expert setting to trigger extended connection options

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

@@ -1969,7 +1969,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 							}
 						}
 					}
-					Element form = query.findChild("x","jabber:x:data");
+					Element form = query.findChild("x", "jabber:x:data");
 					if (form != null) {
 						conversation.getMucOptions().updateFormData(Data.parse(form));
 					}
@@ -2378,7 +2378,7 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 								updateConversationUi();
 								updateRosterUi();
 							} else {
-								Conversation conversation = find(account,avatar.owner.toBareJid());
+								Conversation conversation = find(account, avatar.owner.toBareJid());
 								if (conversation != null && conversation.getMode() == Conversation.MODE_MULTI) {
 									MucOptions.User user = conversation.getMucOptions().findUser(avatar.owner.getResourcepart());
 									if (user != null) {
@@ -2586,6 +2586,10 @@ public class XmppConnectionService extends Service implements OnPhoneContactsLoa
 		return Config.FORCE_ORBOT || getPreferences().getBoolean("use_tor", false);
 	}
 
+	public boolean showExtendedConnectionOptions() {
+		return getPreferences().getBoolean("show_connection_options", false);
+	}
+
 	public int unreadCount() {
 		int count = 0;
 		for (Conversation conversation : getConversations()) {

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

@@ -5,6 +5,7 @@ import android.app.AlertDialog.Builder;
 import android.app.PendingIntent;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Bundle;
@@ -91,7 +92,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 
 	private Jid jidToEdit;
 	private boolean mInitMode = false;
-	private boolean mUseTor = false;
+	private boolean mShowOptions = false;
 	private Account mAccount;
 	private String messageFingerprint;
 
@@ -133,7 +134,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			}
 			String hostname = null;
 			int numericPort = 5222;
-			if (mUseTor) {
+			if (mShowOptions) {
 				hostname = mHostname.getText().toString();
 				final String port = mPort.getText().toString();
 				if (hostname.contains(" ")) {
@@ -511,8 +512,11 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 				}
 			}
 		}
-		this.mUseTor = Config.FORCE_ORBOT || getPreferences().getBoolean("use_tor", false);
+		SharedPreferences preferences = getPreferences();
-		this.mNamePort.setVisibility(mUseTor ? View.VISIBLE : View.GONE);
+		boolean useTor = Config.FORCE_ORBOT || preferences.getBoolean("use_tor", false);
+		this.mShowOptions = useTor || preferences.getBoolean("show_connection_options", false);
+		mHostname.setHint(useTor ? R.string.hostname_or_onion : R.string.hostname_example);
+		this.mNamePort.setVisibility(mShowOptions ? View.VISIBLE : View.GONE);
 	}
 
 	@Override
@@ -598,7 +602,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			this.mHostname.getEditableText().append(this.mAccount.getHostname());
 			this.mPort.setText("");
 			this.mPort.getEditableText().append(String.valueOf(this.mAccount.getPort()));
-			this.mNamePort.setVisibility(mUseTor ? View.VISIBLE : View.GONE);
+			this.mNamePort.setVisibility(mShowOptions ? View.VISIBLE : View.GONE);
 
 		}
 		if (!mInitMode) {
@@ -740,12 +744,24 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			}
 		} else {
 			if (this.mAccount.errorStatus()) {
-				this.mAccountJid.setError(getString(this.mAccount.getStatus().getReadableId()));
+				final EditText errorTextField;
+				if (this.mAccount.getStatus() == Account.State.UNAUTHORIZED) {
+					errorTextField = this.mPassword;
+				} else if (mShowOptions
+						&& this.mAccount.getStatus() == Account.State.SERVER_NOT_FOUND
+						&& this.mHostname.getText().length() > 0) {
+					errorTextField = this.mHostname;
+				} else {
+					errorTextField = this.mAccountJid;
+				}
+				errorTextField.setError(getString(this.mAccount.getStatus().getReadableId()));
 				if (init || !accountInfoEdited()) {
-					this.mAccountJid.requestFocus();
+					errorTextField.requestFocus();
 				}
 			} else {
 				this.mAccountJid.setError(null);
+				this.mPassword.setError(null);
+				this.mHostname.setError(null);
 			}
 			this.mStats.setVisibility(View.GONE);
 		}

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

@@ -243,6 +243,7 @@ public class XmppConnection implements Runnable {
 			tagWriter = new TagWriter();
 			this.changeStatus(Account.State.CONNECTING);
 			final boolean useTor = mXmppConnectionService.useTorToConnect() || account.isOnion();
+			final boolean extended = mXmppConnectionService.showExtendedConnectionOptions();
 			if (useTor) {
 				String destination;
 				if (account.getHostname() == null || account.getHostname().isEmpty()) {
@@ -250,8 +251,16 @@ public class XmppConnection implements Runnable {
 				} else {
 					destination = account.getHostname();
 				}
-				Log.d(Config.LOGTAG,account.getJid().toBareJid()+": connect to "+destination+" via TOR");
+				Log.d(Config.LOGTAG, account.getJid().toBareJid() + ": connect to " + destination + " via TOR");
-				socket = SocksSocketFactory.createSocketOverTor(destination,account.getPort());
+				socket = SocksSocketFactory.createSocketOverTor(destination, account.getPort());
+				startXmpp();
+			} else if (extended && account.getHostname() != null && !account.getHostname().isEmpty()) {
+				socket = new Socket();
+				try {
+					socket.connect(new InetSocketAddress(account.getHostname(), account.getPort()), Config.SOCKET_TIMEOUT * 1000);
+				} catch (IOException e) {
+					throw new UnknownHostException();
+				}
 				startXmpp();
 			} else if (DNSHelper.isIp(account.getServer().toString())) {
 				socket = new Socket();

src/main/res/values/strings.xml

@@ -529,6 +529,9 @@
 	<string name="pref_away_when_screen_off_summary">Marks your resource as away when the screen is turned off</string>
 	<string name="pref_xa_on_silent_mode">Not available in silent mode</string>
 	<string name="pref_xa_on_silent_mode_summary">Marks your resource as not available when device is in silent mode</string>
+	<string name="pref_show_connection_options">Extended connection options</string>
+	<string name="pref_show_connection_options_summary">Show hostname and port options when setting up an account</string>
+	<string name="hostname_example">xmpp.example.com</string>
 	<string name="action_add_account_with_certificate">Add account with certificate</string>
 	<string name="unable_to_parse_certificate">Unable to parse certificate</string>
 	<string name="authenticate_with_certificate">Leave empty to authenticate w/ certificate</string>

src/main/res/xml/preferences.xml

@@ -155,6 +155,11 @@
                     android:key="use_tor"
                     android:summary="@string/pref_use_tor_summary"
                     android:title="@string/pref_use_tor"/>
+                <CheckBoxPreference
+                    android:defaultValue="false"
+                    android:key="show_connection_options"
+                    android:summary="@string/pref_show_connection_options_summary"
+                    android:title="@string/pref_show_connection_options"/>
             </PreferenceCategory>
             <PreferenceCategory android:title="@string/pref_input_options">
                 <CheckBoxPreference