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diff --git a/subsonic-main/src/main/java/net/sourceforge/subsonic/controller/MainController.java b/subsonic-main/src/main/java/net/sourceforge/subsonic/controller/MainController.java
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+/*
+ This file is part of Subsonic.
+
+ Subsonic is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ Subsonic is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Subsonic.  If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright 2009 (C) Sindre Mehus
+ */
+package net.sourceforge.subsonic.controller;
+
+import net.sourceforge.subsonic.domain.CoverArtScheme;
+import net.sourceforge.subsonic.domain.MediaFile;
+import net.sourceforge.subsonic.domain.Player;
+import net.sourceforge.subsonic.domain.UserSettings;
+import net.sourceforge.subsonic.service.AdService;
+import net.sourceforge.subsonic.service.MediaFileService;
+import net.sourceforge.subsonic.service.RatingService;
+import net.sourceforge.subsonic.service.PlayerService;
+import net.sourceforge.subsonic.service.SecurityService;
+import net.sourceforge.subsonic.service.SettingsService;
+import org.apache.commons.lang.StringUtils;
+import org.springframework.web.bind.ServletRequestUtils;
+import org.springframework.web.servlet.ModelAndView;
+import org.springframework.web.servlet.mvc.ParameterizableViewController;
+import org.springframework.web.servlet.view.RedirectView;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Controller for the main page.
+ *
+ * @author Sindre Mehus
+ */
+public class MainController extends ParameterizableViewController {
+
+    private SecurityService securityService;
+    private PlayerService playerService;
+    private SettingsService settingsService;
+    private RatingService ratingService;
+    private MediaFileService mediaFileService;
+    private AdService adService;
+
+    @Override
+    protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
+        Map<String, Object> map = new HashMap<String, Object>();
+
+        Player player = playerService.getPlayer(request, response);
+        List<MediaFile> mediaFiles = getMediaFiles(request);
+
+        if (mediaFiles.isEmpty()) {
+            return new ModelAndView(new RedirectView("notFound.view"));
+        }
+
+        MediaFile dir = mediaFiles.get(0);
+        if (dir.isFile()) {
+            dir = mediaFileService.getParentOf(dir);
+        }
+
+        // Redirect if root directory.
+        if (mediaFileService.isRoot(dir)) {
+            return new ModelAndView(new RedirectView("home.view?"));
+        }
+
+        List<MediaFile> children = mediaFiles.size() == 1 ? mediaFileService.getChildrenOf(dir, true, true, true) : getMultiFolderChildren(mediaFiles);
+        String username = securityService.getCurrentUsername(request);
+        UserSettings userSettings = settingsService.getUserSettings(username);
+
+        mediaFileService.populateStarredDate(dir, username);
+        mediaFileService.populateStarredDate(children, username);
+
+        map.put("dir", dir);
+        map.put("ancestors", getAncestors(dir));
+        map.put("children", children);
+        map.put("artist", guessArtist(children));
+        map.put("album", guessAlbum(children));
+        map.put("player", player);
+        map.put("user", securityService.getCurrentUser(request));
+        map.put("multipleArtists", isMultipleArtists(children));
+        map.put("visibility", userSettings.getMainVisibility());
+        map.put("showAlbumYear", settingsService.isSortAlbumsByYear());
+        map.put("updateNowPlaying", request.getParameter("updateNowPlaying") != null);
+        map.put("partyMode", userSettings.isPartyModeEnabled());
+        map.put("brand", settingsService.getBrand());
+        if (!settingsService.isLicenseValid()) {
+            map.put("ad", adService.getAd());
+        }
+
+        try {
+            MediaFile parent = mediaFileService.getParentOf(dir);
+            map.put("parent", parent);
+            map.put("navigateUpAllowed", !mediaFileService.isRoot(parent));
+        } catch (SecurityException x) {
+            // Happens if Podcast directory is outside music folder.
+        }
+
+        Integer userRating = ratingService.getRatingForUser(username, dir);
+        Double averageRating = ratingService.getAverageRating(dir);
+
+        if (userRating == null) {
+            userRating = 0;
+        }
+
+        if (averageRating == null) {
+            averageRating = 0.0D;
+        }
+
+        map.put("userRating", 10 * userRating);
+        map.put("averageRating", Math.round(10.0D * averageRating));
+        map.put("starred", mediaFileService.getMediaFileStarredDate(dir.getId(), username) != null);
+
+        CoverArtScheme scheme = player.getCoverArtScheme();
+        if (scheme != CoverArtScheme.OFF) {
+            List<MediaFile> coverArts = getCoverArts(dir, children);
+            int size = coverArts.size() > 1 ? scheme.getSize() : scheme.getSize() * 2;
+            map.put("coverArts", coverArts);
+            map.put("coverArtSize", size);
+            if (coverArts.isEmpty() && dir.isAlbum()) {
+                map.put("showGenericCoverArt", true);
+            }
+        }
+
+        setPreviousAndNextAlbums(dir, map);
+
+        ModelAndView result = super.handleRequestInternal(request, response);
+        result.addObject("model", map);
+        return result;
+    }
+
+    private List<MediaFile> getMediaFiles(HttpServletRequest request) {
+        List<MediaFile> mediaFiles = new ArrayList<MediaFile>();
+        for (String path : ServletRequestUtils.getStringParameters(request, "path")) {
+            MediaFile mediaFile = mediaFileService.getMediaFile(path);
+            if (mediaFile != null) {
+                mediaFiles.add(mediaFile);
+            }
+        }
+        for (int id : ServletRequestUtils.getIntParameters(request, "id")) {
+            MediaFile mediaFile = mediaFileService.getMediaFile(id);
+            if (mediaFile != null) {
+                mediaFiles.add(mediaFile);
+            }
+        }
+        return mediaFiles;
+    }
+
+    private String guessArtist(List<MediaFile> children) {
+        for (MediaFile child : children) {
+            if (child.isFile() && child.getArtist() != null) {
+                return child.getArtist();
+            }
+        }
+        return null;
+    }
+
+    private String guessAlbum(List<MediaFile> children) {
+        for (MediaFile child : children) {
+            if (child.isFile() && child.getArtist() != null) {
+                return child.getAlbumName();
+            }
+        }
+        return null;
+    }
+
+    private List<MediaFile> getCoverArts(MediaFile dir, List<MediaFile> children) throws IOException {
+        int limit = settingsService.getCoverArtLimit();
+        if (limit == 0) {
+            limit = Integer.MAX_VALUE;
+        }
+
+        List<MediaFile> coverArts = new ArrayList<MediaFile>();
+        if (dir.isAlbum() && dir.getCoverArtPath() != null) {
+            coverArts.add(dir);
+        } else {
+            for (MediaFile child : children) {
+                if (child.isAlbum()) {
+                    if (child.getCoverArtPath() != null) {
+                        coverArts.add(child);
+                    }
+                    if (coverArts.size() > limit) {
+                        break;
+                    }
+                }
+            }
+        }
+        return coverArts;
+    }
+
+    private List<MediaFile> getMultiFolderChildren(List<MediaFile> mediaFiles) throws IOException {
+        List<MediaFile> result = new ArrayList<MediaFile>();
+        for (MediaFile mediaFile : mediaFiles) {
+            if (mediaFile.isFile()) {
+                mediaFile = mediaFileService.getParentOf(mediaFile);
+            }
+            result.addAll(mediaFileService.getChildrenOf(mediaFile, true, true, true));
+        }
+        return result;
+    }
+
+    private List<MediaFile> getAncestors(MediaFile dir) throws IOException {
+        LinkedList<MediaFile> result = new LinkedList<MediaFile>();
+
+        try {
+            MediaFile parent = mediaFileService.getParentOf(dir);
+            while (parent != null && !mediaFileService.isRoot(parent)) {
+                result.addFirst(parent);
+                parent = mediaFileService.getParentOf(parent);
+            }
+        } catch (SecurityException x) {
+            // Happens if Podcast directory is outside music folder.
+        }
+        return result;
+    }
+
+    private void setPreviousAndNextAlbums(MediaFile dir, Map<String, Object> map) throws IOException {
+        MediaFile parent = mediaFileService.getParentOf(dir);
+
+        if (dir.isAlbum() && !mediaFileService.isRoot(parent)) {
+            List<MediaFile> sieblings = mediaFileService.getChildrenOf(parent, false, true, true);
+
+            int index = sieblings.indexOf(dir);
+            if (index > 0) {
+                map.put("previousAlbum", sieblings.get(index - 1));
+            }
+            if (index < sieblings.size() - 1) {
+                map.put("nextAlbum", sieblings.get(index + 1));
+            }
+        }
+    }
+
+    private boolean isMultipleArtists(List<MediaFile> children) {
+        // Collect unique artist names.
+        Set<String> artists = new HashSet<String>();
+        for (MediaFile child : children) {
+            if (child.getArtist() != null) {
+                artists.add(child.getArtist().toLowerCase());
+            }
+        }
+
+        // If zero or one artist, it is definitely not multiple artists.
+        if (artists.size() < 2) {
+            return false;
+        }
+
+        // Fuzzily compare artist names, allowing for some differences in spelling, whitespace etc.
+        List<String> artistList = new ArrayList<String>(artists);
+        for (String artist : artistList) {
+            if (StringUtils.getLevenshteinDistance(artist, artistList.get(0)) > 3) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public void setSecurityService(SecurityService securityService) {
+        this.securityService = securityService;
+    }
+
+    public void setPlayerService(PlayerService playerService) {
+        this.playerService = playerService;
+    }
+
+    public void setSettingsService(SettingsService settingsService) {
+        this.settingsService = settingsService;
+    }
+
+    public void setRatingService(RatingService ratingService) {
+        this.ratingService = ratingService;
+    }
+
+    public void setAdService(AdService adService) {
+        this.adService = adService;
+    }
+
+    public void setMediaFileService(MediaFileService mediaFileService) {
+        this.mediaFileService = mediaFileService;
+    }
+}