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package eu.siacs.conversations.persistance;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.RectF;
import android.net.Uri;
import android.os.Environment;
import android.util.Base64;
import android.util.Base64OutputStream;
import android.util.Log;
import android.webkit.MimeTypeMap;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.URL;
import java.security.DigestOutputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.Locale;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.webkit.MimeTypeMap;
import de.thedevstack.android.logcat.Logging;
import de.thedevstack.conversationsplus.ConversationsPlusApplication;
import de.thedevstack.conversationsplus.ConversationsPlusPreferences;
import de.thedevstack.conversationsplus.exceptions.FileCopyException;
import de.thedevstack.conversationsplus.utils.StreamUtil;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
import eu.siacs.conversations.entities.Transferable;
import eu.siacs.conversations.entities.DownloadableFile;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.entities.Transferable;
import eu.siacs.conversations.services.XmppConnectionService;
import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.utils.ExifHelper;
import eu.siacs.conversations.utils.FileUtils;
import eu.siacs.conversations.xmpp.pep.Avatar;
public class FileBackend {
private final SimpleDateFormat imageDateFormat = new SimpleDateFormat("yyyyMMdd_HHmmssSSS", Locale.US);
private XmppConnectionService mXmppConnectionService;
public FileBackend(XmppConnectionService service) {
this.mXmppConnectionService = service;
}
public DownloadableFile getFile(Message message) {
return getFile(message, true);
}
public DownloadableFile getFile(Message message, boolean decrypted) {
final boolean encrypted = !decrypted
&& (message.getEncryption() == Message.ENCRYPTION_PGP
|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
final DownloadableFile file;
String path = message.getRelativeFilePath();
if (path == null) {
path = message.getUuid();
}
if (path.startsWith("/")) {
file = new DownloadableFile(path);
} else {
String mime = message.getMimeType();
if (mime != null && mime.startsWith("image")) {
file = new DownloadableFile(getConversationsImageDirectory() + path);
} else {
file = new DownloadableFile(getConversationsFileDirectory() + path);
}
}
if (encrypted) {
return new DownloadableFile(getConversationsFileDirectory() + file.getName() + ".pgp");
} else {
return file;
}
}
public static String getConversationsFileDirectory() {
return Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + ConversationsPlusPreferences.fileTransferFolder() + File.separator;
}
public static String getConversationsImageDirectory() {
return Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).getAbsolutePath() + File.separator + ConversationsPlusPreferences.imgTransferFolder() + File.separator;
}
private static String getPrivateFileDirectoryPath() {
return ConversationsPlusApplication.getPrivateFilesDir().getAbsolutePath();
}
private static String getPrivateImageDirectoryPath() {
return FileBackend.getPrivateFileDirectoryPath() + File.separator + "Images" + File.separator;
}
public boolean useImageAsIs(Uri uri) {
String path = getOriginalPath(uri);
if (path == null) {
return false;
}
File file = new File(path);
long size = file.length();
if (size == 0 || size >= Config.IMAGE_MAX_SIZE ) {
return false;
}
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
try {
BitmapFactory.decodeStream(mXmppConnectionService.getContentResolver().openInputStream(uri), null, options);
if (options == null || options.outMimeType == null || options.outHeight <= 0 || options.outWidth <= 0) {
return false;
}
return (options.outWidth <= Config.IMAGE_SIZE && options.outHeight <= Config.IMAGE_SIZE && options.outMimeType.contains(Config.IMAGE_FORMAT.name().toLowerCase()));
} catch (FileNotFoundException e) {
return false;
}
}
public String getOriginalPath(Uri uri) {
return FileUtils.getPath(mXmppConnectionService,uri);
}
public void copyFileToPrivateStorage(File file, Uri uri) throws FileCopyException {
file.getParentFile().mkdirs();
OutputStream os = null;
InputStream is = null;
try {
file.createNewFile();
os = new FileOutputStream(file);
is = StreamUtil.openInputStreamFromContentResolver(uri);
byte[] buffer = new byte[1024];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
os.flush();
} catch(FileNotFoundException e) {
throw new FileCopyException(R.string.error_file_not_found);
} catch (IOException e) {
e.printStackTrace();
throw new FileCopyException(R.string.error_io_exception);
} finally {
StreamUtil.close(os);
StreamUtil.close(is);
}
Logging.d(Config.LOGTAG, "output file name " + file);
return file;
}
public void copyFileToPrivateStorage(Message message, Uri uri) throws FileCopyException {
Log.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage");
String mime = mXmppConnectionService.getContentResolver().getType(uri);
String extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(mime);
message.setRelativeFilePath(message.getUuid() + "." + extension);
copyFileToPrivateStorage(mXmppConnectionService.getFileBackend().getFile(message), uri);
}
private void copyImageToPrivateStorage(File file, Uri image, int sampleSize) throws FileCopyException {
file.getParentFile().mkdirs();
InputStream is = null;
OutputStream os = null;
try {
file.createNewFile();
is = mXmppConnectionService.getContentResolver().openInputStream(image);
Bitmap originalBitmap;
BitmapFactory.Options options = new BitmapFactory.Options();
int inSampleSize = (int) Math.pow(2, sampleSize);
Log.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
options.inSampleSize = inSampleSize;
originalBitmap = BitmapFactory.decodeStream(is, null, options);
is.close();
if (originalBitmap == null) {
throw new FileCopyException(R.string.error_not_an_image_file);
}
Bitmap scaledBitmap = resize(originalBitmap, Config.IMAGE_SIZE);
int rotation = getRotation(image);
scaledBitmap = rotate(scaledBitmap, rotation);
boolean targetSizeReached = false;
int quality = Config.IMAGE_QUALITY;
while(!targetSizeReached) {
os = new FileOutputStream(file);
boolean success = scaledBitmap.compress(Config.IMAGE_FORMAT, quality, os);
if (!success) {
throw new FileCopyException(R.string.error_compressing_image);
}
os.flush();
targetSizeReached = file.length() <= Config.IMAGE_MAX_SIZE || quality <= 50;
quality -= 5;
}
scaledBitmap.recycle();
return;
} catch (FileNotFoundException e) {
throw new FileCopyException(R.string.error_file_not_found);
} catch (IOException e) {
e.printStackTrace();
throw new FileCopyException(R.string.error_io_exception);
} catch (SecurityException e) {
throw new FileCopyException(R.string.error_security_exception_during_image_copy);
} catch (OutOfMemoryError e) {
++sampleSize;
if (sampleSize <= 3) {
copyImageToPrivateStorage(file, image, sampleSize);
} else {
throw new FileCopyException(R.string.error_out_of_memory);
}
} catch (NullPointerException e) {
throw new FileCopyException(R.string.error_io_exception);
} finally {
StreamUtil.close(os);
StreamUtil.close(is);
}
}
public void copyImageToPrivateStorage(File file, Uri image) throws FileCopyException {
copyImageToPrivateStorage(file, image, 0);
}
public void copyImageToPrivateStorage(Message message, Uri image) throws FileCopyException {
switch(Config.IMAGE_FORMAT) {
case JPEG:
message.setRelativeFilePath(message.getUuid()+".jpg");
break;
case PNG:
message.setRelativeFilePath(message.getUuid()+".png");
break;
case WEBP:
message.setRelativeFilePath(message.getUuid()+".webp");
break;
}
copyImageToPrivateStorage(getFile(message), image);
updateFileParams(message);
}
public static Uri getTakePhotoUri() {
StringBuilder pathBuilder = new StringBuilder();
pathBuilder.append(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM));
pathBuilder.append('/');
pathBuilder.append("Camera");
pathBuilder.append('/');
pathBuilder.append("IMG_" + this.imageDateFormat.format(new Date()) + ".jpg");
Uri uri = Uri.parse("file://" + pathBuilder.toString());
File file = new File(uri.toString());
file.getParentFile().mkdirs();
return uri;
}
public static Uri getJingleFileUri(Message message) {
File file = getFile(message);
return Uri.parse("file://" + file.getAbsolutePath());
}
public static boolean isFileAvailable(Message message) {
return getFile(message).exists();
}
private FileBackend() {
// Static helper class
}
}
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