protected void bindPreProcessor(ProxyPreProcessor proxyPreProcessor) { preProcessors.put(proxyPreProcessor.getName(), proxyPreProcessor); }
protected void unbindPreProcessor(ProxyPreProcessor proxyPreProcessor) { preProcessors.remove(proxyPreProcessor.getName()); }
protected void dispatch( SlingHttpServletRequest request, SlingHttpServletResponse response, boolean userInputStream) throws ServletException, IOException { try { Resource resource = request.getResource(); if (!resource.getPath().startsWith(PROXY_PATH_PREFIX)) { response.sendError( HttpServletResponse.SC_FORBIDDEN, "Proxying templates may only be stored in " + PROXY_PATH_PREFIX); return; } Node node = resource.adaptTo(Node.class); if (!userInputStream) { Value[] v = JcrUtils.getValues(node, SAKAI_REQUEST_STREAM_BODY); if (v != null && v.length > 0) { userInputStream = Boolean.parseBoolean(v[0].getString()); } } Map<String, String> headers = new ConcurrentHashMap<String, String>(); for (Enumeration<?> enames = request.getHeaderNames(); enames.hasMoreElements(); ) { String name = (String) enames.nextElement(); if (!headerBacklist.contains(name)) { headers.put(name, request.getHeader(name)); } } // search for special headers. if (headers.containsKey(BASIC_USER)) { String user = headers.get(BASIC_USER); String password = headers.get(BASIC_PASSWORD); Base64 base64 = new Base64(); String passwordDigest = new String(base64.encode((user + ":" + password).getBytes("UTF-8"))); String digest = BASIC + passwordDigest.trim(); headers.put(AUTHORIZATION, digest); } for (Entry<String, String> e : headers.entrySet()) { if (e.getKey().startsWith(":")) { headers.remove(e.getKey()); } } // collect the parameters and store into a mutable map. RequestParameterMap parameterMap = request.getRequestParameterMap(); Map<String, Object> templateParams = new ConcurrentHashMap<String, Object>(parameterMap); // search for special parameters. if (parameterMap.containsKey(BASIC_USER)) { String user = parameterMap.getValue(BASIC_USER).getString(); String password = parameterMap.getValue(BASIC_PASSWORD).getString(); Base64 base64 = new Base64(); String passwordDigest = new String(base64.encode((user + ":" + password).getBytes("UTF-8"))); String digest = BASIC + passwordDigest.trim(); headers.put(AUTHORIZATION, digest); } // we might want to pre-process the headers if (node.hasProperty(ProxyPreProcessor.SAKAI_PREPROCESSOR)) { String preprocessorName = node.getProperty(ProxyPreProcessor.SAKAI_PREPROCESSOR).getString(); ProxyPreProcessor preprocessor = preProcessors.get(preprocessorName); if (preprocessor != null) { preprocessor.preProcessRequest(request, headers, templateParams); } else { LOGGER.warn( "Unable to find pre processor of name {} for node {} ", preprocessorName, node.getPath()); } } ProxyPostProcessor postProcessor = defaultPostProcessor; // we might want to post-process the headers if (node.hasProperty(ProxyPostProcessor.SAKAI_POSTPROCESSOR)) { String postProcessorName = node.getProperty(ProxyPostProcessor.SAKAI_POSTPROCESSOR).getString(); if (postProcessors.containsKey(postProcessorName)) { postProcessor = postProcessors.get(postProcessorName); } if (postProcessor == null) { LOGGER.warn( "Unable to find post processor of name {} for node {} ", postProcessorName, node.getPath()); postProcessor = defaultPostProcessor; } } ProxyResponse proxyResponse = proxyClientService.executeCall(node, headers, templateParams, null, -1, null); try { postProcessor.process(templateParams, response, proxyResponse); } finally { proxyResponse.close(); } } catch (IOException e) { throw e; } catch (ProxyClientException e) { response.sendError(500, e.getMessage()); } catch (RepositoryException e) { response.sendError(500, e.getMessage()); } }