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/*
* Copyright (C) 2019 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.server.telecom.callfiltering;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.provider.BlockedNumberContract;
import android.provider.CallLog;
import android.telecom.CallerInfo;
import android.telecom.Log;
import android.telecom.TelecomManager;
import com.android.server.telecom.Call;
import com.android.server.telecom.CallerInfoLookupHelper;
import com.android.server.telecom.LogUtils;
import com.android.server.telecom.LoggedHandlerExecutor;
import com.android.server.telecom.settings.BlockedNumbersUtil;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
public class BlockCheckerFilter extends CallFilter {
private final Call mCall;
private final Context mContext;
private final CallerInfoLookupHelper mCallerInfoLookupHelper;
private final BlockCheckerAdapter mBlockCheckerAdapter;
private final String TAG = "BlockCheckerFilter";
private boolean mContactExists;
private HandlerThread mHandlerThread;
private Handler mHandler;
public static final long CALLER_INFO_QUERY_TIMEOUT = 5000;
public BlockCheckerFilter(Context context, Call call,
CallerInfoLookupHelper callerInfoLookupHelper,
BlockCheckerAdapter blockCheckerAdapter) {
mCall = call;
mContext = context;
mCallerInfoLookupHelper = callerInfoLookupHelper;
mBlockCheckerAdapter = blockCheckerAdapter;
mContactExists = false;
mHandlerThread = new HandlerThread(TAG);
mHandlerThread.start();
mHandler = new Handler(mHandlerThread.getLooper());
}
@Override
public CompletionStage<CallFilteringResult> startFilterLookup(CallFilteringResult result) {
Log.addEvent(mCall, LogUtils.Events.BLOCK_CHECK_INITIATED);
CompletableFuture<CallFilteringResult> resultFuture = new CompletableFuture<>();
Bundle extras = new Bundle();
if (BlockedNumbersUtil.isEnhancedCallBlockingEnabledByPlatform(mContext)) {
int presentation = mCall.getHandlePresentation();
extras.putInt(BlockedNumberContract.EXTRA_CALL_PRESENTATION, presentation);
if (presentation == TelecomManager.PRESENTATION_ALLOWED) {
mCallerInfoLookupHelper.startLookup(mCall.getHandle(),
new CallerInfoLookupHelper.OnQueryCompleteListener() {
@Override
public void onCallerInfoQueryComplete(Uri handle, CallerInfo info) {
if (info != null && info.contactExists) {
mContactExists = true;
}
getBlockStatus(resultFuture);
}
@Override
public void onContactPhotoQueryComplete(Uri handle, CallerInfo info) {
// Ignore
}
});
} else {
getBlockStatus(resultFuture);
}
} else {
getBlockStatus(resultFuture);
}
return resultFuture;
}
private void getBlockStatus(
CompletableFuture<CallFilteringResult> resultFuture) {
// Set extras
Bundle extras = new Bundle();
if (BlockedNumbersUtil.isEnhancedCallBlockingEnabledByPlatform(mContext)) {
int presentation = mCall.getHandlePresentation();
extras.putInt(BlockedNumberContract.EXTRA_CALL_PRESENTATION, presentation);
if (presentation == TelecomManager.PRESENTATION_ALLOWED) {
extras.putBoolean(BlockedNumberContract.EXTRA_CONTACT_EXIST, mContactExists);
}
}
// Set number
final String number = mCall.getHandle() == null ? null :
mCall.getHandle().getSchemeSpecificPart();
CompletableFuture.supplyAsync(
() -> mBlockCheckerAdapter.getBlockStatus(mContext, number, extras),
new LoggedHandlerExecutor(mHandler, "BCF.gBS", null))
.thenApplyAsync((x) -> completeResult(resultFuture, x),
new LoggedHandlerExecutor(mHandler, "BCF.gBS", null));
}
private int completeResult(CompletableFuture<CallFilteringResult> resultFuture,
int blockStatus) {
CallFilteringResult result;
if (blockStatus != BlockedNumberContract.STATUS_NOT_BLOCKED) {
result = new CallFilteringResult.Builder()
.setShouldAllowCall(false)
.setShouldReject(true)
.setShouldAddToCallLog(true)
.setShouldShowNotification(false)
.setShouldSilence(true)
.setCallBlockReason(getBlockReason(blockStatus))
.setCallScreeningAppName(null)
.setCallScreeningComponentName(null)
.setContactExists(mContactExists)
.build();
} else {
result = new CallFilteringResult.Builder()
.setShouldAllowCall(true)
.setShouldReject(false)
.setShouldSilence(false)
.setShouldAddToCallLog(true)
.setShouldShowNotification(true)
.setContactExists(mContactExists)
.build();
}
Log.addEvent(mCall, LogUtils.Events.BLOCK_CHECK_FINISHED,
BlockedNumberContract.SystemContract.blockStatusToString(blockStatus) + " "
+ result);
resultFuture.complete(result);
mHandlerThread.quitSafely();
return blockStatus;
}
private int getBlockReason(int blockStatus) {
switch (blockStatus) {
case BlockedNumberContract.STATUS_BLOCKED_IN_LIST:
return CallLog.Calls.BLOCK_REASON_BLOCKED_NUMBER;
case BlockedNumberContract.STATUS_BLOCKED_UNKNOWN_NUMBER:
case BlockedNumberContract.STATUS_BLOCKED_UNAVAILABLE:
return CallLog.Calls.BLOCK_REASON_UNKNOWN_NUMBER;
case BlockedNumberContract.STATUS_BLOCKED_RESTRICTED:
return CallLog.Calls.BLOCK_REASON_RESTRICTED_NUMBER;
case BlockedNumberContract.STATUS_BLOCKED_PAYPHONE:
return CallLog.Calls.BLOCK_REASON_PAY_PHONE;
case BlockedNumberContract.STATUS_BLOCKED_NOT_IN_CONTACTS:
return CallLog.Calls.BLOCK_REASON_NOT_IN_CONTACTS;
default:
Log.w(this,
"There's no call log block reason can be converted");
return CallLog.Calls.BLOCK_REASON_BLOCKED_NUMBER;
}
}
}
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