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termux-app/app/src/main/java/com/termux/app/TermuxService.java

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package com.termux.app;
import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.net.Uri;
import android.net.wifi.WifiManager;
import android.os.Binder;
import android.os.Build;
import android.os.Handler;
import android.os.IBinder;
import android.os.PowerManager;
import android.provider.Settings;
import android.widget.ArrayAdapter;
import com.termux.R;
import com.termux.shared.termux.TermuxConstants;
import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_ACTIVITY;
import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_SERVICE;
import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
import com.termux.app.terminal.TermuxSession;
import com.termux.app.terminal.TermuxSessionClient;
import com.termux.app.terminal.TermuxSessionClientBase;
import com.termux.shared.logger.Logger;
import com.termux.shared.notification.NotificationUtils;
import com.termux.shared.packages.PermissionUtils;
import com.termux.shared.shell.ShellUtils;
import com.termux.shared.data.DataUtils;
import com.termux.app.models.ExecutionCommand;
import com.termux.app.models.ExecutionCommand.ExecutionState;
import com.termux.app.terminal.TermuxTask;
import com.termux.terminal.TerminalEmulator;
import com.termux.terminal.TerminalSession;
import com.termux.terminal.TerminalSessionClient;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Nullable;
/**
* A service holding a list of termux sessions, {@link #mTermuxSessions}, showing a foreground notification while
* running so that it is not terminated. The user interacts with the session through {@link TermuxActivity}, but this
* service may outlive the activity when the user or the system disposes of the activity. In that case the user may
* restart {@link TermuxActivity} later to yet again access the sessions.
* <p/>
* In order to keep both terminal sessions and spawned processes (who may outlive the terminal sessions) alive as long
* as wanted by the user this service is a foreground service, {@link Service#startForeground(int, Notification)}.
* <p/>
* Optionally may hold a wake and a wifi lock, in which case that is shown in the notification - see
* {@link #buildNotification()}.
*/
public final class TermuxService extends Service {
private static int EXECUTION_ID = 1000;
/** This service is only bound from inside the same process and never uses IPC. */
class LocalBinder extends Binder {
public final TermuxService service = TermuxService.this;
}
private final IBinder mBinder = new LocalBinder();
private final Handler mHandler = new Handler();
/**
* The foreground termux sessions which this service manages.
* Note that this list is observed by {@link TermuxActivity#mTermuxSessionListViewController},
* so any changes must be made on the UI thread and followed by a call to
* {@link ArrayAdapter#notifyDataSetChanged()} }.
*/
final List<TermuxSession> mTermuxSessions = new ArrayList<>();
/**
* The background termux tasks which this service manages.
*/
final List<TermuxTask> mTermuxTasks = new ArrayList<>();
/** The full implementation of the {@link TerminalSessionClient} interface to be used by {@link TerminalSession}
* that holds activity references for activity related functions.
* Note that the service may often outlive the activity, so need to clear this reference.
*/
TermuxSessionClient mTermuxSessionClient;
/** The basic implementation of the {@link TerminalSessionClient} interface to be used by {@link TerminalSession}
* that does not hold activity references.
*/
final TermuxSessionClientBase mTermuxSessionClientBase = new TermuxSessionClientBase();
/** The wake lock and wifi lock are always acquired and released together. */
private PowerManager.WakeLock mWakeLock;
private WifiManager.WifiLock mWifiLock;
/** If the user has executed the {@link TERMUX_SERVICE#ACTION_STOP_SERVICE} intent. */
boolean mWantsToStop = false;
private static final String LOG_TAG = "TermuxService";
@Override
public void onCreate() {
Logger.logVerbose(LOG_TAG, "onCreate");
runStartForeground();
}
@SuppressLint("Wakelock")
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Logger.logDebug(LOG_TAG, "onStartCommand");
// Run again in case service is already started and onCreate() is not called
runStartForeground();
String action = intent.getAction();
if (action != null) {
switch (action) {
case TERMUX_SERVICE.ACTION_STOP_SERVICE:
Logger.logDebug(LOG_TAG, "ACTION_STOP_SERVICE intent received");
actionStopService();
break;
case TERMUX_SERVICE.ACTION_WAKE_LOCK:
Logger.logDebug(LOG_TAG, "ACTION_WAKE_LOCK intent received");
actionAcquireWakeLock();
break;
case TERMUX_SERVICE.ACTION_WAKE_UNLOCK:
Logger.logDebug(LOG_TAG, "ACTION_WAKE_UNLOCK intent received");
actionReleaseWakeLock(true);
break;
case TERMUX_SERVICE.ACTION_SERVICE_EXECUTE:
Logger.logDebug(LOG_TAG, "ACTION_SERVICE_EXECUTE intent received");
actionServiceExecute(intent);
break;
default:
Logger.logError(LOG_TAG, "Invalid action: \"" + action + "\"");
break;
}
}
// If this service really do get killed, there is no point restarting it automatically - let the user do on next
// start of {@link Term):
return Service.START_NOT_STICKY;
}
@Override
public void onDestroy() {
Logger.logVerbose(LOG_TAG, "onDestroy");
ShellUtils.clearTermuxTMPDIR(this);
actionReleaseWakeLock(false);
finishAllTermuxSessions();
runStopForeground();
}
@Override
public IBinder onBind(Intent intent) {
Logger.logVerbose(LOG_TAG, "onBind");
return mBinder;
}
@Override
public boolean onUnbind(Intent intent) {
Logger.logVerbose(LOG_TAG, "onUnbind");
// Since we cannot rely on {@link TermuxActivity.onDestroy()} to always complete,
// we unset clients here as well if it failed, so that we do not leave service and session
// clients with references to the activity.
if(mTermuxSessionClient != null)
unsetTermuxSessionClient();
return false;
}
/** Make service run in foreground mode. */
private void runStartForeground() {
setupNotificationChannel();
startForeground(TermuxConstants.TERMUX_APP_NOTIFICATION_ID, buildNotification());
}
/** Make service leave foreground mode. */
private void runStopForeground() {
stopForeground(true);
}
/** Request to stop service. */
private void requestStopService() {
Logger.logDebug(LOG_TAG, "Requesting to stop service");
runStopForeground();
stopSelf();
}
/** Process action to stop service. */
private void actionStopService() {
mWantsToStop = true;
finishAllTermuxSessions();
requestStopService();
}
/** Finish all termux sessions by sending SIGKILL to their shells. */
private synchronized void finishAllTermuxSessions() {
ExecutionCommand executionCommand;
// TODO: Should SIGKILL also be send to background processes maintained by mTermuxTasks?
for (int i = 0; i < mTermuxSessions.size(); i++) {
TermuxSession termuxSession = mTermuxSessions.get(i);
executionCommand = termuxSession.getExecutionCommand();
// If the execution command was started for a plugin and is currently executing, then notify the callers
if(executionCommand.isPluginExecutionCommand && executionCommand.isExecuting()) {
if (executionCommand.setStateFailed(ExecutionCommand.RESULT_CODE_FAILED, this.getString(R.string.error_sending_sigkill_to_process), null)) {
TermuxSession.processTermuxSessionResult(this, termuxSession, null);
}
}
termuxSession.getTerminalSession().finishIfRunning();
}
}
/** Process action to acquire Power and Wi-Fi WakeLocks. */
@SuppressLint({"WakelockTimeout", "BatteryLife"})
private void actionAcquireWakeLock() {
if (mWakeLock != null) {
Logger.logDebug(LOG_TAG, "Ignoring acquiring WakeLocks since they are already held");
return;
}
Logger.logDebug(LOG_TAG, "Acquiring WakeLocks");
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TermuxConstants.TERMUX_APP_NAME.toLowerCase() + ":service-wakelock");
mWakeLock.acquire();
// http://tools.android.com/tech-docs/lint-in-studio-2-3#TOC-WifiManager-Leak
WifiManager wm = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
mWifiLock = wm.createWifiLock(WifiManager.WIFI_MODE_FULL_HIGH_PERF, TermuxConstants.TERMUX_APP_NAME.toLowerCase());
mWifiLock.acquire();
String packageName = getPackageName();
if (!pm.isIgnoringBatteryOptimizations(packageName)) {
Intent whitelist = new Intent();
whitelist.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
whitelist.setData(Uri.parse("package:" + packageName));
whitelist.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
try {
startActivity(whitelist);
} catch (ActivityNotFoundException e) {
Logger.logStackTraceWithMessage(LOG_TAG, "Failed to call ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS", e);
}
}
updateNotification();
Logger.logDebug(LOG_TAG, "WakeLocks acquired successfully");
}
/** Process action to release Power and Wi-Fi WakeLocks. */
private void actionReleaseWakeLock(boolean updateNotification) {
if (mWakeLock == null && mWifiLock == null){
Logger.logDebug(LOG_TAG, "Ignoring releasing WakeLocks since none are already held");
return;
}
Logger.logDebug(LOG_TAG, "Releasing WakeLocks");
if (mWakeLock != null) {
mWakeLock.release();
mWakeLock = null;
}
if (mWifiLock != null) {
mWifiLock.release();
mWifiLock = null;
}
if(updateNotification)
updateNotification();
Logger.logDebug(LOG_TAG, "WakeLocks released successfully");
}
/** Process {@link TERMUX_SERVICE#ACTION_SERVICE_EXECUTE} intent to execute a shell command in
* a foreground termux session or in background. */
private void actionServiceExecute(Intent intent) {
if (intent == null){
Logger.logError(LOG_TAG, "Ignoring null intent to actionServiceExecute");
return;
}
ExecutionCommand executionCommand = new ExecutionCommand(getNextExecutionId());
executionCommand.executableUri = intent.getData();
if(executionCommand.executableUri != null) {
executionCommand.executable = executionCommand.executableUri.getPath();
executionCommand.arguments = intent.getStringArrayExtra(TERMUX_SERVICE.EXTRA_ARGUMENTS);
}
executionCommand.workingDirectory = intent.getStringExtra(TERMUX_SERVICE.EXTRA_WORKDIR);
executionCommand.inBackground = intent.getBooleanExtra(TERMUX_SERVICE.EXTRA_BACKGROUND, false);
executionCommand.isFailsafe = intent.getBooleanExtra(TERMUX_ACTIVITY.ACTION_FAILSAFE_SESSION, false);
executionCommand.sessionAction = intent.getStringExtra(TERMUX_SERVICE.EXTRA_SESSION_ACTION);
executionCommand.commandLabel = DataUtils.getDefaultIfNull(intent.getStringExtra(TERMUX_SERVICE.EXTRA_COMMAND_LABEL), "Execution Intent Command");
executionCommand.commandDescription = intent.getStringExtra(TERMUX_SERVICE.EXTRA_COMMAND_DESCRIPTION);
executionCommand.commandHelp = intent.getStringExtra(TERMUX_SERVICE.EXTRA_COMMAND_HELP);
executionCommand.pluginAPIHelp = intent.getStringExtra(TERMUX_SERVICE.EXTRA_PLUGIN_API_HELP);
executionCommand.isPluginExecutionCommand = true;
executionCommand.pluginPendingIntent = intent.getParcelableExtra(TERMUX_SERVICE.EXTRA_PENDING_INTENT);
if (executionCommand.inBackground) {
executeTermuxTaskCommand(executionCommand);
} else {
executeTermuxSessionCommand(executionCommand);
}
}
/** Execute a shell command in background {@link TermuxTask}. */
private void executeTermuxTaskCommand(ExecutionCommand executionCommand) {
if (executionCommand == null) return;
Logger.logDebug(LOG_TAG, "Starting background termux task command");
TermuxTask newTermuxTask = createTermuxTask(executionCommand);
}
/** Create a {@link TermuxTask}. */
@Nullable
public TermuxTask createTermuxTask(String executablePath, String[] arguments, String workingDirectory) {
return createTermuxTask(new ExecutionCommand(getNextExecutionId(), executablePath, arguments, workingDirectory, true, false));
}
/** Create a {@link TermuxTask}. */
@Nullable
public synchronized TermuxTask createTermuxTask(ExecutionCommand executionCommand) {
if (executionCommand == null) return null;
Logger.logDebug(LOG_TAG, "Creating termux task");
if (!executionCommand.inBackground) {
Logger.logDebug(LOG_TAG, "Ignoring a foreground execution command passed to createTermuxTask()");
return null;
}
if(Logger.getLogLevel() >= Logger.LOG_LEVEL_VERBOSE)
Logger.logVerbose(LOG_TAG, executionCommand.toString());
TermuxTask newTermuxTask = TermuxTask.create(this, executionCommand);
if (newTermuxTask == null) {
Logger.logError(LOG_TAG, "Failed to execute new termux task command for:\n" + executionCommand.getCommandIdAndLabelLogString());
return null;
}
mTermuxTasks.add(newTermuxTask);
updateNotification();
return newTermuxTask;
}
/** Callback received when a {@link TermuxTask} finishes. */
public synchronized void onTermuxTaskExited(final TermuxTask task) {
mHandler.post(() -> {
mTermuxTasks.remove(task);
updateNotification();
});
}
/** Execute a shell command in a foreground {@link TermuxSession}. */
private void executeTermuxSessionCommand(ExecutionCommand executionCommand) {
if (executionCommand == null) return;
Logger.logDebug(LOG_TAG, "Starting foreground termux session command");
String sessionName = null;
// Transform executable path to session name, e.g. "/bin/do-something.sh" => "do something.sh".
if (executionCommand.executable != null) {
sessionName = ShellUtils.getExecutableBasename(executionCommand.executable).replace('-', ' ');
}
TermuxSession newTermuxSession = createTermuxSession(executionCommand, sessionName);
if (newTermuxSession == null) return;
handleSessionAction(DataUtils.getIntFromString(executionCommand.sessionAction,
TERMUX_SERVICE.VALUE_EXTRA_SESSION_ACTION_SWITCH_TO_NEW_SESSION_AND_OPEN_ACTIVITY),
newTermuxSession.getTerminalSession());
}
/**
* Create a {@link TermuxSession}.
* Currently called by {@link TermuxSessionClient#addNewSession(boolean, String)} to add a new termux session.
*/
@Nullable
public TermuxSession createTermuxSession(String executablePath, String[] arguments, String workingDirectory, boolean isFailSafe, String sessionName) {
return createTermuxSession(new ExecutionCommand(getNextExecutionId(), executablePath, arguments, workingDirectory, false, isFailSafe), sessionName);
}
/** Create a {@link TermuxSession}. */
@Nullable
public synchronized TermuxSession createTermuxSession(ExecutionCommand executionCommand, String sessionName) {
if (executionCommand == null) return null;
Logger.logDebug(LOG_TAG, "Creating termux session");
if (executionCommand.inBackground) {
Logger.logDebug(LOG_TAG, "Ignoring a background execution command passed to createTermuxSession()");
return null;
}
if(Logger.getLogLevel() >= Logger.LOG_LEVEL_VERBOSE)
Logger.logVerbose(LOG_TAG, executionCommand.toString());
TermuxSession newTermuxSession = TermuxSession.create(this, executionCommand, getTermuxSessionClient(), sessionName);
if (newTermuxSession == null) {
Logger.logError(LOG_TAG, "Failed to execute new termux session command for:\n" + executionCommand.getCommandIdAndLabelLogString());
return null;
}
mTermuxSessions.add(newTermuxSession);
// Notify {@link TermuxSessionsListViewController} that sessions list has been updated if
// activity in is foreground
if(mTermuxSessionClient != null)
mTermuxSessionClient.termuxSessionListNotifyUpdated();
updateNotification();
TermuxActivity.updateTermuxActivityStyling(this);
return newTermuxSession;
}
/** Remove a termux session. */
public synchronized int removeTermuxSession(TerminalSession sessionToRemove) {
int index = getIndexOfSession(sessionToRemove);
if(index >= 0) {
TermuxSession termuxSession = mTermuxSessions.get(index);
if (termuxSession.getExecutionCommand().setState(ExecutionState.EXECUTED)) {
// If the execution command was started for a plugin and is currently executing, then process the result
if(termuxSession.getExecutionCommand().isPluginExecutionCommand)
TermuxSession.processTermuxSessionResult(this, termuxSession, null);
else
termuxSession.getExecutionCommand().setState(ExecutionState.SUCCESS);
}
mTermuxSessions.remove(termuxSession);
// Notify {@link TermuxSessionsListViewController} that sessions list has been updated if
// activity in is foreground
if(mTermuxSessionClient != null)
mTermuxSessionClient.termuxSessionListNotifyUpdated();
}
if (mTermuxSessions.isEmpty() && mWakeLock == null) {
// Finish if there are no sessions left and the wake lock is not held, otherwise keep the service alive if
// holding wake lock since there may be daemon processes (e.g. sshd) running.
requestStopService();
} else {
updateNotification();
}
return index;
}
/** Process session action for new session. */
private void handleSessionAction(int sessionAction, TerminalSession newTerminalSession) {
Logger.logDebug(LOG_TAG, "Processing sessionAction \"" + sessionAction + "\" for session \"" + newTerminalSession.mSessionName + "\"");
switch (sessionAction) {
case TERMUX_SERVICE.VALUE_EXTRA_SESSION_ACTION_SWITCH_TO_NEW_SESSION_AND_OPEN_ACTIVITY:
setCurrentStoredTerminalSession(newTerminalSession);
if(mTermuxSessionClient != null)
mTermuxSessionClient.setCurrentSession(newTerminalSession);
startTermuxActivity();
break;
case TERMUX_SERVICE.VALUE_EXTRA_SESSION_ACTION_KEEP_CURRENT_SESSION_AND_OPEN_ACTIVITY:
if(getTermuxSessionsSize() == 1)
setCurrentStoredTerminalSession(newTerminalSession);
startTermuxActivity();
break;
case TERMUX_SERVICE.VALUE_EXTRA_SESSION_ACTION_SWITCH_TO_NEW_SESSION_AND_DONT_OPEN_ACTIVITY:
setCurrentStoredTerminalSession(newTerminalSession);
if(mTermuxSessionClient != null)
mTermuxSessionClient.setCurrentSession(newTerminalSession);
break;
case TERMUX_SERVICE.VALUE_EXTRA_SESSION_ACTION_KEEP_CURRENT_SESSION_AND_DONT_OPEN_ACTIVITY:
if(getTermuxSessionsSize() == 1)
setCurrentStoredTerminalSession(newTerminalSession);
break;
default:
Logger.logError(LOG_TAG, "Invalid sessionAction: \"" + sessionAction + "\". Force using default sessionAction.");
handleSessionAction(TERMUX_SERVICE.VALUE_EXTRA_SESSION_ACTION_SWITCH_TO_NEW_SESSION_AND_OPEN_ACTIVITY, newTerminalSession);
break;
}
}
/** Launch the {@link }TermuxActivity} to bring it to foreground. */
private void startTermuxActivity() {
// For android >= 10, apps require Display over other apps permission to start foreground activities
// from background (services). If it is not granted, then termux sessions that are started will
// show in Termux notification but will not run until user manually clicks the notification.
if(PermissionUtils.validateDisplayOverOtherAppsPermissionForPostAndroid10(this)) {
TermuxActivity.startTermuxActivity(this);
}
}
/** If {@link TermuxActivity} has not bound to the {@link TermuxService} yet or is destroyed, then
* interface functions requiring the activity should not be available to the terminal sessions,
* so we just return the {@link #mTermuxSessionClientBase}. Once {@link TermuxActivity} bind
* callback is received, it should call {@link #setTermuxSessionClient} to set the
* {@link TermuxService#mTermuxSessionClient} so that further terminal sessions are directly
* passed the {@link TermuxSessionClient} object which fully implements the
* {@link TerminalSessionClient} interface.
*
* @return Returns the {@link TermuxSessionClient} if {@link TermuxActivity} has bound with
* {@link TermuxService}, otherwise {@link TermuxSessionClientBase}.
*/
public synchronized TermuxSessionClientBase getTermuxSessionClient() {
if (mTermuxSessionClient != null)
return mTermuxSessionClient;
else
return mTermuxSessionClientBase;
}
/** This should be called when {@link TermuxActivity#onServiceConnected} is called to set the
* {@link TermuxService#mTermuxSessionClient} variable and update the {@link TerminalSession}
* and {@link TerminalEmulator} clients in case they were passed {@link TermuxSessionClientBase}
* earlier.
*
* @param termuxSessionClient The {@link TermuxSessionClient} object that fully
* implements the {@link TerminalSessionClient} interface.
*/
public synchronized void setTermuxSessionClient(TermuxSessionClient termuxSessionClient) {
mTermuxSessionClient = termuxSessionClient;
for (int i = 0; i < mTermuxSessions.size(); i++)
mTermuxSessions.get(i).getTerminalSession().updateTerminalSessionClient(mTermuxSessionClient);
}
/** This should be called when {@link TermuxActivity} has been destroyed and in {@link #onUnbind(Intent)}
* so that the {@link TermuxService} and {@link TerminalSession} and {@link TerminalEmulator}
* clients do not hold an activity references.
*/
public synchronized void unsetTermuxSessionClient() {
for (int i = 0; i < mTermuxSessions.size(); i++)
mTermuxSessions.get(i).getTerminalSession().updateTerminalSessionClient(mTermuxSessionClientBase);
mTermuxSessionClient = null;
}
private Notification buildNotification() {
Resources res = getResources();
// Set pending intent to be launched when notification is clicked
Intent notificationIntent = TermuxActivity.newInstance(this);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
// Set notification text
int sessionCount = getTermuxSessionsSize();
int taskCount = mTermuxTasks.size();
String notificationText = sessionCount + " session" + (sessionCount == 1 ? "" : "s");
if (taskCount > 0) {
notificationText += ", " + taskCount + " task" + (taskCount == 1 ? "" : "s");
}
final boolean wakeLockHeld = mWakeLock != null;
if (wakeLockHeld) notificationText += " (wake lock held)";
// Set notification priority
// If holding a wake or wifi lock consider the notification of high priority since it's using power,
// otherwise use a low priority
int priority = (wakeLockHeld) ? Notification.PRIORITY_HIGH : Notification.PRIORITY_LOW;
// Build the notification
Notification.Builder builder = NotificationUtils.geNotificationBuilder(this,
TermuxConstants.TERMUX_APP_NOTIFICATION_CHANNEL_ID, priority,
getText(R.string.application_name), notificationText, null,
pendingIntent, NotificationUtils.NOTIFICATION_MODE_SILENT);
if(builder == null) return null;
// No need to show a timestamp:
builder.setShowWhen(false);
// Set notification icon
builder.setSmallIcon(R.drawable.ic_service_notification);
// Set background color for small notification icon
builder.setColor(0xFF607D8B);
// Termux sessions are always ongoing
builder.setOngoing(true);
// Set Exit button action
Intent exitIntent = new Intent(this, TermuxService.class).setAction(TERMUX_SERVICE.ACTION_STOP_SERVICE);
builder.addAction(android.R.drawable.ic_delete, res.getString(R.string.notification_action_exit), PendingIntent.getService(this, 0, exitIntent, 0));
// Set Wakelock button actions
String newWakeAction = wakeLockHeld ? TERMUX_SERVICE.ACTION_WAKE_UNLOCK : TERMUX_SERVICE.ACTION_WAKE_LOCK;
Intent toggleWakeLockIntent = new Intent(this, TermuxService.class).setAction(newWakeAction);
String actionTitle = res.getString(wakeLockHeld ? R.string.notification_action_wake_unlock : R.string.notification_action_wake_lock);
int actionIcon = wakeLockHeld ? android.R.drawable.ic_lock_idle_lock : android.R.drawable.ic_lock_lock;
builder.addAction(actionIcon, actionTitle, PendingIntent.getService(this, 0, toggleWakeLockIntent, 0));
return builder.build();
}
private void setupNotificationChannel() {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
NotificationUtils.setupNotificationChannel(this, TermuxConstants.TERMUX_APP_NOTIFICATION_CHANNEL_ID,
TermuxConstants.TERMUX_APP_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_LOW);
}
/** Update the shown foreground service notification after making any changes that affect it. */
void updateNotification() {
if (mWakeLock == null && mTermuxSessions.isEmpty() && mTermuxTasks.isEmpty()) {
// Exit if we are updating after the user disabled all locks with no sessions or tasks running.
requestStopService();
} else {
((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).notify(TermuxConstants.TERMUX_APP_NOTIFICATION_ID, buildNotification());
}
}
private void setCurrentStoredTerminalSession(TerminalSession session) {
if(session == null) return;
// Make the newly created session the current one to be displayed:
TermuxAppSharedPreferences preferences = new TermuxAppSharedPreferences(this);
preferences.setCurrentSession(session.mHandle);
}
public synchronized boolean isTermuxSessionsEmpty() {
return mTermuxSessions.isEmpty();
}
public synchronized int getTermuxSessionsSize() {
return mTermuxSessions.size();
}
public synchronized List<TermuxSession> getTermuxSessions() {
return mTermuxSessions;
}
@Nullable
public synchronized TermuxSession getTermuxSession(int index) {
if(index >= 0 && index < mTermuxSessions.size())
return mTermuxSessions.get(index);
else
return null;
}
public synchronized TermuxSession getLastTermuxSession() {
return mTermuxSessions.isEmpty() ? null : mTermuxSessions.get(mTermuxSessions.size() - 1);
}
public synchronized int getIndexOfSession(TerminalSession terminalSession) {
for (int i = 0; i < mTermuxSessions.size(); i++) {
if (mTermuxSessions.get(i).getTerminalSession().equals(terminalSession))
return i;
}
return -1;
}
public synchronized TerminalSession getTerminalSessionForHandle(String sessionHandle) {
TerminalSession terminalSession;
for (int i = 0, len = mTermuxSessions.size(); i < len; i++) {
terminalSession = mTermuxSessions.get(i).getTerminalSession();
if (terminalSession.mHandle.equals(sessionHandle))
return terminalSession;
}
return null;
}
public static synchronized int getNextExecutionId() {
return EXECUTION_ID++;
}
public boolean wantsToStop() {
return mWantsToStop;
}
}
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