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FairEmail/app/src/main/java/eu/faircode/email/ServiceExternal.java

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package eu.faircode.email;
/*
This file is part of FairEmail.
FairEmail is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
FairEmail is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
Copyright 2018-2024 by Marcel Bokhorst (M66B)
*/
import android.app.Notification;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.IBinder;
import android.text.TextUtils;
import androidx.annotation.Nullable;
import androidx.core.app.NotificationCompat;
import androidx.preference.PreferenceManager;
import org.json.JSONException;
import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import javax.mail.Address;
import javax.mail.MessagingException;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
public class ServiceExternal extends ServiceBase {
private static final String ACTION_POLL = BuildConfig.APPLICATION_ID + ".POLL";
private static final String ACTION_ENABLE = BuildConfig.APPLICATION_ID + ".ENABLE";
private static final String ACTION_DISABLE = BuildConfig.APPLICATION_ID + ".DISABLE";
private static final String ACTION_INTERVAL = BuildConfig.APPLICATION_ID + ".INTERVAL";
private static final String ACTION_RULE = BuildConfig.APPLICATION_ID + ".RULE";
private static final String ACTION_TEMPLATE = BuildConfig.APPLICATION_ID + ".TEMPLATE";
private static final String ACTION_DISCONNECT_ME = BuildConfig.APPLICATION_ID + ".DISCONNECT.ME";
private static final String ACTION_ADGUARD = BuildConfig.APPLICATION_ID + ".ADGUARD";
// adb shell am start-foreground-service -a eu.faircode.email.POLL --es account Gmail
// adb shell am start-foreground-service -a eu.faircode.email.ENABLE --es account Gmail
// adb shell am start-foreground-service -a eu.faircode.email.DISABLE --es account Gmail
// adb shell am start-foreground-service -a eu.faircode.email.INTERVAL --ei minutes {0, 15, 30, 60, 120, 240, 480, 1440}
// adb shell am start-foreground-service -a eu.faircode.email.RULE --es account Gmail -es rule Test
// adb shell am start-foreground-service -a eu.faircode.email.TEMPLATE --es template ... --es identity ... --es to ... --es cc ... --es subject ...
// adb shell am start-foreground-service -a eu.faircode.email.DISCONNECT
// adb shell am start-foreground-service -a eu.faircode.email.ADGUARD
@Override
public void onCreate() {
Log.i("Service external create");
super.onCreate();
startForeground(NotificationHelper.NOTIFICATION_EXTERNAL, getNotification());
}
@Override
public void onDestroy() {
Log.i("Service external destroy");
stopForeground(true);
super.onDestroy();
CoalMine.watch(this, this.getClass().getName() + "#onDestroy");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
try {
EntityLog.log(this, "Service external intent=" + intent);
Log.logExtras(intent);
super.onStartCommand(intent, flags, startId);
startForeground(NotificationHelper.NOTIFICATION_EXTERNAL, getNotification());
if (intent == null)
return START_NOT_STICKY;
final String action = intent.getAction();
EntityLog.log(this, action);
final Context context = getApplicationContext();
Helper.getSerialExecutor().submit(new Runnable() {
@Override
public void run() {
try {
switch (action) {
case ACTION_POLL:
poll(context, intent);
break;
case ACTION_ENABLE:
case ACTION_DISABLE:
set(context, intent);
break;
case ACTION_INTERVAL:
interval(context, intent);
break;
case ACTION_RULE:
rule(context, intent);
break;
case ACTION_TEMPLATE:
template(context, intent);
break;
case ACTION_DISCONNECT_ME:
disconnect(context, intent);
break;
case ACTION_ADGUARD:
adguard(context, intent);
break;
default:
throw new IllegalArgumentException(action);
}
} catch (Throwable ex) {
Log.e(ex);
EntityLog.log(context, "External " + Log.formatThrowable(ex));
}
}
});
return START_NOT_STICKY;
} finally {
stopSelf(startId);
}
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
private Notification getNotification() {
NotificationCompat.Builder builder =
new NotificationCompat.Builder(this, "service")
.setForegroundServiceBehavior(Notification.FOREGROUND_SERVICE_DEFERRED)
.setSmallIcon(R.drawable.baseline_compare_arrows_white_24)
.setContentTitle(getString(R.string.tile_synchronize))
.setAutoCancel(false)
.setShowWhen(false)
.setDefaults(0) // disable sound on pre Android 8
.setPriority(NotificationCompat.PRIORITY_MIN)
.setCategory(NotificationCompat.CATEGORY_SERVICE)
.setVisibility(NotificationCompat.VISIBILITY_SECRET)
.setLocalOnly(true)
.setOngoing(true);
Notification notification = builder.build();
notification.flags |= Notification.FLAG_NO_CLEAR;
return notification;
}
private static void poll(Context context, Intent intent) {
String accountName = intent.getStringExtra("account");
DB db = DB.getInstance(context);
List<EntityAccount> accounts;
if (accountName == null)
accounts = db.account().getSynchronizingAccounts(null);
else {
EntityAccount account = db.account().getAccount(accountName);
if (account == null)
throw new IllegalArgumentException("Account not found name=" + accountName);
accounts = new ArrayList<>();
accounts.add(account);
}
for (EntityAccount account : accounts) {
List<EntityFolder> folders = db.folder().getSynchronizingFolders(account.id);
if (folders.size() > 0)
Collections.sort(folders, folders.get(0).getComparator(context));
for (EntityFolder folder : folders)
EntityOperation.sync(context, folder.id, false);
}
ServiceSynchronize.eval(context, "external poll account=" + accountName);
}
private static void interval(Context context, Intent intent) {
int minutes = intent.getIntExtra("minutes", 0);
int[] values = context.getResources().getIntArray(R.array.pollIntervalValues);
for (int value : values)
if (value >= minutes) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
prefs.edit().putInt("poll_interval", value).apply();
break;
}
}
private static void set(Context context, Intent intent) {
String accountName = intent.getStringExtra("account");
boolean enabled = ACTION_ENABLE.equals(intent.getAction());
DB db = DB.getInstance(context);
if (accountName == null) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
prefs.edit().putBoolean("enabled", enabled).apply();
} else {
EntityAccount account = db.account().getAccount(accountName);
if (account == null)
throw new IllegalArgumentException("Account not found name=" + accountName);
db.account().setAccountOnDemand(account.id, !enabled);
}
ServiceSynchronize.eval(context, "external account=" + accountName + " enabled=" + enabled);
}
private static void rule(Context context, Intent intent) throws IOException, JSONException, MessagingException {
String accountName = intent.getStringExtra("account");
String ruleName = intent.getStringExtra("rule");
DB db = DB.getInstance(context);
EntityAccount account = db.account().getAccount(accountName);
if (account == null)
throw new IllegalArgumentException("Account not found name=" + accountName);
List<EntityRule> rules = db.rule().getRuleByName(account.id, ruleName);
if (rules == null || rules.size() == 0)
throw new IllegalArgumentException("Rule not found name=" + ruleName);
if (rules.size() != 1)
throw new IllegalArgumentException("Rule ambiguous name=" + ruleName);
EntityRule rule = rules.get(0);
List<Long> ids = db.message().getMessageIdsByFolder(rule.folder);
if (ids == null || ids.size() == 0)
return;
// Check header conditions
for (long mid : ids) {
EntityMessage message = db.message().getMessage(mid);
if (message == null || message.ui_hide)
continue;
rule.matches(context, message, null, null);
}
int applied = 0;
for (long mid : ids)
try {
db.beginTransaction();
EntityMessage message = db.message().getMessage(mid);
if (message == null || message.ui_hide)
continue;
EntityLog.log(context, "Executing rules message=" + message.id);
applied = EntityRule.run(context, rules, message, null, null);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
EntityLog.log(context, "Executing rule=" + rule.name + " applied=" + applied);
}
private static void template(Context context, Intent intent) throws AddressException, IOException {
String templateName = intent.getStringExtra("template");
String identityName = intent.getStringExtra("identity");
String toName = intent.getStringExtra("to");
String ccName = intent.getStringExtra("cc");
String subject = intent.getStringExtra("subject");
DB db = DB.getInstance(context);
List<EntityAnswer> answers = db.answer().getAnswerByName(templateName);
List<EntityIdentity> identity = db.identity().getIdentityByDisplayName(identityName);
Address[] to = InternetAddress.parse(toName);
Address[] cc = TextUtils.isEmpty(ccName) ? null : InternetAddress.parse(ccName);
if (answers == null || answers.size() == 0)
throw new IllegalArgumentException("Unknown template: " + templateName);
if (answers.size() != 1)
throw new IllegalArgumentException("Ambiguous template: " + templateName);
if (identity == null || identity.size() == 0)
throw new IllegalArgumentException("Unknown identity: " + identityName);
if (identity.size() != 1)
throw new IllegalArgumentException("Ambiguous identity: " + identityName);
if (to == null || to.length == 0)
throw new IllegalArgumentException("No to recipients: " + toName);
EntityFolder outbox = EntityFolder.getOutbox(context);
Address[] from = new Address[]{
new InternetAddress(identity.get(0).email, identity.get(0).name, StandardCharsets.UTF_8.name())};
if (subject == null) // Allow empty string
subject = answers.get(0).name;
String body = answers.get(0).getHtml(context, to);
EntityMessage msg = new EntityMessage();
msg.account = identity.get(0).account;
msg.folder = outbox.id;
msg.identity = identity.get(0).id;
msg.msgid = EntityMessage.generateMessageId();
msg.thread = msg.msgid;
msg.from = from;
msg.to = to;
msg.cc = cc;
msg.subject = subject;
msg.received = new Date().getTime();
msg.sender = MessageHelper.getSortKey(msg.from);
Uri lookupUri = ContactInfo.getLookupUri(msg.from);
msg.avatar = (lookupUri == null ? null : lookupUri.toString());
msg.id = db.message().insertMessage(msg);
File file = msg.getFile(context);
Helper.writeText(file, body);
String text = HtmlHelper.getFullText(body);
msg.preview = HtmlHelper.getPreview(text);
msg.language = HtmlHelper.getLanguage(context, msg.subject, text);
db.message().setMessageContent(msg.id,
true,
msg.language,
0,
msg.preview,
null);
EntityOperation.queue(context, msg, EntityOperation.SEND);
ServiceSend.start(context);
}
private static void disconnect(Context context, Intent intent) throws IOException, JSONException {
DisconnectBlacklist.download(context);
}
private static void adguard(Context context, Intent intent) throws IOException, JSONException {
Adguard.download(context);
}
}
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