| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.sling.cms.core.internal.operations; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.apache.sling.api.SlingException; |
| import org.apache.sling.api.SlingHttpServletRequest; |
| import org.apache.sling.api.resource.ModifiableValueMap; |
| import org.apache.sling.api.resource.Resource; |
| import org.apache.sling.cms.core.internal.CommonUtils; |
| import org.apache.sling.servlets.post.Modification; |
| import org.apache.sling.servlets.post.PostOperation; |
| import org.apache.sling.servlets.post.PostResponse; |
| import org.apache.sling.servlets.post.SlingPostProcessor; |
| import org.osgi.service.component.annotations.Component; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * The <code>BulkReplaceOperation</code> class will update all of the properties |
| * applicable to the supplied parameters under the resource for the operation, |
| * replacing the find string with the replacement value. |
| */ |
| @Component(immediate = true, service = { PostOperation.class }, property = PostOperation.PROP_OPERATION_NAME |
| + "=bulkreplace") |
| public class BulkReplaceOperation implements PostOperation { |
| |
| private static final Logger log = LoggerFactory.getLogger(BulkReplaceOperation.class); |
| |
| public static final String PN_UPDATE_PROPERTIES = "updateProperties"; |
| public static final String MODE_REGEX = "regex"; |
| public static final String PN_FIND = "find"; |
| public static final String PN_REPLACE = "replace"; |
| public static final String PN_MODE = "mode"; |
| |
| @SuppressWarnings("javasecurity:S2631") // ignoring warning since this servlet can only be executed by privileged users |
| @Override |
| public void run(SlingHttpServletRequest request, PostResponse response, SlingPostProcessor[] processors) { |
| |
| try { |
| // calculate the paths |
| String path = request.getResource().getPath(); |
| response.setPath(path); |
| |
| // perform the bulk replacement |
| Pattern updateProperties = Pattern.compile(request.getParameter(PN_UPDATE_PROPERTIES)); |
| if (log.isDebugEnabled()) { |
| log.debug("Updating properties matching: {}", updateProperties.pattern()); |
| } |
| Pattern rfind = null; |
| String find = request.getParameter(PN_FIND); |
| if (MODE_REGEX.equals(request.getParameter(PN_MODE))) { |
| if (log.isDebugEnabled()) { |
| log.debug("Using regular expressions to search for {}", CommonUtils.escapeLogMessage(find)); |
| } |
| |
| rfind = Pattern.compile(find); |
| } else if (log.isDebugEnabled()) { |
| log.debug("Searching for {}", CommonUtils.escapeLogMessage(find)); |
| } |
| String replace = request.getParameter(PN_REPLACE); |
| |
| if (log.isDebugEnabled()) { |
| log.debug("Replacing with {}", CommonUtils.escapeLogMessage(replace)); |
| } |
| |
| final List<Modification> changes = new ArrayList<>(); |
| updateProperties(request.getResource(), updateProperties, rfind, find, replace, response, changes); |
| |
| // invoke processors |
| if (processors != null) { |
| for (SlingPostProcessor processor : processors) { |
| processor.process(request, changes); |
| } |
| } |
| |
| // check modifications for remaining postfix and store the base path |
| final Map<String, String> modificationSourcesContainingPostfix = new HashMap<>(); |
| final Set<String> allModificationSources = new HashSet<>(changes.size()); |
| for (final Modification modification : changes) { |
| final String source = modification.getSource(); |
| if (source != null) { |
| allModificationSources.add(source); |
| final int atIndex = source.indexOf('@'); |
| if (atIndex > 0) { |
| modificationSourcesContainingPostfix.put(source.substring(0, atIndex), source); |
| } |
| } |
| } |
| request.getResourceResolver().commit(); |
| |
| } catch (Exception e) { |
| |
| log.error("Exception during response processing.", e); |
| response.setError(e); |
| |
| } |
| } |
| |
| private void updateProperties(Resource resource, Pattern updateProperties, Pattern rfind, String find, |
| String replace, PostResponse response, List<Modification> changes) { |
| ModifiableValueMap properties = resource.adaptTo(ModifiableValueMap.class); |
| boolean updated = false; |
| |
| if (properties == null) { |
| throw new SlingException("Failed to retrieve modifiable value map, cannot update properties", null); |
| } |
| |
| for (Entry<String, Object> entry : properties.entrySet()) { |
| |
| if (updateProperties.matcher(entry.getKey()).matches()) { |
| updated = updateProperty(resource, rfind, find, replace, properties, updated, entry); |
| } |
| } |
| if (updated) { |
| response.onModified(resource.getPath()); |
| changes.add(Modification.onModified(resource.getPath())); |
| } |
| for (Resource child : resource.getChildren()) { |
| updateProperties(child, updateProperties, rfind, find, replace, response, changes); |
| } |
| } |
| |
| @SuppressWarnings("unlikely-arg-type") |
| private boolean updateProperty(Resource resource, Pattern rfind, String find, String replace, |
| ModifiableValueMap properties, boolean updated, Entry<String, Object> entry) { |
| log.trace("Checking property {}@{}", resource.getPath(), entry.getKey()); |
| if (properties.get(entry.getKey()) instanceof String) { |
| String value = (String) entry.getValue(); |
| if (rfind == null && (value.contains(find) || value.equals(find))) { |
| value = value.replace(find, replace); |
| log.trace("Value after replacement: {}", value); |
| properties.put(entry.getKey(), value); |
| updated = true; |
| } else if (rfind != null) { |
| Matcher m = rfind.matcher(value); |
| if (m.find()) { |
| value = rfind.matcher(value).replaceAll(replace); |
| log.trace("Value after replacement: {}", value); |
| properties.put(entry.getKey(), value); |
| updated = true; |
| } |
| } |
| } else if (properties.get(entry) instanceof String[]) { |
| log.trace("Found array value"); |
| boolean arrUpdated = false; |
| String[] v = (String[]) entry.getValue(); |
| for (int i = 0; i < v.length; i++) { |
| String value = v[i]; |
| if (rfind == null && (value.contains(find) || value.equals(find))) { |
| v[i] = value.replace(find, replace); |
| arrUpdated = true; |
| } else if (rfind != null) { |
| Matcher m = rfind.matcher(value); |
| if (m.find()) { |
| v[i] = rfind.matcher(value).replaceAll(replace); |
| arrUpdated = true; |
| } |
| } |
| } |
| if (arrUpdated) { |
| if (log.isTraceEnabled()) { |
| log.trace("Value after replacement: {}", Arrays.toString(v)); |
| } |
| properties.put(entry.getKey(), v); |
| updated = true; |
| } |
| } |
| return updated; |
| } |
| } |