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package javaforce.webui;
import java.io.*;
import java.util.*;
import java.lang.reflect.*;
import javaforce.*;
import javaforce.access.*;
import javaforce.service.*;
import static javaforce.service.WebSocketHandler.*;
/** WebUI Server.
*
* WebUI uses a WebSocket to communicate between the server and client side to create
* rich interfaces that are programmed like standard desktop applications.
* No ugly javascript, css or html knowledge needed.
* WebUI is not dependant on AWT or any related APIs and should work with the Java base module.
*
* Browser support:
*
* Internet Explorer is NOT supported
* Edge 12+
* FireFox 28+
* Chrome 21+
*
* @author pquiring
*/
public class WebUIServer implements WebHandler, WebSocketHandler {
private WebServer web;
private WebUIHandler handler;
private AccessControl access;
//servlets
private HashMap<String, WebUIServletContext> servlets;
/** Enable debug log messages. */
public static boolean debug = false;
/** Start WebUI Server on non-secure port. */
public void start(WebUIHandler handler, int port) {
start(handler, port, null);
}
/** Start WebUI Server on secure port using provided SSL keys. */
public void start(WebUIHandler handler, int port, KeyMgmt keys) {
this.handler = handler;
if (web != null) stop();
clients = new ArrayList<WebUIClient>();
web = new WebServer();
web.setWebSocketHandler(this);
web.start(this, port, keys);
JFLog.log("WebUI Server starting on port " + port + "...");
}
/** Shutdown WebUIServer. */
public void stop() {
if (web != null) {
web.stop();
web = null;
}
clients = null;
}
/** Start support for WebUIServlets.
*/
public void startServlets() {
servlets = new HashMap<>();
}
/** startServlet on Servlet side.
* @see WebUIServletContext
*/
public void startServlet(WebUIServlet handler) {
this.handler = handler;
clients = new ArrayList<WebUIClient>();
web = new WebServer();
web.setWebSocketHandler(this);
//do not start web
}
/** stopServlet on Servlet side.
* @see WebUIServletContext
*/
public void stopServlet() {
stop();
}
/** connectServlet on Servlet side.
* Parameters are same as WebSocket ctor.
* @see WebUIServletContext
*/
public void connectServlet(String server, String client, InputStream is, OutputStream os, String host, String url, String[] cookies) {
try {
WebSocket websock = new WebSocket(server, client, is, os, host, url, cookies);
WebUIClient web_client = new WebUIClient(this, websock, handler);
clients.add(web_client);
handler.clientConnected(web_client);
web.attachWebSocket(websock);
} catch (Exception e) {
JFLog.log(e);
}
}
/** Sets upload folder. */
public void setUploadFolder(String folder) {
web.setUploadFolder(folder);
}
/** Sets max file upload size (-1 = unlimited) (default = 64MBs) */
public void setUploadLimit(long size) {
WebUpload.setMaxLength(size);
}
public AccessControl getAccessControl() {
return access;
}
public void setAccessControl(AccessControl access) {
this.access = access;
}
/** Enable client SSL certificate verification. */
public void setClientVerify(boolean state) {
web.setClientVerify(state);
}
/** Load a resource stored in the classpath. */
public byte[] getResource(String name) {
InputStream is = getClass().getClassLoader().getResourceAsStream(name);
if (is == null) {
JFLog.log("WebUIServer:Resource not found:" + name);
return null;
}
return JF.readAll(is);
}
public void doPost(WebRequest req, WebResponse res) {
doGet(req, res);
}
public void doGet(WebRequest req, WebResponse res) {
String url = req.getURL();
HTTP.Parameters params = HTTP.Parameters.decode(req.getQueryString());
byte[] data = null;
if (url.equals("/favicon.ico")) {
url = "/webui.png";
}
/*
if (url.endsWith(".html")) {
res.setContentType("text/html"); //default
}
*/
if (url.endsWith(".css")) {
res.setContentType("text/css");
}
else if (url.endsWith(".png")) {
res.setContentType("image/png");
}
else if (url.endsWith(".js")) {
res.setContentType("text/javascript");
}
if (url.startsWith("/static/")) {
// url = /static/r#
Resource r = Resource.getResource(url.substring(8));
if (r != null) {
data = r.data;
res.setContentType(r.mime);
}
} else if (url.startsWith("/user/")) {
data = handler.getResource(url, params, req, res);
res.addHeader("Cache-Control: no-store");
} else if (url.startsWith("/api/")) {
data = handler.getResource(url, params, req, res);
res.addHeader("Cache-Control: no-store");
} else if (url.startsWith("/icons/")) {
try {
InputStream is = this.getClass().getResourceAsStream("/javaforce" + url);
data = is.readAllBytes();
is.close();
} catch (Exception e) {
JFLog.log("WebUIServer:Resource not found:" + url);
JFLog.log(e);
}
} else {
int idx = url.indexOf('.');
if (idx == -1) {
url = "/webui.html";
}
String browser = req.getHeader("User-Agent");
if (browser != null) {
if (browser.indexOf("Trident") != -1) {
//Internet Explorer - not supported
url = "/webui-ie.html";
}
}
//load resource from javaforce.jar
data = getResource("javaforce/webui/static" + url);
}
if (data == null) {
res.setStatus(404, "Resource not found");
return;
}
try {
res.write(data);
} catch (Exception e) {
e.printStackTrace();
}
}
public static ArrayList<WebUIClient> clients;
public static WebUIClient getClient(WebSocket sock) {
int cnt = clients.size();
for(int a=0;a<cnt;a++) {
WebUIClient client = clients.get(a);
if (client.socket == sock) {
return client;
}
}
JFLog.log("WebUIServer:client not found by socket {" + sock + "}");
return null;
}
public static WebUIClient getClient(String hash) {
int cnt = clients.size();
for(int a=0;a<cnt;a++) {
WebUIClient client = clients.get(a);
if (client.hash.equals(hash)) {
return client;
}
}
JFLog.log("WebUIServer:client not found by hash {" + hash + "}");
return null;
}
public static WebUIServletContext createServlet(String[] classpath, String className) {
JFClassLoader loader = new JFClassLoader(classpath);
try {
Class<?> cls = loader.findClass(className);
Constructor<?> ctor = cls.getConstructors()[0];
Object obj = ctor.newInstance();
WebUIServletContext context = new WebUIServletContext(loader, obj);
return context;
} catch (Exception e) {
JFLog.log(e);
}
return null;
}
public static WebUIServletContext createServlet(String folder, String[] classpath, String className) {
int cnt = classpath.length;
String[] fullpath = new String[cnt];
for(int i=0;i<cnt;i++) {
fullpath[i] = folder + "/" + classpath[i];
}
return createServlet(fullpath, className);
}
public void addServlet(WebUIServletContext servlet) {
try {
Thread.currentThread().setContextClassLoader(servlet.getClassLoader());
servlet.startServlet();
servlet.init();
synchronized (servlets) {
servlets.put(servlet.getName(), servlet);
}
} catch (Throwable t) {
JFLog.log(t);
}
}
public void removeServlet(WebUIServletContext servlet) {
synchronized (servlets) {
servlets.remove(servlet.getName());
}
try {
Thread.currentThread().setContextClassLoader(servlet.getClassLoader());
servlet.destroy();
servlet.stopServlet();
} catch (Throwable t) {
JFLog.log(t);
}
}
public WebUIServletContext getServlet(String name) {
WebUIServletContext servlet;
synchronized (servlets) {
servlet = servlets.get(name);
}
return servlet;
}
public WebUIServletContext[] getServlets() {
synchronized (servlets) {
return servlets.values().toArray(new WebUIServletContext[0]);
}
}
public void clearServlets() {
synchronized (servlets) {
for(WebUIServletContext servlet : servlets.values()) {
removeServlet(servlet);
}
}
}
public int doWebSocketConnect(WebSocket sock) {
try {
String url = sock.getURL();
if (url.equals("/")) {
WebUIClient client = new WebUIClient(this, sock, handler);
clients.add(client);
handler.clientConnected(client);
return ACCEPT;
}
//servlets
if (servlets == null) return REJECT;
String name = url.substring(1);
WebUIServletContext servlet;
synchronized (servlets) {
servlet = servlets.get(name);
}
if (servlet == null) return REJECT;
Thread.currentThread().setContextClassLoader(servlet.getClassLoader());
servlet.connectServlet(sock.getServerHost(), sock.getClientHost(), sock.getInputStream(), sock.getOutputStream(), sock.getHost(), sock.getURL(), sock.getCookies());
return DETACH;
} catch (Exception e) {
JFLog.log(e);
return REJECT;
}
}
public void doWebSocketClosed(WebSocket sock) {
WebUIClient client = getClient(sock);
clients.remove(client);
handler.clientDisconnected(client);
}
public void doWebSocketMessage(WebSocket sock, byte[] data, int type) {
WebUIClient client = getClient(sock);
if (client == null) {
JFLog.log("Unknown Socket:" + sock);
return;
}
if (type == WebSocket.TYPE_BINARY || type == WebSocket.TYPE_CONT) {
client.dispatchData(data);
return;
}
String msg = new String(data);
if (debug) JFLog.log("RECV=" + msg);
//decode JSON
JSON.Element json;
try {
json = JSON.parse(msg);
} catch (Exception e) {
JFLog.log("msg=" + msg);
e.printStackTrace();
return;
}
String id = "";
String event = "";
ArrayList<String> args = new ArrayList<String>();
int cnt = json.children.size();
for(int a=0;a<cnt;a++) {
JSON.Element e = json.children.get(a);
if (e.key.equals("id")) {
id = e.value;
}
else if (e.key.equals("event")) {
event = e.value;
}
else {
args.add(e.key + "=" + e.value);
}
}
try {
client.dispatchEvent(id, event, args.toArray(JF.StringArrayType));
} catch (Exception e) {
JFLog.log(e);
}
}
public class BusMethods {
}
}