// ConfigAppearance_p.java
// -----------------------
// part of YaCy
// (C) by Michael Peter Christen; mc@yacy.net
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
//
// This File is contributed by Alexander Schier
// last change: 29.12.2004
// extended by Michael Christen, 4.7.2008
//
//$LastChangedDate$
//$LastChangedRevision$
//$LastChangedBy$
//
// LICENSE
//
// This program 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 2 of the License, or
// (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import net.yacy.cora.document.id.DigestURL;
import net.yacy.cora.protocol.ClientIdentification;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.kelondro.util.FileUtils;
import net.yacy.search.Switchboard;
import net.yacy.search.SwitchboardConstants;
import net.yacy.server.serverObjects;
import net.yacy.server.serverSwitch;
import com.google.common.io.Files;
public class ConfigAppearance_p {
private final static String SKIN_FILENAME_FILTER = "^.*\\.css$";
public static serverObjects respond(@SuppressWarnings("unused") final RequestHeader header, final serverObjects post, final serverSwitch env) {
final serverObjects prop = new serverObjects();
final Switchboard sb = (Switchboard) env;
final String skinPath = new File(env.getDataPath(), env.getConfig("skinPath", SwitchboardConstants.SKINS_PATH_DEFAULT)).toString();
// Fallback
prop.put("currentskin", "");
prop.put("status", "0"); // nothing
List<String> skinFiles = FileUtils.getDirListing(skinPath, SKIN_FILENAME_FILTER);
if (skinFiles == null) {
return prop;
}
if (post != null) {
String selectedSkin = post.get("skin");
if (post.containsKey("use_button") && selectedSkin != null) {
/* Only change skin if filename is contained in list of filesnames
* read from the skin directory. This is very important to prevent
* directory traversal attacks!
*/
if (skinFiles.contains(selectedSkin)) {
changeSkin(sb, skinPath, selectedSkin);
}
}
if (post.containsKey("delete_button")) {
/* Only delete file if filename is contained in list of filesname
* read from the skin directory. This is very important to prevent
* directory traversal attacks!
*/
if (skinFiles.contains(selectedSkin)) {
final File skinfile = new File(skinPath, selectedSkin);
FileUtils.deletedelete(skinfile);
}
}
if (post.containsKey("install_button")) {
// load skin from URL
final String url = post.get("url");
final Iterator<String> it;
try {
final DigestURL u = new DigestURL(url);
it = FileUtils.strings(u.get(ClientIdentification.yacyInternetCrawlerAgent, null, null));
} catch (final IOException e) {
prop.put("status", "1");// unable to get URL
prop.put("status_url", url);
return prop;
}
try {
final File skinFile = new File(skinPath, url.substring(url.lastIndexOf('/'), url.length()));
final BufferedWriter bw = new BufferedWriter(new PrintWriter(new FileWriter(skinFile)));
while (it.hasNext()) {
bw.write(it.next() + "\n");
}
bw.close();
} catch (final IOException e) {
prop.put("status", "2");// error saving the skin
return prop;
}
if (post.containsKey("use_skin") && "on".equals(post.get("use_skin", ""))) {
changeSkin(sb, skinPath, url.substring(url.lastIndexOf('/'), url.length()));
}
}
if (post.containsKey("set_colors")) {
if (skinFiles.contains(selectedSkin)) {
changeSkin(sb, skinPath, selectedSkin);
}
for (final Map.Entry<String, String> entry: post.entrySet()) {
if (entry.getKey().startsWith("color_")) {
env.setConfig(entry.getKey(), "#" + entry.getValue());
}
}
}
}
// reread skins
skinFiles = FileUtils.getDirListing(skinPath, SKIN_FILENAME_FILTER);
Collections.sort(skinFiles);
int count = 0;
for (final String skinFile : skinFiles) {
if (skinFile.endsWith(".css")) {
prop.put("skinlist_" + count + "_file", skinFile);
prop.put("skinlist_" + count + "_name", skinFile.substring(0, skinFile.length() - 4));
count++;
}
}
prop.put("skinlist", count);
prop.putHTML("currentskin", env.getConfig("currentSkin", "default"));
// write colors from generic skin
Iterator<String> i = env.configKeys();
while (i.hasNext()) {
final String key = i.next();
if (key.startsWith("color_")) prop.put(key, env.getConfig(key, "#000000").substring(1));
}
return prop;
}
private static boolean changeSkin(final Switchboard sb, final String skinPath, final String skin) {
final File htdocsDir = new File(sb.getDataPath(SwitchboardConstants.HTDOCS_PATH, SwitchboardConstants.HTDOCS_PATH_DEFAULT), "env");
final File styleFile = new File(htdocsDir, "style.css");
final File skinFile = new File(skinPath, skin);
styleFile.getParentFile().mkdirs();
try {
Files.copy(skinFile, styleFile);
sb.setConfig("currentSkin", skin.substring(0, skin.length() - 4));
return true;
} catch (final IOException e) {
return false;
}
}
}