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1 /*
2  * Copyright (C) 2022 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.adservices.service.measurement.reporting;
18 
19 import static com.android.adservices.service.measurement.util.JobLockHolder.Type.AGGREGATE_REPORTING;
20 import static com.android.adservices.service.stats.AdServicesStatsLog.AD_SERVICES_BACKGROUND_JOBS_EXECUTION_REPORTED__EXECUTION_RESULT_CODE__SKIP_FOR_KILL_SWITCH_ON;
21 import static com.android.adservices.spe.AdServicesJobInfo.MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB;
22 
23 import android.app.job.JobInfo;
24 import android.app.job.JobParameters;
25 import android.app.job.JobScheduler;
26 import android.app.job.JobService;
27 import android.content.ComponentName;
28 import android.content.Context;
29 
30 import com.android.adservices.LogUtil;
31 import com.android.adservices.LoggerFactory;
32 import com.android.adservices.concurrency.AdServicesExecutors;
33 import com.android.adservices.data.measurement.DatastoreManager;
34 import com.android.adservices.data.measurement.DatastoreManagerFactory;
35 import com.android.adservices.service.AdServicesConfig;
36 import com.android.adservices.service.Flags;
37 import com.android.adservices.service.FlagsFactory;
38 import com.android.adservices.service.common.compat.ServiceCompatUtils;
39 import com.android.adservices.service.measurement.aggregation.AggregateEncryptionKeyManager;
40 import com.android.adservices.service.measurement.util.JobLockHolder;
41 import com.android.adservices.service.stats.AdServicesLoggerImpl;
42 import com.android.adservices.spe.AdServicesJobServiceLogger;
43 import com.android.internal.annotations.VisibleForTesting;
44 
45 import com.google.android.libraries.mobiledatadownload.internal.AndroidTimeSource;
46 import com.google.common.util.concurrent.ListeningExecutorService;
47 
48 import java.util.concurrent.Future;
49 
50 /**
51  * Main service for scheduling aggregate reporting jobs. The actual job execution logic is part of
52  * {@link AggregateReportingJobHandler}
53  */
54 public final class AggregateFallbackReportingJobService extends JobService {
55     private static final int MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID =
56             MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB.getJobId();
57 
58     private static final ListeningExecutorService sBlockingExecutor =
59             AdServicesExecutors.getBlockingExecutor();
60     private Future mExecutorFuture;
61 
62     @Override
onStartJob(JobParameters params)63     public boolean onStartJob(JobParameters params) {
64         // Always ensure that the first thing this job does is check if it should be running, and
65         // cancel itself if it's not supposed to be.
66         if (ServiceCompatUtils.shouldDisableExtServicesJobOnTPlus(this)) {
67             LogUtil.d(
68                     "Disabling AggregateFallbackReportingJobService job because it's running in"
69                             + " ExtServices on T+");
70             return skipAndCancelBackgroundJob(params, /* skipReason=*/ 0, /* doRecord=*/ false);
71         }
72 
73         AdServicesJobServiceLogger.getInstance()
74                 .recordOnStartJob(MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID);
75 
76         if (FlagsFactory.getFlags().getMeasurementJobAggregateFallbackReportingKillSwitch()) {
77             LoggerFactory.getMeasurementLogger()
78                     .e("AggregateFallbackReportingJobService is disabled");
79             return skipAndCancelBackgroundJob(
80                     params,
81                     AD_SERVICES_BACKGROUND_JOBS_EXECUTION_REPORTED__EXECUTION_RESULT_CODE__SKIP_FOR_KILL_SWITCH_ON,
82                     /* doRecord=*/ true);
83         }
84 
85         LoggerFactory.getMeasurementLogger().d("AggregateFallbackReportingJobService.onStartJob");
86         mExecutorFuture =
87                 sBlockingExecutor.submit(
88                         () -> {
89                             processPendingReports();
90 
91                             AdServicesJobServiceLogger.getInstance()
92                                     .recordJobFinished(
93                                             MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID,
94                                             /* isSuccessful= */ true,
95                                             /* shouldRetry= */ false);
96 
97                             jobFinished(params, /* wantsReschedule= */ false);
98                         });
99         return true;
100     }
101 
102     @VisibleForTesting
processPendingReports()103     void processPendingReports() {
104         JobLockHolder.getInstance(AGGREGATE_REPORTING)
105                 .runWithLock(
106                         "AggregateFallbackReportingJobService",
107                         () -> {
108                             long windowStartTime =
109                                     System.currentTimeMillis()
110                                             - FlagsFactory.getFlags()
111                                                     .getMeasurementMaxAggregateReportUploadRetryWindowMs();
112                             long windowEndTime =
113                                     System.currentTimeMillis()
114                                             - AdServicesConfig
115                                                     .getMeasurementAggregateMainReportingJobPeriodMs();
116                             DatastoreManager datastoreManager =
117                                     DatastoreManagerFactory.getDatastoreManager();
118                             new AggregateReportingJobHandler(
119                                             datastoreManager,
120                                             new AggregateEncryptionKeyManager(
121                                                     datastoreManager, getApplicationContext()),
122                                             FlagsFactory.getFlags(),
123                                             AdServicesLoggerImpl.getInstance(),
124                                             ReportingStatus.ReportType.AGGREGATE,
125                                             ReportingStatus.UploadMethod.FALLBACK,
126                                             getApplicationContext(),
127                                             new AndroidTimeSource())
128                                     .performScheduledPendingReportsInWindow(
129                                             windowStartTime, windowEndTime);
130                         });
131     }
132 
133     @Override
onStopJob(JobParameters params)134     public boolean onStopJob(JobParameters params) {
135         LoggerFactory.getMeasurementLogger().d("AggregateFallbackReportingJobService.onStopJob");
136         boolean shouldRetry = true;
137         if (mExecutorFuture != null) {
138             shouldRetry = mExecutorFuture.cancel(/* mayInterruptIfRunning */ true);
139         }
140         AdServicesJobServiceLogger.getInstance()
141                 .recordOnStopJob(
142                         params, MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID, shouldRetry);
143         return shouldRetry;
144     }
145 
146     /** Schedules {@link AggregateFallbackReportingJobService} */
147     @VisibleForTesting
schedule(JobScheduler jobScheduler, JobInfo jobInfo)148     static void schedule(JobScheduler jobScheduler, JobInfo jobInfo) {
149         jobScheduler.schedule(jobInfo);
150     }
151 
152     // TODO(b/311183933): Remove passed in Context from static method.
153     @SuppressWarnings("AvoidStaticContext")
buildJobInfo(Context context, Flags flags)154     private static JobInfo buildJobInfo(Context context, Flags flags) {
155         return new JobInfo.Builder(
156                         MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID,
157                         new ComponentName(context, AggregateFallbackReportingJobService.class))
158                 .setRequiredNetworkType(
159                         flags.getMeasurementAggregateFallbackReportingJobRequiredNetworkType())
160                 .setRequiresBatteryNotLow(
161                         flags.getMeasurementAggregateFallbackReportingJobRequiredBatteryNotLow())
162                 .setPeriodic(flags.getMeasurementAggregateFallbackReportingJobPeriodMs())
163                 .setPersisted(flags.getMeasurementAggregateFallbackReportingJobPersisted())
164                 .build();
165     }
166 
167     /**
168      * Schedule Aggregate Fallback Reporting Job if it is not already scheduled
169      *
170      * @param context the context
171      * @param forceSchedule flag to indicate whether to force rescheduling the job.
172      */
173     // TODO(b/311183933): Remove passed in Context from static method.
174     @SuppressWarnings("AvoidStaticContext")
scheduleIfNeeded(Context context, boolean forceSchedule)175     public static void scheduleIfNeeded(Context context, boolean forceSchedule) {
176         Flags flags = FlagsFactory.getFlags();
177         if (flags.getMeasurementJobAggregateFallbackReportingKillSwitch()) {
178             LoggerFactory.getMeasurementLogger()
179                     .d("AggregateFallbackReportingJobService is disabled, skip scheduling");
180             return;
181         }
182 
183         final JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
184         if (jobScheduler == null) {
185             LoggerFactory.getMeasurementLogger().e("JobScheduler not found");
186             return;
187         }
188 
189         final JobInfo scheduledJob =
190                 jobScheduler.getPendingJob(MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID);
191         // Schedule if it hasn't been scheduled already or force rescheduling
192         JobInfo jobInfo = buildJobInfo(context, flags);
193         if (forceSchedule || !jobInfo.equals(scheduledJob)) {
194             schedule(jobScheduler, jobInfo);
195             LoggerFactory.getMeasurementLogger()
196                     .d("Scheduled AggregateFallbackReportingJobService");
197         } else {
198             LoggerFactory.getMeasurementLogger()
199                     .d(
200                             "AggregateFallbackReportingJobService already scheduled, skipping"
201                                     + " reschedule");
202         }
203     }
204 
skipAndCancelBackgroundJob( final JobParameters params, int skipReason, boolean doRecord)205     private boolean skipAndCancelBackgroundJob(
206             final JobParameters params, int skipReason, boolean doRecord) {
207         final JobScheduler jobScheduler = this.getSystemService(JobScheduler.class);
208         if (jobScheduler != null) {
209             jobScheduler.cancel(MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID);
210         }
211 
212         if (doRecord) {
213             AdServicesJobServiceLogger.getInstance()
214                     .recordJobSkipped(MEASUREMENT_AGGREGATE_FALLBACK_REPORTING_JOB_ID, skipReason);
215         }
216 
217         // Tell the JobScheduler that the job has completed and does not need to be rescheduled.
218         jobFinished(params, false);
219 
220         // Returning false means that this job has completed its work.
221         return false;
222     }
223 
224     @VisibleForTesting
getFutureForTesting()225     Future getFutureForTesting() {
226         return mExecutorFuture;
227     }
228 }
229