synchronized void gotFinalURI(String identifier, FreenetURI finalURI) {
UploadRequestStatus status = (UploadRequestStatus) requestsByIdentifier.get(identifier);
if (status == null) return; // Can happen during cancel etc.
if (status.getFinalURI() == null)
// No final URI set yet, put into the index.
uploadsByFinalURI.put(finalURI, status);
status.setFinalURI(finalURI);
}
synchronized void addDownload(DownloadRequestStatus status) {
RequestStatus old = requestsByIdentifier.put(status.getIdentifier(), status);
if (logMINOR) Logger.minor(this, "Starting download " + status.getIdentifier());
if (old == status) return;
if (old != null) downloads.remove(old);
downloads.add(status);
downloadsByURI.put(status.getURI(), status);
}
synchronized void addUpload(UploadRequestStatus status) {
RequestStatus old = requestsByIdentifier.put(status.getIdentifier(), status);
if (old == status) return;
if (logMINOR) Logger.minor(this, "Starting upload " + status.getIdentifier());
if (old != null) uploads.remove(old);
uploads.add(status);
FreenetURI uri = status.getURI();
if (uri != null) uploadsByFinalURI.put(uri, status);
}
/**
* Restart a download. Caller should call ,false first, at which point we setStarted, and ,true
* when it has actually started (a race condition means we don't setStarted at that point since
* it's possible the success/failure callback might happen first).
*
* @param redirect If non-null, the request followed a redirect.
*/
public synchronized void updateStarted(String identifier, FreenetURI redirect) {
DownloadRequestStatus status = (DownloadRequestStatus) requestsByIdentifier.get(identifier);
if (status == null) return; // Can happen during cancel etc.
status.restart(false);
if (redirect != null) {
downloadsByURI.remove(status.getURI());
status.redirect(redirect);
downloadsByURI.put(redirect, status);
}
}
private void sendMethodNotAllowed(String method, boolean shouldDisconnect)
throws ToadletContextClosedException, IOException {
if (closed) throw new ToadletContextClosedException();
MultiValueTable<String, String> mvt = new MultiValueTable<String, String>();
mvt.put("Allow", "GET, PUT");
sendError(
sockOutputStream,
405,
"Method Not Allowed",
l10n("methodNotAllowed"),
shouldDisconnect,
mvt);
}
synchronized void finishedUpload(
String identifier,
boolean success,
FreenetURI finalURI,
InsertExceptionMode failureCode,
String failureReasonShort,
String failureReasonLong) {
UploadRequestStatus status = (UploadRequestStatus) requestsByIdentifier.get(identifier);
if (status == null) return; // Can happen during cancel etc.
if (status.getFinalURI() == null && finalURI != null)
// No final URI set yet, put into the index.
uploadsByFinalURI.put(finalURI, status);
status.setFinished(success, finalURI, failureCode, failureReasonShort, failureReasonLong);
}
/** Handle an incoming connection. Blocking, obviously. */
public static void handle(Socket sock, ToadletContainer container, PageMaker pageMaker) {
try {
InputStream is = new BufferedInputStream(sock.getInputStream(), 4096);
LineReadingInputStream lis = new LineReadingInputStream(is);
while (true) {
String firstLine = lis.readLine(32768, 128, false); // ISO-8859-1 or US-ASCII, _not_ UTF-8
if (firstLine == null) {
sock.close();
return;
} else if (firstLine.equals("")) {
continue;
}
boolean logMINOR = Logger.shouldLog(Logger.MINOR, ToadletContextImpl.class);
if (logMINOR) Logger.minor(ToadletContextImpl.class, "first line: " + firstLine);
String[] split = firstLine.split(" ");
if (split.length != 3)
throw new ParseException(
"Could not parse request line (split.length=" + split.length + "): " + firstLine);
if (!split[2].startsWith("HTTP/1."))
throw new ParseException("Unrecognized protocol " + split[2]);
URI uri;
try {
uri = URIPreEncoder.encodeURI(split[1]).normalize();
if (logMINOR)
Logger.minor(
ToadletContextImpl.class,
"URI: "
+ uri
+ " path "
+ uri.getPath()
+ " host "
+ uri.getHost()
+ " frag "
+ uri.getFragment()
+ " port "
+ uri.getPort()
+ " query "
+ uri.getQuery()
+ " scheme "
+ uri.getScheme());
} catch (URISyntaxException e) {
sendURIParseError(sock.getOutputStream(), true, e);
return;
}
String method = split[0];
MultiValueTable<String, String> headers = new MultiValueTable<String, String>();
while (true) {
String line = lis.readLine(32768, 128, false); // ISO-8859 or US-ASCII, not UTF-8
if (line == null) {
sock.close();
return;
}
// System.out.println("Length="+line.length()+": "+line);
if (line.length() == 0) break;
int index = line.indexOf(':');
if (index < 0) {
throw new ParseException("Missing ':' in request header field");
}
String before = line.substring(0, index).toLowerCase();
String after = line.substring(index + 1);
after = after.trim();
headers.put(before, after);
}
boolean disconnect =
shouldDisconnectAfterHandled(split[2].equals("HTTP/1.0"), headers)
|| !container.enablePersistentConnections();
boolean allowPost = container.allowPosts();
BucketFactory bf = container.getBucketFactory();
ToadletContextImpl ctx = new ToadletContextImpl(sock, headers, bf, pageMaker, container);
ctx.shouldDisconnect = disconnect;
/*
* copy the data into a bucket now,
* before we go into the redirect loop
*/
Bucket data;
boolean methodIsConfigurable = true;
String slen = headers.get("content-length");
if (METHODS_MUST_HAVE_DATA.contains(method)) {
// <method> must have data
methodIsConfigurable = false;
if (slen == null) {
ctx.shouldDisconnect = true;
ctx.sendReplyHeaders(400, "Bad Request", null, null, -1);
return;
}
} else if (METHODS_CANNOT_HAVE_DATA.contains(method)) {
// <method> can not have data
methodIsConfigurable = false;
if (slen != null) {
ctx.shouldDisconnect = true;
ctx.sendReplyHeaders(400, "Bad Request", null, null, -1);
return;
}
}
if (slen != null) {
long len;
try {
len = Integer.parseInt(slen);
if (len < 0) throw new NumberFormatException("content-length less than 0");
} catch (NumberFormatException e) {
ctx.shouldDisconnect = true;
ctx.sendReplyHeaders(400, "Bad Request", null, null, -1);
return;
}
if (allowPost && ((!container.publicGatewayMode()) || ctx.isAllowedFullAccess())) {
data = bf.makeBucket(len);
BucketTools.copyFrom(data, is, len);
} else {
FileUtil.skipFully(is, len);
if (method.equals("POST")) {
ctx.sendMethodNotAllowed("POST", true);
} else {
sendError(
sock.getOutputStream(),
403,
"Forbidden",
"Content not allowed in this configuration",
true,
null);
}
ctx.close();
return;
}
} else {
// we're not doing to use it, but we have to keep
// the compiler happy
data = null;
}
if (!container.enableExtendedMethodHandling()) {
if (!METHODS_RESTRICTED_MODE.contains(method)) {
sendError(
sock.getOutputStream(),
403,
"Forbidden",
"Method not allowed in this configuration",
true,
null);
return;
}
}
// Handle it.
try {
boolean redirect = true;
while (redirect) {
// don't go around the loop unless set explicitly
redirect = false;
Toadlet t;
try {
t = container.findToadlet(uri);
} catch (PermanentRedirectException e) {
Toadlet.writePermanentRedirect(ctx, "Found elsewhere", e.newuri.toASCIIString());
break;
}
if (t == null) {
ctx.sendNoToadletError(ctx.shouldDisconnect);
break;
}
// if the Toadlet does not support the method, we don't need to parse the data
// also due this pre check a 'NoSuchMethodException' should never appear
if (!(t.findSupportedMethods().contains(method))) {
ctx.sendMethodNotAllowed(method, ctx.shouldDisconnect);
break;
}
HTTPRequestImpl req = new HTTPRequestImpl(uri, data, ctx, method);
try {
String methodName = "handleMethod" + method;
try {
Class<? extends Toadlet> c = t.getClass();
Method m = c.getMethod(methodName, HANDLE_PARAMETERS);
if (methodIsConfigurable) {
AllowData anno = m.getAnnotation(AllowData.class);
if (anno == null) {
if (data != null) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
"Content not allowed",
true,
null);
ctx.close();
return;
}
} else if (anno.value()) {
if (data == null) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
"Missing Content",
true,
null);
ctx.close();
return;
}
}
}
ctx.setActiveToadlet(t);
Object arglist[] = new Object[] {uri, req, ctx};
m.invoke(t, arglist);
} catch (InvocationTargetException ite) {
throw ite.getCause();
}
} catch (RedirectException re) {
uri = re.newuri;
redirect = true;
} finally {
req.freeParts();
}
}
if (ctx.shouldDisconnect) {
sock.close();
return;
}
} finally {
if (data != null) data.free();
}
}
} catch (ParseException e) {
try {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("parseErrorWithError", "error", e.getMessage()),
true,
null);
} catch (IOException e1) {
// Ignore
}
} catch (TooLongException e) {
try {
sendError(
sock.getOutputStream(), 400, "Bad Request", l10n("headersLineTooLong"), true, null);
} catch (IOException e1) {
// Ignore
}
} catch (IOException e) {
// ignore and return
} catch (ToadletContextClosedException e) {
Logger.error(
ToadletContextImpl.class, "ToadletContextClosedException while handling connection!");
} catch (Throwable t) {
Logger.error(ToadletContextImpl.class, "Caught error: " + t + " handling socket", t);
try {
sendError(sock.getOutputStream(), 500, "Internal Error", t.toString(), true, null);
} catch (IOException e1) {
// ignore and return
}
}
}
static void sendReplyHeaders(
OutputStream sockOutputStream,
int replyCode,
String replyDescription,
MultiValueTable<String, String> mvt,
String mimeType,
long contentLength,
Date mTime,
boolean disconnect)
throws IOException {
// Construct headers
if (mvt == null) mvt = new MultiValueTable<String, String>();
if (mimeType != null)
if (mimeType.equalsIgnoreCase("text/html")) {
mvt.put("content-type", mimeType + "; charset=UTF-8");
} else {
mvt.put("content-type", mimeType);
}
if (contentLength >= 0) mvt.put("content-length", Long.toString(contentLength));
String expiresTime;
if (mTime == null) {
expiresTime = "Thu, 01 Jan 1970 00:00:00 GMT";
} else {
// use an expiry time of 1 day, somewhat arbitrarily
expiresTime = TimeUtil.makeHTTPDate(mTime.getTime() + (24 * 60 * 60 * 1000));
}
mvt.put("expires", expiresTime);
String nowString = TimeUtil.makeHTTPDate(System.currentTimeMillis());
String lastModString;
if (mTime == null) {
lastModString = nowString;
} else {
lastModString = TimeUtil.makeHTTPDate(mTime.getTime());
}
mvt.put("last-modified", lastModString);
mvt.put("date", nowString);
if (mTime == null) {
mvt.put("pragma", "no-cache");
mvt.put(
"cache-control",
"max-age=0, must-revalidate, no-cache, no-store, post-check=0, pre-check=0");
}
if (disconnect) mvt.put("connection", "close");
else mvt.put("connection", "keep-alive");
StringBuilder buf = new StringBuilder(1024);
buf.append("HTTP/1.1 ");
buf.append(replyCode);
buf.append(' ');
buf.append(replyDescription);
buf.append("\r\n");
for (Enumeration<String> e = mvt.keys(); e.hasMoreElements(); ) {
String key = e.nextElement();
Object[] list = mvt.getArray(key);
key = fixKey(key);
for (int i = 0; i < list.length; i++) {
String val = (String) list[i];
buf.append(key);
buf.append(": ");
buf.append(val);
buf.append("\r\n");
}
}
buf.append("\r\n");
sockOutputStream.write(buf.toString().getBytes("US-ASCII"));
}
/** Handle an incoming connection. Blocking, obviously. */
public static void handle(Socket sock, ToadletContainer container, PageMaker pageMaker) {
try {
InputStream is = new BufferedInputStream(sock.getInputStream(), 4096);
LineReadingInputStream lis = new LineReadingInputStream(is);
while (true) {
String firstLine = lis.readLine(32768, 128, false); // ISO-8859-1 or US-ASCII, _not_ UTF-8
if (firstLine == null) {
sock.close();
return;
} else if (firstLine.equals("")) {
continue;
}
boolean logMINOR = Logger.shouldLog(Logger.MINOR, ToadletContextImpl.class);
if (logMINOR) Logger.minor(ToadletContextImpl.class, "first line: " + firstLine);
String[] split = firstLine.split(" ");
if (split.length != 3)
throw new ParseException(
"Could not parse request line (split.length=" + split.length + "): " + firstLine);
if (!split[2].startsWith("HTTP/1."))
throw new ParseException("Unrecognized protocol " + split[2]);
URI uri;
try {
uri = URIPreEncoder.encodeURI(split[1]).normalize();
if (logMINOR)
Logger.minor(
ToadletContextImpl.class,
"URI: "
+ uri
+ " path "
+ uri.getPath()
+ " host "
+ uri.getHost()
+ " frag "
+ uri.getFragment()
+ " port "
+ uri.getPort()
+ " query "
+ uri.getQuery()
+ " scheme "
+ uri.getScheme());
} catch (URISyntaxException e) {
sendURIParseError(sock.getOutputStream(), true, e);
return;
}
String method = split[0];
MultiValueTable<String, String> headers = new MultiValueTable<String, String>();
while (true) {
String line = lis.readLine(32768, 128, false); // ISO-8859 or US-ASCII, not UTF-8
if (line == null) {
sock.close();
return;
}
// System.out.println("Length="+line.length()+": "+line);
if (line.length() == 0) break;
int index = line.indexOf(':');
if (index < 0) {
throw new ParseException("Missing ':' in request header field");
}
String before = line.substring(0, index).toLowerCase();
String after = line.substring(index + 1);
after = after.trim();
headers.put(before, after);
}
boolean disconnect =
shouldDisconnectAfterHandled(split[2].equals("HTTP/1.0"), headers)
|| !container.enablePersistentConnections();
boolean allowPost = container.allowPosts();
BucketFactory bf = container.getBucketFactory();
ToadletContextImpl ctx = new ToadletContextImpl(sock, headers, bf, pageMaker, container);
ctx.shouldDisconnect = disconnect;
/*
* if we're handling a POST, copy the data into a bucket now,
* before we go into the redirect loop
*/
Bucket data;
if (method.equals("POST")) {
String slen = headers.get("content-length");
if (slen == null) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("noContentLengthInPOST"),
true,
null);
return;
}
long len;
try {
len = Integer.parseInt(slen);
if (len < 0) throw new NumberFormatException("content-length less than 0");
} catch (NumberFormatException e) {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("cannotParseContentLengthWithError", "error", e.toString()),
true,
null);
return;
}
if (allowPost && ((!container.publicGatewayMode()) || ctx.isAllowedFullAccess())) {
data = bf.makeBucket(len);
BucketTools.copyFrom(data, is, len);
} else {
FileUtil.skipFully(is, len);
ctx.sendMethodNotAllowed("POST", true);
ctx.close();
return;
}
} else {
// we're not doing to use it, but we have to keep
// the compiler happy
data = null;
}
// Handle it.
try {
boolean redirect = true;
while (redirect) {
// don't go around the loop unless set explicitly
redirect = false;
Toadlet t;
try {
t = container.findToadlet(uri);
} catch (PermanentRedirectException e) {
Toadlet.writePermanentRedirect(ctx, "Found elsewhere", e.newuri.toASCIIString());
break;
}
if (t == null) {
ctx.sendNoToadletError(ctx.shouldDisconnect);
break;
}
HTTPRequestImpl req = new HTTPRequestImpl(uri, data, ctx, method);
try {
if (method.equals("GET")) {
ctx.setActiveToadlet(t);
t.handleGet(uri, req, ctx);
ctx.close();
} else if (method.equals("POST")) {
ctx.setActiveToadlet(t);
t.handlePost(uri, req, ctx);
} else {
ctx.sendMethodNotAllowed(method, ctx.shouldDisconnect);
ctx.close();
}
} catch (RedirectException re) {
uri = re.newuri;
redirect = true;
} finally {
req.freeParts();
}
}
if (ctx.shouldDisconnect) {
sock.close();
return;
}
} finally {
if (data != null) data.free();
}
}
} catch (ParseException e) {
try {
sendError(
sock.getOutputStream(),
400,
"Bad Request",
l10n("parseErrorWithError", "error", e.getMessage()),
true,
null);
} catch (IOException e1) {
// Ignore
}
} catch (TooLongException e) {
try {
sendError(
sock.getOutputStream(), 400, "Bad Request", l10n("headersLineTooLong"), true, null);
} catch (IOException e1) {
// Ignore
}
} catch (IOException e) {
// ignore and return
} catch (ToadletContextClosedException e) {
Logger.error(
ToadletContextImpl.class, "ToadletContextClosedException while handling connection!");
} catch (Throwable t) {
Logger.error(ToadletContextImpl.class, "Caught error: " + t + " handling socket", t);
try {
sendError(sock.getOutputStream(), 500, "Internal Error", t.toString(), true, null);
} catch (IOException e1) {
// ignore and return
}
}
}
public void handleMethodPOST(URI uri, HTTPRequest request, ToadletContext ctx)
throws ToadletContextClosedException, IOException, RedirectException {
if (!ctx.checkFullAccess(this)) return;
// User requested reset to defaults, so present confirmation page.
if (request.isPartSet("confirm-reset-to-defaults")) {
PageNode page = ctx.getPageMaker().getPageNode(l10n("confirmResetTitle"), ctx);
HTMLNode pageNode = page.outer;
HTMLNode contentNode = page.content;
HTMLNode content =
ctx.getPageMaker()
.getInfobox(
"infobox-warning", l10n("confirmResetTitle"), contentNode, "reset-confirm", true);
content.addChild("#", l10n("confirmReset"));
HTMLNode formNode = ctx.addFormChild(content, path(), "yes-button");
String subconfig = request.getPartAsStringFailsafe("subconfig", MAX_PARAM_VALUE_SIZE);
formNode.addChild(
"input",
new String[] {"type", "name", "value"},
new String[] {"hidden", "subconfig", subconfig});
// Persist visible fields so that they are reset to default or
// unsaved changes are persisted.
for (String part : request.getParts()) {
if (part.startsWith(subconfig)) {
formNode.addChild(
"input",
new String[] {"type", "name", "value"},
new String[] {
"hidden", part, request.getPartAsStringFailsafe(part, MAX_PARAM_VALUE_SIZE)
});
}
}
formNode.addChild(
"input",
new String[] {"type", "name", "value"},
new String[] {
"submit", "reset-to-defaults", NodeL10n.getBase().getString("Toadlet.yes")
});
formNode.addChild(
"input",
new String[] {"type", "name", "value"},
new String[] {
"submit", "decline-default-reset", NodeL10n.getBase().getString("Toadlet.no")
});
writeHTMLReply(ctx, 200, "OK", pageNode.generate());
return;
}
// Returning from directory selector with a selection or declining
// resetting settings to defaults.
// Re-render config page with any changes made in the selector and/or
// persisting values changed but
// not applied.
if (request.isPartSet(LocalFileBrowserToadlet.selectDir)
|| request.isPartSet("decline-default-reset")) {
handleMethodGET(uri, request, ctx);
return;
}
// Entering directory selector from config page.
// This would be two loops if it checked for a redirect
// (key.startsWith("select-directory.")) before
// constructing params string. It always constructs it, then redirects
// if it turns out to be needed.
boolean directorySelector = false;
StringBuilder paramsBuilder = new StringBuilder();
paramsBuilder.append('?');
String value;
for (String key : request.getParts()) {
// Prepare parts for page selection redirect:
// Extract option and put into "select-for"; preserve others.
value = request.getPartAsStringFailsafe(key, MAX_PARAM_VALUE_SIZE);
if (key.startsWith("select-directory.")) {
paramsBuilder
.append("select-for=")
.append(URLEncoder.encode(key.substring("select-directory.".length()), true))
.append('&');
directorySelector = true;
} else {
paramsBuilder
.append(URLEncoder.encode(key, true))
.append('=')
.append(URLEncoder.encode(value, true))
.append('&');
}
}
String params = paramsBuilder.toString();
if (directorySelector) {
MultiValueTable<String, String> headers = new MultiValueTable<String, String>(1);
// params ends in &. Download directory browser starts in default
// download directory.
headers.put(
"Location",
directoryBrowserPath + params + "path=" + core.getDownloadsDir().getAbsolutePath());
ctx.sendReplyHeaders(302, "Found", headers, null, 0);
return;
}
StringBuilder errbuf = new StringBuilder();
boolean logMINOR = Logger.shouldLog(LogLevel.MINOR, this);
String prefix = request.getPartAsStringFailsafe("subconfig", MAX_PARAM_VALUE_SIZE);
if (logMINOR) {
Logger.minor(this, "Current config prefix is " + prefix);
}
boolean resetToDefault = request.isPartSet("reset-to-defaults");
if (resetToDefault && logMINOR) {
Logger.minor(this, "Resetting to defaults");
}
for (Option<?> o : config.get(prefix).getOptions()) {
String configName = o.getName();
if (logMINOR) {
Logger.minor(this, "Checking option " + prefix + '.' + configName);
}
// This ignores unrecognized parameters.
if (request.isPartSet(prefix + '.' + configName)) {
// Current subconfig is to be reset to default.
if (resetToDefault) {
// Disallow resetting fproxy port number to default as it
// might break the link to start fproxy on the system tray,
// shortcuts etc.
if (prefix.equals("fproxy") && configName.equals("port")) continue;
value = o.getDefault();
} else {
value = request.getPartAsStringFailsafe(prefix + '.' + configName, MAX_PARAM_VALUE_SIZE);
}
if (!(o.getValueDisplayString().equals(value))) {
if (logMINOR) {
Logger.minor(this, "Changing " + prefix + '.' + configName + " to " + value);
}
try {
o.setValue(value);
} catch (InvalidConfigValueException e) {
errbuf.append(o.getName()).append(' ').append(e.getMessage()).append('\n');
} catch (NodeNeedRestartException e) {
needRestart = true;
} catch (Exception e) {
errbuf.append(o.getName()).append(' ').append(e).append('\n');
Logger.error(this, "Caught " + e, e);
}
} else if (logMINOR) {
Logger.minor(this, prefix + '.' + configName + " not changed");
}
}
}
// Wrapper params
String wrapperConfigName = "wrapper.java.maxmemory";
if (request.isPartSet(wrapperConfigName)) {
value = request.getPartAsStringFailsafe(wrapperConfigName, MAX_PARAM_VALUE_SIZE);
if (!WrapperConfig.getWrapperProperty(wrapperConfigName).equals(value)) {
if (logMINOR) {
Logger.minor(this, "Setting " + wrapperConfigName + " to " + value);
}
WrapperConfig.setWrapperProperty(wrapperConfigName, value);
}
}
config.store();
PageNode page = ctx.getPageMaker().getPageNode(l10n("appliedTitle"), ctx);
HTMLNode pageNode = page.outer;
HTMLNode contentNode = page.content;
if (errbuf.length() == 0) {
HTMLNode content =
ctx.getPageMaker()
.getInfobox(
"infobox-success",
l10n("appliedTitle"),
contentNode,
"configuration-applied",
true);
content.addChild("#", l10n("appliedSuccess"));
if (needRestart) {
content.addChild("br");
content.addChild("#", l10n("needRestart"));
if (node.isUsingWrapper()) {
content.addChild("br");
HTMLNode restartForm = ctx.addFormChild(content, "/", "restartForm");
restartForm.addChild(
"input", //
new String[] {"type", "name"}, //
new String[] {"hidden", "restart"});
restartForm.addChild(
"input", //
new String[] {"type", "name", "value"}, //
new String[] {
"submit",
"restart2", //
l10n("restartNode")
});
}
if (needRestartUserAlert == null) {
needRestartUserAlert = new NeedRestartUserAlert(ctx.getFormPassword());
ctx.getAlertManager().register(needRestartUserAlert);
}
}
} else {
HTMLNode content =
ctx.getPageMaker()
.getInfobox(
"infobox-error",
l10n("appliedFailureTitle"),
contentNode,
"configuration-error",
true)
.addChild("div", "class", "infobox-content");
content.addChild("#", l10n("appliedFailureExceptions"));
content.addChild("br");
content.addChild("#", errbuf.toString());
}
HTMLNode content =
ctx.getPageMaker()
.getInfobox(
"infobox-normal",
l10n("possibilitiesTitle"),
contentNode,
"configuration-possibilities",
false);
content.addChild(
"a",
new String[] {"href", "title"},
new String[] {path(), l10n("shortTitle")},
l10n("returnToNodeConfig"));
content.addChild("br");
addHomepageLink(content);
writeHTMLReply(ctx, 200, "OK", pageNode.generate());
}