From e0653c03713efe0e4f2f5438b31d1417b059761b Mon Sep 17 00:00:00 2001
From: Daniel Gultsch <daniel@gultsch.de>
Date: Thu, 7 May 2015 14:19:51 +0200
Subject: [PATCH] fixed encrypted ibb file transfer which was broken with ART.
 fixes #1172

---
 .../xmpp/jingle/JingleConnection.java         |  2 +-
 .../xmpp/jingle/JingleInbandTransport.java    | 59 +++++++++++--------
 2 files changed, 34 insertions(+), 27 deletions(-)

diff --git a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleConnection.java b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleConnection.java
index e448f9477..4847d5f12 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleConnection.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleConnection.java
@@ -99,7 +99,7 @@ public class JingleConnection implements Downloadable {
 					file.delete();
 				}
 			}
-			Log.d(Config.LOGTAG,"sucessfully transmitted file:" + file.getAbsolutePath());
+			Log.d(Config.LOGTAG,"successfully transmitted file:" + file.getAbsolutePath()+" ("+file.getSha1Sum()+")");
 			if (message.getEncryption() != Message.ENCRYPTION_PGP) {
 				Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
 				intent.setData(Uri.fromFile(file));
diff --git a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
index 9866af03d..4e039ad85 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/jingle/JingleInbandTransport.java
@@ -8,7 +8,9 @@ import java.security.NoSuchAlgorithmException;
 import java.util.Arrays;
 
 import android.util.Base64;
+import android.util.Log;
 
+import eu.siacs.conversations.Config;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.persistance.FileBackend;
@@ -110,7 +112,11 @@ public class JingleInbandTransport extends JingleTransport {
 		this.onFileTransmissionStatusChanged = callback;
 		this.file = file;
 		try {
-			this.remainingSize = this.file.getSize();
+			if (this.file.getKey() != null) {
+				this.remainingSize = (this.file.getSize() / 16 + 1) * 16;
+			} else {
+				this.remainingSize = this.file.getSize();
+			}
 			this.fileSize = this.remainingSize;
 			this.digest = MessageDigest.getInstance("SHA-1");
 			this.digest.reset();
@@ -150,29 +156,33 @@ public class JingleInbandTransport extends JingleTransport {
 		byte[] buffer = new byte[this.bufferSize];
 		try {
 			int count = fileInputStream.read(buffer);
-			if (count == -1) {
-				file.setSha1Sum(CryptoHelper.bytesToHex(digest.digest()));
-				fileInputStream.close();
-				this.onFileTransmissionStatusChanged.onFileTransmitted(file);
-			} else {
-				this.remainingSize -= count;
-				this.digest.update(buffer);
-				String base64 = Base64.encodeToString(buffer, Base64.NO_WRAP);
-				IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
-				iq.setTo(this.counterpart);
-				Element data = iq.addChild("data",
-						"http://jabber.org/protocol/ibb");
-				data.setAttribute("seq", Integer.toString(this.seq));
-				data.setAttribute("block-size",
-						Integer.toString(this.blockSize));
-				data.setAttribute("sid", this.sessionId);
-				data.setContent(base64);
-				this.account.getXmppConnection().sendIqPacket(iq,
-						this.onAckReceived);
-				this.seq++;
+			this.remainingSize -= count;
+			if (count != buffer.length && count != -1) {
+				int rem = fileInputStream.read(buffer,count,buffer.length-count);
+				if (rem > 0) {
+					count += rem;
+				}
+			}
+			this.digest.update(buffer,0,count);
+			String base64 = Base64.encodeToString(buffer,0,count, Base64.NO_WRAP);
+			IqPacket iq = new IqPacket(IqPacket.TYPE.SET);
+			iq.setTo(this.counterpart);
+			Element data = iq.addChild("data", "http://jabber.org/protocol/ibb");
+			data.setAttribute("seq", Integer.toString(this.seq));
+			data.setAttribute("block-size", Integer.toString(this.blockSize));
+			data.setAttribute("sid", this.sessionId);
+			data.setContent(base64);
+			this.account.getXmppConnection().sendIqPacket(iq, this.onAckReceived);
+			this.seq++;
+			if (this.remainingSize > 0) {
 				connection.updateProgress((int) ((((double) (this.fileSize - this.remainingSize)) / this.fileSize) * 100));
+			} else {
+				file.setSha1Sum(CryptoHelper.bytesToHex(digest.digest()));
+				this.onFileTransmissionStatusChanged.onFileTransmitted(file);
+				fileInputStream.close();
 			}
 		} catch (IOException e) {
+			Log.d(Config.LOGTAG,e.getMessage());
 			FileBackend.close(fileInputStream);
 			this.onFileTransmissionStatusChanged.onFileTransferAborted();
 		}
@@ -182,14 +192,10 @@ public class JingleInbandTransport extends JingleTransport {
 		try {
 			byte[] buffer = Base64.decode(data, Base64.NO_WRAP);
 			if (this.remainingSize < buffer.length) {
-				buffer = Arrays
-						.copyOfRange(buffer, 0, (int) this.remainingSize);
+				buffer = Arrays.copyOfRange(buffer, 0, (int) this.remainingSize);
 			}
 			this.remainingSize -= buffer.length;
-
-
 			this.fileOutputStream.write(buffer);
-
 			this.digest.update(buffer);
 			if (this.remainingSize <= 0) {
 				file.setSha1Sum(CryptoHelper.bytesToHex(digest.digest()));
@@ -200,6 +206,7 @@ public class JingleInbandTransport extends JingleTransport {
 				connection.updateProgress((int) ((((double) (this.fileSize - this.remainingSize)) / this.fileSize) * 100));
 			}
 		} catch (IOException e) {
+			Log.d(Config.LOGTAG,e.getMessage());
 			FileBackend.close(fileOutputStream);
 			this.onFileTransmissionStatusChanged.onFileTransferAborted();
 		}