List of usage examples for javax.servlet.http HttpServletResponse getHeaders
public Collection<String> getHeaders(String name);
From source file:net.yacy.http.servlets.YaCyDefaultServlet.java
/** * Handles a YaCy servlet template, reads the template and replaces the template * items with actual values. Because of supported server side includes target * might not be the same as request.getPathInfo * /*from w ww. ja v a2 s .c o m*/ * @param target the path to the template * @param request the remote servlet request * @param response * @throws IOException * @throws ServletException */ protected void handleTemplate(String target, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { Switchboard sb = Switchboard.getSwitchboard(); String localeSelection = sb.getConfig("locale.language", "browser"); if (localeSelection.endsWith("browser")) { String lng = request.getLocale().getLanguage(); if (lng.equalsIgnoreCase("en")) { // because en is handled as "default" in localizer localeSelection = "default"; } else { localeSelection = lng; } } File targetFile = getLocalizedFile(target, localeSelection); File targetClass = rewriteClassFile(_resourceBase.addPath(target).getFile()); String targetExt = target.substring(target.lastIndexOf('.') + 1); long now = System.currentTimeMillis(); if (target.endsWith(".css")) { response.setDateHeader(HeaderFramework.LAST_MODIFIED, now); response.setDateHeader(HeaderFramework.EXPIRES, now + 3600000); // expires in 1 hour (which is still often, others use 1 week, month or year) } else if (target.endsWith(".png")) { // expires in 1 minute (reduce heavy image creation load) if (response.containsHeader(HeaderFramework.LAST_MODIFIED)) { response.getHeaders(HeaderFramework.LAST_MODIFIED).clear(); } response.setHeader(HeaderFramework.CACHE_CONTROL, "public, max-age=" + Integer.toString(60)); } else { response.setDateHeader(HeaderFramework.LAST_MODIFIED, now); response.setDateHeader(HeaderFramework.EXPIRES, now); // expires now } if ((targetClass != null)) { serverObjects args = new serverObjects(); Enumeration<String> argNames = request.getParameterNames(); // on ssi jetty dispatcher merged local ssi query parameters while (argNames.hasMoreElements()) { String argName = argNames.nextElement(); // standard attributes are just pushed as string args.put(argName, request.getParameter(argName)); } RequestHeader legacyRequestHeader = generateLegacyRequestHeader(request, target, targetExt); // add multipart-form fields to parameter if (ServletFileUpload.isMultipartContent(request)) { final String bodyEncoding = request.getHeader(HeaderFramework.CONTENT_ENCODING); if (HeaderFramework.CONTENT_ENCODING_GZIP.equalsIgnoreCase(bodyEncoding)) { parseMultipart(new GZIPRequestWrapper(request), args); } else { parseMultipart(request, args); } } // eof modification to read attribute Object tmp; try { if (args.isEmpty()) { // yacy servlets typically test for args != null (but not for args .isEmpty()) tmp = invokeServlet(targetClass, legacyRequestHeader, null); } else { tmp = invokeServlet(targetClass, legacyRequestHeader, args); } } catch (InvocationTargetException e) { if (e.getCause() instanceof InvalidURLLicenceException) { /* A non authaurized user is trying to fetch a image with a bad or already released license code */ response.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getCause().getMessage()); return; } if (e.getCause() instanceof TemplateMissingParameterException) { /* A template is used but miss some required parameter */ response.sendError(HttpServletResponse.SC_BAD_REQUEST, e.getCause().getMessage()); return; } ConcurrentLog.logException(e); throw new ServletException(targetFile.getAbsolutePath()); } catch (IllegalArgumentException | IllegalAccessException e) { ConcurrentLog.logException(e); throw new ServletException(targetFile.getAbsolutePath()); } if (tmp instanceof RasterPlotter || tmp instanceof EncodedImage || tmp instanceof Image) { net.yacy.cora.util.ByteBuffer result = null; if (tmp instanceof RasterPlotter) { final RasterPlotter yp = (RasterPlotter) tmp; // send an image to client result = RasterPlotter.exportImage(yp.getImage(), "png"); } else if (tmp instanceof EncodedImage) { final EncodedImage yp = (EncodedImage) tmp; result = yp.getImage(); /** When encodedImage is empty, return a code 500 rather than only an empty response * as it is better handled across different browsers */ if (result == null || result.length() == 0) { response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); result.close(); return; } if (yp.isStatic()) { // static image never expires response.setDateHeader(HeaderFramework.EXPIRES, now + 3600000); // expires in 1 hour } } else if (tmp instanceof Image) { final Image i = (Image) tmp; // generate an byte array from the generated image int width = i.getWidth(null); if (width < 0) { width = 96; // bad hack } int height = i.getHeight(null); if (height < 0) { height = 96; // bad hack } final BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); bi.createGraphics().drawImage(i, 0, 0, width, height, null); result = RasterPlotter.exportImage(bi, targetExt); } updateRespHeadersForImages(target, response); final String mimeType = Classification.ext2mime(targetExt, MimeTypes.Type.TEXT_HTML.asString()); response.setContentType(mimeType); response.setContentLength(result.length()); response.setStatus(HttpServletResponse.SC_OK); result.writeTo(response.getOutputStream()); result.close(); return; } if (tmp instanceof InputStream) { /* Images and favicons can also be written directly from an inputStream */ updateRespHeadersForImages(target, response); writeInputStream(response, targetExt, (InputStream) tmp); return; } servletProperties templatePatterns; if (tmp == null) { // if no args given, then tp will be an empty Hashtable object (not null) templatePatterns = new servletProperties(); } else if (tmp instanceof servletProperties) { templatePatterns = (servletProperties) tmp; if (templatePatterns.getOutgoingHeader() != null) { // handle responseHeader entries set by servlet ResponseHeader tmpouthdr = templatePatterns.getOutgoingHeader(); for (String hdrkey : tmpouthdr.keySet()) { if (!HeaderFramework.STATUS_CODE.equals(hdrkey)) { // skip default init response status value (not std. ) String val = tmpouthdr.get(hdrkey); if (!response.containsHeader(hdrkey) && val != null) { // to be on the safe side, add only new hdr (mainly used for CORS_ALLOW_ORIGIN) response.setHeader(hdrkey, tmpouthdr.get(hdrkey)); } } } // handle login cookie if (tmpouthdr.getCookiesEntries() != null) { for (Cookie c : tmpouthdr.getCookiesEntries()) { response.addCookie(c); } } } } else { templatePatterns = new servletProperties((serverObjects) tmp); } // handle YaCy http commands // handle action auth: check if the servlets requests authentication if (templatePatterns.containsKey(serverObjects.ACTION_AUTHENTICATE)) { if (!request.authenticate(response)) { return; } //handle action forward } else if (templatePatterns.containsKey(serverObjects.ACTION_LOCATION)) { String location = templatePatterns.get(serverObjects.ACTION_LOCATION, ""); if (location.isEmpty()) { location = request.getPathInfo(); } //TODO: handle equivalent of this from httpdfilehandler // final ResponseHeader headers = getDefaultHeaders(request.getPathInfo()); // headers.setAdditionalHeaderProperties(templatePatterns.getOutgoingHeader().getAdditionalHeaderProperties()); //put the cookies into the new header TODO: can we put all headerlines, without trouble? response.setHeader(HeaderFramework.LOCATION, location); response.setStatus(HttpServletResponse.SC_FOUND); return; } if (targetFile.exists() && targetFile.isFile() && targetFile.canRead()) { sb.setConfig("server.servlets.called", appendPath(sb.getConfig("server.servlets.called", ""), target)); if (args != null && !args.isEmpty()) { sb.setConfig("server.servlets.submitted", appendPath(sb.getConfig("server.servlets.submitted", ""), target)); } // add the application version, the uptime and the client name to every rewrite table templatePatterns.put(servletProperties.PEER_STAT_VERSION, yacyBuildProperties.getVersion()); templatePatterns.put(servletProperties.PEER_STAT_UPTIME, ((System.currentTimeMillis() - sb.startupTime) / 1000) / 60); // uptime in minutes templatePatterns.putHTML(servletProperties.PEER_STAT_CLIENTNAME, sb.peers.mySeed().getName()); templatePatterns.putHTML(servletProperties.PEER_STAT_CLIENTID, sb.peers.myID()); templatePatterns.put(servletProperties.PEER_STAT_MYTIME, GenericFormatter.SHORT_SECOND_FORMATTER.format()); templatePatterns.put(servletProperties.RELATIVE_BASE, YaCyDefaultServlet.getRelativeBase(target)); Seed myPeer = sb.peers.mySeed(); templatePatterns.put("newpeer", myPeer.getAge() >= 1 ? 0 : 1); templatePatterns.putHTML("newpeer_peerhash", myPeer.hash); boolean authorized = sb.adminAuthenticated(legacyRequestHeader) >= 2; templatePatterns.put("authorized", authorized ? 1 : 0); // used in templates and other html (e.g. to display lock/unlock symbol) templatePatterns.put("simpleheadernavbar", sb.getConfig("decoration.simpleheadernavbar", "navbar-default")); // add navigation keys to enable or disable menu items templatePatterns.put("navigation-p2p", sb.getConfigBool(SwitchboardConstants.DHT_ENABLED, true) || !sb.isRobinsonMode() ? 1 : 0); templatePatterns.put("navigation-p2p_authorized", authorized ? 1 : 0); String submitted = sb.getConfig("server.servlets.submitted", ""); boolean crawler_enabled = true; /* submitted.contains("Crawler_p") || submitted.contains("ConfigBasic") || submitted.contains("Load_RSS_p");*/ boolean advanced_enabled = crawler_enabled || submitted.contains("IndexImportMediawiki_p") || submitted.contains("CrawlStart"); templatePatterns.put("navigation-crawlmonitor", crawler_enabled); templatePatterns.put("navigation-crawlmonitor_authorized", authorized ? 1 : 0); templatePatterns.put("navigation-advanced", advanced_enabled); templatePatterns.put("navigation-advanced_authorized", authorized ? 1 : 0); templatePatterns.put(SwitchboardConstants.GREETING_HOMEPAGE, sb.getConfig(SwitchboardConstants.GREETING_HOMEPAGE, "")); templatePatterns.put(SwitchboardConstants.GREETING_SMALL_IMAGE, sb.getConfig(SwitchboardConstants.GREETING_SMALL_IMAGE, "")); templatePatterns.put(SwitchboardConstants.GREETING_IMAGE_ALT, sb.getConfig(SwitchboardConstants.GREETING_IMAGE_ALT, "")); templatePatterns.put("clientlanguage", localeSelection); String mimeType = Classification.ext2mime(targetExt, MimeTypes.Type.TEXT_HTML.asString()); InputStream fis; long fileSize = targetFile.length(); if (fileSize <= Math.min(4 * 1024 * 1204, MemoryControl.available() / 100)) { // read file completely into ram, avoid that too many files are open at the same time fis = new ByteArrayInputStream(FileUtils.read(targetFile)); } else { fis = new BufferedInputStream(new FileInputStream(targetFile)); } // set response header response.setContentType(mimeType); response.setStatus(HttpServletResponse.SC_OK); ByteArrayOutputStream bas = new ByteArrayOutputStream(4096); try { // apply templates TemplateEngine.writeTemplate(targetFile.getName(), fis, bas, templatePatterns); // handle SSI parseSSI(bas.toByteArray(), request, response); } finally { try { fis.close(); } catch (IOException ignored) { ConcurrentLog.warn("FILEHANDLER", "YaCyDefaultServlet: could not close target file " + targetFile.getName()); } try { bas.close(); } catch (IOException ignored) { /* Should never happen with a ByteArrayOutputStream */ } } } } }
From source file:net.yacy.http.servlets.YaCyDefaultServlet.java
/** * Eventually update response headers for image resources * @param target the query target/*from www. j a va 2 s .co m*/ * @param response servlet response to eventually update */ private void updateRespHeadersForImages(String target, HttpServletResponse response) { if (target.equals("/ViewImage.png") || target.equals("/ViewFavicon.png")) { if (response.containsHeader(HeaderFramework.LAST_MODIFIED)) { response.getHeaders(HeaderFramework.LAST_MODIFIED).clear(); // if this field is present, the reload-time is a 10% fraction of ttl and other caching headers do not work } // cache-control: allow shared caching (i.e. proxies) and set expires age for cache response.setHeader(HeaderFramework.CACHE_CONTROL, "public, max-age=" + Integer.toString(600)); // seconds; ten minutes } }
From source file:org.apache.atlas.web.filters.AtlasAuthenticationFilter.java
private static String readUserFromCookie(HttpServletResponse response1) { String userName = null;/* w w w .jav a 2s. co m*/ boolean isCookieSet = response1.containsHeader("Set-Cookie"); if (isCookieSet) { Collection<String> authUserName = response1.getHeaders("Set-Cookie"); if (authUserName != null) { for (String cookie : authUserName) { if (!StringUtils.isEmpty(cookie)) { if (cookie.toLowerCase().startsWith(AuthenticatedURL.AUTH_COOKIE.toLowerCase()) && cookie.contains("u=")) { String[] split = cookie.split(";"); if (split != null) { for (String s : split) { if (!StringUtils.isEmpty(s) && s.toLowerCase() .startsWith(AuthenticatedURL.AUTH_COOKIE.toLowerCase())) { int ustr = s.indexOf("u="); if (ustr != -1) { int andStr = s.indexOf("&", ustr); if (andStr != -1) { try { userName = s.substring(ustr + 2, andStr); break; } catch (Exception e) { userName = null; } } } } } } } } } } } return userName; }
From source file:org.apache.ranger.security.web.filter.RangerKRBAuthenticationFilter.java
@Override protected void doFilter(FilterChain filterChain, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { String authType = PropertiesUtil.getProperty(RANGER_AUTH_TYPE); String userName = null;//from w w w.j ava 2s . com boolean checkCookie = response.containsHeader("Set-Cookie"); if (checkCookie) { Collection<String> authUserName = response.getHeaders("Set-Cookie"); if (authUserName != null) { Iterator<String> i = authUserName.iterator(); while (i.hasNext()) { String cookie = i.next(); if (!StringUtils.isEmpty(cookie)) { if (cookie.toLowerCase().startsWith(AUTH_COOKIE_NAME.toLowerCase()) && cookie.contains("u=")) { String[] split = cookie.split(";"); if (split != null) { for (String s : split) { if (!StringUtils.isEmpty(s) && s.toLowerCase().startsWith(AUTH_COOKIE_NAME.toLowerCase())) { int ustr = s.indexOf("u="); if (ustr != -1) { int andStr = s.indexOf("&", ustr); if (andStr != -1) { try { userName = s.substring(ustr + 2, andStr); } catch (Exception e) { userName = null; } } } } } } } } } } } String sessionUserName = request.getParameter(S_USER); String pathInfo = request.getPathInfo(); if (!StringUtils.isEmpty(sessionUserName) && sessionUserName.equalsIgnoreCase("keyadmin") && !StringUtils.isEmpty(pathInfo) && pathInfo.contains("public/v2/api/service")) { LOG.info("Session will be created by : " + sessionUserName); userName = sessionUserName; } if ((isSpnegoEnable(authType) && (!StringUtils.isEmpty(userName)))) { Authentication existingAuth = SecurityContextHolder.getContext().getAuthentication(); if (existingAuth == null || !existingAuth.isAuthenticated()) { //--------------------------- To Create Ranger Session -------------------------------------- String rangerLdapDefaultRole = PropertiesUtil.getProperty("ranger.ldap.default.role", "ROLE_USER"); //if we get the userName from the token then log into ranger using the same user final List<GrantedAuthority> grantedAuths = new ArrayList<>(); grantedAuths.add(new SimpleGrantedAuthority(rangerLdapDefaultRole)); final UserDetails principal = new User(userName, "", grantedAuths); final Authentication finalAuthentication = new UsernamePasswordAuthenticationToken(principal, "", grantedAuths); WebAuthenticationDetails webDetails = new WebAuthenticationDetails(request); ((AbstractAuthenticationToken) finalAuthentication).setDetails(webDetails); RangerAuthenticationProvider authenticationProvider = new RangerAuthenticationProvider(); Authentication authentication = authenticationProvider.authenticate(finalAuthentication); authentication = getGrantedAuthority(authentication); SecurityContextHolder.getContext().setAuthentication(authentication); request.setAttribute("spnegoEnabled", true); LOG.info("Logged into Ranger as = " + userName); filterChain.doFilter(request, response); } else { try { super.doFilter(filterChain, request, response); } catch (Exception e) { throw restErrorUtil .createRESTException("RangerKRBAuthenticationFilter Failed : " + e.getMessage()); } } } else { filterChain.doFilter(request, response); } }
From source file:org.kurento.repository.internal.http.RepositoryHttpServlet.java
private void logResponse(HttpServletResponse resp) { Collection<String> headerNames = resp.getHeaderNames(); for (String headerName : headerNames) { Collection<String> values = resp.getHeaders(headerName); log.debug(" Header {}: {}", headerName, values); }// w w w . ja v a 2s .com }