Back to project page Cardeto.
The source code is released under:
Apache License
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package com.ggt.cardeto.externallib; /* w ww . j a va 2s . c o m*/ import java.io.BufferedReader; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.PrintStream; 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.Hashtable; import java.util.Locale; import java.util.Properties; import java.util.StringTokenizer; import java.util.TimeZone; import java.util.Vector; /** * A simple, tiny, nicely embeddable HTTP 1.0 (partially 1.1) server in Java * * <p> * NanoHTTPD version 1.25, Copyright © 2001,2005-2012 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 (+ rudimentary PUT * support in 1.25)</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> * * 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) { myOut.println(method + " '" + uri + "' "); Enumeration e = header.propertyNames(); while (e.hasMoreElements()) { String value = (String) e.nextElement(); myOut.println(" HDR: '" + value + "' = '" + header.getProperty(value) + "'"); } e = parms.propertyNames(); while (e.hasMoreElements()) { String value = (String) e.nextElement(); myOut.println(" PRM: '" + value + "' = '" + parms.getProperty(value) + "'"); } e = files.propertyNames(); while (e.hasMoreElements()) { String value = (String) e.nextElement(); myOut.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_NOTMODIFIED = "304 Not Modified", 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) { myOut.println("NanoHTTPD 1.25 (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")) { myOut.println(LICENCE + "\n"); break; } try { new NanoHTTPD(port, wwwroot); } catch (IOException ioe) { myErr.println("Couldn't start server:\n" + ioe); System.exit(-1); } myOut.println("Now serving files in port " + port + " from \"" + wwwroot + "\""); myOut.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. // Do NOT assume that a single read will get the entire header // at once! final int bufsize = 8192; byte[] buf = new byte[bufsize]; int splitbyte = 0; int rlen = 0; { int read = is.read(buf, 0, bufsize); while (read > 0) { rlen += read; splitbyte = findHeaderEnd(buf, rlen); if (splitbyte > 0) break; read = is.read(buf, rlen, bufsize - rlen); } } // 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) { } } // 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 send only the headers even if // there is data for the body. 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 (splitbyte == 0 || 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 != null && 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); } } if (method != null && method.equalsIgnoreCase("PUT")) files.put("content", saveTmpFile(fbuf, 0, f.size())); // 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 byte index separating header from body. It must be the last byte * of the first two sequential new lines. **/ private int findHeaderEnd(final byte[] buf, int rlen) { int splitbyte = 0; while (splitbyte + 3 < rlen) { if (buf[splitbyte] == '\r' && buf[splitbyte + 1] == '\n' && buf[splitbyte + 2] == '\r' && buf[splitbyte + 3] == '\n') return splitbyte + 4; splitbyte++; } return 0; } /** * 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) { //TODO 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 myErr.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[theBufferSize]; while (pending > 0) { int read = data.read(buff, 0, ((pending > theBufferSize) ? theBufferSize : 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."); } //TODO 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 { if (etag.equals(header.getProperty("if-none-match"))) res = new Response(HTTP_NOTMODIFIED, mime, ""); 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()); } private static int theBufferSize = 16 * 1024; // Change these if you want to log to somewhere else than stdout protected static PrintStream myOut = System.out; protected static PrintStream myErr = System.err; /** * 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."; }