diff options
Diffstat (limited to 'src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java')
-rw-r--r-- | src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java b/src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java deleted file mode 100644 index 3a245d62..00000000 --- a/src/main/java/de/thedevstack/conversationsplus/persistance/FileBackend.java +++ /dev/null @@ -1,549 +0,0 @@ -package de.thedevstack.conversationsplus.persistance; - -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.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.database.Cursor; -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.provider.MediaStore; -import android.util.Base64; -import android.util.Base64OutputStream; -import android.util.Log; -import android.webkit.MimeTypeMap; - -import de.thedevstack.conversationsplus.Config; -import de.thedevstack.conversationsplus.R; -import de.thedevstack.conversationsplus.entities.Transferable; -import de.thedevstack.conversationsplus.entities.DownloadableFile; -import de.thedevstack.conversationsplus.entities.Message; -import de.thedevstack.conversationsplus.services.XmppConnectionService; -import de.thedevstack.conversationsplus.utils.CryptoHelper; -import de.thedevstack.conversationsplus.utils.ExifHelper; -import de.thedevstack.conversationsplus.xmpp.pep.Avatar; - -public class FileBackend { - - private static int IMAGE_SIZE = 1920; - - 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) { - 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 Bitmap resize(Bitmap originalBitmap, int size) { - int w = originalBitmap.getWidth(); - int h = originalBitmap.getHeight(); - if (Math.max(w, h) > size) { - int scalledW; - int scalledH; - if (w <= h) { - scalledW = (int) (w / ((double) h / size)); - scalledH = size; - } else { - scalledW = size; - scalledH = (int) (h / ((double) w / size)); - } - return Bitmap.createScaledBitmap(originalBitmap, scalledW, scalledH, true); - } else { - return originalBitmap; - } - } - - public Bitmap rotate(Bitmap bitmap, int degree) { - int w = bitmap.getWidth(); - int h = bitmap.getHeight(); - Matrix mtx = new Matrix(); - mtx.postRotate(degree); - return Bitmap.createBitmap(bitmap, 0, 0, w, h, mtx, true); - } - - public String getOriginalPath(Uri uri) { - String path = null; - if (uri.getScheme().equals("file")) { - return uri.getPath(); - } else if (uri.toString().startsWith("content://media/")) { - String[] projection = {MediaStore.MediaColumns.DATA}; - Cursor metaCursor = mXmppConnectionService.getContentResolver().query(uri, - projection, null, null, null); - if (metaCursor != null) { - try { - if (metaCursor.moveToFirst()) { - path = metaCursor.getString(0); - } - } finally { - metaCursor.close(); - } - } - } - return path; - } - - public DownloadableFile 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); - DownloadableFile file = mXmppConnectionService.getFileBackend().getFile(message); - file.getParentFile().mkdirs(); - OutputStream os = null; - InputStream is = null; - try { - file.createNewFile(); - os = new FileOutputStream(file); - is = mXmppConnectionService.getContentResolver().openInputStream(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 { - close(os); - close(is); - } - Log.d(Config.LOGTAG, "output file name " + mXmppConnectionService.getFileBackend().getFile(message)); - return file; - } - - public DownloadableFile copyImageToPrivateStorage(Message message, Uri image) - throws FileCopyException { - return this.copyImageToPrivateStorage(message, image, 0); - } - - private 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 = mXmppConnectionService.getContentResolver().openInputStream(image); - os = new FileOutputStream(file); - - 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, IMAGE_SIZE); - int rotation = getRotation(image); - if (rotation > 0) { - scaledBitmap = 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 { - close(os); - close(is); - } - } - - private int getRotation(Uri image) { - InputStream is = null; - try { - is = mXmppConnectionService.getContentResolver().openInputStream(image); - return ExifHelper.getOrientation(is); - } catch (FileNotFoundException e) { - return 0; - } finally { - close(is); - } - } - - public Bitmap getThumbnail(Message message, int size, boolean cacheOnly) - throws FileNotFoundException { - Bitmap thumbnail = mXmppConnectionService.getBitmapCache().get( - message.getUuid()); - if ((thumbnail == null) && (!cacheOnly)) { - File file = getFile(message); - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inSampleSize = calcSampleSize(file, size); - Bitmap fullsize = BitmapFactory.decodeFile(file.getAbsolutePath(),options); - if (fullsize == null) { - throw new FileNotFoundException(); - } - thumbnail = resize(fullsize, size); - this.mXmppConnectionService.getBitmapCache().put(message.getUuid(), - thumbnail); - } - return thumbnail; - } - - public 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 Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) { - try { - Avatar avatar = new Avatar(); - Bitmap bm = cropCenterSquare(image, size); - if (bm == null) { - return null; - } - ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream(); - Base64OutputStream mBase64OutputSttream = new Base64OutputStream( - mByteArrayOutputStream, Base64.DEFAULT); - MessageDigest digest = MessageDigest.getInstance("SHA-1"); - DigestOutputStream mDigestOutputStream = new DigestOutputStream( - mBase64OutputSttream, digest); - if (!bm.compress(format, 75, mDigestOutputStream)) { - return null; - } - mDigestOutputStream.flush(); - mDigestOutputStream.close(); - avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest()); - avatar.image = new String(mByteArrayOutputStream.toByteArray()); - return avatar; - } catch (NoSuchAlgorithmException e) { - return null; - } catch (IOException e) { - return null; - } - } - - public boolean isAvatarCached(Avatar avatar) { - File file = new File(getAvatarPath(avatar.getFilename())); - return file.exists(); - } - - public boolean save(Avatar avatar) { - File file; - if (isAvatarCached(avatar)) { - file = new File(getAvatarPath(avatar.getFilename())); - } else { - String filename = getAvatarPath(avatar.getFilename()); - file = new File(filename + ".tmp"); - file.getParentFile().mkdirs(); - OutputStream os = null; - try { - file.createNewFile(); - os = new FileOutputStream(file); - MessageDigest digest = MessageDigest.getInstance("SHA-1"); - digest.reset(); - DigestOutputStream mDigestOutputStream = new DigestOutputStream(os, digest); - mDigestOutputStream.write(avatar.getImageAsBytes()); - mDigestOutputStream.flush(); - mDigestOutputStream.close(); - String sha1sum = CryptoHelper.bytesToHex(digest.digest()); - if (sha1sum.equals(avatar.sha1sum)) { - file.renameTo(new File(filename)); - } else { - Log.d(Config.LOGTAG, "sha1sum mismatch for " + avatar.owner); - file.delete(); - return false; - } - } catch (FileNotFoundException e) { - return false; - } catch (IOException e) { - return false; - } catch (NoSuchAlgorithmException e) { - return false; - } finally { - close(os); - } - } - avatar.size = file.length(); - return true; - } - - public String getAvatarPath(String avatar) { - return mXmppConnectionService.getFilesDir().getAbsolutePath()+ "/avatars/" + avatar; - } - - public Uri getAvatarUri(String avatar) { - return Uri.parse("file:" + getAvatarPath(avatar)); - } - - public Bitmap cropCenterSquare(Uri image, int size) { - if (image == null) { - return null; - } - InputStream is = null; - try { - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inSampleSize = calcSampleSize(image, size); - is = mXmppConnectionService.getContentResolver().openInputStream(image); - Bitmap input = BitmapFactory.decodeStream(is, null, options); - if (input == null) { - return null; - } else { - int rotation = getRotation(image); - if (rotation > 0) { - input = rotate(input, rotation); - } - return cropCenterSquare(input, size); - } - } catch (FileNotFoundException e) { - return null; - } finally { - close(is); - } - } - - public Bitmap cropCenter(Uri image, int newHeight, int newWidth) { - if (image == null) { - return null; - } - InputStream is = null; - try { - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inSampleSize = calcSampleSize(image,Math.max(newHeight, newWidth)); - is = mXmppConnectionService.getContentResolver().openInputStream(image); - Bitmap source = BitmapFactory.decodeStream(is, null, options); - if (source == null) { - return null; - } - int sourceWidth = source.getWidth(); - int sourceHeight = source.getHeight(); - float xScale = (float) newWidth / sourceWidth; - float yScale = (float) newHeight / sourceHeight; - float scale = Math.max(xScale, yScale); - float scaledWidth = scale * sourceWidth; - float scaledHeight = scale * sourceHeight; - float left = (newWidth - scaledWidth) / 2; - float top = (newHeight - scaledHeight) / 2; - - RectF targetRect = new RectF(left, top, left + scaledWidth, top + scaledHeight); - Bitmap dest = Bitmap.createBitmap(newWidth, newHeight, Bitmap.Config.ARGB_8888); - Canvas canvas = new Canvas(dest); - canvas.drawBitmap(source, null, targetRect, null); - return dest; - } catch (FileNotFoundException e) { - return null; - } finally { - close(is); - } - } - - public Bitmap cropCenterSquare(Bitmap input, int size) { - int w = input.getWidth(); - int h = input.getHeight(); - - float scale = Math.max((float) size / h, (float) size / w); - - float outWidth = scale * w; - float outHeight = scale * h; - float left = (size - outWidth) / 2; - float top = (size - outHeight) / 2; - RectF target = new RectF(left, top, left + outWidth, top + outHeight); - - Bitmap output = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); - Canvas canvas = new Canvas(output); - canvas.drawBitmap(input, null, target, null); - return output; - } - - private int calcSampleSize(Uri image, int size) throws FileNotFoundException { - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inJustDecodeBounds = true; - BitmapFactory.decodeStream(mXmppConnectionService.getContentResolver().openInputStream(image), null, options); - return calcSampleSize(options, size); - } - - private int calcSampleSize(File image, int size) { - BitmapFactory.Options options = new BitmapFactory.Options(); - options.inJustDecodeBounds = true; - BitmapFactory.decodeFile(image.getAbsolutePath(), options); - return calcSampleSize(options, size); - } - - private int calcSampleSize(BitmapFactory.Options options, int size) { - int height = options.outHeight; - int width = options.outWidth; - int inSampleSize = 1; - - if (height > size || width > size) { - int halfHeight = height / 2; - int halfWidth = width / 2; - - while ((halfHeight / inSampleSize) > size - && (halfWidth / inSampleSize) > size) { - inSampleSize *= 2; - } - } - return inSampleSize; - } - - public Uri getJingleFileUri(Message message) { - File file = getFile(message); - return Uri.parse("file://" + file.getAbsolutePath()); - } - - public void updateFileParams(Message message) { - updateFileParams(message,null); - } - - public 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 class FileCopyException extends Exception { - private static final long serialVersionUID = -1010013599132881427L; - private int resId; - - public FileCopyException(int resId) { - this.resId = resId; - } - - public int getResId() { - return resId; - } - } - - public Bitmap getAvatar(String avatar, int size) { - if (avatar == null) { - return null; - } - Bitmap bm = cropCenter(getAvatarUri(avatar), size, size); - if (bm == null) { - return null; - } - return bm; - } - - public boolean isFileAvailable(Message message) { - return getFile(message).exists(); - } - - public static void close(Closeable stream) { - if (stream != null) { - try { - stream.close(); - } catch (IOException e) { - } - } - } -} |