import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import sun.security.x509.*;
import java.security.*;
/**
* Read/Write Servlet
*
*
* @version 0.85 , 30/04/2003
* @author Robert Gordesch
*/
public class RWServlet extends HttpServlet
{
String md5 = "";
static String basePath=null;
public void init(ServletConfig config) throws ServletException
{
basePath=config.getInitParameter("basePath");
System.out.println("path"+basePath);
}
public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
Enumeration header = req.getHeaderNames();
while(header.hasMoreElements())
System.out.println(header.nextElement());
System.out.println(req.getCookies()[0].getValue());
/*
//value chosen to limit denial of service
if (req.getContentLength() > 8 * 1024)
{
res.setContentType("text/html");
ServletOutputStream out = res.getOutputStream();
out.println("<html><head><title>Too big</title></head>");
out.println("<body><h1>Error - content length >8k not ");
out.println("</h1></body></html>");
} else
{
doGet(req, res);
}*/
}
public void doPut(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
ServletOutputStream out = res.getOutputStream();
ServletInputStream in = req.getInputStream();
String mimeType = "text/plain";
/* if(req.getContentLength()==-1)
{
res.setContentType(mimeType);
res.sendError(res.SC_BAD_REQUEST,"You must specifiy Content-Length!");
out.close();in.close();}*/
//else { res.setContentType(mimeType);
// res.setStatus(res.SC_CREATED);
// }
String query = req.getQueryString();
String id = "", count = "", numFiles = "", cMD5 = "";
String mode = "";
try
{
if (query != null)
{
// System.out.println(query);
// System.out.println("Query parameter got" + req.getParameter("id") + " count" + req.getParameter("count") + " nf" + req.getParameter("nf") + " md5 " + req.getParameter("md5"));
id = req.getParameter("id");
count = req.getParameter("count");
numFiles = req.getParameter("nf");
cMD5 = req.getParameter("md5");
mode = req.getParameter("mode");
}
String fileToPut = (basePath!=null) ? basePath+"/"+req.getPathInfo():req.getPathTranslated();
System.out.println("fileToWrite " + fileToPut);
/*
if (exists(fileToPut, id) && !mode.equals("update") && !mode.equals("replace"))
{
res.setContentType(mimeType);
res.setStatus(res.SC_CONFLICT,"Conflict");
//res.sendError(HttpServletResponse.SC_CONFLICT, "Conflict");
// in.close();
//out.close();
System.out.println("why here ? " );
return;
}
*/
// creates the Directorystructure
new File(fileToPut.substring(0, fileToPut.lastIndexOf(File.separator))).mkdirs();
// System.out.println("length"+req.getContentLength());
FileOutputStream outFile = new FileOutputStream(fileToPut);
cMD5 = receiveFile(outFile, in, out, req.getContentLength());
if (md5.equals(cMD5))
{
res.setHeader("MD5", md5);
res.setContentType(mimeType);
res.setStatus(res.SC_CREATED);
// all files uploaded?
if (Integer.parseInt(count) == Integer.parseInt(numFiles))// && md5.equals(cMD5))
{
int index = fileToPut.lastIndexOf(File.separator) + 1;
String source = fileToPut.substring(0, index);
String fileName = fileToPut.substring(index);
index = source.indexOf(id);
int index2 = index + id.length() + 1;
int index3 = source.indexOf(File.separator, index2);
String dest = (index3 > 0) ? source.substring(0, index) + source.substring(index2, index3) : source.substring(0, index) + fileName;
if (index3 < 0)
source += fileName;
else
source = source.substring(0, index3);
// System.out.println(source);
// System.out.println(dest);
File f = new File(source);
if (mode.equals("replace"))
{
File origFile = new File(dest);
GregorianCalendar calendar = new GregorianCalendar();
File saveFile = new File(dest + "_" + calendar.get(calendar.DAY_OF_MONTH) + "." + (calendar.get(calendar.MONTH) + 1) + "." + calendar.get(calendar.YEAR) + "_" + calendar.get(calendar.HOUR_OF_DAY) + "." + calendar.get(calendar.MINUTE) + "." + calendar.get(calendar.SECOND));
origFile.renameTo(saveFile);
// System.out.println(saveFile+" replace");
// System.out.println(origFile);
}
f.renameTo(new File(dest));
new File(source.substring(0, index2)).delete();
}
in.close();
out.close();
} else
{
System.out.println("Got an error "+cMD5+" "+md5);
res.setContentType(mimeType);
res.setStatus(res.SC_NOT_ACCEPTABLE, " Checksums not identical!");
res.setHeader("MD5", md5);
//res.sendError(HttpServletResponse.SC_NOT_ACCEPTABLE, " Checksums not identical!");
// out.println("\r\n");
// new File(fileToPut).delete();
in.close();
out.close();
}
// outFile.close();
// out.close();
} catch (FileNotFoundException fnf)
{
res.sendError(HttpServletResponse.SC_NOT_FOUND, " Not Found!");
fnf.printStackTrace();
} catch (IOException ioe)
{
System.out.println("IOException: Unknown file length: " + ioe);
res.sendError(HttpServletResponse.SC_BAD_REQUEST, "File length!");
} catch (Exception e5)
{
System.out.println(e5);
e5.printStackTrace();
}
// } // to else
}
public void doHead(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
System.out.println("Called head");
ServletOutputStream out = res.getOutputStream();
ServletInputStream in = req.getInputStream();
String mimeType = "text/plain";
/* if(req.getContentLength()==-1)
{
res.setContentType(mimeType);
res.sendError(res.SC_BAD_REQUEST,"You must specifiy Content-Length!");
out.close();in.close();}*/
//else { res.setContentType(mimeType);
// res.setStatus(res.SC_CREATED);
// }
String query = req.getQueryString();
String id = "", count = "", numFiles = "", cMD5 = "";
String mode = "";
try
{
if (query != null)
{
// System.out.println(query);
// System.out.println("Query parameter got" + req.getParameter("id") + " count" + req.getParameter("count") + " nf" + req.getParameter("nf") + " md5 " + req.getParameter("md5"));
System.out.println("header ist "+req.getHeader("Connection"));
id = req.getParameter("id");
count = req.getParameter("count");
numFiles = req.getParameter("nf");
cMD5 = req.getParameter("md5");
mode = req.getParameter("mode");
}
String fileToPut = (basePath!=null) ? basePath+"/"+req.getPathInfo():req.getPathTranslated();
System.out.println("fileToWrite " + fileToPut);
if (new File(fileToPut).exists())// && !mode.equals("update") && !mode.equals("replace"))
{
res.setHeader("Connection", "keep-alive");
res.setContentType(mimeType);
res.setStatus(res.SC_OK);
//res.sendError(HttpServletResponse.SC_CONFLICT, "Conflict");
// in.close();
//out.close();
return;
} else
{
res.setHeader("Connection", "keep-alive");
res.setContentType(mimeType);
res.setStatus(res.SC_ACCEPTED);
}
} catch(Exception e) { System.out.println(e);}
}
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
{
ServletOutputStream out = res.getOutputStream();
ServletInputStream in = req.getInputStream();
// start
String mimeType = "text/html";
String fileToGet = req.getPathTranslated(); //req.getPathInfo();
String query = req.getQueryString();
System.out.println(req.getQueryString());
try
{
if (query != null)
{
System.out.println("Query parameter got" + req.getParameter("baseURL") + " " + req.getContextPath() + req.getServletPath());
String baseURL = req.getParameter("baseURL");
res.setContentType(mimeType);
/* Cookie cookie = new Cookie("Rogo", "idiot");
cookie.setPath("http://localhost:8080");
res.addCookie(cookie);
*/
out.println("<APPLET");
// out.println("CODEBASE = \".\"");
out.println("CODE = \"ServerWriter.class\"");
out.println("ARCHIVE=\"upload.jar\"");
out.println("NAME = \"Upload Applet\"");
out.println(" WIDTH = 160");
out.println(" HEIGHT = 25");
out.println(" HSPACE = 0 ");
out.println(" VSPACE = 0 ");
out.println(" ALIGN = middle>");
out.println(" <PARAM NAME=\"baseURL\" VALUE=" + baseURL + ">");
out.println(" <PARAM NAME=\"servletURL\" VALUE=\"" + req.getContextPath() + req.getServletPath() + "\">");
StringTokenizer querys = new StringTokenizer(query, "+");
out.println("</APPLET>");
}
if (query == null)
{
File f = new File(fileToGet);
if (f.isDirectory())
{
int i = 0;
ByteArrayOutputStream tempfile = new ByteArrayOutputStream(1024);
try
{
while (i <= f.list().length - 1)
{
tempfile.write(f.list()[i].getBytes());
tempfile.write('\n');
++i;
} // to while
} catch (IOException ioe)
{
System.out.println(ioe);
}
res.setHeader("Content-Length", new Integer(tempfile.size()).toString());
res.setContentType(mimeType);
tempfile.writeTo(out);
} else
{
FileInputStream inFile = new FileInputStream(fileToGet);
if (fileToGet.endsWith(".html") || fileToGet.endsWith(".htm"))
mimeType = "text/html";
res.setHeader("Content-Length", new Integer(inFile.available()).toString());
res.setContentType(mimeType);
sendFile(inFile, out, in);
inFile.close();
}
} // to sec if
} catch (FileNotFoundException fnf)
{
res.sendError(HttpServletResponse.SC_NOT_FOUND, " Not Found!");
} catch (IOException ioe)
{
System.out.println("IOException: Unknown file length: " + ioe);
res.sendError(HttpServletResponse.SC_BAD_REQUEST, " Bad Request");
}
// end
}
public String getServletInfo()
{
return "A Servlet that reads data from and writes data to the server\n" + "If the requested data is a directory it sends the list of files in the directory back";
}
public void sendFile(FileInputStream inFile, ServletOutputStream outbound, ServletInputStream inbound)
{
try
{
byte dataBody[] = new byte[1024];
int cnt;
while ((cnt = inFile.read(dataBody)) != -1)
{
outbound.write(dataBody, 0, cnt);
}
} catch (IOException ioe)
{
System.out.println("IOException while sending file: " + ioe);
}
try
{
// Cleanup
outbound.close();
inbound.close();
} catch (IOException ioe)
{
System.out.println("IOException closing streams in sendFile: " + ioe);
}
}
public String receiveFile(FileOutputStream outFile, ServletInputStream inbound, ServletOutputStream outbound, int length)
{
StringBuffer buf=new StringBuffer();
try
{
length-=32;
System.out.println("File size " +length+" available "+inbound.available());
byte[] b = new byte[512];
int readCount = 0;
int available = 0;
int bufSize = b.length;
int readSize = b.length;
MessageDigest md = MessageDigest.getInstance("MD5");
while (readCount < length)
{
available=inbound.available();
if(available>=bufSize)
readSize=bufSize;
else
readSize=available;
if(readCount + readSize > length)
{
inbound.read(b, 0, length - readCount); // mout.flush();
md.update(b, 0, length-readCount);
outFile.write(b,0, length - readCount);
}
else
{
inbound.read(b,0,readSize);
md.update(b, 0, readSize);
outFile.write(b,0,readSize);
}
readCount += readSize;
//System.out.println("rock " + readCount);
}
int c=0;
System.out.println("rock ");
while((c=inbound.read())!=-1)
{
System.out.print((char)c);
buf.append((char)c);
}
md5 = getMD5(md);
System.out.println(md5);
// System.out.println(cnt);
// one byte version
/* int cnt = 0;
// System.out.println(cnt);
while (cnt < size)
{
outFile.write(inbound.read());
++cnt;
}*/
} catch (IOException ioe)
{
System.out.println("IOException while receiving file: " + ioe);
}
catch (Exception e6)
{
System.out.println("error while getting MD5 "+e6);
}
try
{
// Cleanup
outFile.flush();
outFile.close();
// outbound.close();
// inbound.close();
} catch (IOException ioe)
{
System.out.println("IOException closing streams in receiveFile: " + ioe);
}
return buf.toString();
}
public static String getMD5(MessageDigest md) throws Exception
{
System.out.println("digest");
byte[] bytes = md.digest();
StringBuffer sb = new StringBuffer();
int decValue;
for (int i = 0; i < bytes.length; i++)
{
String hexVal = Integer.toHexString(bytes[i] & 0xFF);
if (hexVal.length() == 1)
hexVal = "0" + hexVal; // put a leading zero
sb.append(hexVal);
}
return sb.toString();
}
public static String getSHA(byte[] b) throws Exception
{
MessageDigest md = MessageDigest.getInstance("sha1");
md.update(b, 0, b.length);
//System.out.println("digest");
byte[] bytes = md.digest();
StringBuffer sb = new StringBuffer();
int decValue;
for (int i = 0; i < bytes.length; i++)
{
String hexVal = Integer.toHexString(bytes[i] & 0xFF);
if (hexVal.length() == 1)
hexVal = "0" + hexVal; // put a leading zero
sb.append(hexVal);
}
return sb.toString();
}
public boolean exists(String fileToPut, String id)
{
int index = fileToPut.lastIndexOf(File.separator) + 1;
String source = fileToPut.substring(0, index);
String fileName = fileToPut.substring(index);
index = source.indexOf(id);
int index2 = index + id.length() + 1;
int index3 = source.indexOf(File.separator, index2);
String dest = (index3 > 0) ? source.substring(0, index) + source.substring(index2, index3) : source.substring(0, index) + fileName;
if (index3 < 0)
source += fileName;
else
source = source.substring(0, index3);
//System.out.println(source);
// System.out.println(dest);
File f = new File(dest);
return f.exists();
}
}
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