Files
arcanechat-android/src/org/thoughtcrime/securesms/connect/ApplicationDcContext.java
T
2020-04-16 12:19:46 +02:00

536 lines
19 KiB
Java

package org.thoughtcrime.securesms.connect;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.os.PowerManager;
import androidx.annotation.IntDef;
import androidx.annotation.NonNull;
import androidx.core.content.FileProvider;
import android.util.Log;
import android.webkit.MimeTypeMap;
import android.widget.Toast;
import com.b44t.messenger.DcChat;
import com.b44t.messenger.DcContact;
import com.b44t.messenger.DcContext;
import com.b44t.messenger.DcEventCenter;
import com.b44t.messenger.DcLot;
import com.b44t.messenger.DcMsg;
import org.thoughtcrime.securesms.ApplicationContext;
import org.thoughtcrime.securesms.BuildConfig;
import org.thoughtcrime.securesms.R;
import org.thoughtcrime.securesms.database.model.ThreadRecord;
import org.thoughtcrime.securesms.recipients.Recipient;
import org.thoughtcrime.securesms.util.Util;
import java.io.File;
import java.util.Date;
import java.util.HashMap;
public class ApplicationDcContext extends DcContext {
public static final String TAG = "DeltaChat";
@IntDef({RECIPIENT_TYPE_CHAT, RECIPIENT_TYPE_CONTACT})
public @interface RecipientType {
}
public static final int RECIPIENT_TYPE_CHAT = 0;
public static final int RECIPIENT_TYPE_CONTACT = 1;
public Context context;
public volatile boolean isScreenOn = false;
public ApplicationDcContext(Context context) {
super("Android "+BuildConfig.VERSION_NAME);
this.context = context;
File dbfile = AccountManager.getInstance().getSelectedAccount(context);
open(dbfile.getAbsolutePath());
try {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
imapWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "imapWakeLock");
imapWakeLock.setReferenceCounted(false); // if the idle-thread is killed for any reasons, it is better not to rely on reference counting
mvboxWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "mvboxWakeLock");
mvboxWakeLock.setReferenceCounted(false); // if the idle-thread is killed for any reasons, it is better not to rely on reference counting
sentboxWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "sentboxWakeLock");
sentboxWakeLock.setReferenceCounted(false); // if the idle-thread is killed for any reasons, it is better not to rely on reference counting
smtpWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "smtpWakeLock");
smtpWakeLock.setReferenceCounted(false); // if the idle-thread is killed for any reasons, it is better not to rely on reference counting
} catch (Exception e) {
Log.e(TAG, "Cannot create wakeLocks");
}
new ForegroundDetector(ApplicationContext.getInstance(context));
startThreads(0);
BroadcastReceiver networkStateReceiver = new NetworkStateReceiver();
context.registerReceiver(networkStateReceiver, new IntentFilter(android.net.ConnectivityManager.CONNECTIVITY_ACTION));
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
BroadcastReceiver screenReceiver = new ScreenReceiver();
context.registerReceiver(screenReceiver, filter);
try {
PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
isScreenOn = pm.isScreenOn();
} catch (Exception e) {
}
if (!isScreenOn) {
KeepAliveService.startSelf(context);
}
}
public void setStockTranslations() {
// the integers are defined in the core and used only here, an enum or sth. like that won't have a big benefit
setStockTranslation(1, context.getString(R.string.chat_no_messages));
setStockTranslation(2, context.getString(R.string.self));
setStockTranslation(3, context.getString(R.string.draft));
setStockTranslation(7, context.getString(R.string.voice_message));
setStockTranslation(8, context.getString(R.string.chat_contact_request));
setStockTranslation(9, context.getString(R.string.image));
setStockTranslation(10, context.getString(R.string.video));
setStockTranslation(11, context.getString(R.string.audio));
setStockTranslation(12, context.getString(R.string.file));
setStockTranslation(13, context.getString(R.string.pref_default_status_text));
setStockTranslation(14, context.getString(R.string.group_hello_draft));
setStockTranslation(15, context.getString(R.string.systemmsg_group_name_changed));
setStockTranslation(16, context.getString(R.string.systemmsg_group_image_changed));
setStockTranslation(17, context.getString(R.string.systemmsg_member_added));
setStockTranslation(18, context.getString(R.string.systemmsg_member_removed));
setStockTranslation(19, context.getString(R.string.systemmsg_group_left));
setStockTranslation(23, context.getString(R.string.gif));
setStockTranslation(29, context.getString(R.string.systemmsg_cannot_decrypt));
setStockTranslation(31, context.getString(R.string.systemmsg_read_receipt_subject));
setStockTranslation(32, context.getString(R.string.systemmsg_read_receipt_body));
setStockTranslation(33, context.getString(R.string.systemmsg_group_image_deleted));
setStockTranslation(35, context.getString(R.string.contact_verified));
setStockTranslation(36, context.getString(R.string.contact_not_verified));
setStockTranslation(37, context.getString(R.string.contact_setup_changed));
setStockTranslation(40, context.getString(R.string.chat_archived_chats_title));
setStockTranslation(42, context.getString(R.string.autocrypt_asm_subject));
setStockTranslation(43, context.getString(R.string.autocrypt_asm_general_body));
setStockTranslation(60, context.getString(R.string.login_error_cannot_login));
setStockTranslation(61, context.getString(R.string.login_error_server_response));
setStockTranslation(62, context.getString(R.string.systemmsg_action_by_user));
setStockTranslation(63, context.getString(R.string.systemmsg_action_by_me));
setStockTranslation(68, context.getString(R.string.device_talk));
setStockTranslation(69, context.getString(R.string.saved_messages));
setStockTranslation(70, context.getString(R.string.device_talk_explain));
setStockTranslation(71, context.getString(R.string.device_talk_welcome_message));
}
public File getImexDir() {
// DIRECTORY_DOCUMENTS is only available since KitKat;
// as we also support Ice Cream Sandwich and Jellybean (2017: 11% in total), this is no option.
// Moreover, DIRECTORY_DOWNLOADS seems to be easier accessible by the user,
// eg. "Download Managers" are nearly always installed.
// CAVE: do not use DownloadManager to add the file as it is deleted on uninstall then ...
return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
}
public static HashMap<String, Integer> sharedFiles = new HashMap<>();
public void openForViewOrShare(Context activity,
int msg_id, String cmd) {
if(!(activity instanceof Activity)) {
// would be nicer to accepting only Activity objects,
// however, typically in Android just Context objects are passed around (as this normally does not make a difference).
// Accepting only Activity here would force callers to cast, which would easily result in even more ugliness.
Toast.makeText(context, "openForViewOrShare() expects an Activity object", Toast.LENGTH_LONG).show();
return;
}
DcMsg msg = getMsg(msg_id);
String path = msg.getFile();
String mimeType = msg.getFilemime();
try {
File file = new File(path);
if (!file.exists()) {
Toast.makeText(context, context.getString(R.string.file_not_found, path), Toast.LENGTH_LONG).show();
return;
}
Uri uri;
if (path.startsWith(getBlobdir())) {
uri = Uri.parse("content://" + BuildConfig.APPLICATION_ID + ".attachments/" + file.getName());
sharedFiles.put("/" + file.getName(), 1); // as different Android version handle uris in putExtra differently, we also check them on our own
} else {
if (Build.VERSION.SDK_INT >= 24) {
uri = FileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".fileprovider", file);
} else {
uri = Uri.fromFile(file);
}
}
if (cmd.equals(Intent.ACTION_VIEW)) {
mimeType = checkMime(path, mimeType);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, mimeType);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
activity.startActivity(intent);
} else {
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType(mimeType);
intent.putExtra(Intent.EXTRA_STREAM, uri);
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
activity.startActivity(Intent.createChooser(intent, context.getString(R.string.chat_share_with_title)));
}
} catch (RuntimeException e) {
Toast.makeText(context, String.format("%s (%s)", context.getString(R.string.no_app_to_handle_data), mimeType), Toast.LENGTH_LONG).show();
Log.i(TAG, "opening of external activity failed.", e);
}
}
private String checkMime(String path, String mimeType) {
if(mimeType == null || mimeType.equals("application/octet-stream")) {
path = path.replaceAll(" ", "");
String extension = MimeTypeMap.getFileExtensionFromUrl(path);
String newType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
if(newType != null) return newType;
}
return mimeType;
}
public String getBlobdirFile(String filename, String ext) {
String outPath = null;
for (int i = 0; i < 1000; i++) {
String test = getBlobdir() + "/" + filename + (i == 0 ? "" : i < 100 ? "-" + i : "-" + (new Date().getTime() + i)) + ext;
if (!new File(test).exists()) {
outPath = test;
break;
}
}
if(outPath==null) {
// should not happen
outPath = getBlobdir() + "/" + Math.random();
}
return outPath;
}
public String getBlobdirFile(String path) {
String filename = path.substring(path.lastIndexOf('/')+1); // is the whole path if '/' is not found (lastIndexOf() returns -1 then)
String ext = "";
int point = filename.indexOf('.');
if(point!=-1) {
ext = filename.substring(point);
filename = filename.substring(0, point);
}
return getBlobdirFile(filename, ext);
}
/***********************************************************************************************
* create objects compatible to the database model of Signal
**********************************************************************************************/
@NonNull
public Recipient getRecipient(@RecipientType int recipientType, int id) {
switch (recipientType) {
case RECIPIENT_TYPE_CHAT:
return getRecipient(getChat(id));
case RECIPIENT_TYPE_CONTACT:
return getRecipient(getContact(id));
default:
throw new IllegalArgumentException("Wrong RecipientType");
}
}
@NonNull
public Recipient getRecipient(DcChat chat) {
return new Recipient(context, chat, null);
}
@NonNull
public Recipient getRecipient(DcContact contact) {
return new Recipient(context, null, contact);
}
@NonNull
public ThreadRecord getThreadRecord(DcLot summary, DcChat chat) { // adapted from ThreadDatabase.getCurrent()
int chatId = chat.getId();
String body = summary.getText1();
if (!body.isEmpty()) {
body += ": ";
}
body += summary.getText2();
Recipient recipient = getRecipient(chat);
long date = summary.getTimestamp();
int unreadCount = getFreshMsgCount(chatId);
boolean verified = chat.isVerified();
return new ThreadRecord(context, body, recipient, date,
unreadCount, chatId,
chat.getVisibility(), verified, chat.isSendingLocations(), summary);
}
/***********************************************************************************************
* Working Threads
**********************************************************************************************/
private final Object threadsCritical = new Object();
private final Object incLoopsCritical= new Object();
public Thread imapThread = null;
private PowerManager.WakeLock imapWakeLock = null;
private int inboxLoops = 0;
public Thread mvboxThread = null;
private PowerManager.WakeLock mvboxWakeLock = null;
private int mvboxLoops = 0;
public Thread sentboxThread = null;
private PowerManager.WakeLock sentboxWakeLock = null;
public Thread smtpThread = null;
private PowerManager.WakeLock smtpWakeLock = null;
private int smtpLoops = 0;
public final static int INTERRUPT_IDLE = 0x01; // interrupt idle if the thread is already running
public void startThreads(int flags) {
synchronized (threadsCritical) {
if (imapThread == null || !imapThread.isAlive()) {
imapThread = new Thread(() -> {
Log.i(TAG, "###################### IMAP-Thread started. ######################");
while (true) {
imapWakeLock.acquire();
performImapJobs();
performImapFetch();
imapWakeLock.release();
synchronized (incLoopsCritical) {
inboxLoops++;
}
performImapIdle();
}
}, "imapThread");
imapThread.setPriority(Thread.NORM_PRIORITY);
imapThread.start();
} else {
if ((flags & INTERRUPT_IDLE) != 0) {
interruptImapIdle();
}
}
if (mvboxThread == null || !mvboxThread.isAlive()) {
mvboxThread = new Thread(() -> {
Log.i(TAG, "###################### MVBOX-Thread started. ######################");
while (true) {
mvboxWakeLock.acquire();
performMvboxJobs();
performMvboxFetch();
mvboxWakeLock.release();
synchronized (incLoopsCritical) {
mvboxLoops++;
}
performMvboxIdle();
}
}, "mvboxThread");
mvboxThread.setPriority(Thread.NORM_PRIORITY);
mvboxThread.start();
} else {
if ((flags & INTERRUPT_IDLE) != 0) {
interruptMvboxIdle();
}
}
if (sentboxThread == null || !sentboxThread.isAlive()) {
sentboxThread = new Thread(() -> {
Log.i(TAG, "###################### SENTBOX-Thread started. ######################");
while (true) {
sentboxWakeLock.acquire();
performSentboxJobs();
performSentboxFetch();
sentboxWakeLock.release();
performSentboxIdle();
}
}, "sentboxThread");
sentboxThread.setPriority(Thread.NORM_PRIORITY-1);
sentboxThread.start();
} else {
if ((flags & INTERRUPT_IDLE) != 0) {
interruptSentboxIdle();
}
}
if (smtpThread == null || !smtpThread.isAlive()) {
smtpThread = new Thread(() -> {
Log.i(TAG, "###################### SMTP-Thread started. ######################");
while (true) {
smtpWakeLock.acquire();
performSmtpJobs();
smtpWakeLock.release();
synchronized (incLoopsCritical) {
smtpLoops++;
}
performSmtpIdle();
}
}, "smtpThread");
smtpThread.setPriority(Thread.MAX_PRIORITY);
smtpThread.start();
}
}
}
public void waitForThreadsExecutedOnce() {
while(true) {
synchronized (incLoopsCritical) {
if(inboxLoops>0 && mvboxLoops>0 && smtpLoops>0) {
break;
}
}
Util.sleep(500);
}
}
/***********************************************************************************************
* Tools
**********************************************************************************************/
public boolean isNetworkConnected() {
try {
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = cm.getActiveNetworkInfo();
if (netInfo != null && netInfo.isConnected()) {
return true;
}
} catch (Exception e) {
}
return false;
}
/***********************************************************************************************
* Event Handling
**********************************************************************************************/
public DcEventCenter eventCenter = new DcEventCenter();
private final Object lastErrorLock = new Object();
private String lastErrorString = "";
private boolean showNextErrorAsToast = true;
public void captureNextError() {
synchronized (lastErrorLock) {
showNextErrorAsToast = false;
lastErrorString = "";
}
}
public boolean hasCapturedError() {
synchronized (lastErrorLock) {
return !lastErrorString.isEmpty();
}
}
public String getCapturedError() {
synchronized (lastErrorLock) {
return lastErrorString;
}
}
public void endCaptureNextError() {
synchronized (lastErrorLock) {
showNextErrorAsToast = true;
}
}
private void handleError(int event, boolean popUp, String string) {
// log error
boolean showAsToast;
Log.e(TAG, string);
synchronized (lastErrorLock) {
lastErrorString = string;
showAsToast = showNextErrorAsToast;
showNextErrorAsToast = true;
}
// show error to user
Util.runOnMain(() -> {
if (popUp && showAsToast) {
String toastString = string;
if (event == DC_EVENT_ERROR_NETWORK) {
if (!isNetworkConnected()) {
toastString = context.getString(R.string.error_no_network);
}
}
else if (event == DC_EVENT_ERROR_SELF_NOT_IN_GROUP) {
toastString = context.getString(R.string.group_self_not_in_group);
}
ForegroundDetector foregroundDetector = ForegroundDetector.getInstance();
if (foregroundDetector==null || foregroundDetector.isForeground()) {
Toast.makeText(context, toastString, Toast.LENGTH_LONG).show();
}
}
});
}
@Override
public long handleEvent(final int event, long data1, long data2) {
switch (event) {
case DC_EVENT_INFO:
Log.i(TAG, dataToString(data2));
break;
case DC_EVENT_WARNING:
Log.w(TAG, dataToString(data2));
break;
case DC_EVENT_ERROR:
handleError(event, true, dataToString(data2));
break;
case DC_EVENT_ERROR_NETWORK:
handleError(event, data1 != 0, dataToString(data2));
break;
case DC_EVENT_ERROR_SELF_NOT_IN_GROUP:
handleError(event, true, dataToString(data2));
break;
default: {
final Object data1obj = data1IsString(event) ? dataToString(data1) : data1;
final Object data2obj = data2IsString(event) ? dataToString(data2) : data2;
if (eventCenter != null) {
eventCenter.sendToObservers(event, data1obj, data2obj);
}
}
break;
}
return 0;
}
}