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package eu.siacs.conversations.persistance;
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.URL;
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.exceptions.FileCopyException;
import de.thedevstack.conversationsplus.utils.ImageUtil;
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;
public final class FileBackend {
private static int IMAGE_SIZE = 1920;
private static final SimpleDateFormat imageDateFormat = new SimpleDateFormat("yyyyMMdd_HHmmssSSS", Locale.US);
public static DownloadableFile getFile(Message message) {
return getFile(message, true);
}
public static DownloadableFile getFile(Message message, boolean decrypted) {
String path = message.getRelativeFilePath();
String extension;
if (path != null && !path.isEmpty()) {
String[] parts = path.split("\\.");
extension = "."+parts[parts.length - 1];
} else {
if (message.getType() == Message.TYPE_IMAGE || message.getType() == Message.TYPE_TEXT) {
extension = ".webp";
} else {
extension = "";
}
path = message.getUuid()+extension;
}
final boolean encrypted = !decrypted
&& (message.getEncryption() == Message.ENCRYPTION_PGP
|| message.getEncryption() == Message.ENCRYPTION_DECRYPTED);
if (encrypted) {
return new DownloadableFile(getConversationsFileDirectory()+message.getUuid()+extension+".pgp");
} else {
if (path.startsWith("/")) {
return new DownloadableFile(path);
} else {
if (Arrays.asList(Transferable.VALID_IMAGE_EXTENSIONS).contains(extension)) {
return new DownloadableFile(getConversationsFileDirectory() + path);
} else {
return new DownloadableFile(getConversationsImageDirectory() + path);
}
}
}
}
public static String getConversationsFileDirectory() {
return Environment.getExternalStorageDirectory().getAbsolutePath()+"/Conversations/";
}
public static String getConversationsImageDirectory() {
return Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_PICTURES).getAbsolutePath()
+ "/Conversations/";
}
public static DownloadableFile copyFileToPrivateStorage(Message message, Uri uri) throws FileCopyException {
Logging.d(Config.LOGTAG, "copy " + uri.toString() + " to private storage");
String mime = ConversationsPlusApplication.getInstance().getContentResolver().getType(uri);
String extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(mime);
message.setRelativeFilePath(message.getUuid() + "." + extension);
DownloadableFile file = getFile(message);
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 static DownloadableFile copyImageToPrivateStorage(Message message, Uri image)
throws FileCopyException {
return copyImageToPrivateStorage(message, image, 0);
}
private static DownloadableFile copyImageToPrivateStorage(Message message,
Uri image, int sampleSize) throws FileCopyException {
DownloadableFile file = getFile(message);
file.getParentFile().mkdirs();
InputStream is = null;
OutputStream os = null;
try {
file.createNewFile();
is = StreamUtil.openInputStreamFromContentResolver(image);
os = new FileOutputStream(file);
Bitmap originalBitmap;
BitmapFactory.Options options = new BitmapFactory.Options();
int inSampleSize = (int) Math.pow(2, sampleSize);
Logging.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 = ImageUtil.resize(originalBitmap, IMAGE_SIZE);
int rotation = ImageUtil.getRotation(image);
if (rotation > 0) {
scaledBitmap = ImageUtil.rotate(scaledBitmap, rotation);
}
boolean success = scaledBitmap.compress(Bitmap.CompressFormat.WEBP, 75, os);
if (!success) {
throw new FileCopyException(R.string.error_compressing_image);
}
os.flush();
long size = file.getSize();
int width = scaledBitmap.getWidth();
int height = scaledBitmap.getHeight();
message.setBody(Long.toString(size) + '|' + width + '|' + height);
return file;
} 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) {
return copyImageToPrivateStorage(message, 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 static Uri getTakePhotoUri() {
StringBuilder pathBuilder = new StringBuilder();
pathBuilder.append(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM));
pathBuilder.append('/');
pathBuilder.append("Camera");
pathBuilder.append('/');
pathBuilder.append("IMG_" + 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 void updateFileParams(Message message) {
updateFileParams(message,null);
}
public static void updateFileParams(Message message, URL url) {
DownloadableFile file = getFile(message);
if (message.getType() == Message.TYPE_IMAGE || file.getMimeType().startsWith("image/")) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(file.getAbsolutePath(), options);
int imageHeight = options.outHeight;
int imageWidth = options.outWidth;
if (url == null) {
message.setBody(Long.toString(file.getSize()) + '|' + imageWidth + '|' + imageHeight);
} else {
message.setBody(url.toString()+"|"+Long.toString(file.getSize()) + '|' + imageWidth + '|' + imageHeight);
}
} else {
if (url != null) {
message.setBody(url.toString()+"|"+Long.toString(file.getSize()));
} else {
message.setBody(Long.toString(file.getSize()));
}
}
}
public static boolean isFileAvailable(Message message) {
return getFile(message).exists();
}
private FileBackend() {
// Static helper class
}
}
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