@Override
public void sendRedirect(String location) throws IOException {
if (isIncluding()) return;
if (location == null) throw new IllegalArgumentException();
if (!URIUtil.hasScheme(location)) {
StringBuilder buf = _channel.getRequest().getRootURL();
if (location.startsWith("/")) buf.append(location);
else {
String path = _channel.getRequest().getRequestURI();
String parent = (path.endsWith("/")) ? path : URIUtil.parentPath(path);
location = URIUtil.addPaths(parent, location);
if (location == null) throw new IllegalStateException("path cannot be above root");
if (!location.startsWith("/")) buf.append('/');
buf.append(location);
}
location = buf.toString();
HttpURI uri = new HttpURI(location);
String path = uri.getDecodedPath();
String canonical = URIUtil.canonicalPath(path);
if (canonical == null) throw new IllegalArgumentException();
if (!canonical.equals(path)) {
buf = _channel.getRequest().getRootURL();
buf.append(URIUtil.encodePath(canonical));
String param = uri.getParam();
if (param != null) {
buf.append(';');
buf.append(param);
}
String query = uri.getQuery();
if (query != null) {
buf.append('?');
buf.append(query);
}
String fragment = uri.getFragment();
if (fragment != null) {
buf.append('#');
buf.append(fragment);
}
location = buf.toString();
}
}
resetBuffer();
setHeader(HttpHeader.LOCATION, location);
setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
complete();
}
@Override
public String encodeURL(String url) {
final Request request = _channel.getRequest();
SessionManager sessionManager = request.getSessionManager();
if (sessionManager == null) return url;
HttpURI uri = null;
if (sessionManager.isCheckingRemoteSessionIdEncoding() && URIUtil.hasScheme(url)) {
uri = new HttpURI(url);
String path = uri.getPath();
path = (path == null ? "" : path);
int port = uri.getPort();
if (port < 0) port = HttpScheme.HTTPS.asString().equalsIgnoreCase(uri.getScheme()) ? 443 : 80;
if (!request.getServerName().equalsIgnoreCase(uri.getHost())
|| request.getServerPort() != port
|| !path.startsWith(
request
.getContextPath())) // TODO the root context path is "", with which every non null
// string starts
return url;
}
String sessionURLPrefix = sessionManager.getSessionIdPathParameterNamePrefix();
if (sessionURLPrefix == null) return url;
if (url == null) return null;
// should not encode if cookies in evidence
if (request.isRequestedSessionIdFromCookie()) {
int prefix = url.indexOf(sessionURLPrefix);
if (prefix != -1) {
int suffix = url.indexOf("?", prefix);
if (suffix < 0) suffix = url.indexOf("#", prefix);
if (suffix <= prefix) return url.substring(0, prefix);
return url.substring(0, prefix) + url.substring(suffix);
}
return url;
}
// get session;
HttpSession session = request.getSession(false);
// no session
if (session == null) return url;
// invalid session
if (!sessionManager.isValid(session)) return url;
String id = sessionManager.getNodeId(session);
if (uri == null) uri = new HttpURI(url);
// Already encoded
int prefix = url.indexOf(sessionURLPrefix);
if (prefix != -1) {
int suffix = url.indexOf("?", prefix);
if (suffix < 0) suffix = url.indexOf("#", prefix);
if (suffix <= prefix) return url.substring(0, prefix + sessionURLPrefix.length()) + id;
return url.substring(0, prefix + sessionURLPrefix.length()) + id + url.substring(suffix);
}
// edit the session
int suffix = url.indexOf('?');
if (suffix < 0) suffix = url.indexOf('#');
if (suffix < 0) {
return url
+ ((HttpScheme.HTTPS.is(uri.getScheme()) || HttpScheme.HTTP.is(uri.getScheme()))
&& uri.getPath() == null
? "/"
: "")
+ // if no path, insert the root path
sessionURLPrefix
+ id;
}
return url.substring(0, suffix)
+ ((HttpScheme.HTTPS.is(uri.getScheme()) || HttpScheme.HTTP.is(uri.getScheme()))
&& uri.getPath() == null
? "/"
: "")
+ // if no path so insert the root path
sessionURLPrefix
+ id
+ url.substring(suffix);
}
