adapt caps on whether or not message confirmation is on

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

@@ -5,24 +5,30 @@ import android.util.Base64;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.text.SimpleDateFormat;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.List;
 import java.util.Locale;
 import java.util.TimeZone;
 
 import eu.siacs.conversations.services.XmppConnectionService;
 
 public abstract class AbstractGenerator {
-	public final String[] FEATURES = {"urn:xmpp:jingle:1",
+	public final String[] FEATURES = {
+			"urn:xmpp:jingle:1",
 			"urn:xmpp:jingle:apps:file-transfer:3",
 			"urn:xmpp:jingle:transports:s5b:1",
-			"urn:xmpp:jingle:transports:ibb:1", "urn:xmpp:receipts",
-			"urn:xmpp:chat-markers:0", "http://jabber.org/protocol/muc",
-			"jabber:x:conference", "http://jabber.org/protocol/caps",
+			"urn:xmpp:jingle:transports:ibb:1",
+			"http://jabber.org/protocol/muc",
+			"jabber:x:conference",
+			"http://jabber.org/protocol/caps",
 			"http://jabber.org/protocol/disco#info",
 			"urn:xmpp:avatar:metadata+notify",
 			"urn:xmpp:ping"};
+	public final String[] MESSAGE_CONFIRMATION_FEATURES = {
+			"urn:xmpp:chat-markers:0",
+			"urn:xmpp:receipts"
+	};
 	public final String IDENTITY_NAME = "Conversations 1.0-beta";
 	public final String IDENTITY_TYPE = "phone";
 
@@ -43,7 +49,11 @@ public abstract class AbstractGenerator {
 		} catch (NoSuchAlgorithmException e) {
 			return null;
 		}
-		List<String> features = Arrays.asList(FEATURES);
+		ArrayList<String> features = new ArrayList<>();
+		features.addAll(Arrays.asList(FEATURES));
+		if (mXmppConnectionService.confirmMessages()) {
+			features.addAll(Arrays.asList(MESSAGE_CONFIRMATION_FEATURES));
+		}
 		Collections.sort(features);
 		for (String feature : features) {
 			s.append(feature + "<");

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

@@ -49,7 +49,7 @@ public class PresenceGenerator extends AbstractGenerator {
 			Element cap = packet.addChild("c",
 					"http://jabber.org/protocol/caps");
 			cap.setAttribute("hash", "sha-1");
-			cap.setAttribute("node", "http://conversions.siacs.eu");
+			cap.setAttribute("node", "http://conversions.im");
 			cap.setAttribute("ver", capHash);
 		}
 		return packet;

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

@@ -140,7 +140,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 			account.pendingConferenceLeaves.clear();
 			fetchRosterFromServer(account);
 			fetchBookmarks(account);
-			sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
+			sendPresence(account);
 			connectMultiModeConversations(account);
 			updateConversationUi();
 		}
@@ -2150,6 +2150,10 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 		}
 	}
 
+	public void sendPresence(final Account account) {
+		sendPresencePacket(account, mPresenceGenerator.sendPresence(account));
+	}
+
 	public MessageGenerator getMessageGenerator() {
 		return this.mMessageGenerator;
 	}

src/main/java/eu/siacs/conversations/ui/SettingsActivity.java

@@ -71,6 +71,14 @@ public class SettingsActivity extends XmppActivity implements
 			}
 		} else if (name.equals("keep_foreground_service")) {
 			xmppConnectionService.toggleForegroundService();
+		} else if (name.equals("confirm_messages")) {
+			if (xmppConnectionServiceBound) {
+				for (Account account : xmppConnectionService.getAccounts()) {
+					if (!account.isOptionSet(Account.OPTION_DISABLED)) {
+						xmppConnectionService.sendPresence(account);
+					}
+				}
+			}
 		}
 	}
 

src/main/java/eu/siacs/conversations/ui/XmppActivity.java

@@ -402,9 +402,7 @@ public abstract class XmppActivity extends Activity {
 					public void success(Account account) {
 						xmppConnectionService.databaseBackend
 							.updateAccount(account);
-						xmppConnectionService.sendPresencePacket(account,
-								xmppConnectionService.getPresenceGenerator()
-								.sendPresence(account));
+						xmppConnectionService.sendPresence(account);
 						if (conversation != null) {
 							conversation
 								.setNextEncryption(Message.ENCRYPTION_PGP);