Merge pull request #2375 from open-keychain/ditch-keychain-provider

Ditch keychain provider

OpenKeychain/src/main/AndroidManifest.xml

@@ -880,13 +880,10 @@
             android:name=".service.KeychainService"
             android:exported="false" />
 
-        <!-- label is made to be "Keyserver Sync" since that is the only context in which
-        the user will see it-->
         <provider
             android:name=".provider.KeychainProvider"
             android:authorities="${applicationId}.provider"
-            android:exported="false"
-            android:label="@string/keyserver_sync_settings_title" />
+            android:exported="false" />
 
         <provider
             android:name=".remote.KeychainExternalProvider"

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainDatabase.java

@@ -51,7 +51,7 @@ import timber.log.Timber;
  */
 public class KeychainDatabase {
     private static final String DATABASE_NAME = "openkeychain.db";
-    private static final int DATABASE_VERSION = 29;
+    private static final int DATABASE_VERSION = 30;
     private final SupportSQLiteOpenHelper supportSQLiteOpenHelper;
 
     private static KeychainDatabase sInstance;
@@ -133,6 +133,8 @@ public class KeychainDatabase {
         db.execSQL(AutocryptPeersModel.CREATE_TABLE);
         db.execSQL(ApiAllowedKeysModel.CREATE_TABLE);
         db.execSQL(KeysModel.UNIFIEDKEYVIEW);
+        db.execSQL(KeysModel.VALIDKEYSVIEW);
+        db.execSQL(UserPacketsModel.UIDSTATUS);
 
         db.execSQL("CREATE INDEX keys_by_rank ON keys (" + KeysColumns.RANK + ", " + KeysColumns.MASTER_KEY_ID + ");");
         db.execSQL("CREATE INDEX uids_by_rank ON user_packets (" + UserPacketsColumns.RANK + ", "
@@ -356,18 +358,28 @@ public class KeychainDatabase {
                 renameApiAutocryptPeersTable(db);
 
             case 28:
-                recreateUnifiedKeyView(db);
                 // drop old table from version 20
                 db.execSQL("DROP TABLE IF EXISTS api_accounts");
+
+            case 29:
+                recreateUnifiedKeyView(db);
         }
     }
 
     private void recreateUnifiedKeyView(SupportSQLiteDatabase db) {
         try {
             db.beginTransaction();
+
             // noinspection deprecation
             db.execSQL("DROP VIEW IF EXISTS " + KeysModel.UNIFIEDKEYVIEW_VIEW_NAME);
             db.execSQL(KeysModel.UNIFIEDKEYVIEW);
+            // noinspection deprecation
+            db.execSQL("DROP VIEW IF EXISTS " + KeysModel.VALIDMASTERKEYS_VIEW_NAME);
+            db.execSQL(KeysModel.VALIDKEYSVIEW);
+            // noinspection deprecation
+            db.execSQL("DROP VIEW IF EXISTS " + UserPacketsModel.UIDSTATUS_VIEW_NAME);
+            db.execSQL(UserPacketsModel.UIDSTATUS);
+
             db.setTransactionSuccessful();
         } finally {
             db.endTransaction();

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/daos/AbstractDao.java

@@ -8,6 +8,7 @@ import android.arch.persistence.db.SupportSQLiteDatabase;
 import android.arch.persistence.db.SupportSQLiteQuery;
 import android.database.Cursor;
 
+import com.squareup.sqldelight.RowMapper;
 import org.sufficientlysecure.keychain.KeychainDatabase;
 import org.sufficientlysecure.keychain.daos.KeyRepository.NotFoundException;
 
@@ -33,7 +34,7 @@ class AbstractDao {
         return databaseNotifyManager;
     }
 
-    <T> List<T> mapAllRows(SupportSQLiteQuery query, Mapper<T> mapper) {
+    <T> List<T> mapAllRows(SupportSQLiteQuery query, RowMapper<T> mapper) {
         ArrayList<T> result = new ArrayList<>();
         try (Cursor cursor = getReadableDb().query(query)) {
             while (cursor.moveToNext()) {
@@ -44,7 +45,7 @@ class AbstractDao {
         return result;
     }
 
-    <T> T mapSingleRowOrThrow(SupportSQLiteQuery query, Mapper<T> mapper) throws NotFoundException {
+    <T> T mapSingleRowOrThrow(SupportSQLiteQuery query, RowMapper<T> mapper) throws NotFoundException {
         T result = mapSingleRow(query, mapper);
         if (result == null) {
             throw new NotFoundException();
@@ -52,7 +53,7 @@ class AbstractDao {
         return result;
     }
 
-    <T> T mapSingleRow(SupportSQLiteQuery query, Mapper<T> mapper) {
+    <T> T mapSingleRow(SupportSQLiteQuery query, RowMapper<T> mapper) {
         try (Cursor cursor = getReadableDb().query(query)) {
             if (cursor.moveToNext()) {
                 return mapper.map(cursor);
@@ -60,8 +61,4 @@ class AbstractDao {
         }
         return null;
     }
-
-    interface Mapper<T> {
-        T map(Cursor cursor);
-    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/daos/DatabaseBatchInteractor.java

@@ -0,0 +1,100 @@
+package org.sufficientlysecure.keychain.daos;
+
+
+import java.util.List;
+
+import android.arch.persistence.db.SupportSQLiteDatabase;
+
+import org.sufficientlysecure.keychain.CertsModel.InsertCert;
+import org.sufficientlysecure.keychain.KeyRingsPublicModel.InsertKeyRingPublic;
+import org.sufficientlysecure.keychain.KeySignaturesModel.InsertKeySignature;
+import org.sufficientlysecure.keychain.KeysModel.InsertKey;
+import org.sufficientlysecure.keychain.UserPacketsModel.InsertUserPacket;
+import org.sufficientlysecure.keychain.model.Certification;
+import org.sufficientlysecure.keychain.model.KeyRingPublic;
+import org.sufficientlysecure.keychain.model.KeySignature;
+import org.sufficientlysecure.keychain.model.SubKey;
+import org.sufficientlysecure.keychain.model.UserPacket;
+
+
+public class DatabaseBatchInteractor {
+    private final SupportSQLiteDatabase db;
+
+    private final InsertKeyRingPublic insertKeyRingPublicStatement;
+    private final InsertKey insertSubKeyStatement;
+    private final InsertUserPacket insertUserPacketStatement;
+    private final InsertCert insertCertificationStatement;
+    private final InsertKeySignature insertKeySignerStatement;
+
+    DatabaseBatchInteractor(SupportSQLiteDatabase db) {
+        this.db = db;
+
+        insertKeyRingPublicStatement = KeyRingPublic.createInsertStatement(db);
+        insertSubKeyStatement = SubKey.createInsertStatement(db);
+        insertUserPacketStatement = UserPacket.createInsertStatement(db);
+        insertCertificationStatement = Certification.createInsertStatement(db);
+        insertKeySignerStatement = KeySignature.createInsertStatement(db);
+    }
+
+    public SupportSQLiteDatabase getDb() {
+        return db;
+    }
+
+    public void applyBatch(List<BatchOp> operations) {
+        for (BatchOp op : operations) {
+            if (op.keyRingPublic != null) {
+                op.keyRingPublic.bindTo(insertKeyRingPublicStatement);
+                insertKeyRingPublicStatement.executeInsert();
+            } else if (op.subKey != null) {
+                op.subKey.bindTo(insertSubKeyStatement);
+                insertSubKeyStatement.executeInsert();
+            } else if (op.userPacket != null) {
+                op.userPacket.bindTo(insertUserPacketStatement);
+                insertUserPacketStatement.executeInsert();
+            } else if (op.certification != null) {
+                op.certification.bindTo(insertCertificationStatement);
+                insertCertificationStatement.executeInsert();
+            } else if (op.keySignature != null) {
+                op.keySignature.bindTo(insertKeySignerStatement);
+                insertKeySignerStatement.executeInsert();
+            }
+        }
+    }
+
+    public static BatchOp createInsertKeyRingPublic(KeyRingPublic keyRingPublic) {
+        return new BatchOp(keyRingPublic, null, null, null, null);
+    }
+
+    static BatchOp createInsertSubKey(SubKey subKey) {
+        return new BatchOp(null, subKey, null, null, null);
+    }
+
+    public static BatchOp createInsertUserPacket(UserPacket userPacket) {
+        return new BatchOp(null, null, userPacket, null, null);
+    }
+
+    public static BatchOp createInsertCertification(Certification certification) {
+        return new BatchOp(null, null, null, certification, null);
+    }
+
+    static BatchOp createInsertSignerKey(KeySignature keySignature) {
+        return new BatchOp(null, null, null, null, keySignature);
+    }
+
+    static class BatchOp {
+        final KeyRingPublic keyRingPublic;
+        final SubKey subKey;
+        final UserPacket userPacket;
+        final Certification certification;
+        final KeySignature keySignature;
+
+        BatchOp(KeyRingPublic keyRingPublic, SubKey subKey, UserPacket userPacket,
+                Certification certification, KeySignature keySignature) {
+            this.subKey = subKey;
+            this.keyRingPublic = keyRingPublic;
+            this.userPacket = userPacket;
+            this.certification = certification;
+            this.keySignature = keySignature;
+        }
+    }
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/daos/DatabaseNotifyManager.java

@@ -23,6 +23,11 @@ public class DatabaseNotifyManager {
         this.contentResolver = contentResolver;
     }
 
+    public void notifyAllKeysChange() {
+        Uri uri = getNotifyUriAllKeys();
+        contentResolver.notifyChange(uri, null);
+    }
+
     public void notifyKeyChange(long masterKeyId) {
         Uri uri = getNotifyUriMasterKeyId(masterKeyId);
         contentResolver.notifyChange(uri, null);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/daos/KeyRepository.java

@@ -20,6 +20,7 @@ package org.sufficientlysecure.keychain.daos;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 
 import android.content.ContentResolver;
@@ -27,6 +28,7 @@ import android.content.Context;
 import android.database.Cursor;
 import android.support.annotation.WorkerThread;
 
+import com.squareup.sqldelight.RowMapper;
 import com.squareup.sqldelight.SqlDelightQuery;
 import org.bouncycastle.bcpg.ArmoredOutputStream;
 import org.sufficientlysecure.keychain.KeychainDatabase;
@@ -129,69 +131,133 @@ public class KeyRepository extends AbstractDao {
 
     public List<Long> getAllMasterKeyIds() {
         SqlDelightQuery query = KeyRingPublic.FACTORY.selectAllMasterKeyIds();
-        return mapAllRows(query, KeyRingPublic.FACTORY.selectAllMasterKeyIdsMapper()::map);
+        ArrayList<Long> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                Long item = KeyRingPublic.FACTORY.selectAllMasterKeyIdsMapper().map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public List<Long> getMasterKeyIdsBySigner(List<Long> signerMasterKeyIds) {
         long[] signerKeyIds = getLongListAsArray(signerMasterKeyIds);
         SqlDelightQuery query = KeySignature.FACTORY.selectMasterKeyIdsBySigner(signerKeyIds);
-        return mapAllRows(query, KeySignature.FACTORY.selectMasterKeyIdsBySignerMapper()::map);
+        ArrayList<Long> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                Long item = KeySignature.FACTORY.selectMasterKeyIdsBySignerMapper().map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public Long getMasterKeyIdBySubkeyId(long subKeyId) {
         SqlDelightQuery query = SubKey.FACTORY.selectMasterKeyIdBySubkey(subKeyId);
-        return mapSingleRow(query, SubKey.FACTORY.selectMasterKeyIdBySubkeyMapper()::map);
+        return mapSingleRow(query, SubKey.FACTORY.selectMasterKeyIdBySubkeyMapper());
     }
 
     public UnifiedKeyInfo getUnifiedKeyInfo(long masterKeyId) {
         SqlDelightQuery query = SubKey.FACTORY.selectUnifiedKeyInfoByMasterKeyId(masterKeyId);
-        return mapSingleRow(query, SubKey.UNIFIED_KEY_INFO_MAPPER::map);
+        return mapSingleRow(query, SubKey.UNIFIED_KEY_INFO_MAPPER);
     }
 
     public List<UnifiedKeyInfo> getUnifiedKeyInfo(long... masterKeyIds) {
         SqlDelightQuery query = SubKey.FACTORY.selectUnifiedKeyInfoByMasterKeyIds(masterKeyIds);
-        return mapAllRows(query, SubKey.UNIFIED_KEY_INFO_MAPPER::map);
+        ArrayList<UnifiedKeyInfo> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                UnifiedKeyInfo item = SubKey.UNIFIED_KEY_INFO_MAPPER.map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public List<UnifiedKeyInfo> getUnifiedKeyInfosByMailAddress(String mailAddress) {
         SqlDelightQuery query = SubKey.FACTORY.selectUnifiedKeyInfoSearchMailAddress('%' + mailAddress + '%');
-        return mapAllRows(query, SubKey.UNIFIED_KEY_INFO_MAPPER::map);
+        ArrayList<UnifiedKeyInfo> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                UnifiedKeyInfo item = SubKey.UNIFIED_KEY_INFO_MAPPER.map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public List<UnifiedKeyInfo> getAllUnifiedKeyInfo() {
         SqlDelightQuery query = SubKey.FACTORY.selectAllUnifiedKeyInfo();
-        return mapAllRows(query, SubKey.UNIFIED_KEY_INFO_MAPPER::map);
+        ArrayList<UnifiedKeyInfo> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                UnifiedKeyInfo item = SubKey.UNIFIED_KEY_INFO_MAPPER.map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public List<UnifiedKeyInfo> getAllUnifiedKeyInfoWithSecret() {
         SqlDelightQuery query = SubKey.FACTORY.selectAllUnifiedKeyInfoWithSecret();
-        return mapAllRows(query, SubKey.UNIFIED_KEY_INFO_MAPPER::map);
+        ArrayList<UnifiedKeyInfo> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                UnifiedKeyInfo item = SubKey.UNIFIED_KEY_INFO_MAPPER.map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public List<UserId> getUserIds(long... masterKeyIds) {
         SqlDelightQuery query = UserPacket.FACTORY.selectUserIdsByMasterKeyId(masterKeyIds);
-        return mapAllRows(query, UserPacket.USER_ID_MAPPER::map);
+        ArrayList<UserId> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                UserId item = UserPacket.USER_ID_MAPPER.map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public List<String> getConfirmedUserIds(long masterKeyId) {
         SqlDelightQuery query = UserPacket.FACTORY.selectUserIdsByMasterKeyIdAndVerification(
                 Certification.FACTORY, masterKeyId, VerificationStatus.VERIFIED_SECRET);
-        return mapAllRows(query, (cursor) -> UserPacket.USER_ID_MAPPER.map(cursor).user_id());
+        ArrayList<String> result = new ArrayList<>();
+        try (Cursor cursor1 = getReadableDb().query(query)) {
+            while (cursor1.moveToNext()) {
+                String item = ((RowMapper<String>) (cursor) -> UserPacket.USER_ID_MAPPER.map(cursor).user_id())
+                        .map(cursor1);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public List<SubKey> getSubKeysByMasterKeyId(long masterKeyId) {
         SqlDelightQuery query = SubKey.FACTORY.selectSubkeysByMasterKeyId(masterKeyId);
-        return mapAllRows(query, SubKey.SUBKEY_MAPPER::map);
+        ArrayList<SubKey> result = new ArrayList<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                SubKey item = SubKey.SUBKEY_MAPPER.map(cursor);
+                result.add(item);
+            }
+        }
+        return result;
     }
 
     public SecretKeyType getSecretKeyType(long keyId) throws NotFoundException {
         SqlDelightQuery query = SubKey.FACTORY.selectSecretKeyType(keyId);
-        return mapSingleRowOrThrow(query, SubKey.SKT_MAPPER::map);
+        return mapSingleRowOrThrow(query, SubKey.SKT_MAPPER);
     }
 
     public byte[] getFingerprintByKeyId(long keyId) throws NotFoundException {
         SqlDelightQuery query = SubKey.FACTORY.selectFingerprintByKeyId(keyId);
-        return mapSingleRowOrThrow(query, SubKey.FACTORY.selectFingerprintByKeyIdMapper()::map);
+        return mapSingleRowOrThrow(query, SubKey.FACTORY.selectFingerprintByKeyIdMapper());
     }
 
     private byte[] getKeyRingAsArmoredData(byte[] data) throws IOException {
@@ -247,12 +313,12 @@ public class KeyRepository extends AbstractDao {
 
     public long getSecretSignId(long masterKeyId) throws NotFoundException {
         SqlDelightQuery query = SubKey.FACTORY.selectEffectiveSignKeyIdByMasterKeyId(masterKeyId);
-        return mapSingleRowOrThrow(query, SubKey.FACTORY.selectEffectiveSignKeyIdByMasterKeyIdMapper()::map);
+        return mapSingleRowOrThrow(query, SubKey.FACTORY.selectEffectiveSignKeyIdByMasterKeyIdMapper());
     }
 
     public long getSecretAuthenticationId(long masterKeyId) throws NotFoundException {
         SqlDelightQuery query = SubKey.FACTORY.selectEffectiveAuthKeyIdByMasterKeyId(masterKeyId);
-        return mapSingleRowOrThrow(query, SubKey.FACTORY.selectEffectiveAuthKeyIdByMasterKeyIdMapper()::map);
+        return mapSingleRowOrThrow(query, SubKey.FACTORY.selectEffectiveAuthKeyIdByMasterKeyIdMapper());
     }
 
     public static class NotFoundException extends Exception {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/daos/KeyWritableRepository.java

@@ -25,21 +25,24 @@ import java.util.Collections;
 import java.util.Date;
 import java.util.List;
 
-import android.content.ContentProviderOperation;
-import android.content.ContentValues;
+import android.arch.persistence.db.SupportSQLiteDatabase;
 import android.content.Context;
-import android.content.OperationApplicationException;
-import android.net.Uri;
-import android.os.RemoteException;
 import android.support.annotation.NonNull;
 import android.support.v4.util.LongSparseArray;
 
 import org.openintents.openpgp.util.OpenPgpUtils;
 import org.sufficientlysecure.keychain.KeyRingsPublicModel.DeleteByMasterKeyId;
 import org.sufficientlysecure.keychain.KeychainDatabase;
+import org.sufficientlysecure.keychain.KeysModel.UpdateHasSecretByKeyId;
+import org.sufficientlysecure.keychain.KeysModel.UpdateHasSecretByMasterKeyId;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.model.CustomColumnAdapters;
+import org.sufficientlysecure.keychain.daos.DatabaseBatchInteractor.BatchOp;
+import org.sufficientlysecure.keychain.model.Certification;
+import org.sufficientlysecure.keychain.model.KeyRingPublic;
+import org.sufficientlysecure.keychain.model.KeySignature;
+import org.sufficientlysecure.keychain.model.SubKey;
 import org.sufficientlysecure.keychain.model.SubKey.UnifiedKeyInfo;
+import org.sufficientlysecure.keychain.model.UserPacket;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
 import org.sufficientlysecure.keychain.operations.results.SaveKeyringResult;
@@ -58,12 +61,6 @@ import org.sufficientlysecure.keychain.pgp.UncachedPublicKey;
 import org.sufficientlysecure.keychain.pgp.WrappedSignature;
 import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeySignatures;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Preferences;
@@ -87,6 +84,7 @@ public class KeyWritableRepository extends KeyRepository {
     private final Context context;
     private final DatabaseNotifyManager databaseNotifyManager;
     private AutocryptPeerDao autocryptPeerDao;
+    private DatabaseBatchInteractor databaseBatchInteractor;
 
     public static KeyWritableRepository create(Context context) {
         LocalPublicKeyStorage localPublicKeyStorage = LocalPublicKeyStorage.getInstance(context);
@@ -116,6 +114,7 @@ public class KeyWritableRepository extends KeyRepository {
         this.context = context;
         this.databaseNotifyManager = databaseNotifyManager;
         this.autocryptPeerDao = autocryptPeerDao;
+        this.databaseBatchInteractor = new DatabaseBatchInteractor(getWritableDb());
     }
 
     private LongSparseArray<CanonicalizedPublicKey> getTrustedMasterKeys() {
@@ -177,27 +176,29 @@ public class KeyWritableRepository extends KeyRepository {
         long masterKeyId = keyRing.getMasterKeyId();
         UncachedPublicKey masterKey = keyRing.getPublicKey();
 
-        ArrayList<ContentProviderOperation> operations;
+        log(LogType.MSG_IP_PREPARE);
+        mIndent += 1;
+
+        byte[] encodedKeyRing;
         try {
+            encodedKeyRing = keyRing.getEncoded();
+        } catch (IOException e) {
+            log(LogType.MSG_IP_ENCODE_FAIL);
+            return SaveKeyringResult.RESULT_ERROR;
+        }
 
-            log(LogType.MSG_IP_PREPARE);
-            mIndent += 1;
-
-            // save all keys and userIds included in keyRing object in database
-            operations = new ArrayList<>();
+        ArrayList<BatchOp> operations = new ArrayList<>();
 
+        try {
             log(LogType.MSG_IP_INSERT_KEYRING);
-            try {
-                writePublicKeyRing(keyRing, masterKeyId, operations);
-            } catch (IOException e) {
-                log(LogType.MSG_IP_ENCODE_FAIL);
-                return SaveKeyringResult.RESULT_ERROR;
-            }
+
+            byte[] encodedRingIfDbCachable = encodedKeyRing.length < MAX_CACHED_KEY_SIZE ? encodedKeyRing : null;
+            KeyRingPublic keyRingPublic = KeyRingPublic.create(masterKeyId, encodedRingIfDbCachable);
+            operations.add(DatabaseBatchInteractor.createInsertKeyRingPublic(keyRingPublic));
 
             log(LogType.MSG_IP_INSERT_SUBKEYS);
             mIndent += 1;
             { // insert subkeys
-                Uri uri = Keys.buildKeysUri(masterKeyId);
                 int rank = 0;
                 for (CanonicalizedPublicKey key : keyRing.publicKeyIterator()) {
                     long keyId = key.getKeyId();
@@ -206,23 +207,7 @@ public class KeyWritableRepository extends KeyRepository {
                     );
                     mIndent += 1;
 
-                    ContentValues values = new ContentValues();
-                    values.put(Keys.MASTER_KEY_ID, masterKeyId);
-                    values.put(Keys.RANK, rank);
-
-                    values.put(Keys.KEY_ID, key.getKeyId());
-                    values.put(Keys.KEY_SIZE, key.getBitStrength());
-                    values.put(Keys.KEY_CURVE_OID, key.getCurveOid());
-                    values.put(Keys.ALGORITHM, key.getAlgorithm());
-                    values.put(Keys.FINGERPRINT, key.getFingerprint());
-
                     boolean c = key.canCertify(), e = key.canEncrypt(), s = key.canSign(), a = key.canAuthenticate();
-                    values.put(Keys.CAN_CERTIFY, c);
-                    values.put(Keys.CAN_ENCRYPT, e);
-                    values.put(Keys.CAN_SIGN, s);
-                    values.put(Keys.CAN_AUTHENTICATE, a);
-                    values.put(Keys.IS_REVOKED, key.isRevoked());
-                    values.put(Keys.IS_SECURE, key.isSecure());
 
                     // see above
                     if (masterKeyId == keyId) {
@@ -240,22 +225,24 @@ public class KeyWritableRepository extends KeyRepository {
                     }
 
                     Date creation = key.getCreationTime();
-                    values.put(Keys.CREATION, creation.getTime() / 1000);
-                    Date expiryDate = key.getExpiryTime();
-                    if (expiryDate != null) {
-                        values.put(Keys.EXPIRY, expiryDate.getTime() / 1000);
+                    Date expiry = key.getExpiryTime();
+                    if (expiry != null) {
                         if (key.isExpired()) {
                             log(keyId == masterKeyId ?
                                             LogType.MSG_IP_MASTER_EXPIRED : LogType.MSG_IP_SUBKEY_EXPIRED,
-                                    expiryDate.toString());
+                                    expiry.toString());
                         } else {
                             log(keyId == masterKeyId ?
                                             LogType.MSG_IP_MASTER_EXPIRES : LogType.MSG_IP_SUBKEY_EXPIRES,
-                                    expiryDate.toString());
+                                    expiry.toString());
                         }
                     }
 
-                    operations.add(ContentProviderOperation.newInsert(uri).withValues(values).build());
+                    SubKey subKey = SubKey.create(masterKeyId, rank, key.getKeyId(),
+                            key.getBitStrength(), key.getCurveOid(), key.getAlgorithm(), key.getFingerprint(),
+                            c, s, e, a, key.isRevoked(), SecretKeyType.UNAVAILABLE, key.isSecure(), creation, expiry);
+                    operations.add(DatabaseBatchInteractor.createInsertSubKey(subKey));
+
                     ++rank;
                     mIndent -= 1;
                 }
@@ -312,10 +299,8 @@ public class KeyWritableRepository extends KeyRepository {
 
                     // keep a note about the issuer of this key signature
                     if (!signerKeyIds.contains(certId)) {
-                        operations.add(ContentProviderOperation.newInsert(KeySignatures.CONTENT_URI)
-                                .withValue(KeySignatures.MASTER_KEY_ID, masterKeyId)
-                                .withValue(KeySignatures.SIGNER_KEY_ID, certId)
-                                .build());
+                        KeySignature keySignature = KeySignature.create(masterKeyId, certId);
+                        operations.add(DatabaseBatchInteractor.createInsertSignerKey(keySignature));
                         signerKeyIds.add(certId);
                     }
 
@@ -481,7 +466,10 @@ public class KeyWritableRepository extends KeyRepository {
             // iterate and put into db
             for (int userIdRank = 0; userIdRank < uids.size(); userIdRank++) {
                 UserPacketItem item = uids.get(userIdRank);
-                operations.add(buildUserIdOperations(masterKeyId, item, userIdRank));
+                Long type = item.type != null ? item.type.longValue() : null;
+                UserPacket userPacket = UserPacket.create(masterKeyId, userIdRank, type, item.userId, item.name, item.email,
+                        item.comment, item.attributeData, item.isPrimary, item.selfRevocation != null);
+                operations.add(DatabaseBatchInteractor.createInsertUserPacket(userPacket));
 
                 if (item.selfRevocation != null) {
                     operations.add(buildCertOperations(masterKeyId, userIdRank, item.selfRevocation,
@@ -519,9 +507,12 @@ public class KeyWritableRepository extends KeyRepository {
             mIndent -= 1;
         }
 
+        SupportSQLiteDatabase db = databaseBatchInteractor.getDb();
         try {
+            db.beginTransaction();
+
             // delete old version of this keyRing (from database only!), which also deletes all keys and userIds on cascade
-            DeleteByMasterKeyId deleteStatement = new DeleteByMasterKeyId(getWritableDb());
+            DeleteByMasterKeyId deleteStatement = new DeleteByMasterKeyId(db);
             deleteStatement.bind(masterKeyId);
             int deletedRows = deleteStatement.executeUpdateDelete();
 
@@ -533,41 +524,25 @@ public class KeyWritableRepository extends KeyRepository {
             }
 
             log(LogType.MSG_IP_APPLY_BATCH);
-            contentResolver.applyBatch(KeychainContract.CONTENT_AUTHORITY, operations);
+            databaseBatchInteractor.applyBatch(operations);
+            if (encodedKeyRing.length >= MAX_CACHED_KEY_SIZE) {
+                mLocalPublicKeyStorage.writePublicKey(masterKeyId, encodedKeyRing);
+            }
             databaseNotifyManager.notifyKeyChange(masterKeyId);
 
+            db.setTransactionSuccessful();
             log(LogType.MSG_IP_SUCCESS);
             return result;
-
-        } catch (RemoteException e) {
-            log(LogType.MSG_IP_ERROR_REMOTE_EX);
-            Timber.e(e, "RemoteException during import");
-            return SaveKeyringResult.RESULT_ERROR;
-        } catch (OperationApplicationException e) {
+        } catch (IOException e) {
             log(LogType.MSG_IP_ERROR_OP_EXC);
             Timber.e(e, "OperationApplicationException during import");
             return SaveKeyringResult.RESULT_ERROR;
+        } finally {
+            db.endTransaction();
         }
 
     }
 
-    private void writePublicKeyRing(CanonicalizedPublicKeyRing keyRing, long masterKeyId,
-            ArrayList<ContentProviderOperation> operations) throws IOException {
-        byte[] encodedKey = keyRing.getEncoded();
-        mLocalPublicKeyStorage.writePublicKey(masterKeyId, encodedKey);
-
-        ContentValues values = new ContentValues();
-        values.put(KeyRingData.MASTER_KEY_ID, masterKeyId);
-        if (encodedKey.length < MAX_CACHED_KEY_SIZE) {
-            values.put(KeyRingData.KEY_RING_DATA, encodedKey);
-        } else {
-            values.put(KeyRingData.KEY_RING_DATA, (byte[]) null);
-        }
-
-        Uri uri = KeyRingData.buildPublicKeyRingUri(masterKeyId);
-        operations.add(ContentProviderOperation.newInsert(uri).withValues(values).build());
-    }
-
     private void writeSecretKeyRing(CanonicalizedSecretKeyRing keyRing, long masterKeyId) throws IOException {
         byte[] encodedKey = keyRing.getEncoded();
         localSecretKeyStorage.writeSecretKey(masterKeyId, encodedKey);
@@ -655,12 +630,12 @@ public class KeyWritableRepository extends KeyRepository {
             }
 
             {
-                Uri uri = Keys.buildKeysUri(masterKeyId);
+                UpdateHasSecretByMasterKeyId resetStatement =
+                        SubKey.createUpdateHasSecretByMasterKeyIdStatement(getWritableDb());
+                resetStatement.bind(masterKeyId, SecretKeyType.GNU_DUMMY);
+                resetStatement.executeUpdateDelete();
 
-                // first, mark all keys as not available
-                ContentValues values = new ContentValues();
-                values.put(Keys.HAS_SECRET, SecretKeyType.GNU_DUMMY.getNum());
-                contentResolver.update(uri, values, null, null);
+                UpdateHasSecretByKeyId updateStatement = SubKey.createUpdateHasSecretByKeyId(getWritableDb());
 
                 // then, mark exactly the keys we have available
                 log(LogType.MSG_IS_IMPORTING_SUBKEYS);
@@ -668,36 +643,25 @@ public class KeyWritableRepository extends KeyRepository {
                 for (CanonicalizedSecretKey sub : keyRing.secretKeyIterator()) {
                     long id = sub.getKeyId();
                     SecretKeyType mode = sub.getSecretKeyTypeSuperExpensive();
-                    values.put(Keys.HAS_SECRET, mode.getNum());
-                    int upd = contentResolver.update(uri, values, Keys.KEY_ID + " = ?",
-                            new String[]{Long.toString(id)});
+                    updateStatement.bind(id, mode);
+                    int upd = updateStatement.executeUpdateDelete();
                     if (upd == 1) {
                         switch (mode) {
                             case PASSPHRASE:
-                                log(LogType.MSG_IS_SUBKEY_OK,
-                                        KeyFormattingUtils.convertKeyIdToHex(id)
-                                );
+                                log(LogType.MSG_IS_SUBKEY_OK, KeyFormattingUtils.convertKeyIdToHex(id));
                                 break;
                             case PASSPHRASE_EMPTY:
-                                log(LogType.MSG_IS_SUBKEY_EMPTY,
-                                        KeyFormattingUtils.convertKeyIdToHex(id)
-                                );
+                                log(LogType.MSG_IS_SUBKEY_EMPTY, KeyFormattingUtils.convertKeyIdToHex(id));
                                 break;
                             case GNU_DUMMY:
-                                log(LogType.MSG_IS_SUBKEY_STRIPPED,
-                                        KeyFormattingUtils.convertKeyIdToHex(id)
-                                );
+                                log(LogType.MSG_IS_SUBKEY_STRIPPED, KeyFormattingUtils.convertKeyIdToHex(id));
                                 break;
                             case DIVERT_TO_CARD:
-                                log(LogType.MSG_IS_SUBKEY_DIVERT,
-                                        KeyFormattingUtils.convertKeyIdToHex(id)
-                                );
+                                log(LogType.MSG_IS_SUBKEY_DIVERT, KeyFormattingUtils.convertKeyIdToHex(id));
                                 break;
                         }
                     } else {
-                        log(LogType.MSG_IS_SUBKEY_NONEXISTENT,
-                                KeyFormattingUtils.convertKeyIdToHex(id)
-                        );
+                        log(LogType.MSG_IS_SUBKEY_NONEXISTENT, KeyFormattingUtils.convertKeyIdToHex(id));
                     }
                 }
                 mIndent -= 1;
@@ -744,7 +708,7 @@ public class KeyWritableRepository extends KeyRepository {
 
             // If there is an old keyring, merge it
             try {
-                UncachedKeyRing oldPublicRing = getCanonicalizedPublicKeyRing(masterKeyId).getUncachedKeyRing();
+                UncachedKeyRing oldPublicRing = UncachedKeyRing.decodeFromData(loadPublicKeyRingData(masterKeyId));
                 alreadyExists = true;
 
                 // Merge data from new public ring into the old one
@@ -769,7 +733,7 @@ public class KeyWritableRepository extends KeyRepository {
                     log(LogType.MSG_IP_SUCCESS_IDENTICAL);
                     return new SaveKeyringResult(SaveKeyringResult.UPDATED, mLog, canPublicRing);
                 }
-            } catch (NotFoundException e) {
+            } catch (PgpGeneralException | NotFoundException e) {
                 // Not an issue, just means we are dealing with a new keyring.
 
                 // Canonicalize this keyring, to assert a number of assumptions made about it.
@@ -1038,54 +1002,20 @@ public class KeyWritableRepository extends KeyRepository {
             }
         }
 
-        if (!isTrustDbInitialized) {
-            preferences.setKeySignaturesTableInitialized();
-        }
+        preferences.setKeySignaturesTableInitialized();
 
         log.add(LogType.MSG_TRUST_OK, 1);
         return new UpdateTrustResult(UpdateTrustResult.RESULT_OK, log);
     }
 
-    /**
-     * Build ContentProviderOperation to add PGPPublicKey to database corresponding to a keyRing
-     */
-    private ContentProviderOperation
-    buildCertOperations(long masterKeyId, int rank, WrappedSignature cert, VerificationStatus verificationStatus)
-            throws IOException {
-        ContentValues values = new ContentValues();
-        values.put(Certs.MASTER_KEY_ID, masterKeyId);
-        values.put(Certs.RANK, rank);
-        values.put(Certs.KEY_ID_CERTIFIER, cert.getKeyId());
-        values.put(Certs.TYPE, cert.getSignatureType());
-        values.put(Certs.CREATION, cert.getCreationTime().getTime() / 1000);
-        values.put(Certs.VERIFIED, CustomColumnAdapters.VERIFICATON_STATUS_ADAPTER.encode(verificationStatus));
-        values.put(Certs.DATA, cert.getEncoded());
-
-        Uri uri = Certs.buildCertsUri(masterKeyId);
-
-        return ContentProviderOperation.newInsert(uri).withValues(values).build();
-    }
-
-    /**
-     * Build ContentProviderOperation to add PublicUserIds to database corresponding to a keyRing
-     */
-    private ContentProviderOperation
-    buildUserIdOperations(long masterKeyId, UserPacketItem item, int rank) {
-        ContentValues values = new ContentValues();
-        values.put(UserPackets.MASTER_KEY_ID, masterKeyId);
-        values.put(UserPackets.TYPE, item.type);
-        values.put(UserPackets.USER_ID, item.userId);
-        values.put(UserPackets.NAME, item.name);
-        values.put(UserPackets.EMAIL, item.email);
-        values.put(UserPackets.COMMENT, item.comment);
-        values.put(UserPackets.ATTRIBUTE_DATA, item.attributeData);
-        values.put(UserPackets.IS_PRIMARY, item.isPrimary);
-        values.put(UserPackets.IS_REVOKED, item.selfRevocation != null);
-        values.put(UserPackets.RANK, rank);
-
-        Uri uri = UserPackets.buildUserIdsUri(masterKeyId);
-
-        return ContentProviderOperation.newInsert(uri).withValues(values).build();
+    private BatchOp buildCertOperations(long masterKeyId, int rank, WrappedSignature cert, VerificationStatus verificationStatus) {
+        try {
+            Certification certification = Certification.create(masterKeyId, rank, cert.getKeyId(),
+                    cert.getSignatureType(), verificationStatus, cert.getCreationTime(), cert.getEncoded());
+            return DatabaseBatchInteractor.createInsertCertification(certification);
+        } catch (IOException e) {
+            throw new AssertionError(e);
+        }
     }
 
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/daos/UserIdDao.java

@@ -0,0 +1,44 @@
+package org.sufficientlysecure.keychain.daos;
+
+
+import java.util.HashMap;
+import java.util.Map;
+
+import android.content.Context;
+import android.database.Cursor;
+
+import com.squareup.sqldelight.SqlDelightQuery;
+import org.sufficientlysecure.keychain.KeychainDatabase;
+import org.sufficientlysecure.keychain.model.UserPacket;
+import org.sufficientlysecure.keychain.model.UserPacket.UidStatus;
+
+
+public class UserIdDao extends AbstractDao {
+    public static UserIdDao getInstance(Context context) {
+        KeychainDatabase keychainDatabase = KeychainDatabase.getInstance(context);
+        DatabaseNotifyManager databaseNotifyManager = DatabaseNotifyManager.create(context);
+
+        return new UserIdDao(keychainDatabase, databaseNotifyManager);
+    }
+
+    private UserIdDao(KeychainDatabase db, DatabaseNotifyManager databaseNotifyManager) {
+        super(db, databaseNotifyManager);
+    }
+
+    public UidStatus getUidStatusByEmailLike(String emailLike) {
+        SqlDelightQuery query = UserPacket.FACTORY.selectUserIdStatusByEmailLike(emailLike);
+        return mapSingleRow(query, UserPacket.UID_STATUS_MAPPER);
+    }
+
+    public Map<String,UidStatus> getUidStatusByEmail(String... emails) {
+        SqlDelightQuery query = UserPacket.FACTORY.selectUserIdStatusByEmail(emails);
+        Map<String,UidStatus> result = new HashMap<>();
+        try (Cursor cursor = getReadableDb().query(query)) {
+            while (cursor.moveToNext()) {
+                UidStatus item = UserPacket.UID_STATUS_MAPPER.map(cursor);
+                result.put(item.email(), item);
+            }
+        }
+        return result;
+    }
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/model/Certification.java

@@ -1,8 +1,13 @@
 package org.sufficientlysecure.keychain.model;
 
 
+import java.util.Date;
+
+import android.arch.persistence.db.SupportSQLiteDatabase;
+
 import com.google.auto.value.AutoValue;
 import org.sufficientlysecure.keychain.CertsModel;
+import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing.VerificationStatus;
 
 
 @AutoValue
@@ -13,6 +18,20 @@ public abstract class Certification implements CertsModel {
     public static final SelectVerifyingCertDetailsMapper<CertDetails> CERT_DETAILS_MAPPER =
             new SelectVerifyingCertDetailsMapper<>(AutoValue_Certification_CertDetails::new);
 
+    public static Certification create(long masterKeyId, long rank, long keyIdCertifier, long type,
+            VerificationStatus verified, Date creation, byte[] data) {
+        long creationUnixTime = creation.getTime() / 1000;
+        return new AutoValue_Certification(masterKeyId, rank, keyIdCertifier, type, verified, creationUnixTime, data);
+    }
+
+    public static InsertCert createInsertStatement(SupportSQLiteDatabase db) {
+        return new InsertCert(db, FACTORY);
+    }
+
+    public void bindTo(InsertCert statement) {
+        statement.bind(master_key_id(), rank(), key_id_certifier(), type(), verified(), creation(), data());
+    }
+
     @AutoValue
     public static abstract class CertDetails implements CertsModel.SelectVerifyingCertDetailsModel {
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/model/KeyRingPublic.java

@@ -1,12 +1,28 @@
 package org.sufficientlysecure.keychain.model;
 
 
+import android.arch.persistence.db.SupportSQLiteDatabase;
+
 import com.google.auto.value.AutoValue;
 import org.sufficientlysecure.keychain.KeyRingsPublicModel;
+import org.sufficientlysecure.keychain.KeysModel.InsertKey;
+
 
 @AutoValue
 public abstract class KeyRingPublic implements KeyRingsPublicModel {
     public static final Factory<KeyRingPublic> FACTORY = new Factory<>(AutoValue_KeyRingPublic::new);
 
     public static final Mapper<KeyRingPublic> MAPPER = new Mapper<>(FACTORY);
+
+    public static KeyRingPublic create(long masterKeyId, byte[] keyRingData) {
+        return new AutoValue_KeyRingPublic(masterKeyId, keyRingData);
+    }
+
+    public static InsertKeyRingPublic createInsertStatement(SupportSQLiteDatabase db) {
+        return new InsertKeyRingPublic(db);
+    }
+
+    public void bindTo(InsertKeyRingPublic statement) {
+        statement.bind(master_key_id(), key_ring_data());
+    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/model/KeySignature.java

@@ -1,6 +1,8 @@
 package org.sufficientlysecure.keychain.model;
 
 
+import android.arch.persistence.db.SupportSQLiteDatabase;
+
 import com.google.auto.value.AutoValue;
 import org.sufficientlysecure.keychain.KeySignaturesModel;
 
@@ -10,4 +12,16 @@ public abstract class KeySignature implements KeySignaturesModel {
     public static final Factory<KeySignature> FACTORY = new Factory<>(AutoValue_KeySignature::new);
 
     public static final Mapper<KeySignature> MAPPER = new Mapper<>(FACTORY);
+
+    public static InsertKeySignature createInsertStatement(SupportSQLiteDatabase db) {
+        return new InsertKeySignature(db);
+    }
+
+    public void bindTo(InsertKeySignature statement) {
+        statement.bind(master_key_id(), signer_key_id());
+    }
+
+    public static KeySignature create(long masterKeyId, long certId) {
+        return null;
+    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/model/SubKey.java

@@ -3,8 +3,11 @@ package org.sufficientlysecure.keychain.model;
 
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.Date;
 import java.util.List;
 
+import android.arch.persistence.db.SupportSQLiteDatabase;
+
 import com.google.auto.value.AutoValue;
 import com.squareup.sqldelight.RowMapper;
 import org.sufficientlysecure.keychain.KeysModel;
@@ -26,6 +29,33 @@ public abstract class SubKey implements KeysModel {
         return expiry() != null;
     }
 
+    public static SubKey create(long masterKeyId, long rank, long keyId, Integer keySize, String keyCurveOid,
+            int algorithm, byte[] fingerprint, boolean canCertify, boolean canSign, boolean canEncrypt, boolean canAuth,
+            boolean isRevoked, SecretKeyType hasSecret, boolean isSecure, Date creation, Date expiry) {
+        long creationUnixTime = creation.getTime() / 1000;
+        Long expiryUnixTime = expiry != null ? expiry.getTime() / 1000 : null;
+        return new AutoValue_SubKey(masterKeyId, rank, keyId, keySize, keyCurveOid, algorithm, fingerprint, canCertify,
+                canSign, canEncrypt, canAuth, isRevoked, hasSecret, isSecure, creationUnixTime, expiryUnixTime);
+    }
+
+    public static InsertKey createInsertStatement(SupportSQLiteDatabase db) {
+        return new InsertKey(db, FACTORY);
+    }
+
+    public static UpdateHasSecretByMasterKeyId createUpdateHasSecretByMasterKeyIdStatement(SupportSQLiteDatabase db) {
+        return new UpdateHasSecretByMasterKeyId(db, FACTORY);
+    }
+
+    public static UpdateHasSecretByKeyId createUpdateHasSecretByKeyId(SupportSQLiteDatabase db) {
+        return new UpdateHasSecretByKeyId(db, FACTORY);
+    }
+
+    public void bindTo(InsertKey statement) {
+        statement.bind(master_key_id(), rank(), key_id(), key_size(), key_curve_oid(), algorithm(), fingerprint(),
+                can_certify(), can_sign(), can_encrypt(), can_authenticate(), is_revoked(), has_secret(), is_secure(),
+                creation(), expiry());
+    }
+
     @AutoValue
     public static abstract class UnifiedKeyInfo implements KeysModel.UnifiedKeyViewModel {
         private List<String> autocryptPackageNames;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/model/UserPacket.java

@@ -1,12 +1,12 @@
 package org.sufficientlysecure.keychain.model;
 
 
+import android.arch.persistence.db.SupportSQLiteDatabase;
 import android.support.annotation.NonNull;
 
 import com.google.auto.value.AutoValue;
 import org.sufficientlysecure.keychain.UserPacketsModel;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing.VerificationStatus;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
 
 
 @AutoValue
@@ -16,6 +16,23 @@ public abstract class UserPacket implements UserPacketsModel {
             FACTORY.selectUserIdsByMasterKeyIdMapper(AutoValue_UserPacket_UserId::new);
     public static final SelectUserAttributesByTypeAndMasterKeyIdMapper<UserAttribute> USER_ATTRIBUTE_MAPPER =
             FACTORY.selectUserAttributesByTypeAndMasterKeyIdMapper(AutoValue_UserPacket_UserAttribute::new);
+    public static final UidStatusMapper<UidStatus> UID_STATUS_MAPPER =
+            FACTORY.selectUserIdStatusByEmailMapper(AutoValue_UserPacket_UidStatus::new);
+
+    public static UserPacket create(long masterKeyId, int rank, Long type, String userId, String name, String email,
+            String comment, byte[] attribute_data, boolean isPrimary, boolean isRevoked) {
+        return new AutoValue_UserPacket(masterKeyId, rank, type,
+                userId, name, email, comment, attribute_data, isPrimary, isRevoked);
+    }
+
+    public static InsertUserPacket createInsertStatement(SupportSQLiteDatabase db) {
+        return new InsertUserPacket(db);
+    }
+
+    public void bindTo(InsertUserPacket statement) {
+        statement.bind(master_key_id(), rank(), type(), user_id(), name(), email(), comment(), attribute_data(),
+                is_primary(), is_revoked());
+    }
 
     @AutoValue
     public static abstract class UserId implements SelectUserIdsByMasterKeyIdModel {
@@ -40,4 +57,11 @@ public abstract class UserPacket implements UserPacketsModel {
             return CustomColumnAdapters.VERIFICATON_STATUS_ADAPTER.decode(verified_int());
         }
     }
+
+    @AutoValue
+    public static abstract class UidStatus implements UidStatusModel {
+        public VerificationStatus keyStatus() {
+            return CustomColumnAdapters.VERIFICATON_STATUS_ADAPTER.decode(key_status_int());
+        }
+    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/OperationResult.java

@@ -339,7 +339,6 @@ public abstract class OperationResult implements Parcelable {
         MSG_IP_ENCODE_FAIL (LogLevel.DEBUG, R.string.msg_ip_encode_fail),
         MSG_IP_ERROR_IO_EXC (LogLevel.ERROR, R.string.msg_ip_error_io_exc),
         MSG_IP_ERROR_OP_EXC (LogLevel.ERROR, R.string.msg_ip_error_op_exc),
-        MSG_IP_ERROR_REMOTE_EX (LogLevel.ERROR, R.string.msg_ip_error_remote_ex),
         MSG_IP_FINGERPRINT_ERROR (LogLevel.ERROR, R.string.msg_ip_fingerprint_error),
         MSG_IP_FINGERPRINT_OK (LogLevel.INFO, R.string.msg_ip_fingerprint_ok),
         MSG_IP_INSERT_KEYRING (LogLevel.DEBUG, R.string.msg_ip_insert_keyring),

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

@@ -17,18 +17,11 @@
 
 package org.sufficientlysecure.keychain.provider;
 
-import android.net.Uri;
+
 import android.provider.BaseColumns;
 
-import org.sufficientlysecure.keychain.Constants;
-
 public class KeychainContract {
 
-    public interface KeyRingsColumns {
-        String MASTER_KEY_ID = "master_key_id"; // not a database id
-        String KEY_RING_DATA = "key_ring_data"; // PGPPublicKeyRing / PGPSecretKeyRing blob
-    }
-
     public interface KeysColumns {
         String MASTER_KEY_ID = "master_key_id"; // not a database id
         String RANK = "rank";
@@ -51,11 +44,6 @@ public class KeychainContract {
         String EXPIRY = "expiry";
     }
 
-    public interface KeySignaturesColumns {
-        String MASTER_KEY_ID = "master_key_id"; // not a database id
-        String SIGNER_KEY_ID = "signer_key_id";
-    }
-
     public interface UserPacketsColumns {
         String MASTER_KEY_ID = "master_key_id"; // foreign key to key_rings._ID
         String TYPE = "type"; // not a database id
@@ -79,78 +67,15 @@ public class KeychainContract {
         String DATA = "data";
     }
 
-    public interface ApiAppsAllowedKeysColumns {
-        String KEY_ID = "key_id"; // not a database id
-        String PACKAGE_NAME = "package_name"; // foreign key to api_apps.package_name
-    }
-
-    public interface OverriddenWarnings {
-        String IDENTIFIER = "identifier";
-    }
-
-    public static final String CONTENT_AUTHORITY = Constants.PROVIDER_AUTHORITY;
-
-    private static final Uri BASE_CONTENT_URI_INTERNAL = Uri
-            .parse("content://" + CONTENT_AUTHORITY);
-
-    public static final String BASE_KEY_RINGS = "key_rings";
-
-    public static final String BASE_KEY_SIGNATURES = "key_signatures";
-
-    public static final String PATH_PUBLIC = "public";
-    public static final String PATH_USER_IDS = "user_ids";
-    public static final String PATH_KEYS = "keys";
-    public static final String PATH_CERTS = "certs";
-
-    public static class KeyRings implements BaseColumns, KeysColumns, UserPacketsColumns {
-        public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
-                .appendPath(BASE_KEY_RINGS).build();
-    }
-
-    public static class KeyRingData implements KeyRingsColumns, BaseColumns {
-        public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
-                .appendPath(BASE_KEY_RINGS).build();
-
-        public static Uri buildPublicKeyRingUri(long masterKeyId) {
-            return CONTENT_URI.buildUpon().appendPath(Long.toString(masterKeyId)).appendPath(PATH_PUBLIC).build();
-        }
-    }
-
     public static class Keys implements KeysColumns, BaseColumns {
-        public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
-                .appendPath(BASE_KEY_RINGS).build();
-
-        public static Uri buildKeysUri(long masterKeyId) {
-            return CONTENT_URI.buildUpon().appendPath(Long.toString(masterKeyId)).appendPath(PATH_KEYS).build();
-        }
-
-    }
-
-    public static class KeySignatures implements KeySignaturesColumns, BaseColumns {
-        public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
-                .appendPath(BASE_KEY_SIGNATURES).build();
     }
 
     public static class UserPackets implements UserPacketsColumns, BaseColumns {
-        public static final String VERIFIED = "verified";
-        public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
-                .appendPath(BASE_KEY_RINGS).build();
-
-        public static Uri buildUserIdsUri(long masterKeyId) {
-            return CONTENT_URI.buildUpon().appendPath(Long.toString(masterKeyId)).appendPath(PATH_USER_IDS).build();
-        }
     }
 
     public static class Certs implements CertsColumns, BaseColumns {
         public static final int VERIFIED_SECRET = 1;
         public static final int VERIFIED_SELF = 2;
-
-        public static final Uri CONTENT_URI = BASE_CONTENT_URI_INTERNAL.buildUpon()
-                .appendPath(BASE_KEY_RINGS).build();
-
-        public static Uri buildCertsUri(long masterKeyId) {
-            return CONTENT_URI.buildUpon().appendPath(Long.toString(masterKeyId)).appendPath(PATH_CERTS).build();
-        }
     }
 
     private KeychainContract() {

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

@@ -38,19 +38,6 @@ public class KeychainExternalContract {
     public static final int KEY_STATUS_UNVERIFIED = 1;
     public static final int KEY_STATUS_VERIFIED = 2;
 
-    public static class EmailStatus implements BaseColumns {
-        public static final String EMAIL_ADDRESS = "email_address";
-        public static final String USER_ID = "user_id";
-        public static final String USER_ID_STATUS = "email_status";
-        public static final String MASTER_KEY_ID = "master_key_id";
-
-        public static final Uri CONTENT_URI = BASE_CONTENT_URI_EXTERNAL.buildUpon()
-                .appendPath(BASE_EMAIL_STATUS).build();
-
-        public static final String CONTENT_TYPE
-                = "vnd.android.cursor.dir/vnd.org.sufficientlysecure.keychain.provider.email_status";
-    }
-
     public static class AutocryptStatus implements BaseColumns {
         public static final String ADDRESS = "address";
 
@@ -72,9 +59,6 @@ public class KeychainExternalContract {
 
         public static final Uri CONTENT_URI = BASE_CONTENT_URI_EXTERNAL.buildUpon()
                 .appendPath(BASE_AUTOCRYPT_STATUS).build();
-
-        public static final String CONTENT_TYPE =
-                "vnd.android.cursor.dir/vnd.org.sufficientlysecure.keychain.provider.email_status";
     }
 
     private KeychainExternalContract() {

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

@@ -1,225 +1,48 @@
-/*
- * Copyright (C) 2017 Schürmann & Breitmoser GbR
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
 package org.sufficientlysecure.keychain.provider;
 
 
-import android.arch.persistence.db.SupportSQLiteDatabase;
 import android.content.ContentProvider;
 import android.content.ContentValues;
-import android.content.UriMatcher;
 import android.database.Cursor;
-import android.database.sqlite.SQLiteConstraintException;
-import android.database.sqlite.SQLiteDatabase;
 import android.net.Uri;
 import android.support.annotation.NonNull;
-import android.text.TextUtils;
-
-import org.sufficientlysecure.keychain.KeychainDatabase;
-import org.sufficientlysecure.keychain.daos.DatabaseNotifyManager;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeySignatures;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserPacketsColumns;
-import org.sufficientlysecure.keychain.KeychainDatabase.Tables;
-import timber.log.Timber;
+import android.support.annotation.Nullable;
 
 
 public class KeychainProvider extends ContentProvider {
-    private static final int KEY_RING_KEYS = 201;
-    private static final int KEY_RING_USER_IDS = 202;
-    private static final int KEY_RING_PUBLIC = 203;
-    private static final int KEY_RING_CERTS = 205;
-
-    private static final int KEY_SIGNATURES = 700;
-
-    protected UriMatcher mUriMatcher;
-
-    /**
-     * Build and return a {@link UriMatcher} that catches all {@link Uri} variations supported by
-     * this {@link ContentProvider}.
-     */
-    protected UriMatcher buildUriMatcher() {
-        final UriMatcher matcher = new UriMatcher(UriMatcher.NO_MATCH);
-
-        String authority = KeychainContract.CONTENT_AUTHORITY;
-
-        /*
-         * list key_ring specifics
-         *
-         * <pre>
-         * key_rings/_/keys
-         * key_rings/_/user_ids
-         * key_rings/_/public
-         * key_rings/_/certs
-         * </pre>
-         */
-        matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
-                + KeychainContract.PATH_KEYS,
-                KEY_RING_KEYS);
-        matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
-                + KeychainContract.PATH_USER_IDS,
-                KEY_RING_USER_IDS);
-        matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
-                + KeychainContract.PATH_PUBLIC,
-                KEY_RING_PUBLIC);
-        matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
-                + KeychainContract.PATH_CERTS,
-                KEY_RING_CERTS);
-
-        matcher.addURI(authority, KeychainContract.BASE_KEY_SIGNATURES, KEY_SIGNATURES);
-
-
-        return matcher;
-    }
-
-    private KeychainDatabase mKeychainDatabase;
 
     @Override
     public boolean onCreate() {
-        mUriMatcher = buildUriMatcher();
-        return true;
+        return false;
     }
 
-    public KeychainDatabase getDb() {
-        if(mKeychainDatabase == null) {
-            mKeychainDatabase = KeychainDatabase.getInstance(getContext());
-        }
-        return mKeychainDatabase;
+    @Nullable
+    @Override
+    public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection,
+            @Nullable String[] selectionArgs, @Nullable String sortOrder) {
+        throw new UnsupportedOperationException();
     }
 
+    @Nullable
     @Override
     public String getType(@NonNull Uri uri) {
         throw new UnsupportedOperationException();
     }
 
+    @Nullable
     @Override
-    public Cursor query(
-            @NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
-        throw new UnsupportedOperationException();
-    }
-
-    /**
-     * {@inheritDoc}
-     */
-    @Override
-    public Uri insert(@NonNull Uri uri, ContentValues values) {
-        Timber.d("insert(uri=" + uri + ", values=" + values.toString() + ")");
-
-        final SupportSQLiteDatabase db = getDb().getWritableDatabase();
-
-        Uri rowUri = null;
-        Long keyId = null;
-        try {
-            final int match = mUriMatcher.match(uri);
-
-            switch (match) {
-                case KEY_RING_PUBLIC: {
-                    db.insert(Tables.KEY_RINGS_PUBLIC, SQLiteDatabase.CONFLICT_FAIL, values);
-                    keyId = values.getAsLong(Keys.MASTER_KEY_ID);
-                    break;
-                }
-                case KEY_RING_KEYS: {
-                    db.insert(Tables.KEYS, SQLiteDatabase.CONFLICT_FAIL, values);
-                    keyId = values.getAsLong(Keys.MASTER_KEY_ID);
-                    break;
-                }
-                case KEY_RING_USER_IDS: {
-                    // iff TYPE is null, user_id MUST be null as well
-                    if (!(values.get(UserPacketsColumns.TYPE) == null
-                            ? (values.get(UserPacketsColumns.USER_ID) != null && values.get(UserPacketsColumns.ATTRIBUTE_DATA) == null)
-                            : (values.get(UserPacketsColumns.ATTRIBUTE_DATA) != null && values.get(UserPacketsColumns.USER_ID) == null)
-                    )) {
-                        throw new AssertionError("Incorrect type for user packet! This is a bug!");
-                    }
-                    if (((Number) values.get(UserPacketsColumns.RANK)).intValue() == 0 && values.get(UserPacketsColumns.USER_ID) == null) {
-                        throw new AssertionError("Rank 0 user packet must be a user id!");
-                    }
-                    db.insert(Tables.USER_PACKETS, SQLiteDatabase.CONFLICT_FAIL, values);
-                    keyId = values.getAsLong(UserPackets.MASTER_KEY_ID);
-                    break;
-                }
-                case KEY_RING_CERTS: {
-                    // we replace here, keeping only the latest signature
-                    // TODO this would be better handled in savePublicKeyRing directly!
-                    db.insert(Tables.CERTS, SQLiteDatabase.CONFLICT_FAIL, values);
-                    keyId = values.getAsLong(Certs.MASTER_KEY_ID);
-                    break;
-                }
-                case KEY_SIGNATURES: {
-                    db.insert(Tables.KEY_SIGNATURES, SQLiteDatabase.CONFLICT_FAIL, values);
-                    rowUri = KeySignatures.CONTENT_URI;
-                    break;
-                }
-                default: {
-                    throw new UnsupportedOperationException("Unknown uri: " + uri);
-                }
-            }
-
-            if (keyId != null) {
-                uri = DatabaseNotifyManager.getNotifyUriMasterKeyId(keyId);
-                rowUri = uri;
-            }
-
-        } catch (SQLiteConstraintException e) {
-            Timber.d(e, "Constraint exception on insert! Entry already existing?");
-        }
-
-        return rowUri;
-    }
-
-    @Override
-    public int delete(@NonNull Uri uri, String additionalSelection, String[] selectionArgs) {
+    public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) {
         throw new UnsupportedOperationException();
     }
 
     @Override
-    public int update(@NonNull Uri uri, ContentValues values, String selection, String[] selectionArgs) {
-        Timber.v("update(uri=" + uri + ", values=" + values.toString() + ")");
+    public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs) {
+        throw new UnsupportedOperationException();
+    }
 
-        final SupportSQLiteDatabase db = getDb().getWritableDatabase();
-
-        int count = 0;
-        try {
-            final int match = mUriMatcher.match(uri);
-            switch (match) {
-                case KEY_RING_KEYS: {
-                    if (values.size() != 1 || !values.containsKey(Keys.HAS_SECRET)) {
-                        throw new UnsupportedOperationException(
-                                "Only has_secret column may be updated!");
-                    }
-                    // make sure we get a long value here
-                    Long mkid = Long.parseLong(uri.getPathSegments().get(1));
-                    String actualSelection = Keys.MASTER_KEY_ID + " = " + Long.toString(mkid);
-                    if (!TextUtils.isEmpty(selection)) {
-                        actualSelection += " AND (" + selection + ")";
-                    }
-                    count = db.update(Tables.KEYS, SQLiteDatabase.CONFLICT_FAIL, values, actualSelection, selectionArgs);
-                    break;
-                }
-                default: {
-                    throw new UnsupportedOperationException("Unknown uri: " + uri);
-                }
-            }
-        } catch (SQLiteConstraintException e) {
-            Timber.d(e, "Constraint exception on update! Entry already existing?");
-        }
-
-        return count;
+    @Override
+    public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection,
+            @Nullable String[] selectionArgs) {
+        throw new UnsupportedOperationException();
     }
 }

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

@@ -3,8 +3,11 @@ package org.sufficientlysecure.keychain.remote;
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 import android.content.Context;
 import android.support.annotation.Nullable;
@@ -146,15 +149,15 @@ public class AutocryptInteractor {
         return uncachedKeyRing;
     }
 
-    public List<AutocryptRecommendationResult> determineAutocryptRecommendations(String... autocryptIds) {
-        List<AutocryptRecommendationResult> result = new ArrayList<>(autocryptIds.length);
+    public Map<String,AutocryptRecommendationResult> determineAutocryptRecommendations(String... autocryptIds) {
+        Map<String,AutocryptRecommendationResult> result = new HashMap<>(autocryptIds.length);
 
         for (AutocryptKeyStatus autocryptKeyStatus : autocryptPeerDao.getAutocryptKeyStatus(packageName, autocryptIds)) {
             AutocryptRecommendationResult peerResult = determineAutocryptRecommendation(autocryptKeyStatus);
-            result.add(peerResult);
+            result.put(peerResult.peerId, peerResult);
         }
 
-        return result;
+        return Collections.unmodifiableMap(result);
     }
 
     /** Determines Autocrypt "ui-recommendation", according to spec.

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

@@ -20,34 +20,28 @@ package org.sufficientlysecure.keychain.remote;
 
 import java.security.AccessControlException;
 import java.util.Arrays;
-import java.util.HashMap;
+import java.util.Collections;
 import java.util.List;
+import java.util.Map;
 
-import android.arch.persistence.db.SupportSQLiteDatabase;
 import android.content.ContentProvider;
 import android.content.ContentValues;
 import android.content.Context;
 import android.content.UriMatcher;
 import android.database.Cursor;
-import android.database.DatabaseUtils;
-import android.database.sqlite.SQLiteDatabase;
-import android.database.sqlite.SQLiteQueryBuilder;
+import android.database.MatrixCursor;
 import android.net.Uri;
 import android.support.annotation.NonNull;
-import android.text.TextUtils;
+import android.widget.Toast;
 
 import org.sufficientlysecure.keychain.BuildConfig;
-import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.daos.ApiAppDao;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
-import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
-import org.sufficientlysecure.keychain.KeychainDatabase;
-import org.sufficientlysecure.keychain.KeychainDatabase.Tables;
+import org.sufficientlysecure.keychain.daos.DatabaseNotifyManager;
+import org.sufficientlysecure.keychain.daos.UserIdDao;
+import org.sufficientlysecure.keychain.model.UserPacket.UidStatus;
+import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing.VerificationStatus;
 import org.sufficientlysecure.keychain.provider.KeychainExternalContract;
 import org.sufficientlysecure.keychain.provider.KeychainExternalContract.AutocryptStatus;
-import org.sufficientlysecure.keychain.provider.KeychainExternalContract.EmailStatus;
 import org.sufficientlysecure.keychain.remote.AutocryptInteractor.AutocryptRecommendationResult;
 import org.sufficientlysecure.keychain.remote.AutocryptInteractor.AutocryptState;
 import timber.log.Timber;
@@ -59,39 +53,23 @@ public class KeychainExternalProvider extends ContentProvider {
     private static final int AUTOCRYPT_STATUS = 201;
     private static final int AUTOCRYPT_STATUS_INTERNAL = 202;
 
-    public static final String TEMP_TABLE_QUERIED_ADDRESSES = "queried_addresses";
-    public static final String TEMP_TABLE_COLUMN_ADDRES = "address";
-
 
     private UriMatcher uriMatcher;
     private ApiPermissionHelper apiPermissionHelper;
 
 
-    /**
-     * Build and return a {@link UriMatcher} that catches all {@link Uri} variations supported by
-     * this {@link ContentProvider}.
-     */
     protected UriMatcher buildUriMatcher() {
         final UriMatcher matcher = new UriMatcher(UriMatcher.NO_MATCH);
 
         String authority = KeychainExternalContract.CONTENT_AUTHORITY_EXTERNAL;
 
-        /*
-         * list email_status
-         *
-         * <pre>
-         * email_status/
-         * </pre>
-         */
         matcher.addURI(authority, KeychainExternalContract.BASE_EMAIL_STATUS, EMAIL_STATUS);
-
         matcher.addURI(authority, KeychainExternalContract.BASE_AUTOCRYPT_STATUS, AUTOCRYPT_STATUS);
         matcher.addURI(authority, KeychainExternalContract.BASE_AUTOCRYPT_STATUS + "/*", AUTOCRYPT_STATUS_INTERNAL);
 
         return matcher;
     }
 
-    /** {@inheritDoc} */
     @Override
     public boolean onCreate() {
         uriMatcher = buildUriMatcher();
@@ -105,104 +83,22 @@ public class KeychainExternalProvider extends ContentProvider {
         return true;
     }
 
-    /**
-     * {@inheritDoc}
-     */
-    @Override
-    public String getType(@NonNull Uri uri) {
-        final int match = uriMatcher.match(uri);
-        switch (match) {
-            case EMAIL_STATUS:
-                return EmailStatus.CONTENT_TYPE;
-            default:
-                throw new UnsupportedOperationException("Unknown uri: " + uri);
-        }
-    }
-
-    /**
-     * {@inheritDoc}
-     */
     @Override
     public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs,
                         String sortOrder) {
         Timber.v("query(uri=" + uri + ", proj=" + Arrays.toString(projection) + ")");
-        long startTime = System.currentTimeMillis();
-
-        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
-
-        int match = uriMatcher.match(uri);
-
-        String groupBy = null;
-
-        SupportSQLiteDatabase db = KeychainDatabase.getTemporaryInstance(getContext()).getReadableDatabase();
+        Context context = getContext();
+        if (context == null) {
+            throw new IllegalStateException();
+        }
 
         String callingPackageName = apiPermissionHelper.getCurrentCallingPackage();
 
+        int match = uriMatcher.match(uri);
         switch (match) {
             case EMAIL_STATUS: {
-                boolean callerIsAllowed = apiPermissionHelper.isAllowedIgnoreErrors();
-                if (!callerIsAllowed) {
-                    throw new AccessControlException("An application must register before use of KeychainExternalProvider!");
-                }
-
-                db.execSQL("CREATE TEMPORARY TABLE " + TEMP_TABLE_QUERIED_ADDRESSES + " (" + TEMP_TABLE_COLUMN_ADDRES + " TEXT);");
-                ContentValues cv = new ContentValues();
-                for (String address : selectionArgs) {
-                    cv.put(TEMP_TABLE_COLUMN_ADDRES, address);
-                    db.insert(TEMP_TABLE_QUERIED_ADDRESSES, SQLiteDatabase.CONFLICT_FAIL, cv);
-                }
-
-                HashMap<String, String> projectionMap = new HashMap<>();
-                projectionMap.put(EmailStatus._ID, "email AS _id");
-                projectionMap.put(EmailStatus.EMAIL_ADDRESS, // this is actually the queried address
-                        TEMP_TABLE_QUERIED_ADDRESSES + "." + TEMP_TABLE_COLUMN_ADDRES + " AS " + EmailStatus.EMAIL_ADDRESS);
-                projectionMap.put(EmailStatus.USER_ID,
-                        Tables.USER_PACKETS + "." + UserPackets.USER_ID + " AS " + EmailStatus.USER_ID);
-                // we take the minimum (>0) here, where "1" is "verified by known secret key", "2" is "self-certified"
-                projectionMap.put(EmailStatus.USER_ID_STATUS, "CASE ( MIN (" + Certs.VERIFIED + " ) ) "
-                        // remap to keep this provider contract independent from our internal representation
-                        + " WHEN " + Certs.VERIFIED_SELF + " THEN " + KeychainExternalContract.KEY_STATUS_UNVERIFIED
-                        + " WHEN " + Certs.VERIFIED_SECRET + " THEN " + KeychainExternalContract.KEY_STATUS_VERIFIED
-                        + " WHEN NULL THEN " + KeychainExternalContract.KEY_STATUS_UNVERIFIED
-                        + " END AS " + EmailStatus.USER_ID_STATUS);
-                projectionMap.put(EmailStatus.MASTER_KEY_ID,
-                        Tables.USER_PACKETS + "." + UserPackets.MASTER_KEY_ID + " AS " + EmailStatus.MASTER_KEY_ID);
-                qb.setProjectionMap(projectionMap);
-
-                if (projection == null) {
-                    throw new IllegalArgumentException("Please provide a projection!");
-                }
-
-                qb.setTables(
-                        TEMP_TABLE_QUERIED_ADDRESSES
-                                + " LEFT JOIN " + Tables.USER_PACKETS + " ON ("
-                                + Tables.USER_PACKETS + "." + UserPackets.USER_ID + " IS NOT NULL"
-                                + " AND " + Tables.USER_PACKETS + "." + UserPackets.EMAIL + " LIKE " + TEMP_TABLE_QUERIED_ADDRESSES + "." + TEMP_TABLE_COLUMN_ADDRES
-                                + ")"
-                                + " LEFT JOIN " + Tables.CERTS + " ON ("
-                                + Tables.USER_PACKETS + "." + UserPackets.MASTER_KEY_ID + " = " + Tables.CERTS + "." + Certs.MASTER_KEY_ID
-                                + " AND " + Tables.USER_PACKETS + "." + UserPackets.RANK + " = " + Tables.CERTS + "." + Certs.RANK
-                                + ")"
-                );
-                // in case there are multiple verifying certificates
-                groupBy = TEMP_TABLE_QUERIED_ADDRESSES + "." + TEMP_TABLE_COLUMN_ADDRES;
-                List<String> plist = Arrays.asList(projection);
-                if (plist.contains(EmailStatus.USER_ID)) {
-                    groupBy += ", " + Tables.USER_PACKETS + "." + UserPackets.USER_ID;
-                }
-
-                // verified == 0 has no self-cert, which is basically an error case. never return that!
-                // verified == null is fine, because it means there was no join partner
-                qb.appendWhere(Tables.CERTS + "." + Certs.VERIFIED + " IS NULL OR " + Tables.CERTS + "." + Certs.VERIFIED + " > 0");
-
-                if (TextUtils.isEmpty(sortOrder)) {
-                    sortOrder = EmailStatus.EMAIL_ADDRESS;
-                }
-
-                // uri to watch is all /key_rings/
-                uri = KeyRings.CONTENT_URI;
-
-                break;
+                Toast.makeText(context, "This API is no longer supported by OpenKeychain!", Toast.LENGTH_SHORT).show();
+                return new MatrixCursor(projection);
             }
 
             case AUTOCRYPT_STATUS_INTERNAL:
@@ -223,164 +119,127 @@ public class KeychainExternalProvider extends ContentProvider {
                     throw new IllegalArgumentException("Please provide a projection!");
                 }
 
-                db.execSQL("CREATE TEMPORARY TABLE " + TEMP_TABLE_QUERIED_ADDRESSES + " (" +
-                        TEMP_TABLE_COLUMN_ADDRES + " TEXT NOT NULL PRIMARY KEY, " +
-                        AutocryptStatus.UID_KEY_STATUS + " INT, " +
-                        AutocryptStatus.UID_ADDRESS + " TEXT, " +
-                        AutocryptStatus.UID_MASTER_KEY_ID + " INT, " +
-                        AutocryptStatus.UID_CANDIDATES + " INT, " +
-                        AutocryptStatus.AUTOCRYPT_PEER_STATE + " INT DEFAULT " + AutocryptStatus.AUTOCRYPT_PEER_DISABLED + ", " +
-                        AutocryptStatus.AUTOCRYPT_KEY_STATUS + " INT, " +
-                        AutocryptStatus.AUTOCRYPT_MASTER_KEY_ID + " INT" +
-                        ");");
-                ContentValues cv = new ContentValues();
-                for (String address : selectionArgs) {
-                    cv.put(TEMP_TABLE_COLUMN_ADDRES, address);
-                    db.insert(TEMP_TABLE_QUERIED_ADDRESSES, SQLiteDatabase.CONFLICT_FAIL, cv);
-                }
-
-                boolean isWildcardSelector = selectionArgs.length == 1 && selectionArgs[0].contains("%");
-
                 List<String> plist = Arrays.asList(projection);
-
+                boolean isWildcardSelector = selectionArgs.length == 1 && selectionArgs[0].contains("%");
                 boolean queriesUidResult = plist.contains(AutocryptStatus.UID_KEY_STATUS) ||
                         plist.contains(AutocryptStatus.UID_ADDRESS) ||
                         plist.contains(AutocryptStatus.UID_MASTER_KEY_ID) ||
                         plist.contains(AutocryptStatus.UID_CANDIDATES);
-                if (queriesUidResult) {
-                    fillTempTableWithUidResult(db, isWildcardSelector);
-                }
-
                 boolean queriesAutocryptResult = plist.contains(AutocryptStatus.AUTOCRYPT_PEER_STATE) ||
                         plist.contains(AutocryptStatus.AUTOCRYPT_MASTER_KEY_ID) ||
                         plist.contains(AutocryptStatus.AUTOCRYPT_KEY_STATUS);
                 if (isWildcardSelector && queriesAutocryptResult) {
                     throw new UnsupportedOperationException("Cannot wildcard-query autocrypt results!");
                 }
-                if (!isWildcardSelector && queriesAutocryptResult) {
-                    AutocryptInteractor autocryptInteractor =
-                            AutocryptInteractor.getInstance(getContext(), callingPackageName);
-                    fillTempTableWithAutocryptRecommendations(db, autocryptInteractor, selectionArgs);
-                }
 
-                HashMap<String, String> projectionMap = new HashMap<>();
-                projectionMap.put(AutocryptStatus._ID, AutocryptStatus._ID);
-                projectionMap.put(AutocryptStatus.ADDRESS, AutocryptStatus.ADDRESS);
-                projectionMap.put(AutocryptStatus.UID_KEY_STATUS, AutocryptStatus.UID_KEY_STATUS);
-                projectionMap.put(AutocryptStatus.UID_ADDRESS, AutocryptStatus.UID_ADDRESS);
-                projectionMap.put(AutocryptStatus.UID_MASTER_KEY_ID, AutocryptStatus.UID_MASTER_KEY_ID);
-                projectionMap.put(AutocryptStatus.UID_CANDIDATES, AutocryptStatus.UID_CANDIDATES);
-                projectionMap.put(AutocryptStatus.AUTOCRYPT_PEER_STATE, AutocryptStatus.AUTOCRYPT_PEER_STATE);
-                projectionMap.put(AutocryptStatus.AUTOCRYPT_KEY_STATUS, AutocryptStatus.AUTOCRYPT_KEY_STATUS);
-                projectionMap.put(AutocryptStatus.AUTOCRYPT_MASTER_KEY_ID, AutocryptStatus.AUTOCRYPT_MASTER_KEY_ID);
-                qb.setProjectionMap(projectionMap);
-                qb.setTables(TEMP_TABLE_QUERIED_ADDRESSES);
+                Map<String, UidStatus> uidStatuses = queriesUidResult ?
+                        loadUidStatusMap(selectionArgs, isWildcardSelector) : Collections.emptyMap();
+                Map<String, AutocryptRecommendationResult> autocryptStates = queriesAutocryptResult ?
+                        loadAutocryptRecommendationMap(selectionArgs, callingPackageName) : Collections.emptyMap();
 
-                if (TextUtils.isEmpty(sortOrder)) {
-                    sortOrder = AutocryptStatus.ADDRESS;
-                }
+                MatrixCursor cursor =
+                        mapResultsToProjectedMatrixCursor(projection, selectionArgs, uidStatuses, autocryptStates);
 
-                // uri to watch is all /key_rings/
-                uri = KeyRings.CONTENT_URI;
-                break;
+                uri = DatabaseNotifyManager.getNotifyUriAllKeys();
+                cursor.setNotificationUri(context.getContentResolver(), uri);
+
+                return cursor;
             }
 
             default: {
                 throw new IllegalArgumentException("Unknown URI " + uri + " (" + match + ")");
             }
-
         }
+    }
 
-        // If no sort order is specified use the default
-        String orderBy;
-        if (TextUtils.isEmpty(sortOrder)) {
-            orderBy = null;
-        } else {
-            orderBy = sortOrder;
-        }
+    @NonNull
+    private MatrixCursor mapResultsToProjectedMatrixCursor(String[] projection, String[] selectionArgs,
+            Map<String, UidStatus> uidStatuses, Map<String, AutocryptRecommendationResult> autocryptStates) {
+        MatrixCursor cursor = new MatrixCursor(projection);
+        for (String selectionArg : selectionArgs) {
+            AutocryptRecommendationResult autocryptResult = autocryptStates.get(selectionArg);
+            UidStatus uidStatus = uidStatuses.get(selectionArg);
 
-        qb.setStrict(true);
-        String query = qb.buildQuery(projection, null, groupBy, null, orderBy, null);
-        Cursor cursor = db.query(query);
-        if (cursor != null) {
-            // Tell the cursor what uri to watch, so it knows when its source data changes
-            cursor.setNotificationUri(getContext().getContentResolver(), uri);
-            if (Constants.DEBUG_LOG_DB_QUERIES) {
-                DatabaseUtils.dumpCursor(cursor);
+            Object[] row = new Object[projection.length];
+            for (int i = 0; i < projection.length; i++) {
+                if (AutocryptStatus.ADDRESS.equals(projection[i]) || AutocryptStatus._ID.equals(projection[i])) {
+                    row[i] = selectionArg;
+                } else {
+                    row[i] = columnNameToRowContent(projection[i], autocryptResult, uidStatus);
+                }
             }
+            cursor.addRow(row);
         }
-
-        Timber.d("Query: " + qb.buildQuery(projection, selection, groupBy, null, orderBy, null));
-        Timber.d(Constants.TAG, "Query took %s ms", (System.currentTimeMillis() - startTime));
-
         return cursor;
     }
 
-    private void fillTempTableWithAutocryptRecommendations(SupportSQLiteDatabase db,
-            AutocryptInteractor autocryptInteractor, String[] peerIds) {
-        List<AutocryptRecommendationResult> autocryptStates =
-                autocryptInteractor.determineAutocryptRecommendations(peerIds);
-
-        fillTempTableWithAutocryptRecommendations(db, autocryptStates);
-    }
-
-    private void fillTempTableWithAutocryptRecommendations(SupportSQLiteDatabase db,
-            List<AutocryptRecommendationResult> autocryptRecommendations) {
-        ContentValues cv = new ContentValues();
-        for (AutocryptRecommendationResult peerResult : autocryptRecommendations) {
-            cv.clear();
-
-            cv.put(AutocryptStatus.AUTOCRYPT_PEER_STATE, getPeerStateValue(peerResult.autocryptState));
-            if (peerResult.masterKeyId != null) {
-                cv.put(AutocryptStatus.AUTOCRYPT_MASTER_KEY_ID, peerResult.masterKeyId);
-                cv.put(AutocryptStatus.AUTOCRYPT_KEY_STATUS, peerResult.isVerified ?
+    private Object columnNameToRowContent(
+            String columnName, AutocryptRecommendationResult autocryptResult, UidStatus uidStatus) {
+        switch (columnName) {
+            case AutocryptStatus.UID_KEY_STATUS: {
+                if (uidStatus == null) {
+                    return null;
+                }
+                return uidStatus.keyStatus() == VerificationStatus.VERIFIED_SECRET ?
                         KeychainExternalContract.KEY_STATUS_VERIFIED :
-                        KeychainExternalContract.KEY_STATUS_UNVERIFIED);
+                        KeychainExternalContract.KEY_STATUS_UNVERIFIED;
             }
+            case AutocryptStatus.UID_ADDRESS:
+                if (uidStatus == null) {
+                    return null;
+                }
+                return uidStatus.user_id();
 
-            db.update(TEMP_TABLE_QUERIED_ADDRESSES, SQLiteDatabase.CONFLICT_IGNORE, cv,TEMP_TABLE_COLUMN_ADDRES + "=?",
-                    new String[] { peerResult.peerId });
+            case AutocryptStatus.UID_MASTER_KEY_ID:
+                if (uidStatus == null) {
+                    return null;
+                }
+                return uidStatus.master_key_id();
+
+            case AutocryptStatus.UID_CANDIDATES:
+                if (uidStatus == null) {
+                    return null;
+                }
+                return uidStatus.candidates();
+
+            case AutocryptStatus.AUTOCRYPT_PEER_STATE:
+                if (autocryptResult == null) {
+                    return null;
+                }
+                return getPeerStateValue(autocryptResult.autocryptState);
+
+            case AutocryptStatus.AUTOCRYPT_KEY_STATUS:
+                if (autocryptResult == null) {
+                    return null;
+                }
+                return autocryptResult.isVerified ?
+                        KeychainExternalContract.KEY_STATUS_VERIFIED : KeychainExternalContract.KEY_STATUS_UNVERIFIED;
+
+            case AutocryptStatus.AUTOCRYPT_MASTER_KEY_ID:
+                if (autocryptResult == null) {
+                    return null;
+                }
+                return autocryptResult.masterKeyId;
+
+            default:
+                throw new IllegalArgumentException("Unhandled case " + columnName);
         }
     }
 
-    private void fillTempTableWithUidResult(SupportSQLiteDatabase db, boolean isWildcardSelector) {
-        String cmpOperator = isWildcardSelector ? " LIKE " : " = ";
-        long unixSeconds = System.currentTimeMillis() / 1000;
-        db.execSQL("REPLACE INTO " + TEMP_TABLE_QUERIED_ADDRESSES +
-                "(" + TEMP_TABLE_COLUMN_ADDRES + ", " + AutocryptStatus.UID_KEY_STATUS + ", " +
-                AutocryptStatus.UID_ADDRESS + ", " + AutocryptStatus.UID_MASTER_KEY_ID
-                + ", " + AutocryptStatus.UID_CANDIDATES + ")" +
-                " SELECT " + TEMP_TABLE_COLUMN_ADDRES + ", " +
-                "CASE ( MIN (" + Tables.CERTS + "." + Certs.VERIFIED + " ) ) "
-                // remap to keep this provider contract independent from our internal representation
-                + " WHEN " + Certs.VERIFIED_SELF + " THEN " + KeychainExternalContract.KEY_STATUS_UNVERIFIED
-                + " WHEN " + Certs.VERIFIED_SECRET + " THEN " + KeychainExternalContract.KEY_STATUS_VERIFIED
-                + " END AS " + AutocryptStatus.UID_KEY_STATUS
-                + ", " + Tables.USER_PACKETS + "." + UserPackets.USER_ID
-                + ", " + Tables.USER_PACKETS + "." + UserPackets.MASTER_KEY_ID
-                + ", COUNT(DISTINCT " + Tables.USER_PACKETS + "." + UserPackets.MASTER_KEY_ID + ")"
-                + " FROM " + TEMP_TABLE_QUERIED_ADDRESSES
-                + " LEFT JOIN " + Tables.USER_PACKETS + " ON ("
-                + Tables.USER_PACKETS + "." + UserPackets.EMAIL + cmpOperator +
-                TEMP_TABLE_QUERIED_ADDRESSES + "." + TEMP_TABLE_COLUMN_ADDRES
-                + ")"
-                + " LEFT JOIN " + Tables.CERTS + " ON ("
-                + Tables.CERTS + "." + Certs.MASTER_KEY_ID + " = " + Tables.USER_PACKETS + "." +
-                UserPackets.MASTER_KEY_ID
-                + " AND " + Tables.CERTS + "." + Certs.RANK + " = " + Tables.USER_PACKETS + "." +
-                UserPackets.RANK
-                + " AND " + Tables.CERTS + "." + Certs.VERIFIED + " > 0"
-                + ")"
-                + " WHERE (EXISTS (SELECT 1 FROM " + Tables.KEYS + " WHERE "
-                + Tables.KEYS + "." + Keys.KEY_ID + " = " + Tables.USER_PACKETS + "." +
-                UserPackets.MASTER_KEY_ID
-                + " AND " + Tables.KEYS + "." + Keys.RANK + " = 0"
-                + " AND " + Tables.KEYS + "." + Keys.IS_REVOKED + " = 0"
-                + " AND NOT " + "(" + Tables.KEYS + "." + Keys.EXPIRY + " IS NOT NULL AND " + Tables.KEYS +
-                "." + Keys.EXPIRY
-                + " < " + unixSeconds + ")"
-                + ")) OR " + Tables.USER_PACKETS + "." + UserPackets.MASTER_KEY_ID + " IS NULL"
-                + " GROUP BY " + TEMP_TABLE_QUERIED_ADDRESSES + "." + TEMP_TABLE_COLUMN_ADDRES);
+    private Map<String, UidStatus> loadUidStatusMap(String[] selectionArgs, boolean isWildcardSelector) {
+        UserIdDao userIdDao = UserIdDao.getInstance(getContext());
+        if (isWildcardSelector) {
+            UidStatus uidStatus = userIdDao.getUidStatusByEmailLike(selectionArgs[0]);
+            return Collections.singletonMap(selectionArgs[0], uidStatus);
+        } else {
+            return userIdDao.getUidStatusByEmail(selectionArgs);
+        }
+    }
+
+    private Map<String, AutocryptRecommendationResult> loadAutocryptRecommendationMap(
+            String[] selectionArgs, String callingPackageName) {
+        AutocryptInteractor autocryptInteractor = AutocryptInteractor.getInstance(getContext(), callingPackageName);
+        return autocryptInteractor.determineAutocryptRecommendations(selectionArgs);
     }
 
     private int getPeerStateValue(AutocryptState autocryptState) {
@@ -394,6 +253,11 @@ public class KeychainExternalProvider extends ContentProvider {
         throw new IllegalStateException("Unhandled case!");
     }
 
+    @Override
+    public String getType(@NonNull Uri uri) {
+        throw new UnsupportedOperationException("Unknown uri: " + uri);
+    }
+
     @Override
     public Uri insert(@NonNull Uri uri, ContentValues values) {
         throw new UnsupportedOperationException();

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

@@ -52,8 +52,11 @@ import eu.davidea.flexibleadapter.FlexibleAdapter.OnItemClickListener;
 import eu.davidea.flexibleadapter.FlexibleAdapter.OnItemLongClickListener;
 import eu.davidea.flexibleadapter.SelectableAdapter.Mode;
 import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.KeychainDatabase;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
+import org.sufficientlysecure.keychain.daos.DatabaseNotifyManager;
+import org.sufficientlysecure.keychain.daos.KeyRepository;
 import org.sufficientlysecure.keychain.keysync.KeyserverSyncManager;
 import org.sufficientlysecure.keychain.model.SubKey.UnifiedKeyInfo;
 import org.sufficientlysecure.keychain.operations.KeySyncParcel;
@@ -61,9 +64,6 @@ import org.sufficientlysecure.keychain.operations.results.BenchmarkResult;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.pgp.PgpHelper;
-import org.sufficientlysecure.keychain.daos.KeyRepository;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.KeychainDatabase;
 import org.sufficientlysecure.keychain.service.BenchmarkInputParcel;
 import org.sufficientlysecure.keychain.ui.adapter.FlexibleKeyDetailsItem;
 import org.sufficientlysecure.keychain.ui.adapter.FlexibleKeyDummyItem;
@@ -492,7 +492,7 @@ public class KeyListFragment extends RecyclerFragment<FlexibleAdapter<FlexibleKe
                 try {
                     KeychainDatabase.debugBackup(getActivity(), true);
                     Notify.create(getActivity(), "Restored debug_backup.db", Notify.Style.OK).show();
-                    getActivity().getContentResolver().notifyChange(KeyRings.CONTENT_URI, null);
+                    DatabaseNotifyManager.create(requireContext()).notifyAllKeysChange();
                 } catch (IOException e) {
                     Timber.e(e, "IO Error");
                     Notify.create(getActivity(), "IO Error " + e.getMessage(), Notify.Style.ERROR).show();

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

@@ -44,7 +44,6 @@ import org.sufficientlysecure.keychain.model.SubKey.UnifiedKeyInfo;
 import org.sufficientlysecure.keychain.model.UserPacket.UserId;
 import org.sufficientlysecure.keychain.operations.results.EditKeyResult;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedKeyRing.VerificationStatus;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.ui.ViewKeyAdvActivity.ViewKeyAdvViewModel;
 import org.sufficientlysecure.keychain.ui.adapter.UserIdsAdapter;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/token/ManageSecurityTokenFragment.java

@@ -49,7 +49,6 @@ import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.operations.results.PromoteKeyResult;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.securitytoken.SecurityTokenInfo;
 import org.sufficientlysecure.keychain.service.ImportKeyringParcel;
 import org.sufficientlysecure.keychain.service.PromoteKeyringParcel;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/CertListWidget.java

@@ -19,12 +19,6 @@ package org.sufficientlysecure.keychain.ui.widget;
 
 
 import android.content.Context;
-import android.database.Cursor;
-import android.net.Uri;
-import android.os.Bundle;
-import android.support.v4.app.LoaderManager;
-import android.support.v4.content.CursorLoader;
-import android.support.v4.content.Loader;
 import android.text.format.DateUtils;
 import android.util.AttributeSet;
 import android.view.View;
@@ -34,8 +28,6 @@ import android.widget.ViewAnimator;
 
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.model.Certification.CertDetails;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
 
 public class CertListWidget extends ViewAnimator {
     private TextView vCollapsed;

OpenKeychain/src/main/sqldelight/org/sufficientlysecure/keychain/Certs.sq

@@ -14,6 +14,9 @@ CREATE TABLE IF NOT EXISTS certs(
     FOREIGN KEY(master_key_id, rank) REFERENCES user_packets(master_key_id, rank) ON DELETE CASCADE
 );
 
+insertCert:
+INSERT INTO certs VALUES (?, ?, ?, ?, ?, ?, ?);
+
 selectVerifyingCertDetails:
 SELECT master_key_id AS masterKeyId, key_id_certifier AS signerMasterKeyId, creation * 1000 AS creation
     FROM certs

OpenKeychain/src/main/sqldelight/org/sufficientlysecure/keychain/KeyRingsPublic.sq

@@ -3,6 +3,9 @@ CREATE TABLE IF NOT EXISTS keyrings_public (
     key_ring_data BLOB NULL
 );
 
+insertKeyRingPublic:
+INSERT INTO keyrings_public VALUES (?, ?);
+
 selectAllMasterKeyIds:
 SELECT master_key_id
     FROM keyrings_public;

OpenKeychain/src/main/sqldelight/org/sufficientlysecure/keychain/KeySignatures.sq

@@ -5,6 +5,9 @@ CREATE TABLE IF NOT EXISTS key_signatures (
     FOREIGN KEY(master_key_id) REFERENCES keyrings_public(master_key_id) ON DELETE CASCADE
 );
 
+insertKeySignature:
+INSERT INTO key_signatures VALUES (?, ?);
+
 selectMasterKeyIdsBySigner:
 SELECT master_key_id
    FROM key_signatures WHERE signer_key_id IN ?;

OpenKeychain/src/main/sqldelight/org/sufficientlysecure/keychain/Keys.sq

@@ -23,6 +23,25 @@ CREATE TABLE IF NOT EXISTS keys (
     keyrings_public(master_key_id) ON DELETE CASCADE
 );
 
+insertKey:
+INSERT INTO keys VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);
+
+updateHasSecretByMasterKeyId:
+UPDATE keys
+    SET has_secret = ?2
+    WHERE master_key_id = ?1;
+
+updateHasSecretByKeyId:
+UPDATE keys
+    SET has_secret = ?2
+    WHERE key_id = ?1;
+
+validKeysView:
+CREATE VIEW validMasterKeys AS
+SELECT *
+    FROM keys
+    WHERE rank = 0 AND is_revoked = 0 AND is_secure = 1 AND (expiry IS NULL OR expiry >= strftime('%s', 'now'));
+
 unifiedKeyView:
 CREATE VIEW unifiedKeyView AS
     SELECT keys.master_key_id, keys.fingerprint, MIN(user_packets.rank), user_packets.user_id, user_packets.name, user_packets.email, user_packets.comment, keys.creation, keys.expiry, keys.is_revoked, keys.is_secure, keys.can_certify, certs.verified,
@@ -86,11 +105,11 @@ SELECT fingerprint
 selectEffectiveSignKeyIdByMasterKeyId:
 SELECT key_id
     FROM keys
-    WHERE is_revoked = 0 AND is_secure = 1 AND has_secret > 1 AND ( expiry IS NULL OR expiry >= date('now') )
+    WHERE is_revoked = 0 AND is_secure = 1 AND has_secret > 1 AND ( expiry IS NULL OR expiry >= strftime('%s', 'now') )
         AND can_sign = 1 AND master_key_id = ?;
 
 selectEffectiveAuthKeyIdByMasterKeyId:
 SELECT key_id
     FROM keys
-    WHERE is_revoked = 0 AND is_secure = 1 AND has_secret > 1 AND ( expiry IS NULL OR expiry >= date('now') )
+    WHERE is_revoked = 0 AND is_secure = 1 AND has_secret > 1 AND ( expiry IS NULL OR expiry >= strftime('%s', 'now') )
         AND can_authenticate = 1 AND master_key_id = ?;

OpenKeychain/src/main/sqldelight/org/sufficientlysecure/keychain/UserPackets.sq

@@ -16,6 +16,9 @@ CREATE TABLE IF NOT EXISTS user_packets(
     keyrings_public(master_key_id) ON DELETE CASCADE
 );
 
+insertUserPacket:
+INSERT INTO user_packets VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);
+
 selectUserIdsByMasterKeyId:
 SELECT user_packets.master_key_id, user_packets.rank, user_id, name, email, comment, is_primary, is_revoked, MIN(certs.verified) AS verified_int
     FROM user_packets
@@ -46,3 +49,23 @@ SELECT user_packets.master_key_id, user_packets.rank, attribute_data, is_primary
         LEFT JOIN certs ON ( user_packets.master_key_id = certs.master_key_id AND user_packets.rank = certs.rank AND certs.verified > 0 )
     WHERE user_packets.type = ? AND user_packets.master_key_id = ? AND user_packets.rank = ?
     GROUP BY user_packets.master_key_id, user_packets.rank;
+
+
+uidStatus:
+CREATE VIEW uidStatus AS
+    SELECT user_packets.email, MIN(certs.verified) AS key_status_int, user_packets.user_id, user_packets.master_key_id, COUNT(DISTINCT user_packets.master_key_id) AS candidates
+    FROM user_packets
+        JOIN validMasterKeys USING (master_key_id)
+        LEFT JOIN certs ON (certs.master_key_id = user_packets.master_key_id AND certs.rank = user_packets.rank AND certs.verified > 0)
+    WHERE user_packets.email IS NOT NULL
+    GROUP BY user_packets.email;
+
+selectUserIdStatusByEmail:
+SELECT *
+FROM uidStatus
+    WHERE email IN ?;
+
+selectUserIdStatusByEmailLike:
+SELECT *
+FROM uidStatus
+    WHERE email LIKE ?;