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-rw-r--r--src/eu/siacs/conversations/persistance/FileBackend.java105
1 files changed, 104 insertions, 1 deletions
diff --git a/src/eu/siacs/conversations/persistance/FileBackend.java b/src/eu/siacs/conversations/persistance/FileBackend.java
index 1ee68a276..8895a2c85 100644
--- a/src/eu/siacs/conversations/persistance/FileBackend.java
+++ b/src/eu/siacs/conversations/persistance/FileBackend.java
@@ -1,5 +1,7 @@
package eu.siacs.conversations.persistance;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
@@ -7,19 +9,28 @@ 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 android.content.Context;
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.util.Base64;
+import android.util.Base64OutputStream;
import android.util.Log;
import android.util.LruCache;
import eu.siacs.conversations.R;
import eu.siacs.conversations.entities.Conversation;
import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.xmpp.jingle.JingleFile;
+import eu.siacs.conversations.xmpp.pep.Avatar;
public class FileBackend {
@@ -215,10 +226,102 @@ public class FileBackend {
public File getIncomingFile() {
return new File(context.getFilesDir().getAbsolutePath() + "/incoming");
}
-
+
public Uri getIncomingUri() {
return Uri.parse(context.getFilesDir().getAbsolutePath() + "/incoming");
}
+
+ public Avatar getPepAvatar(Uri image, int size, Bitmap.CompressFormat format) {
+ try {
+ Avatar avatar = new Avatar();
+ Bitmap bm = cropCenterSquare(image, size);
+ ByteArrayOutputStream mByteArrayOutputStream = new ByteArrayOutputStream();
+ Base64OutputStream mBase64OutputSttream = new Base64OutputStream(mByteArrayOutputStream, Base64.DEFAULT);
+ MessageDigest digest = MessageDigest.getInstance("SHA-1");
+ DigestOutputStream mDigestOutputStream = new DigestOutputStream(mBase64OutputSttream, digest);
+ bm.compress(format, 75, mDigestOutputStream);
+ avatar.sha1sum = CryptoHelper.bytesToHex(digest.digest());
+ avatar.image = new String(mByteArrayOutputStream.toByteArray());
+ return avatar;
+ } catch (NoSuchAlgorithmException e) {
+ return null;
+ }
+ }
+
+ public void save(Avatar avatar) {
+ String path = context.getFilesDir().getAbsolutePath() + "/avatars/";
+ File file = new File(path+"/"+avatar.getFilename());
+ file.getParentFile().mkdirs();
+ Log.d("xmppService",file.getAbsolutePath());
+ try {
+ file.createNewFile();
+ FileOutputStream mFileOutputStream = new FileOutputStream(file);
+ MessageDigest digest = MessageDigest.getInstance("SHA-1");
+ DigestOutputStream mDigestOutputStream = new DigestOutputStream(mFileOutputStream, digest);
+ mDigestOutputStream.write(avatar.getImageAsBytes());
+ mDigestOutputStream.flush();
+ mDigestOutputStream.close();
+ Log.d("xmppService","sha1sum after write: "+CryptoHelper.bytesToHex(digest.digest()));
+ } catch (FileNotFoundException e) {
+
+ } catch (IOException e) {
+ Log.d("xmppService",e.getMessage());
+ } catch (NoSuchAlgorithmException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ }
+
+ public Bitmap cropCenterSquare(Uri image, int size) {
+ try {
+ BitmapFactory.Options options = new BitmapFactory.Options();
+ options.inSampleSize = calcSampleSize(image, size);
+ InputStream is = context.getContentResolver()
+ .openInputStream(image);
+ Bitmap input = BitmapFactory.decodeStream(is, null, options);
+ 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;
+ } catch (FileNotFoundException e) {
+ return null;
+ }
+ }
+
+ private int calcSampleSize(Uri image, int size)
+ throws FileNotFoundException {
+ BitmapFactory.Options options = new BitmapFactory.Options();
+ options.inJustDecodeBounds = true;
+ BitmapFactory.decodeStream(context.getContentResolver()
+ .openInputStream(image), null, options);
+ 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 class ImageCopyException extends Exception {
private static final long serialVersionUID = -1010013599132881427L;