Merge tag '2.5.8' into develop

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## Version 2.5.8
+* fixed connection issues over Tor
+* P2P file transfer (Jingle) now offers direct candidates
+* Support XEP-0396: Jingle Encrypted Transports - OMEMO
+
 ### Version 2.5.7
 * fixed crash when scanning QR codes on Android 6 and lower
 * when sharing a message from and to Conversations insert it as quote

build.gradle

@@ -83,8 +83,8 @@ android {
     defaultConfig {
         minSdkVersion 16
         targetSdkVersion 25
-        versionCode 337
+        versionCode 338
-        versionName "2.5.7"
+        versionName "2.5.8"
         archivesBaseName += "-$versionName"
         applicationId "eu.sum7.conversations"
         resValue "string", "applicationId", applicationId

src/main/java/eu/siacs/conversations/Config.java

@@ -101,6 +101,7 @@ public final class Config {
 
 
     public static final boolean DISABLE_PROXY_LOOKUP = false; //useful to debug ibb
+    public static final boolean USE_DIRECT_JINGLE_CANDIDATES = true;
     public static final boolean DISABLE_HTTP_UPLOAD = false;
     public static final boolean EXTENDED_SM_LOGGING = false; // log stanza counts
     public static final boolean BACKGROUND_STANZA_LOGGING = false; //log all stanzas that were received while the app is in background

src/main/java/eu/siacs/conversations/generator/AbstractGenerator.java

@@ -29,6 +29,8 @@ public abstract class AbstractGenerator {
 			Content.Version.FT_5.getNamespace(),
 			Namespace.JINGLE_TRANSPORTS_S5B,
 			Namespace.JINGLE_TRANSPORTS_IBB,
+			Namespace.JINGLE_ENCRYPTED_TRANSPORT,
+			Namespace.JINGLE_ENCRYPTED_TRANSPORT_OMEMO,
 			"http://jabber.org/protocol/muc",
 			"jabber:x:conference",
 			Namespace.OOB,

src/main/java/eu/siacs/conversations/persistance/FileBackend.java

@@ -39,6 +39,7 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.URL;
 import java.security.DigestOutputStream;
@@ -359,6 +360,15 @@ public class FileBackend {
         }
     }
 
+    public static void close(final ServerSocket socket) {
+        if (socket != null) {
+            try {
+                socket.close();
+            } catch (IOException e) {
+            }
+        }
+    }
+
     public static boolean weOwnFile(Context context, Uri uri) {
         if (uri == null || !ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
             return false;

src/main/java/eu/siacs/conversations/services/AbstractConnectionManager.java

@@ -26,6 +26,7 @@ import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.utils.Compatibility;
+import eu.siacs.conversations.utils.CryptoHelper;
 
 public class AbstractConnectionManager {
 

src/main/java/eu/siacs/conversations/services/NotificationService.java

@@ -11,7 +11,6 @@ import android.content.SharedPreferences;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
 import android.graphics.Typeface;
-import android.graphics.drawable.Icon;
 import android.media.AudioAttributes;
 import android.media.RingtoneManager;
 import android.net.Uri;
@@ -23,7 +22,6 @@ import android.support.v4.app.NotificationCompat;
 import android.support.v4.app.NotificationCompat.BigPictureStyle;
 import android.support.v4.app.NotificationCompat.Builder;
 import android.support.v4.app.NotificationManagerCompat;
-import android.support.v4.app.NotificationCompat.CarExtender.UnreadConversation;
 import android.support.v4.app.Person;
 import android.support.v4.app.RemoteInput;
 import android.support.v4.content.ContextCompat;
@@ -32,7 +30,6 @@ import android.text.SpannableString;
 import android.text.style.StyleSpan;
 import android.util.DisplayMetrics;
 import android.util.Log;
-import android.util.Pair;
 
 import java.io.File;
 import java.io.IOException;
@@ -64,7 +61,6 @@ import eu.siacs.conversations.utils.Compatibility;
 import eu.siacs.conversations.utils.GeoHelper;
 import eu.siacs.conversations.utils.UIHelper;
 import eu.siacs.conversations.xmpp.XmppConnection;
-import rocks.xmpp.addr.Jid;
 
 public class NotificationService {
 
@@ -469,10 +465,7 @@ public class NotificationService {
     private Builder buildMultipleConversation(final boolean notify, final boolean quietHours) {
         final Builder mBuilder = new NotificationCompat.Builder(mXmppConnectionService, quietHours ? "quiet_hours" : (notify ? "messages" : "silent_messages"));
         final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
-        style.setBigContentTitle(notifications.size()
+        style.setBigContentTitle(mXmppConnectionService.getString(R.string.x_unread_conversations,notifications.size()));
-                + " "
-                + mXmppConnectionService
-                .getString(R.string.unread_conversations));
         final StringBuilder names = new StringBuilder();
         Conversation conversation = null;
         for (final ArrayList<Message> messages : notifications.values()) {
@@ -497,10 +490,8 @@ public class NotificationService {
         if (names.length() >= 2) {
             names.delete(names.length() - 2, names.length());
         }
-        mBuilder.setContentTitle(notifications.size()
+        mBuilder.setContentTitle(mXmppConnectionService.getString(R.string.x_unread_conversations, notifications.size()));
-                + " "
+        mBuilder.setTicker(mXmppConnectionService.getString(R.string.x_unread_conversations, notifications.size()));
-                + mXmppConnectionService
-                .getString(R.string.unread_conversations));
         mBuilder.setContentText(names.toString());
         mBuilder.setStyle(style);
         if (conversation != null) {
@@ -627,8 +618,11 @@ public class NotificationService {
                 CharSequence text = getMergedBodies(tmp);
                 bigPictureStyle.setSummaryText(text);
                 builder.setContentText(text);
+                builder.setTicker(text);
             } else {
-                builder.setContentText(UIHelper.getFileDescriptionString(mXmppConnectionService, message));
+                final String description = UIHelper.getFileDescriptionString(mXmppConnectionService, message);
+                builder.setContentText(description);
+                builder.setTicker(description);
             }
             builder.setStyle(bigPictureStyle);
         } catch (final IOException e) {
@@ -685,7 +679,9 @@ public class NotificationService {
         } else {
             if (messages.get(0).getConversation().getMode() == Conversation.MODE_SINGLE) {
                 builder.setStyle(new NotificationCompat.BigTextStyle().bigText(getMergedBodies(messages)));
-                builder.setContentText(UIHelper.getMessagePreview(mXmppConnectionService, messages.get(messages.size()-1)).first);
+                final CharSequence preview = UIHelper.getMessagePreview(mXmppConnectionService, messages.get(messages.size()-1)).first;
+                builder.setContentText(preview);
+                builder.setTicker(preview);
                 builder.setNumber(messages.size());
             } else {
                 final NotificationCompat.InboxStyle style = new NotificationCompat.InboxStyle();
@@ -703,8 +699,11 @@ public class NotificationService {
                     styledString = new SpannableString(name + ": " + messages.get(0).getBody());
                     styledString.setSpan(new StyleSpan(Typeface.BOLD), 0, name.length(), 0);
                     builder.setContentText(styledString);
+                    builder.setTicker(styledString);
                 } else {
-                    builder.setContentText(mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages, count, count));
+                    final String text = mXmppConnectionService.getResources().getQuantityString(R.plurals.x_messages, count, count);
+                    builder.setContentText(text);
+                    builder.setTicker(text);
                 }
             }
         }

src/main/java/eu/siacs/conversations/utils/Resolver.java

@@ -66,12 +66,16 @@ public class Resolver {
         Result result = new Result();
         result.hostname = DNSName.from(hostname);
         result.port = port;
-        result.directTls = port == 443 || port == 5223;
+        result.directTls = useDirectTls(port);
         result.authenticated = true;
         return Collections.singletonList(result);
     }
 
 
+    public static boolean useDirectTls(final int port) {
+        return port == 443 || port == 5223;
+    }
+
     public static List<Result> resolve(String domain) {
         final List<Result> ipResults = fromIpAddress(domain);
         if (ipResults.size() > 0) {

src/main/java/eu/siacs/conversations/utils/SocksSocketFactory.java

@@ -20,6 +20,9 @@ public class SocksSocketFactory {
 		proxyOs.write(new byte[]{0x05, 0x01, 0x00});
 		byte[] response = new byte[2];
 		proxyIs.read(response);
+		if (response[0] != 0x05 || response[1] != 0x00) {
+			throw new SocksConnectionException("Socks 5 handshake failed");
+		}
 		byte[] dest = destination.getBytes();
 		ByteBuffer request = ByteBuffer.allocate(7 + dest.length);
 		request.put(new byte[]{0x05, 0x01, 0x00, 0x03});
@@ -30,10 +33,25 @@ public class SocksSocketFactory {
 		response = new byte[7 + dest.length];
 		proxyIs.read(response);
 		if (response[1] != 0x00) {
-			throw new SocksConnectionException();
+			if (response[1] == 0x04) {
+				throw new HostNotFoundException("Host unreachable");
+			}
+			if (response[1] == 0x05) {
+				throw new HostNotFoundException("Connection refused");
+			}
+			throw new SocksConnectionException("Unable to connect to destination "+(int) (response[1]));
 		}
 	}
 
+	public static boolean contains(byte needle, byte[] haystack) {
+		for(byte hay : haystack) {
+			if (hay == needle) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	public static Socket createSocket(InetSocketAddress address, String destination, int port) throws IOException {
 		Socket socket = new Socket();
 		try {
@@ -49,11 +67,19 @@ public class SocksSocketFactory {
 		return createSocket(new InetSocketAddress(InetAddress.getByAddress(LOCALHOST), 9050), destination, port);
 	}
 
-	static class SocksConnectionException extends IOException {
+	private static class SocksConnectionException extends IOException {
-
+		SocksConnectionException(String message) {
+			super(message);
+		}
 	}
 
 	public static class SocksProxyNotFoundException extends IOException {
 
 	}
+
+	public static class HostNotFoundException extends SocksConnectionException {
+		HostNotFoundException(String message) {
+			super(message);
+		}
+	}
 }

src/main/java/eu/siacs/conversations/xml/Namespace.java

@@ -30,4 +30,6 @@ public final class Namespace {
 	public static final String PING = "urn:xmpp:ping";
 	public static final String PUSH = "urn:xmpp:push:0";
 	public static final String COMMANDS = "http://jabber.org/protocol/commands";
+	public static final String JINGLE_ENCRYPTED_TRANSPORT = "urn:xmpp:jingle:jet:0";
+	public static final String JINGLE_ENCRYPTED_TRANSPORT_OMEMO = "urn:xmpp:jingle:jet-omemo:0";
 }

src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java

@@ -267,8 +267,18 @@ public class XmppConnection implements Runnable {
                     destination = account.getHostname();
                     this.verifiedHostname = destination;
                 }
-                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": connect to " + destination + " via Tor");
+
-                localSocket = SocksSocketFactory.createSocketOverTor(destination, account.getPort());
+                final int port = account.getPort();
+                final boolean directTls = Resolver.useDirectTls(port);
+
+                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": connect to " + destination + " via Tor. directTls="+directTls);
+                localSocket = SocksSocketFactory.createSocketOverTor(destination, port);
+
+                if (directTls) {
+                    localSocket = upgradeSocketToTls(localSocket);
+                    features.encryptionEnabled = true;
+                }
+
                 try {
                     startXmpp(localSocket);
                 } catch (InterruptedException e) {
@@ -310,29 +320,13 @@ public class XmppConnection implements Runnable {
                                 + ": using values from resolver "
                                 + result.getHostname().toString() + ":" + result.getPort() + " tls: " + features.encryptionEnabled);
 
-                        if (!features.encryptionEnabled) {
+                        localSocket = new Socket();
-                            localSocket = new Socket();
+                        localSocket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
-                            localSocket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
-                        } else {
-                            final TlsFactoryVerifier tlsFactoryVerifier = getTlsFactoryVerifier();
-                            localSocket = tlsFactoryVerifier.factory.createSocket();
 
-                            if (localSocket == null) {
+                        if (features.encryptionEnabled) {
-                                throw new IOException("could not initialize ssl socket");
+                            localSocket = upgradeSocketToTls(localSocket);
-                            }
-
-                            SSLSocketHelper.setSecurity((SSLSocket) localSocket);
-                            SSLSocketHelper.setHostname((SSLSocket) localSocket, account.getServer());
-                            SSLSocketHelper.setApplicationProtocol((SSLSocket) localSocket, "xmpp-client");
-
-                            localSocket.connect(addr, Config.SOCKET_TIMEOUT * 1000);
-
-                            if (!tlsFactoryVerifier.verifier.verify(account.getServer(), verifiedHostname, ((SSLSocket) localSocket).getSession())) {
-                                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS certificate verification failed");
-                                FileBackend.close(localSocket);
-                                throw new StateChangingException(Account.State.TLS_ERROR);
-                            }
                         }
+
                         localSocket.setSoTimeout(Config.SOCKET_TIMEOUT * 1000);
                         if (startXmpp(localSocket)) {
                             localSocket.setSoTimeout(0); //reset to 0; once the connection is established we don’t want this
@@ -363,6 +357,8 @@ public class XmppConnection implements Runnable {
             this.changeStatus(e.state);
         } catch (final UnknownHostException | ConnectException e) {
             this.changeStatus(Account.State.SERVER_NOT_FOUND);
+        } catch (final SocksSocketFactory.HostNotFoundException e) {
+            this.changeStatus(Account.State.SERVER_NOT_FOUND);
         } catch (final SocksSocketFactory.SocksProxyNotFoundException e) {
             this.changeStatus(Account.State.TOR_NOT_AVAILABLE);
         } catch (final IOException | XmlPullParserException  e) {
@@ -775,46 +771,41 @@ public class XmppConnection implements Runnable {
 
     private void switchOverToTls() throws XmlPullParserException, IOException {
         tagReader.readTag();
+        final Socket socket = this.socket;
+        final SSLSocket sslSocket = upgradeSocketToTls(socket);
+        tagReader.setInputStream(sslSocket.getInputStream());
+        tagWriter.setOutputStream(sslSocket.getOutputStream());
+        sendStartStream();
+        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS connection established");
+        features.encryptionEnabled = true;
+        final Tag tag = tagReader.readTag();
+        if (tag != null && tag.isStart("stream")) {
+            SSLSocketHelper.log(account, sslSocket);
+            processStream();
+        } else {
+            throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
+        }
+        sslSocket.close();
+    }
+
+    private SSLSocket upgradeSocketToTls(final Socket socket) throws IOException {
+        final TlsFactoryVerifier tlsFactoryVerifier;
         try {
-            final TlsFactoryVerifier tlsFactoryVerifier = getTlsFactoryVerifier();
+            tlsFactoryVerifier = getTlsFactoryVerifier();
-            final InetAddress address = socket == null ? null : socket.getInetAddress();
+        } catch (final NoSuchAlgorithmException | KeyManagementException e) {
-
-            if (address == null) {
-                throw new IOException("could not setup ssl");
-            }
-
-            final SSLSocket sslSocket = (SSLSocket) tlsFactoryVerifier.factory.createSocket(socket, address.getHostAddress(), socket.getPort(), true);
-
-
-            if (sslSocket == null) {
-                throw new IOException("could not initialize ssl socket");
-            }
-
-            SSLSocketHelper.setSecurity(sslSocket);
-            SSLSocketHelper.setHostname(sslSocket, account.getServer());
-            SSLSocketHelper.setApplicationProtocol(sslSocket, "xmpp-client");
-
-            if (!tlsFactoryVerifier.verifier.verify(account.getServer(), this.verifiedHostname, sslSocket.getSession())) {
-                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS certificate verification failed");
-                throw new StateChangingException(Account.State.TLS_ERROR);
-            }
-            tagReader.setInputStream(sslSocket.getInputStream());
-            tagWriter.setOutputStream(sslSocket.getOutputStream());
-            sendStartStream();
-            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS connection established");
-            features.encryptionEnabled = true;
-            final Tag tag = tagReader.readTag();
-            if (tag != null && tag.isStart("stream")) {
-                SSLSocketHelper.log(account, sslSocket);
-                processStream();
-            } else {
-                throw new StateChangingException(Account.State.STREAM_OPENING_ERROR);
-            }
-            sslSocket.close();
-        } catch (final NoSuchAlgorithmException | KeyManagementException e1) {
-            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS certificate verification failed");
             throw new StateChangingException(Account.State.TLS_ERROR);
         }
+        final InetAddress address = socket.getInetAddress();
+        final SSLSocket sslSocket = (SSLSocket) tlsFactoryVerifier.factory.createSocket(socket, address.getHostAddress(), socket.getPort(), true);
+        SSLSocketHelper.setSecurity(sslSocket);
+        SSLSocketHelper.setHostname(sslSocket, account.getServer());
+        SSLSocketHelper.setApplicationProtocol(sslSocket, "xmpp-client");
+        if (!tlsFactoryVerifier.verifier.verify(account.getServer(), this.verifiedHostname, sslSocket.getSession())) {
+            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": TLS certificate verification failed");
+            FileBackend.close(sslSocket);
+            throw new StateChangingException(Account.State.TLS_ERROR);
+        }
+        return sslSocket;
     }
 
     private void processStreamFeatures(final Tag currentTag) throws XmlPullParserException, IOException {

src/main/java/eu/siacs/conversations/xmpp/jingle/DirectConnectionUtils.java

@@ -0,0 +1,64 @@
+package eu.siacs.conversations.xmpp.jingle;
+
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.net.UnknownHostException;
+import java.security.SecureRandom;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.UUID;
+
+import rocks.xmpp.addr.Jid;
+
+public class DirectConnectionUtils {
+
+    private static List<InetAddress> getLocalAddresses() {
+        final List<InetAddress> addresses = new ArrayList<>();
+        final Enumeration<NetworkInterface> interfaces;
+        try {
+            interfaces = NetworkInterface.getNetworkInterfaces();
+        } catch (SocketException e) {
+            return addresses;
+        }
+        while (interfaces.hasMoreElements()) {
+            NetworkInterface networkInterface = interfaces.nextElement();
+            final Enumeration<InetAddress> inetAddressEnumeration = networkInterface.getInetAddresses();
+            while (inetAddressEnumeration.hasMoreElements()) {
+                final InetAddress inetAddress = inetAddressEnumeration.nextElement();
+                if (inetAddress.isLoopbackAddress() || inetAddress.isLinkLocalAddress()) {
+                    continue;
+                }
+                if (inetAddress instanceof Inet6Address) {
+                    //let's get rid of scope
+                    try {
+                        addresses.add(Inet6Address.getByAddress(inetAddress.getAddress()));
+                    } catch (UnknownHostException e) {
+                        //ignored
+                    }
+                } else {
+                    addresses.add(inetAddress);
+                }
+            }
+        }
+        return addresses;
+    }
+
+    public static List<JingleCandidate> getLocalCandidates(Jid jid) {
+        SecureRandom random = new SecureRandom();
+        ArrayList<JingleCandidate> candidates = new ArrayList<>();
+        for (InetAddress inetAddress : getLocalAddresses()) {
+            final JingleCandidate candidate = new JingleCandidate(UUID.randomUUID().toString(), true);
+            candidate.setHost(inetAddress.getHostAddress());
+            candidate.setPort(random.nextInt(60000) + 1024);
+            candidate.setType(JingleCandidate.TYPE_DIRECT);
+            candidate.setJid(jid);
+            candidate.setPriority(8257536 + candidates.size());
+            candidates.add(candidate);
+        }
+        return candidates;
+    }
+
+}

src/main/java/eu/siacs/conversations/xmpp/jingle/JingleCandidate.java

@@ -110,15 +110,12 @@ public class JingleCandidate {
 	}
 
 	public static JingleCandidate parse(Element candidate) {
-		JingleCandidate parsedCandidate = new JingleCandidate(
+		JingleCandidate parsedCandidate = new JingleCandidate(candidate.getAttribute("cid"), false);
-				candidate.getAttribute("cid"), false);
 		parsedCandidate.setHost(candidate.getAttribute("host"));
 		parsedCandidate.setJid(InvalidJid.getNullForInvalid(candidate.getAttributeAsJid("jid")));
 		parsedCandidate.setType(candidate.getAttribute("type"));
-		parsedCandidate.setPriority(Integer.parseInt(candidate
+		parsedCandidate.setPriority(Integer.parseInt(candidate.getAttribute("priority")));
-				.getAttribute("priority")));
+		parsedCandidate.setPort(Integer.parseInt(candidate.getAttribute("port")));
-		parsedCandidate
-				.setPort(Integer.parseInt(candidate.getAttribute("port")));
 		return parsedCandidate;
 	}
 
@@ -127,7 +124,9 @@ public class JingleCandidate {
 		element.setAttribute("cid", this.getCid());
 		element.setAttribute("host", this.getHost());
 		element.setAttribute("port", Integer.toString(this.getPort()));
-		element.setAttribute("jid", this.getJid().toString());
+		if (jid != null) {
+			element.setAttribute("jid", jid.toEscapedString());
+		}
 		element.setAttribute("priority", Integer.toString(this.getPriority()));
 		if (this.getType() == TYPE_DIRECT) {
 			element.setAttribute("type", "direct");

src/main/java/eu/siacs/conversations/xmpp/jingle/JingleConnection.java

@@ -43,6 +43,8 @@ import rocks.xmpp.addr.Jid;
 
 public class JingleConnection implements Transferable {
 
+    private static final String JET_OMEMO_CIPHER = "urn:xmpp:ciphers:aes-128-gcm-nopadding";
+
     private static final int JINGLE_STATUS_INITIATED = 0;
     private static final int JINGLE_STATUS_ACCEPTED = 1;
     private static final int JINGLE_STATUS_FINISHED = 4;
@@ -72,6 +74,7 @@ public class JingleConnection implements Transferable {
     private String contentName;
     private String contentCreator;
     private Transport initialTransport;
+    private boolean remoteSupportsOmemoJet;
 
     private int mProgress = 0;
 
@@ -171,7 +174,10 @@ public class JingleConnection implements Transferable {
 
         @Override
         public void failed() {
-            Log.d(Config.LOGTAG, "proxy activation failed");
+            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": proxy activation failed");
+            if (initiating()) {
+                sendFallbackToIbb();
+            }
         }
     };
 
@@ -292,8 +298,10 @@ public class JingleConnection implements Transferable {
         this.contentName = this.mJingleConnectionManager.nextRandomId();
         this.message = message;
         this.account = message.getConversation().getAccount();
-        upgradeNamespace();
+        final List<String> remoteFeatures = getRemoteFeatures();
-        this.initialTransport = getRemoteFeatures().contains(Namespace.JINGLE_TRANSPORTS_S5B) ? Transport.SOCKS : Transport.IBB;
+        upgradeNamespace(remoteFeatures);
+        this.initialTransport = remoteFeatures.contains(Namespace.JINGLE_TRANSPORTS_S5B) ? Transport.SOCKS : Transport.IBB;
+        this.remoteSupportsOmemoJet = remoteFeatures.contains(Namespace.JINGLE_ENCRYPTED_TRANSPORT_OMEMO);
         this.message.setTransferable(this);
         this.mStatus = Transferable.STATUS_UPLOADING;
         this.initiator = this.account.getJid();
@@ -302,10 +310,9 @@ public class JingleConnection implements Transferable {
         this.transportId = this.mJingleConnectionManager.nextRandomId();
         if (this.initialTransport == Transport.IBB) {
             this.sendInitRequest();
-        } else if (this.candidates.size() > 0) {
-            this.sendInitRequest();
         } else {
-            this.mJingleConnectionManager.getPrimaryCandidate(account, (success, candidate) -> {
+            gatherAndConnectDirectCandidates();
+            this.mJingleConnectionManager.getPrimaryCandidate(account, initiating(), (success, candidate) -> {
                 if (success) {
                     final JingleSocks5Transport socksConnection = new JingleSocks5Transport(this, candidate);
                     connections.put(candidate.getCid(), socksConnection);
@@ -313,22 +320,20 @@ public class JingleConnection implements Transferable {
 
                         @Override
                         public void failed() {
-                            Log.d(Config.LOGTAG,
+                            Log.d(Config.LOGTAG, "connection to our own proxy65 candidate failed");
-                                    "connection to our own primary candidete failed");
                             sendInitRequest();
                         }
 
                         @Override
                         public void established() {
-                            Log.d(Config.LOGTAG,
+                            Log.d(Config.LOGTAG, "successfully connected to our own proxy65 candidate");
-                                    "successfully connected to our own primary candidate");
                             mergeCandidate(candidate);
                             sendInitRequest();
                         }
                     });
                     mergeCandidate(candidate);
                 } else {
-                    Log.d(Config.LOGTAG, "no primary candidate of our own was found");
+                    Log.d(Config.LOGTAG, "no proxy65 candidate of our own was found");
                     sendInitRequest();
                 }
             });
@@ -336,11 +341,28 @@ public class JingleConnection implements Transferable {
 
     }
 
-    private void upgradeNamespace() {
+    private void gatherAndConnectDirectCandidates() {
-        List<String> features = getRemoteFeatures();
+        final List<JingleCandidate> directCandidates;
-        if (features.contains(Content.Version.FT_5.getNamespace())) {
+        if (Config.USE_DIRECT_JINGLE_CANDIDATES) {
+            if (account.isOnion() || mXmppConnectionService.useTorToConnect()) {
+                directCandidates = Collections.emptyList();
+            } else {
+                directCandidates = DirectConnectionUtils.getLocalCandidates(account.getJid());
+            }
+        } else {
+            directCandidates = Collections.emptyList();
+        }
+        for (JingleCandidate directCandidate : directCandidates) {
+            final JingleSocks5Transport socksConnection = new JingleSocks5Transport(this, directCandidate);
+            connections.put(directCandidate.getCid(), socksConnection);
+            candidates.add(directCandidate);
+        }
+    }
+
+    private void upgradeNamespace(List<String> remoteFeatures) {
+        if (remoteFeatures.contains(Content.Version.FT_5.getNamespace())) {
             this.ftVersion = Content.Version.FT_5;
-        } else if (features.contains(Content.Version.FT_4.getNamespace())) {
+        } else if (remoteFeatures.contains(Content.Version.FT_4.getNamespace())) {
             this.ftVersion = Content.Version.FT_4;
         }
     }
@@ -408,8 +430,18 @@ public class JingleConnection implements Transferable {
         }
         this.fileOffer = content.getFileOffer(this.ftVersion);
 
+
         if (fileOffer != null) {
+            boolean remoteIsUsingJet = false;
             Element encrypted = fileOffer.findChild("encrypted", AxolotlService.PEP_PREFIX);
+            if (encrypted == null) {
+                final Element security = content.findChild("security", Namespace.JINGLE_ENCRYPTED_TRANSPORT);
+                if (security != null && AxolotlService.PEP_PREFIX.equals(security.getAttribute("type"))) {
+                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received jingle file offer with JET");
+                    encrypted = security.findChild("encrypted", AxolotlService.PEP_PREFIX);
+                    remoteIsUsingJet = true;
+                }
+            }
             if (encrypted != null) {
                 this.mXmppAxolotlMessage = XmppAxolotlMessage.fromElement(encrypted, packet.getFrom().asBareJid());
             }
@@ -450,7 +482,10 @@ public class JingleConnection implements Transferable {
                     }
                 }
                 message.resetFileParams();
-                this.file.setExpectedSize(size);
+                //legacy OMEMO encrypted file transfers reported the file size after encryption
+                //JET reports the plain text size. however lower levels of our receiving code still
+                //expect the cipher text size. so we just + 16 bytes (auth tag size) here
+                this.file.setExpectedSize(size + (remoteIsUsingJet ? 16 : 0));
                 if (mJingleConnectionManager.hasStoragePermission()
                         && size < this.mJingleConnectionManager.getAutoAcceptFileSize()
                         && mXmppConnectionService.isDataSaverDisabled()) {
@@ -499,8 +534,21 @@ public class JingleConnection implements Transferable {
             if (message.getEncryption() == Message.ENCRYPTION_AXOLOTL) {
                 this.file.setKey(mXmppAxolotlMessage.getInnerKey());
                 this.file.setIv(mXmppAxolotlMessage.getIV());
-                this.file.setExpectedSize(file.getSize() + 16);
+                //legacy OMEMO encrypted file transfer reported file size of the encrypted file
-                content.setFileOffer(this.file, false, this.ftVersion).addChild(mXmppAxolotlMessage.toElement());
+                //JET uses the file size of the plain text file. The difference is only 16 bytes (auth tag)
+                this.file.setExpectedSize(file.getSize() + (this.remoteSupportsOmemoJet ? 0 : 16));
+                final Element file = content.setFileOffer(this.file, false, this.ftVersion);
+                if (remoteSupportsOmemoJet) {
+                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": remote announced support for JET");
+                    final Element security = new Element("security", Namespace.JINGLE_ENCRYPTED_TRANSPORT);
+                    security.setAttribute("name", this.contentName);
+                    security.setAttribute("cipher", JET_OMEMO_CIPHER);
+                    security.setAttribute("type", AxolotlService.PEP_PREFIX);
+                    security.addChild(mXmppAxolotlMessage.toElement());
+                    content.addChild(security);
+                } else {
+                    file.addChild(mXmppAxolotlMessage.toElement());
+                }
             } else {
                 this.file.setExpectedSize(file.getSize());
                 content.setFileOffer(this.file, false, this.ftVersion);
@@ -564,7 +612,8 @@ public class JingleConnection implements Transferable {
     }
 
     private void sendAcceptSocks() {
-        this.mJingleConnectionManager.getPrimaryCandidate(this.account, (success, candidate) -> {
+        gatherAndConnectDirectCandidates();
+        this.mJingleConnectionManager.getPrimaryCandidate(this.account, initiating(), (success, candidate) -> {
             final JinglePacket packet = bootstrapPacket("session-accept");
             final Content content = new Content(contentCreator, contentName);
             content.setFileOffer(fileOffer, ftVersion);
@@ -576,7 +625,7 @@ public class JingleConnection implements Transferable {
 
                     @Override
                     public void failed() {
-                        Log.d(Config.LOGTAG, "connection to our own primary candidate failed");
+                        Log.d(Config.LOGTAG, "connection to our own proxy65 candidate failed");
                         content.socks5transport().setChildren(getCandidatesAsElements());
                         packet.setContent(content);
                         sendJinglePacket(packet);
@@ -585,7 +634,7 @@ public class JingleConnection implements Transferable {
 
                     @Override
                     public void established() {
-                        Log.d(Config.LOGTAG, "connected to primary candidate");
+                        Log.d(Config.LOGTAG, "connected to proxy65 candidate");
                         mergeCandidate(candidate);
                         content.socks5transport().setChildren(getCandidatesAsElements());
                         packet.setContent(content);
@@ -594,7 +643,7 @@ public class JingleConnection implements Transferable {
                     }
                 });
             } else {
-                Log.d(Config.LOGTAG, "did not find a primary candidate for ourself");
+                Log.d(Config.LOGTAG, "did not find a proxy65 candidate for ourselves");
                 content.socks5transport().setChildren(getCandidatesAsElements());
                 packet.setContent(content);
                 sendJinglePacket(packet);
@@ -635,7 +684,7 @@ public class JingleConnection implements Transferable {
 
     private boolean receiveAccept(JinglePacket packet) {
         if (this.mJingleStatus != JINGLE_STATUS_INITIATED) {
-            Log.d(Config.LOGTAG,account.getJid().asBareJid()+": received out of order session-accept");
+            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received out of order session-accept");
             return false;
         }
         this.mJingleStatus = JINGLE_STATUS_ACCEPTED;
@@ -654,7 +703,7 @@ public class JingleConnection implements Transferable {
                         this.ibbBlockSize = bs;
                     }
                 } catch (Exception e) {
-                    Log.d(Config.LOGTAG,account.getJid().asBareJid()+": unable to parse block size in session-accept");
+                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to parse block size in session-accept");
                 }
             }
             this.transport = new JingleInbandTransport(this, this.transportId, this.ibbBlockSize);
@@ -689,7 +738,7 @@ public class JingleConnection implements Transferable {
                 onProxyActivated.failed();
                 return true;
             } else if (content.socks5transport().hasChild("candidate-error")) {
-                Log.d(Config.LOGTAG, "received candidate error");
+                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": received candidate error");
                 this.receivedCandidate = true;
                 if (mJingleStatus == JINGLE_STATUS_ACCEPTED && this.sentCandidate) {
                     this.connect();
@@ -727,12 +776,14 @@ public class JingleConnection implements Transferable {
         final JingleSocks5Transport connection = chooseConnection();
         this.transport = connection;
         if (connection == null) {
-            Log.d(Config.LOGTAG, "could not find suitable candidate");
+            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": could not find suitable candidate");
             this.disconnectSocks5Connections();
             if (initiating()) {
                 this.sendFallbackToIbb();
             }
         } else {
+            final JingleCandidate candidate = connection.getCandidate();
+            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": elected candidate " + candidate.getHost() + ":" + candidate.getPort());
             this.mJingleStatus = JINGLE_STATUS_TRANSMITTING;
             if (connection.needsActivation()) {
                 if (connection.getCandidate().isOurs()) {
@@ -754,10 +805,12 @@ public class JingleConnection implements Transferable {
                             .setContent(this.getCounterPart().toString());
                     mXmppConnectionService.sendIqPacket(account, activation, (account, response) -> {
                         if (response.getType() != IqPacket.TYPE.RESULT) {
+                            Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": " + response.toString());
+                            sendProxyError();
                             onProxyActivated.failed();
                         } else {
-                            onProxyActivated.success();
                             sendProxyActivated(connection.getCandidate().getCid());
+                            onProxyActivated.success();
                         }
                     });
                 } else {
@@ -841,7 +894,7 @@ public class JingleConnection implements Transferable {
 
 
     private boolean receiveFallbackToIbb(JinglePacket packet) {
-        Log.d(Config.LOGTAG, "receiving fallback to ibb");
+        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": receiving fallback to ibb");
         final String receivedBlockSize = packet.getJingleContent().ibbTransport().getAttribute("block-size");
         if (receivedBlockSize != null) {
             try {
@@ -850,7 +903,7 @@ public class JingleConnection implements Transferable {
                     this.ibbBlockSize = bs;
                 }
             } catch (NumberFormatException e) {
-                Log.d(Config.LOGTAG,account.getJid().asBareJid()+": unable to parse block size in transport-replace");
+                Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to parse block size in transport-replace");
             }
         }
         this.transportId = packet.getJingleContent().getTransportId();
@@ -889,7 +942,7 @@ public class JingleConnection implements Transferable {
                         this.ibbBlockSize = bs;
                     }
                 } catch (NumberFormatException e) {
-                    Log.d(Config.LOGTAG, account.getJid().asBareJid()+": unable to parse block size in transport-accept");
+                    Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": unable to parse block size in transport-accept");
                 }
             }
             this.transport = new JingleInbandTransport(this, this.transportId, this.ibbBlockSize);
@@ -1029,14 +1082,23 @@ public class JingleConnection implements Transferable {
     }
 
     private void sendProxyActivated(String cid) {
-        JinglePacket packet = bootstrapPacket("transport-info");
+        final JinglePacket packet = bootstrapPacket("transport-info");
-        Content content = new Content(this.contentCreator, this.contentName);
+        final Content content = new Content(this.contentCreator, this.contentName);
         content.setTransportId(this.transportId);
         content.socks5transport().addChild("activated").setAttribute("cid", cid);
         packet.setContent(content);
         this.sendJinglePacket(packet);
     }
 
+    private void sendProxyError() {
+        final JinglePacket packet = bootstrapPacket("transport-info");
+        final Content content = new Content(this.contentCreator, this.contentName);
+        content.setTransportId(this.transportId);
+        content.socks5transport().addChild("proxy-error");
+        packet.setContent(content);
+        this.sendJinglePacket(packet);
+    }
+
     private void sendCandidateUsed(final String cid) {
         JinglePacket packet = bootstrapPacket("transport-info");
         Content content = new Content(this.contentCreator, this.contentName);
@@ -1051,7 +1113,7 @@ public class JingleConnection implements Transferable {
     }
 
     private void sendCandidateError() {
-        Log.d(Config.LOGTAG, "sending candidate error");
+        Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": sending candidate error");
         JinglePacket packet = bootstrapPacket("transport-info");
         Content content = new Content(this.contentCreator, this.contentName);
         content.setTransportId(this.transportId);
@@ -1087,6 +1149,7 @@ public class JingleConnection implements Transferable {
     }
 
     private void mergeCandidates(List<JingleCandidate> candidates) {
+        Collections.sort(candidates, (a, b) -> Integer.compare(b.getPriority(), a.getPriority()));
         for (JingleCandidate c : candidates) {
             mergeCandidate(c);
         }

src/main/java/eu/siacs/conversations/xmpp/jingle/JingleConnectionManager.java

@@ -81,8 +81,7 @@ public class JingleConnectionManager extends AbstractConnectionManager {
 		this.connections.remove(connection);
 	}
 
-	public void getPrimaryCandidate(Account account,
+	public void getPrimaryCandidate(final Account account, final boolean initiator, final OnPrimaryCandidateFound listener) {
-			final OnPrimaryCandidateFound listener) {
 		if (Config.DISABLE_PROXY_LOOKUP) {
 			listener.onPrimaryCandidateFound(false, null);
 			return;
@@ -107,7 +106,7 @@ public class JingleConnectionManager extends AbstractConnectionManager {
 								candidate.setPort(Integer.parseInt(port));
 								candidate.setType(JingleCandidate.TYPE_PROXY);
 								candidate.setJid(proxy);
-								candidate.setPriority(655360 + 65535);
+								candidate.setPriority(655360 + (initiator ? 10 : 20));
 								primaryCandidates.put(account.getJid().asBareJid(),candidate);
 								listener.onPrimaryCandidateFound(true,candidate);
 							} catch (final NumberFormatException e) {

src/main/java/eu/siacs/conversations/xmpp/jingle/JingleSocks5Transport.java

@@ -6,13 +6,17 @@ import android.util.Log;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.net.InetAddress;
 import java.net.InetSocketAddress;
+import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.SocketAddress;
+import java.nio.ByteBuffer;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 
 import eu.siacs.conversations.Config;
+import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.DownloadableFile;
 import eu.siacs.conversations.persistance.FileBackend;
 import eu.siacs.conversations.services.AbstractConnectionManager;
@@ -22,177 +26,268 @@ import eu.siacs.conversations.utils.WakeLockHelper;
 import eu.siacs.conversations.xmpp.jingle.stanzas.Content;
 
 public class JingleSocks5Transport extends JingleTransport {
-	private JingleCandidate candidate;
+    private final JingleCandidate candidate;
-	private JingleConnection connection;
+    private final JingleConnection connection;
-	private String destination;
+    private final String destination;
-	private OutputStream outputStream;
+    private OutputStream outputStream;
-	private InputStream inputStream;
+    private InputStream inputStream;
-	private boolean isEstablished = false;
+    private boolean isEstablished = false;
-	private boolean activated = false;
+    private boolean activated = false;
-	private Socket socket;
+    private ServerSocket serverSocket;
+    private Socket socket;
 
-	JingleSocks5Transport(JingleConnection jingleConnection, JingleCandidate candidate) {
+    JingleSocks5Transport(JingleConnection jingleConnection, JingleCandidate candidate) {
-		this.candidate = candidate;
+        final MessageDigest messageDigest;
-		this.connection = jingleConnection;
+        try {
-		try {
+            messageDigest = MessageDigest.getInstance("SHA-1");
-			MessageDigest mDigest = MessageDigest.getInstance("SHA-1");
+        } catch (NoSuchAlgorithmException e) {
-			StringBuilder destBuilder = new StringBuilder();
+            throw new AssertionError(e);
-			if (jingleConnection.getFtVersion() == Content.Version.FT_3) {
+        }
-				Log.d(Config.LOGTAG, this.connection.getAccount().getJid().asBareJid() + ": using session Id instead of transport Id for proxy destination");
+        this.candidate = candidate;
-				destBuilder.append(jingleConnection.getSessionId());
+        this.connection = jingleConnection;
-			} else {
+        final StringBuilder destBuilder = new StringBuilder();
-				destBuilder.append(jingleConnection.getTransportId());
+        if (jingleConnection.getFtVersion() == Content.Version.FT_3) {
-			}
+            Log.d(Config.LOGTAG, this.connection.getAccount().getJid().asBareJid() + ": using session Id instead of transport Id for proxy destination");
-			if (candidate.isOurs()) {
+            destBuilder.append(jingleConnection.getSessionId());
-				destBuilder.append(jingleConnection.getAccount().getJid());
+        } else {
-				destBuilder.append(jingleConnection.getCounterPart());
+            destBuilder.append(jingleConnection.getTransportId());
-			} else {
+        }
-				destBuilder.append(jingleConnection.getCounterPart());
+        if (candidate.isOurs()) {
-				destBuilder.append(jingleConnection.getAccount().getJid());
+            destBuilder.append(jingleConnection.getAccount().getJid());
-			}
+            destBuilder.append(jingleConnection.getCounterPart());
-			mDigest.reset();
+        } else {
-			this.destination = CryptoHelper.bytesToHex(mDigest
+            destBuilder.append(jingleConnection.getCounterPart());
-					.digest(destBuilder.toString().getBytes()));
+            destBuilder.append(jingleConnection.getAccount().getJid());
-		} catch (NoSuchAlgorithmException e) {
+        }
+        messageDigest.reset();
+        this.destination = CryptoHelper.bytesToHex(messageDigest.digest(destBuilder.toString().getBytes()));
+        if (candidate.isOurs() && candidate.getType() == JingleCandidate.TYPE_DIRECT) {
+            createServerSocket();
+        }
+    }
 
-		}
+    private void createServerSocket() {
-	}
+        try {
+            serverSocket = new ServerSocket();
+            serverSocket.bind(new InetSocketAddress(InetAddress.getByName(candidate.getHost()), candidate.getPort()));
+            new Thread(() -> {
+                try {
+                    final Socket socket = serverSocket.accept();
+                    new Thread(() -> {
+                        try {
+                            acceptIncomingSocketConnection(socket);
+                        } catch (IOException e) {
+                            Log.d(Config.LOGTAG, "unable to read from socket", e);
 
-	public void connect(final OnTransportConnected callback) {
+                        }
-		new Thread(() -> {
+                    }).start();
-			try {
+                } catch (IOException e) {
-				final boolean useTor = connection.getAccount().isOnion() || connection.getConnectionManager().getXmppConnectionService().useTorToConnect();
+                    if (!serverSocket.isClosed()) {
-				if (useTor) {
+                        Log.d(Config.LOGTAG, "unable to accept socket", e);
-					socket = SocksSocketFactory.createSocketOverTor(candidate.getHost(), candidate.getPort());
+                    }
-				} else {
+                }
-					socket = new Socket();
+            }).start();
-					SocketAddress address = new InetSocketAddress(candidate.getHost(), candidate.getPort());
+        } catch (IOException e) {
-					socket.connect(address, Config.SOCKET_TIMEOUT * 1000);
+            Log.d(Config.LOGTAG, "unable to bind server socket ", e);
-				}
+        }
-				inputStream = socket.getInputStream();
+    }
-				outputStream = socket.getOutputStream();
-				SocksSocketFactory.createSocksConnection(socket, destination, 0);
-				isEstablished = true;
-				callback.established();
-			} catch (IOException e) {
-				callback.failed();
-			}
-		}).start();
 
-	}
+    private void acceptIncomingSocketConnection(Socket socket) throws IOException {
+        Log.d(Config.LOGTAG, "accepted connection from " + socket.getInetAddress().getHostAddress());
+        final byte[] authBegin = new byte[2];
+        final InputStream inputStream = socket.getInputStream();
+        final OutputStream outputStream = socket.getOutputStream();
+        inputStream.read(authBegin);
+        if (authBegin[0] != 0x5) {
+            socket.close();
+        }
+        final short methodCount = authBegin[1];
+        final byte[] methods = new byte[methodCount];
+        inputStream.read(methods);
+        if (SocksSocketFactory.contains((byte) 0x00, methods)) {
+            outputStream.write(new byte[]{0x05, 0x00});
+        } else {
+            outputStream.write(new byte[]{0x05, (byte) 0xff});
+        }
+        byte[] connectCommand = new byte[4];
+        inputStream.read(connectCommand);
+        if (connectCommand[0] == 0x05 && connectCommand[1] == 0x01 && connectCommand[3] == 0x03) {
+            int destinationCount = inputStream.read();
+            final byte[] destination = new byte[destinationCount];
+            inputStream.read(destination);
+            final int port = inputStream.read();
+            final String receivedDestination = new String(destination);
+            final ByteBuffer response = ByteBuffer.allocate(7 + destination.length);
+            final byte[] responseHeader;
+            final boolean success;
+            if (receivedDestination.equals(this.destination) && this.socket == null) {
+                responseHeader = new byte[]{0x05, 0x00, 0x00, 0x03};
+                success = true;
+            } else {
+                Log.d(Config.LOGTAG,connection.getAccount().getJid().asBareJid()+": destination mismatch. received "+receivedDestination+" (expected "+this.destination+")");
+                responseHeader = new byte[]{0x05, 0x04, 0x00, 0x03};
+                success = false;
+            }
+            response.put(responseHeader);
+            response.put((byte) destination.length);
+            response.put(destination);
+            response.putShort((short) port);
+            outputStream.write(response.array());
+            outputStream.flush();
+            if (success) {
+                Log.d(Config.LOGTAG,connection.getAccount().getJid().asBareJid()+": successfully processed connection to candidate "+candidate.getHost()+":"+candidate.getPort());
+                this.socket = socket;
+                this.inputStream = inputStream;
+                this.outputStream = outputStream;
+                this.isEstablished = true;
+                FileBackend.close(serverSocket);
+            } else {
+                this.socket.close();
+            }
+        } else {
+            socket.close();
+        }
+    }
 
-	public void send(final DownloadableFile file, final OnFileTransmissionStatusChanged callback) {
+    public void connect(final OnTransportConnected callback) {
-		new Thread(() -> {
+        new Thread(() -> {
-			InputStream fileInputStream = null;
+            try {
-			final PowerManager.WakeLock wakeLock = connection.getConnectionManager().createWakeLock("jingle_send_" + connection.getSessionId());
+                final boolean useTor = connection.getAccount().isOnion() || connection.getConnectionManager().getXmppConnectionService().useTorToConnect();
-			try {
+                if (useTor) {
-				wakeLock.acquire();
+                    socket = SocksSocketFactory.createSocketOverTor(candidate.getHost(), candidate.getPort());
-				MessageDigest digest = MessageDigest.getInstance("SHA-1");
+                } else {
-				digest.reset();
+                    socket = new Socket();
-				fileInputStream = connection.getFileInputStream();
+                    SocketAddress address = new InetSocketAddress(candidate.getHost(), candidate.getPort());
-				if (fileInputStream == null) {
+                    socket.connect(address, 5000);
-					Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": could not create input stream");
+                }
-					callback.onFileTransferAborted();
+                inputStream = socket.getInputStream();
-					return;
+                outputStream = socket.getOutputStream();
-				}
+                socket.setSoTimeout(5000);
-				final InputStream innerInputStream = AbstractConnectionManager.upgrade(file, fileInputStream);
+                SocksSocketFactory.createSocksConnection(socket, destination, 0);
-				long size = file.getExpectedSize();
+                socket.setSoTimeout(0);
-				long transmitted = 0;
+                isEstablished = true;
-				int count;
+                callback.established();
-				byte[] buffer = new byte[8192];
+            } catch (IOException e) {
-				while ((count = innerInputStream.read(buffer)) > 0) {
+                callback.failed();
-					outputStream.write(buffer, 0, count);
+            }
-					digest.update(buffer, 0, count);
+        }).start();
-					transmitted += count;
-					connection.updateProgress((int) ((((double) transmitted) / size) * 100));
-				}
-				outputStream.flush();
-				file.setSha1Sum(digest.digest());
-				if (callback != null) {
-					callback.onFileTransmitted(file);
-				}
-			} catch (Exception e) {
-				Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": " + e.getMessage());
-				callback.onFileTransferAborted();
-			} finally {
-				FileBackend.close(fileInputStream);
-				WakeLockHelper.release(wakeLock);
-			}
-		}).start();
 
-	}
+    }
 
-	public void receive(final DownloadableFile file, final OnFileTransmissionStatusChanged callback) {
+    public void send(final DownloadableFile file, final OnFileTransmissionStatusChanged callback) {
-		new Thread(() -> {
+        new Thread(() -> {
-			OutputStream fileOutputStream = null;
+            InputStream fileInputStream = null;
-			final PowerManager.WakeLock wakeLock = connection.getConnectionManager().createWakeLock("jingle_receive_" + connection.getSessionId());
+            final PowerManager.WakeLock wakeLock = connection.getConnectionManager().createWakeLock("jingle_send_" + connection.getSessionId());
-			try {
+            long transmitted = 0;
-				wakeLock.acquire();
+            try {
-				MessageDigest digest = MessageDigest.getInstance("SHA-1");
+                wakeLock.acquire();
-				digest.reset();
+                MessageDigest digest = MessageDigest.getInstance("SHA-1");
-				//inputStream.skip(45);
+                digest.reset();
-				socket.setSoTimeout(30000);
+                fileInputStream = connection.getFileInputStream();
-				fileOutputStream = connection.getFileOutputStream();
+                if (fileInputStream == null) {
-				if (fileOutputStream == null) {
+                    Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": could not create input stream");
-					callback.onFileTransferAborted();
+                    callback.onFileTransferAborted();
-					Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": could not create output stream");
+                    return;
-					return;
+                }
-				}
+                final InputStream innerInputStream = AbstractConnectionManager.upgrade(file, fileInputStream);
-				double size = file.getExpectedSize();
+                long size = file.getExpectedSize();
-				long remainingSize = file.getExpectedSize();
+                int count;
-				byte[] buffer = new byte[8192];
+                byte[] buffer = new byte[8192];
-				int count;
+                while ((count = innerInputStream.read(buffer)) > 0) {
-				while (remainingSize > 0) {
+                    outputStream.write(buffer, 0, count);
-					count = inputStream.read(buffer);
+                    digest.update(buffer, 0, count);
-					if (count == -1) {
+                    transmitted += count;
-						callback.onFileTransferAborted();
+                    connection.updateProgress((int) ((((double) transmitted) / size) * 100));
-						Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": file ended prematurely with " + remainingSize + " bytes remaining");
+                }
-						return;
+                outputStream.flush();
-					} else {
+                file.setSha1Sum(digest.digest());
-						fileOutputStream.write(buffer, 0, count);
+                if (callback != null) {
-						digest.update(buffer, 0, count);
+                    callback.onFileTransmitted(file);
-						remainingSize -= count;
+                }
-					}
+            } catch (Exception e) {
-					connection.updateProgress((int) (((size - remainingSize) / size) * 100));
+                final Account account = connection.getAccount();
-				}
+                Log.d(Config.LOGTAG, account.getJid().asBareJid()+": failed sending file after "+transmitted+"/"+file.getExpectedSize()+" ("+ socket.getInetAddress()+":"+socket.getPort()+")", e);
-				fileOutputStream.flush();
+                callback.onFileTransferAborted();
-				fileOutputStream.close();
+            } finally {
-				file.setSha1Sum(digest.digest());
+                FileBackend.close(fileInputStream);
-				callback.onFileTransmitted(file);
+                WakeLockHelper.release(wakeLock);
-			} catch (Exception e) {
+            }
-				Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": " + e.getMessage());
+        }).start();
-				callback.onFileTransferAborted();
-			} finally {
-				WakeLockHelper.release(wakeLock);
-				FileBackend.close(fileOutputStream);
-				FileBackend.close(inputStream);
-			}
-		}).start();
-	}
 
-	public boolean isProxy() {
+    }
-		return this.candidate.getType() == JingleCandidate.TYPE_PROXY;
-	}
 
-	public boolean needsActivation() {
+    public void receive(final DownloadableFile file, final OnFileTransmissionStatusChanged callback) {
-		return (this.isProxy() && !this.activated);
+        new Thread(() -> {
-	}
+            OutputStream fileOutputStream = null;
+            final PowerManager.WakeLock wakeLock = connection.getConnectionManager().createWakeLock("jingle_receive_" + connection.getSessionId());
+            try {
+                wakeLock.acquire();
+                MessageDigest digest = MessageDigest.getInstance("SHA-1");
+                digest.reset();
+                //inputStream.skip(45);
+                socket.setSoTimeout(30000);
+                fileOutputStream = connection.getFileOutputStream();
+                if (fileOutputStream == null) {
+                    callback.onFileTransferAborted();
+                    Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": could not create output stream");
+                    return;
+                }
+                double size = file.getExpectedSize();
+                long remainingSize = file.getExpectedSize();
+                byte[] buffer = new byte[8192];
+                int count;
+                while (remainingSize > 0) {
+                    count = inputStream.read(buffer);
+                    if (count == -1) {
+                        callback.onFileTransferAborted();
+                        Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": file ended prematurely with " + remainingSize + " bytes remaining");
+                        return;
+                    } else {
+                        fileOutputStream.write(buffer, 0, count);
+                        digest.update(buffer, 0, count);
+                        remainingSize -= count;
+                    }
+                    connection.updateProgress((int) (((size - remainingSize) / size) * 100));
+                }
+                fileOutputStream.flush();
+                fileOutputStream.close();
+                file.setSha1Sum(digest.digest());
+                callback.onFileTransmitted(file);
+            } catch (Exception e) {
+                Log.d(Config.LOGTAG, connection.getAccount().getJid().asBareJid() + ": " + e.getMessage());
+                callback.onFileTransferAborted();
+            } finally {
+                WakeLockHelper.release(wakeLock);
+                FileBackend.close(fileOutputStream);
+                FileBackend.close(inputStream);
+            }
+        }).start();
+    }
 
-	public void disconnect() {
+    public boolean isProxy() {
-		FileBackend.close(inputStream);
+        return this.candidate.getType() == JingleCandidate.TYPE_PROXY;
-		FileBackend.close(outputStream);
+    }
-		FileBackend.close(socket);
-	}
 
-	public boolean isEstablished() {
+    public boolean needsActivation() {
-		return this.isEstablished;
+        return (this.isProxy() && !this.activated);
-	}
+    }
 
-	public JingleCandidate getCandidate() {
+    public void disconnect() {
-		return this.candidate;
+        FileBackend.close(inputStream);
-	}
+        FileBackend.close(outputStream);
+        FileBackend.close(socket);
+        FileBackend.close(serverSocket);
+    }
 
-	public void setActivated(boolean activated) {
+    public boolean isEstablished() {
-		this.activated = activated;
+        return this.isEstablished;
-	}
+    }
+
+    public JingleCandidate getCandidate() {
+        return this.candidate;
+    }
+
+    public void setActivated(boolean activated) {
+        this.activated = activated;
+    }
 }

src/main/res/values-ar/strings.xml

@@ -27,7 +27,6 @@
   <string name="just_now">الآن</string>
   <string name="minute_ago">منذ 1 دقيقة</string>
   <string name="minutes_ago">دقائق %d منذ</string>
-  <string name="unread_conversations">محادثات غير مقروءة</string>
   <string name="sending">ارسال</string>
   <string name="message_decrypting">حل شيفرة الرسالة. الرجاء الإنتظار ...</string>
   <string name="pgp_message">رسالة مشفرة عبر OpenPGP</string>

src/main/res/values-bg/strings.xml

@@ -28,7 +28,6 @@
   <string name="just_now">току-що</string>
   <string name="minute_ago">преди 1 минута</string>
   <string name="minutes_ago">преди %d минути</string>
-  <string name="unread_conversations">непрочетени разговори</string>
   <string name="sending">изпращане…</string>
   <string name="message_decrypting">Дешифроване на съобщението. Моля, изчакайте…</string>
   <string name="pgp_message">Съобщение, шифр. чрез OpenPGP</string>

src/main/res/values-ca/strings.xml

@@ -27,7 +27,6 @@
   <string name="just_now">Ara</string>
   <string name="minute_ago">fa 1 min</string>
   <string name="minutes_ago">fa %d mins</string>
-  <string name="unread_conversations">Converses sense llegir o no llegides</string>
   <string name="sending">enviant…</string>
   <string name="message_decrypting">Desxifrant el missatge. Espereu…</string>
   <string name="pgp_message">Missatge xifrat amb OpenPGP</string>

src/main/res/values-cs/strings.xml

@@ -21,7 +21,6 @@
   <string name="just_now">právě teď</string>
   <string name="minute_ago">před minutou</string>
   <string name="minutes_ago">před %d minutami</string>
-  <string name="unread_conversations">nepřečtené konverzace</string>
   <string name="sending">odesílám…</string>
   <string name="message_decrypting">Dešifrování zprávy. Chvíli strpení...</string>
   <string name="pgp_message">OpenPGP šifrovaná zpráva</string>

src/main/res/values-de/strings.xml

@@ -30,7 +30,7 @@
   <string name="just_now">gerade</string>
   <string name="minute_ago">vor einer Minute</string>
   <string name="minutes_ago">vor %d Minuten</string>
-  <string name="unread_conversations">ungelesene Unterhaltungen</string>
+  <string name="x_unread_conversations">%d ungelesene Unterhaltungen</string>
   <string name="sending">senden…</string>
   <string name="message_decrypting">Nachricht wird entschlüsselt. Bitte warten …</string>
   <string name="pgp_message">OpenPGP-verschlüsselte Nachricht</string>

src/main/res/values-el/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">μόλις τώρα</string>
   <string name="minute_ago">πριν από 1 λεπτό</string>
   <string name="minutes_ago">πριν από %d λεπτά</string>
-  <string name="unread_conversations">μη αναγνωσμένες Συζητήσεις</string>
   <string name="sending">αποστολή...</string>
   <string name="message_decrypting">Αποκρυπτογράφηση μηνύματος. Παρακαλώ περιμένετε...</string>
   <string name="pgp_message">OpenPGP κρυπτογραφημένο μήνυμα</string>

src/main/res/values-es/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">ahora</string>
   <string name="minute_ago">hace 1 min</string>
   <string name="minutes_ago">hace %d min</string>
-  <string name="unread_conversations">conversaciones por leer</string>
   <string name="sending">enviando…</string>
   <string name="message_decrypting">Descifrando mensaje. Por favor, espera...</string>
   <string name="pgp_message">Mensaje cifrado con OpenPGP</string>

src/main/res/values-eu/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">orain</string>
   <string name="minute_ago">min 1 lehenago</string>
   <string name="minutes_ago">%d min lehenago</string>
-  <string name="unread_conversations">irakurri gabeko elkarrizketak</string>
   <string name="sending">bidaltzen…</string>
   <string name="message_decrypting">Mezua desenkriptatzen. Mesedez itxaron…</string>
   <string name="pgp_message">OpenPGPz enkriptatutako mezua</string>

src/main/res/values-fa-rIR/strings.xml

@@ -25,7 +25,6 @@
   <string name="just_now">هم اکنون</string>
   <string name="minute_ago">1 دقیقه قبل</string>
   <string name="minutes_ago">%d  دقیقه قبل</string>
-  <string name="unread_conversations">گفتگو های خوانده نشده</string>
   <string name="sending">در حال ارسال...</string>
   <string name="message_decrypting">در حال رمزگشایی پیام. لطفا صبور باشید...</string>
   <string name="pgp_message">پیام رمز شده به وسیله OpenPGP</string>

src/main/res/values-fr/strings.xml

@@ -28,7 +28,6 @@
   <string name="just_now">À l\'instant</string>
   <string name="minute_ago">Il y a 1 minute</string>
   <string name="minutes_ago">Il y a %d minutes</string>
-  <string name="unread_conversations">Conversations non lues</string>
   <string name="sending">Envoi…</string>
   <string name="message_decrypting">Déchiffrement du message. Veuillez patienter...</string>
   <string name="pgp_message">Message chiffré avec OpenPGP</string>

src/main/res/values-gl/strings.xml

@@ -30,7 +30,7 @@
   <string name="just_now">agora</string>
   <string name="minute_ago">Hai 1 min</string>
   <string name="minutes_ago">hai %d minutos</string>
-  <string name="unread_conversations">conversas sen ler</string>
+  <string name="x_unread_conversations">%d conversas non lidas</string>
   <string name="sending">enviando…</string>
   <string name="message_decrypting">Descifrando a mensaxe. Por favor agarde...</string>
   <string name="pgp_message">Mensaxe cifrado con OpenPGP</string>

src/main/res/values-hu/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">Éppen most</string>
   <string name="minute_ago">1 perce</string>
   <string name="minutes_ago">%d perce</string>
-  <string name="unread_conversations">olvasatlan beszélgetés</string>
   <string name="sending">küldés...</string>
   <string name="message_decrypting">Üzenet dekódolása. Kérem várjon...</string>
   <string name="pgp_message">OpenPGP kódolású üzenet</string>
@@ -871,4 +870,5 @@
   <string name="not_a_backup_file">A kiválasztott fájl nem a Conversations biztonsági mentése</string>
   <string name="account_already_setup">Ez a fiók már be lett állítva</string>
   <string name="please_enter_password">Kérem, adja meg a fiókhoz tartozó jelszót</string>
+  <string name="unable_to_perform_this_action">Nem sikerült ezt a cselekvést elvégezni</string>
 </resources>

src/main/res/values-id/strings.xml

@@ -21,7 +21,6 @@
   <string name="just_now">sekarang</string>
   <string name="minute_ago">1 min lalu</string>
   <string name="minutes_ago">%d min lalu</string>
-  <string name="unread_conversations">Percakapan belum dibaca</string>
   <string name="sending">mengirim...</string>
   <string name="message_decrypting">Mendekripsi pesan. Mohon tunggu…</string>
   <string name="pgp_message">Pesan terenkripsi OpenPGP</string>

src/main/res/values-it/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">adesso</string>
   <string name="minute_ago">1 min fa</string>
   <string name="minutes_ago">%d min fa</string>
-  <string name="unread_conversations">Conversazioni non lette</string>
   <string name="sending">invio…</string>
   <string name="message_decrypting">Decifrazione messaggio. Attendere prego...</string>
   <string name="pgp_message">Messaggio cifrato con OpenPGP</string>

src/main/res/values-iw/strings.xml

@@ -20,7 +20,6 @@
   <string name="just_now">ממש עכשיו</string>
   <string name="minute_ago">לפני דקה</string>
   <string name="minutes_ago">לפני %d דקות</string>
-  <string name="unread_conversations">שיחות שלא נקראו</string>
   <string name="sending">שולח...</string>
   <string name="message_decrypting">כעת מפענח צופן הודעה. אנא המתן…</string>
   <string name="pgp_message">הודעה מוצפנת OpenPGP</string>

src/main/res/values-ja/strings.xml

@@ -28,7 +28,6 @@
   <string name="just_now">ちょうど今</string>
   <string name="minute_ago">1 分前</string>
   <string name="minutes_ago">%d 分前</string>
-  <string name="unread_conversations">未読の会話</string>
   <string name="sending">送信中…</string>
   <string name="message_decrypting">メッセージを復号化しています。しばらくお待ちください…</string>
   <string name="pgp_message">OpenPGP 暗号化メッセージ</string>

src/main/res/values-ko/strings.xml

@@ -21,7 +21,6 @@
   <string name="just_now">방금 </string>
   <string name="minute_ago">1분 전 </string>
   <string name="minutes_ago">%d 분 전 </string>
-  <string name="unread_conversations">읽지 않은 대화 </string>
   <string name="sending">보내는중... </string>
   <string name="message_decrypting">메세지 복호화중입니다. 기다리세요...</string>
   <string name="pgp_message">OpenPGP로 암호화된 메세지</string>

src/main/res/values-nb-rNO/strings.xml

@@ -24,7 +24,6 @@
   <string name="just_now">akkurat nå</string>
   <string name="minute_ago">1 minutt siden</string>
   <string name="minutes_ago">%d minutter siden</string>
-  <string name="unread_conversations">uleste samtaler</string>
   <string name="sending">sender...</string>
   <string name="message_decrypting">Dekrypterer melding mens du venter.</string>
   <string name="pgp_message">OpenPGP-kryptert melding</string>

src/main/res/values-nl/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">zojuist</string>
   <string name="minute_ago">1 min. geleden</string>
   <string name="minutes_ago">%d min. geleden</string>
-  <string name="unread_conversations">ongelezen gesprekken</string>
   <string name="sending">versturen…</string>
   <string name="message_decrypting">Bericht aan het ontsleutelen. Even geduld…</string>
   <string name="pgp_message">OpenPGP-versleuteld bericht</string>

src/main/res/values-pl/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">przed chwilą</string>
   <string name="minute_ago">minutę temu</string>
   <string name="minutes_ago">%d minut temu</string>
-  <string name="unread_conversations">nieprzeczytanych konwersacji</string>
   <string name="sending">wysyłanie...</string>
   <string name="message_decrypting">Odszyfrowywanie wiadomości. To zajmie tylko chwilę...</string>
   <string name="pgp_message">Wiadomość zaszyfrowana OpenPGP</string>

src/main/res/values-pt-rBR/strings.xml

@@ -17,6 +17,8 @@
   <string name="action_unblock_contact">Desbloquear contato</string>
   <string name="action_block_domain">Bloquear domínio</string>
   <string name="action_unblock_domain">Desbloquear domínio</string>
+  <string name="action_block_participant">Bloquear participante</string>
+  <string name="action_unblock_participant">Desbloquear participante</string>
   <string name="title_activity_manage_accounts">Gerenciar contas</string>
   <string name="title_activity_settings">Configurações</string>
   <string name="title_activity_sharewith">Compartilhar com a conversa</string>
@@ -28,7 +30,7 @@
   <string name="just_now">agora</string>
   <string name="minute_ago">1 minuto atrás</string>
   <string name="minutes_ago">%d minutos atrás</string>
-  <string name="unread_conversations">conversas não lidas</string>
+  <string name="x_unread_conversations">%d conversas não lidas</string>
   <string name="sending">enviando...</string>
   <string name="message_decrypting">Descriptografando a mensagem. Por favor, aguarde...</string>
   <string name="pgp_message">Mensagem criptografada via OpenPGP</string>
@@ -861,4 +863,12 @@
   <string name="this_looks_like_a_domain">Isso se parece com um endereço de domínio</string>
   <string name="add_anway">Adicionar mesmo assim</string>
   <string name="this_looks_like_channel">Isso se parece com um endereço de canal</string>
+  <string name="share_backup_files">Compartilhar arquivos de backup</string>
+  <string name="conversations_backup">Backup do Conversations</string>
+  <string name="event">Evento</string>
+  <string name="open_backup">Abrir backup</string>
+  <string name="not_a_backup_file">O arquivo que você selecionou não é um backup do Conversations</string>
+  <string name="account_already_setup">Esta conta já foi configurada</string>
+  <string name="please_enter_password">Por favor, digite a senha para esta conta</string>
+  <string name="unable_to_perform_this_action">Não foi possível executar essa ação</string>
 </resources>

src/main/res/values-pt/strings.xml

@@ -23,7 +23,6 @@
   <string name="just_now">agora há pouco</string>
   <string name="minute_ago">1 minuto atrás</string>
   <string name="minutes_ago">%d minutos atrás</string>
-  <string name="unread_conversations">Conversas não lidas</string>
   <string name="sending">enviando...</string>
   <string name="message_decrypting">Decifrando a mensagem. Por favor aguarde...</string>
   <string name="pgp_message">Mensagem cifrada OpenPGP</string>

src/main/res/values-ro-rRO/strings.xml

@@ -30,7 +30,6 @@
   <string name="just_now">în acest moment</string>
   <string name="minute_ago">acum un minut</string>
   <string name="minutes_ago">acum %d minute</string>
-  <string name="unread_conversations">conversații necitite</string>
   <string name="sending">trimitere...</string>
   <string name="message_decrypting">Decriptez mesaj. Te rog așteaptă...</string>
   <string name="pgp_message">Mesaj criptat cu OpenPGP</string>

src/main/res/values-ru/strings.xml

@@ -27,7 +27,6 @@
   <string name="just_now">только что</string>
   <string name="minute_ago">1 минуту назад</string>
   <string name="minutes_ago">%d мин. назад</string>
-  <string name="unread_conversations">сообщен. не прочитано</string>
   <string name="sending">отправка…</string>
   <string name="message_decrypting">Расшифровка сообщения. Подождите…</string>
   <string name="pgp_message">OpenPGP зашифр. сообщение</string>

src/main/res/values-sk/strings.xml

@@ -20,7 +20,6 @@
   <string name="just_now">práve teraz</string>
   <string name="minute_ago">pred 1 minútou</string>
   <string name="minutes_ago">pred %d minútami</string>
-  <string name="unread_conversations">neprečítané konverzácie</string>
   <string name="sending">posielam...</string>
   <string name="nick_in_use">Prezývka už existuje</string>
   <string name="admin">Administrátor</string>

src/main/res/values-sr/strings.xml

@@ -25,7 +25,6 @@
   <string name="just_now">управо сад</string>
   <string name="minute_ago">пре минут</string>
   <string name="minutes_ago">пре %d минута</string>
-  <string name="unread_conversations">непрочитане преписке</string>
   <string name="sending">шаљем…</string>
   <string name="message_decrypting">Дешифрујем поруку, сачекајте…</string>
   <string name="pgp_message">ОпенПГП шифрована порука</string>

src/main/res/values-sv/strings.xml

@@ -21,7 +21,6 @@
   <string name="just_now">just nu</string>
   <string name="minute_ago">1 min sedan</string>
   <string name="minutes_ago">%d min sedan</string>
-  <string name="unread_conversations">olästa konversationer</string>
   <string name="sending">skickar…</string>
   <string name="message_decrypting">Avkrypterar meddelande. Vänta…</string>
   <string name="pgp_message">OpenPGP-krypterat meddelande</string>

src/main/res/values-tr-rTR/strings.xml

@@ -21,7 +21,6 @@
   <string name="just_now">şimdi</string>
   <string name="minute_ago">1 dakika önce</string>
   <string name="minutes_ago">%d dakika önc</string>
-  <string name="unread_conversations">okunmamış konuşmalar</string>
   <string name="sending">gönderiyor…</string>
   <string name="message_decrypting">İleti deşifre ediliyor. Lütfen bekleyin…</string>
   <string name="pgp_message">OpenPGP şifreli ileti</string>

src/main/res/values-uk/strings.xml

@@ -28,7 +28,6 @@
   <string name="just_now">щойно</string>
   <string name="minute_ago">1 хвилину тому</string>
   <string name="minutes_ago">%d хвилин тому</string>
-  <string name="unread_conversations">не переглянуті розмови </string>
   <string name="sending">відправляю…</string>
   <string name="message_decrypting">Розшифровую повідомлення. Зачекайте, будь ласка…</string>
   <string name="pgp_message">Повідомлення, зашифроване OpenPGP</string>

src/main/res/values-vi/strings.xml

@@ -21,7 +21,6 @@
   <string name="just_now">mới đây</string>
   <string name="minute_ago">1 phút trước</string>
   <string name="minutes_ago">%d phút trước</string>
-  <string name="unread_conversations">Các hội thoại chưa đọc</string>
   <string name="sending">đang gửi...</string>
   <string name="message_decrypting">Đang giải mã tin nhắn. Xin chờ...</string>
   <string name="pgp_message">Tin nhắn mã hoá bằng OpenPGP</string>

src/main/res/values-zh-rCN/strings.xml

@@ -28,7 +28,6 @@
   <string name="just_now">刚刚</string>
   <string name="minute_ago">1分钟前</string>
   <string name="minutes_ago">%d分钟前</string>
-  <string name="unread_conversations">未读会话</string>
   <string name="sending">正在发送…</string>
   <string name="message_decrypting">解密信息中. 请稍候…</string>
   <string name="pgp_message">OpenPGP 加密的信息</string>

src/main/res/values-zh-rTW/strings.xml

@@ -21,7 +21,6 @@
   <string name="just_now">剛剛</string>
   <string name="minute_ago">1 分鐘前</string>
   <string name="minutes_ago">%d分鐘前</string>
-  <string name="unread_conversations">未讀會話</string>
   <string name="sending">正在發送…</string>
   <string name="message_decrypting">訊息解密中，請稍候…</string>
   <string name="pgp_message">OpenPGP 加密的信息</string>

src/main/res/values/strings.xml

@@ -30,7 +30,7 @@
     <string name="just_now">just now</string>
     <string name="minute_ago">1 min ago</string>
     <string name="minutes_ago">%d mins ago</string>
-    <string name="unread_conversations">unread Conversations</string>
+    <string name="x_unread_conversations">%d unread conversations</string>
     <string name="sending">sending…</string>
     <string name="message_decrypting">Decrypting message. Please wait…</string>
     <string name="pgp_message">OpenPGP encrypted message</string>

src/quicksy/res/values-pt-rBR/strings.xml

@@ -19,4 +19,8 @@
     <string name="no_microphone_permission">O Quicksy necessita de acesso ao microfone</string>
     <string name="foreground_service_channel_description">Essa categoria de notificação é utilizada para exibir uma notificação permanente indicando que o Quicksy está em execução.</string>
     <string name="set_profile_picture">Imagem de perfil do Quicksy</string>
-    </resources>
+    <string name="not_available_in_your_country">Quicksy agora está disponível no seu país.</string>
+    <string name="unable_to_verify_server_identity">Não foi possível verificar a identidade do servidor.</string>
+    <string name="unknown_security_error">Erro de segurança desconhecido.</string>
+    <string name="timeout_while_connecting_to_server">Tempo esgotado ao tentar conectar ao servidor.</string>
+</resources>