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Fix issues with RecipientDatabase#update().

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This commit is contained in:
Greyson Parrelli 2019-12-05 11:41:47 -05:00
parent acfba9ac96
commit a16242b9f8
3 changed files with 147 additions and 21 deletions
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27
src/org/thoughtcrime/securesms/database/RecipientDatabase.java
View file

@ -8,6 +8,7 @@ import android.text.TextUtils;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.VisibleForTesting;
import com.annimon.stream.Stream;
import com.google.android.gms.common.util.ArrayUtils;
@ -26,9 +27,11 @@ import org.thoughtcrime.securesms.util.Base64;
import org.thoughtcrime.securesms.util.FeatureFlags;
import org.thoughtcrime.securesms.util.GroupUtil;
import org.thoughtcrime.securesms.util.IdentityUtil;
import org.thoughtcrime.securesms.util.SqlUtil;
import org.thoughtcrime.securesms.util.Util;
import org.whispersystems.libsignal.IdentityKey;
import org.whispersystems.libsignal.InvalidKeyException;
import org.whispersystems.libsignal.util.Pair;
import org.whispersystems.libsignal.util.guava.Optional;
import org.whispersystems.signalservice.api.push.SignalServiceAddress;
import org.whispersystems.signalservice.api.util.UuidUtil;
@ -1165,28 +1168,12 @@ public class RecipientDatabase extends Database {
*/
private boolean update(@NonNull RecipientId id, ContentValues contentValues) {
SQLiteDatabase database = databaseHelper.getWritableDatabase();
StringBuilder qualifier = new StringBuilder();
Set<Map.Entry<String, Object>> valueSet = contentValues.valueSet();
String[] args = new String[valueSet.size() + 1];
String selection = ID + " = ?";
String[] args = new String[]{id.serialize()};
args[0] = id.serialize();
Pair<String, String[]> result = SqlUtil.buildTrueUpdateQuery(selection, args, contentValues);
int i = 0;
for (Map.Entry<String, Object> entry : valueSet) {
qualifier.append(entry.getKey()).append(" != ?");
if (i != valueSet.size() - 1) {
qualifier.append(" OR ");
}
args[i + 1] = String.valueOf(entry.getValue());
i++;
}
return database.update(TABLE_NAME, contentValues, ID + " = ? AND (" + qualifier + ")", args) > 0;
return database.update(TABLE_NAME, contentValues, result.first(), result.second()) > 0;
}
private @NonNull Optional<RecipientId> getByColumn(@NonNull String column, String value) {

44
src/org/thoughtcrime/securesms/util/SqlUtil.java
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@ -1,11 +1,20 @@
package org.thoughtcrime.securesms.util;
import android.content.ContentValues;
import android.database.Cursor;
import androidx.annotation.NonNull;
import net.sqlcipher.database.SQLiteDatabase;
import org.whispersystems.libsignal.util.Pair;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Set;
public final class SqlUtil {
private SqlUtil() {}
@ -31,4 +40,39 @@ public final class SqlUtil {
return false;
}
/**
* Returns an updated query and args pairing that will only update rows that would *actually*
* change. In other words, if {@link SQLiteDatabase#update(String, ContentValues, String, String[])}
* returns > 0, then you know something *actually* changed.
*/
public static @NonNull Pair<String, String[]> buildTrueUpdateQuery(@NonNull String selection,
@NonNull String[] args,
@NonNull ContentValues contentValues)
{
StringBuilder qualifier = new StringBuilder();
Set<Map.Entry<String, Object>> valueSet = contentValues.valueSet();
List<String> fullArgs = new ArrayList<>(args.length + valueSet.size());
fullArgs.addAll(Arrays.asList(args));
int i = 0;
for (Map.Entry<String, Object> entry : valueSet) {
if (entry.getValue() != null) {
qualifier.append(entry.getKey()).append(" != ? OR ").append(entry.getKey()).append(" IS NULL");
fullArgs.add(String.valueOf(entry.getValue()));
} else {
qualifier.append(entry.getKey()).append(" NOT NULL");
}
if (i != valueSet.size() - 1) {
qualifier.append(" OR ");
}
i++;
}
return new Pair<>("(" + selection + ") AND (" + qualifier + ")", fullArgs.toArray(new String[0]));
}
}

95
test/unitTest/java/org/thoughtcrime/securesms/database/SqliteUtilTest.java Normal file
View file

@ -0,0 +1,95 @@
package org.thoughtcrime.securesms.database;
import android.app.Application;
import android.content.ContentValues;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.Config;
import org.thoughtcrime.securesms.util.SqlUtil;
import org.whispersystems.libsignal.util.Pair;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
@RunWith(RobolectricTestRunner.class)
@Config(manifest = Config.NONE, application = Application.class)
public class SqliteUtilTest {
@Test
public void buildTrueUpdateQuery_simple() {
String selection = "_id = ?";
String[] args = new String[]{"1"};
ContentValues values = new ContentValues();
values.put("a", 2);
Pair<String, String[]> result = SqlUtil.buildTrueUpdateQuery(selection, args, values);
assertEquals("(_id = ?) AND (a != ? OR a IS NULL)", result.first());
assertArrayEquals(new String[] { "1", "2" }, result.second());
}
@Test
public void buildTrueUpdateQuery_complexSelection() {
String selection = "_id = ? AND (foo = ? OR bar != ?)";
String[] args = new String[]{"1", "2", "3"};
ContentValues values = new ContentValues();
values.put("a", 4);
Pair<String, String[]> result = SqlUtil.buildTrueUpdateQuery(selection, args, values);
assertEquals("(_id = ? AND (foo = ? OR bar != ?)) AND (a != ? OR a IS NULL)", result.first());
assertArrayEquals(new String[] { "1", "2", "3", "4" }, result.second());
}
@Test
public void buildTrueUpdateQuery_multipleContentValues() {
String selection = "_id = ?";
String[] args = new String[]{"1"};
ContentValues values = new ContentValues();
values.put("a", 2);
values.put("b", 3);
values.put("c", 4);
Pair<String, String[]> result = SqlUtil.buildTrueUpdateQuery(selection, args, values);
assertEquals("(_id = ?) AND (a != ? OR a IS NULL OR b != ? OR b IS NULL OR c != ? OR c IS NULL)", result.first());
assertArrayEquals(new String[] { "1", "2", "3", "4"}, result.second());
}
@Test
public void buildTrueUpdateQuery_nullContentValue() {
String selection = "_id = ?";
String[] args = new String[]{"1"};
ContentValues values = new ContentValues();
values.put("a", (String) null);
Pair<String, String[]> result = SqlUtil.buildTrueUpdateQuery(selection, args, values);
assertEquals("(_id = ?) AND (a NOT NULL)", result.first());
assertArrayEquals(new String[] { "1" }, result.second());
}
@Test
public void buildTrueUpdateQuery_complexContentValue() {
String selection = "_id = ?";
String[] args = new String[]{"1"};
ContentValues values = new ContentValues();
values.put("a", (String) null);
values.put("b", 2);
values.put("c", 3);
values.put("d", (String) null);
values.put("e", (String) null);
Pair<String, String[]> result = SqlUtil.buildTrueUpdateQuery(selection, args, values);
assertEquals("(_id = ?) AND (a NOT NULL OR b != ? OR b IS NULL OR c != ? OR c IS NULL OR d NOT NULL OR e NOT NULL)", result.first());
assertArrayEquals(new String[] { "1", "2", "3" }, result.second());
}
}