List of usage examples for javax.servlet.http HttpServletResponse SC_PARTIAL_CONTENT
int SC_PARTIAL_CONTENT
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From source file:com.enonic.cms.framework.util.HttpServletRangeUtilTest.java
@Test public void test_process_request_plain_some_range() throws Exception { final MockHttpServletRequest httpServletRequest = new MockHttpServletRequest(); httpServletRequest.setMethod("GET"); httpServletRequest.setPathInfo("/input.dat"); httpServletRequest.addHeader(HttpHeaders.RANGE, "bytes=-48"); final MockHttpServletResponse mockHttpServletResponse = new MockHttpServletResponse(); HttpServletRangeUtil.processRequest(httpServletRequest, mockHttpServletResponse, "input.dat", "application/pdf", INPUT_FILE, false); assertEquals("CcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz", mockHttpServletResponse.getContentAsString()); assertEquals(HttpServletResponse.SC_PARTIAL_CONTENT, mockHttpServletResponse.getStatus()); assertEquals("application/pdf", mockHttpServletResponse.getContentType()); assertEquals("inline;filename=\"input.dat\"", mockHttpServletResponse.getHeader(HttpHeaders.CONTENT_DISPOSITION)); assertEquals("48", mockHttpServletResponse.getHeader(HttpHeaders.CONTENT_LENGTH)); }
From source file:com.enonic.cms.framework.util.HttpServletRangeUtilTest.java
@Test public void test_process_request_plain_range_minus() throws Exception { final MockHttpServletRequest httpServletRequest = new MockHttpServletRequest(); httpServletRequest.setMethod("GET"); httpServletRequest.setPathInfo("/input.dat"); httpServletRequest.addHeader(HttpHeaders.RANGE, "bytes=50-"); final MockHttpServletResponse mockHttpServletResponse = new MockHttpServletResponse(); HttpServletRangeUtil.processRequest(httpServletRequest, mockHttpServletResponse, "input.dat", "application/pdf", INPUT_FILE, false); assertEquals("Zz", mockHttpServletResponse.getContentAsString()); assertEquals(HttpServletResponse.SC_PARTIAL_CONTENT, mockHttpServletResponse.getStatus()); assertEquals("application/pdf", mockHttpServletResponse.getContentType()); assertEquals("inline;filename=\"input.dat\"", mockHttpServletResponse.getHeader(HttpHeaders.CONTENT_DISPOSITION)); assertEquals("2", mockHttpServletResponse.getHeader(HttpHeaders.CONTENT_LENGTH)); }
From source file:org.nuxeo.ecm.core.io.download.DownloadServiceImpl.java
@Override public void downloadBlob(HttpServletRequest request, HttpServletResponse response, DocumentModel doc, String xpath, Blob blob, String filename, String reason, Map<String, Serializable> extendedInfos, Boolean inline, Consumer<ByteRange> blobTransferer) throws IOException { Objects.requireNonNull(blob); // check blob permissions if (!checkPermission(doc, xpath, blob, reason, extendedInfos)) { response.sendError(HttpServletResponse.SC_FORBIDDEN, "Permission denied"); return;/*from w w w.j av a 2s . c o m*/ } // check Blob Manager download link URI uri = redirectResolver.getURI(blob, UsageHint.DOWNLOAD, request); if (uri != null) { try { Map<String, Serializable> ei = new HashMap<>(); if (extendedInfos != null) { ei.putAll(extendedInfos); } ei.put("redirect", uri.toString()); logDownload(doc, xpath, filename, reason, ei); response.sendRedirect(uri.toString()); } catch (IOException ioe) { DownloadHelper.handleClientDisconnect(ioe); } return; } try { String digest = blob.getDigest(); if (digest == null) { digest = DigestUtils.md5Hex(blob.getStream()); } String etag = '"' + digest + '"'; // with quotes per RFC7232 2.3 response.setHeader("ETag", etag); // re-send even on SC_NOT_MODIFIED addCacheControlHeaders(request, response); String ifNoneMatch = request.getHeader("If-None-Match"); if (ifNoneMatch != null) { boolean match = false; if (ifNoneMatch.equals("*")) { match = true; } else { for (String previousEtag : StringUtils.split(ifNoneMatch, ", ")) { if (previousEtag.equals(etag)) { match = true; break; } } } if (match) { String method = request.getMethod(); if (method.equals("GET") || method.equals("HEAD")) { response.sendError(HttpServletResponse.SC_NOT_MODIFIED); } else { // per RFC7232 3.2 response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); } return; } } // regular processing if (StringUtils.isBlank(filename)) { filename = StringUtils.defaultIfBlank(blob.getFilename(), "file"); } String contentDisposition = DownloadHelper.getRFC2231ContentDisposition(request, filename, inline); response.setHeader("Content-Disposition", contentDisposition); response.setContentType(blob.getMimeType()); if (blob.getEncoding() != null) { response.setCharacterEncoding(blob.getEncoding()); } long length = blob.getLength(); response.setHeader("Accept-Ranges", "bytes"); String range = request.getHeader("Range"); ByteRange byteRange; if (StringUtils.isBlank(range)) { byteRange = null; } else { byteRange = DownloadHelper.parseRange(range, length); if (byteRange == null) { log.error("Invalid byte range received: " + range); } else { response.setHeader("Content-Range", "bytes " + byteRange.getStart() + "-" + byteRange.getEnd() + "/" + length); response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); } } long contentLength = byteRange == null ? length : byteRange.getLength(); if (contentLength < Integer.MAX_VALUE) { response.setContentLength((int) contentLength); } logDownload(doc, xpath, filename, reason, extendedInfos); // execute the final download blobTransferer.accept(byteRange); } catch (UncheckedIOException e) { DownloadHelper.handleClientDisconnect(e.getCause()); } catch (IOException ioe) { DownloadHelper.handleClientDisconnect(ioe); } }
From source file:eionet.eunis.servlets.DownloadServlet.java
/** * Process the actual request./* w w w . ja va2s.c om*/ * * @param request The request to be processed. * @param response The response to be created. * @param content Whether the request body should be written (GET) or not (HEAD). * @throws IOException If something fails at I/O level. * @throws ServletException */ private void processRequest(HttpServletRequest request, HttpServletResponse response, boolean content) throws IOException, ServletException { String requestURI = request.getRequestURI(); String contextPath = request.getContextPath(); String pathInfo = request.getPathInfo(); String servletPath = request.getServletPath(); // Create the abstract file reference to the requested file. File file = null; String fileRelativePath = StringUtils.substringAfter(request.getRequestURI(), request.getContextPath()); fileRelativePath = StringUtils.replace(fileRelativePath, "%20", " "); if (StringUtils.isNotEmpty(fileRelativePath) && StringUtils.isNotEmpty(appHome)) { file = new File(appHome, fileRelativePath); } // If file was not found, send 404. if (file == null || !file.exists() || file.isDirectory()) { response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } // Prepare some variables. The ETag is an unique identifier of the file. String fileName = file.getName(); long length = file.length(); long lastModified = file.lastModified(); String eTag = fileName + "_" + length + "_" + lastModified; // Validate request headers for caching --------------------------------------------------- // If-None-Match header should contain "*" or ETag. If so, then return 304. String ifNoneMatch = request.getHeader("If-None-Match"); if (ifNoneMatch != null && matches(ifNoneMatch, eTag)) { response.setHeader("ETag", eTag); // Required in 304. response.sendError(HttpServletResponse.SC_NOT_MODIFIED); return; } // If-Modified-Since header should be greater than LastModified. If so, then return 304. // This header is ignored if any If-None-Match header is specified. long ifModifiedSince = request.getDateHeader("If-Modified-Since"); if (ifNoneMatch == null && ifModifiedSince != -1 && ifModifiedSince + 1000 > lastModified) { response.setHeader("ETag", eTag); // Required in 304. response.sendError(HttpServletResponse.SC_NOT_MODIFIED); return; } // Validate request headers for resume ---------------------------------------------------- // If-Match header should contain "*" or ETag. If not, then return 412. String ifMatch = request.getHeader("If-Match"); if (ifMatch != null && !matches(ifMatch, eTag)) { response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); return; } // If-Unmodified-Since header should be greater than LastModified. If not, then return 412. long ifUnmodifiedSince = request.getDateHeader("If-Unmodified-Since"); if (ifUnmodifiedSince != -1 && ifUnmodifiedSince + 1000 <= lastModified) { response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); return; } // Validate and process range ------------------------------------------------------------- // Prepare some variables. The full Range represents the complete file. Range full = new Range(0, length - 1, length); List<Range> ranges = new ArrayList<Range>(); // Validate and process Range and If-Range headers. String range = request.getHeader("Range"); if (range != null) { // Range header should match format "bytes=n-n,n-n,n-n...". If not, then return 416. if (!range.matches("^bytes=\\d*-\\d*(,\\d*-\\d*)*$")) { response.setHeader("Content-Range", "bytes */" + length); // Required in 416. response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); return; } // If-Range header should either match ETag or be greater then LastModified. If not, // then return full file. String ifRange = request.getHeader("If-Range"); if (ifRange != null && !ifRange.equals(eTag)) { try { long ifRangeTime = request.getDateHeader("If-Range"); // Throws IAE if invalid. if (ifRangeTime != -1 && ifRangeTime + 1000 < lastModified) { ranges.add(full); } } catch (IllegalArgumentException ignore) { ranges.add(full); } } // If any valid If-Range header, then process each part of byte range. if (ranges.isEmpty()) { for (String part : range.substring(6).split(",")) { // Assuming a file with length of 100, the following examples returns bytes at: // 50-80 (50 to 80), 40- (40 to length=100), -20 (length-20=80 to length=100). long start = sublong(part, 0, part.indexOf("-")); long end = sublong(part, part.indexOf("-") + 1, part.length()); if (start == -1) { start = length - end; end = length - 1; } else if (end == -1 || end > length - 1) { end = length - 1; } // Check if Range is syntactically valid. If not, then return 416. if (start > end) { response.setHeader("Content-Range", "bytes */" + length); // Required in 416. response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); return; } // Add range. ranges.add(new Range(start, end, length)); } } } // Prepare and initialize response -------------------------------------------------------- // Get content type by file name and set default GZIP support and content disposition. String contentType = getServletContext().getMimeType(fileName); boolean acceptsGzip = false; String disposition = "inline"; // If content type is unknown, then set the default value. // For all content types, see: http://www.w3schools.com/media/media_mimeref.asp // To add new content types, add new mime-mapping entry in web.xml. if (contentType == null) { contentType = "application/octet-stream"; } // If content type is text, then determine whether GZIP content encoding is supported by // the browser and expand content type with the one and right character encoding. // Else, expect for images, determine content disposition. If content type is supported by // the browser, then set to inline, else attachment which will pop a 'save as' dialogue. if (contentType.startsWith("text")) { String acceptEncoding = request.getHeader("Accept-Encoding"); acceptsGzip = acceptEncoding != null && accepts(acceptEncoding, "gzip"); contentType += ";charset=UTF-8"; } else if (!contentType.startsWith("image")) { String accept = request.getHeader("Accept"); disposition = accept != null && accepts(accept, contentType) ? "inline" : "attachment"; } // Initialize response. response.reset(); response.setBufferSize(DEFAULT_BUFFER_SIZE); response.setHeader("Content-Disposition", disposition + ";filename=\"" + fileName + "\""); response.setHeader("Accept-Ranges", "bytes"); response.setHeader("ETag", eTag); response.setDateHeader("Last-Modified", lastModified); response.setDateHeader("Expires", System.currentTimeMillis() + DEFAULT_EXPIRE_TIME); // Send requested file (part(s)) to client ------------------------------------------------ // Prepare streams. RandomAccessFile input = null; OutputStream output = null; try { // Open streams. input = new RandomAccessFile(file, "r"); output = response.getOutputStream(); if (ranges.isEmpty() || ranges.get(0) == full) { // Return full file. Range r = full; response.setContentType(contentType); response.setHeader("Content-Range", "bytes " + r.start + "-" + r.end + "/" + r.total); if (content) { if (acceptsGzip) { // The browser accepts GZIP, so GZIP the content. response.setHeader("Content-Encoding", "gzip"); output = new GZIPOutputStream(output, DEFAULT_BUFFER_SIZE); } else { // Content length is not directly predictable in case of GZIP. // So only add it if there is no means of GZIP, else browser will hang. response.setHeader("Content-Length", String.valueOf(r.length)); } // Copy full range. copy(input, output, r.start, r.length); } } else if (ranges.size() == 1) { // Return single part of file. Range r = ranges.get(0); response.setContentType(contentType); response.setHeader("Content-Range", "bytes " + r.start + "-" + r.end + "/" + r.total); response.setHeader("Content-Length", String.valueOf(r.length)); response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206. if (content) { // Copy single part range. copy(input, output, r.start, r.length); } } else { // Return multiple parts of file. response.setContentType("multipart/byteranges; boundary=" + MULTIPART_BOUNDARY); response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206. if (content) { // Cast back to ServletOutputStream to get the easy println methods. ServletOutputStream sos = (ServletOutputStream) output; // Copy multi part range. for (Range r : ranges) { // Add multipart boundary and header fields for every range. sos.println(); sos.println("--" + MULTIPART_BOUNDARY); sos.println("Content-Type: " + contentType); sos.println("Content-Range: bytes " + r.start + "-" + r.end + "/" + r.total); // Copy single part range of multi part range. copy(input, output, r.start, r.length); } // End with multipart boundary. sos.println(); sos.println("--" + MULTIPART_BOUNDARY + "--"); } } } finally { // Gently close streams. close(output); close(input); } }
From source file:eionet.gdem.web.FileDownloadServlet.java
/** * Process the actual request.//from w w w. jav a 2s. c o m * * @param request * The request to be processed. * @param response * The response to be created. * @param content * Whether the request body should be written (GET) or not (HEAD). * @throws IOException * If something fails at I/O level. * @throws ServletException If an error occurs. */ private void processRequest(HttpServletRequest request, HttpServletResponse response, boolean content) throws IOException, ServletException { String urlPath = URLDecoder .decode(StringUtils.substringAfter(request.getRequestURI(), request.getContextPath()), "UTF-8"); String filePath = Properties.appRootFolder + urlPath; String securityMessage = checkPermissions(request, urlPath); if (securityMessage != null) { handleNotAuthorised(securityMessage, request, response); return; } // Get the file object from the file store File file = new File(filePath); // If file was not found, send 404. if (file == null || !file.exists() || !file.isFile()) { handleFileNotFound("Could not find file by the following URI: " + request.getRequestURI(), request, response); return; } // Prepare some variables. The ETag is an unique identifier of the file. String fileName = file.getName(); long length = file.length(); long lastModified = file.lastModified(); String eTag = fileName + "_" + length + "_" + lastModified; // Validate request headers for caching --------------------------------------------------- // If-None-Match header should contain "*" or ETag. If so, then return 304. String ifNoneMatch = request.getHeader("If-None-Match"); if (ifNoneMatch != null && matches(ifNoneMatch, eTag)) { response.setHeader("ETag", eTag); // Required in 304. response.sendError(HttpServletResponse.SC_NOT_MODIFIED); return; } // If-Modified-Since header should be greater than LastModified. If so, then return 304. // This header is ignored if any If-None-Match header is specified. long ifModifiedSince = request.getDateHeader("If-Modified-Since"); if (ifNoneMatch == null && ifModifiedSince != -1 && ifModifiedSince + 1000 > lastModified) { response.setHeader("ETag", eTag); // Required in 304. response.sendError(HttpServletResponse.SC_NOT_MODIFIED); return; } // Validate request headers for resume ---------------------------------------------------- // If-Match header should contain "*" or ETag. If not, then return 412. String ifMatch = request.getHeader("If-Match"); if (ifMatch != null && !matches(ifMatch, eTag)) { response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); return; } // If-Unmodified-Since header should be greater than LastModified. If not, then return 412. long ifUnmodifiedSince = request.getDateHeader("If-Unmodified-Since"); if (ifUnmodifiedSince != -1 && ifUnmodifiedSince + 1000 <= lastModified) { response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); return; } // Validate and process range ------------------------------------------------------------- // Prepare some variables. The full Range represents the complete file. Range full = new Range(0, length - 1, length); List<Range> ranges = new ArrayList<Range>(); // Validate and process Range and If-Range headers. String range = request.getHeader("Range"); if (range != null) { // Range header should match format "bytes=n-n,n-n,n-n...". If not, then return 416. if (!range.matches("^bytes=\\d*-\\d*(,\\d*-\\d*)*$")) { response.setHeader("Content-Range", "bytes */" + length); // Required in 416. response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); return; } // If-Range header should either match ETag or be greater then LastModified. If not, // then return full file. String ifRange = request.getHeader("If-Range"); if (ifRange != null && !ifRange.equals(eTag)) { try { long ifRangeTime = request.getDateHeader("If-Range"); // Throws IAE if invalid. if (ifRangeTime != -1 && ifRangeTime + 1000 < lastModified) { ranges.add(full); } } catch (IllegalArgumentException ignore) { ranges.add(full); } } // If any valid If-Range header, then process each part of byte range. if (ranges.isEmpty()) { for (String part : range.substring(6).split(",")) { // Assuming a file with length of 100, the following examples returns bytes at: // 50-80 (50 to 80), 40- (40 to length=100), -20 (length-20=80 to length=100). long start = sublong(part, 0, part.indexOf("-")); long end = sublong(part, part.indexOf("-") + 1, part.length()); if (start == -1) { start = length - end; end = length - 1; } else if (end == -1 || end > length - 1) { end = length - 1; } // Check if Range is syntactically valid. If not, then return 416. if (start > end) { response.setHeader("Content-Range", "bytes */" + length); // Required in 416. response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); return; } // Add range. ranges.add(new Range(start, end, length)); } } } // Prepare and initialize response -------------------------------------------------------- // Get content type by file name and set default GZIP support and content disposition. String contentType = getServletContext().getMimeType(fileName); boolean acceptsGzip = false; String disposition = "inline"; // If content type is unknown, then set the default value. // For all content types, see: http://www.w3schools.com/media/media_mimeref.asp // To add new content types, add new mime-mapping entry in web.xml. if (contentType == null) { contentType = "text/plain"; } // If content type is text, then determine whether GZIP content encoding is supported by // the browser and expand content type with the one and right character encoding. // Else, expect for images, determine content disposition. If content type is supported by // the browser, then set to inline, else attachment which will pop a 'save as' dialogue. if (contentType.startsWith("text")) { String acceptEncoding = request.getHeader("Accept-Encoding"); acceptsGzip = acceptEncoding != null && accepts(acceptEncoding, "gzip"); contentType += ";charset=UTF-8"; } else if (!contentType.startsWith("image")) { String accept = request.getHeader("Accept"); disposition = accept != null && accepts(accept, contentType) ? "inline" : "attachment"; } // Initialize response. response.reset(); response.setBufferSize(DEFAULT_BUFFER_SIZE); response.setHeader("Content-Disposition", disposition + ";filename=\"" + fileName + "\""); response.setHeader("Accept-Ranges", "bytes"); response.setHeader("ETag", eTag); response.setDateHeader("Last-Modified", lastModified); response.setDateHeader("Expires", System.currentTimeMillis() + DEFAULT_EXPIRE_TIME); // Send requested file (part(s)) to client ------------------------------------------------ // Prepare streams. RandomAccessFile input = null; OutputStream output = null; try { // Open streams. input = new RandomAccessFile(file, "r"); output = response.getOutputStream(); if (ranges.isEmpty() || ranges.get(0) == full) { // Return full file. Range r = full; response.setContentType(contentType); response.setHeader("Content-Range", "bytes " + r.start + "-" + r.end + "/" + r.total); if (content) { if (acceptsGzip) { // The browser accepts GZIP, so GZIP the content. response.setHeader("Content-Encoding", "gzip"); output = new GZIPOutputStream(output, DEFAULT_BUFFER_SIZE); } else { // Content length is not directly predictable in case of GZIP. // So only add it if there is no means of GZIP, else browser will hang. response.setHeader("Content-Length", String.valueOf(r.length)); } // Copy full range. copy(input, output, r.start, r.length); } } else if (ranges.size() == 1) { // Return single part of file. Range r = ranges.get(0); response.setContentType(contentType); response.setHeader("Content-Range", "bytes " + r.start + "-" + r.end + "/" + r.total); response.setHeader("Content-Length", String.valueOf(r.length)); response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206. if (content) { // Copy single part range. copy(input, output, r.start, r.length); } } else { // Return multiple parts of file. response.setContentType("multipart/byteranges; boundary=" + MULTIPART_BOUNDARY); response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206. if (content) { // Cast back to ServletOutputStream to get the easy println methods. ServletOutputStream sos = (ServletOutputStream) output; // Copy multi part range. for (Range r : ranges) { // Add multipart boundary and header fields for every range. sos.println(); sos.println("--" + MULTIPART_BOUNDARY); sos.println("Content-Type: " + contentType); sos.println("Content-Range: bytes " + r.start + "-" + r.end + "/" + r.total); // Copy single part range of multi part range. copy(input, output, r.start, r.length); } // End with multipart boundary. sos.println(); sos.println("--" + MULTIPART_BOUNDARY + "--"); } } } finally { // Gently close streams. close(output); close(input); } }
From source file:com.enonic.cms.framework.util.HttpServletRangeUtilTest.java
@Test public void test_process_request_plain_last_range_minus() throws Exception { final MockHttpServletRequest httpServletRequest = new MockHttpServletRequest(); httpServletRequest.setMethod("GET"); httpServletRequest.setPathInfo("/input.dat"); httpServletRequest.addHeader(HttpHeaders.RANGE, "bytes=51-"); final MockHttpServletResponse mockHttpServletResponse = new MockHttpServletResponse(); HttpServletRangeUtil.processRequest(httpServletRequest, mockHttpServletResponse, "input.dat", "application/pdf", INPUT_FILE, false); assertEquals("z", mockHttpServletResponse.getContentAsString()); assertEquals(HttpServletResponse.SC_PARTIAL_CONTENT, mockHttpServletResponse.getStatus()); assertEquals("application/pdf", mockHttpServletResponse.getContentType()); assertEquals("inline;filename=\"input.dat\"", mockHttpServletResponse.getHeader(HttpHeaders.CONTENT_DISPOSITION)); assertEquals("1", mockHttpServletResponse.getHeader(HttpHeaders.CONTENT_LENGTH)); }
From source file:org.openmrs.module.patientnarratives.web.servlet.FileServlet.java
/** * Process the actual request./*from w w w. j a v a 2 s . c o m*/ * @param request The request to be processed. * @param response The response to be created. * @param content Whether the request body should be written (GET) or not (HEAD). * @throws IOException If something fails at I/O level. */ private void processRequest(HttpServletRequest request, HttpServletResponse response, boolean content) throws IOException { // Validate the requested file ------------------------------------------------------------ Integer videoObsId = Integer.parseInt(request.getParameter("obsId")); Obs complexObs = Context.getObsService().getComplexObs(videoObsId, OpenmrsConstants.RAW_VIEW); ComplexData complexData = complexObs.getComplexData(); byte[] videoObjectData = ((byte[]) complexData.getData()); String fileExt_file = complexData.getTitle(); String arrFileExt[] = fileExt_file.split(" "); tempMergedVideoFile = createFile(arrFileExt[0]); String requestedFile = tempMergedVideoFile.getCanonicalPath(); FileUtils.writeByteArrayToFile(new File(requestedFile), videoObjectData); // Check if file is actually supplied to the request URL. if (requestedFile == null) { // Do your thing if the file is not supplied to the request URL. // Throw an exception, or send 404, or show default/warning page, or just ignore it. response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } // URL-decode the file name (might contain spaces and on) and prepare file object. File file = new File(requestedFile); // Check if file actually exists in filesystem. if (!file.exists()) { // Do your thing if the file appears to be non-existing. // Throw an exception, or send 404, or show default/warning page, or just ignore it. response.sendError(HttpServletResponse.SC_NOT_FOUND); return; } // Prepare some variables. The ETag is an unique identifier of the file. String fileName = file.getName(); long length = file.length(); long lastModified = file.lastModified(); String eTag = fileName + "_" + length + "_" + lastModified; long expires = System.currentTimeMillis() + DEFAULT_EXPIRE_TIME; // Validate request headers for caching --------------------------------------------------- // If-None-Match header should contain "*" or ETag. If so, then return 304. String ifNoneMatch = request.getHeader("If-None-Match"); if (ifNoneMatch != null && matches(ifNoneMatch, eTag)) { response.setStatus(HttpServletResponse.SC_NOT_MODIFIED); response.setHeader("ETag", eTag); // Required in 304. response.setDateHeader("Expires", expires); // Postpone cache with 1 week. return; } // If-Modified-Since header should be greater than LastModified. If so, then return 304. // This header is ignored if any If-None-Match header is specified. long ifModifiedSince = request.getDateHeader("If-Modified-Since"); if (ifNoneMatch == null && ifModifiedSince != -1 && ifModifiedSince + 1000 > lastModified) { response.setStatus(HttpServletResponse.SC_NOT_MODIFIED); response.setHeader("ETag", eTag); // Required in 304. response.setDateHeader("Expires", expires); // Postpone cache with 1 week. return; } // Validate request headers for resume ---------------------------------------------------- // If-Match header should contain "*" or ETag. If not, then return 412. String ifMatch = request.getHeader("If-Match"); if (ifMatch != null && !matches(ifMatch, eTag)) { response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); return; } // If-Unmodified-Since header should be greater than LastModified. If not, then return 412. long ifUnmodifiedSince = request.getDateHeader("If-Unmodified-Since"); if (ifUnmodifiedSince != -1 && ifUnmodifiedSince + 1000 <= lastModified) { response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED); return; } // Validate and process range ------------------------------------------------------------- // Prepare some variables. The full Range represents the complete file. Range full = new Range(0, length - 1, length); List<Range> ranges = new ArrayList<Range>(); // Validate and process Range and If-Range headers. String range = request.getHeader("Range"); if (range != null) { // Range header should match format "bytes=n-n,n-n,n-n...". If not, then return 416. if (!range.matches("^bytes=\\d*-\\d*(,\\d*-\\d*)*$")) { response.setHeader("Content-Range", "bytes */" + length); // Required in 416. response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); return; } // If-Range header should either match ETag or be greater then LastModified. If not, // then return full file. String ifRange = request.getHeader("If-Range"); if (ifRange != null && !ifRange.equals(eTag)) { try { long ifRangeTime = request.getDateHeader("If-Range"); // Throws IAE if invalid. if (ifRangeTime != -1 && ifRangeTime + 1000 < lastModified) { ranges.add(full); } } catch (IllegalArgumentException ignore) { ranges.add(full); } } // If any valid If-Range header, then process each part of byte range. if (ranges.isEmpty()) { for (String part : range.substring(6).split(",")) { // Assuming a file with length of 100, the following examples returns bytes at: // 50-80 (50 to 80), 40- (40 to length=100), -20 (length-20=80 to length=100). long start = sublong(part, 0, part.indexOf("-")); long end = sublong(part, part.indexOf("-") + 1, part.length()); if (start == -1) { start = length - end; end = length - 1; } else if (end == -1 || end > length - 1) { end = length - 1; } // Check if Range is syntactically valid. If not, then return 416. if (start > end) { response.setHeader("Content-Range", "bytes */" + length); // Required in 416. response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); return; } // Add range. ranges.add(new Range(start, end, length)); } } } // Prepare and initialize response -------------------------------------------------------- // Get content type by file name and set default GZIP support and content disposition. String contentType = getServletContext().getMimeType(fileName); boolean acceptsGzip = false; String disposition = "inline"; // If content type is unknown, then set the default value. // For all content types, see: http://www.w3schools.com/media/media_mimeref.asp // To add new content types, add new mime-mapping entry in web.xml. if (contentType == null) { contentType = "application/octet-stream"; } // If content type is text, then determine whether GZIP content encoding is supported by // the browser and expand content type with the one and right character encoding. if (contentType.startsWith("text")) { String acceptEncoding = request.getHeader("Accept-Encoding"); acceptsGzip = acceptEncoding != null && accepts(acceptEncoding, "gzip"); contentType += ";charset=UTF-8"; } // Else, expect for images, determine content disposition. If content type is supported by // the browser, then set to inline, else attachment which will pop a 'save as' dialogue. else if (!contentType.startsWith("image")) { String accept = request.getHeader("Accept"); disposition = accept != null && accepts(accept, contentType) ? "inline" : "attachment"; } // Initialize response. response.reset(); response.setBufferSize(DEFAULT_BUFFER_SIZE); response.setHeader("Content-Disposition", disposition + ";filename=\"" + fileName + "\""); response.setHeader("Accept-Ranges", "bytes"); response.setHeader("ETag", eTag); response.setDateHeader("Last-Modified", lastModified); response.setDateHeader("Expires", expires); // Send requested file (part(s)) to client ------------------------------------------------ // Prepare streams. RandomAccessFile input = null; OutputStream output = null; try { // Open streams. input = new RandomAccessFile(file, "r"); output = response.getOutputStream(); if (ranges.isEmpty() || ranges.get(0) == full) { // Return full file. Range r = full; response.setContentType(contentType); response.setHeader("Content-Range", "bytes " + r.start + "-" + r.end + "/" + r.total); if (content) { if (acceptsGzip) { // The browser accepts GZIP, so GZIP the content. response.setHeader("Content-Encoding", "gzip"); output = new GZIPOutputStream(output, DEFAULT_BUFFER_SIZE); } else { // Content length is not directly predictable in case of GZIP. // So only add it if there is no means of GZIP, else browser will hang. response.setHeader("Content-Length", String.valueOf(r.length)); } // Copy full range. copy(input, output, r.start, r.length); } } else if (ranges.size() == 1) { // Return single part of file. Range r = ranges.get(0); response.setContentType(contentType); response.setHeader("Content-Range", "bytes " + r.start + "-" + r.end + "/" + r.total); response.setHeader("Content-Length", String.valueOf(r.length)); response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206. if (content) { // Copy single part range. copy(input, output, r.start, r.length); } } else { // Return multiple parts of file. response.setContentType("multipart/byteranges; boundary=" + MULTIPART_BOUNDARY); response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206. if (content) { // Cast back to ServletOutputStream to get the easy println methods. ServletOutputStream sos = (ServletOutputStream) output; // Copy multi part range. for (Range r : ranges) { // Add multipart boundary and header fields for every range. sos.println(); sos.println("--" + MULTIPART_BOUNDARY); sos.println("Content-Type: " + contentType); sos.println("Content-Range: bytes " + r.start + "-" + r.end + "/" + r.total); // Copy single part range of multi part range. copy(input, output, r.start, r.length); } // End with multipart boundary. sos.println(); sos.println("--" + MULTIPART_BOUNDARY + "--"); } } } finally { // Gently close streams. close(output); close(input); tempMergedVideoFile.delete(); } }
From source file:com.xpn.xwiki.web.DownloadActionTest.java
@Test public void testValidStartRange() throws XWikiException, IOException { // This test expects bytes 0, 1, 2 and 3 from the file. final Date d = new Date(); createAttachment(d, DEFAULT_FILE_NAME); setRequestExpectations(DEFAULT_URI, null, null, "bytes=0-3", -1l); setResponseExpectations(d.getTime(), 4); setOutputExpectations(0, 4);/*from ww w . j a va 2 s . com*/ getMockery().checking(new Expectations() { { one(DownloadActionTest.this.response).setStatus(with(HttpServletResponse.SC_PARTIAL_CONTENT)); one(DownloadActionTest.this.response).setHeader(with("Content-Range"), with("bytes 0-3/" + DownloadActionTest.this.fileContent.length)); } }); Assert.assertNull(this.action.render(getContext())); }
From source file:org.alfresco.repo.web.util.HttpRangeProcessor.java
/** * Process multiple ranges.//from ww w . j av a 2 s.c o m * * @param res HttpServletResponse * @param range Range header value * @param ref NodeRef to the content for streaming * @param property Content Property for the content * @param mimetype Mimetype of the content * @param userAgent User Agent of the caller * * @return true if processed range, false otherwise */ private boolean processMultiRange(Object res, String range, NodeRef ref, QName property, String mimetype, String userAgent) throws IOException { final Log logger = getLogger(); // Handle either HttpServletResponse or WebScriptResponse HttpServletResponse httpServletResponse = null; WebScriptResponse webScriptResponse = null; if (res instanceof HttpServletResponse) { httpServletResponse = (HttpServletResponse) res; } else if (res instanceof WebScriptResponse) { webScriptResponse = (WebScriptResponse) res; } if (httpServletResponse == null && webScriptResponse == null) { // Unknown response object type return false; } // return the sets of bytes as requested in the content-range header // the response will be formatted as multipart/byteranges media type message /* Examples of byte-ranges-specifier values (assuming an entity-body of length 10000): - The first 500 bytes (byte offsets 0-499, inclusive): bytes=0-499 - The second 500 bytes (byte offsets 500-999, inclusive): bytes=500-999 - The final 500 bytes (byte offsets 9500-9999, inclusive): bytes=-500 - Or bytes=9500- - The first and last bytes only (bytes 0 and 9999): bytes=0-0,-1 - Several legal but not canonical specifications of byte offsets 500-999, inclusive: bytes=500-600,601-999 bytes=500-700,601-999 */ boolean processedRange = false; // get the content reader ContentReader reader = contentService.getReader(ref, property); final List<Range> ranges = new ArrayList<Range>(8); long entityLength = reader.getSize(); for (StringTokenizer t = new StringTokenizer(range, ", "); t.hasMoreTokens(); /**/) { try { ranges.add(Range.constructRange(t.nextToken(), mimetype, entityLength)); } catch (IllegalArgumentException err) { if (getLogger().isDebugEnabled()) getLogger() .debug("Failed to parse range header - returning 416 status code: " + err.getMessage()); if (httpServletResponse != null) { httpServletResponse.setStatus(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); httpServletResponse.setHeader(HEADER_CONTENT_RANGE, "\"*\""); httpServletResponse.getOutputStream().close(); } else if (webScriptResponse != null) { webScriptResponse.setStatus(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE); webScriptResponse.setHeader(HEADER_CONTENT_RANGE, "\"*\""); webScriptResponse.getOutputStream().close(); } return true; } } if (ranges.size() != 0) { // merge byte ranges if possible - IE handles this well, FireFox not so much if (userAgent == null || userAgent.indexOf("MSIE ") != -1) { Collections.sort(ranges); for (int i = 0; i < ranges.size() - 1; i++) { Range first = ranges.get(i); Range second = ranges.get(i + 1); if (first.end + 1 >= second.start) { if (logger.isDebugEnabled()) logger.debug("Merging byte range: " + first + " with " + second); if (first.end < second.end) { // merge second range into first first.end = second.end; } // else we simply discard the second range - it is contained within the first // delete second range ranges.remove(i + 1); // reset loop index i--; } } } // calculate response content length long length = MULTIPART_BYTERANGES_BOUNDRY_END.length() + 2; for (Range r : ranges) { length += r.getLength(); } // output headers as we have at least one range to process OutputStream os = null; if (httpServletResponse != null) { httpServletResponse.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); httpServletResponse.setHeader(HEADER_CONTENT_TYPE, MULTIPART_BYTERANGES_HEADER); httpServletResponse.setHeader(HEADER_CONTENT_LENGTH, Long.toString(length)); os = httpServletResponse.getOutputStream(); } else if (webScriptResponse != null) { webScriptResponse.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); webScriptResponse.setHeader(HEADER_CONTENT_TYPE, MULTIPART_BYTERANGES_HEADER); webScriptResponse.setHeader(HEADER_CONTENT_LENGTH, Long.toString(length)); os = webScriptResponse.getOutputStream(); } InputStream is = null; try { for (Range r : ranges) { if (logger.isDebugEnabled()) logger.debug("Processing: " + r.getContentRange()); try { // output the header bytes for the range if (os instanceof ServletOutputStream) r.outputHeader((ServletOutputStream) os); // output the binary data for the range // need a new reader for each new InputStream is = contentService.getReader(ref, property).getContentInputStream(); streamRangeBytes(r, is, os, 0L); is.close(); is = null; // section marker and flush stream if (os instanceof ServletOutputStream) ((ServletOutputStream) os).println(); os.flush(); } catch (IOException err) { if (getLogger().isDebugEnabled()) getLogger().debug( "Unable to process multiple range due to IO Exception: " + err.getMessage()); throw err; } } } finally { if (is != null) { is.close(); } } // end marker if (os instanceof ServletOutputStream) ((ServletOutputStream) os).println(MULTIPART_BYTERANGES_BOUNDRY_END); os.close(); processedRange = true; } return processedRange; }
From source file:com.xpn.xwiki.web.DownloadActionTest.java
@Test public void testValidMiddleRange() throws XWikiException, IOException { // This test expects bytes 3, 4 and 5 from the file. final Date d = new Date(); createAttachment(d, DEFAULT_FILE_NAME); setRequestExpectations(DEFAULT_URI, null, null, "bytes=3-5", -1l); setResponseExpectations(d.getTime(), 3); setOutputExpectations(3, 6);/*from w w w . j a v a2s . co m*/ getMockery().checking(new Expectations() { { one(DownloadActionTest.this.response).setStatus(with(HttpServletResponse.SC_PARTIAL_CONTENT)); one(DownloadActionTest.this.response).setHeader(with("Content-Range"), with("bytes 3-5/" + DownloadActionTest.this.fileContent.length)); } }); Assert.assertNull(this.action.render(getContext())); }