| /* |
| * Copyright 1999,2004 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.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Date; |
| import java.util.Hashtable; |
| |
| import javax.naming.NameAlreadyBoundException; |
| import javax.naming.NamingEnumeration; |
| import javax.naming.NamingException; |
| import javax.naming.OperationNotSupportedException; |
| import javax.naming.directory.Attributes; |
| import javax.naming.directory.DirContext; |
| import javax.naming.directory.ModificationItem; |
| import javax.naming.directory.SearchControls; |
| |
| import org.apache.naming.NamingContextBindingsEnumeration; |
| import org.apache.naming.NamingContextEnumeration; |
| import org.apache.naming.NamingEntry; |
| |
| /** |
| * Filesystem Directory Context implementation helper class. |
| * |
| * @author Remy Maucherat |
| * @version $Revision$ $Date$ |
| */ |
| |
| public class FileDirContext extends BaseDirContext { |
| |
| private static org.apache.commons.logging.Log log= |
| org.apache.commons.logging.LogFactory.getLog( FileDirContext.class ); |
| |
| // -------------------------------------------------------------- Constants |
| |
| |
| /** |
| * The descriptive information string for this implementation. |
| */ |
| protected static final int BUFFER_SIZE = 2048; |
| |
| |
| // ----------------------------------------------------------- Constructors |
| |
| |
| /** |
| * Builds a file directory context using the given environment. |
| */ |
| public FileDirContext() { |
| super(); |
| } |
| |
| |
| /** |
| * Builds a file directory context using the given environment. |
| */ |
| public FileDirContext(Hashtable env) { |
| super(env); |
| } |
| |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| |
| /** |
| * The document base directory. |
| */ |
| protected File base = null; |
| |
| |
| /** |
| * Absolute normalized filename of the base. |
| */ |
| protected String absoluteBase = null; |
| |
| |
| /** |
| * Case sensitivity. |
| */ |
| protected boolean caseSensitive = true; |
| |
| |
| /** |
| * Allow linking. |
| */ |
| protected boolean allowLinking = false; |
| |
| |
| // ------------------------------------------------------------- Properties |
| |
| |
| /** |
| * Set the document root. |
| * |
| * @param docBase The new document root |
| * |
| * @exception IllegalArgumentException if the specified value is not |
| * supported by this implementation |
| * @exception IllegalArgumentException if this would create a |
| * malformed URL |
| */ |
| public void setDocBase(String docBase) { |
| |
| // Validate the format of the proposed document root |
| if (docBase == null) |
| throw new IllegalArgumentException |
| (sm.getString("resources.null")); |
| |
| // Calculate a File object referencing this document base directory |
| base = new File(docBase); |
| try { |
| base = base.getCanonicalFile(); |
| } catch (IOException e) { |
| // Ignore |
| } |
| |
| // Validate that the document base is an existing directory |
| if (!base.exists() || !base.isDirectory() || !base.canRead()) |
| throw new IllegalArgumentException |
| (sm.getString("fileResources.base", docBase)); |
| this.absoluteBase = base.getAbsolutePath(); |
| super.setDocBase(docBase); |
| |
| } |
| |
| |
| /** |
| * Set case sensitivity. |
| */ |
| public void setCaseSensitive(boolean caseSensitive) { |
| this.caseSensitive = caseSensitive; |
| } |
| |
| |
| /** |
| * Is case sensitive ? |
| */ |
| public boolean isCaseSensitive() { |
| return caseSensitive; |
| } |
| |
| |
| /** |
| * Set allow linking. |
| */ |
| public void setAllowLinking(boolean allowLinking) { |
| this.allowLinking = allowLinking; |
| } |
| |
| |
| /** |
| * Is linking allowed. |
| */ |
| public boolean getAllowLinking() { |
| return allowLinking; |
| } |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * Release any resources allocated for this directory context. |
| */ |
| public void release() { |
| |
| caseSensitive = true; |
| allowLinking = false; |
| absoluteBase = null; |
| base = null; |
| super.release(); |
| |
| } |
| |
| |
| // -------------------------------------------------------- Context Methods |
| |
| |
| /** |
| * Retrieves the named object. |
| * |
| * @param name the name of the object to look up |
| * @return the object bound to name |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public Object lookup(String name) |
| throws NamingException { |
| Object result = null; |
| File file = file(name); |
| |
| if (file == null) |
| throw new NamingException |
| (sm.getString("resources.notFound", name)); |
| |
| if (file.isDirectory()) { |
| FileDirContext tempContext = new FileDirContext(env); |
| tempContext.setDocBase(file.getPath()); |
| result = tempContext; |
| } else { |
| result = new FileResource(file); |
| } |
| |
| return result; |
| |
| } |
| |
| |
| /** |
| * Unbinds the named object. Removes the terminal atomic name in name |
| * from the target context--that named by all but the terminal atomic |
| * part of name. |
| * <p> |
| * This method is idempotent. It succeeds even if the terminal atomic |
| * name is not bound in the target context, but throws |
| * NameNotFoundException if any of the intermediate contexts do not exist. |
| * |
| * @param name the name to bind; may not be empty |
| * @exception NameNotFoundException if an intermediate context does not |
| * exist |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public void unbind(String name) |
| throws NamingException { |
| |
| File file = file(name); |
| |
| if (file == null) |
| throw new NamingException |
| (sm.getString("resources.notFound", name)); |
| |
| if (!file.delete()) |
| throw new NamingException |
| (sm.getString("resources.unbindFailed", name)); |
| |
| } |
| |
| |
| /** |
| * Binds a new name to the object bound to an old name, and unbinds the |
| * old name. Both names are relative to this context. Any attributes |
| * associated with the old name become associated with the new name. |
| * Intermediate contexts of the old name are not changed. |
| * |
| * @param oldName the name of the existing binding; may not be empty |
| * @param newName the name of the new binding; may not be empty |
| * @exception NameAlreadyBoundException if newName is already bound |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public void rename(String oldName, String newName) |
| throws NamingException { |
| |
| File file = file(oldName); |
| |
| if (file == null) |
| throw new NamingException |
| (sm.getString("resources.notFound", oldName)); |
| |
| File newFile = new File(base, newName); |
| |
| file.renameTo(newFile); |
| |
| } |
| |
| |
| /** |
| * Enumerates the names bound in the named context, along with the class |
| * names of objects bound to them. The contents of any subcontexts are |
| * not included. |
| * <p> |
| * If a binding is added to or removed from this context, its effect on |
| * an enumeration previously returned is undefined. |
| * |
| * @param name the name of the context to list |
| * @return an enumeration of the names and class names of the bindings in |
| * this context. Each element of the enumeration is of type NameClassPair. |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public NamingEnumeration list(String name) |
| throws NamingException { |
| |
| File file = file(name); |
| |
| if (file == null) |
| throw new NamingException |
| (sm.getString("resources.notFound", name)); |
| |
| return new NamingContextEnumeration(list(file).iterator()); |
| |
| } |
| |
| |
| /** |
| * Enumerates the names bound in the named context, along with the |
| * objects bound to them. The contents of any subcontexts are not |
| * included. |
| * <p> |
| * If a binding is added to or removed from this context, its effect on |
| * an enumeration previously returned is undefined. |
| * |
| * @param name the name of the context to list |
| * @return an enumeration of the bindings in this context. |
| * Each element of the enumeration is of type Binding. |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public NamingEnumeration listBindings(String name) |
| throws NamingException { |
| |
| File file = file(name); |
| |
| if (file == null) |
| throw new NamingException |
| (sm.getString("resources.notFound", name)); |
| |
| return new NamingContextBindingsEnumeration(list(file).iterator()); |
| |
| } |
| |
| |
| /** |
| * Destroys the named context and removes it from the namespace. Any |
| * attributes associated with the name are also removed. Intermediate |
| * contexts are not destroyed. |
| * <p> |
| * This method is idempotent. It succeeds even if the terminal atomic |
| * name is not bound in the target context, but throws |
| * NameNotFoundException if any of the intermediate contexts do not exist. |
| * |
| * In a federated naming system, a context from one naming system may be |
| * bound to a name in another. One can subsequently look up and perform |
| * operations on the foreign context using a composite name. However, an |
| * attempt destroy the context using this composite name will fail with |
| * NotContextException, because the foreign context is not a "subcontext" |
| * of the context in which it is bound. Instead, use unbind() to remove |
| * the binding of the foreign context. Destroying the foreign context |
| * requires that the destroySubcontext() be performed on a context from |
| * the foreign context's "native" naming system. |
| * |
| * @param name the name of the context to be destroyed; may not be empty |
| * @exception NameNotFoundException if an intermediate context does not |
| * exist |
| * @exception NotContextException if the name is bound but does not name |
| * a context, or does not name a context of the appropriate type |
| */ |
| public void destroySubcontext(String name) |
| throws NamingException { |
| unbind(name); |
| } |
| |
| |
| /** |
| * Retrieves the named object, following links except for the terminal |
| * atomic component of the name. If the object bound to name is not a |
| * link, returns the object itself. |
| * |
| * @param name the name of the object to look up |
| * @return the object bound to name, not following the terminal link |
| * (if any). |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public Object lookupLink(String name) |
| throws NamingException { |
| // Note : Links are not supported |
| return lookup(name); |
| } |
| |
| |
| /** |
| * Retrieves the full name of this context within its own namespace. |
| * <p> |
| * Many naming services have a notion of a "full name" for objects in |
| * their respective namespaces. For example, an LDAP entry has a |
| * distinguished name, and a DNS record has a fully qualified name. This |
| * method allows the client application to retrieve this name. The string |
| * returned by this method is not a JNDI composite name and should not be |
| * passed directly to context methods. In naming systems for which the |
| * notion of full name does not make sense, |
| * OperationNotSupportedException is thrown. |
| * |
| * @return this context's name in its own namespace; never null |
| * @exception OperationNotSupportedException if the naming system does |
| * not have the notion of a full name |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public String getNameInNamespace() |
| throws NamingException { |
| return docBase; |
| } |
| |
| |
| // ----------------------------------------------------- DirContext Methods |
| |
| |
| /** |
| * Retrieves selected attributes associated with a named object. |
| * See the class description regarding attribute models, attribute type |
| * names, and operational attributes. |
| * |
| * @return the requested attributes; never null |
| * @param name the name of the object from which to retrieve attributes |
| * @param attrIds the identifiers of the attributes to retrieve. null |
| * indicates that all attributes should be retrieved; an empty array |
| * indicates that none should be retrieved |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public Attributes getAttributes(String name, String[] attrIds) |
| throws NamingException { |
| |
| // Building attribute list |
| File file = file(name); |
| |
| if (file == null) |
| throw new NamingException |
| (sm.getString("resources.notFound", name)); |
| |
| return new FileResourceAttributes(file); |
| |
| } |
| |
| |
| /** |
| * Modifies the attributes associated with a named object. The order of |
| * the modifications is not specified. Where possible, the modifications |
| * are performed atomically. |
| * |
| * @param name the name of the object whose attributes will be updated |
| * @param mod_op the modification operation, one of: ADD_ATTRIBUTE, |
| * REPLACE_ATTRIBUTE, REMOVE_ATTRIBUTE |
| * @param attrs the attributes to be used for the modification; may not |
| * be null |
| * @exception AttributeModificationException if the modification cannot be |
| * completed successfully |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public void modifyAttributes(String name, int mod_op, Attributes attrs) |
| throws NamingException { |
| |
| } |
| |
| |
| /** |
| * Modifies the attributes associated with a named object using an an |
| * ordered list of modifications. The modifications are performed in the |
| * order specified. Each modification specifies a modification operation |
| * code and an attribute on which to operate. Where possible, the |
| * modifications are performed atomically. |
| * |
| * @param name the name of the object whose attributes will be updated |
| * @param mods an ordered sequence of modifications to be performed; may |
| * not be null |
| * @exception AttributeModificationException if the modification cannot be |
| * completed successfully |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public void modifyAttributes(String name, ModificationItem[] mods) |
| throws NamingException { |
| |
| } |
| |
| |
| /** |
| * Binds a name to an object, along with associated attributes. If attrs |
| * is null, the resulting binding will have the attributes associated |
| * with obj if obj is a DirContext, and no attributes otherwise. If attrs |
| * is non-null, the resulting binding will have attrs as its attributes; |
| * any attributes associated with obj are ignored. |
| * |
| * @param name the name to bind; may not be empty |
| * @param obj the object to bind; possibly null |
| * @param attrs the attributes to associate with the binding |
| * @exception NameAlreadyBoundException if name is already bound |
| * @exception InvalidAttributesException if some "mandatory" attributes |
| * of the binding are not supplied |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public void bind(String name, Object obj, Attributes attrs) |
| throws NamingException { |
| |
| // Note: No custom attributes allowed |
| |
| File file = new File(base, name); |
| if (file.exists()) |
| throw new NameAlreadyBoundException |
| (sm.getString("resources.alreadyBound", name)); |
| |
| rebind(name, obj, attrs); |
| |
| } |
| |
| |
| /** |
| * Binds a name to an object, along with associated attributes, |
| * overwriting any existing binding. If attrs is null and obj is a |
| * DirContext, the attributes from obj are used. If attrs is null and obj |
| * is not a DirContext, any existing attributes associated with the object |
| * already bound in the directory remain unchanged. If attrs is non-null, |
| * any existing attributes associated with the object already bound in |
| * the directory are removed and attrs is associated with the named |
| * object. If obj is a DirContext and attrs is non-null, the attributes |
| * of obj are ignored. |
| * |
| * @param name the name to bind; may not be empty |
| * @param obj the object to bind; possibly null |
| * @param attrs the attributes to associate with the binding |
| * @exception InvalidAttributesException if some "mandatory" attributes |
| * of the binding are not supplied |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public void rebind(String name, Object obj, Attributes attrs) |
| throws NamingException { |
| |
| // Note: No custom attributes allowed |
| // Check obj type |
| |
| File file = new File(base, name); |
| |
| InputStream is = null; |
| if (obj instanceof Resource) { |
| try { |
| is = ((Resource) obj).streamContent(); |
| } catch (IOException e) { |
| } |
| } else if (obj instanceof InputStream) { |
| is = (InputStream) obj; |
| } else if (obj instanceof DirContext) { |
| if (file.exists()) { |
| if (!file.delete()) |
| throw new NamingException |
| (sm.getString("resources.bindFailed", name)); |
| } |
| if (!file.mkdir()) |
| throw new NamingException |
| (sm.getString("resources.bindFailed", name)); |
| } |
| if (is == null) |
| throw new NamingException |
| (sm.getString("resources.bindFailed", name)); |
| |
| // Open os |
| |
| try { |
| FileOutputStream os = null; |
| byte buffer[] = new byte[BUFFER_SIZE]; |
| int len = -1; |
| try { |
| os = new FileOutputStream(file); |
| while (true) { |
| len = is.read(buffer); |
| if (len == -1) |
| break; |
| os.write(buffer, 0, len); |
| } |
| } finally { |
| if (os != null) |
| os.close(); |
| is.close(); |
| } |
| } catch (IOException e) { |
| throw new NamingException |
| (sm.getString("resources.bindFailed", e)); |
| } |
| |
| } |
| |
| |
| /** |
| * Creates and binds a new context, along with associated attributes. |
| * This method creates a new subcontext with the given name, binds it in |
| * the target context (that named by all but terminal atomic component of |
| * the name), and associates the supplied attributes with the newly |
| * created object. All intermediate and target contexts must already |
| * exist. If attrs is null, this method is equivalent to |
| * Context.createSubcontext(). |
| * |
| * @param name the name of the context to create; may not be empty |
| * @param attrs the attributes to associate with the newly created context |
| * @return the newly created context |
| * @exception NameAlreadyBoundException if the name is already bound |
| * @exception InvalidAttributesException if attrs does not contain all |
| * the mandatory attributes required for creation |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public DirContext createSubcontext(String name, Attributes attrs) |
| throws NamingException { |
| |
| File file = new File(base, name); |
| if (file.exists()) |
| throw new NameAlreadyBoundException |
| (sm.getString("resources.alreadyBound", name)); |
| if (!file.mkdir()) |
| throw new NamingException |
| (sm.getString("resources.bindFailed", name)); |
| return (DirContext) lookup(name); |
| |
| } |
| |
| |
| /** |
| * Retrieves the schema associated with the named object. The schema |
| * describes rules regarding the structure of the namespace and the |
| * attributes stored within it. The schema specifies what types of |
| * objects can be added to the directory and where they can be added; |
| * what mandatory and optional attributes an object can have. The range |
| * of support for schemas is directory-specific. |
| * |
| * @param name the name of the object whose schema is to be retrieved |
| * @return the schema associated with the context; never null |
| * @exception OperationNotSupportedException if schema not supported |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public DirContext getSchema(String name) |
| throws NamingException { |
| throw new OperationNotSupportedException(); |
| } |
| |
| |
| /** |
| * Retrieves a context containing the schema objects of the named |
| * object's class definitions. |
| * |
| * @param name the name of the object whose object class definition is to |
| * be retrieved |
| * @return the DirContext containing the named object's class |
| * definitions; never null |
| * @exception OperationNotSupportedException if schema not supported |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public DirContext getSchemaClassDefinition(String name) |
| throws NamingException { |
| throw new OperationNotSupportedException(); |
| } |
| |
| |
| /** |
| * Searches in a single context for objects that contain a specified set |
| * of attributes, and retrieves selected attributes. The search is |
| * performed using the default SearchControls settings. |
| * |
| * @param name the name of the context to search |
| * @param matchingAttributes the attributes to search for. If empty or |
| * null, all objects in the target context are returned. |
| * @param attributesToReturn the attributes to return. null indicates |
| * that all attributes are to be returned; an empty array indicates that |
| * none are to be returned. |
| * @return a non-null enumeration of SearchResult objects. Each |
| * SearchResult contains the attributes identified by attributesToReturn |
| * and the name of the corresponding object, named relative to the |
| * context named by name. |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public NamingEnumeration search(String name, Attributes matchingAttributes, |
| String[] attributesToReturn) |
| throws NamingException { |
| return null; |
| } |
| |
| |
| /** |
| * Searches in a single context for objects that contain a specified set |
| * of attributes. This method returns all the attributes of such objects. |
| * It is equivalent to supplying null as the atributesToReturn parameter |
| * to the method search(Name, Attributes, String[]). |
| * |
| * @param name the name of the context to search |
| * @param matchingAttributes the attributes to search for. If empty or |
| * null, all objects in the target context are returned. |
| * @return a non-null enumeration of SearchResult objects. Each |
| * SearchResult contains the attributes identified by attributesToReturn |
| * and the name of the corresponding object, named relative to the |
| * context named by name. |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public NamingEnumeration search(String name, Attributes matchingAttributes) |
| throws NamingException { |
| return null; |
| } |
| |
| |
| /** |
| * Searches in the named context or object for entries that satisfy the |
| * given search filter. Performs the search as specified by the search |
| * controls. |
| * |
| * @param name the name of the context or object to search |
| * @param filter the filter expression to use for the search; may not be |
| * null |
| * @param cons the search controls that control the search. If null, |
| * the default search controls are used (equivalent to |
| * (new SearchControls())). |
| * @return an enumeration of SearchResults of the objects that satisfy |
| * the filter; never null |
| * @exception InvalidSearchFilterException if the search filter specified |
| * is not supported or understood by the underlying directory |
| * @exception InvalidSearchControlsException if the search controls |
| * contain invalid settings |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public NamingEnumeration search(String name, String filter, |
| SearchControls cons) |
| throws NamingException { |
| return null; |
| } |
| |
| |
| /** |
| * Searches in the named context or object for entries that satisfy the |
| * given search filter. Performs the search as specified by the search |
| * controls. |
| * |
| * @param name the name of the context or object to search |
| * @param filterExpr the filter expression to use for the search. |
| * The expression may contain variables of the form "{i}" where i is a |
| * nonnegative integer. May not be null. |
| * @param filterArgs the array of arguments to substitute for the |
| * variables in filterExpr. The value of filterArgs[i] will replace each |
| * occurrence of "{i}". If null, equivalent to an empty array. |
| * @param cons the search controls that control the search. If null, the |
| * default search controls are used (equivalent to (new SearchControls())). |
| * @return an enumeration of SearchResults of the objects that satisy the |
| * filter; never null |
| * @exception ArrayIndexOutOfBoundsException if filterExpr contains {i} |
| * expressions where i is outside the bounds of the array filterArgs |
| * @exception InvalidSearchControlsException if cons contains invalid |
| * settings |
| * @exception InvalidSearchFilterException if filterExpr with filterArgs |
| * represents an invalid search filter |
| * @exception NamingException if a naming exception is encountered |
| */ |
| public NamingEnumeration search(String name, String filterExpr, |
| Object[] filterArgs, SearchControls cons) |
| throws NamingException { |
| return null; |
| } |
| |
| |
| // ------------------------------------------------------ Protected Methods |
| |
| |
| /** |
| * Return a context-relative path, beginning with a "/", that represents |
| * the canonical version of the specified path after ".." and "." elements |
| * are resolved out. If the specified path attempts to go outside the |
| * boundaries of the current context (i.e. too many ".." path elements |
| * are present), return <code>null</code> instead. |
| * |
| * @param path Path to be normalized |
| */ |
| protected String normalize(String path) { |
| |
| String normalized = path; |
| |
| // Normalize the slashes and add leading slash if necessary |
| if (normalized.indexOf('\\') >= 0) |
| normalized = normalized.replace('\\', '/'); |
| if (!normalized.startsWith("/")) |
| normalized = "/" + normalized; |
| |
| // Resolve occurrences of "//" in the normalized path |
| while (true) { |
| int index = normalized.indexOf("//"); |
| if (index < 0) |
| break; |
| normalized = normalized.substring(0, index) + |
| normalized.substring(index + 1); |
| } |
| |
| // Resolve occurrences of "/./" in the normalized path |
| while (true) { |
| int index = normalized.indexOf("/./"); |
| if (index < 0) |
| break; |
| normalized = normalized.substring(0, index) + |
| normalized.substring(index + 2); |
| } |
| |
| // Resolve occurrences of "/../" in the normalized path |
| while (true) { |
| int index = normalized.indexOf("/../"); |
| if (index < 0) |
| break; |
| if (index == 0) |
| return (null); // Trying to go outside our context |
| int index2 = normalized.lastIndexOf('/', index - 1); |
| normalized = normalized.substring(0, index2) + |
| normalized.substring(index + 3); |
| } |
| |
| // Return the normalized path that we have completed |
| return (normalized); |
| |
| } |
| |
| |
| /** |
| * Return a File object representing the specified normalized |
| * context-relative path if it exists and is readable. Otherwise, |
| * return <code>null</code>. |
| * |
| * @param name Normalized context-relative path (with leading '/') |
| */ |
| protected File file(String name) { |
| |
| File file = new File(base, name); |
| if (file.exists() && file.canRead()) { |
| |
| if (allowLinking) |
| return file; |
| |
| // Check that this file belongs to our root path |
| String canPath = null; |
| try { |
| canPath = file.getCanonicalPath(); |
| } catch (IOException e) { |
| } |
| if (canPath == null) |
| return null; |
| |
| // Check to see if going outside of the web application root |
| if (!canPath.startsWith(absoluteBase)) { |
| return null; |
| } |
| |
| // Case sensitivity check |
| if (caseSensitive) { |
| String fileAbsPath = file.getAbsolutePath(); |
| if (fileAbsPath.endsWith(".")) |
| fileAbsPath = fileAbsPath + "/"; |
| String absPath = normalize(fileAbsPath); |
| if (canPath != null) |
| canPath = normalize(canPath); |
| if ((absoluteBase.length() < absPath.length()) |
| && (absoluteBase.length() < canPath.length())) { |
| absPath = absPath.substring(absoluteBase.length() + 1); |
| if ((canPath == null) || (absPath == null)) |
| return null; |
| if (absPath.equals("")) |
| absPath = "/"; |
| canPath = canPath.substring(absoluteBase.length() + 1); |
| if (canPath.equals("")) |
| canPath = "/"; |
| if (!canPath.equals(absPath)) |
| return null; |
| } |
| } |
| |
| } else { |
| return null; |
| } |
| return file; |
| |
| } |
| |
| |
| /** |
| * List the resources which are members of a collection. |
| * |
| * @param file Collection |
| * @return Vector containg NamingEntry objects |
| */ |
| protected ArrayList list(File file) { |
| |
| ArrayList entries = new ArrayList(); |
| if (!file.isDirectory()) |
| return entries; |
| String[] names = file.list(); |
| if (names==null) { |
| /* Some IO error occurred such as bad file permissions. |
| Prevent a NPE with Arrays.sort(names) */ |
| log.warn(sm.getString("fileResources.listingNull", |
| file.getAbsolutePath())); |
| return entries; |
| } |
| |
| Arrays.sort(names); // Sort alphabetically |
| if (names == null) |
| return entries; |
| NamingEntry entry = null; |
| |
| for (int i = 0; i < names.length; i++) { |
| |
| File currentFile = new File(file, names[i]); |
| Object object = null; |
| if (currentFile.isDirectory()) { |
| FileDirContext tempContext = new FileDirContext(env); |
| tempContext.setDocBase(file.getPath()); |
| object = tempContext; |
| } else { |
| object = new FileResource(currentFile); |
| } |
| entry = new NamingEntry(names[i], object, NamingEntry.ENTRY); |
| entries.add(entry); |
| |
| } |
| |
| return entries; |
| |
| } |
| |
| |
| // ----------------------------------------------- FileResource Inner Class |
| |
| |
| /** |
| * This specialized resource implementation avoids opening the IputStream |
| * to the file right away (which would put a lock on the file). |
| */ |
| protected class FileResource extends Resource { |
| |
| |
| // -------------------------------------------------------- Constructor |
| |
| |
| public FileResource(File file) { |
| this.file = file; |
| } |
| |
| |
| // --------------------------------------------------- Member Variables |
| |
| |
| /** |
| * Associated file object. |
| */ |
| protected File file; |
| |
| |
| /** |
| * File length. |
| */ |
| protected long length = -1L; |
| |
| |
| // --------------------------------------------------- Resource Methods |
| |
| |
| /** |
| * Content accessor. |
| * |
| * @return InputStream |
| */ |
| public InputStream streamContent() |
| throws IOException { |
| if (binaryContent == null) { |
| inputStream = new FileInputStream(file); |
| } |
| return super.streamContent(); |
| } |
| |
| |
| } |
| |
| |
| // ------------------------------------- FileResourceAttributes Inner Class |
| |
| |
| /** |
| * This specialized resource attribute implementation does some lazy |
| * reading (to speed up simple checks, like checking the last modified |
| * date). |
| */ |
| protected class FileResourceAttributes extends ResourceAttributes { |
| |
| |
| // -------------------------------------------------------- Constructor |
| |
| |
| public FileResourceAttributes(File file) { |
| this.file = file; |
| } |
| |
| // --------------------------------------------------- Member Variables |
| |
| |
| protected File file; |
| |
| |
| protected boolean accessed = false; |
| |
| |
| // ----------------------------------------- ResourceAttributes Methods |
| |
| |
| /** |
| * Is collection. |
| */ |
| public boolean isCollection() { |
| if (!accessed) { |
| collection = file.isDirectory(); |
| accessed = true; |
| } |
| return super.isCollection(); |
| } |
| |
| |
| /** |
| * Get content length. |
| * |
| * @return content length value |
| */ |
| public long getContentLength() { |
| if (contentLength != -1L) |
| return contentLength; |
| contentLength = file.length(); |
| return contentLength; |
| } |
| |
| |
| /** |
| * Get creation time. |
| * |
| * @return creation time value |
| */ |
| public long getCreation() { |
| if (creation != -1L) |
| return creation; |
| creation = file.lastModified(); |
| return creation; |
| } |
| |
| |
| /** |
| * Get creation date. |
| * |
| * @return Creation date value |
| */ |
| public Date getCreationDate() { |
| if (creation == -1L) { |
| creation = file.lastModified(); |
| } |
| return super.getCreationDate(); |
| } |
| |
| |
| /** |
| * Get last modified time. |
| * |
| * @return lastModified time value |
| */ |
| public long getLastModified() { |
| if (lastModified != -1L) |
| return lastModified; |
| lastModified = file.lastModified(); |
| return lastModified; |
| } |
| |
| |
| /** |
| * Get lastModified date. |
| * |
| * @return LastModified date value |
| */ |
| public Date getLastModifiedDate() { |
| if (lastModified == -1L) { |
| lastModified = file.lastModified(); |
| } |
| return super.getLastModifiedDate(); |
| } |
| |
| |
| /** |
| * Get name. |
| * |
| * @return Name value |
| */ |
| public String getName() { |
| if (name == null) |
| name = file.getName(); |
| return name; |
| } |
| |
| |
| /** |
| * Get resource type. |
| * |
| * @return String resource type |
| */ |
| public String getResourceType() { |
| if (!accessed) { |
| collection = file.isDirectory(); |
| accessed = true; |
| } |
| return super.getResourceType(); |
| } |
| |
| |
| } |
| |
| |
| } |
| |
