From 281ce3105fad5f012471cf3e5062a4032dfbc7a6 Mon Sep 17 00:00:00 2001 From: Sam Whited Date: Wed, 22 Oct 2014 15:44:55 -0400 Subject: Make conversations the root project --- .../conversations/persistance/FileBackend.java | 480 +++++++++++++++++++++ 1 file changed, 480 insertions(+) create mode 100644 src/main/java/eu/siacs/conversations/persistance/FileBackend.java (limited to 'src/main/java/eu/siacs/conversations/persistance/FileBackend.java') diff --git a/src/main/java/eu/siacs/conversations/persistance/FileBackend.java b/src/main/java/eu/siacs/conversations/persistance/FileBackend.java new file mode 100644 index 00000000..b891e9ef --- /dev/null +++ b/src/main/java/eu/siacs/conversations/persistance/FileBackend.java @@ -0,0 +1,480 @@ +package eu.siacs.conversations.persistance; + +import java.io.ByteArrayOutputStream; +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.security.DigestOutputStream; +import java.security.MessageDigest; +import java.security.NoSuchAlgorithmException; +import java.text.SimpleDateFormat; +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.media.ExifInterface; +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 eu.siacs.conversations.Config; +import eu.siacs.conversations.R; +import eu.siacs.conversations.entities.Conversation; +import eu.siacs.conversations.entities.DownloadableFile; +import eu.siacs.conversations.entities.Message; +import eu.siacs.conversations.services.XmppConnectionService; +import eu.siacs.conversations.utils.CryptoHelper; +import eu.siacs.conversations.xmpp.pep.Avatar; + +public class FileBackend { + + private static int IMAGE_SIZE = 1920; + + private 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) { + StringBuilder filename = new StringBuilder(); + filename.append(getConversationsDirectory()); + filename.append(message.getUuid()); + if ((decrypted) || (message.getEncryption() == Message.ENCRYPTION_NONE)) { + filename.append(".webp"); + } else { + if (message.getEncryption() == Message.ENCRYPTION_OTR) { + filename.append(".webp"); + } else { + filename.append(".webp.pgp"); + } + } + return new DownloadableFile(filename.toString()); + } + + public static String getConversationsDirectory() { + 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)); + } + Bitmap scalledBitmap = Bitmap.createScaledBitmap(originalBitmap, + scalledW, scalledH, true); + return scalledBitmap; + } 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 DownloadableFile copyImageToPrivateStorage(Message message, Uri image) + throws ImageCopyException { + return this.copyImageToPrivateStorage(message, image, 0); + } + + private DownloadableFile copyImageToPrivateStorage(Message message, + Uri image, int sampleSize) throws ImageCopyException { + try { + InputStream is = mXmppConnectionService.getContentResolver() + .openInputStream(image); + DownloadableFile file = getFile(message); + file.getParentFile().mkdirs(); + file.createNewFile(); + 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 ImageCopyException(R.string.error_not_an_image_file); + } + Bitmap scalledBitmap = resize(originalBitmap, IMAGE_SIZE); + originalBitmap = null; + int rotation = getRotation(image); + if (rotation > 0) { + scalledBitmap = rotate(scalledBitmap, rotation); + } + OutputStream os = new FileOutputStream(file); + boolean success = scalledBitmap.compress( + Bitmap.CompressFormat.WEBP, 75, os); + if (!success) { + throw new ImageCopyException(R.string.error_compressing_image); + } + os.flush(); + os.close(); + long size = file.getSize(); + int width = scalledBitmap.getWidth(); + int height = scalledBitmap.getHeight(); + message.setBody(Long.toString(size) + ',' + width + ',' + height); + return file; + } catch (FileNotFoundException e) { + throw new ImageCopyException(R.string.error_file_not_found); + } catch (IOException e) { + throw new ImageCopyException(R.string.error_io_exception); + } catch (SecurityException e) { + throw new ImageCopyException( + R.string.error_security_exception_during_image_copy); + } catch (OutOfMemoryError e) { + ++sampleSize; + if (sampleSize <= 3) { + return copyImageToPrivateStorage(message, image, sampleSize); + } else { + throw new ImageCopyException(R.string.error_out_of_memory); + } + } + } + + private int getRotation(Uri image) { + if ("content".equals(image.getScheme())) { + try { + Cursor cursor = mXmppConnectionService + .getContentResolver() + .query(image, + new String[] { MediaStore.Images.ImageColumns.ORIENTATION }, + null, null, null); + if (cursor.getCount() != 1) { + return -1; + } + cursor.moveToFirst(); + return cursor.getInt(0); + } catch (IllegalArgumentException e) { + return -1; + } + } else { + ExifInterface exif; + try { + exif = new ExifInterface(image.toString()); + if (exif.getAttribute(ExifInterface.TAG_ORIENTATION) + .equalsIgnoreCase("6")) { + return 90; + } else if (exif.getAttribute(ExifInterface.TAG_ORIENTATION) + .equalsIgnoreCase("8")) { + return 270; + } else if (exif.getAttribute(ExifInterface.TAG_ORIENTATION) + .equalsIgnoreCase("3")) { + return 180; + } else { + return 0; + } + } catch (IOException e) { + return -1; + } + } + } + + public Bitmap getImageFromMessage(Message message) { + return BitmapFactory.decodeFile(getFile(message).getAbsolutePath()); + } + + 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 void removeFiles(Conversation conversation) { + String prefix = mXmppConnectionService.getFilesDir().getAbsolutePath(); + String path = prefix + "/" + conversation.getAccount().getJid() + "/" + + conversation.getContactJid(); + File file = new File(path); + try { + this.deleteFile(file); + } catch (IOException e) { + Log.d(Config.LOGTAG, + "error deleting file: " + file.getAbsolutePath()); + } + } + + private void deleteFile(File f) throws IOException { + if (f.isDirectory()) { + for (File c : f.listFiles()) + deleteFile(c); + } + f.delete(); + } + + 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) { + if (isAvatarCached(avatar)) { + return true; + } + String filename = getAvatarPath(avatar.getFilename()); + File file = new File(filename + ".tmp"); + file.getParentFile().mkdirs(); + try { + file.createNewFile(); + FileOutputStream mFileOutputStream = new FileOutputStream(file); + MessageDigest digest = MessageDigest.getInstance("SHA-1"); + digest.reset(); + DigestOutputStream mDigestOutputStream = new DigestOutputStream( + mFileOutputStream, digest); + mDigestOutputStream.write(avatar.getImageAsBytes()); + mDigestOutputStream.flush(); + mDigestOutputStream.close(); + avatar.size = file.length(); + String sha1sum = CryptoHelper.bytesToHex(digest.digest()); + if (sha1sum.equals(avatar.sha1sum)) { + file.renameTo(new File(filename)); + return true; + } 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; + } + } + + 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) { + try { + BitmapFactory.Options options = new BitmapFactory.Options(); + options.inSampleSize = calcSampleSize(image, size); + InputStream 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; + } + } + + public Bitmap cropCenter(Uri image, int newHeight, int newWidth) { + try { + BitmapFactory.Options options = new BitmapFactory.Options(); + options.inSampleSize = calcSampleSize(image, + Math.max(newHeight, newWidth)); + InputStream is = mXmppConnectionService.getContentResolver() + .openInputStream(image); + Bitmap source = BitmapFactory.decodeStream(is, null, options); + + 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, + source.getConfig()); + Canvas canvas = new Canvas(dest); + canvas.drawBitmap(source, null, targetRect, null); + + return dest; + } catch (FileNotFoundException e) { + return null; + } + + } + + 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, input.getConfig()); + 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 class ImageCopyException extends Exception { + private static final long serialVersionUID = -1010013599132881427L; + private int resId; + + public ImageCopyException(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(); + } +} -- cgit v1.2.3