formparser.java

Farse uploading file

package include;


import java.io.*;
import java.util.ArrayList;
import javax.servlet.ServletInputStream;


/*
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 * and open the template in the editor.
 */

/**
 *
 * @author James Bond 007
 */
public class FormParser {

//Sub class
    public class SFile{
        public String filename="";
        public long filesize=0;
        public String tempname="";
        public String uboxname = "";
        public String fileType = "";

        public SFile(){
            filename="";
            filesize=0;
            tempname="";
            uboxname = "";
            fileType = "";
        }

        public boolean MoveFile(String NewDes){
            NewDes = convertSystemPath(NewDes);
            if (tempname.equals("")) return false;
            try{
                File tmp = new File(tempname);
                System.out.println("Moving file '" + tempname + "' to '" + NewDes + "'");
                if(!tmp.exists()) return false;
                //System.out.print(NewDes);
                return tmp.renameTo(new File(NewDes));
            }catch(Exception ex){
                System.out.println(ex.getMessage());
            }
            System.out.println("Moving file '" + tempname + "' to '" + NewDes + "'");
            return false;
        }

        public String convertSystemPath(String path){
        if(File.separator.equals("\\"))
            return path.replace("/", File.separator);
        else
            return path.replace("\\", File.separator);
        }

        public String convertWebPath(String path){
            return path.replace("\\", "/");
        }

        public String getFileName(){
            return filename;
        }

        public long getFileSize(){
            return filesize;
        }

        public String getTempName(){
            return tempname;
        }

        public String getUploadBoxName(){
            return uboxname;
        }
    }

    public class MyParam{
        public String name="";
        public String value="";

        public MyParam(String Name,String Value){
            this.name=Name;
            this.value=Value;
        }
    }

//Variable
    ServletInputStream in=null;
    StringBuilder out = new StringBuilder("");
    public String tmppath = "";
    public ArrayList<SFile> FileList = new ArrayList<SFile>();
    public ArrayList<MyParam> ParamList = new ArrayList<MyParam>();
    public boolean isMultipartFormdata = false;

//Function
    public String getParameter(String name){
        int n = ParamList.size();
        for (int i=0;i<n;i++)
            if(ParamList.get(i).name.equals(name))
                return ParamList.get(i).value;
        return null;
    }

    public String getParameter(String name, String strdefault){
        String v = getParameter(name);
        if(v==null)
            return strdefault;
        return v;
    }

    public String[] getParameterValue(String name){
        int count=0;
        int n = ParamList.size();
        ArrayList<String> b = new ArrayList<String>();
        for (int i=0;i<n;i++)
            if(ParamList.get(i).name.equals(name)){
                b.add(ParamList.get(i).value);
            }
        if(b.size()==0) return null;
        String[] r = new String[b.size()];
        for(int i=0;i<b.size();i++)
            r[i]=b.get(i);
        return r;
    }

    public void setTempPath(String tp){
        tmppath=tp;
    }

    public String getTempPath(){
        return tmppath;
    }

    public String getstr(String dis, String find, String end){
        int pos = dis.lastIndexOf(find);
        if(pos>=0){
            String r = dis.substring(pos+find.length());
            if(end.equals("")){
                return r;
            }else{
                int pos2 = r.indexOf(end);
                if(pos2>=0)
                    return r.substring(0,pos2);
                else
                    return null;
            }
        }
        return null;
    }

    public FormParser(ServletInputStream in) throws IOException{
        String boundary = "";                                       //Holding the boundary
        byte[] bLine = new byte[128];                               //Data in byte array
        byte[] crlf = {(byte) 0x0D, (byte) 0x0A};                   // \r\n
        String Line = "";                                           //Data in String
        int i = in.readLine(bLine, 0, 128);                         //Read the first line
        if(i!=-1) //Submit empty
            Line = new String(bLine,0,i);                                   //Try to find out what the data is
        if (Line.startsWith("-----")){
            this.isMultipartFormdata = true;
            boundary = Line.substring(0,Line.length()-2);                                       //For sure the boundary never > 128 byte
            //Yeah things become difficult
            while(i!=-1){ //While not end of stream
                i = in.readLine(bLine, 0, 128);
                if(i!=-1)
                    Line = new String(bLine,0,i);
                else
                    break;
                if(Line.startsWith("Content-Disposition: form-data;")){
                    if(Line.contains("filename=\"")){ //Ha ha you got a file
                        SFile sf = new SFile();
                        sf.filename = this.getstr(Line, "filename=\"", "\"");
                        sf.uboxname = this.getstr(Line, " name=\"", "\"");
                        File f = File.createTempFile("JFParser", "tmp");
                        FileOutputStream o = new FileOutputStream(f);
                        i = in.readLine(bLine, 0, 128); //This must be a Content-Type line
                        Line = new String(bLine,0,i);
                        if(Line.startsWith("Content-Type: ")){ //Just check if everything ok
                            sf.fileType = Line.substring(14,Line.length()-2);
                        }
                        else    //WTF. This must be Content-type
                            {out.append("Error, Got a file but can't get type\n"); return;}
                        i = in.readLine(bLine, 0, 128); //This must be an empty line
                        Line = "";
                        i = in.readLine(bLine, 0, 128);
                        Line = new String(bLine,0,i);
                        while(i!=-1 && !Line.startsWith(boundary)){
                            o.write(bLine,0,i);
                            i = in.readLine(bLine, 0, 128);
                            if(i!=-1)
                                Line = new String(bLine,0,i);
                        }
                        o.close();
                        sf.tempname = f.getAbsolutePath();
                        sf.filesize = f.length();
                        if(f.length()>2)
                            this.FileList.add(sf);
                    }else{  //Just a normal data
                        String name = this.getstr(Line, " name=\"", "\"");
                        String value = "";
                        i = in.readLine(bLine, 0, 128); //This must be an empty line
                        Line = "";
                        while(i!=-1 && !Line.startsWith(boundary)){
                            value += Line;
                            i = in.readLine(bLine, 0, 128);
                            if(i!=-1){
                                Line = new String(bLine,0,i);
                            }
                        }
                        value = value.substring(0,value.length()-2);
                        MyParam p = new MyParam(name, value);
                        this.ParamList.add(p);
                    }
                }else{
                    //WTF
                    out.append("Error, Expected Content-Disposition \n"); return;
                }
            }

        }else{
            this.isMultipartFormdata = false;                       //Simple thing just try to read all and frase the normal post
            String data = "";
            while(i != -1){ //While read OK, not end of file
                data += new String(bLine,0,i);
                i = in.readLine(bLine, 0, 128);
            }
            //Okey we got the normal data: name1=adasd&name2=juifsi&name3=....
            //System.out.println("FullData: " + data);
            String[] datalist = data.split("&");
            for(int d=0;d<datalist.length;d++){
                String[] dt = datalist[d].split("=");
                //System.out.println("Got " + datalist[d]);
                if(dt.length>1){    //Ok safe to move
                    //System.out.println("Name=" + dt[0] + " | Value=" + dt[1]);
                    MyParam p = new MyParam(dt[0], dt[1]);
                    this.ParamList.add(p);
                }
            }
        }
    }

    @Override
    protected void finalize() throws Throwable {
        super.finalize();
        for(int i=0;i< FileList.size();i++){
            new File(FileList.get(i).tempname).delete();
        }
    }

}