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The source code is released under:
GNU Lesser General Public License
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This file is part of VisiCut. //from w w w . j a v a2 s . c om VisiCut is free software: you can redistribute it and/or modify it under the terms of the Lesser GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. VisiCut is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public License for more details. You should have received a copy of the GNU General Public License along with VisiCut. If not, see <http://www.gnu.org/licenses/>. package com.t_oster.fotoipcam; import java.io.BufferedReader; import java.io.ByteArrayInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.PrintWriter; import java.net.ServerSocket; import java.net.Socket; import java.net.URLEncoder; import java.util.Date; import java.util.Enumeration; import java.util.Vector; import java.util.Hashtable; import java.util.Locale; import java.util.Properties; import java.util.StringTokenizer; import java.util.TimeZone; import java.io.ByteArrayOutputStream; import java.io.FileOutputStream; /** * A simple, tiny, nicely embeddable HTTP 1.0 (partially 1.1) server in Java * * <p> NanoHTTPD version 1.24, * Copyright © 2001,2005-2011 Jarno Elonen (elonen@iki.fi, http://iki.fi/elonen/) * and Copyright © 2010 Konstantinos Togias (info@ktogias.gr, http://ktogias.gr) * * <p><b>Features + limitations: </b><ul> * * <li> Only one Java file </li> * <li> Java 1.1 compatible </li> * <li> Released as open source, Modified BSD licence </li> * <li> No fixed config files, logging, authorization etc. (Implement yourself if you need them.) </li> * <li> Supports parameter parsing of GET and POST methods </li> * <li> Supports both dynamic content and file serving </li> * <li> Supports file upload (since version 1.2, 2010) </li> * <li> Supports partial content (streaming)</li> * <li> Supports ETags</li> * <li> Never caches anything </li> * <li> Doesn't limit bandwidth, request time or simultaneous connections </li> * <li> Default code serves files and shows all HTTP parameters and headers</li> * <li> File server supports directory listing, index.html and index.htm</li> * <li> File server supports partial content (streaming)</li> * <li> File server supports ETags</li> * <li> File server does the 301 redirection trick for directories without '/'</li> * <li> File server supports simple skipping for files (continue download) </li> * <li> File server serves also very long files without memory overhead </li> * <li> Contains a built-in list of most common mime types </li> * <li> All header names are converted lowercase so they don't vary between browsers/clients </li> * * </ul> * * <p><b>Ways to use: </b><ul> * * <li> Run as a standalone app, serves files and shows requests</li> * <li> Subclass serve() and embed to your own program </li> * <li> Call serveFile() from serve() with your own base directory </li> * * </ul> * * Homepage: http://iki.fi/elonen/code/nanohttpd/ * * See the end of the source file for distribution license * (Modified BSD licence) */ public class NanoHTTPD { // ================================================== // API parts // ================================================== /** * Override this to customize the server.<p> * * (By default, this delegates to serveFile() and allows directory listing.) * * @param uri Percent-decoded URI without parameters, for example "/index.cgi" * @param method "GET", "POST" etc. * @param parms Parsed, percent decoded parameters from URI and, in case of POST, data. * @param header Header entries, percent decoded * @return HTTP response, see class Response for details */ public Response serve( String uri, String method, Properties header, Properties parms, Properties files ) { System.out.println( method + " '" + uri + "' " ); Enumeration e = header.propertyNames(); while ( e.hasMoreElements()) { String value = (String)e.nextElement(); System.out.println( " HDR: '" + value + "' = '" + header.getProperty( value ) + "'" ); } e = parms.propertyNames(); while ( e.hasMoreElements()) { String value = (String)e.nextElement(); System.out.println( " PRM: '" + value + "' = '" + parms.getProperty( value ) + "'" ); } e = files.propertyNames(); while ( e.hasMoreElements()) { String value = (String)e.nextElement(); System.out.println( " UPLOADED: '" + value + "' = '" + files.getProperty( value ) + "'" ); } return serveFile( uri, header, myRootDir, true ); } /** * HTTP response. * Return one of these from serve(). */ public class Response { /** * Default constructor: response = HTTP_OK, data = mime = 'null' */ public Response() { this.status = HTTP_OK; } /** * Basic constructor. */ public Response( String status, String mimeType, InputStream data ) { this.status = status; this.mimeType = mimeType; this.data = data; } /** * Convenience method that makes an InputStream out of * given text. */ public Response( String status, String mimeType, String txt ) { this.status = status; this.mimeType = mimeType; try { this.data = new ByteArrayInputStream( txt.getBytes("UTF-8")); } catch ( java.io.UnsupportedEncodingException uee ) { uee.printStackTrace(); } } /** * Adds given line to the header. */ public void addHeader( String name, String value ) { header.put( name, value ); } /** * HTTP status code after processing, e.g. "200 OK", HTTP_OK */ public String status; /** * MIME type of content, e.g. "text/html" */ public String mimeType; /** * Data of the response, may be null. */ public InputStream data; /** * Headers for the HTTP response. Use addHeader() * to add lines. */ public Properties header = new Properties(); } /** * Some HTTP response status codes */ public static final String HTTP_OK = "200 OK", HTTP_PARTIALCONTENT = "206 Partial Content", HTTP_RANGE_NOT_SATISFIABLE = "416 Requested Range Not Satisfiable", HTTP_REDIRECT = "301 Moved Permanently", HTTP_FORBIDDEN = "403 Forbidden", HTTP_NOTFOUND = "404 Not Found", HTTP_BADREQUEST = "400 Bad Request", HTTP_INTERNALERROR = "500 Internal Server Error", HTTP_NOTIMPLEMENTED = "501 Not Implemented"; /** * Common mime types for dynamic content */ public static final String MIME_PLAINTEXT = "text/plain", MIME_HTML = "text/html", MIME_DEFAULT_BINARY = "application/octet-stream", MIME_XML = "text/xml"; // ================================================== // Socket & server code // ================================================== /** * Starts a HTTP server to given port.<p> * Throws an IOException if the socket is already in use */ public NanoHTTPD( int port, File wwwroot ) throws IOException { myTcpPort = port; this.myRootDir = wwwroot; myServerSocket = new ServerSocket( myTcpPort ); myThread = new Thread( new Runnable() { public void run() { try { while( true ) new HTTPSession( myServerSocket.accept()); } catch ( IOException ioe ) {} } }); myThread.setDaemon( true ); myThread.start(); } /** * Stops the server. */ public void stop() { try { myServerSocket.close(); myThread.join(); } catch ( IOException ioe ) {} catch ( InterruptedException e ) {} } /** * Starts as a standalone file server and waits for Enter. */ public static void main( String[] args ) { System.out.println( "NanoHTTPD 1.24 (C) 2001,2005-2011 Jarno Elonen and (C) 2010 Konstantinos Togias\n" + "(Command line options: [-p port] [-d root-dir] [--licence])\n" ); // Defaults int port = 80; File wwwroot = new File(".").getAbsoluteFile(); // Show licence if requested for ( int i=0; i<args.length; ++i ) if(args[i].equalsIgnoreCase("-p")) port = Integer.parseInt( args[i+1] ); else if(args[i].equalsIgnoreCase("-d")) wwwroot = new File( args[i+1] ).getAbsoluteFile(); else if ( args[i].toLowerCase().endsWith( "licence" )) { System.out.println( LICENCE + "\n" ); break; } try { new NanoHTTPD( port, wwwroot ); } catch( IOException ioe ) { System.err.println( "Couldn't start server:\n" + ioe ); System.exit( -1 ); } System.out.println( "Now serving files in port " + port + " from \"" + wwwroot + "\"" ); System.out.println( "Hit Enter to stop.\n" ); try { System.in.read(); } catch( Throwable t ) {} } /** * Handles one session, i.e. parses the HTTP request * and returns the response. */ private class HTTPSession implements Runnable { public HTTPSession( Socket s ) { mySocket = s; Thread t = new Thread( this ); t.setDaemon( true ); t.start(); } public void run() { try { InputStream is = mySocket.getInputStream(); if ( is == null) return; // Read the first 8192 bytes. // The full header should fit in here. // Apache's default header limit is 8KB. int bufsize = 8192; byte[] buf = new byte[bufsize]; int rlen = is.read(buf, 0, bufsize); if (rlen <= 0) return; // Create a BufferedReader for parsing the header. ByteArrayInputStream hbis = new ByteArrayInputStream(buf, 0, rlen); BufferedReader hin = new BufferedReader( new InputStreamReader( hbis )); Properties pre = new Properties(); Properties parms = new Properties(); Properties header = new Properties(); Properties files = new Properties(); // Decode the header into parms and header java properties decodeHeader(hin, pre, parms, header); String method = pre.getProperty("method"); String uri = pre.getProperty("uri"); long size = 0x7FFFFFFFFFFFFFFFl; String contentLength = header.getProperty("content-length"); if (contentLength != null) { try { size = Integer.parseInt(contentLength); } catch (NumberFormatException ex) {} } // We are looking for the byte separating header from body. // It must be the last byte of the first two sequential new lines. int splitbyte = 0; boolean sbfound = false; while (splitbyte < rlen) { if (buf[splitbyte] == '\r' && buf[++splitbyte] == '\n' && buf[++splitbyte] == '\r' && buf[++splitbyte] == '\n') { sbfound = true; break; } splitbyte++; } splitbyte++; // Write the part of body already read to ByteArrayOutputStream f ByteArrayOutputStream f = new ByteArrayOutputStream(); if (splitbyte < rlen) f.write(buf, splitbyte, rlen-splitbyte); // While Firefox sends on the first read all the data fitting // our buffer, Chrome and Opera sends only the headers even if // there is data for the body. So we do some magic here to find // out whether we have already consumed part of body, if we // have reached the end of the data to be sent or we should // expect the first byte of the body at the next read. if (splitbyte < rlen) size -= rlen - splitbyte +1; else if (!sbfound || size == 0x7FFFFFFFFFFFFFFFl) size = 0; // Now read all the body and write it to f buf = new byte[512]; while ( rlen >= 0 && size > 0 ) { rlen = is.read(buf, 0, 512); size -= rlen; if (rlen > 0) f.write(buf, 0, rlen); } // Get the raw body as a byte [] byte [] fbuf = f.toByteArray(); // Create a BufferedReader for easily reading it as string. ByteArrayInputStream bin = new ByteArrayInputStream(fbuf); BufferedReader in = new BufferedReader( new InputStreamReader(bin)); // If the method is POST, there may be parameters // in data section, too, read it: if ( method.equalsIgnoreCase( "POST" )) { String contentType = ""; String contentTypeHeader = header.getProperty("content-type"); StringTokenizer st = new StringTokenizer( contentTypeHeader , "; " ); if ( st.hasMoreTokens()) { contentType = st.nextToken(); } if (contentType.equalsIgnoreCase("multipart/form-data")) { // Handle multipart/form-data if ( !st.hasMoreTokens()) sendError( HTTP_BADREQUEST, "BAD REQUEST: Content type is multipart/form-data but boundary missing. Usage: GET /example/file.html" ); String boundaryExp = st.nextToken(); st = new StringTokenizer( boundaryExp , "=" ); if (st.countTokens() != 2) sendError( HTTP_BADREQUEST, "BAD REQUEST: Content type is multipart/form-data but boundary syntax error. Usage: GET /example/file.html" ); st.nextToken(); String boundary = st.nextToken(); decodeMultipartData(boundary, fbuf, in, parms, files); } else { // Handle application/x-www-form-urlencoded String postLine = ""; char pbuf[] = new char[512]; int read = in.read(pbuf); while ( read >= 0 && !postLine.endsWith("\r\n") ) { postLine += String.valueOf(pbuf, 0, read); read = in.read(pbuf); } postLine = postLine.trim(); decodeParms( postLine, parms ); } } // Ok, now do the serve() Response r = serve( uri, method, header, parms, files ); if ( r == null ) sendError( HTTP_INTERNALERROR, "SERVER INTERNAL ERROR: Serve() returned a null response." ); else sendResponse( r.status, r.mimeType, r.header, r.data ); in.close(); is.close(); } catch ( IOException ioe ) { try { sendError( HTTP_INTERNALERROR, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage()); } catch ( Throwable t ) {} } catch ( InterruptedException ie ) { // Thrown by sendError, ignore and exit the thread. } } /** * Decodes the sent headers and loads the data into * java Properties' key - value pairs **/ private void decodeHeader(BufferedReader in, Properties pre, Properties parms, Properties header) throws InterruptedException { try { // Read the request line String inLine = in.readLine(); if (inLine == null) return; StringTokenizer st = new StringTokenizer( inLine ); if ( !st.hasMoreTokens()) sendError( HTTP_BADREQUEST, "BAD REQUEST: Syntax error. Usage: GET /example/file.html" ); String method = st.nextToken(); pre.put("method", method); if ( !st.hasMoreTokens()) sendError( HTTP_BADREQUEST, "BAD REQUEST: Missing URI. Usage: GET /example/file.html" ); String uri = st.nextToken(); // Decode parameters from the URI int qmi = uri.indexOf( '?' ); if ( qmi >= 0 ) { decodeParms( uri.substring( qmi+1 ), parms ); uri = decodePercent( uri.substring( 0, qmi )); } else uri = decodePercent(uri); // If there's another token, it's protocol version, // followed by HTTP headers. Ignore version but parse headers. // NOTE: this now forces header names lowercase since they are // case insensitive and vary by client. if ( st.hasMoreTokens()) { String line = in.readLine(); while ( line != null && line.trim().length() > 0 ) { int p = line.indexOf( ':' ); if ( p >= 0 ) header.put( line.substring(0,p).trim().toLowerCase(), line.substring(p+1).trim()); line = in.readLine(); } } pre.put("uri", uri); } catch ( IOException ioe ) { sendError( HTTP_INTERNALERROR, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage()); } } /** * Decodes the Multipart Body data and put it * into java Properties' key - value pairs. **/ private void decodeMultipartData(String boundary, byte[] fbuf, BufferedReader in, Properties parms, Properties files) throws InterruptedException { try { int[] bpositions = getBoundaryPositions(fbuf,boundary.getBytes()); int boundarycount = 1; String mpline = in.readLine(); while ( mpline != null ) { if (mpline.indexOf(boundary) == -1) sendError( HTTP_BADREQUEST, "BAD REQUEST: Content type is multipart/form-data but next chunk does not start with boundary. Usage: GET /example/file.html" ); boundarycount++; Properties item = new Properties(); mpline = in.readLine(); while (mpline != null && mpline.trim().length() > 0) { int p = mpline.indexOf( ':' ); if (p != -1) item.put( mpline.substring(0,p).trim().toLowerCase(), mpline.substring(p+1).trim()); mpline = in.readLine(); } if (mpline != null) { String contentDisposition = item.getProperty("content-disposition"); if (contentDisposition == null) { sendError( HTTP_BADREQUEST, "BAD REQUEST: Content type is multipart/form-data but no content-disposition info found. Usage: GET /example/file.html" ); } StringTokenizer st = new StringTokenizer( contentDisposition , "; " ); Properties disposition = new Properties(); while ( st.hasMoreTokens()) { String token = st.nextToken(); int p = token.indexOf( '=' ); if (p!=-1) disposition.put( token.substring(0,p).trim().toLowerCase(), token.substring(p+1).trim()); } String pname = disposition.getProperty("name"); pname = pname.substring(1,pname.length()-1); String value = ""; if (item.getProperty("content-type") == null) { while (mpline != null && mpline.indexOf(boundary) == -1) { mpline = in.readLine(); if ( mpline != null) { int d = mpline.indexOf(boundary); if (d == -1) value+=mpline; else value+=mpline.substring(0,d-2); } } } else { if (boundarycount> bpositions.length) sendError( HTTP_INTERNALERROR, "Error processing request" ); int offset = stripMultipartHeaders(fbuf, bpositions[boundarycount-2]); String path = saveTmpFile(fbuf, offset, bpositions[boundarycount-1]-offset-4); files.put(pname, path); value = disposition.getProperty("filename"); value = value.substring(1,value.length()-1); do { mpline = in.readLine(); } while (mpline != null && mpline.indexOf(boundary) == -1); } parms.put(pname, value); } } } catch ( IOException ioe ) { sendError( HTTP_INTERNALERROR, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage()); } } /** * Find the byte positions where multipart boundaries start. **/ public int[] getBoundaryPositions(byte[] b, byte[] boundary) { int matchcount = 0; int matchbyte = -1; Vector matchbytes = new Vector(); for (int i=0; i<b.length; i++) { if (b[i] == boundary[matchcount]) { if (matchcount == 0) matchbyte = i; matchcount++; if (matchcount==boundary.length) { matchbytes.addElement(new Integer(matchbyte)); matchcount = 0; matchbyte = -1; } } else { i -= matchcount; matchcount = 0; matchbyte = -1; } } int[] ret = new int[matchbytes.size()]; for (int i=0; i < ret.length; i++) { ret[i] = ((Integer)matchbytes.elementAt(i)).intValue(); } return ret; } /** * Retrieves the content of a sent file and saves it * to a temporary file. * The full path to the saved file is returned. **/ private String saveTmpFile(byte[] b, int offset, int len) { String path = ""; if (len > 0) { String tmpdir = System.getProperty("java.io.tmpdir"); try { File temp = File.createTempFile("NanoHTTPD", "", new File(tmpdir)); OutputStream fstream = new FileOutputStream(temp); fstream.write(b, offset, len); fstream.close(); path = temp.getAbsolutePath(); } catch (Exception e) { // Catch exception if any System.err.println("Error: " + e.getMessage()); } } return path; } /** * It returns the offset separating multipart file headers * from the file's data. **/ private int stripMultipartHeaders(byte[] b, int offset) { int i = 0; for (i=offset; i<b.length; i++) { if (b[i] == '\r' && b[++i] == '\n' && b[++i] == '\r' && b[++i] == '\n') break; } return i+1; } /** * Decodes the percent encoding scheme. <br/> * For example: "an+example%20string" -> "an example string" */ private String decodePercent( String str ) throws InterruptedException { try { StringBuffer sb = new StringBuffer(); for( int i=0; i<str.length(); i++ ) { char c = str.charAt( i ); switch ( c ) { case '+': sb.append( ' ' ); break; case '%': sb.append((char)Integer.parseInt( str.substring(i+1,i+3), 16 )); i += 2; break; default: sb.append( c ); break; } } return sb.toString(); } catch( Exception e ) { sendError( HTTP_BADREQUEST, "BAD REQUEST: Bad percent-encoding." ); return null; } } /** * Decodes parameters in percent-encoded URI-format * ( e.g. "name=Jack%20Daniels&pass=Single%20Malt" ) and * adds them to given Properties. NOTE: this doesn't support multiple * identical keys due to the simplicity of Properties -- if you need multiples, * you might want to replace the Properties with a Hashtable of Vectors or such. */ private void decodeParms( String parms, Properties p ) throws InterruptedException { if ( parms == null ) return; StringTokenizer st = new StringTokenizer( parms, "&" ); while ( st.hasMoreTokens()) { String e = st.nextToken(); int sep = e.indexOf( '=' ); if ( sep >= 0 ) p.put( decodePercent( e.substring( 0, sep )).trim(), decodePercent( e.substring( sep+1 ))); } } /** * Returns an error message as a HTTP response and * throws InterruptedException to stop further request processing. */ private void sendError( String status, String msg ) throws InterruptedException { sendResponse( status, MIME_PLAINTEXT, null, new ByteArrayInputStream( msg.getBytes())); throw new InterruptedException(); } /** * Sends given response to the socket. */ private void sendResponse( String status, String mime, Properties header, InputStream data ) { try { if ( status == null ) throw new Error( "sendResponse(): Status can't be null." ); OutputStream out = mySocket.getOutputStream(); PrintWriter pw = new PrintWriter( out ); pw.print("HTTP/1.0 " + status + " \r\n"); if ( mime != null ) pw.print("Content-Type: " + mime + "\r\n"); if ( header == null || header.getProperty( "Date" ) == null ) pw.print( "Date: " + gmtFrmt.format( new Date()) + "\r\n"); if ( header != null ) { Enumeration e = header.keys(); while ( e.hasMoreElements()) { String key = (String)e.nextElement(); String value = header.getProperty( key ); pw.print( key + ": " + value + "\r\n"); } } pw.print("\r\n"); pw.flush(); if ( data != null ) { int pending = data.available(); // This is to support partial sends, see serveFile() byte[] buff = new byte[2048]; while (pending>0) { int read = data.read( buff, 0, ( (pending>2048) ? 2048 : pending )); if (read <= 0) break; out.write( buff, 0, read ); pending -= read; } } out.flush(); out.close(); if ( data != null ) data.close(); } catch( IOException ioe ) { // Couldn't write? No can do. try { mySocket.close(); } catch( Throwable t ) {} } } private Socket mySocket; } /** * URL-encodes everything between "/"-characters. * Encodes spaces as '%20' instead of '+'. */ private String encodeUri( String uri ) { String newUri = ""; StringTokenizer st = new StringTokenizer( uri, "/ ", true ); while ( st.hasMoreTokens()) { String tok = st.nextToken(); if ( tok.equals( "/" )) newUri += "/"; else if ( tok.equals( " " )) newUri += "%20"; else { newUri += URLEncoder.encode( tok ); // For Java 1.4 you'll want to use this instead: // try { newUri += URLEncoder.encode( tok, "UTF-8" ); } catch ( java.io.UnsupportedEncodingException uee ) {} } } return newUri; } private int myTcpPort; private final ServerSocket myServerSocket; private Thread myThread; private File myRootDir; // ================================================== // File server code // ================================================== /** * Serves file from homeDir and its' subdirectories (only). * Uses only URI, ignores all headers and HTTP parameters. */ public Response serveFile( String uri, Properties header, File homeDir, boolean allowDirectoryListing ) { Response res = null; // Make sure we won't die of an exception later if ( !homeDir.isDirectory()) res = new Response( HTTP_INTERNALERROR, MIME_PLAINTEXT, "INTERNAL ERRROR: serveFile(): given homeDir is not a directory." ); if ( res == null ) { // Remove URL arguments uri = uri.trim().replace( File.separatorChar, '/' ); if ( uri.indexOf( '?' ) >= 0 ) uri = uri.substring(0, uri.indexOf( '?' )); // Prohibit getting out of current directory if ( uri.startsWith( ".." ) || uri.endsWith( ".." ) || uri.indexOf( "../" ) >= 0 ) res = new Response( HTTP_FORBIDDEN, MIME_PLAINTEXT, "FORBIDDEN: Won't serve ../ for security reasons." ); } File f = new File( homeDir, uri ); if ( res == null && !f.exists()) res = new Response( HTTP_NOTFOUND, MIME_PLAINTEXT, "Error 404, file not found." ); // List the directory, if necessary if ( res == null && f.isDirectory()) { // Browsers get confused without '/' after the // directory, send a redirect. if ( !uri.endsWith( "/" )) { uri += "/"; res = new Response( HTTP_REDIRECT, MIME_HTML, "<html><body>Redirected: <a href=\"" + uri + "\">" + uri + "</a></body></html>"); res.addHeader( "Location", uri ); } if ( res == null ) { // First try index.html and index.htm if ( new File( f, "index.html" ).exists()) f = new File( homeDir, uri + "/index.html" ); else if ( new File( f, "index.htm" ).exists()) f = new File( homeDir, uri + "/index.htm" ); // No index file, list the directory if it is readable else if ( allowDirectoryListing && f.canRead() ) { String[] files = f.list(); String msg = "<html><body><h1>Directory " + uri + "</h1><br/>"; if ( uri.length() > 1 ) { String u = uri.substring( 0, uri.length()-1 ); int slash = u.lastIndexOf( '/' ); if ( slash >= 0 && slash < u.length()) msg += "<b><a href=\"" + uri.substring(0, slash+1) + "\">..</a></b><br/>"; } if (files!=null) { for ( int i=0; i<files.length; ++i ) { File curFile = new File( f, files[i] ); boolean dir = curFile.isDirectory(); if ( dir ) { msg += "<b>"; files[i] += "/"; } msg += "<a href=\"" + encodeUri( uri + files[i] ) + "\">" + files[i] + "</a>"; // Show file size if ( curFile.isFile()) { long len = curFile.length(); msg += " <font size=2>("; if ( len < 1024 ) msg += len + " bytes"; else if ( len < 1024 * 1024 ) msg += len/1024 + "." + (len%1024/10%100) + " KB"; else msg += len/(1024*1024) + "." + len%(1024*1024)/10%100 + " MB"; msg += ")</font>"; } msg += "<br/>"; if ( dir ) msg += "</b>"; } } msg += "</body></html>"; res = new Response( HTTP_OK, MIME_HTML, msg ); } else { res = new Response( HTTP_FORBIDDEN, MIME_PLAINTEXT, "FORBIDDEN: No directory listing." ); } } } try { if ( res == null ) { // Get MIME type from file name extension, if possible String mime = null; int dot = f.getCanonicalPath().lastIndexOf( '.' ); if ( dot >= 0 ) mime = (String)theMimeTypes.get( f.getCanonicalPath().substring( dot + 1 ).toLowerCase()); if ( mime == null ) mime = MIME_DEFAULT_BINARY; // Calculate etag String etag = Integer.toHexString((f.getAbsolutePath() + f.lastModified() + "" + f.length()).hashCode()); // Support (simple) skipping: long startFrom = 0; long endAt = -1; String range = header.getProperty( "range" ); if ( range != null ) { if ( range.startsWith( "bytes=" )) { range = range.substring( "bytes=".length()); int minus = range.indexOf( '-' ); try { if ( minus > 0 ) { startFrom = Long.parseLong( range.substring( 0, minus )); endAt = Long.parseLong( range.substring( minus+1 )); } } catch ( NumberFormatException nfe ) {} } } // Change return code and add Content-Range header when skipping is requested long fileLen = f.length(); if (range != null && startFrom >= 0) { if ( startFrom >= fileLen) { res = new Response( HTTP_RANGE_NOT_SATISFIABLE, MIME_PLAINTEXT, "" ); res.addHeader( "Content-Range", "bytes 0-0/" + fileLen); res.addHeader( "ETag", etag); } else { if ( endAt < 0 ) endAt = fileLen-1; long newLen = endAt - startFrom + 1; if ( newLen < 0 ) newLen = 0; final long dataLen = newLen; FileInputStream fis = new FileInputStream( f ) { public int available() throws IOException { return (int)dataLen; } }; fis.skip( startFrom ); res = new Response( HTTP_PARTIALCONTENT, mime, fis ); res.addHeader( "Content-Length", "" + dataLen); res.addHeader( "Content-Range", "bytes " + startFrom + "-" + endAt + "/" + fileLen); res.addHeader( "ETag", etag); } } else { res = new Response( HTTP_OK, mime, new FileInputStream( f )); res.addHeader( "Content-Length", "" + fileLen); res.addHeader( "ETag", etag); } } } catch( IOException ioe ) { res = new Response( HTTP_FORBIDDEN, MIME_PLAINTEXT, "FORBIDDEN: Reading file failed." ); } res.addHeader( "Accept-Ranges", "bytes"); // Announce that the file server accepts partial content requestes return res; } /** * Hashtable mapping (String)FILENAME_EXTENSION -> (String)MIME_TYPE */ private static Hashtable theMimeTypes = new Hashtable(); static { StringTokenizer st = new StringTokenizer( "css text/css "+ "htm text/html "+ "html text/html "+ "xml text/xml "+ "txt text/plain "+ "asc text/plain "+ "gif image/gif "+ "jpg image/jpeg "+ "jpeg image/jpeg "+ "png image/png "+ "mp3 audio/mpeg "+ "m3u audio/mpeg-url " + "mp4 video/mp4 " + "ogv video/ogg " + "flv video/x-flv " + "mov video/quicktime " + "swf application/x-shockwave-flash " + "js application/javascript "+ "pdf application/pdf "+ "doc application/msword "+ "ogg application/x-ogg "+ "zip application/octet-stream "+ "exe application/octet-stream "+ "class application/octet-stream " ); while ( st.hasMoreTokens()) theMimeTypes.put( st.nextToken(), st.nextToken()); } /** * GMT date formatter */ private static java.text.SimpleDateFormat gmtFrmt; static { gmtFrmt = new java.text.SimpleDateFormat( "E, d MMM yyyy HH:mm:ss 'GMT'", Locale.US); gmtFrmt.setTimeZone(TimeZone.getTimeZone("GMT")); } /** * The distribution licence */ private static final String LICENCE = "Copyright (C) 2001,2005-2011 by Jarno Elonen <elonen@iki.fi>\n"+ "and Copyright (C) 2010 by Konstantinos Togias <info@ktogias.gr>\n"+ "\n"+ "Redistribution and use in source and binary forms, with or without\n"+ "modification, are permitted provided that the following conditions\n"+ "are met:\n"+ "\n"+ "Redistributions of source code must retain the above copyright notice,\n"+ "this list of conditions and the following disclaimer. Redistributions in\n"+ "binary form must reproduce the above copyright notice, this list of\n"+ "conditions and the following disclaimer in the documentation and/or other\n"+ "materials provided with the distribution. The name of the author may not\n"+ "be used to endorse or promote products derived from this software without\n"+ "specific prior written permission. \n"+ " \n"+ "THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR\n"+ "IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES\n"+ "OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n"+ "IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,\n"+ "INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n"+ "NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"+ "DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"+ "THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"+ "(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"+ "OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."; }