public void sendResponseHeaders(int rCode, long contentLen) throws IOException { if (sentHeaders) { throw new IOException("headers already sent"); } this.rcode = rCode; String statusLine = "HTTP/1.1 " + rCode + Code.msg(rCode) + "\r\n"; OutputStream tmpout = new BufferedOutputStream(ros); PlaceholderOutputStream o = getPlaceholderResponseBody(); tmpout.write(bytes(statusLine, 0), 0, statusLine.length()); boolean noContentToSend = false; // assume there is content rspHdrs.set("Date", df.format(new Date())); if (contentLen == 0) { if (http10) { o.setWrappedStream(new UndefLengthOutputStream(this, ros)); close = true; } else { rspHdrs.set("Transfer-encoding", "chunked"); o.setWrappedStream(new ChunkedOutputStream(this, ros)); } } else { if (contentLen == -1) { noContentToSend = true; contentLen = 0; } /* content len might already be set, eg to implement HEAD resp */ if (rspHdrs.getFirst("Content-length") == null) { rspHdrs.set("Content-length", Long.toString(contentLen)); } o.setWrappedStream(new FixedLengthOutputStream(this, ros, contentLen)); } write(rspHdrs, tmpout); this.rspContentLen = contentLen; tmpout.flush(); tmpout = null; sentHeaders = true; if (noContentToSend) { WriteFinishedEvent e = new WriteFinishedEvent(this); server.addEvent(e); closed = true; } server.logReply(rCode, req.requestLine(), null); }
@Override public void handle(HttpExchange t) throws IOException { if (RemoteUtil.deny(t)) { throw new IOException("Access denied"); } String id = RemoteUtil.getId("thumb/", t); LOGGER.trace("web thumb req " + id); if (id.contains("logo")) { RemoteUtil.sendLogo(t); return; } RootFolder root = parent.getRoot(RemoteUtil.userName(t), t); if (root == null) { LOGGER.debug("weird root in thumb req"); throw new IOException("Unknown root"); } final DLNAResource r = root.getDLNAResource(id, root.getDefaultRenderer()); if (r == null) { // another error LOGGER.debug("media unknown"); throw new IOException("Bad id"); } InputStream in; if (!configuration.isShowCodeThumbs() && !r.isCodeValid(r)) { // we shouldn't show the thumbs for coded objects // unless the code is entered in = r.getGenericThumbnailInputStream(null); } else { r.checkThumbnail(); in = r.getThumbnailInputStream(); } Headers hdr = t.getResponseHeaders(); hdr.add("Content-Type", r.getThumbnailContentType()); hdr.add("Accept-Ranges", "bytes"); hdr.add("Connection", "keep-alive"); t.sendResponseHeaders(200, in.available()); OutputStream os = t.getResponseBody(); LOGGER.trace("input is {} output is {}", in, os); RemoteUtil.dump(in, os); }
void write(Headers map, OutputStream os) throws IOException { Set<Map.Entry<String, List<String>>> entries = map.entrySet(); for (Map.Entry<String, List<String>> entry : entries) { String key = entry.getKey(); byte[] buf; List<String> values = entry.getValue(); for (String val : values) { int i = key.length(); buf = bytes(key, 2); buf[i++] = ':'; buf[i++] = ' '; os.write(buf, 0, i); buf = bytes(val, 2); i = val.length(); buf[i++] = '\r'; buf[i++] = '\n'; os.write(buf, 0, i); } } os.write('\r'); os.write('\n'); }