From 27d5966ac356fd10365d848332b127b0b8f417da Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel.gultsch@rwth-aachen.de>
Date: Sun, 13 Apr 2014 11:32:45 +0200
Subject: more efficant way of calculating the sha1 sum. closing connections

---
 .../conversations/persistance/FileBackend.java     | 55 ++--------------------
 1 file changed, 5 insertions(+), 50 deletions(-)

(limited to 'src/eu/siacs/conversations/persistance/FileBackend.java')

diff --git a/src/eu/siacs/conversations/persistance/FileBackend.java b/src/eu/siacs/conversations/persistance/FileBackend.java
index dbbf0a10..1cf1b26c 100644
--- a/src/eu/siacs/conversations/persistance/FileBackend.java
+++ b/src/eu/siacs/conversations/persistance/FileBackend.java
@@ -1,15 +1,10 @@
 package eu.siacs.conversations.persistance;
 
-import java.io.BufferedInputStream;
-import java.io.File;
-import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
 
 import android.content.Context;
 import android.graphics.Bitmap;
@@ -20,7 +15,7 @@ import android.util.LruCache;
 
 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;
 
 public class FileBackend {
 
@@ -43,13 +38,13 @@ public class FileBackend {
 
 	}
 
-	public File getImageFile(Message message) {
+	public JingleFile getImageFile(Message message) {
 		Conversation conversation = message.getConversation();
 		String prefix = context.getFilesDir().getAbsolutePath();
 		String path = prefix + "/" + conversation.getAccount().getJid() + "/"
 				+ conversation.getContactJid();
 		String filename = message.getUuid() + ".webp";
-		return new File(path + "/" + filename);
+		return new JingleFile(path + "/" + filename);
 	}
 	
 	private Bitmap resize(Bitmap originalBitmap, int size) {
@@ -73,11 +68,11 @@ public class FileBackend {
 		}
 	}
 
-	public File copyImageToPrivateStorage(Message message, Uri image) {
+	public JingleFile copyImageToPrivateStorage(Message message, Uri image) {
 		try {
 			InputStream is = context.getContentResolver()
 					.openInputStream(image);
-			File file = getImageFile(message);
+			JingleFile file = getImageFile(message);
 			file.getParentFile().mkdirs();
 			file.createNewFile();
 			OutputStream os = new FileOutputStream(file);
@@ -89,7 +84,6 @@ public class FileBackend {
 				Log.d("xmppService", "couldnt compress");
 			}
 			os.close();
-			message.setBody(this.createSha1(file));
 			return file;
 		} catch (FileNotFoundException e) {
 			// TODO Auto-generated catch block
@@ -118,43 +112,4 @@ public class FileBackend {
 		}
 		return thumbnail;
 	}
-	
-	private String createSha1(final File file) {
-		InputStream fis = null;
-		try {
-			MessageDigest digest = MessageDigest.getInstance("SHA-1");
-			fis = new FileInputStream(file);
-		    int n = 0;
-		    byte[] buffer = new byte[8192];
-		    while (n != -1) {
-		        n = fis.read(buffer);
-		        if (n > 0) {
-		            digest.update(buffer, 0, n);
-		        }
-		    }
-		    fis.close();
-		    return CryptoHelper.bytesToHex(digest.digest());
-		} catch (NoSuchAlgorithmException e) {
-			return null;
-		} catch (FileNotFoundException e) {
-			if (fis!=null) {
-				try {
-					fis.close();
-					return null;
-				} catch (IOException e1) {
-					return null;
-				}
-			}
-		} catch (IOException e) {
-			if (fis!=null) {
-				try {
-					fis.close();
-					return null;
-				} catch (IOException e1) {
-					return null;
-				}
-			}
-		}
-		return null;
-	}
 }
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