org.glassfish.grizzly.websockets.DefaultWebSocket Maven / Gradle / Ivy
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package org.glassfish.grizzly.websockets;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.security.Principal;
import java.util.logging.Logger;
import javax.servlet.ServletInputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.glassfish.grizzly.Grizzly;
import org.glassfish.grizzly.filterchain.FilterChainContext;
import org.glassfish.grizzly.http.Cookie;
import org.glassfish.grizzly.http.HttpRequestPacket;
import org.glassfish.grizzly.http.server.Request;
import org.glassfish.grizzly.http.server.Response;
import org.glassfish.grizzly.servlet.HttpServletRequestImpl;
import org.glassfish.grizzly.servlet.HttpServletResponseImpl;
import org.glassfish.grizzly.servlet.WebappContext;
import org.glassfish.grizzly.websockets.glassfish.GlassfishSupport;
@SuppressWarnings({"StringContatenationInLoop"})
public class DefaultWebSocket extends SimpleWebSocket {
private static final Logger LOGGER = Grizzly.logger(DefaultWebSocket.class);
protected final HttpServletRequest servletRequest;
public DefaultWebSocket(final ProtocolHandler protocolHandler,
final HttpRequestPacket request,
final WebSocketListener... listeners) {
super(protocolHandler, listeners);
final FilterChainContext ctx = protocolHandler.getFilterChainContext();
if (ctx != null) { // ctx != null means server side.
final WSRequestImpl grizzlyRequest = new WSRequestImpl();
final Response grizzlyResponse = grizzlyRequest.getResponse();
grizzlyRequest.initialize(request, ctx, null);
grizzlyResponse.initialize(grizzlyRequest, request.getResponse(),
ctx, null, null);
try {
// Has to be called before servlet request/response wrappers initialization
grizzlyRequest.parseSessionId();
final WSServletRequestImpl grizzlyServletRequest =
new WSServletRequestImpl();
final WSServletResponseImpl grizzlyServletResponse =
new WSServletResponseImpl();
final WebSocketMappingData mappingData =
protocolHandler.getMappingData();
grizzlyServletRequest.initialize(grizzlyRequest,
grizzlyServletResponse, mappingData);
grizzlyServletResponse.initialize(grizzlyResponse, grizzlyServletRequest);
servletRequest = grizzlyServletRequest;
} catch (IOException e) {
throw new IllegalStateException("Unexpected exception", e);
}
} else {
servletRequest = null;
}
}
/**
* Returns the upgrade request for this WebSocket.
*
* @return the upgrade request for this {@link WebSocket}. This method
* may return null depending on the context under which this
* {@link WebSocket} was created.
*/
public HttpServletRequest getUpgradeRequest() {
return servletRequest;
}
// ----------------------------------------------------------- Inner Classes
private static class WSRequestImpl extends Request {
public WSRequestImpl() {
super(new WSResponseImpl());
}
/**
* Make method visible for websockets
*/
@Override
protected void parseSessionId() {
// Try to get session id from request-uri
super.parseSessionId();
// Try to get session id from cookie
Cookie[] parsedCookies = getCookies();
if (parsedCookies != null) {
final String sessionCookieNameLocal = obtainSessionCookieName();
for (Cookie c : parsedCookies) {
if (sessionCookieNameLocal.equals(c.getName())) {
setRequestedSessionId(c.getValue());
setRequestedSessionCookie(true);
break;
}
}
}
}
} // END WSRequestImpl
private static class WSResponseImpl extends Response {
public WSResponseImpl() {
}
} // END WSResponseImpl
private static class WSServletRequestImpl extends HttpServletRequestImpl {
private GlassfishSupport glassfishSupport;
private String pathInfo;
private String servletPath;
private String contextPath;
private boolean isUserPrincipalUpdated;
private BufferedReader reader;
public void initialize(final Request request,
final HttpServletResponseImpl servletResponse,
final WebSocketMappingData mappingData) throws IOException {
if (mappingData != null) {
updatePaths(mappingData);
} else {
contextPath = request.getContextPath();
}
if (mappingData != null && mappingData.isGlassfish) {
glassfishSupport = new GlassfishSupport(mappingData.context,
mappingData.wrapper, this);
} else {
glassfishSupport = new GlassfishSupport();
}
super.initialize(request, servletResponse,
new WebappContext("web-socket-ctx", contextPath));
}
@Override
public ServletInputStream getInputStream() throws IOException {
if (usingReader)
throw new IllegalStateException("Illegal attempt to call getInputStream() after getReader() has already been called.");
usingInputStream = true;
return Utils.NULL_SERVLET_INPUT_STREAM;
}
@Override
public BufferedReader getReader() throws IOException {
if (usingInputStream)
throw new IllegalStateException("Illegal attempt to call getReader() after getInputStream() has already been called.");
usingReader = true;
//inputBuffer.checkConverter();
if (reader == null) {
reader = new BufferedReader(Utils.NULL_READER);
}
return reader;
}
@Override
public HttpSession getSession(boolean create) {
if (glassfishSupport.isValid()) {
return glassfishSupport.getSession(create);
}
return super.getSession(create);
}
@Override
public boolean isUserInRole(String role) {
if (glassfishSupport.isValid()) {
return glassfishSupport.isUserInRole(role);
}
return super.isUserInRole(role);
}
@Override
public Principal getUserPrincipal() {
checkGlassfishAuth();
return super.getUserPrincipal();
}
@Override
public String getRemoteUser() {
checkGlassfishAuth();
return super.getRemoteUser();
}
@Override
public String getAuthType() {
checkGlassfishAuth();
return super.getAuthType();
}
@Override
public String getContextPath() {
return contextPath;
}
@Override
public String getServletPath() {
return servletPath;
}
@Override
public String getPathInfo() {
return pathInfo;
}
private void updatePaths(final WebSocketMappingData mappingData) {
pathInfo = mappingData.pathInfo.toString();
servletPath = mappingData.wrapperPath.toString();
contextPath = mappingData.contextPath.toString();
}
private void checkGlassfishAuth() {
if (glassfishSupport.isValid() && !isUserPrincipalUpdated) {
isUserPrincipalUpdated = true;
glassfishSupport.updateUserPrincipal(WSServletRequestImpl.this.request);
}
}
} // END WSServletRequestImpl
private static class WSServletResponseImpl extends HttpServletResponseImpl {
private PrintWriter writer;
@Override
public PrintWriter getWriter() throws IOException {
if (usingOutputStream)
throw new IllegalStateException("Illegal attempt to call getWriter() after getOutputStream has already been called.");
usingWriter = true;
if (writer == null) {
writer = new PrintWriter(Utils.NULL_WRITER);
}
return writer;
}
@Override
public ServletOutputStream getOutputStream() throws IOException {
if (usingWriter)
throw new IllegalStateException("Illegal attempt to call getOutputStream() after getWriter() has already been called.");
usingOutputStream = true;
return Utils.NULL_SERVLET_OUTPUT_STREAM;
}
} // END WSServletResponseImpl
}
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