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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.dialer.compat;
import com.google.common.base.Preconditions;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.net.Uri;
import android.preference.PreferenceManager;
import android.support.annotation.Nullable;
import android.telephony.PhoneNumberUtils;
import com.android.contacts.common.compat.CompatUtils;
import com.android.contacts.common.testing.NeededForTesting;
import com.android.dialer.DialerApplication;
import com.android.dialer.database.FilteredNumberContract.FilteredNumber;
import com.android.dialer.database.FilteredNumberContract.FilteredNumberColumns;
import com.android.dialer.database.FilteredNumberContract.FilteredNumberSources;
import com.android.dialer.database.FilteredNumberContract.FilteredNumberTypes;
import java.util.ArrayList;
import java.util.List;
/**
* Compatibility class to encapsulate logic to switch between call blocking using
* {@link com.android.dialer.database.FilteredNumberContract} and using
* {@link android.provider.BlockedNumberContract}. This class should be used rather than explicitly
* referencing columns from either contract class in situations where both blocking solutions may be
* used.
*/
public class FilteredNumberCompat {
protected static final String HAS_MIGRATED_TO_NEW_BLOCKING_KEY = "migratedToNewBlocking";
// Flag to enable feature.
// TODO(maxwelb) remove when ready to enable new filtering.
private static final boolean isNewFilteringEnabled = false;
private static Boolean isEnabledForTest;
/**
* @return The column name for ID in the filtered number database.
*/
public static String getIdColumnName() {
return useNewFiltering() ? BlockedNumbersSdkCompat._ID : FilteredNumberColumns._ID;
}
/**
* @return The column name for type in the filtered number database. Will be {@code null} for
* the framework blocking implementation.
*/
@Nullable
public static String getTypeColumnName() {
return useNewFiltering() ? null : FilteredNumberColumns.TYPE;
}
/**
* @return The column name for source in the filtered number database. Will be {@code null} for
* the framework blocking implementation
*/
@Nullable
public static String getSourceColumnName() {
return useNewFiltering() ? null : FilteredNumberColumns.SOURCE;
}
/**
* @return The column name for the original number in the filtered number database.
*/
public static String getOriginalNumberColumnName() {
return useNewFiltering() ? BlockedNumbersSdkCompat.COLUMN_ORIGINAL_NUMBER
: FilteredNumberColumns.NUMBER;
}
/**
* @return The column name for country iso in the filtered number database. Will be {@code null}
* the framework blocking implementation
*/
@Nullable
public static String getCountryIsoColumnName() {
return useNewFiltering() ? null : FilteredNumberColumns.COUNTRY_ISO;
}
/**
* @return The column name for the e164 formatted number in the filtered number database.
*/
public static String getE164NumberColumnName() {
return useNewFiltering() ? BlockedNumbersSdkCompat.E164_NUMBER
: FilteredNumberColumns.NORMALIZED_NUMBER;
}
/**
* @return {@code true} if the current SDK version supports using new filtering, {@code false}
* otherwise.
*/
public static boolean canUseNewFiltering() {
if (isEnabledForTest != null) {
return CompatUtils.isNCompatible() && isEnabledForTest;
}
return CompatUtils.isNCompatible() && isNewFilteringEnabled;
}
/**
* @return {@code true} if the new filtering should be used, i.e. it's enabled and any necessary
* migration has been performed, {@code false} otherwise.
*/
public static boolean useNewFiltering() {
return canUseNewFiltering() && hasMigratedToNewBlocking();
}
/**
* @return {@code true} if the user has migrated to use
* {@link android.provider.BlockedNumberContract} blocking, {@code false} otherwise.
*/
public static boolean hasMigratedToNewBlocking() {
return PreferenceManager.getDefaultSharedPreferences(DialerApplication.getContext())
.getBoolean(HAS_MIGRATED_TO_NEW_BLOCKING_KEY, false);
}
/**
* Called to inform this class whether the user has fully migrated to use
* {@link android.provider.BlockedNumberContract} blocking or not.
*
* @param hasMigrated {@code true} if the user has migrated, {@code false} otherwise.
*/
@NeededForTesting
public static void setHasMigratedToNewBlocking(boolean hasMigrated) {
PreferenceManager.getDefaultSharedPreferences(DialerApplication.getContext()).edit()
.putBoolean(HAS_MIGRATED_TO_NEW_BLOCKING_KEY, hasMigrated).apply();
}
@NeededForTesting
public static void setIsEnabledForTest(Boolean isEnabled) {
isEnabledForTest = isEnabled;
}
/**
* Gets the content {@link Uri} for number filtering.
*
* @param id The optional id to append with the base content uri.
* @return The Uri for number filtering.
*/
public static Uri getContentUri(@Nullable Integer id) {
if (id == null) {
return getBaseUri();
}
return ContentUris.withAppendedId(getBaseUri(), id);
}
private static Uri getBaseUri() {
return useNewFiltering() ? BlockedNumbersSdkCompat.CONTENT_URI : FilteredNumber.CONTENT_URI;
}
/**
* Removes any null column names from the given projection array. This method is intended to be
* used to strip out any column names that aren't available in every version of number blocking.
* Example:
* {@literal
* getContext().getContentResolver().query(
* someUri,
* // Filtering ensures that no non-existant columns are queried
* FilteredNumberCompat.filter(new String[] {FilteredNumberCompat.getIdColumnName(),
* FilteredNumberCompat.getTypeColumnName()},
* FilteredNumberCompat.getE164NumberColumnName() + " = ?",
* new String[] {e164Number});
* }
*
* @param projection The projection array.
* @return The filtered projection array.
*/
@Nullable
public static String[] filter(@Nullable String[] projection) {
if (projection == null) {
return null;
}
List<String> filtered = new ArrayList<>();
for (String column : projection) {
if (column != null) {
filtered.add(column);
}
}
return filtered.toArray(new String[filtered.size()]);
}
/**
* Creates a new {@link ContentValues} suitable for inserting in the filtered number table.
*
* @param number The unformatted number to insert.
* @param e164Number (optional) The number to insert formatted to E164 standard.
* @param countryIso (optional) The country iso to use to format the number.
* @return The ContentValues to insert.
* @throws NullPointerException If number is null.
*/
public static ContentValues newBlockNumberContentValues(String number,
@Nullable String e164Number, @Nullable String countryIso) {
ContentValues contentValues = new ContentValues();
contentValues.put(getOriginalNumberColumnName(), Preconditions.checkNotNull(number));
if (!useNewFiltering()) {
if (e164Number == null) {
e164Number = PhoneNumberUtils.formatNumberToE164(number, countryIso);
}
contentValues.put(getE164NumberColumnName(), e164Number);
contentValues.put(getCountryIsoColumnName(), countryIso);
contentValues.put(getTypeColumnName(), FilteredNumberTypes.BLOCKED_NUMBER);
contentValues.put(getSourceColumnName(), FilteredNumberSources.USER);
}
return contentValues;
}
}
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