation = new PgpSignEncryptOperation(mContext, mProviderHelper, mProgressable, mCancelled);
+        PgpSignEncryptOperation signEncryptOperation = new PgpSignEncryptOperation(mContext, mDatabaseInteractor, mProgressable, mCancelled);
 
         PgpSignEncryptData data = new PgpSignEncryptData();
         data.setSymmetricPassphrase(cryptoInput.getPassphrase());
@@ -326,7 +326,7 @@ public class BackupOperation extends BaseOperation<BackupKeyringParcel> {
                     + " IN (" + placeholders + ")";
         }
 
-        return mProviderHelper.getContentResolver().query(
+        return mDatabaseInteractor.getContentResolver().query(
                 KeyRings.buildUnifiedKeyRingsUri(), PROJECTION, selection, selectionArgs,
                 Tables.KEYS + "." + KeyRings.MASTER_KEY_ID
         );

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BaseOperation.java

@@ -26,8 +26,8 @@ import org.sufficientlysecure.keychain.Constants.key;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.pgp.PassphraseCacheInterface;
 import org.sufficientlysecure.keychain.pgp.Progressable;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.util.Passphrase;
@@ -40,7 +40,7 @@ public abstract class BaseOperation <T extends Parcelable> implements Passphrase
     final public Progressable mProgressable;
     final public AtomicBoolean mCancelled;
 
-    final public ProviderHelper mProviderHelper;
+    final public DatabaseInteractor mDatabaseInteractor;
 
     /** An abstract base class for all *Operation classes. It provides a number
      * of common methods for progress, cancellation and passphrase cache handling.
@@ -64,18 +64,18 @@ public abstract class BaseOperation <T extends Parcelable> implements Passphrase
      * if there is no prefix it is considered Android-related.
      *
      */
-    public BaseOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+    public BaseOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable) {
         this.mContext = context;
         this.mProgressable = progressable;
-        this.mProviderHelper = providerHelper;
+        this.mDatabaseInteractor = databaseInteractor;
         mCancelled = null;
     }
 
-    public BaseOperation(Context context, ProviderHelper providerHelper,
+    public BaseOperation(Context context, DatabaseInteractor databaseInteractor,
                          Progressable progressable, AtomicBoolean cancelled) {
         mContext = context;
         mProgressable = progressable;
-        mProviderHelper = providerHelper;
+        mDatabaseInteractor = databaseInteractor;
         mCancelled = cancelled;
     }
 
@@ -114,7 +114,7 @@ public abstract class BaseOperation <T extends Parcelable> implements Passphrase
     public Passphrase getCachedPassphrase(long subKeyId) throws NoSecretKeyException {
         try {
             if (subKeyId != key.symmetric) {
-                long masterKeyId = mProviderHelper.getMasterKeyId(subKeyId);
+                long masterKeyId = mDatabaseInteractor.getMasterKeyId(subKeyId);
                 return getCachedPassphrase(masterKeyId, subKeyId);
             }
             return getCachedPassphrase(key.symmetric, key.symmetric);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java

@@ -41,12 +41,11 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult.Operat
 import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
-import org.sufficientlysecure.keychain.pgp.PgpSecurityConstants;
 import org.sufficientlysecure.keychain.pgp.PgpSecurityConstants.OpenKeychainSymmetricKeyAlgorithmTags;
 import org.sufficientlysecure.keychain.pgp.PgpSignEncryptData;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.BenchmarkInputParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.util.Log;
@@ -56,9 +55,9 @@ import org.sufficientlysecure.keychain.util.ProgressScaler;
 
 public class BenchmarkOperation extends BaseOperation<BenchmarkInputParcel> {
 
-    public BenchmarkOperation(Context context, ProviderHelper providerHelper, Progressable
+    public BenchmarkOperation(Context context, DatabaseInteractor databaseInteractor, Progressable
             progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     @NonNull
@@ -82,7 +81,7 @@ public class BenchmarkOperation extends BaseOperation<BenchmarkInputParcel> {
         int i = 0;
         do {
             SignEncryptOperation op =
-                    new SignEncryptOperation(mContext, mProviderHelper,
+                    new SignEncryptOperation(mContext, mDatabaseInteractor,
                             new ProgressScaler(mProgressable, i*(50/numRepeats), (i+1)*(50/numRepeats), 100), mCancelled);
             PgpSignEncryptData data = new PgpSignEncryptData();
             data.setSymmetricPassphrase(passphrase);
@@ -104,7 +103,7 @@ public class BenchmarkOperation extends BaseOperation<BenchmarkInputParcel> {
         do {
             DecryptVerifyResult decryptResult;
             PgpDecryptVerifyOperation op =
-                    new PgpDecryptVerifyOperation(mContext, mProviderHelper,
+                    new PgpDecryptVerifyOperation(mContext, mDatabaseInteractor,
                             new ProgressScaler(mProgressable, 50 +i*(50/numRepeats), 50 +(i+1)*(50/numRepeats), 100));
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(encryptResult.getResultBytes());
             input.setAllowSymmetricDecryption(true);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/CertifyOperation.java

@@ -39,8 +39,8 @@ import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction;
 import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
@@ -62,9 +62,9 @@ import org.sufficientlysecure.keychain.util.Passphrase;
  */
 public class CertifyOperation extends BaseOperation<CertifyActionsParcel> {
 
-    public CertifyOperation(Context context, ProviderHelper providerHelper, Progressable progressable, AtomicBoolean
+    public CertifyOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable, AtomicBoolean
             cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
     @NonNull
@@ -81,7 +81,7 @@ public class CertifyOperation extends BaseOperation<CertifyActionsParcel> {
 
             log.add(LogType.MSG_CRT_MASTER_FETCH, 1);
 
-            CachedPublicKeyRing cachedPublicKeyRing = mProviderHelper.getCachedPublicKeyRing(masterKeyId);
+            CachedPublicKeyRing cachedPublicKeyRing = mDatabaseInteractor.getCachedPublicKeyRing(masterKeyId);
             Passphrase passphrase;
 
             switch (cachedPublicKeyRing.getSecretKeyType(masterKeyId)) {
@@ -121,7 +121,7 @@ public class CertifyOperation extends BaseOperation<CertifyActionsParcel> {
 
             // Get actual secret key
             CanonicalizedSecretKeyRing secretKeyRing =
-                    mProviderHelper.getCanonicalizedSecretKeyRing(parcel.mMasterKeyId);
+                    mDatabaseInteractor.getCanonicalizedSecretKeyRing(parcel.mMasterKeyId);
             certificationKey = secretKeyRing.getSecretKey();
 
             log.add(LogType.MSG_CRT_UNLOCK, 1);
@@ -165,7 +165,7 @@ public class CertifyOperation extends BaseOperation<CertifyActionsParcel> {
                 }
 
                 CanonicalizedPublicKeyRing publicRing =
-                        mProviderHelper.getCanonicalizedPublicKeyRing(action.mMasterKeyId);
+                        mDatabaseInteractor.getCanonicalizedPublicKeyRing(action.mMasterKeyId);
 
                 PgpCertifyOperation op = new PgpCertifyOperation();
                 PgpCertifyResult result = op.certify(certificationKey, publicRing,
@@ -206,7 +206,7 @@ public class CertifyOperation extends BaseOperation<CertifyActionsParcel> {
         // these variables are used inside the following loop, but they need to be created only once
         UploadOperation uploadOperation = null;
         if (parcel.keyServerUri != null) {
-            uploadOperation = new UploadOperation(mContext, mProviderHelper, mProgressable, mCancelled);
+            uploadOperation = new UploadOperation(mContext, mDatabaseInteractor, mProgressable, mCancelled);
         }
 
         // Write all certified keys into the database
@@ -222,8 +222,8 @@ public class CertifyOperation extends BaseOperation<CertifyActionsParcel> {
             log.add(LogType.MSG_CRT_SAVE, 2,
                     KeyFormattingUtils.convertKeyIdToHex(certifiedKey.getMasterKeyId()));
             // store the signed key in our local cache
-            mProviderHelper.clearLog();
+            mDatabaseInteractor.clearLog();
-            SaveKeyringResult result = mProviderHelper.savePublicKeyRing(certifiedKey);
+            SaveKeyringResult result = mDatabaseInteractor.savePublicKeyRing(certifiedKey);
 
             if (uploadOperation != null) {
                 UploadKeyringParcel uploadInput =

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ChangeUnlockOperation.java

@@ -29,7 +29,7 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKeyRing;
 import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
@@ -38,8 +38,8 @@ import org.sufficientlysecure.keychain.util.ProgressScaler;
 
 public class ChangeUnlockOperation extends BaseOperation<ChangeUnlockParcel> {
 
-    public ChangeUnlockOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+    public ChangeUnlockOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     @NonNull
@@ -63,7 +63,7 @@ public class ChangeUnlockOperation extends BaseOperation<ChangeUnlockParcel> {
                             KeyFormattingUtils.convertKeyIdToHex(unlockParcel.mMasterKeyId));
 
                     CanonicalizedSecretKeyRing secRing =
-                            mProviderHelper.getCanonicalizedSecretKeyRing(unlockParcel.mMasterKeyId);
+                            mDatabaseInteractor.getCanonicalizedSecretKeyRing(unlockParcel.mMasterKeyId);
                     modifyResult = keyOperations.modifyKeyRingPassphrase(secRing, cryptoInput, unlockParcel);
 
                     if (modifyResult.isPending()) {
@@ -71,7 +71,7 @@ public class ChangeUnlockOperation extends BaseOperation<ChangeUnlockParcel> {
                         log.add(modifyResult, 1);
                         return new EditKeyResult(log, modifyResult);
                     }
-            } catch (ProviderHelper.NotFoundException e) {
+            } catch (DatabaseInteractor.NotFoundException e) {
                 log.add(OperationResult.LogType.MSG_ED_ERROR_KEY_NOT_FOUND, 2);
                 return new EditKeyResult(EditKeyResult.RESULT_ERROR, log, null);
             }
@@ -90,7 +90,7 @@ public class ChangeUnlockOperation extends BaseOperation<ChangeUnlockParcel> {
         // It's a success, so this must be non-null now
         UncachedKeyRing ring = modifyResult.getRing();
 
-        SaveKeyringResult saveResult = mProviderHelper
+        SaveKeyringResult saveResult = mDatabaseInteractor
                 .saveSecretKeyRing(ring, new ProgressScaler(mProgressable, 70, 95, 100));
         log.add(saveResult, 1);
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ConsolidateOperation.java

@@ -24,15 +24,15 @@ import android.support.annotation.NonNull;
 
 import org.sufficientlysecure.keychain.operations.results.ConsolidateResult;
 import org.sufficientlysecure.keychain.pgp.Progressable;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ConsolidateInputParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 
 public class ConsolidateOperation extends BaseOperation<ConsolidateInputParcel> {
 
-    public ConsolidateOperation(Context context, ProviderHelper providerHelper, Progressable
+    public ConsolidateOperation(Context context, DatabaseInteractor databaseInteractor, Progressable
             progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     @NonNull
@@ -40,9 +40,9 @@ public class ConsolidateOperation extends BaseOperation<ConsolidateInputParcel>
     public ConsolidateResult execute(ConsolidateInputParcel consolidateInputParcel,
                                      CryptoInputParcel cryptoInputParcel) {
         if (consolidateInputParcel.mConsolidateRecovery) {
-            return mProviderHelper.consolidateDatabaseStep2(mProgressable);
+            return mDatabaseInteractor.consolidateDatabaseStep2(mProgressable);
         } else {
-            return mProviderHelper.consolidateDatabaseStep1(mProgressable);
+            return mDatabaseInteractor.consolidateDatabaseStep1(mProgressable);
         }
     }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/DeleteOperation.java

@@ -27,7 +27,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult.LogTyp
 import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
 import org.sufficientlysecure.keychain.service.DeleteKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -43,8 +43,8 @@ import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
  */
 public class DeleteOperation extends BaseOperation<DeleteKeyringParcel> {
 
-    public DeleteOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+    public DeleteOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     @NonNull
@@ -81,7 +81,7 @@ public class DeleteOperation extends BaseOperation<DeleteKeyringParcel> {
                 cancelled = true;
                 break;
             }
-            int count = mProviderHelper.getContentResolver().delete(
+            int count = mDatabaseInteractor.getContentResolver().delete(
                     KeyRingData.buildPublicKeyRingUri(masterKeyId), null, null
             );
             if (count > 0) {
@@ -95,7 +95,7 @@ public class DeleteOperation extends BaseOperation<DeleteKeyringParcel> {
 
         if (isSecret && success > 0) {
             log.add(LogType.MSG_DEL_CONSOLIDATE, 1);
-            ConsolidateResult sub = mProviderHelper.consolidateDatabaseStep1(mProgressable);
+            ConsolidateResult sub = mDatabaseInteractor.consolidateDatabaseStep1(mProgressable);
             log.add(sub, 2);
         }
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/EditKeyOperation.java

@@ -35,10 +35,9 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKeyRing;
 import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
-import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.service.UploadKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -58,9 +57,9 @@ import org.sufficientlysecure.keychain.util.ProgressScaler;
  */
 public class EditKeyOperation extends BaseOperation<SaveKeyringParcel> {
 
-    public EditKeyOperation(Context context, ProviderHelper providerHelper,
+    public EditKeyOperation(Context context, DatabaseInteractor databaseInteractor,
                             Progressable progressable, AtomicBoolean cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
     /**
@@ -95,7 +94,7 @@ public class EditKeyOperation extends BaseOperation<SaveKeyringParcel> {
                     log.add(LogType.MSG_ED_FETCHING, 1,
                             KeyFormattingUtils.convertKeyIdToHex(saveParcel.mMasterKeyId));
                     CanonicalizedSecretKeyRing secRing =
-                            mProviderHelper.getCanonicalizedSecretKeyRing(saveParcel.mMasterKeyId);
+                            mDatabaseInteractor.getCanonicalizedSecretKeyRing(saveParcel.mMasterKeyId);
 
                     modifyResult = keyOperations.modifySecretKeyRing(secRing, cryptoInput, saveParcel);
                     if (modifyResult.isPending()) {
@@ -148,7 +147,7 @@ public class EditKeyOperation extends BaseOperation<SaveKeyringParcel> {
                     new UploadKeyringParcel(saveParcel.getUploadKeyserver(), keyringBytes);
 
             UploadResult uploadResult =
-                    new UploadOperation(mContext, mProviderHelper, mProgressable, mCancelled)
+                    new UploadOperation(mContext, mDatabaseInteractor, mProgressable, mCancelled)
                             .execute(exportKeyringParcel, cryptoInput);
 
             log.add(uploadResult, 2);
@@ -162,7 +161,7 @@ public class EditKeyOperation extends BaseOperation<SaveKeyringParcel> {
         }
 
         // Save the new keyring.
-        SaveKeyringResult saveResult = mProviderHelper
+        SaveKeyringResult saveResult = mDatabaseInteractor
                 .saveSecretKeyRing(ring, new ProgressScaler(mProgressable, 60, 95, 100));
         log.add(saveResult, 1);
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/ImportOperation.java

@@ -39,7 +39,7 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -86,14 +86,14 @@ public class ImportOperation extends BaseOperation<ImportKeyringParcel> {
 
     public static final String CACHE_FILE_NAME = "key_import.pcl";
 
-    public ImportOperation(Context context, ProviderHelper providerHelper, Progressable
+    public ImportOperation(Context context, DatabaseInteractor databaseInteractor, Progressable
             progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
-    public ImportOperation(Context context, ProviderHelper providerHelper,
+    public ImportOperation(Context context, DatabaseInteractor databaseInteractor,
                            Progressable progressable, AtomicBoolean cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
     // Overloaded functions for using progressable supplied in constructor during import
@@ -314,15 +314,15 @@ public class ImportOperation extends BaseOperation<ImportKeyringParcel> {
                 SaveKeyringResult result;
                 // synchronizing prevents https://github.com/open-keychain/open-keychain/issues/1221
                 // and https://github.com/open-keychain/open-keychain/issues/1480
-                synchronized (mProviderHelper) {
+                synchronized (mDatabaseInteractor) {
-                    mProviderHelper.clearLog();
+                    mDatabaseInteractor.clearLog();
                     ProgressScaler progressScaler = new ProgressScaler(progressable, (int) (position * progSteps),
                             (int) ((position + 1) * progSteps), 100);
                     if (key.isSecret()) {
-                        result = mProviderHelper.saveSecretKeyRing(key, progressScaler,
+                        result = mDatabaseInteractor.saveSecretKeyRing(key, progressScaler,
                                 canKeyRings, skipSave);
                     } else {
-                        result = mProviderHelper.savePublicKeyRing(key, progressScaler,
+                        result = mDatabaseInteractor.savePublicKeyRing(key, progressScaler,
                                 entry.mExpectedFingerprint, canKeyRings, skipSave);
                     }
                 }
@@ -343,7 +343,7 @@ public class ImportOperation extends BaseOperation<ImportKeyringParcel> {
                         // synonymous to isDownloadFromKeyserver.
                         // If no byte data was supplied, import from keyserver took place
                         // this prevents file imports being noted as keyserver imports
-                        mProviderHelper.renewKeyLastUpdatedTime(key.getMasterKeyId(),
+                        mDatabaseInteractor.renewKeyLastUpdatedTime(key.getMasterKeyId(),
                                 GregorianCalendar.getInstance().getTimeInMillis(),
                                 TimeUnit.MILLISECONDS);
                     }
@@ -365,8 +365,8 @@ public class ImportOperation extends BaseOperation<ImportKeyringParcel> {
         if (!skipSave && (secret > 0)) {
             setPreventCancel();
             ConsolidateResult result;
-            synchronized (mProviderHelper) {
+            synchronized (mDatabaseInteractor) {
-                result = mProviderHelper.consolidateDatabaseStep1(progressable);
+                result = mDatabaseInteractor.consolidateDatabaseStep1(progressable);
             }
             log.add(result, 1);
         }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/InputDataOperation.java

@@ -50,7 +50,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult.Operat
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
 import org.sufficientlysecure.keychain.pgp.Progressable;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.provider.TemporaryFileProvider;
 import org.sufficientlysecure.keychain.service.InputDataParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -71,8 +71,8 @@ public class InputDataOperation extends BaseOperation<InputDataParcel> {
 
     private final byte[] buf = new byte[256];
 
-    public InputDataOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+    public InputDataOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     Uri mSignedDataUri;
@@ -101,7 +101,7 @@ public class InputDataOperation extends BaseOperation<InputDataParcel> {
             log.add(LogType.MSG_DATA_OPENPGP, 1);
 
             PgpDecryptVerifyOperation op =
-                    new PgpDecryptVerifyOperation(mContext, mProviderHelper, mProgressable);
+                    new PgpDecryptVerifyOperation(mContext, mDatabaseInteractor, mProgressable);
 
             decryptInput.setInputUri(input.getInputUri());
 
@@ -269,7 +269,7 @@ public class InputDataOperation extends BaseOperation<InputDataParcel> {
                 decryptInput.setDetachedSignature(detachedSig.toByteArray());
 
                 PgpDecryptVerifyOperation op =
-                        new PgpDecryptVerifyOperation(mContext, mProviderHelper, mProgressable);
+                        new PgpDecryptVerifyOperation(mContext, mDatabaseInteractor, mProgressable);
                 DecryptVerifyResult verifyResult = op.execute(decryptInput, cryptoInput);
 
                 log.addByMerge(verifyResult, 4);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/KeybaseVerificationOperation.java

@@ -36,7 +36,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
 import org.sufficientlysecure.keychain.pgp.Progressable;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.KeybaseVerificationParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
@@ -59,9 +59,9 @@ import de.measite.minidns.record.TXT;
 
 public class KeybaseVerificationOperation extends BaseOperation<KeybaseVerificationParcel> {
 
-    public KeybaseVerificationOperation(Context context, ProviderHelper providerHelper,
+    public KeybaseVerificationOperation(Context context, DatabaseInteractor databaseInteractor,
                                         Progressable progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     @NonNull
@@ -147,7 +147,7 @@ public class KeybaseVerificationOperation extends BaseOperation<KeybaseVerificat
                 }
             }
 
-            PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(mContext, mProviderHelper, mProgressable);
+            PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(mContext, mDatabaseInteractor, mProgressable);
 
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(messageBytes)
                     .setRequiredSignerFingerprint(requiredFingerprint);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/PromoteKeyOperation.java

@@ -33,8 +33,8 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKey;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.PromoteKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
@@ -49,9 +49,9 @@ import org.sufficientlysecure.keychain.util.ProgressScaler;
  */
 public class PromoteKeyOperation extends BaseOperation<PromoteKeyringParcel> {
 
-    public PromoteKeyOperation(Context context, ProviderHelper providerHelper,
+    public PromoteKeyOperation(Context context, DatabaseInteractor databaseInteractor,
                                Progressable progressable, AtomicBoolean cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
     @NonNull
@@ -70,7 +70,7 @@ public class PromoteKeyOperation extends BaseOperation<PromoteKeyringParcel> {
                 log.add(LogType.MSG_PR_FETCHING, 1,
                         KeyFormattingUtils.convertKeyIdToHex(promoteKeyringParcel.mKeyRingId));
                 CanonicalizedPublicKeyRing pubRing =
-                        mProviderHelper.getCanonicalizedPublicKeyRing(promoteKeyringParcel.mKeyRingId);
+                        mDatabaseInteractor.getCanonicalizedPublicKeyRing(promoteKeyringParcel.mKeyRingId);
 
                 if (promoteKeyringParcel.mSubKeyIds == null) {
                     log.add(LogType.MSG_PR_ALL, 1);
@@ -114,7 +114,7 @@ public class PromoteKeyOperation extends BaseOperation<PromoteKeyringParcel> {
         setPreventCancel();
 
         // Save the new keyring.
-        SaveKeyringResult saveResult = mProviderHelper
+        SaveKeyringResult saveResult = mDatabaseInteractor
                 .saveSecretKeyRing(promotedRing, new ProgressScaler(mProgressable, 60, 95, 100));
         log.add(saveResult, 1);
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/RevokeOperation.java

@@ -32,7 +32,7 @@ import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.RevokeKeyringParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -41,8 +41,8 @@ import org.sufficientlysecure.keychain.util.Log;
 
 public class RevokeOperation extends BaseOperation<RevokeKeyringParcel> {
 
-    public RevokeOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+    public RevokeOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     @NonNull
@@ -62,7 +62,7 @@ public class RevokeOperation extends BaseOperation<RevokeKeyringParcel> {
         try {
 
             Uri secretUri = KeychainContract.KeyRings.buildUnifiedKeyRingUri(masterKeyId);
-            CachedPublicKeyRing keyRing = mProviderHelper.getCachedPublicKeyRing(secretUri);
+            CachedPublicKeyRing keyRing = mDatabaseInteractor.getCachedPublicKeyRing(secretUri);
 
             // check if this is a master secret key we can work with
             switch (keyRing.getSecretKeyType(masterKeyId)) {
@@ -81,7 +81,7 @@ public class RevokeOperation extends BaseOperation<RevokeKeyringParcel> {
             saveKeyringParcel.mRevokeSubKeys.add(masterKeyId);
 
             EditKeyResult revokeAndUploadResult = new EditKeyOperation(mContext,
-                    mProviderHelper, mProgressable, mCancelled).execute(saveKeyringParcel, cryptoInputParcel);
+                    mDatabaseInteractor, mProgressable, mCancelled).execute(saveKeyringParcel, cryptoInputParcel);
 
             if (revokeAndUploadResult.isPending()) {
                 return revokeAndUploadResult;
@@ -97,7 +97,7 @@ public class RevokeOperation extends BaseOperation<RevokeKeyringParcel> {
                 return new RevokeResult(RevokeResult.RESULT_ERROR, log, masterKeyId);
             }
 
-        } catch (PgpKeyNotFoundException | ProviderHelper.NotFoundException e) {
+        } catch (PgpKeyNotFoundException | DatabaseInteractor.NotFoundException e) {
             Log.e(Constants.TAG, "could not find key to revoke", e);
             log.add(OperationResult.LogType.MSG_REVOKE_ERROR_KEY_FAIL, 1);
             return new RevokeResult(RevokeResult.RESULT_ERROR, log, masterKeyId);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/SignEncryptOperation.java

@@ -33,7 +33,7 @@ import org.sufficientlysecure.keychain.pgp.PgpSignEncryptOperation;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel.SecurityTokenSignOperationsBuilder;
@@ -55,9 +55,9 @@ import java.util.concurrent.atomic.AtomicBoolean;
  */
 public class SignEncryptOperation extends BaseOperation<SignEncryptParcel> {
 
-    public SignEncryptOperation(Context context, ProviderHelper providerHelper,
+    public SignEncryptOperation(Context context, DatabaseInteractor databaseInteractor,
                                 Progressable progressable, AtomicBoolean cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
 
@@ -81,7 +81,7 @@ public class SignEncryptOperation extends BaseOperation<SignEncryptParcel> {
         if (data.getSignatureMasterKeyId() != Constants.key.none
                 && data.getSignatureSubKeyId() == null) {
             try {
-                long signKeyId = mProviderHelper.getCachedPublicKeyRing(
+                long signKeyId = mDatabaseInteractor.getCachedPublicKeyRing(
                         data.getSignatureMasterKeyId()).getSecretSignId();
                 data.setSignatureSubKeyId(signKeyId);
             } catch (PgpKeyNotFoundException e) {
@@ -96,7 +96,7 @@ public class SignEncryptOperation extends BaseOperation<SignEncryptParcel> {
                 return new SignEncryptResult(SignEncryptResult.RESULT_CANCELLED, log, results);
             }
 
-            PgpSignEncryptOperation op = new PgpSignEncryptOperation(mContext, mProviderHelper,
+            PgpSignEncryptOperation op = new PgpSignEncryptOperation(mContext, mDatabaseInteractor,
                     new ProgressScaler(mProgressable, 100 * count / total, 100 * ++count / total, 100), mCancelled);
             PgpSignEncryptInputParcel inputParcel = new PgpSignEncryptInputParcel(input.getData());
             if (inputBytes != null) {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/UploadOperation.java

@@ -37,7 +37,7 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.UploadKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
@@ -58,9 +58,9 @@ import java.util.concurrent.atomic.AtomicBoolean;
  */
 public class UploadOperation extends BaseOperation<UploadKeyringParcel> {
 
-    public UploadOperation(Context context, ProviderHelper providerHelper,
+    public UploadOperation(Context context, DatabaseInteractor databaseInteractor,
                            Progressable progressable, AtomicBoolean cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
     @NonNull
@@ -120,7 +120,7 @@ public class UploadOperation extends BaseOperation<UploadKeyringParcel> {
 
             if (hasMasterKeyId) {
                 log.add(LogType.MSG_UPLOAD_KEY, 0, KeyFormattingUtils.convertKeyIdToHex(uploadInput.mMasterKeyId));
-                return mProviderHelper.getCanonicalizedPublicKeyRing(uploadInput.mMasterKeyId);
+                return mDatabaseInteractor.getCanonicalizedPublicKeyRing(uploadInput.mMasterKeyId);
             }
 
             CanonicalizedKeyRing canonicalizedRing =
@@ -132,7 +132,7 @@ public class UploadOperation extends BaseOperation<UploadKeyringParcel> {
             log.add(LogType.MSG_UPLOAD_KEY, 0, KeyFormattingUtils.convertKeyIdToHex(canonicalizedRing.getMasterKeyId()));
             return (CanonicalizedPublicKeyRing) canonicalizedRing;
 
-        } catch (ProviderHelper.NotFoundException e) {
+        } catch (DatabaseInteractor.NotFoundException e) {
             log.add(LogType.MSG_UPLOAD_ERROR_NOT_FOUND, 1);
             return null;
         } catch (IOException | PgpGeneralException e) {

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

@@ -47,7 +47,7 @@ import org.bouncycastle.openpgp.operator.jcajce.SessionKeySecretKeyDecryptorBuil
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.Passphrase;
@@ -127,7 +127,7 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey {
      * passphrase in the process.
      *
      * This method can potentially take a LONG time (i.e. seconds), so it should only
-     * ever be called by {@link ProviderHelper} for the purpose of caching its output
+     * ever be called by {@link DatabaseInteractor} for the purpose of caching its output
      * in the database.
      */
     public SecretKeyType getSecretKeyTypeSuperExpensive() {

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

@@ -27,8 +27,8 @@ import org.openintents.openpgp.util.OpenPgpUtils;
 import org.openintents.openpgp.util.OpenPgpUtils.UserId;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.util.Log;
 
 /**
@@ -37,7 +37,7 @@ import org.sufficientlysecure.keychain.util.Log;
  */
 public class OpenPgpSignatureResultBuilder {
     // injected
-    private final ProviderHelper mProviderHelper;
+    private final DatabaseInteractor mDatabaseInteractor;
 
     // OpenPgpSignatureResult
     private String mPrimaryUserId;
@@ -57,8 +57,8 @@ public class OpenPgpSignatureResultBuilder {
     private String mSenderAddress;
     private Date mSignatureTimestamp;
 
-    public OpenPgpSignatureResultBuilder(ProviderHelper providerHelper) {
+    public OpenPgpSignatureResultBuilder(DatabaseInteractor databaseInteractor) {
-        this.mProviderHelper = providerHelper;
+        this.mDatabaseInteractor = databaseInteractor;
     }
 
     public void setPrimaryUserId(String userId) {
@@ -127,7 +127,7 @@ public class OpenPgpSignatureResultBuilder {
 
         try {
             ArrayList<String> allUserIds = signingRing.getUnorderedUserIds();
-            ArrayList<String> confirmedUserIds = mProviderHelper.getConfirmedUserIds(signingRing.getMasterKeyId());
+            ArrayList<String> confirmedUserIds = mDatabaseInteractor.getConfirmedUserIds(signingRing.getMasterKeyId());
             setUserIds(allUserIds, confirmedUserIds);
 
             if (mSenderAddress != null) {

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

@@ -72,7 +72,7 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
@@ -87,8 +87,8 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
 
     public static final int PROGRESS_STRIDE_MILLISECONDS = 200;
 
-    public PgpDecryptVerifyOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+    public PgpDecryptVerifyOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     /** Decrypts and/or verifies data based on parameters of PgpDecryptVerifyInputParcel. */
@@ -355,7 +355,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
             plainFact = fact;
         }
 
-        PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mProviderHelper, input.getSenderAddress());
+        PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mDatabaseInteractor, input.getSenderAddress());
         if (signatureChecker.initializeOnePassSignature(dataChunk, log, indent +1)) {
             dataChunk = plainFact.nextObject();
         }
@@ -594,7 +594,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
                 CachedPublicKeyRing cachedPublicKeyRing;
                 try {
                     // get actual keyring object based on master key id
-                    cachedPublicKeyRing = mProviderHelper.getCachedPublicKeyRing(
+                    cachedPublicKeyRing = mDatabaseInteractor.getCachedPublicKeyRing(
                             KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(subKeyId)
                     );
                     long masterKeyId = cachedPublicKeyRing.getMasterKeyId();
@@ -622,7 +622,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
                     }
 
                     // get actual subkey which has been used for this encryption packet
-                    CanonicalizedSecretKeyRing canonicalizedSecretKeyRing = mProviderHelper
+                    CanonicalizedSecretKeyRing canonicalizedSecretKeyRing = mDatabaseInteractor
                             .getCanonicalizedSecretKeyRing(masterKeyId);
                     CanonicalizedSecretKey candidateDecryptionKey = canonicalizedSecretKeyRing.getSecretKey(subKeyId);
 
@@ -668,7 +668,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
                     encryptedDataAsymmetric = encData;
                     decryptionKey = candidateDecryptionKey;
 
-                } catch (PgpKeyNotFoundException | ProviderHelper.NotFoundException e) {
+                } catch (PgpKeyNotFoundException | DatabaseInteractor.NotFoundException e) {
                     // continue with the next packet in the while loop
                     log.add(LogType.MSG_DC_ASKIP_NO_KEY, indent + 1);
                     continue;
@@ -879,7 +879,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
         updateProgress(R.string.progress_processing_signature, 60, 100);
         JcaSkipMarkerPGPObjectFactory pgpFact = new JcaSkipMarkerPGPObjectFactory(aIn);
 
-        PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mProviderHelper, input.getSenderAddress());
+        PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mDatabaseInteractor, input.getSenderAddress());
 
         Object o = pgpFact.nextObject();
         if (!signatureChecker.initializeSignature(o, log, indent+1)) {
@@ -934,7 +934,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
             o = pgpFact.nextObject();
         }
 
-        PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mProviderHelper, input.getSenderAddress());
+        PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mDatabaseInteractor, input.getSenderAddress());
 
         if ( ! signatureChecker.initializeSignature(o, log, indent+1)) {
             log.add(LogType.MSG_DC_ERROR_INVALID_DATA, 0);

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

@@ -45,7 +45,7 @@ import org.sufficientlysecure.keychain.operations.results.PgpSignEncryptResult;
 import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
@@ -98,12 +98,12 @@ public class PgpSignEncryptOperation extends BaseOperation<PgpSignEncryptInputPa
         }
     }
 
-    public PgpSignEncryptOperation(Context context, ProviderHelper providerHelper, Progressable progressable, AtomicBoolean cancelled) {
+    public PgpSignEncryptOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable, AtomicBoolean cancelled) {
-        super(context, providerHelper, progressable, cancelled);
+        super(context, databaseInteractor, progressable, cancelled);
     }
 
-    public PgpSignEncryptOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
+    public PgpSignEncryptOperation(Context context, DatabaseInteractor databaseInteractor, Progressable progressable) {
-        super(context, providerHelper, progressable);
+        super(context, databaseInteractor, progressable);
     }
 
     @NonNull
@@ -223,7 +223,7 @@ public class PgpSignEncryptOperation extends BaseOperation<PgpSignEncryptInputPa
                 long signingSubKeyId = data.getSignatureSubKeyId();
 
                 CanonicalizedSecretKeyRing signingKeyRing =
-                        mProviderHelper.getCanonicalizedSecretKeyRing(signingMasterKeyId);
+                        mDatabaseInteractor.getCanonicalizedSecretKeyRing(signingMasterKeyId);
                 signingKey = signingKeyRing.getSecretKey(data.getSignatureSubKeyId());
 
                 if (input.getAllowedKeyIds() != null) {
@@ -248,7 +248,7 @@ public class PgpSignEncryptOperation extends BaseOperation<PgpSignEncryptInputPa
                     return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log);
                 }
 
-                switch (mProviderHelper.getCachedPublicKeyRing(signingMasterKeyId).getSecretKeyType(signingSubKeyId)) {
+                switch (mDatabaseInteractor.getCachedPublicKeyRing(signingMasterKeyId).getSecretKeyType(signingSubKeyId)) {
                     case DIVERT_TO_CARD:
                     case PASSPHRASE_EMPTY: {
                         if (!signingKey.unlock(new Passphrase())) {
@@ -292,7 +292,7 @@ public class PgpSignEncryptOperation extends BaseOperation<PgpSignEncryptInputPa
 
                 }
 
-            } catch (ProviderHelper.NotFoundException e) {
+            } catch (DatabaseInteractor.NotFoundException e) {
                 log.add(LogType.MSG_PSE_ERROR_SIGN_KEY, indent);
                 return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log);
             } catch (PgpGeneralException e) {
@@ -337,7 +337,7 @@ public class PgpSignEncryptOperation extends BaseOperation<PgpSignEncryptInputPa
                 // Asymmetric encryption
                 for (long id : data.getEncryptionMasterKeyIds()) {
                     try {
-                        CanonicalizedPublicKeyRing keyRing = mProviderHelper.getCanonicalizedPublicKeyRing(
+                        CanonicalizedPublicKeyRing keyRing = mDatabaseInteractor.getCanonicalizedPublicKeyRing(
                                 KeyRings.buildUnifiedKeyRingUri(id));
                         Set<Long> encryptSubKeyIds = keyRing.getEncryptIds();
                         for (Long subKeyId : encryptSubKeyIds) {
@@ -356,7 +356,7 @@ public class PgpSignEncryptOperation extends BaseOperation<PgpSignEncryptInputPa
                             log.add(LogType.MSG_PSE_ERROR_REVOKED_OR_EXPIRED, indent);
                             return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log);
                         }
-                    } catch (ProviderHelper.NotFoundException e) {
+                    } catch (DatabaseInteractor.NotFoundException e) {
                         log.add(LogType.MSG_PSE_KEY_UNKNOWN, indent + 1,
                                 KeyFormattingUtils.convertKeyIdToHex(id));
                         return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log);

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

@@ -37,7 +37,7 @@ import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.util.Log;
 
 
@@ -55,12 +55,12 @@ class PgpSignatureChecker {
     PGPOnePassSignature onePassSignature;
     PGPSignature signature;
 
-    ProviderHelper mProviderHelper;
+    DatabaseInteractor mDatabaseInteractor;
 
-    PgpSignatureChecker(ProviderHelper providerHelper, String senderAddress) {
+    PgpSignatureChecker(DatabaseInteractor databaseInteractor, String senderAddress) {
-        mProviderHelper = providerHelper;
+        mDatabaseInteractor = databaseInteractor;
 
-        signatureResultBuilder = new OpenPgpSignatureResultBuilder(providerHelper);
+        signatureResultBuilder = new OpenPgpSignatureResultBuilder(databaseInteractor);
         signatureResultBuilder.setSenderAddress(senderAddress);
     }
 
@@ -150,7 +150,7 @@ class PgpSignatureChecker {
         for (int i = 0; i < sigList.size(); ++i) {
             try {
                 long sigKeyId = sigList.get(i).getKeyID();
-                CanonicalizedPublicKeyRing signingRing = mProviderHelper.getCanonicalizedPublicKeyRing(
+                CanonicalizedPublicKeyRing signingRing = mDatabaseInteractor.getCanonicalizedPublicKeyRing(
                         KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(sigKeyId)
                 );
                 CanonicalizedPublicKey keyCandidate = signingRing.getPublicKey(sigKeyId);
@@ -161,7 +161,7 @@ class PgpSignatureChecker {
                 signingKey = keyCandidate;
                 onePassSignature = sigList.get(i);
                 return;
-            } catch (ProviderHelper.NotFoundException e) {
+            } catch (DatabaseInteractor.NotFoundException e) {
                 Log.d(Constants.TAG, "key not found, trying next signature...");
             }
         }
@@ -173,7 +173,7 @@ class PgpSignatureChecker {
         for (int i = 0; i < sigList.size(); ++i) {
             try {
                 long sigKeyId = sigList.get(i).getKeyID();
-                CanonicalizedPublicKeyRing signingRing = mProviderHelper.getCanonicalizedPublicKeyRing(
+                CanonicalizedPublicKeyRing signingRing = mDatabaseInteractor.getCanonicalizedPublicKeyRing(
                         KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(sigKeyId)
                 );
                 CanonicalizedPublicKey keyCandidate = signingRing.getPublicKey(sigKeyId);
@@ -184,7 +184,7 @@ class PgpSignatureChecker {
                 signingKey = keyCandidate;
                 signature = sigList.get(i);
                 return;
-            } catch (ProviderHelper.NotFoundException e) {
+            } catch (DatabaseInteractor.NotFoundException e) {
                 Log.d(Constants.TAG, "key not found, trying next signature...");
             }
         }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/CachedPublicKeyRing.java

@@ -27,7 +27,7 @@ import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.util.Log;
 
 /** This implementation of KeyRing provides a cached view of PublicKeyRing
@@ -48,21 +48,21 @@ import org.sufficientlysecure.keychain.util.Log;
  */
 public class CachedPublicKeyRing extends KeyRing {
 
-    final ProviderHelper mProviderHelper;
+    final DatabaseInteractor mDatabaseInteractor;
     final Uri mUri;
 
-    public CachedPublicKeyRing(ProviderHelper providerHelper, Uri uri) {
+    public CachedPublicKeyRing(DatabaseInteractor databaseInteractor, Uri uri) {
-        mProviderHelper = providerHelper;
+        mDatabaseInteractor = databaseInteractor;
         mUri = uri;
     }
 
     @Override
     public long getMasterKeyId() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
-                    KeychainContract.KeyRings.MASTER_KEY_ID, ProviderHelper.FIELD_TYPE_INTEGER);
+                    KeychainContract.KeyRings.MASTER_KEY_ID, DatabaseInteractor.FIELD_TYPE_INTEGER);
             return (Long) data;
-        } catch (ProviderHelper.NotFoundException e) {
+        } catch (DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -85,10 +85,10 @@ public class CachedPublicKeyRing extends KeyRing {
 
     public byte[] getFingerprint() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
-                    KeychainContract.KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
+                    KeychainContract.KeyRings.FINGERPRINT, DatabaseInteractor.FIELD_TYPE_BLOB);
             return (byte[]) data;
-        } catch (ProviderHelper.NotFoundException e) {
+        } catch (DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -96,11 +96,11 @@ public class CachedPublicKeyRing extends KeyRing {
     @Override
     public String getPrimaryUserId() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeychainContract.KeyRings.USER_ID,
-                    ProviderHelper.FIELD_TYPE_STRING);
+                    DatabaseInteractor.FIELD_TYPE_STRING);
             return (String) data;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -111,22 +111,22 @@ public class CachedPublicKeyRing extends KeyRing {
 
     public String getName() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeyRings.NAME,
-                    ProviderHelper.FIELD_TYPE_STRING);
+                    DatabaseInteractor.FIELD_TYPE_STRING);
             return (String) data;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
 
     public String getEmail() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeyRings.EMAIL,
-                    ProviderHelper.FIELD_TYPE_STRING);
+                    DatabaseInteractor.FIELD_TYPE_STRING);
             return (String) data;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -134,11 +134,11 @@ public class CachedPublicKeyRing extends KeyRing {
 
     public String getComment() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeyRings.COMMENT,
-                    ProviderHelper.FIELD_TYPE_STRING);
+                    DatabaseInteractor.FIELD_TYPE_STRING);
             return (String) data;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -146,11 +146,11 @@ public class CachedPublicKeyRing extends KeyRing {
     @Override
     public boolean isRevoked() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeychainContract.KeyRings.IS_REVOKED,
-                    ProviderHelper.FIELD_TYPE_INTEGER);
+                    DatabaseInteractor.FIELD_TYPE_INTEGER);
             return (Long) data > 0;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -158,11 +158,11 @@ public class CachedPublicKeyRing extends KeyRing {
     @Override
     public boolean canCertify() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeychainContract.KeyRings.HAS_CERTIFY,
-                    ProviderHelper.FIELD_TYPE_NULL);
+                    DatabaseInteractor.FIELD_TYPE_NULL);
             return !((Boolean) data);
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -170,11 +170,11 @@ public class CachedPublicKeyRing extends KeyRing {
     @Override
     public long getEncryptId() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeyRings.HAS_ENCRYPT,
-                    ProviderHelper.FIELD_TYPE_INTEGER);
+                    DatabaseInteractor.FIELD_TYPE_INTEGER);
             return (Long) data;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -192,11 +192,11 @@ public class CachedPublicKeyRing extends KeyRing {
      */
     public long getSecretSignId() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeyRings.HAS_SIGN,
-                    ProviderHelper.FIELD_TYPE_INTEGER);
+                    DatabaseInteractor.FIELD_TYPE_INTEGER);
             return (Long) data;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
@@ -204,35 +204,35 @@ public class CachedPublicKeyRing extends KeyRing {
     @Override
     public int getVerified() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeychainContract.KeyRings.VERIFIED,
-                    ProviderHelper.FIELD_TYPE_INTEGER);
+                    DatabaseInteractor.FIELD_TYPE_INTEGER);
             return ((Long) data).intValue();
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
 
     public boolean hasAnySecret() throws PgpKeyNotFoundException {
         try {
-            Object data = mProviderHelper.getGenericData(mUri,
+            Object data = mDatabaseInteractor.getGenericData(mUri,
                     KeychainContract.KeyRings.HAS_ANY_SECRET,
-                    ProviderHelper.FIELD_TYPE_INTEGER);
+                    DatabaseInteractor.FIELD_TYPE_INTEGER);
             return (Long) data > 0;
-        } catch(ProviderHelper.NotFoundException e) {
+        } catch(DatabaseInteractor.NotFoundException e) {
             throw new PgpKeyNotFoundException(e);
         }
     }
 
     private Cursor getSubkeys() throws PgpKeyNotFoundException {
         Uri keysUri = KeychainContract.Keys.buildKeysUri(extractOrGetMasterKeyId());
-        return mProviderHelper.getContentResolver().query(keysUri, null, null, null, null);
+        return mDatabaseInteractor.getContentResolver().query(keysUri, null, null, null, null);
     }
 
     public SecretKeyType getSecretKeyType(long keyId) throws NotFoundException {
-        Object data = mProviderHelper.getGenericData(Keys.buildKeysUri(mUri),
+        Object data = mDatabaseInteractor.getGenericData(Keys.buildKeysUri(mUri),
                 KeyRings.HAS_SECRET,
-                ProviderHelper.FIELD_TYPE_INTEGER,
+                DatabaseInteractor.FIELD_TYPE_INTEGER,
                 KeyRings.KEY_ID + " = " + Long.toString(keyId));
         return SecretKeyType.fromNum(((Long) data).intValue());
     }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/DatabaseInteractor.java

@@ -91,21 +91,21 @@ import java.util.concurrent.TimeUnit;
  * the lifetime of the executing ProviderHelper object unless the resetLog()
  * method is called to start a new one specifically.
  */
-public class ProviderHelper {
+public class DatabaseInteractor {
     private final Context mContext;
     private final ContentResolver mContentResolver;
     private OperationLog mLog;
     private int mIndent;
 
-    public ProviderHelper(Context context) {
+    public DatabaseInteractor(Context context) {
         this(context, new OperationLog(), 0);
     }
 
-    public ProviderHelper(Context context, OperationLog log) {
+    public DatabaseInteractor(Context context, OperationLog log) {
         this(context, log, 0);
     }
 
-    public ProviderHelper(Context context, OperationLog log, int indent) {
+    public DatabaseInteractor(Context context, OperationLog log, int indent) {
         mContext = context;
         mContentResolver = context.getContentResolver();
         mLog = log;
@@ -1335,7 +1335,7 @@ public class ProviderHelper {
     private ConsolidateResult consolidateDatabaseStep2(
             OperationLog log, int indent, Progressable progress, boolean recovery) {
 
-        synchronized (ProviderHelper.class) {
+        synchronized (DatabaseInteractor.class) {
             if (mConsolidateCritical) {
                 log.add(LogType.MSG_CON_ERROR_CONCURRENT, indent);
                 return new ConsolidateResult(ConsolidateResult.RESULT_ERROR, log);
@@ -1540,7 +1540,7 @@ public class ProviderHelper {
     public String getKeyRingAsArmoredString(Uri uri)
             throws NotFoundException, IOException, PgpGeneralException {
         byte[] data = (byte[]) getGenericData(
-                uri, KeyRingData.KEY_RING_DATA, ProviderHelper.FIELD_TYPE_BLOB);
+                uri, KeyRingData.KEY_RING_DATA, DatabaseInteractor.FIELD_TYPE_BLOB);
         return getKeyRingAsArmoredString(data);
     }
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java

@@ -66,7 +66,7 @@ import org.sufficientlysecure.keychain.provider.ApiDataAccessObject;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.ApiAccounts;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.remote.OpenPgpServiceKeyIdExtractor.KeyIdResult;
 import org.sufficientlysecure.keychain.service.BackupKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -88,7 +88,7 @@ public class OpenPgpService extends Service {
             Collections.unmodifiableList(Arrays.asList(3, 4, 5, 6, 7, 8, 9, 10, 11));
 
     private ApiPermissionHelper mApiPermissionHelper;
-    private ProviderHelper mProviderHelper;
+    private DatabaseInteractor mDatabaseInteractor;
     private ApiDataAccessObject mApiDao;
     private OpenPgpServiceKeyIdExtractor mKeyIdExtractor;
     private ApiPendingIntentFactory mApiPendingIntentFactory;
@@ -97,7 +97,7 @@ public class OpenPgpService extends Service {
     public void onCreate() {
         super.onCreate();
         mApiPermissionHelper = new ApiPermissionHelper(this, new ApiDataAccessObject(this));
-        mProviderHelper = new ProviderHelper(this);
+        mDatabaseInteractor = new DatabaseInteractor(this);
         mApiDao = new ApiDataAccessObject(this);
 
         mApiPendingIntentFactory = new ApiPendingIntentFactory(getBaseContext());
@@ -135,7 +135,7 @@ public class OpenPgpService extends Service {
 
                 // get first usable subkey capable of signing
                 try {
-                    long signSubKeyId = mProviderHelper.getCachedPublicKeyRing(
+                    long signSubKeyId = mDatabaseInteractor.getCachedPublicKeyRing(
                             pgpData.getSignatureMasterKeyId()).getSecretSignId();
                     pgpData.setSignatureSubKeyId(signSubKeyId);
                 } catch (PgpKeyNotFoundException e) {
@@ -167,7 +167,7 @@ public class OpenPgpService extends Service {
             }
 
             // execute PGP operation!
-            PgpSignEncryptOperation pse = new PgpSignEncryptOperation(this, new ProviderHelper(this), null);
+            PgpSignEncryptOperation pse = new PgpSignEncryptOperation(this, new DatabaseInteractor(this), null);
             PgpSignEncryptResult pgpResult = pse.execute(pseInput, inputParcel, inputData, outputStream);
 
             if (pgpResult.isPending()) {
@@ -254,7 +254,7 @@ public class OpenPgpService extends Service {
 
                     // get first usable subkey capable of signing
                     try {
-                        long signSubKeyId = mProviderHelper.getCachedPublicKeyRing(
+                        long signSubKeyId = mDatabaseInteractor.getCachedPublicKeyRing(
                                 pgpData.getSignatureMasterKeyId()).getSecretSignId();
                         pgpData.setSignatureSubKeyId(signSubKeyId);
                     } catch (PgpKeyNotFoundException e) {
@@ -294,7 +294,7 @@ public class OpenPgpService extends Service {
                         new Passphrase(data.getCharArrayExtra(OpenPgpApi.EXTRA_PASSPHRASE));
             }
 
-            PgpSignEncryptOperation op = new PgpSignEncryptOperation(this, mProviderHelper, null);
+            PgpSignEncryptOperation op = new PgpSignEncryptOperation(this, mDatabaseInteractor, null);
 
             // execute PGP operation!
             PgpSignEncryptResult pgpResult = op.execute(pseInput, inputParcel, inputData, outputStream);
@@ -356,7 +356,7 @@ public class OpenPgpService extends Service {
             byte[] detachedSignature = data.getByteArrayExtra(OpenPgpApi.EXTRA_DETACHED_SIGNATURE);
             String senderAddress = data.getStringExtra(OpenPgpApi.EXTRA_SENDER_ADDRESS);
 
-            PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(this, mProviderHelper, progressable);
+            PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(this, mDatabaseInteractor, progressable);
 
             long inputLength = data.getLongExtra(OpenPgpApi.EXTRA_DATA_LENGTH, InputData.UNKNOWN_FILESIZE);
             InputData inputData = new InputData(inputStream, inputLength);
@@ -526,7 +526,7 @@ public class OpenPgpService extends Service {
             try {
                 // try to find key, throws NotFoundException if not in db!
                 CanonicalizedPublicKeyRing keyRing =
-                        mProviderHelper.getCanonicalizedPublicKeyRing(
+                        mDatabaseInteractor.getCanonicalizedPublicKeyRing(
                                 KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(masterKeyId));
 
                 Intent result = new Intent();
@@ -555,7 +555,7 @@ public class OpenPgpService extends Service {
                         mApiPendingIntentFactory.createShowKeyPendingIntent(data, masterKeyId));
 
                 return result;
-            } catch (ProviderHelper.NotFoundException e) {
+            } catch (DatabaseInteractor.NotFoundException e) {
                 // If keys are not in db we return an additional PendingIntent
                 // to retrieve the missing key
                 Intent result = new Intent();
@@ -630,7 +630,7 @@ public class OpenPgpService extends Service {
             // the backup code is cached in CryptoInputParcelCacheService, now we can proceed
 
             BackupKeyringParcel input = new BackupKeyringParcel(masterKeyIds, backupSecret, true, enableAsciiArmorOutput, null);
-            BackupOperation op = new BackupOperation(this, mProviderHelper, null);
+            BackupOperation op = new BackupOperation(this, mDatabaseInteractor, null);
             ExportResult pgpResult = op.execute(input, inputParcel, outputStream);
 
             if (pgpResult.success()) {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/RequestKeyPermissionPresenter.java

@@ -16,8 +16,8 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.ApiDataAccessObject;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.remote.ApiPermissionHelper;
 import org.sufficientlysecure.keychain.remote.ApiPermissionHelper.WrongPackageCertificateException;
 import org.sufficientlysecure.keychain.util.Log;
@@ -33,26 +33,26 @@ class RequestKeyPermissionPresenter {
 
     private String packageName;
     private long masterKeyId;
-    private ProviderHelper providerHelper;
+    private DatabaseInteractor databaseInteractor;
 
 
     static RequestKeyPermissionPresenter createRequestKeyPermissionPresenter(Context context) {
         PackageManager packageManager = context.getPackageManager();
         ApiDataAccessObject apiDataAccessObject = new ApiDataAccessObject(context);
         ApiPermissionHelper apiPermissionHelper = new ApiPermissionHelper(context, apiDataAccessObject);
-        ProviderHelper providerHelper = new ProviderHelper(context);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(context);
 
         return new RequestKeyPermissionPresenter(context, apiDataAccessObject, apiPermissionHelper, packageManager,
-                providerHelper);
+                databaseInteractor);
     }
 
     private RequestKeyPermissionPresenter(Context context, ApiDataAccessObject apiDataAccessObject,
-            ApiPermissionHelper apiPermissionHelper, PackageManager packageManager, ProviderHelper providerHelper) {
+            ApiPermissionHelper apiPermissionHelper, PackageManager packageManager, DatabaseInteractor databaseInteractor) {
         this.context = context;
         this.apiDataAccessObject = apiDataAccessObject;
         this.apiPermissionHelper = apiPermissionHelper;
         this.packageManager = packageManager;
-        this.providerHelper = providerHelper;
+        this.databaseInteractor = databaseInteractor;
     }
 
     void setView(RequestKeyPermissionMvpView view) {
@@ -101,7 +101,7 @@ class RequestKeyPermissionPresenter {
         CachedPublicKeyRing publicFallbackRing = null;
         for (long candidateSubKeyId : subKeyIds) {
             try {
-                CachedPublicKeyRing cachedPublicKeyRing = providerHelper.getCachedPublicKeyRing(
+                CachedPublicKeyRing cachedPublicKeyRing = databaseInteractor.getCachedPublicKeyRing(
                         KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(candidateSubKeyId)
                 );
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainService.java

@@ -48,7 +48,7 @@ import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyOperation;
 import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel;
 import org.sufficientlysecure.keychain.pgp.Progressable;
 import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ServiceProgressHandler.MessageStatus;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.util.Log;
@@ -112,35 +112,35 @@ public class KeychainService extends Service implements Progressable {
                 // just for brevity
                 KeychainService outerThis = KeychainService.this;
                 if (inputParcel instanceof SignEncryptParcel) {
-                    op = new SignEncryptOperation(outerThis, new ProviderHelper(outerThis), outerThis, mActionCanceled);
+                    op = new SignEncryptOperation(outerThis, new DatabaseInteractor(outerThis), outerThis, mActionCanceled);
                 } else if (inputParcel instanceof PgpDecryptVerifyInputParcel) {
-                    op = new PgpDecryptVerifyOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new PgpDecryptVerifyOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else if (inputParcel instanceof SaveKeyringParcel) {
-                    op = new EditKeyOperation(outerThis, new ProviderHelper(outerThis), outerThis, mActionCanceled);
+                    op = new EditKeyOperation(outerThis, new DatabaseInteractor(outerThis), outerThis, mActionCanceled);
                 } else if (inputParcel instanceof  ChangeUnlockParcel) {
-                    op = new ChangeUnlockOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new ChangeUnlockOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else if (inputParcel instanceof RevokeKeyringParcel) {
-                    op = new RevokeOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new RevokeOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else if (inputParcel instanceof CertifyActionsParcel) {
-                    op = new CertifyOperation(outerThis, new ProviderHelper(outerThis), outerThis, mActionCanceled);
+                    op = new CertifyOperation(outerThis, new DatabaseInteractor(outerThis), outerThis, mActionCanceled);
                 } else if (inputParcel instanceof DeleteKeyringParcel) {
-                    op = new DeleteOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new DeleteOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else if (inputParcel instanceof PromoteKeyringParcel) {
-                    op = new PromoteKeyOperation(outerThis, new ProviderHelper(outerThis), outerThis, mActionCanceled);
+                    op = new PromoteKeyOperation(outerThis, new DatabaseInteractor(outerThis), outerThis, mActionCanceled);
                 } else if (inputParcel instanceof ImportKeyringParcel) {
-                    op = new ImportOperation(outerThis, new ProviderHelper(outerThis), outerThis, mActionCanceled);
+                    op = new ImportOperation(outerThis, new DatabaseInteractor(outerThis), outerThis, mActionCanceled);
                 } else if (inputParcel instanceof BackupKeyringParcel) {
-                    op = new BackupOperation(outerThis, new ProviderHelper(outerThis), outerThis, mActionCanceled);
+                    op = new BackupOperation(outerThis, new DatabaseInteractor(outerThis), outerThis, mActionCanceled);
                 } else if (inputParcel instanceof UploadKeyringParcel) {
-                    op = new UploadOperation(outerThis, new ProviderHelper(outerThis), outerThis, mActionCanceled);
+                    op = new UploadOperation(outerThis, new DatabaseInteractor(outerThis), outerThis, mActionCanceled);
                 } else if (inputParcel instanceof ConsolidateInputParcel) {
-                    op = new ConsolidateOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new ConsolidateOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else if (inputParcel instanceof KeybaseVerificationParcel) {
-                    op = new KeybaseVerificationOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new KeybaseVerificationOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else if (inputParcel instanceof InputDataParcel) {
-                    op = new InputDataOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new InputDataOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else if (inputParcel instanceof BenchmarkInputParcel) {
-                    op = new BenchmarkOperation(outerThis, new ProviderHelper(outerThis), outerThis);
+                    op = new BenchmarkOperation(outerThis, new DatabaseInteractor(outerThis), outerThis);
                 } else {
                     throw new AssertionError("Unrecognized input parcel in KeychainService!");
                 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeyserverSyncAdapterService.java

@@ -36,7 +36,7 @@ import org.sufficientlysecure.keychain.operations.ImportOperation;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.network.NetworkReceiver;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.OrbotRequiredDialogActivity;
@@ -320,7 +320,7 @@ public class KeyserverSyncAdapterService extends Service {
     private ImportKeyResult directUpdate(Context context, ArrayList<ParcelableKeyRing> keyList,
                                          CryptoInputParcel cryptoInputParcel) {
         Log.d(Constants.TAG, "Starting normal update");
-        ImportOperation importOp = new ImportOperation(context, new ProviderHelper(context), null);
+        ImportOperation importOp = new ImportOperation(context, new DatabaseInteractor(context), null);
         return importOp.execute(
                 new ImportKeyringParcel(keyList,
                         Preferences.getPreferences(context).getPreferredKeyserver()),
@@ -380,7 +380,7 @@ public class KeyserverSyncAdapterService extends Service {
                         new OperationResult.OperationLog());
             }
             ImportKeyResult result =
-                    new ImportOperation(context, new ProviderHelper(context), null, mCancelled)
+                    new ImportOperation(context, new DatabaseInteractor(context), null, mCancelled)
                             .execute(
                                     new ImportKeyringParcel(
                                             keyWrapper,

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/PassphraseCacheService.java

@@ -41,7 +41,7 @@ import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey.SecretKeyType;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.Passphrase;
 import org.sufficientlysecure.keychain.util.Preferences;
@@ -224,7 +224,7 @@ public class PassphraseCacheService extends Service {
     /**
      * Internal implementation to get cached passphrase.
      */
-    private Passphrase getCachedPassphraseImpl(long masterKeyId, long subKeyId) throws ProviderHelper.NotFoundException {
+    private Passphrase getCachedPassphraseImpl(long masterKeyId, long subKeyId) throws DatabaseInteractor.NotFoundException {
         // on "none" key, just do nothing
         if (masterKeyId == Constants.key.none) {
             return null;
@@ -245,16 +245,16 @@ public class PassphraseCacheService extends Service {
                 + masterKeyId + ", subKeyId " + subKeyId);
 
         // get the type of key (from the database)
-        CachedPublicKeyRing keyRing = new ProviderHelper(this).getCachedPublicKeyRing(masterKeyId);
+        CachedPublicKeyRing keyRing = new DatabaseInteractor(this).getCachedPublicKeyRing(masterKeyId);
         SecretKeyType keyType = keyRing.getSecretKeyType(subKeyId);
 
         switch (keyType) {
             case PASSPHRASE_EMPTY:
                 return new Passphrase("");
             case UNAVAILABLE:
-                throw new ProviderHelper.NotFoundException("secret key for this subkey is not available");
+                throw new DatabaseInteractor.NotFoundException("secret key for this subkey is not available");
             case GNU_DUMMY:
-                throw new ProviderHelper.NotFoundException("secret key for stripped subkey is not available");
+                throw new DatabaseInteractor.NotFoundException("secret key for stripped subkey is not available");
         }
 
         // get cached passphrase
@@ -398,7 +398,7 @@ public class PassphraseCacheService extends Service {
                         bundle.putParcelable(EXTRA_PASSPHRASE, passphrase);
                         msg.setData(bundle);
                     }
-                } catch (ProviderHelper.NotFoundException e) {
+                } catch (DatabaseInteractor.NotFoundException e) {
                     Log.e(Constants.TAG, "PassphraseCacheService: Passphrase for unknown key was requested!");
                     msg.what = MSG_PASSPHRASE_CACHE_GET_KEY_NOT_FOUND;
                 }

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

@@ -35,7 +35,7 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.experimental.SentenceConfirm;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.ui.base.LoaderFragment;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.Log;
@@ -213,7 +213,7 @@ public class CertifyFingerprintFragment extends LoaderFragment implements
     private void certify(Uri dataUri) {
         long keyId = 0;
         try {
-            keyId = new ProviderHelper(getActivity())
+            keyId = new DatabaseInteractor(getActivity())
                     .getCachedPublicKeyRing(dataUri)
                     .extractOrGetMasterKeyId();
         } catch (PgpKeyNotFoundException e) {

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

@@ -20,37 +20,25 @@ package org.sufficientlysecure.keychain.ui;
 
 import android.app.Activity;
 import android.content.Intent;
-import android.database.Cursor;
-import android.database.MatrixCursor;
 import android.graphics.PorterDuff;
-import android.net.Uri;
 import android.os.Bundle;
-import android.os.Parcel;
-import android.support.v4.app.LoaderManager;
-import android.support.v4.content.CursorLoader;
-import android.support.v4.content.Loader;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
 import android.widget.CheckBox;
 import android.widget.ImageView;
-import android.widget.ListView;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.CertifyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
-import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
-import org.sufficientlysecure.keychain.ui.adapter.MultiUserIdsAdapter;
 import org.sufficientlysecure.keychain.ui.base.CachingCryptoOperationFragment;
 import org.sufficientlysecure.keychain.ui.util.Notify;
 import org.sufficientlysecure.keychain.ui.util.FormattingUtils;
@@ -80,7 +68,7 @@ public class CertifyKeyFragment
                     .getLongExtra(CertifyKeyActivity.EXTRA_CERTIFY_KEY_ID, Constants.key.none);
             if (certifyKeyId != Constants.key.none) {
                 try {
-                    CachedPublicKeyRing key = (new ProviderHelper(getActivity()))
+                    CachedPublicKeyRing key = (new DatabaseInteractor(getActivity()))
                             .getCachedPublicKeyRing(certifyKeyId);
                     if (key.canCertify()) {
                         mCertifyKeySpinner.setPreSelectedKeyId(certifyKeyId);

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

@@ -30,7 +30,7 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.securitytoken.KeyFormat;
 import org.sufficientlysecure.keychain.ui.base.BaseSecurityTokenActivity;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
@@ -180,7 +180,7 @@ public class CreateKeyActivity extends BaseSecurityTokenActivity {
         if (containsKeys(mScannedFingerprints)) {
             try {
                 long masterKeyId = KeyFormattingUtils.getKeyIdFromFingerprint(mScannedFingerprints);
-                CachedPublicKeyRing ring = new ProviderHelper(this).getCachedPublicKeyRing(masterKeyId);
+                CachedPublicKeyRing ring = new DatabaseInteractor(this).getCachedPublicKeyRing(masterKeyId);
                 ring.getMasterKeyId();
 
                 Intent intent = new Intent(this, ViewKeyActivity.class);

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

@@ -41,14 +41,12 @@ import org.sufficientlysecure.keychain.operations.results.EditKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.operations.results.UploadResult;
 import org.sufficientlysecure.keychain.pgp.KeyRing;
-import org.sufficientlysecure.keychain.pgp.PgpSecurityConstants;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
-import org.sufficientlysecure.keychain.service.SaveKeyringParcel.Algorithm;
 import org.sufficientlysecure.keychain.service.UploadKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.ui.CreateKeyActivity.FragAction;
@@ -413,7 +411,7 @@ public class CreateKeyFinalFragment extends Fragment {
         CreateKeyActivity activity = (CreateKeyActivity) getActivity();
 
         final SaveKeyringParcel changeKeyringParcel;
-        CachedPublicKeyRing key = (new ProviderHelper(activity))
+        CachedPublicKeyRing key = (new DatabaseInteractor(activity))
                 .getCachedPublicKeyRing(saveKeyResult.mMasterKeyId);
         try {
             changeKeyringParcel = new SaveKeyringParcel(key.getMasterKeyId(), key.getFingerprint());

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

@@ -47,7 +47,7 @@ import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
@@ -192,7 +192,7 @@ public abstract class DecryptFragment extends Fragment implements LoaderManager.
         try {
 
             Intent viewKeyIntent = new Intent(getActivity(), ViewKeyActivity.class);
-            long masterKeyId = new ProviderHelper(getActivity()).getCachedPublicKeyRing(
+            long masterKeyId = new DatabaseInteractor(getActivity()).getCachedPublicKeyRing(
                     KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(keyId)
             ).getMasterKeyId();
             viewKeyIntent.setData(KeyRings.buildGenericKeyRingUri(masterKeyId));

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

@@ -35,16 +35,14 @@ import android.widget.AdapterView;
 import android.widget.Spinner;
 import android.widget.TextView;
 
-import org.openintents.openpgp.util.OpenPgpUtils;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.keyimport.ParcelableHkpKeyserver;
 import org.sufficientlysecure.keychain.operations.results.DeleteResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.operations.results.RevokeResult;
-import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.DeleteKeyringParcel;
 import org.sufficientlysecure.keychain.service.RevokeKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -91,13 +89,13 @@ public class DeleteKeyDialogActivity extends FragmentActivity {
         if (mMasterKeyIds.length == 1 && mHasSecret) {
             // if mMasterKeyIds.length == 0 we let the DeleteOperation respond
             try {
-                HashMap<String, Object> data = new ProviderHelper(this).getUnifiedData(
+                HashMap<String, Object> data = new DatabaseInteractor(this).getUnifiedData(
                         mMasterKeyIds[0], new String[]{
                                 KeychainContract.KeyRings.NAME,
                                 KeychainContract.KeyRings.IS_REVOKED
                         }, new int[]{
-                                ProviderHelper.FIELD_TYPE_STRING,
+                                DatabaseInteractor.FIELD_TYPE_STRING,
-                                ProviderHelper.FIELD_TYPE_INTEGER
+                                DatabaseInteractor.FIELD_TYPE_INTEGER
                         }
                 );
 
@@ -114,7 +112,7 @@ public class DeleteKeyDialogActivity extends FragmentActivity {
                 } else {
                     showRevokeDeleteDialog(name);
                 }
-            } catch (ProviderHelper.NotFoundException e) {
+            } catch (DatabaseInteractor.NotFoundException e) {
                 Log.e(Constants.TAG,
                         "Secret key to delete not found at DeleteKeyDialogActivity for "
                                 + mMasterKeyIds[0], e);
@@ -271,13 +269,13 @@ public class DeleteKeyDialogActivity extends FragmentActivity {
                 long masterKeyId = masterKeyIds[0];
 
                 try {
-                    HashMap<String, Object> data = new ProviderHelper(activity).getUnifiedData(
+                    HashMap<String, Object> data = new DatabaseInteractor(activity).getUnifiedData(
                             masterKeyId, new String[]{
                                     KeychainContract.KeyRings.NAME,
                                     KeychainContract.KeyRings.HAS_ANY_SECRET
                             }, new int[]{
-                                    ProviderHelper.FIELD_TYPE_STRING,
+                                    DatabaseInteractor.FIELD_TYPE_STRING,
-                                    ProviderHelper.FIELD_TYPE_INTEGER
+                                    DatabaseInteractor.FIELD_TYPE_INTEGER
                             }
                     );
                     String name;
@@ -295,7 +293,7 @@ public class DeleteKeyDialogActivity extends FragmentActivity {
                     } else {
                         mMainMessage.setText(getString(R.string.public_key_deletetion_confirmation, name));
                     }
-                } catch (ProviderHelper.NotFoundException e) {
+                } catch (DatabaseInteractor.NotFoundException e) {
                     dismiss();
                     return null;
                 }

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

@@ -51,8 +51,8 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.service.UploadKeyringParcel;
 import org.sufficientlysecure.keychain.ui.adapter.UserIdsAdapter;
@@ -170,7 +170,7 @@ public class EditIdentitiesFragment extends Fragment
         try {
             Uri secretUri = KeychainContract.KeyRings.buildUnifiedKeyRingUri(mDataUri);
             CachedPublicKeyRing keyRing =
-                    new ProviderHelper(getActivity()).getCachedPublicKeyRing(secretUri);
+                    new DatabaseInteractor(getActivity()).getCachedPublicKeyRing(secretUri);
             long masterKeyId = keyRing.getMasterKeyId();
 
             // check if this is a master secret key we can work with

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

@@ -50,8 +50,8 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel.SubkeyChange;
@@ -203,7 +203,7 @@ public class EditKeyFragment extends QueueingCryptoOperationFragment<SaveKeyring
         try {
             Uri secretUri = KeychainContract.KeyRings.buildUnifiedKeyRingUri(mDataUri);
             CachedPublicKeyRing keyRing =
-                    new ProviderHelper(getActivity()).getCachedPublicKeyRing(secretUri);
+                    new DatabaseInteractor(getActivity()).getCachedPublicKeyRing(secretUri);
             long masterKeyId = keyRing.getMasterKeyId();
 
             // check if this is a master secret key we can work with

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

@@ -23,7 +23,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ViewAnimator;
 
-import com.tokenautocomplete.TokenCompleteTextView;
 import com.tokenautocomplete.TokenCompleteTextView.TokenListener;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
@@ -31,8 +30,8 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.ui.adapter.KeyAdapter.KeyItem;
 import org.sufficientlysecure.keychain.ui.widget.EncryptKeyCompletionView;
 import org.sufficientlysecure.keychain.ui.widget.KeySpinner;
@@ -46,7 +45,7 @@ import java.util.List;
 
 public class EncryptModeAsymmetricFragment extends EncryptModeFragment {
 
-    ProviderHelper mProviderHelper;
+    DatabaseInteractor mDatabaseInteractor;
 
     private KeySpinner mSignKeySpinner;
     private EncryptKeyCompletionView mEncryptKeyView;
@@ -115,7 +114,7 @@ public class EncryptModeAsymmetricFragment extends EncryptModeFragment {
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
-        mProviderHelper = new ProviderHelper(getActivity());
+        mDatabaseInteractor = new DatabaseInteractor(getActivity());
 
         // preselect keys given, from state or arguments
         if (savedInstanceState == null) {
@@ -135,7 +134,7 @@ public class EncryptModeAsymmetricFragment extends EncryptModeFragment {
     private void preselectKeys(Long signatureKeyId, long[] encryptionKeyIds) {
         if (signatureKeyId != null) {
             try {
-                CachedPublicKeyRing keyring = mProviderHelper.getCachedPublicKeyRing(
+                CachedPublicKeyRing keyring = mDatabaseInteractor.getCachedPublicKeyRing(
                         KeyRings.buildUnifiedKeyRingUri(signatureKeyId));
                 if (keyring.hasAnySecret()) {
                     mSignKeySpinner.setPreSelectedKeyId(signatureKeyId);
@@ -149,7 +148,7 @@ public class EncryptModeAsymmetricFragment extends EncryptModeFragment {
             for (long preselectedId : encryptionKeyIds) {
                 try {
                     CanonicalizedPublicKeyRing ring =
-                            mProviderHelper.getCanonicalizedPublicKeyRing(preselectedId);
+                            mDatabaseInteractor.getCanonicalizedPublicKeyRing(preselectedId);
                     mEncryptKeyView.addObject(new KeyItem(ring));
                 } catch (NotFoundException e) {
                     Log.e(Constants.TAG, "key not found!", e);

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

@@ -59,7 +59,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.BenchmarkInputParcel;
 import org.sufficientlysecure.keychain.service.ConsolidateInputParcel;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
@@ -486,8 +486,8 @@ public class KeyListFragment extends RecyclerFragment<KeySectionedListAdapter>
             return;
         }
 
-        ProviderHelper providerHelper = new ProviderHelper(activity);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(activity);
-        Cursor cursor = providerHelper.getContentResolver().query(
+        Cursor cursor = databaseInteractor.getContentResolver().query(
                 KeyRings.buildUnifiedKeyRingsUri(), new String[]{
                         KeyRings.FINGERPRINT
                 }, null, null, null

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

@@ -31,7 +31,6 @@ import android.support.v4.app.FragmentActivity;
 import android.support.v7.app.AlertDialog;
 import android.text.Editable;
 import android.text.InputType;
-import android.text.Layout;
 import android.text.TextWatcher;
 import android.text.method.PasswordTransformationMethod;
 import android.view.ContextThemeWrapper;
@@ -59,8 +58,8 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
@@ -113,7 +112,7 @@ public class PassphraseDialogActivity extends FragmentActivity {
         // handle empty passphrases by directly returning an empty crypto input parcel
         try {
             CachedPublicKeyRing pubRing =
-                    new ProviderHelper(this).getCachedPublicKeyRing(requiredInput.getMasterKeyId());
+                    new DatabaseInteractor(this).getCachedPublicKeyRing(requiredInput.getMasterKeyId());
             // use empty passphrase for empty passphrase
             if (pubRing.getSecretKeyType(requiredInput.getSubKeyId()) == SecretKeyType.PASSPHRASE_EMPTY) {
                 // also return passphrase back to activity
@@ -232,7 +231,7 @@ public class PassphraseDialogActivity extends FragmentActivity {
                 try {
                     long subKeyId = mRequiredInput.getSubKeyId();
 
-                    ProviderHelper helper = new ProviderHelper(activity);
+                    DatabaseInteractor helper = new DatabaseInteractor(activity);
                     CachedPublicKeyRing cachedPublicKeyRing = helper.getCachedPublicKeyRing(
                             KeychainContract.KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(subKeyId));
                     // yes the inner try/catch block is necessary, otherwise the final variable
@@ -267,7 +266,7 @@ public class PassphraseDialogActivity extends FragmentActivity {
                             throw new AssertionError("Unhandled SecretKeyType (should not happen)");
                     }
 
-                } catch (PgpKeyNotFoundException | ProviderHelper.NotFoundException e) {
+                } catch (PgpKeyNotFoundException | DatabaseInteractor.NotFoundException e) {
                     alert.setTitle(R.string.title_key_not_found);
                     alert.setMessage(getString(R.string.key_not_found, mRequiredInput.getSubKeyId()));
                     alert.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@@ -458,7 +457,7 @@ public class PassphraseDialogActivity extends FragmentActivity {
 
                                 Long subKeyId = mRequiredInput.getSubKeyId();
                                 CanonicalizedSecretKeyRing secretKeyRing =
-                                        new ProviderHelper(getActivity()).getCanonicalizedSecretKeyRing(
+                                        new DatabaseInteractor(getActivity()).getCanonicalizedSecretKeyRing(
                                                 KeychainContract.KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(subKeyId));
                                 CanonicalizedSecretKey secretKeyToUnlock =
                                         secretKeyRing.getSecretKey(subKeyId);

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

@@ -29,7 +29,7 @@ import android.widget.ImageView;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.ui.base.BaseActivity;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.ui.util.Notify;
@@ -74,11 +74,11 @@ public class QrCodeViewActivity extends BaseActivity {
             }
         });
 
-        ProviderHelper providerHelper = new ProviderHelper(this);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(this);
         try {
-            byte[] blob = (byte[]) providerHelper.getGenericData(
+            byte[] blob = (byte[]) databaseInteractor.getGenericData(
                     KeychainContract.KeyRings.buildUnifiedKeyRingUri(dataUri),
-                    KeychainContract.KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
+                    KeychainContract.KeyRings.FINGERPRINT, DatabaseInteractor.FIELD_TYPE_BLOB);
             if (blob == null) {
                 Log.e(Constants.TAG, "key not found!");
                 Notify.create(this, R.string.error_key_not_found, Style.ERROR).show();
@@ -102,7 +102,7 @@ public class QrCodeViewActivity extends BaseActivity {
                             mQrCode.setImageBitmap(scaled);
                         }
                     });
-        } catch (ProviderHelper.NotFoundException e) {
+        } catch (DatabaseInteractor.NotFoundException e) {
             Log.e(Constants.TAG, "key not found!", e);
             Notify.create(this, R.string.error_key_not_found, Style.ERROR).show();
             ActivityCompat.finishAfterTransition(QrCodeViewActivity.this);

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

@@ -34,7 +34,7 @@ import org.sufficientlysecure.keychain.operations.ImportOperation;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.ui.base.BaseActivity;
 import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
@@ -105,8 +105,8 @@ public class SafeSlingerActivity extends BaseActivity
         // retrieve public key blob and start SafeSlinger
         Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(masterKeyId);
         try {
-            byte[] keyBlob = (byte[]) new ProviderHelper(this).getGenericData(
+            byte[] keyBlob = (byte[]) new DatabaseInteractor(this).getGenericData(
-                    uri, KeychainContract.KeyRingData.KEY_RING_DATA, ProviderHelper.FIELD_TYPE_BLOB);
+                    uri, KeychainContract.KeyRingData.KEY_RING_DATA, DatabaseInteractor.FIELD_TYPE_BLOB);
 
             Intent slingerIntent = new Intent(this, ExchangeActivity.class);
 
@@ -114,7 +114,7 @@ public class SafeSlingerActivity extends BaseActivity
             slingerIntent.putExtra(ExchangeConfig.extra.USER_DATA, keyBlob);
             slingerIntent.putExtra(ExchangeConfig.extra.HOST_NAME, Constants.SAFESLINGER_SERVER);
             startActivityForResult(slingerIntent, REQUEST_CODE_SAFE_SLINGER);
-        } catch (ProviderHelper.NotFoundException e) {
+        } catch (DatabaseInteractor.NotFoundException e) {
             Log.e(Constants.TAG, "personal key not found", e);
         }
     }

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

@@ -36,7 +36,7 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.securitytoken.KeyType;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -193,12 +193,12 @@ public class SecurityTokenOperationActivity extends BaseSecurityTokenActivity {
                     throw new IOException(getString(R.string.error_wrong_security_token));
                 }
 
-                ProviderHelper providerHelper = new ProviderHelper(this);
+                DatabaseInteractor databaseInteractor = new DatabaseInteractor(this);
                 CanonicalizedPublicKeyRing publicKeyRing;
                 try {
-                    publicKeyRing = providerHelper.getCanonicalizedPublicKeyRing(
+                    publicKeyRing = databaseInteractor.getCanonicalizedPublicKeyRing(
                             KeychainContract.KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(mRequiredInput.getMasterKeyId()));
-                } catch (ProviderHelper.NotFoundException e) {
+                } catch (DatabaseInteractor.NotFoundException e) {
                     throw new IOException("Couldn't find subkey for key to token operation.");
                 }
 
@@ -232,13 +232,13 @@ public class SecurityTokenOperationActivity extends BaseSecurityTokenActivity {
                 mSecurityTokenHelper.setPin(new Passphrase("123456"));
                 mSecurityTokenHelper.setAdminPin(new Passphrase("12345678"));
 
-                ProviderHelper providerHelper = new ProviderHelper(this);
+                DatabaseInteractor databaseInteractor = new DatabaseInteractor(this);
                 CanonicalizedSecretKeyRing secretKeyRing;
                 try {
-                    secretKeyRing = providerHelper.getCanonicalizedSecretKeyRing(
+                    secretKeyRing = databaseInteractor.getCanonicalizedSecretKeyRing(
                             KeychainContract.KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(mRequiredInput.getMasterKeyId())
                     );
-                } catch (ProviderHelper.NotFoundException e) {
+                } catch (DatabaseInteractor.NotFoundException e) {
                     throw new IOException("Couldn't find subkey for key to token operation.");
                 }
 

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

@@ -40,7 +40,7 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.ui.base.BaseActivity;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.Log;
@@ -184,8 +184,8 @@ public class ViewCertActivity extends BaseActivity
                 Intent viewIntent = new Intent(ViewCertActivity.this, ViewKeyActivity.class);
 
                 try {
-                    ProviderHelper providerHelper = new ProviderHelper(ViewCertActivity.this);
+                    DatabaseInteractor databaseInteractor = new DatabaseInteractor(ViewCertActivity.this);
-                    long signerMasterKeyId = providerHelper.getCachedPublicKeyRing(
+                    long signerMasterKeyId = databaseInteractor.getCachedPublicKeyRing(
                             KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(mCertifierKeyId)).getMasterKeyId();
                     viewIntent.setData(KeyRings.buildGenericKeyRingUri(signerMasterKeyId));
                     startActivity(viewIntent);

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

@@ -74,8 +74,8 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelper.NotFoundException;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor.NotFoundException;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
@@ -125,7 +125,7 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
     public static final String EXTRA_DISPLAY_RESULT = "display_result";
     public static final String EXTRA_LINKED_TRANSITION = "linked_transition";
 
-    ProviderHelper mProviderHelper;
+    DatabaseInteractor mDatabaseInteractor;
 
     protected Uri mDataUri;
 
@@ -185,7 +185,7 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        mProviderHelper = new ProviderHelper(this);
+        mDatabaseInteractor = new DatabaseInteractor(this);
         mImportOpHelper = new CryptoOperationHelper<>(1, this, this, null);
 
         setTitle(null);
@@ -318,7 +318,7 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
         // or start new ones.
         getSupportLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
 
-        mNfcHelper = new NfcHelper(this, mProviderHelper);
+        mNfcHelper = new NfcHelper(this, mDatabaseInteractor);
         mNfcHelper.initNfc(mDataUri);
 
         if (savedInstanceState == null && getIntent().hasExtra(EXTRA_DISPLAY_RESULT)) {
@@ -399,8 +399,8 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
             }
             case R.id.menu_key_view_refresh: {
                 try {
-                    updateFromKeyserver(mDataUri, mProviderHelper);
+                    updateFromKeyserver(mDataUri, mDatabaseInteractor);
-                } catch (ProviderHelper.NotFoundException e) {
+                } catch (DatabaseInteractor.NotFoundException e) {
                     Notify.create(this, R.string.error_key_not_found, Notify.Style.ERROR).show();
                 }
                 return true;
@@ -550,7 +550,7 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
     private boolean keyHasPassphrase() {
         try {
             SecretKeyType secretKeyType =
-                    mProviderHelper.getCachedPublicKeyRing(mMasterKeyId).getSecretKeyType(mMasterKeyId);
+                    mDatabaseInteractor.getCachedPublicKeyRing(mMasterKeyId).getSecretKeyType(mMasterKeyId);
             switch (secretKeyType) {
                 // all of these make no sense to ask
                 case PASSPHRASE_EMPTY:
@@ -666,7 +666,7 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
         try {
 
             // if the security token matches a subkey in any key
-            CachedPublicKeyRing ring = mProviderHelper.getCachedPublicKeyRing(
+            CachedPublicKeyRing ring = mDatabaseInteractor.getCachedPublicKeyRing(
                     KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(tokenId));
             byte[] candidateFp = ring.getFingerprint();
 
@@ -741,7 +741,7 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
             return;
         }
         try {
-            long keyId = new ProviderHelper(this)
+            long keyId = new DatabaseInteractor(this)
                     .getCachedPublicKeyRing(dataUri)
                     .extractOrGetMasterKeyId();
             long[] encryptionKeyIds = new long[]{keyId};
@@ -765,7 +765,7 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
     private void startSafeSlinger(Uri dataUri) {
         long keyId = 0;
         try {
-            keyId = new ProviderHelper(this)
+            keyId = new DatabaseInteractor(this)
                     .getCachedPublicKeyRing(dataUri)
                     .extractOrGetMasterKeyId();
         } catch (PgpKeyNotFoundException e) {
@@ -1118,17 +1118,17 @@ public class ViewKeyActivity extends BaseSecurityTokenActivity implements
     // CryptoOperationHelper.Callback functions
 
 
-    private void updateFromKeyserver(Uri dataUri, ProviderHelper providerHelper)
+    private void updateFromKeyserver(Uri dataUri, DatabaseInteractor databaseInteractor)
-            throws ProviderHelper.NotFoundException {
+            throws DatabaseInteractor.NotFoundException {
 
         mIsRefreshing = true;
         mRefreshItem.setEnabled(false);
         mRefreshItem.setActionView(mRefresh);
         mRefresh.startAnimation(mRotate);
 
-        byte[] blob = (byte[]) providerHelper.getGenericData(
+        byte[] blob = (byte[]) databaseInteractor.getGenericData(
                 KeychainContract.KeyRings.buildUnifiedKeyRingUri(dataUri),
-                KeychainContract.Keys.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
+                KeychainContract.Keys.FINGERPRINT, DatabaseInteractor.FIELD_TYPE_BLOB);
         String fingerprint = KeyFormattingUtils.convertFingerprintToHex(blob);
 
         ParcelableKeyRing keyEntry = new ParcelableKeyRing(fingerprint, null, null, null);

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

@@ -41,13 +41,11 @@ import android.widget.Toast;
 
 import com.astuetz.PagerSlidingTabStrip;
 
-import org.openintents.openpgp.util.OpenPgpUtils;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
-import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
 import org.sufficientlysecure.keychain.ui.base.BaseActivity;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
@@ -57,7 +55,7 @@ import org.sufficientlysecure.keychain.util.Log;
 public class ViewKeyAdvActivity extends BaseActivity implements
         LoaderCallbacks<Cursor>, OnPageChangeListener {
 
-    ProviderHelper mProviderHelper;
+    DatabaseInteractor mDatabaseInteractor;
 
     protected Uri mDataUri;
 
@@ -90,7 +88,7 @@ public class ViewKeyAdvActivity extends BaseActivity implements
             }
         });
 
-        mProviderHelper = new ProviderHelper(this);
+        mDatabaseInteractor = new DatabaseInteractor(this);
 
         mViewPager = (ViewPager) findViewById(R.id.pager);
         mSlidingTabLayout = (PagerSlidingTabStrip) findViewById(R.id.sliding_tab_layout);

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

@@ -58,7 +58,7 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.provider.TemporaryFileProvider;
 import org.sufficientlysecure.keychain.ui.base.LoaderFragment;
 import org.sufficientlysecure.keychain.ui.util.FormattingUtils;
@@ -93,8 +93,8 @@ public class ViewKeyAdvShareFragment extends LoaderFragment implements
         View root = super.onCreateView(inflater, superContainer, savedInstanceState);
         View view = inflater.inflate(R.layout.view_key_adv_share_fragment, getContainer());
 
-        ProviderHelper providerHelper = new ProviderHelper(ViewKeyAdvShareFragment.this.getActivity());
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(ViewKeyAdvShareFragment.this.getActivity());
-        mNfcHelper = new NfcHelper(getActivity(), providerHelper);
+        mNfcHelper = new NfcHelper(getActivity(), databaseInteractor);
 
         mFingerprintView = (TextView) view.findViewById(R.id.view_key_fingerprint);
         mQrCode = (ImageView) view.findViewById(R.id.view_key_qr_code);
@@ -200,7 +200,7 @@ public class ViewKeyAdvShareFragment extends LoaderFragment implements
     private void startSafeSlinger(Uri dataUri) {
         long keyId = 0;
         try {
-            keyId = new ProviderHelper(getActivity())
+            keyId = new DatabaseInteractor(getActivity())
                     .getCachedPublicKeyRing(dataUri)
                     .extractOrGetMasterKeyId();
         } catch (PgpKeyNotFoundException e) {
@@ -216,10 +216,10 @@ public class ViewKeyAdvShareFragment extends LoaderFragment implements
         if (activity == null || mFingerprint == null) {
             return;
         }
-        ProviderHelper providerHelper = new ProviderHelper(activity);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(activity);
 
         try {
-            String content = providerHelper.getKeyRingAsArmoredString(
+            String content = databaseInteractor.getKeyRingAsArmoredString(
                     KeychainContract.KeyRingData.buildPublicKeyRingUri(mDataUri));
 
             if (toClipboard) {
@@ -273,7 +273,7 @@ public class ViewKeyAdvShareFragment extends LoaderFragment implements
         } catch (PgpGeneralException | IOException e) {
             Log.e(Constants.TAG, "error processing key!", e);
             Notify.create(activity, R.string.error_key_processing, Notify.Style.ERROR).show();
-        } catch (ProviderHelper.NotFoundException e) {
+        } catch (DatabaseInteractor.NotFoundException e) {
             Log.e(Constants.TAG, "key not found!", e);
             Notify.create(activity, R.string.error_key_not_found, Notify.Style.ERROR).show();
         }
@@ -457,7 +457,7 @@ public class ViewKeyAdvShareFragment extends LoaderFragment implements
     private void uploadToKeyserver() {
         long keyId;
         try {
-            keyId = new ProviderHelper(getActivity())
+            keyId = new DatabaseInteractor(getActivity())
                     .getCachedPublicKeyRing(mDataUri)
                     .extractOrGetMasterKeyId();
         } catch (PgpKeyNotFoundException e) {

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

@@ -41,7 +41,7 @@ import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing;
 import org.sufficientlysecure.keychain.pgp.KeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.ui.ViewKeyActivity;
 import org.sufficientlysecure.keychain.ui.base.CryptoOperationHelper;
@@ -65,7 +65,7 @@ public class ImportKeysAdapter extends RecyclerView.Adapter<ImportKeysAdapter.Vi
     private List<ImportKeysListEntry> mData;
     private KeyState[] mKeyStates;
 
-    private ProviderHelper mProviderHelper;
+    private DatabaseInteractor mDatabaseInteractor;
 
     public ImportKeysAdapter(FragmentActivity activity, ImportKeysListener listener,
                              boolean nonInteractive) {
@@ -74,7 +74,7 @@ public class ImportKeysAdapter extends RecyclerView.Adapter<ImportKeysAdapter.Vi
         mListener = listener;
         mNonInteractive = nonInteractive;
 
-        mProviderHelper = new ProviderHelper(activity);
+        mDatabaseInteractor = new DatabaseInteractor(activity);
     }
 
     public void setData(List<ImportKeysListEntry> data) {
@@ -89,13 +89,13 @@ public class ImportKeysAdapter extends RecyclerView.Adapter<ImportKeysAdapter.Vi
             try {
                 KeyRing keyRing;
                 if (entry.isSecretKey()) {
-                    keyRing = mProviderHelper.getCanonicalizedSecretKeyRing(keyId);
+                    keyRing = mDatabaseInteractor.getCanonicalizedSecretKeyRing(keyId);
                 } else {
-                    keyRing = mProviderHelper.getCachedPublicKeyRing(keyId);
+                    keyRing = mDatabaseInteractor.getCachedPublicKeyRing(keyId);
                 }
                 keyState.mAlreadyPresent = true;
                 keyState.mVerified = keyRing.getVerified() > 0;
-            } catch (ProviderHelper.NotFoundException | PgpKeyNotFoundException ignored) {
+            } catch (DatabaseInteractor.NotFoundException | PgpKeyNotFoundException ignored) {
             }
 
             mKeyStates[i] = keyState;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseSecurityTokenActivity.java

@@ -38,7 +38,7 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
 import org.sufficientlysecure.keychain.service.input.RequiredInputParcel;
@@ -105,7 +105,7 @@ public abstract class BaseSecurityTokenActivity extends BaseActivity
         final long subKeyId = KeyFormattingUtils.getKeyIdFromFingerprint(mSecurityTokenFingerprints);
 
         try {
-            CachedPublicKeyRing ring = new ProviderHelper(this).getCachedPublicKeyRing(
+            CachedPublicKeyRing ring = new DatabaseInteractor(this).getCachedPublicKeyRing(
                     KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(subKeyId));
             long masterKeyId = ring.getMasterKeyId();
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdWizard.java

@@ -36,7 +36,7 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.ui.base.BaseActivity;
 import org.sufficientlysecure.keychain.util.Log;
 
@@ -58,7 +58,7 @@ public class LinkedIdWizard extends BaseActivity {
         try {
             Uri uri = getIntent().getData();
             uri = KeychainContract.KeyRings.buildUnifiedKeyRingUri(uri);
-            CachedPublicKeyRing ring = new ProviderHelper(this).getCachedPublicKeyRing(uri);
+            CachedPublicKeyRing ring = new DatabaseInteractor(this).getCachedPublicKeyRing(uri);
             if (!ring.hasAnySecret()) {
                 Log.e(Constants.TAG, "Linked Identities can only be added to secret keys!");
                 finish();

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/NfcHelper.java

@@ -36,9 +36,8 @@ import android.provider.Settings;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.ui.util.Notify;
-import org.sufficientlysecure.keychain.util.Log;
 
 import java.lang.ref.WeakReference;
 
@@ -49,7 +48,7 @@ import java.lang.ref.WeakReference;
 public class NfcHelper {
 
     private Activity mActivity;
-    private ProviderHelper mProviderHelper;
+    private DatabaseInteractor mDatabaseInteractor;
 
     /**
      * NFC: This handler receives a message from onNdefPushComplete
@@ -65,9 +64,9 @@ public class NfcHelper {
     /**
      * Initializes the NfcHelper.
      */
-    public NfcHelper(final Activity activity, final ProviderHelper providerHelper) {
+    public NfcHelper(final Activity activity, final DatabaseInteractor databaseInteractor) {
         mActivity = activity;
-        mProviderHelper = providerHelper;
+        mDatabaseInteractor = databaseInteractor;
 
         mNfcHandler = new NfcHandler(mActivity);
     }
@@ -129,11 +128,11 @@ public class NfcHelper {
                                 try {
                                     Uri blobUri =
                                             KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
-                                    mNfcKeyringBytes = (byte[]) mProviderHelper.getGenericData(
+                                    mNfcKeyringBytes = (byte[]) mDatabaseInteractor.getGenericData(
                                             blobUri,
                                             KeychainContract.KeyRingData.KEY_RING_DATA,
-                                            ProviderHelper.FIELD_TYPE_BLOB);
+                                            DatabaseInteractor.FIELD_TYPE_BLOB);
-                                } catch (ProviderHelper.NotFoundException e) {
+                                } catch (DatabaseInteractor.NotFoundException e) {
                                     Log.e(Constants.TAG, "key not found!", e);
                                 }
 

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/operations/BackupOperationTest.java

@@ -44,7 +44,7 @@ import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing.IteratorWithIOThrow;
 import org.sufficientlysecure.keychain.pgp.WrappedSignature;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.provider.TemporaryFileProvider;
 import org.sufficientlysecure.keychain.service.BackupKeyringParcel;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
@@ -135,13 +135,13 @@ public class BackupOperationTest {
 
     @Before
     public void setUp() {
-        ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
 
         // don't log verbosely here, we're not here to test imports
         ShadowLog.stream = oldShadowStream;
 
-        providerHelper.saveSecretKeyRing(mStaticRing1, new ProgressScaler());
+        databaseInteractor.saveSecretKeyRing(mStaticRing1, new ProgressScaler());
-        providerHelper.saveSecretKeyRing(mStaticRing2, new ProgressScaler());
+        databaseInteractor.saveSecretKeyRing(mStaticRing2, new ProgressScaler());
 
         // ok NOW log verbosely!
         ShadowLog.stream = System.out;
@@ -150,7 +150,7 @@ public class BackupOperationTest {
     @Test
     public void testExportAllLocalStripped() throws Exception {
         BackupOperation op = new BackupOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null);
 
         // make sure there is a local cert (so the later checks that there are none are meaningful)
         assertTrue("second keyring has local certification", checkForLocal(mStaticRing2));
@@ -249,7 +249,7 @@ public class BackupOperationTest {
         when(spyApplication.getContentResolver()).thenReturn(mockResolver);
 
         BackupOperation op = new BackupOperation(spyApplication,
-                new ProviderHelper(RuntimeEnvironment.application), null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null);
 
         BackupKeyringParcel parcel = new BackupKeyringParcel(
                 new long[] { mStaticRing1.getMasterKeyId() }, false, false, true, fakeOutputUri);
@@ -306,7 +306,7 @@ public class BackupOperationTest {
 
         { // export encrypted
             BackupOperation op = new BackupOperation(spyApplication,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             BackupKeyringParcel parcel = new BackupKeyringParcel(
                     new long[] { mStaticRing1.getMasterKeyId() }, false, true, true, fakeOutputUri);
@@ -324,7 +324,7 @@ public class BackupOperationTest {
 
         {
             PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(outStream.toByteArray());
             input.setAllowSymmetricDecryption(true);

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/operations/BenchmarkOperationTest.java

@@ -25,7 +25,7 @@ import org.junit.runner.RunWith;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.shadows.ShadowLog;
 import org.sufficientlysecure.keychain.KeychainTestRunner;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.BenchmarkInputParcel;
 
 import java.io.PrintStream;
@@ -47,7 +47,7 @@ public class BenchmarkOperationTest {
     @Test
     public void testBenchmark() throws Exception {
         BenchmarkOperation op = new BenchmarkOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null);
 
         op.execute(new BenchmarkInputParcel(), null);
     }

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/operations/CertifyOperationTest.java

@@ -35,7 +35,7 @@ import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute;
 import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
@@ -117,13 +117,13 @@ public class CertifyOperationTest {
 
     @Before
     public void setUp() throws Exception {
-        ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
 
         // don't log verbosely here, we're not here to test imports
         ShadowLog.stream = oldShadowStream;
 
-        providerHelper.saveSecretKeyRing(mStaticRing1, new ProgressScaler());
+        databaseInteractor.saveSecretKeyRing(mStaticRing1, new ProgressScaler());
-        providerHelper.savePublicKeyRing(mStaticRing2.extractPublicKeyRing(), new ProgressScaler(), null);
+        databaseInteractor.savePublicKeyRing(mStaticRing2.extractPublicKeyRing(), new ProgressScaler(), null);
 
         // ok NOW log verbosely!
         ShadowLog.stream = System.out;
@@ -132,7 +132,7 @@ public class CertifyOperationTest {
     @Test
     public void testSelfCertifyFlag() throws Exception {
 
-        CanonicalizedPublicKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+        CanonicalizedPublicKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                 .getCanonicalizedPublicKeyRing(mStaticRing1.getMasterKeyId());
         Assert.assertEquals("secret key must be marked self-certified in database",
                 // TODO this should be more correctly be VERIFIED_SELF at some point!
@@ -143,10 +143,10 @@ public class CertifyOperationTest {
     @Test
     public void testCertifyId() throws Exception {
         CertifyOperation op = new CertifyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null, null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null, null);
 
         {
-            CanonicalizedPublicKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+            CanonicalizedPublicKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                     .getCanonicalizedPublicKeyRing(mStaticRing2.getMasterKeyId());
             Assert.assertEquals("public key must not be marked verified prior to certification",
                     Certs.UNVERIFIED, ring.getVerified());
@@ -160,7 +160,7 @@ public class CertifyOperationTest {
         Assert.assertTrue("certification must succeed", result.success());
 
         {
-            CanonicalizedPublicKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+            CanonicalizedPublicKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                     .getCanonicalizedPublicKeyRing(mStaticRing2.getMasterKeyId());
             Assert.assertEquals("new key must be verified now",
                     Certs.VERIFIED_SECRET, ring.getVerified());
@@ -171,10 +171,10 @@ public class CertifyOperationTest {
     @Test
     public void testCertifyAttribute() throws Exception {
         CertifyOperation op = new CertifyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null, null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null, null);
 
         {
-            CanonicalizedPublicKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+            CanonicalizedPublicKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                     .getCanonicalizedPublicKeyRing(mStaticRing2.getMasterKeyId());
             Assert.assertEquals("public key must not be marked verified prior to certification",
                     Certs.UNVERIFIED, ring.getVerified());
@@ -188,7 +188,7 @@ public class CertifyOperationTest {
         Assert.assertTrue("certification must succeed", result.success());
 
         {
-            CanonicalizedPublicKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+            CanonicalizedPublicKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                     .getCanonicalizedPublicKeyRing(mStaticRing2.getMasterKeyId());
             Assert.assertEquals("new key must be verified now",
                     Certs.VERIFIED_SECRET, ring.getVerified());
@@ -200,7 +200,7 @@ public class CertifyOperationTest {
     @Test
     public void testCertifySelf() throws Exception {
         CertifyOperation op = new CertifyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null, null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null, null);
 
         CertifyActionsParcel actions = new CertifyActionsParcel(mStaticRing1.getMasterKeyId());
         actions.add(new CertifyAction(mStaticRing1.getMasterKeyId(),
@@ -217,7 +217,7 @@ public class CertifyOperationTest {
     public void testCertifyNonexistent() throws Exception {
 
         CertifyOperation op = new CertifyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null, null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null, null);
 
         {
             CertifyActionsParcel actions = new CertifyActionsParcel(mStaticRing1.getMasterKeyId());

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/operations/PromoteKeyOperationTest.java

@@ -38,7 +38,7 @@ import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.UncachedPublicKey;
 import org.sufficientlysecure.keychain.provider.CachedPublicKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
 import org.sufficientlysecure.keychain.service.PromoteKeyringParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
@@ -90,12 +90,12 @@ public class PromoteKeyOperationTest {
 
     @Before
     public void setUp() throws Exception {
-        ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
 
         // don't log verbosely here, we're not here to test imports
         ShadowLog.stream = oldShadowStream;
 
-        providerHelper.savePublicKeyRing(mStaticRing.extractPublicKeyRing(), new ProgressScaler(), null);
+        databaseInteractor.savePublicKeyRing(mStaticRing.extractPublicKeyRing(), new ProgressScaler(), null);
 
         // ok NOW log verbosely!
         ShadowLog.stream = System.out;
@@ -104,14 +104,14 @@ public class PromoteKeyOperationTest {
     @Test
     public void testPromote() throws Exception {
         PromoteKeyOperation op = new PromoteKeyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null, null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null, null);
 
         PromoteKeyResult result = op.execute(new PromoteKeyringParcel(mStaticRing.getMasterKeyId(), null, null), null);
 
         Assert.assertTrue("promotion must succeed", result.success());
 
         {
-            CachedPublicKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+            CachedPublicKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                     .getCachedPublicKeyRing(mStaticRing.getMasterKeyId());
             Assert.assertTrue("key must have a secret now", ring.hasAnySecret());
 
@@ -128,7 +128,7 @@ public class PromoteKeyOperationTest {
     @Test
     public void testPromoteDivert() throws Exception {
         PromoteKeyOperation op = new PromoteKeyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null, null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null, null);
 
         byte[] aid = Hex.decode("D2760001240102000000012345670000");
 
@@ -137,7 +137,7 @@ public class PromoteKeyOperationTest {
         Assert.assertTrue("promotion must succeed", result.success());
 
         {
-            CanonicalizedSecretKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+            CanonicalizedSecretKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                     .getCanonicalizedSecretKeyRing(mStaticRing.getMasterKeyId());
 
             for (CanonicalizedSecretKey key : ring.secretKeyIterator()) {
@@ -153,7 +153,7 @@ public class PromoteKeyOperationTest {
     @Test
     public void testPromoteDivertSpecific() throws Exception {
         PromoteKeyOperation op = new PromoteKeyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null, null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null, null);
 
         byte[] aid = Hex.decode("D2760001240102000000012345670000");
 
@@ -167,7 +167,7 @@ public class PromoteKeyOperationTest {
         Assert.assertTrue("promotion must succeed", result.success());
 
         {
-            CanonicalizedSecretKeyRing ring = new ProviderHelper(RuntimeEnvironment.application)
+            CanonicalizedSecretKeyRing ring = new DatabaseInteractor(RuntimeEnvironment.application)
                     .getCanonicalizedSecretKeyRing(mStaticRing.getMasterKeyId());
 
             for (CanonicalizedSecretKey key : ring.secretKeyIterator()) {

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/pgp/InputDataOperationTest.java

@@ -37,7 +37,7 @@ import org.sufficientlysecure.keychain.KeychainTestRunner;
 import org.sufficientlysecure.keychain.operations.InputDataOperation;
 import org.sufficientlysecure.keychain.operations.results.InputDataResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.provider.TemporaryFileProvider;
 import org.sufficientlysecure.keychain.service.InputDataParcel;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -126,7 +126,7 @@ public class InputDataOperationTest {
         when(spyApplication.getContentResolver()).thenReturn(mockResolver);
 
         InputDataOperation op = new InputDataOperation(spyApplication,
-                new ProviderHelper(RuntimeEnvironment.application), null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null);
 
         InputDataParcel input = new InputDataParcel(fakeInputUri, null);
 
@@ -306,7 +306,7 @@ public class InputDataOperationTest {
         when(spyApplication.getContentResolver()).thenReturn(mockResolver);
 
         InputDataOperation op = new InputDataOperation(spyApplication,
-                new ProviderHelper(RuntimeEnvironment.application), null);
+                new DatabaseInteractor(RuntimeEnvironment.application), null);
 
         InputDataParcel input = new InputDataParcel(FAKE_CONTENT_INPUT_URI_1, null);
         return op.execute(input, new CryptoInputParcel());

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/pgp/PgpEncryptDecryptTest.java

@@ -41,7 +41,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult.LogTyp
 import org.sufficientlysecure.keychain.operations.results.PgpEditKeyResult;
 import org.sufficientlysecure.keychain.operations.results.PgpSignEncryptResult;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.service.ChangeUnlockParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel.Algorithm;
@@ -149,13 +149,13 @@ public class PgpEncryptDecryptTest {
 
     @Before
     public void setUp() {
-        ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
 
         // don't log verbosely here, we're not here to test imports
         ShadowLog.stream = oldShadowStream;
 
-        providerHelper.saveSecretKeyRing(mStaticRing1, new ProgressScaler());
+        databaseInteractor.saveSecretKeyRing(mStaticRing1, new ProgressScaler());
-        providerHelper.saveSecretKeyRing(mStaticRing2, new ProgressScaler());
+        databaseInteractor.saveSecretKeyRing(mStaticRing2, new ProgressScaler());
 
         // ok NOW log verbosely!
         ShadowLog.stream = System.out;
@@ -172,7 +172,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -197,7 +197,7 @@ public class PgpEncryptDecryptTest {
             InputData data = new InputData(in, in.available());
 
             PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel();
             input.setAllowSymmetricDecryption(true);
             DecryptVerifyResult result = op.execute(
@@ -227,7 +227,7 @@ public class PgpEncryptDecryptTest {
             InputData data = new InputData(in, in.available());
 
             PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel();
             input.setAllowSymmetricDecryption(true);
             DecryptVerifyResult result = op.execute(input,
@@ -249,7 +249,7 @@ public class PgpEncryptDecryptTest {
             InputData data = new InputData(in, in.available());
 
             PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel();
             input.setAllowSymmetricDecryption(true);
             DecryptVerifyResult result = op.execute(input,
@@ -270,7 +270,7 @@ public class PgpEncryptDecryptTest {
             InputData data = new InputData(in, in.available());
 
             PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel();
             input.setAllowSymmetricDecryption(false);
             DecryptVerifyResult result = op.execute(input,
@@ -297,7 +297,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -353,7 +353,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -415,7 +415,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -472,7 +472,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -575,7 +575,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -626,11 +626,11 @@ public class PgpEncryptDecryptTest {
                     new ArrayList<RawPacket>(), new ArrayList<RawPacket>(),
                     new CryptoInputParcel(new Date(), mKeyPhrase1));
 
-            ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+            DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
-            providerHelper.saveSecretKeyRing(modified, new ProgressScaler());
+            databaseInteractor.saveSecretKeyRing(modified, new ProgressScaler());
 
             PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(ciphertext);
             DecryptVerifyResult result = op.execute(input, new CryptoInputParcel(mKeyPhrase1));
 
@@ -648,11 +648,11 @@ public class PgpEncryptDecryptTest {
                     new ArrayList<RawPacket>(), new ArrayList<RawPacket>(),
                     new CryptoInputParcel(new Date(), mKeyPhrase1));
 
-            ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+            DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
-            providerHelper.saveSecretKeyRing(modified, new ProgressScaler());
+            databaseInteractor.saveSecretKeyRing(modified, new ProgressScaler());
 
             PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
             PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(ciphertext);
             DecryptVerifyResult result = op.execute(input, new CryptoInputParcel(mKeyPhrase1));
 
@@ -675,8 +675,8 @@ public class PgpEncryptDecryptTest {
                     new ArrayList<RawPacket>(), new ArrayList<RawPacket>(),
                     new CryptoInputParcel(new Date(), mKeyPhrase1));
 
-            ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+            DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
-            providerHelper.saveSecretKeyRing(modified, new ProgressScaler());
+            databaseInteractor.saveSecretKeyRing(modified, new ProgressScaler());
         }
 
         { // encrypt to this keyring, make sure it's not encrypted to the revoked subkey
@@ -685,7 +685,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -730,7 +730,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -824,7 +824,7 @@ public class PgpEncryptDecryptTest {
         { // decryption with passphrase cached should succeed for the other key if first is gone
 
             // delete first key from database
-            new ProviderHelper(RuntimeEnvironment.application).getContentResolver().delete(
+            new DatabaseInteractor(RuntimeEnvironment.application).getContentResolver().delete(
                     KeyRingData.buildPublicKeyRingUri(mStaticRing1.getMasterKeyId()), null, null
             );
 
@@ -859,7 +859,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -907,7 +907,7 @@ public class PgpEncryptDecryptTest {
         { // decryption with passphrase cached should succeed for the other key if first is gone
 
             // delete first key from database
-            new ProviderHelper(RuntimeEnvironment.application).getContentResolver().delete(
+            new DatabaseInteractor(RuntimeEnvironment.application).getContentResolver().delete(
                     KeyRingData.buildPublicKeyRingUri(mStaticRing1.getMasterKeyId()), null, null
             );
 
@@ -946,7 +946,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaindata);
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -1018,7 +1018,7 @@ public class PgpEncryptDecryptTest {
             ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
 
             PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
-                    new ProviderHelper(RuntimeEnvironment.application), null);
+                    new DatabaseInteractor(RuntimeEnvironment.application), null);
 
             InputData data = new InputData(in, in.available());
 
@@ -1069,7 +1069,7 @@ public class PgpEncryptDecryptTest {
             final Passphrase passphrase, final Long checkMasterKeyId, final Long checkSubKeyId) {
 
         return new PgpDecryptVerifyOperation(RuntimeEnvironment.application,
-                new ProviderHelper(RuntimeEnvironment.application), null) {
+                new DatabaseInteractor(RuntimeEnvironment.application), null) {
             @Override
             public Passphrase getCachedPassphrase(long masterKeyId, long subKeyId)
                     throws NoSecretKeyException {

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/provider/DatabaseInteractorKeyringTest.java

@@ -30,7 +30,7 @@ import java.util.Collection;
 import java.util.Collections;
 
 @RunWith(KeychainTestRunner.class)
-public class ProviderHelperKeyringTest {
+public class DatabaseInteractorKeyringTest {
 
     @Test
     public void testSavePublicKeyring() throws Exception {

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/provider/DatabaseInteractorSaveTest.java

@@ -41,9 +41,9 @@ import java.util.Arrays;
 import java.util.Iterator;
 
 @RunWith(KeychainTestRunner.class)
-public class ProviderHelperSaveTest {
+public class DatabaseInteractorSaveTest {
 
-    ProviderHelper mProviderHelper = new ProviderHelper(RuntimeEnvironment.application);
+    DatabaseInteractor mDatabaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
 
     @BeforeClass
     public static void setUpOnce() throws Exception {
@@ -61,17 +61,17 @@ public class ProviderHelperSaveTest {
         SaveKeyringResult result;
 
         // insert both keys, second should fail
-        result = new ProviderHelper(RuntimeEnvironment.application).savePublicKeyRing(first);
+        result = new DatabaseInteractor(RuntimeEnvironment.application).savePublicKeyRing(first);
         Assert.assertTrue("first keyring import should succeed", result.success());
-        result = new ProviderHelper(RuntimeEnvironment.application).savePublicKeyRing(second);
+        result = new DatabaseInteractor(RuntimeEnvironment.application).savePublicKeyRing(second);
         Assert.assertFalse("second keyring import should fail", result.success());
 
         new KeychainDatabase(RuntimeEnvironment.application).clearDatabase();
 
         // and the other way around
-        result = new ProviderHelper(RuntimeEnvironment.application).savePublicKeyRing(second);
+        result = new DatabaseInteractor(RuntimeEnvironment.application).savePublicKeyRing(second);
         Assert.assertTrue("first keyring import should succeed", result.success());
-        result = new ProviderHelper(RuntimeEnvironment.application).savePublicKeyRing(first);
+        result = new DatabaseInteractor(RuntimeEnvironment.application).savePublicKeyRing(first);
         Assert.assertFalse("second keyring import should fail", result.success());
 
     }
@@ -90,13 +90,13 @@ public class ProviderHelperSaveTest {
         SaveKeyringResult result;
 
         // insert secret, this should fail because of missing self-cert
-        result = new ProviderHelper(RuntimeEnvironment.application).saveSecretKeyRing(seckey, new ProgressScaler());
+        result = new DatabaseInteractor(RuntimeEnvironment.application).saveSecretKeyRing(seckey, new ProgressScaler());
         Assert.assertFalse("secret keyring import before pubring import should fail", result.success());
 
         // insert pubkey, then seckey - both should succeed
-        result = new ProviderHelper(RuntimeEnvironment.application).savePublicKeyRing(pubkey);
+        result = new DatabaseInteractor(RuntimeEnvironment.application).savePublicKeyRing(pubkey);
         Assert.assertTrue("public keyring import should succeed", result.success());
-        result = new ProviderHelper(RuntimeEnvironment.application).saveSecretKeyRing(seckey, new ProgressScaler());
+        result = new DatabaseInteractor(RuntimeEnvironment.application).saveSecretKeyRing(seckey, new ProgressScaler());
         Assert.assertTrue("secret keyring import after pubring import should succeed", result.success());
 
     }
@@ -108,10 +108,10 @@ public class ProviderHelperSaveTest {
         Assert.assertEquals("key flags should be zero",
                 0, (long) pub.canonicalize(new OperationLog(), 0).getPublicKey().getKeyUsage());
 
-        mProviderHelper.savePublicKeyRing(pub);
+        mDatabaseInteractor.savePublicKeyRing(pub);
 
-        CachedPublicKeyRing cachedRing = mProviderHelper.getCachedPublicKeyRing(keyId);
+        CachedPublicKeyRing cachedRing = mDatabaseInteractor.getCachedPublicKeyRing(keyId);
-        CanonicalizedPublicKeyRing pubRing = mProviderHelper.getCanonicalizedPublicKeyRing(keyId);
+        CanonicalizedPublicKeyRing pubRing = mDatabaseInteractor.getCanonicalizedPublicKeyRing(keyId);
 
         Assert.assertEquals("master key should be encryption key", keyId, pubRing.getEncryptId());
         Assert.assertEquals("master key should be encryption key (cached)", keyId, cachedRing.getEncryptId());
@@ -131,13 +131,13 @@ public class ProviderHelperSaveTest {
 
         SaveKeyringResult result;
 
-        result = mProviderHelper.saveSecretKeyRing(sec, new ProgressScaler());
+        result = mDatabaseInteractor.saveSecretKeyRing(sec, new ProgressScaler());
         Assert.assertTrue("import of secret keyring should succeed", result.success());
 
         // make sure both the CanonicalizedSecretKeyRing as well as the CachedPublicKeyRing correctly
         // indicate the secret key type
-        CachedPublicKeyRing cachedRing = mProviderHelper.getCachedPublicKeyRing(keyId);
+        CachedPublicKeyRing cachedRing = mDatabaseInteractor.getCachedPublicKeyRing(keyId);
-        CanonicalizedSecretKeyRing secRing = mProviderHelper.getCanonicalizedSecretKeyRing(keyId);
+        CanonicalizedSecretKeyRing secRing = mDatabaseInteractor.getCanonicalizedSecretKeyRing(keyId);
 
         Iterator<CanonicalizedSecretKey> it = secRing.secretKeyIterator().iterator();
 
@@ -195,10 +195,10 @@ public class ProviderHelperSaveTest {
 
         SaveKeyringResult result;
 
-        result = mProviderHelper.savePublicKeyRing(key, new ProgressScaler(), null);
+        result = mDatabaseInteractor.savePublicKeyRing(key, new ProgressScaler(), null);
         Assert.assertTrue("import of keyring should succeed", result.success());
 
-        CanonicalizedPublicKeyRing ring = mProviderHelper.getCanonicalizedPublicKeyRing(keyId);
+        CanonicalizedPublicKeyRing ring = mDatabaseInteractor.getCanonicalizedPublicKeyRing(keyId);
         boolean found = false;
         byte[] badUserId = Hex.decode("436c61757320467261656e6b656c203c436c6175732e4672e46e6b656c4068616c696661782e727774682d61616368656e2e64653e");
         for (byte[] rawUserId : new IterableIterator<byte[]>(
@@ -222,29 +222,29 @@ public class ProviderHelperSaveTest {
 
         SaveKeyringResult result;
 
-        result = mProviderHelper.saveSecretKeyRing(key, new ProgressScaler());
+        result = mDatabaseInteractor.saveSecretKeyRing(key, new ProgressScaler());
         Assert.assertTrue("import of keyring should succeed", result.success());
 
         long signId;
         {
-            CanonicalizedSecretKeyRing ring = mProviderHelper.getCanonicalizedSecretKeyRing(masterKeyId);
+            CanonicalizedSecretKeyRing ring = mDatabaseInteractor.getCanonicalizedSecretKeyRing(masterKeyId);
             Assert.assertTrue("master key should have sign flag", ring.getPublicKey().canSign());
             Assert.assertTrue("master key should have encrypt flag", ring.getPublicKey().canEncrypt());
 
-            signId = mProviderHelper.getCachedPublicKeyRing(masterKeyId).getSecretSignId();
+            signId = mDatabaseInteractor.getCachedPublicKeyRing(masterKeyId).getSecretSignId();
             Assert.assertNotEquals("encrypt id should not be 0", 0, signId);
             Assert.assertNotEquals("encrypt key should be different from master key", masterKeyId, signId);
         }
 
         {
-            CachedPublicKeyRing ring = mProviderHelper.getCachedPublicKeyRing(masterKeyId);
+            CachedPublicKeyRing ring = mDatabaseInteractor.getCachedPublicKeyRing(masterKeyId);
             Assert.assertEquals("signing key should be same id cached as uncached", signId, ring.getSecretSignId());
         }
 
     }
 
     UncachedKeyRing readRingFromResource(String name) throws Exception {
-        return UncachedKeyRing.fromStream(ProviderHelperSaveTest.class.getResourceAsStream(name)).next();
+        return UncachedKeyRing.fromStream(DatabaseInteractorSaveTest.class.getResourceAsStream(name)).next();
     }
 
 }

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/provider/InteropTest.java

@@ -243,7 +243,7 @@ public class InteropTest {
         final Uri verifyUri =  verify != null ?
                 KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(verify.getMasterKeyId()) : null;
 
-        ProviderHelper helper = new ProviderHelper(RuntimeEnvironment.application) {
+        DatabaseInteractor helper = new DatabaseInteractor(RuntimeEnvironment.application) {
 
             @Override
             public CachedPublicKeyRing getCachedPublicKeyRing(Uri queryUri) throws PgpKeyNotFoundException {

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/remote/KeychainExternalProviderTest.java

@@ -21,8 +21,8 @@ import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.provider.ApiDataAccessObject;
 import org.sufficientlysecure.keychain.provider.KeychainExternalContract.EmailStatus;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
-import org.sufficientlysecure.keychain.provider.ProviderHelperSaveTest;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractorSaveTest;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel;
 import org.sufficientlysecure.keychain.service.CertifyActionsParcel.CertifyAction;
 import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
@@ -45,7 +45,7 @@ public class KeychainExternalProviderTest {
     static final long KEY_ID_PUBLIC = 0x9A282CE2AB44A382L;
 
 
-    ProviderHelper providerHelper = new ProviderHelper(RuntimeEnvironment.application);
+    DatabaseInteractor databaseInteractor = new DatabaseInteractor(RuntimeEnvironment.application);
     ContentResolver contentResolver = RuntimeEnvironment.application.getContentResolver();
     ApiPermissionHelper apiPermissionHelper;
     ApiDataAccessObject apiDao;
@@ -187,7 +187,7 @@ public class KeychainExternalProviderTest {
         CertifyActionsParcel certifyActionsParcel = new CertifyActionsParcel(secretMasterKeyId);
         certifyActionsParcel.add(new CertifyAction(publicMasterKeyId, Collections.singletonList(userId), null));
         CertifyOperation op = new CertifyOperation(
-                RuntimeEnvironment.application, providerHelper, new ProgressScaler(), null);
+                RuntimeEnvironment.application, databaseInteractor, new ProgressScaler(), null);
         CertifyResult certifyResult = op.execute(certifyActionsParcel, new CryptoInputParcel());
 
         assertTrue(certifyResult.success());
@@ -195,17 +195,17 @@ public class KeychainExternalProviderTest {
 
     private void insertPublicKeyringFrom(String filename) throws Exception {
         UncachedKeyRing ring = readRingFromResource(filename);
-        SaveKeyringResult saveKeyringResult = providerHelper.savePublicKeyRing(ring);
+        SaveKeyringResult saveKeyringResult = databaseInteractor.savePublicKeyRing(ring);
         assertTrue(saveKeyringResult.success());
     }
 
     private void insertSecretKeyringFrom(String filename) throws Exception {
         UncachedKeyRing ring = readRingFromResource(filename);
-        SaveKeyringResult saveKeyringResult = providerHelper.saveSecretKeyRing(ring, new ProgressScaler());
+        SaveKeyringResult saveKeyringResult = databaseInteractor.saveSecretKeyRing(ring, new ProgressScaler());
         assertTrue(saveKeyringResult.success());
     }
 
     UncachedKeyRing readRingFromResource(String name) throws Exception {
-        return UncachedKeyRing.fromStream(ProviderHelperSaveTest.class.getResourceAsStream(name)).next();
+        return UncachedKeyRing.fromStream(DatabaseInteractorSaveTest.class.getResourceAsStream(name)).next();
     }
 }

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/support/DatabaseInteractorStub.java

@@ -21,10 +21,10 @@ import android.content.Context;
 import android.net.Uri;
 
 import org.sufficientlysecure.keychain.pgp.CanonicalizedPublicKeyRing;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 
-class ProviderHelperStub extends ProviderHelper {
+class DatabaseInteractorStub extends DatabaseInteractor {
-    public ProviderHelperStub(Context context) {
+    public DatabaseInteractorStub(Context context) {
         super(context);
     }
 

OpenKeychain/src/test/java/org/sufficientlysecure/keychain/support/KeyringTestingHelper.java

@@ -23,7 +23,7 @@ import android.content.Context;
 import org.bouncycastle.util.Arrays;
 import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.provider.DatabaseInteractor;
 import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
 import org.sufficientlysecure.keychain.util.ProgressScaler;
 
@@ -50,24 +50,24 @@ public class KeyringTestingHelper {
 
     public boolean addKeyring(Collection<String> blobFiles) throws Exception {
 
-        ProviderHelper providerHelper = new ProviderHelper(context);
+        DatabaseInteractor databaseInteractor = new DatabaseInteractor(context);
 
         byte[] data = TestDataUtil.readAllFully(blobFiles);
         UncachedKeyRing ring = UncachedKeyRing.decodeFromData(data);
         long masterKeyId = ring.getMasterKeyId();
 
         // Should throw an exception; key is not yet saved
-        retrieveKeyAndExpectNotFound(providerHelper, masterKeyId);
+        retrieveKeyAndExpectNotFound(databaseInteractor, masterKeyId);
 
-        SaveKeyringResult saveKeyringResult = providerHelper.savePublicKeyRing(ring, new ProgressScaler(), null);
+        SaveKeyringResult saveKeyringResult = databaseInteractor.savePublicKeyRing(ring, new ProgressScaler(), null);
 
         boolean saveSuccess = saveKeyringResult.success();
 
         // Now re-retrieve the saved key. Should not throw an exception.
-        providerHelper.getCanonicalizedPublicKeyRing(masterKeyId);
+        databaseInteractor.getCanonicalizedPublicKeyRing(masterKeyId);
 
         // A different ID should still fail
-        retrieveKeyAndExpectNotFound(providerHelper, masterKeyId - 1);
+        retrieveKeyAndExpectNotFound(databaseInteractor, masterKeyId - 1);
 
         return saveSuccess;
     }
@@ -345,11 +345,11 @@ public class KeyringTestingHelper {
         return getNth(ring.getPublicKeys(), position).getKeyId();
     }
 
-    private void retrieveKeyAndExpectNotFound(ProviderHelper providerHelper, long masterKeyId) {
+    private void retrieveKeyAndExpectNotFound(DatabaseInteractor databaseInteractor, long masterKeyId) {
         try {
-            providerHelper.getCanonicalizedPublicKeyRing(masterKeyId);
+            databaseInteractor.getCanonicalizedPublicKeyRing(masterKeyId);
             throw new AssertionError("Was expecting the previous call to fail!");
-        } catch (ProviderHelper.NotFoundException expectedException) {
+        } catch (DatabaseInteractor.NotFoundException expectedException) {
             // good
         }
     }