mirror of https://github.com/M66B/FairEmail.git
240 lines
9.6 KiB
Java
240 lines
9.6 KiB
Java
package eu.faircode.email;
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/*
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This file is part of FairEmail.
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FairEmail is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FairEmail is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2018-2019 by Marcel Bokhorst (M66B)
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*/
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import android.content.Context;
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import android.content.SharedPreferences;
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import androidx.annotation.NonNull;
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import androidx.preference.PreferenceManager;
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import androidx.work.Data;
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import androidx.work.ExistingPeriodicWorkPolicy;
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import androidx.work.OneTimeWorkRequest;
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import androidx.work.PeriodicWorkRequest;
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import androidx.work.WorkManager;
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import androidx.work.Worker;
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import androidx.work.WorkerParameters;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.List;
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import java.util.concurrent.TimeUnit;
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import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
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public class WorkerCleanup extends Worker {
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private static final int CLEANUP_INTERVAL = 4; // hours
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private static final long KEEP_FILES_DURATION = 3600 * 1000L; // milliseconds
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private static final long CACHE_IMAGE_DURATION = 3 * 24 * 3600 * 1000L; // milliseconds
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private static final long KEEP_CONTACTS_DURATION = 180 * 24 * 3600 * 1000L; // milliseconds
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private static final long KEEP_LOG_DURATION = 24 * 3600 * 1000L; // milliseconds
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public WorkerCleanup(@NonNull Context context, @NonNull WorkerParameters workerParams) {
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super(context, workerParams);
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Log.i("Instance " + getName());
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}
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@NonNull
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@Override
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public Result doWork() {
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Log.i("Running " + getName());
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cleanup(getApplicationContext(), getInputData().getBoolean("manual", false));
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return Result.success();
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}
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static void cleanup(Context context, boolean manual) {
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DB db = DB.getInstance(context);
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try {
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Log.i("Start cleanup manual=" + manual);
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Thread.currentThread().setPriority(THREAD_PRIORITY_BACKGROUND);
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if (manual) {
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// Check message files
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Log.i("Checking message files");
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List<Long> mids = db.message().getMessageWithContent();
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for (Long mid : mids) {
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EntityMessage message = db.message().getMessage(mid);
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if (message != null) {
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File file = message.getFile(context);
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if (!file.exists()) {
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Log.w("Message file missing id=" + mid);
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db.message().setMessageContent(mid, false);
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}
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}
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}
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// Check attachments files
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Log.i("Checking attachments files");
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List<Long> aids = db.attachment().getAttachmentAvailable();
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for (Long aid : aids) {
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EntityAttachment attachment = db.attachment().getAttachment(aid);
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if (attachment != null) {
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File file = attachment.getFile(context);
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if (!file.exists()) {
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Log.w("Attachment file missing id=" + aid);
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db.attachment().setAvailable(aid, false);
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}
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}
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}
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// Restore alarms
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for (EntityMessage message : db.message().getSnoozed())
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EntityMessage.snooze(context, message.id, message.ui_snoozed);
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}
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long now = new Date().getTime();
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List<File> files = new ArrayList<>();
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File[] messages = new File(context.getFilesDir(), "messages").listFiles();
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File[] revision = new File(context.getFilesDir(), "revision").listFiles();
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File[] references = new File(context.getFilesDir(), "references").listFiles();
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if (messages != null)
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files.addAll(Arrays.asList(messages));
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if (revision != null)
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files.addAll(Arrays.asList(revision));
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if (references != null)
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files.addAll(Arrays.asList(references));
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// Cleanup message files
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Log.i("Cleanup message files");
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for (File file : files)
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if (manual || file.lastModified() + KEEP_FILES_DURATION < now) {
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long id = Long.parseLong(file.getName().split("\\.")[0]);
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EntityMessage message = db.message().getMessage(id);
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if (message == null || !message.content) {
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Log.i("Deleting " + file);
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if (!file.delete())
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Log.w("Error deleting " + file);
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}
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}
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// Cleanup message files
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Log.i("Cleanup raw message files");
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File[] raws = new File(context.getFilesDir(), "raw").listFiles();
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if (raws != null)
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for (File file : raws)
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if (manual || file.lastModified() + KEEP_FILES_DURATION < now) {
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long id = Long.parseLong(file.getName().split("\\.")[0]);
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EntityMessage message = db.message().getMessage(id);
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if (message == null || message.raw == null || !message.raw) {
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Log.i("Deleting " + file);
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if (!file.delete())
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Log.w("Error deleting " + file);
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}
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}
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// Cleanup attachment files
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Log.i("Cleanup attachment files");
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File[] attachments = new File(context.getFilesDir(), "attachments").listFiles();
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if (attachments != null)
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for (File file : attachments)
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if (manual || file.lastModified() + KEEP_FILES_DURATION < now) {
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long id = Long.parseLong(file.getName().split("\\.")[0]);
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EntityAttachment attachment = db.attachment().getAttachment(id);
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if (attachment == null || !attachment.available) {
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Log.i("Deleting " + file);
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if (!file.delete())
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Log.w("Error deleting " + file);
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}
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}
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// Cleanup cached images
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Log.i("Cleanup cached image files");
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File[] images = new File(context.getCacheDir(), "images").listFiles();
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if (images != null)
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for (File file : images)
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if (file.isFile())
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if (manual || now - file.lastModified() > CACHE_IMAGE_DURATION) {
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Log.i("Deleting " + file);
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if (!file.delete())
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Log.w("Error deleting " + file);
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}
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Log.i("Cleanup contacts");
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int contacts = db.contact().deleteContacts(now - KEEP_CONTACTS_DURATION);
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Log.i("Deleted contacts=" + contacts);
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Log.i("Cleanup log");
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int logs = db.log().deleteLogs(now - KEEP_LOG_DURATION);
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Log.i("Deleted logs=" + logs);
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} catch (Throwable ex) {
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Log.e(ex);
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} finally {
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Log.i("End cleanup");
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
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prefs.edit().putLong("last_cleanup", new Date().getTime()).apply();
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}
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}
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static void queue(Context context) {
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try {
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Log.i("Queuing " + getName() + " every " + CLEANUP_INTERVAL + " hours");
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PeriodicWorkRequest workRequest =
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new PeriodicWorkRequest.Builder(WorkerCleanup.class, CLEANUP_INTERVAL, TimeUnit.HOURS)
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.setInitialDelay(CLEANUP_INTERVAL, TimeUnit.HOURS)
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.build();
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WorkManager.getInstance(context)
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.enqueueUniquePeriodicWork(getName(), ExistingPeriodicWorkPolicy.KEEP, workRequest);
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Log.i("Queued " + getName());
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} catch (IllegalStateException ex) {
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// https://issuetracker.google.com/issues/138465476
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Log.w(ex);
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}
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}
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static void queueOnce(Context context) {
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try {
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Log.i("Queuing " + getName() + " once");
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Data data = new Data.Builder().putBoolean("manual", true).build();
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OneTimeWorkRequest workRequest = new OneTimeWorkRequest.Builder(WorkerCleanup.class)
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.setInputData(data)
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.build();
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WorkManager.getInstance(context).enqueue(workRequest);
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Log.i("Queued " + getName() + " once");
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} catch (IllegalStateException ex) {
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// https://issuetracker.google.com/issues/138465476
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Log.w(ex);
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}
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}
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static void cancel(Context context) {
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try {
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Log.i("Cancelling " + getName());
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WorkManager.getInstance(context).cancelUniqueWork(getName());
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Log.i("Cancelled " + getName());
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} catch (IllegalStateException ex) {
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Log.w(ex);
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}
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}
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private static String getName() {
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return WorkerCleanup.class.getSimpleName();
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}
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}
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