Index: trunk/src/org/openstreetmap/josm/io/OsmServerUserPreferencesReader.java
===================================================================
--- trunk/src/org/openstreetmap/josm/io/OsmServerUserPreferencesReader.java	(revision 12502)
+++ trunk/src/org/openstreetmap/josm/io/OsmServerUserPreferencesReader.java	(revision 12502)
@@ -0,0 +1,114 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm.io;
+
+import static org.openstreetmap.josm.tools.I18n.tr;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathException;
+import javax.xml.xpath.XPathFactory;
+
+import org.openstreetmap.josm.data.osm.DataSet;
+import org.openstreetmap.josm.gui.progress.ProgressMonitor;
+import org.openstreetmap.josm.tools.Utils;
+import org.openstreetmap.josm.tools.XmlParsingException;
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+/**
+ * Download and parse preferences of the logged in user (OSM API v0.6 "/user/preferences").
+ * @see <a href="https://wiki.openstreetmap.org/wiki/API_v0.6#Preferences_of_the_logged-in_user">/user/preferences</a>
+ * @since 12502
+ */
+public class OsmServerUserPreferencesReader extends OsmServerReader {
+
+    protected static String getAttribute(Node node, String name) {
+        return node.getAttributes().getNamedItem(name).getNodeValue();
+    }
+
+    /**
+     * Parses the given XML data and returns the associated user preferences.
+     * @param document The XML contents
+     * @return The user preferences
+     * @throws XmlParsingException if parsing goes wrong
+     */
+    public static Map<String, String> buildFromXML(Document document) throws XmlParsingException {
+        try {
+            XPath xpath = XPathFactory.newInstance().newXPath();
+            Map<String, String> result = new HashMap<>();
+
+            // -- preferences
+            NodeList xmlNodeList = (NodeList) xpath.compile("/osm/preferences/preference").evaluate(document, XPathConstants.NODESET);
+            if (xmlNodeList != null) {
+                for (int i = 0; i < xmlNodeList.getLength(); i++) {
+                    Node xmlNode = xmlNodeList.item(i);
+                    String k = getAttribute(xmlNode, "k");
+                    if (k == null)
+                        throw new XmlParsingException(tr("Missing attribute ''{0}'' on XML tag ''{1}''.", "k", "preference"));
+                    String v = getAttribute(xmlNode, "v");
+                    if (v == null)
+                        throw new XmlParsingException(tr("Missing attribute ''{0}'' on XML tag ''{1}''.", "v", "preference"));
+                    result.put(k, v);
+                }
+            }
+
+            return result;
+        } catch (XPathException e) {
+            throw new XmlParsingException(e);
+        }
+    }
+
+    /**
+     * Constructs a new {@code OsmServerUserInfoReader}.
+     */
+    public OsmServerUserPreferencesReader() {
+        setDoAuthenticate(true);
+    }
+
+    @Override
+    public DataSet parseOsm(ProgressMonitor progressMonitor) throws OsmTransferException {
+        // not implemented
+        return null;
+    }
+
+    /**
+     * Fetches user preferences, without explicit reason.
+     * @param monitor The progress monitor
+     * @return The user preferences
+     * @throws OsmTransferException if something goes wrong
+     */
+    public Map<String, String> fetchUserPreferences(ProgressMonitor monitor) throws OsmTransferException {
+        return fetchUserPreferences(monitor, null);
+    }
+
+    /**
+     * Fetches user info, with an explicit reason.
+     * @param monitor The progress monitor
+     * @param reason The reason to show on console. Can be {@code null} if no reason is given
+     * @return The user info
+     * @throws OsmTransferException if something goes wrong
+     */
+    public Map<String, String> fetchUserPreferences(ProgressMonitor monitor, String reason) throws OsmTransferException {
+        try {
+            monitor.beginTask("");
+            monitor.indeterminateSubTask(tr("Reading user preferences ..."));
+            try (InputStream in = getInputStream("user/preferences", monitor.createSubTaskMonitor(1, true), reason)) {
+                return buildFromXML(Utils.parseSafeDOM(in));
+            }
+        } catch (OsmTransferException e) {
+            throw e;
+        } catch (IOException | ParserConfigurationException | SAXException e) {
+            throw new OsmTransferException(e);
+        } finally {
+            monitor.finishTask();
+        }
+    }
+}