| /* |
| * Copyright (c) 1997-2018 Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed 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.naming.resources; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.FileNotFoundException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.net.URLDecoder; |
| import java.net.URLEncoder; |
| import java.security.Permission; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Date; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Vector; |
| import javax.naming.NamingException; |
| import javax.naming.NamingEnumeration; |
| import javax.naming.NameClassPair; |
| import javax.naming.directory.DirContext; |
| import javax.naming.directory.Attribute; |
| import javax.naming.directory.Attributes; |
| import org.apache.naming.JndiPermission; |
| |
| /** |
| * Connection to a JNDI directory context. |
| * <p/> |
| * Note: All the object attribute names are the WebDAV names, not the HTTP |
| * names, so this class overrides some methods from URLConnection to do the |
| * queries using the right names. Content handler is also not used; the |
| * content is directly returned. |
| * |
| * @author <a href="mailto:remm@apache.org">Remy Maucherat</a> |
| * @version $Revision: 1.3 $ |
| */ |
| public class DirContextURLConnection |
| extends URLConnection { |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| public DirContextURLConnection(DirContext context, URL url) { |
| super(url); |
| if (context == null) |
| throw new IllegalArgumentException |
| ("Directory context can't be null"); |
| if (IS_SECURITY_ENABLED) { |
| this.permission = new JndiPermission(url.toString()); |
| } |
| this.context = context; |
| } |
| |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| |
| /** |
| * Directory context. |
| */ |
| protected DirContext context; |
| |
| |
| /** |
| * Associated resource. |
| */ |
| protected Resource resource; |
| |
| |
| /** |
| * Associated DirContext. |
| */ |
| protected DirContext collection; |
| |
| |
| /** |
| * Other unknown object. |
| */ |
| protected Object object; |
| |
| |
| /** |
| * Attributes. |
| */ |
| protected Attributes attributes; |
| |
| |
| /** |
| * Date. |
| */ |
| protected long date; |
| |
| |
| /** |
| * Permission |
| */ |
| protected Permission permission; |
| |
| |
| /** |
| * Is the Java SecurityManager enabled? |
| */ |
| public static final boolean IS_SECURITY_ENABLED = |
| (System.getSecurityManager() != null); |
| |
| |
| // ------------------------------------------------------------- Properties |
| |
| |
| /** |
| * Connect to the DirContext, and retrive the bound object, as well as |
| * its attributes. If no object is bound with the name specified in the |
| * URL, then an IOException is thrown. |
| * |
| * @throws IOException Object not found |
| */ |
| public void connect() |
| throws IOException { |
| |
| if (!connected) { |
| |
| try { |
| date = System.currentTimeMillis(); |
| String path = getURL().getFile(); |
| if (context instanceof ProxyDirContext) { |
| ProxyDirContext proxyDirContext = |
| (ProxyDirContext) context; |
| String hostName = proxyDirContext.getHostName(); |
| String contextName = proxyDirContext.getContextName(); |
| if (hostName != null) { |
| if (!path.startsWith("/" + hostName + "/")) |
| return; |
| path = path.substring(hostName.length()+ 1); |
| } |
| if (contextName != null) { |
| if (!path.startsWith(contextName + "/")) { |
| return; |
| } else { |
| path = path.substring(contextName.length()); |
| } |
| } |
| } |
| path = URLDecoder.decode(path, "UTF-8"); |
| object = context.lookup(path); |
| attributes = context.getAttributes(path); |
| if (object instanceof Resource) |
| resource = (Resource) object; |
| if (object instanceof DirContext) |
| collection = (DirContext) object; |
| } catch (NamingException e) { |
| // Object not found |
| } |
| |
| connected = true; |
| |
| } |
| |
| } |
| |
| |
| /** |
| * Return the content length value. |
| */ |
| public int getContentLength() { |
| return getHeaderFieldInt(ResourceAttributes.CONTENT_LENGTH, -1); |
| } |
| |
| |
| /** |
| * Return the content type value. |
| */ |
| public String getContentType() { |
| return getHeaderField(ResourceAttributes.CONTENT_TYPE); |
| } |
| |
| |
| /** |
| * Return the last modified date. |
| */ |
| public long getDate() { |
| return date; |
| } |
| |
| |
| /** |
| * Return the last modified date. |
| */ |
| public long getLastModified() { |
| |
| if (!connected) { |
| // Try to connect (silently) |
| try { |
| connect(); |
| } catch (IOException e) { |
| } |
| } |
| |
| if (attributes == null) |
| return 0; |
| |
| Attribute lastModified = |
| attributes.get(ResourceAttributes.LAST_MODIFIED); |
| if (lastModified != null) { |
| try { |
| Date lmDate = (Date) lastModified.get(); |
| return lmDate.getTime(); |
| } catch (Exception e) { |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| /** |
| * Returns an unmodifiable Map of the header fields. |
| */ |
| public Map<String, List<String>> getHeaderFields() { |
| |
| if (!connected) { |
| // Try to connect (silently) |
| try { |
| connect(); |
| } catch (IOException e) { |
| } |
| } |
| |
| if (attributes == null) |
| return (Collections.emptyMap()); |
| |
| HashMap<String, List<String>> headerFields = |
| new HashMap<String, List<String>>(attributes.size()); |
| NamingEnumeration<String> attributeEnum = attributes.getIDs(); |
| try { |
| while (attributeEnum.hasMore()) { |
| String attributeID = attributeEnum.next(); |
| Attribute attribute = attributes.get(attributeID); |
| if (attribute == null) continue; |
| ArrayList<String> attributeValueList = |
| new ArrayList<String>(attribute.size()); |
| NamingEnumeration<?> attributeValues = attribute.getAll(); |
| while (attributeValues.hasMore()) { |
| attributeValueList.add(attributeValues.next().toString()); |
| } |
| attributeValueList.trimToSize(); // should be a no-op if attribute.size() didn't lie |
| headerFields.put(attributeID, Collections.unmodifiableList(attributeValueList)); |
| } |
| } catch (NamingException ne) { |
| // Shouldn't happen |
| } |
| |
| return Collections.unmodifiableMap(headerFields); |
| |
| } |
| |
| |
| /** |
| * Returns the name of the specified header field. |
| */ |
| public String getHeaderField(String name) { |
| |
| if (!connected) { |
| // Try to connect (silently) |
| try { |
| connect(); |
| } catch (IOException e) { |
| } |
| } |
| |
| if (attributes == null) |
| return (null); |
| |
| NamingEnumeration<String> attributeEnum = attributes.getIDs(); |
| try { |
| while (attributeEnum.hasMore()) { |
| String attributeID = attributeEnum.next(); |
| if (attributeID.equalsIgnoreCase(name)) { |
| Attribute attribute = attributes.get(attributeID); |
| if (attribute == null) return null; |
| return attribute.get(attribute.size()-1).toString(); |
| } |
| } |
| } catch (NamingException ne) { |
| // Shouldn't happen |
| } |
| |
| return (null); |
| |
| } |
| |
| |
| /** |
| * Get object content. |
| */ |
| public Object getContent() |
| throws IOException { |
| |
| if (!connected) |
| connect(); |
| |
| if (resource != null) |
| return getInputStream(); |
| if (collection != null) |
| return collection; |
| if (object != null) |
| return object; |
| |
| throw new FileNotFoundException(); |
| |
| } |
| |
| |
| /** |
| * Get object content. |
| */ |
| public Object getContent(Class[] classes) |
| throws IOException { |
| |
| Object object = getContent(); |
| |
| for (int i = 0; i < classes.length; i++) { |
| if (classes[i].isInstance(object)) |
| return object; |
| } |
| |
| return null; |
| |
| } |
| |
| |
| /** |
| * Get input stream. |
| */ |
| public InputStream getInputStream() |
| throws IOException { |
| |
| if (!connected) |
| connect(); |
| |
| if (resource == null) { |
| throw new FileNotFoundException(); |
| } else { |
| // Reopen resource |
| try { |
| resource = (Resource) context.lookup( |
| URLDecoder.decode(getURL().getFile(), "UTF-8")); |
| } catch (NamingException e) { |
| } |
| } |
| |
| return (resource.streamContent()); |
| |
| } |
| |
| |
| /** |
| * Get the Permission for this URL |
| */ |
| public Permission getPermission() { |
| |
| return permission; |
| } |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * List children of this collection. The names given are relative to this |
| * URI's path. The full uri of the children is then : path + "/" + name. |
| */ |
| public Enumeration<String> list() |
| throws IOException { |
| |
| if (!connected) { |
| connect(); |
| } |
| |
| if ((resource == null) && (collection == null)) { |
| throw new FileNotFoundException( |
| (getURL() == null)? "null" : getURL().toString()); |
| } |
| |
| Vector<String> result = new Vector<String>(); |
| |
| if (collection != null) { |
| try { |
| NamingEnumeration<NameClassPair> enumeration = |
| context.list(getURL().getFile()); |
| while (enumeration.hasMoreElements()) { |
| NameClassPair ncp = enumeration.nextElement(); |
| result.addElement( |
| URLEncoder.encode(ncp.getName(), "UTF-8")); |
| } |
| } catch (NamingException e) { |
| // Unexpected exception |
| throw new FileNotFoundException( |
| (getURL() == null)? "null" : getURL().toString()); |
| } |
| } |
| |
| return result.elements(); |
| |
| } |
| |
| |
| } |
