public static void initDebugging(ServletContext webapp) { if (isDebugInit) return; isDebugInit = true; String debugOn = webapp.getInitParameter("DebugOn"); if (debugOn != null) { StringTokenizer toker = new StringTokenizer(debugOn); while (toker.hasMoreTokens()) Debug.set(toker.nextToken(), true); } }
public static boolean saveFile( HttpServlet servlet, String contentPath, String path, HttpServletRequest req, HttpServletResponse res) { // @todo Need to use logServerAccess() below here. boolean debugRequest = Debug.isSet("SaveFile"); if (debugRequest) log.debug(" saveFile(): path= " + path); String filename = contentPath + path; // absolute path File want = new File(filename); // backup current version if it exists int version = getBackupVersion(want.getParent(), want.getName()); String fileSave = filename + "~" + version; File file = new File(filename); if (file.exists()) { try { IO.copyFile(filename, fileSave); } catch (IOException e) { log.error( "saveFile(): Unable to save copy of file " + filename + " to " + fileSave + "\n" + e.getMessage()); return false; } } // save new file try { OutputStream out = new BufferedOutputStream(new FileOutputStream(filename)); IO.copy(req.getInputStream(), out); out.close(); if (debugRequest) log.debug("saveFile(): ok= " + filename); res.setStatus(HttpServletResponse.SC_CREATED); log.info(UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_CREATED, -1)); return true; } catch (IOException e) { log.error( "saveFile(): Unable to PUT file " + filename + " to " + fileSave + "\n" + e.getMessage()); return false; } }
// ---TODO: This feels like a kludge. Find a better way to handle it. public void respondToEditForm(HttpServletRequest request, HttpSession session) { String pid = request.getParameter("productid"); if (pid != null) { try { int product_id = Integer.parseInt(pid); Product prod = Product.loadProduct(new Integer(product_id)); if (prod == null) { Util.noteError( session, "Internal error: No product with ID " + product_id + " was found."); } else { setProduct(prod); } } catch (NumberFormatException e) { Util.noteError(session, "Internal error: Illegal productid: " + pid); } } super.respondToEditForm(request, session); Debug.println("Version.respondToEditForm: Setting 'record' to " + getProduct()); session.setAttribute("record", getProduct()); }
/** * ************************************************************************ Sends an error to the * client. * * @param t The exception that caused the problem. * @param res The <code>HttpServletResponse</code> for the client. */ public static void handleException(Throwable t, HttpServletResponse res) { try { String message = t.getMessage(); if (message == null) message = "NULL message " + t.getClass().getName(); if (Debug.isSet("trustedMode")) { // security issue: only show stack if trusted ByteArrayOutputStream bs = new ByteArrayOutputStream(); PrintStream ps = new PrintStream(bs); t.printStackTrace(ps); message = new String(bs.toByteArray()); } log.info( UsageLog.closingMessageForRequestContext( HttpServletResponse.SC_BAD_REQUEST, message.length())); log.error("handleException", t); t.printStackTrace(); // debugging - log.error not showing stack trace !! if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_BAD_REQUEST, message); } catch (Throwable e) { log.error("handleException() had problem reporting Exception", e); t.printStackTrace(); } }
/** * Write a file to the response stream. Handles Range requests. * * @param req request * @param res response * @param file must exists and not be a directory * @param contentType must not be null * @throws IOException or error */ public static void returnFile( HttpServletRequest req, HttpServletResponse res, File file, String contentType) throws IOException { res.setContentType(contentType); // see if its a Range Request boolean isRangeRequest = false; long startPos = 0, endPos = Long.MAX_VALUE; String rangeRequest = req.getHeader("Range"); if (rangeRequest != null) { // bytes=12-34 or bytes=12- int pos = rangeRequest.indexOf("="); if (pos > 0) { int pos2 = rangeRequest.indexOf("-"); if (pos2 > 0) { String startString = rangeRequest.substring(pos + 1, pos2); String endString = rangeRequest.substring(pos2 + 1); startPos = Long.parseLong(startString); if (endString.length() > 0) endPos = Long.parseLong(endString) + 1; isRangeRequest = true; } } } // set content length long fileSize = file.length(); long contentLength = fileSize; if (isRangeRequest) { endPos = Math.min(endPos, fileSize); contentLength = endPos - startPos; } if (contentLength > Integer.MAX_VALUE) res.addHeader( "Content-Length", Long.toString(contentLength)); // allow content length > MAX_INT else res.setContentLength((int) contentLength); // note HEAD only allows this String filename = file.getPath(); boolean debugRequest = Debug.isSet("returnFile"); if (debugRequest) log.debug( "returnFile(): filename = " + filename + " contentType = " + contentType + " contentLength = " + contentLength); // indicate we allow Range Requests res.addHeader("Accept-Ranges", "bytes"); if (req.getMethod().equals("HEAD")) { log.info( "returnFile(): " + UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_OK, 0)); return; } try { if (isRangeRequest) { // set before content is sent res.addHeader("Content-Range", "bytes " + startPos + "-" + (endPos - 1) + "/" + fileSize); res.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); FileCacheRaf.Raf craf = null; try { craf = fileCacheRaf.acquire(filename); IO.copyRafB( craf.getRaf(), startPos, contentLength, res.getOutputStream(), new byte[60000]); log.info( "returnFile(): " + UsageLog.closingMessageForRequestContext( HttpServletResponse.SC_PARTIAL_CONTENT, contentLength)); return; } finally { if (craf != null) fileCacheRaf.release(craf); } } // Return the file ServletOutputStream out = res.getOutputStream(); IO.copyFileB(file, out, 60000); res.flushBuffer(); out.close(); if (debugRequest) log.debug("returnFile(): returnFile ok = " + filename); log.info( "returnFile(): " + UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_OK, contentLength)); } // @todo Split up this exception handling: those from file access vs those from dealing with // response // File access: catch and res.sendError() // response: don't catch (let bubble up out of doGet() etc) catch (FileNotFoundException e) { log.error("returnFile(): FileNotFoundException= " + filename); log.info( "returnFile(): " + UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0)); if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_NOT_FOUND); } catch (java.net.SocketException e) { log.info("returnFile(): SocketException sending file: " + filename + " " + e.getMessage()); log.info("returnFile(): " + UsageLog.closingMessageForRequestContext(STATUS_CLIENT_ABORT, 0)); } catch (IOException e) { String eName = e.getClass().getName(); // dont want compile time dependency on ClientAbortException if (eName.equals("org.apache.catalina.connector.ClientAbortException")) { log.info( "returnFile(): ClientAbortException while sending file: " + filename + " " + e.getMessage()); log.info( "returnFile(): " + UsageLog.closingMessageForRequestContext(STATUS_CLIENT_ABORT, 0)); return; } log.error("returnFile(): IOException (" + e.getClass().getName() + ") sending file ", e); log.error( "returnFile(): " + UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, 0)); if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_NOT_FOUND, "Problem sending file: " + e.getMessage()); } }