changed folder name

src/zutil/net/http/multipart/MultipartParser.java

@@ -0,0 +1,194 @@
+package zutil.net.http.multipart;
+
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.servlet.http.HttpServletRequest;
+
+import zutil.ProgressListener;
+import zutil.net.http.HTTPHeaderParser;
+
+/**
+ * Parses a multipart/form-data http request, 
+ * saves files to temporary location.
+ * 
+ * http://www.ietf.org/rfc/rfc1867.txt
+ * 
+ * @author Ziver
+ *
+ */
+public class MultipartParser {
+	/** This is the temporary directory for the received files	 */
+	private File tempDir;
+	/** This is the delimiter that will separate the fields */
+	private String delimiter;
+	/** The length of the HTTP Body */
+	private long contentLength;
+	/** This is the input stream */
+	private BufferedReader in;
+	
+	/** This is the listener that will listen on the progress */
+	private ProgressListener<MultipartField> listener;
+	
+	
+	
+	public MultipartParser(BufferedReader in, HTTPHeaderParser header){
+		this.in = in;
+		
+		String cotype = header.getHeader("Content-type");
+		cotype = cotype.split(" *; *")[1];
+		delimiter = cotype.split(" *= *")[1];
+		
+		contentLength = Long.parseLong( header.getHeader("Content-Length") );
+	}
+	
+	public MultipartParser(BufferedReader in, HttpServletRequest req){
+		this.in = in;
+		
+		String cotype = req.getHeader("Content-type");
+		cotype = cotype.split(" *; *")[1];
+		delimiter = cotype.split(" *= *")[1];
+		
+		contentLength = req.getContentLength();
+	}
+	
+	public MultipartParser(BufferedReader in, String delimiter, long length){
+		this.in = in;
+		this.delimiter = delimiter;		
+		this.contentLength = length;
+	}
+	
+	
+	/**
+	 * @param listener is the listener that will be called for progress
+	 */
+	public void setListener(ProgressListener<MultipartField> listener){
+		this.listener = listener;
+	}
+	
+	/**
+	 * Parses the HTTP Body and returns a list of fields
+	 *  
+	 * @return A list of FormField
+	 */
+	public List<MultipartField> parse() throws IOException{
+		ArrayList<MultipartField> list = new ArrayList<MultipartField>();
+		// TODO: parse(list, delimiter);
+		return list;
+	}
+
+// TODO: 
+/* 
+	private void parse(List<MultipartField> list, String delimiter) throws IOException{
+		String line = "";
+		MultipartField field = null;
+		delimiter = "--"+delimiter;
+		String endDelimiter = delimiter+"--";
+		BufferedWriter out = null;
+		// Parsing the stream
+		while(line != null){
+			line = in.readLine();
+			// Skip empty lines
+			if(line == null || line.trim().isEmpty())
+				continue;
+			// End of field
+			else if(line.equals( endDelimiter )){
+				list.add(field);
+				if(out != null)	out.close();
+				field.length = field.file.length();
+				out = null;
+				field = null;
+				continue;
+			}
+			// New field
+			else if(line.equals( delimiter )){
+				if(field != null){
+					list.add(field);
+					if(out != null)	out.close();
+					field.length = field.file.length();
+					out = null;
+					field = null;
+				}
+				// Read the content-disposition
+				line = in.readLine();
+				if(line.toLowerCase().startsWith("content-disposition")){
+					line = line.split(":", 2)[1];
+					String[] fieldData = line.split(" *; *");
+					//String type = fieldData[0].toLowerCase();
+					field = new MultipartField();
+					field.type = MultipartField.FieldType.Field;
+					
+					// Parse content-disposition parameters
+					for(String param : fieldData){
+						String[] temp = param.split(" *= *");
+						if(temp[0].equalsIgnoreCase("name"))
+							field.fieldname = temp[1];
+						else if(temp[0].equalsIgnoreCase("filename")){
+							field.filename = temp[1];
+							field.file = createTempFile();
+							out = new BufferedWriter(new FileWriter(field.file));
+							field.type = MultipartField.FieldType.File;
+						}
+					}
+				}
+				else 
+					throw new IOException("MultipartForm parse error unrecognized line: "+line);
+			}
+			// Read field data
+			else if(field != null){
+				if(field.type == MultipartField.FieldType.File){
+					out.append(line);
+				}
+				else{
+					field.value += line;
+				}
+				field.received += line.length();
+			}
+		}
+		
+		if(field != null)
+			throw new IOException("MultipartForm parse error stream ended prematurely");
+	}
+*/
+	
+	/**
+	 * Creates a temporary file in either the system 
+	 * temporary folder or by the setTempDir() function
+	 * 
+	 * @return the temporary file
+	 */
+	protected File createTempFile() throws IOException{
+		if(tempDir != null) 
+			return File.createTempFile("upload", ".part", tempDir.getAbsoluteFile());
+		else
+			return File.createTempFile("upload", ".part");
+	}
+	
+	/**
+	 * Sets the initial delimiter
+	 * 
+	 * @param delimiter is the new delimiter
+	 */
+	public void setDelimiter(String delimiter){
+		this.delimiter = delimiter;
+	}
+	
+	public void setTempDir(File dir){
+		if(!dir.isDirectory())
+			throw new RuntimeException("\""+dir.getAbsolutePath()+"\" is not a directory!");
+		if(!dir.canWrite())
+			throw new RuntimeException("\""+dir.getAbsolutePath()+"\" is not writable!");
+		tempDir = dir;
+	}
+	
+	public long getContentLength(){
+		return contentLength;
+	}
+}