* By default, the server spawns a new Thread for every incoming request. * These are set to daemon status, and named according to the request * number. The name is useful when profiling the application. *

*/ public static class DefaultAsyncRunner implements AsyncRunner { private long requestCount; private final List running = Collections.synchronizedList(new ArrayList()); /** * @return a list with currently running clients. */ public List getRunning() { return running; } @Override public void closeAll() { // copy of the list for concurrency for (ClientHandler clientHandler : new ArrayList(this.running)) { clientHandler.close(); } } @Override public void closed(ClientHandler clientHandler) { this.running.remove(clientHandler); } @Override public void exec(ClientHandler clientHandler) { ++this.requestCount; Thread t = new Thread(clientHandler); //t.setDaemon(true); t.setName("NanoHttpd Request Processor (#" + this.requestCount + ")"); this.running.add(clientHandler); t.start(); } } /** * Default strategy for creating and cleaning up temporary files. *

* By default, files are created by File.createTempFile() in * the directory specified. *

*/ public static class DefaultTempFile implements TempFile { private final File file; private final OutputStream fstream; public DefaultTempFile(String tempdir) throws IOException { this.file = File.createTempFile("NanoHTTPD-", "", new File(tempdir)); this.fstream = new FileOutputStream(this.file); System.err.println("Temp file created: " + file); } @Override public void delete() throws Exception { safeClose(this.fstream); System.err.println("Temp file deleted: " + file); if (!this.file.delete()) { throw new Exception("could not delete temporary file"); } } @Override public String getName() { return this.file.getAbsolutePath(); } @Override public OutputStream open() throws Exception { return this.fstream; } } /** * Default strategy for creating and cleaning up temporary files. *

* This class stores its files in the standard location (that is, wherever * java.io.tmpdir points to). Files are added to an internal * list, and deleted when no longer needed (that is, when * clear() is invoked at the end of processing a request). *

*/ public static class DefaultTempFileManager implements TempFileManager { private final String tmpdir; private final List tempFiles; public DefaultTempFileManager() { this.tmpdir = tempDir().getPath(); // use JavaX, dude // System.getProperty("java.io.tmpdir"); this.tempFiles = new ArrayList(); } @Override public void clear() { for (TempFile file : this.tempFiles) { try { file.delete(); } catch (Exception ignored) { NanoHTTPD.LOG.log(Level.WARNING, "could not delete file ", ignored); } } this.tempFiles.clear(); } @Override public TempFile createTempFile() throws Exception { DefaultTempFile tempFile = new DefaultTempFile(this.tmpdir); this.tempFiles.add(tempFile); return tempFile; } } /** * Default strategy for creating and cleaning up temporary files. */ private class DefaultTempFileManagerFactory implements TempFileManagerFactory { @Override public TempFileManager create() { return new DefaultTempFileManager(); } } private static final String CONTENT_DISPOSITION_REGEX = "([ |\t]*Content-Disposition[ |\t]*:)(.*)"; private static final Pattern CONTENT_DISPOSITION_PATTERN = Pattern.compile(CONTENT_DISPOSITION_REGEX, Pattern.CASE_INSENSITIVE); private static final String CONTENT_TYPE_REGEX = "([ |\t]*content-type[ |\t]*:)(.*)"; private static final Pattern CONTENT_TYPE_PATTERN = Pattern.compile(CONTENT_TYPE_REGEX, Pattern.CASE_INSENSITIVE); private static final String CONTENT_DISPOSITION_ATTRIBUTE_REGEX = "[ |\t]*([a-zA-Z]*)[ |\t]*=[ |\t]*['|\"]([^\"^']*)['|\"]"; private static final Pattern CONTENT_DISPOSITION_ATTRIBUTE_PATTERN = Pattern.compile(CONTENT_DISPOSITION_ATTRIBUTE_REGEX); protected class HTTPSession implements IHTTPSession { public static final int BUFSIZE = 8192; private final TempFileManager tempFileManager; private final OutputStream outputStream; private final PushbackInputStream inputStream; private int splitbyte; private int rlen; private String uri; private Method method; private Map parms; private Map headers; private CookieHandler cookies; private String queryParameterString; private String remoteIp; private String protocolVersion; public HTTPSession(TempFileManager tempFileManager, InputStream inputStream, OutputStream outputStream) { this.tempFileManager = tempFileManager; this.inputStream = new PushbackInputStream(inputStream, HTTPSession.BUFSIZE); this.outputStream = outputStream; } public HTTPSession(TempFileManager tempFileManager, InputStream inputStream, OutputStream outputStream, InetAddress inetAddress) { this.tempFileManager = tempFileManager; this.inputStream = new PushbackInputStream(inputStream, HTTPSession.BUFSIZE); this.outputStream = outputStream; this.remoteIp = inetAddress.isLoopbackAddress() || inetAddress.isAnyLocalAddress() ? "127.0.0.1" : inetAddress.getHostAddress().toString(); this.headers = new HashMap(); } /** * Decodes the sent headers and loads the data into Key/value pairs */ private void decodeHeader(BufferedReader in, Map pre, Map parms, Map headers) throws ResponseException { try { // Read the request line String inLine = in.readLine(); if (inLine == null) { return; } StringTokenizer st = new StringTokenizer(inLine); if (!st.hasMoreTokens()) { throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Syntax error. Usage: GET /example/file.html"); } pre.put("method", st.nextToken()); if (!st.hasMoreTokens()) { throw new ResponseException(Status.BAD_REQUEST, "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, its protocol version, // followed by HTTP headers. // NOTE: this now forces header names lower case since they are // case insensitive and vary by client. if (st.hasMoreTokens()) { protocolVersion = st.nextToken(); } else { protocolVersion = "HTTP/1.1"; NanoHTTPD.LOG.log(Level.FINE, "no protocol version specified, strange. Assuming HTTP/1.1."); } String line = in.readLine(); while (line != null && line.trim().length() > 0) { int p = line.indexOf(':'); if (p >= 0) { headers.put(line.substring(0, p).trim().toLowerCase(Locale.US), line.substring(p + 1).trim()); } line = in.readLine(); } pre.put("uri", uri); } catch (IOException ioe) { throw new ResponseException(Status.INTERNAL_ERROR, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage(), ioe); } } /** * Decodes the Multipart Body data and put it into Key/Value pairs. */ private void decodeMultipartFormData(String boundary, ByteBuffer fbuf, Map parms, Map files) throws ResponseException { try { int[] boundary_idxs = getBoundaryPositions(fbuf, boundary.getBytes()); if (boundary_idxs.length < 2) { throw new ResponseException( Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but contains less than two boundary strings."); } final int MAX_HEADER_SIZE = 1024; byte[] part_header_buff = new byte[MAX_HEADER_SIZE]; for (int bi = 0; bi < boundary_idxs.length - 1; bi++) { fbuf.position(boundary_idxs[bi]); int len = (fbuf.remaining() < MAX_HEADER_SIZE) ? fbuf.remaining() : MAX_HEADER_SIZE; fbuf.get(part_header_buff, 0, len); ByteArrayInputStream bais = new ByteArrayInputStream(part_header_buff, 0, len); BufferedReader in = new BufferedReader(new InputStreamReader(bais, Charset.forName("US-ASCII"))); // First line is boundary string String mpline = in.readLine(); if (!mpline.contains(boundary)) { throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but chunk does not start with boundary."); } String part_name = null, file_name = null, content_type = null; // Parse the reset of the header lines mpline = in.readLine(); while (mpline != null && mpline.trim().length() > 0) { Matcher matcher = CONTENT_DISPOSITION_PATTERN.matcher(mpline); if (matcher.matches()) { String attributeString = matcher.group(2); matcher = CONTENT_DISPOSITION_ATTRIBUTE_PATTERN.matcher(attributeString); while (matcher.find()) { String key = matcher.group(1); if (key.equalsIgnoreCase("name")) { part_name = matcher.group(2); } else if (key.equalsIgnoreCase("filename")) { file_name = matcher.group(2); } } } matcher = CONTENT_TYPE_PATTERN.matcher(mpline); if (matcher.matches()) { content_type = matcher.group(2).trim(); } mpline = in.readLine(); } // Read the part data int part_header_len = len - (int) in.skip(MAX_HEADER_SIZE); if (part_header_len >= len - 4) { throw new ResponseException(Status.INTERNAL_ERROR, "Multipart header size exceeds MAX_HEADER_SIZE."); } int part_data_start = boundary_idxs[bi] + part_header_len; int part_data_end = boundary_idxs[bi + 1] - 4; fbuf.position(part_data_start); if (content_type == null) { // Read the part into a string byte[] data_bytes = new byte[part_data_end - part_data_start]; fbuf.get(data_bytes); parms.put(part_name, new String(data_bytes)); } else { // Read it into a file String path = saveTmpFile(fbuf, part_data_start, part_data_end - part_data_start); if (!files.containsKey(part_name)) { files.put(part_name, path); } else { int count = 2; while (files.containsKey(part_name + count)) { count++; } files.put(part_name + count, path); } parms.put(part_name, file_name); } } } catch (ResponseException re) { throw re; } catch (Exception e) { throw new ResponseException(Status.INTERNAL_ERROR, e.toString()); } } /** * Decodes parameters in percent-encoded URI-format ( e.g. * "name=Jack%20Daniels&pass=Single%20Malt" ) and adds them to given * Map. NOTE: this doesn't support multiple identical keys due to the * simplicity of Map. */ private void decodeParms(String parms, Map p) { if (parms == null) { this.queryParameterString = ""; return; } this.queryParameterString = parms; 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))); } else { p.put(decodePercent(e).trim(), ""); } } } @Override public void execute() throws IOException { Response r = null; try { // 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! byte[] buf = new byte[HTTPSession.BUFSIZE]; this.splitbyte = 0; this.rlen = 0; int read = -1; try { read = this.inputStream.read(buf, 0, HTTPSession.BUFSIZE); } catch (Exception e) { safeClose(this.inputStream); safeClose(this.outputStream); throw new SocketException("NanoHttpd Shutdown"); } if (read == -1) { // socket was been closed safeClose(this.inputStream); safeClose(this.outputStream); throw new SocketException("NanoHttpd Shutdown"); } while (read > 0) { this.rlen += read; this.splitbyte = findHeaderEnd(buf, this.rlen); if (this.splitbyte > 0) { break; } read = this.inputStream.read(buf, this.rlen, HTTPSession.BUFSIZE - this.rlen); } if (this.splitbyte < this.rlen) { this.inputStream.unread(buf, this.splitbyte, this.rlen - this.splitbyte); } this.parms = new HashMap(); if (null == this.headers) { this.headers = new HashMap(); } else { this.headers.clear(); } if (null != this.remoteIp) { this.headers.put("remote-addr", this.remoteIp); this.headers.put("http-client-ip", this.remoteIp); } // Create a BufferedReader for parsing the header. BufferedReader hin = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(buf, 0, this.rlen))); // Decode the header into parms and header java properties Map pre = new HashMap(); decodeHeader(hin, pre, this.parms, this.headers); this.method = Method.lookup(pre.get("method")); if (this.method == null) { throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Syntax error."); } this.uri = pre.get("uri"); this.cookies = new CookieHandler(this.headers); String connection = this.headers.get("connection"); boolean keepAlive = protocolVersion.equals("HTTP/1.1") && (connection == null || !connection.matches("(?i).*close.*")); // Ok, now do the serve() r = serve(this); if (r == null) { throw new ResponseException(Status.INTERNAL_ERROR, "SERVER INTERNAL ERROR: Serve() returned a null response."); } else { String acceptEncoding = this.headers.get("accept-encoding"); this.cookies.unloadQueue(r); r.setRequestMethod(this.method); r.setGzipEncoding(useGzipWhenAccepted(r) && acceptEncoding != null && acceptEncoding.contains("gzip")); r.setKeepAlive(keepAlive); r.send(this.outputStream); } if (!keepAlive || "close".equalsIgnoreCase(r.getHeader("connection"))) { throw new SocketException("NanoHttpd Shutdown"); } } catch (SocketException e) { // throw it out to close socket object (finalAccept) throw e; } catch (SocketTimeoutException ste) { // treat socket timeouts the same way we treat socket exceptions // i.e. close the stream & finalAccept object by throwing the // exception up the call stack. throw ste; } catch (IOException ioe) { Response resp = newFixedLengthResponse(Status.INTERNAL_ERROR, NanoHTTPD.MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage()); resp.send(this.outputStream); safeClose(this.outputStream); } catch (ResponseException re) { Response resp = newFixedLengthResponse(re.getStatus(), NanoHTTPD.MIME_PLAINTEXT, re.getMessage()); resp.send(this.outputStream); safeClose(this.outputStream); } finally { safeClose(r); this.tempFileManager.clear(); } } /** * 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. This reads * a large block at a time and uses a temporary buffer to optimize * (memory mapped) file access. */ private int[] getBoundaryPositions(ByteBuffer b, byte[] boundary) { int[] res = new int[0]; if (b.remaining() < boundary.length) { return res; } int search_window_pos = 0; byte[] search_window = new byte[4 * 1024 + boundary.length]; int first_fill = (b.remaining() < search_window.length) ? b.remaining() : search_window.length; b.get(search_window, 0, first_fill); int new_bytes = first_fill - boundary.length; do { // Search the search_window for (int j = 0; j < new_bytes; j++) { for (int i = 0; i < boundary.length; i++) { if (search_window[j + i] != boundary[i]) break; if (i == boundary.length - 1) { // Match found, add it to results int[] new_res = new int[res.length + 1]; System.arraycopy(res, 0, new_res, 0, res.length); new_res[res.length] = search_window_pos + j; res = new_res; } } } search_window_pos += new_bytes; // Copy the end of the buffer to the start System.arraycopy(search_window, search_window.length - boundary.length, search_window, 0, boundary.length); // Refill search_window new_bytes = search_window.length - boundary.length; new_bytes = (b.remaining() < new_bytes) ? b.remaining() : new_bytes; b.get(search_window, boundary.length, new_bytes); } while (new_bytes > 0); return res; } @Override public CookieHandler getCookies() { return this.cookies; } @Override public final Map getHeaders() { return this.headers; } @Override public final InputStream getInputStream() { return this.inputStream; } @Override public final Method getMethod() { return this.method; } @Override public final Map getParms() { return this.parms; } @Override public String getQueryParameterString() { return this.queryParameterString; } private RandomAccessFile getTmpBucket() { try { TempFile tempFile = this.tempFileManager.createTempFile(); return new RandomAccessFile(tempFile.getName(), "rw"); } catch (Exception e) { throw new Error(e); // we won't recover, so throw an error } } @Override public final String getUri() { return this.uri; } @Override public void parseBody(Map files) throws IOException, ResponseException { final int REQUEST_BUFFER_LEN = 512; final int MEMORY_STORE_LIMIT = 1024; RandomAccessFile randomAccessFile = null; try { long size; if (this.headers.containsKey("content-length")) { size = Integer.parseInt(this.headers.get("content-length")); } else if (this.splitbyte < this.rlen) { size = this.rlen - this.splitbyte; } else { size = 0; } ByteArrayOutputStream baos = null; DataOutput request_data_output = null; // Store the request in memory or a file, depending on size if (size < MEMORY_STORE_LIMIT) { baos = new ByteArrayOutputStream(); request_data_output = new DataOutputStream(baos); } else { randomAccessFile = getTmpBucket(); request_data_output = randomAccessFile; } // Read all the body and write it to request_data_output byte[] buf = new byte[REQUEST_BUFFER_LEN]; while (this.rlen >= 0 && size > 0) { this.rlen = this.inputStream.read(buf, 0, (int) Math.min(size, REQUEST_BUFFER_LEN)); size -= this.rlen; if (this.rlen > 0) { request_data_output.write(buf, 0, this.rlen); } } ByteBuffer fbuf = null; if (baos != null) { fbuf = ByteBuffer.wrap(baos.toByteArray(), 0, baos.size()); } else { fbuf = randomAccessFile.getChannel().map(FileChannel.MapMode.READ_ONLY, 0, randomAccessFile.length()); randomAccessFile.seek(0); } // If the method is POST, there may be parameters // in data section, too, read it: if (Method.POST.equals(this.method)) { String contentType = ""; String contentTypeHeader = this.headers.get("content-type"); StringTokenizer st = null; if (contentTypeHeader != null) { st = new StringTokenizer(contentTypeHeader, ",; "); if (st.hasMoreTokens()) { contentType = st.nextToken(); } } if ("multipart/form-data".equalsIgnoreCase(contentType)) { // Handle multipart/form-data if (!st.hasMoreTokens()) { throw new ResponseException(Status.BAD_REQUEST, "BAD REQUEST: Content type is multipart/form-data but boundary missing. Usage: GET /example/file.html"); } String boundaryStartString = "boundary="; int boundaryContentStart = contentTypeHeader.indexOf(boundaryStartString) + boundaryStartString.length(); String boundary = contentTypeHeader.substring(boundaryContentStart, contentTypeHeader.length()); if (boundary.startsWith("\"") && boundary.endsWith("\"")) { boundary = boundary.substring(1, boundary.length() - 1); } decodeMultipartFormData(boundary, fbuf, this.parms, files); } else { byte[] postBytes = new byte[fbuf.remaining()]; fbuf.get(postBytes); String postLine = new String(postBytes).trim(); // Handle application/x-www-form-urlencoded if ("application/x-www-form-urlencoded".equalsIgnoreCase(contentType)) { decodeParms(postLine, this.parms); } else if (postLine.length() != 0) { // Special case for raw POST data => create a // special files entry "postData" with raw content // data files.put("postData", postLine); } } } else if (Method.PUT.equals(this.method)) { files.put("content", saveTmpFile(fbuf, 0, fbuf.limit())); } } finally { safeClose(randomAccessFile); } } /** * 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(ByteBuffer b, int offset, int len) { String path = ""; if (len > 0) { FileOutputStream fileOutputStream = null; try { TempFile tempFile = this.tempFileManager.createTempFile(); ByteBuffer src = b.duplicate(); fileOutputStream = new FileOutputStream(tempFile.getName()); FileChannel dest = fileOutputStream.getChannel(); src.position(offset).limit(offset + len); dest.write(src.slice()); path = tempFile.getName(); } catch (Exception e) { // Catch exception if any throw new Error(e); // we won't recover, so throw an error } finally { safeClose(fileOutputStream); } } return path; } } /** * Handles one session, i.e. parses the HTTP request and returns the * response. */ public interface IHTTPSession { void execute() throws IOException; CookieHandler getCookies(); Map getHeaders(); InputStream getInputStream(); Method getMethod(); Map getParms(); String getQueryParameterString(); /** * @return the path part of the URL. */ String getUri(); /** * Adds the files in the request body to the files map. * * @param files * map to modify */ void parseBody(Map files) throws IOException, ResponseException; } /** * HTTP Request methods, with the ability to decode a String * back to its enum value. */ public enum Method { GET, PUT, POST, DELETE, HEAD, OPTIONS, TRACE, CONNECT, PATCH; static Method lookup(String method) { for (Method m : Method.values()) { if (m.toString().equalsIgnoreCase(method)) { return m; } } return null; } } /** * HTTP response. Return one of these from serve(). */ public static class Response implements Closeable { /** * Output stream that will automatically send every write to the wrapped * OutputStream according to chunked transfer: * http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.6.1 */ private static class ChunkedOutputStream extends FilterOutputStream { public ChunkedOutputStream(OutputStream out) { super(out); } @Override public void write(int b) throws IOException { byte[] data = { (byte) b }; write(data, 0, 1); } @Override public void write(byte[] b) throws IOException { write(b, 0, b.length); } @Override public void write(byte[] b, int off, int len) throws IOException { if (len == 0) return; out.write(String.format("%x\r\n", len).getBytes()); out.write(b, off, len); out.write("\r\n".getBytes()); } public void finish() throws IOException { out.write("0\r\n\r\n".getBytes()); } } /** * HTTP status code after processing, e.g. "200 OK", Status.OK */ private IStatus status; /** * MIME type of content, e.g. "text/html" */ private String mimeType; /** * Data of the response, may be null. */ private InputStream data; private long contentLength; /** * Headers for the HTTP response. Use addHeader() to add lines. */ private final Map header = new HashMap(); /** * The request method that spawned this response. */ private Method requestMethod; /** * Use chunkedTransfer */ private boolean chunkedTransfer; private boolean encodeAsGzip; private boolean keepAlive; /** * Creates a fixed length response if totalBytes>=0, otherwise chunked. */ protected Response(IStatus status, String mimeType, InputStream data, long totalBytes) { this.status = status; this.mimeType = mimeType; if (data == null) { this.data = new ByteArrayInputStream(new byte[0]); this.contentLength = 0L; } else { this.data = data; this.contentLength = totalBytes; } this.chunkedTransfer = this.contentLength < 0; keepAlive = true; } @Override public void close() throws IOException { if (this.data != null) { this.data.close(); } } /** * Adds given line to the header. */ public void addHeader(String name, String value) { this.header.put(name, value); } public InputStream getData() { return this.data; } public String getHeader(String name) { for (String headerName : header.keySet()) { if (headerName.equalsIgnoreCase(name)) { return header.get(headerName); } } return null; } public String getMimeType() { return this.mimeType; } public Method getRequestMethod() { return this.requestMethod; } public IStatus getStatus() { return this.status; } public void setGzipEncoding(boolean encodeAsGzip) { this.encodeAsGzip = encodeAsGzip; } public void setKeepAlive(boolean useKeepAlive) { this.keepAlive = useKeepAlive; } private boolean headerAlreadySent(Map header, String name) { boolean alreadySent = false; for (String headerName : header.keySet()) { alreadySent |= headerName.equalsIgnoreCase(name); } return alreadySent; } /** * Sends given response to the socket. */ protected void send(OutputStream outputStream) { String mime = this.mimeType; SimpleDateFormat gmtFrmt = new SimpleDateFormat("E, d MMM yyyy HH:mm:ss 'GMT'", Locale.US); gmtFrmt.setTimeZone(TimeZone.getTimeZone("GMT")); try { if (this.status == null) { throw new Error("sendResponse(): Status can't be null."); } PrintWriter pw = new PrintWriter(new BufferedWriter(new OutputStreamWriter(outputStream, "UTF-8")), false); pw.print("HTTP/1.1 " + this.status.getDescription() + " \r\n"); if (mime != null) { pw.print("Content-Type: " + mime + "\r\n"); } if (this.header == null || this.header.get("Date") == null) { pw.print("Date: " + gmtFrmt.format(new Date()) + "\r\n"); } if (this.header != null) { for (String key : this.header.keySet()) { String value = this.header.get(key); pw.print(key + ": " + value + "\r\n"); } } if (!headerAlreadySent(header, "connection")) { pw.print("Connection: " + (this.keepAlive ? "keep-alive" : "close") + "\r\n"); } if (headerAlreadySent(this.header, "content-length")) { encodeAsGzip = false; } if (encodeAsGzip) { pw.print("Content-Encoding: gzip\r\n"); setChunkedTransfer(true); } long pending = this.data != null ? this.contentLength : 0; if (this.requestMethod != Method.HEAD && this.chunkedTransfer) { pw.print("Transfer-Encoding: chunked\r\n"); } else if (!encodeAsGzip) { pending = sendContentLengthHeaderIfNotAlreadyPresent(pw, this.header, pending); } pw.print("\r\n"); pw.flush(); sendBodyWithCorrectTransferAndEncoding(outputStream, pending); outputStream.flush(); safeClose(this.data); } catch (IOException ioe) { NanoHTTPD.LOG.log(Level.SEVERE, "Could not send response to the client", ioe); } } private void sendBodyWithCorrectTransferAndEncoding(OutputStream outputStream, long pending) throws IOException { if (this.requestMethod != Method.HEAD && this.chunkedTransfer) { ChunkedOutputStream chunkedOutputStream = new ChunkedOutputStream(outputStream); sendBodyWithCorrectEncoding(chunkedOutputStream, -1); chunkedOutputStream.finish(); } else { sendBodyWithCorrectEncoding(outputStream, pending); } } private void sendBodyWithCorrectEncoding(OutputStream outputStream, long pending) throws IOException { if (encodeAsGzip) { GZIPOutputStream gzipOutputStream = new GZIPOutputStream(outputStream); sendBody(gzipOutputStream, -1); gzipOutputStream.finish(); } else { sendBody(outputStream, pending); } } /** * Sends the body to the specified OutputStream. The pending parameter * limits the maximum amounts of bytes sent unless it is -1, in which * case everything is sent. * * @param outputStream * the OutputStream to send data to * @param pending * -1 to send everything, otherwise sets a max limit to the * number of bytes sent * @throws IOException * if something goes wrong while sending the data. */ private void sendBody(OutputStream outputStream, long pending) throws IOException { long BUFFER_SIZE = 16 * 1024; byte[] buff = new byte[(int) BUFFER_SIZE]; boolean sendEverything = pending == -1; while (pending > 0 || sendEverything) { long bytesToRead = sendEverything ? BUFFER_SIZE : Math.min(pending, BUFFER_SIZE); int read = this.data.read(buff, 0, (int) bytesToRead); if (read <= 0) { break; } outputStream.write(buff, 0, read); if (!sendEverything) { pending -= read; } } } protected long sendContentLengthHeaderIfNotAlreadyPresent(PrintWriter pw, Map header, long size) { for (String headerName : header.keySet()) { if (headerName.equalsIgnoreCase("content-length")) { try { return Long.parseLong(header.get(headerName)); } catch (NumberFormatException ex) { return size; } } } pw.print("Content-Length: " + size + "\r\n"); return size; } public void setChunkedTransfer(boolean chunkedTransfer) { this.chunkedTransfer = chunkedTransfer; } public void setData(InputStream data) { this.data = data; } public void setMimeType(String mimeType) { this.mimeType = mimeType; } public void setRequestMethod(Method requestMethod) { this.requestMethod = requestMethod; } public void setStatus(IStatus status) { this.status = status; } } public static final class ResponseException extends Exception { private static final long serialVersionUID = 6569838532917408380L; private final Status status; public ResponseException(Status status, String message) { super(message); this.status = status; } public ResponseException(Status status, String message, Exception e) { super(message, e); this.status = status; } public Status getStatus() { return this.status; } } /** * The runnable that will be used for the main listening thread. */ public class ServerRunnable implements Runnable { private final int timeout; private IOException bindException; private boolean hasBinded = false; private ServerRunnable(int timeout) { this.timeout = timeout; } @Override public void run() { try { myServerSocket.bind(hostname != null ? new InetSocketAddress(hostname, myPort) : new InetSocketAddress(myPort)); hasBinded = true; } catch (IOException e) { this.bindException = e; return; } do { try { final Socket finalAccept = NanoHTTPD.this.myServerSocket.accept(); if (this.timeout > 0) { finalAccept.setSoTimeout(this.timeout); } final InputStream inputStream = wrapStuff("SocketInputStream", finalAccept.getInputStream(), finalAccept, NanoHTTPD.this.myServerSocket); NanoHTTPD.this.asyncRunner.exec(createClientHandler(finalAccept, inputStream)); } catch (IOException e) { NanoHTTPD.LOG.log(Level.FINE, "Communication with the client broken", e); } } while (!NanoHTTPD.this.myServerSocket.isClosed()); } } /** * A temp file. *

* Temp files are responsible for managing the actual temporary storage and * cleaning themselves up when no longer needed. *

*/ public interface TempFile { void delete() throws Exception; String getName(); OutputStream open() throws Exception; } /** * Temp file manager. *

* Temp file managers are created 1-to-1 with incoming requests, to create * and cleanup temporary files created as a result of handling the request. *

* (By default, this returns a 404 "Not Found" plain text error response.) * * @param session * The HTTP session * @return HTTP response, see class Response for details */ public Response serve(IHTTPSession session) { currentSession.set(session); Map files = new HashMap(); Method method = session.getMethod(); if (Method.PUT.equals(method) || Method.POST.equals(method)) { try { session.parseBody(files); } catch (IOException ioe) { return newFixedLengthResponse(Status.INTERNAL_ERROR, NanoHTTPD.MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage()); } catch (ResponseException re) { return newFixedLengthResponse(re.getStatus(), NanoHTTPD.MIME_PLAINTEXT, re.getMessage()); } } Map parms = session.getParms(); parms.put(NanoHTTPD.QUERY_STRING_PARAMETER, session.getQueryParameterString()); return serve(session.getUri(), method, session.getHeaders(), parms, files); } /** * Override this to customize the server. *