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/*
* Copyright (C) 2017 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.calllog.datasources.systemcalllog;
import android.Manifest.permission;
import android.annotation.TargetApi;
import android.content.ContentValues;
import android.content.Context;
import android.database.ContentObserver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.provider.CallLog;
import android.provider.CallLog.Calls;
import android.support.annotation.MainThread;
import android.support.annotation.Nullable;
import android.support.annotation.VisibleForTesting;
import android.support.annotation.WorkerThread;
import android.text.TextUtils;
import android.util.ArraySet;
import com.android.dialer.DialerPhoneNumber;
import com.android.dialer.calllog.database.contract.AnnotatedCallLogContract.AnnotatedCallLog;
import com.android.dialer.calllog.database.contract.AnnotatedCallLogContract.CoalescedAnnotatedCallLog;
import com.android.dialer.calllog.datasources.CallLogDataSource;
import com.android.dialer.calllog.datasources.CallLogMutations;
import com.android.dialer.calllog.datasources.util.RowCombiner;
import com.android.dialer.common.Assert;
import com.android.dialer.common.LogUtil;
import com.android.dialer.common.concurrent.ThreadUtil;
import com.android.dialer.phonenumberproto.DialerPhoneNumberUtil;
import com.android.dialer.util.PermissionsUtil;
import com.google.i18n.phonenumbers.PhoneNumberUtil;
import com.google.protobuf.InvalidProtocolBufferException;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import javax.inject.Inject;
/**
* Responsible for defining the rows in the annotated call log and maintaining the columns in it
* which are derived from the system call log.
*/
@SuppressWarnings("MissingPermission")
public class SystemCallLogDataSource implements CallLogDataSource {
@VisibleForTesting
static final String PREF_LAST_TIMESTAMP_PROCESSED = "systemCallLogLastTimestampProcessed";
@Nullable private Long lastTimestampProcessed;
@Inject
public SystemCallLogDataSource() {}
@MainThread
@Override
public void registerContentObservers(
Context appContext, ContentObserverCallbacks contentObserverCallbacks) {
Assert.isMainThread();
LogUtil.enterBlock("SystemCallLogDataSource.registerContentObservers");
if (!PermissionsUtil.hasCallLogReadPermissions(appContext)) {
LogUtil.i("SystemCallLogDataSource.registerContentObservers", "no call log permissions");
return;
}
appContext
.getContentResolver()
.registerContentObserver(
CallLog.Calls.CONTENT_URI,
true,
new CallLogObserver(
ThreadUtil.getUiThreadHandler(), appContext, contentObserverCallbacks));
}
@WorkerThread
@Override
public boolean isDirty(Context appContext) {
Assert.isWorkerThread();
/*
* The system call log has a last updated timestamp, but deletes are physical (the "deleted"
* column is unused). This means that we can't detect deletes without scanning the entire table,
* which would be too slow. So, we just rely on content observers to trigger rebuilds when any
* change is made to the system call log.
*/
return false;
}
@WorkerThread
@Override
public void fill(Context appContext, CallLogMutations mutations) {
Assert.isWorkerThread();
lastTimestampProcessed = null;
if (!PermissionsUtil.hasPermission(appContext, permission.READ_CALL_LOG)) {
LogUtil.i("SystemCallLogDataSource.fill", "no call log permissions");
return;
}
// This data source should always run first so the mutations should always be empty.
Assert.checkArgument(mutations.isEmpty());
Set<Long> annotatedCallLogIds = getAnnotatedCallLogIds(appContext);
LogUtil.i(
"SystemCallLogDataSource.fill",
"found %d existing annotated call log ids",
annotatedCallLogIds.size());
handleInsertsAndUpdates(appContext, mutations, annotatedCallLogIds);
handleDeletes(appContext, annotatedCallLogIds, mutations);
}
@WorkerThread
@Override
public void onSuccessfulFill(Context appContext) {
// If a fill operation was a no-op, lastTimestampProcessed could still be null.
if (lastTimestampProcessed != null) {
PreferenceManager.getDefaultSharedPreferences(appContext)
.edit()
.putLong(PREF_LAST_TIMESTAMP_PROCESSED, lastTimestampProcessed)
.apply();
}
}
@Override
public ContentValues coalesce(List<ContentValues> individualRowsSortedByTimestampDesc) {
// TODO(zachh): Complete implementation.
ContentValues coalescedValues =
new RowCombiner(individualRowsSortedByTimestampDesc)
.useMostRecentLong(AnnotatedCallLog.TIMESTAMP)
.combine();
// All phone numbers in the provided group should be equivalent (but could be formatted
// differently). Arbitrarily show the raw phone number of the most recent call.
DialerPhoneNumber mostRecentPhoneNumber =
getMostRecentPhoneNumber(individualRowsSortedByTimestampDesc);
coalescedValues.put(
CoalescedAnnotatedCallLog.FORMATTED_NUMBER,
mostRecentPhoneNumber.getRawInput().getNumber());
return coalescedValues;
}
private static DialerPhoneNumber getMostRecentPhoneNumber(
List<ContentValues> individualRowsSortedByTimestampDesc) {
DialerPhoneNumber dialerPhoneNumber;
byte[] protoBytes =
individualRowsSortedByTimestampDesc.get(0).getAsByteArray(AnnotatedCallLog.NUMBER);
try {
dialerPhoneNumber = DialerPhoneNumber.parseFrom(protoBytes);
} catch (InvalidProtocolBufferException e) {
throw Assert.createAssertionFailException("couldn't parse DialerPhoneNumber", e);
}
return dialerPhoneNumber;
}
@TargetApi(Build.VERSION_CODES.M) // Uses try-with-resources
private void handleInsertsAndUpdates(
Context appContext, CallLogMutations mutations, Set<Long> existingAnnotatedCallLogIds) {
long previousTimestampProcessed =
PreferenceManager.getDefaultSharedPreferences(appContext)
.getLong(PREF_LAST_TIMESTAMP_PROCESSED, 0L);
DialerPhoneNumberUtil dialerPhoneNumberUtil =
new DialerPhoneNumberUtil(PhoneNumberUtil.getInstance());
// TODO(zachh): Really should be getting last 1000 by timestamp, not by last modified.
try (Cursor cursor =
appContext
.getContentResolver()
.query(
Calls.CONTENT_URI, // Excludes voicemail
new String[] {
Calls._ID, Calls.DATE, Calls.LAST_MODIFIED, Calls.NUMBER, Calls.COUNTRY_ISO
},
Calls.LAST_MODIFIED + " > ?",
new String[] {String.valueOf(previousTimestampProcessed)},
Calls.LAST_MODIFIED + " DESC LIMIT 1000")) {
if (cursor == null) {
LogUtil.e("SystemCallLogDataSource.handleInsertsAndUpdates", "null cursor");
return;
}
LogUtil.i(
"SystemCallLogDataSource.handleInsertsAndUpdates",
"found %d entries to insert/update",
cursor.getCount());
if (cursor.moveToFirst()) {
int idColumn = cursor.getColumnIndexOrThrow(Calls._ID);
int dateColumn = cursor.getColumnIndexOrThrow(Calls.DATE);
int lastModifiedColumn = cursor.getColumnIndexOrThrow(Calls.LAST_MODIFIED);
int numberColumn = cursor.getColumnIndexOrThrow(Calls.NUMBER);
int countryIsoColumn = cursor.getColumnIndexOrThrow(Calls.COUNTRY_ISO);
// The cursor orders by LAST_MODIFIED DESC, so the first result is the most recent timestamp
// processed.
lastTimestampProcessed = cursor.getLong(lastModifiedColumn);
do {
long id = cursor.getLong(idColumn);
long date = cursor.getLong(dateColumn);
String numberAsStr = cursor.getString(numberColumn);
String countryIso = cursor.getString(countryIsoColumn);
byte[] numberAsProtoBytes =
dialerPhoneNumberUtil.parse(numberAsStr, countryIso).toByteArray();
ContentValues contentValues = new ContentValues();
contentValues.put(AnnotatedCallLog.TIMESTAMP, date);
contentValues.put(AnnotatedCallLog.NUMBER, numberAsProtoBytes);
if (existingAnnotatedCallLogIds.contains(id)) {
mutations.update(id, contentValues);
} else {
mutations.insert(id, contentValues);
}
} while (cursor.moveToNext());
} // else no new results, do nothing.
}
}
private static void handleDeletes(
Context appContext, Set<Long> existingAnnotatedCallLogIds, CallLogMutations mutations) {
Set<Long> systemCallLogIds =
getIdsFromSystemCallLogThatMatch(appContext, existingAnnotatedCallLogIds);
LogUtil.i(
"SystemCallLogDataSource.handleDeletes",
"found %d matching entries in system call log",
systemCallLogIds.size());
Set<Long> idsInAnnotatedCallLogNoLongerInSystemCallLog = new ArraySet<>();
idsInAnnotatedCallLogNoLongerInSystemCallLog.addAll(existingAnnotatedCallLogIds);
idsInAnnotatedCallLogNoLongerInSystemCallLog.removeAll(systemCallLogIds);
LogUtil.i(
"SystemCallLogDataSource.handleDeletes",
"found %d call log entries to remove",
idsInAnnotatedCallLogNoLongerInSystemCallLog.size());
for (long id : idsInAnnotatedCallLogNoLongerInSystemCallLog) {
mutations.delete(id);
}
}
@TargetApi(Build.VERSION_CODES.M) // Uses try-with-resources
private static Set<Long> getAnnotatedCallLogIds(Context appContext) {
ArraySet<Long> ids = new ArraySet<>();
try (Cursor cursor =
appContext
.getContentResolver()
.query(
AnnotatedCallLog.CONTENT_URI,
new String[] {AnnotatedCallLog._ID},
null,
null,
null)) {
if (cursor == null) {
LogUtil.e("SystemCallLogDataSource.getAnnotatedCallLogIds", "null cursor");
return ids;
}
if (cursor.moveToFirst()) {
int idColumn = cursor.getColumnIndexOrThrow(AnnotatedCallLog._ID);
do {
ids.add(cursor.getLong(idColumn));
} while (cursor.moveToNext());
}
}
return ids;
}
@TargetApi(Build.VERSION_CODES.M) // Uses try-with-resources
private static Set<Long> getIdsFromSystemCallLogThatMatch(
Context appContext, Set<Long> matchingIds) {
ArraySet<Long> ids = new ArraySet<>();
String[] questionMarks = new String[matchingIds.size()];
Arrays.fill(questionMarks, "?");
String whereClause = (Calls._ID + " in (") + TextUtils.join(",", questionMarks) + ")";
String[] whereArgs = new String[matchingIds.size()];
int i = 0;
for (long id : matchingIds) {
whereArgs[i++] = String.valueOf(id);
}
try (Cursor cursor =
appContext
.getContentResolver()
.query(Calls.CONTENT_URI, new String[] {Calls._ID}, whereClause, whereArgs, null)) {
if (cursor == null) {
LogUtil.e("SystemCallLogDataSource.getIdsFromSystemCallLog", "null cursor");
return ids;
}
if (cursor.moveToFirst()) {
int idColumn = cursor.getColumnIndexOrThrow(Calls._ID);
do {
ids.add(cursor.getLong(idColumn));
} while (cursor.moveToNext());
}
return ids;
}
}
private static class CallLogObserver extends ContentObserver {
private final Context appContext;
private final ContentObserverCallbacks contentObserverCallbacks;
CallLogObserver(
Handler handler, Context appContext, ContentObserverCallbacks contentObserverCallbacks) {
super(handler);
this.appContext = appContext;
this.contentObserverCallbacks = contentObserverCallbacks;
}
@MainThread
@Override
public void onChange(boolean selfChange, Uri uri) {
Assert.isMainThread();
LogUtil.enterBlock("SystemCallLogDataSource.CallLogObserver.onChange");
super.onChange(selfChange, uri);
/*
* The system call log has a last updated timestamp, but deletes are physical (the "deleted"
* column is unused). This means that we can't detect deletes without scanning the entire
* table, which would be too slow. So, we just rely on content observers to trigger rebuilds
* when any change is made to the system call log.
*/
contentObserverCallbacks.markDirtyAndNotify(appContext);
}
}
}
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