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1
28
29 package com.caucho.servlets.webdav;
30
31 import com.caucho.server.webapp.Application;
32 import com.caucho.util.CharBuffer;
33 import com.caucho.vfs.Path;
34
35 import org.xml.sax.Attributes  ;
36 import org.xml.sax.SAXException ;
37
38 import javax.servlet.ServletContext ;
39 import javax.servlet.http.HttpServletRequest ;
40 import java.io.IOException ;
41 import java.util.ArrayList ;
42 import java.util.HashMap ;
43 import java.util.Iterator ;
44
45
48 public class XmlApplicationPath extends ApplicationPath {
49 private Path _root;
50 private HashMap _map = new HashMap ();
51
52 public XmlApplicationPath()
53 {
54 }
55
56
59 public void setRoot(Path path)
60 {
61 _root = path;
62 }
63
64
67 public Path getRoot()
68 {
69 return _root;
70 }
71
72
79 public boolean remove(String path,
80 HttpServletRequest request,
81 ServletContext app)
82 throws IOException
83 {
84 removeAttributes(path);
85
86 return super.remove(path, request, app);
87 }
88
89
97 public Iterator getAttributeNames(String path,
98 HttpServletRequest request,
99 ServletContext app)
100 throws IOException
101 {
102 FileAttributes attrs = getAttributes(path);
103
104 if (attrs != null)
105 return attrs.getAttributeNames();
106 else
107 return null;
108 }
109
110
118 public String getAttribute(AttributeName name,
119 String path,
120 HttpServletRequest request,
121 ServletContext app)
122 throws IOException
123 {
124 FileAttributes attrs = getAttributes(path);
125
126 if (attrs != null)
127 return attrs.getAttribute(name);
128 else
129 return null;
130 }
131
132
143 public boolean setAttribute(AttributeName name, String value,
144 String path,
145 HttpServletRequest request,
146 ServletContext app)
147 throws IOException
148 {
149 FileAttributes attrs = getAttributes(path);
150
151 if (attrs != null)
152 return attrs.setAttribute(name, value);
153 else
154 return false;
155 }
156
157
165 public boolean removeAttribute(AttributeName name,
166 String path,
167 HttpServletRequest request,
168 ServletContext app)
169 throws IOException
170 {
171 FileAttributes attrs = getAttributes(path);
172
173 if (attrs != null)
174 attrs.removeAttribute(name);
175
176 return true;
177 }
178
179 protected FileAttributes getAttributes(String path)
180 {
181 FileAttributes attrs = (FileAttributes) _map.get(path);
182
183 if (attrs == null) {
184 attrs = new FileAttributes();
185 _map.put(path, attrs);
186 }
187
188 return attrs;
189 }
190
191 protected void removeAttributes(String path)
192 {
193 _map.remove(path);
194 }
195
196
201 public String []list(String path,
202 HttpServletRequest request,
203 ServletContext app)
204 throws IOException
205 {
206 ArrayList filteredList = new ArrayList ();
207
208 String []names = getPath(path, request, app).list();
209
210 for (int i = 0; i < names.length; i++) {
211 if (! names[i].startsWith("."))
212 filteredList.add(names[i]);
213 }
214
215 return (String []) filteredList.toArray(new String [filteredList.size()]);
216 }
217
218
221 protected Path getPath(String path,
222 HttpServletRequest request,
223 ServletContext app)
224 throws IOException
225 {
226 Path appDir = ((Application) app).getAppDir();
227
228 if (_root != null)
229 appDir = _root;
230
231 Path filePath = appDir.lookup("./" + path);
232 String tail = filePath.getTail();
233
234 if (tail.startsWith("."))
235 return filePath.getParent().lookup(".bogus");
236 else
237 return filePath;
238 }
239
240 public static class FileAttributes {
241 HashMap attributes = new HashMap ();
242
243
247 public Iterator getAttributeNames()
248 throws IOException
249 {
250 return attributes.keySet().iterator();
251 }
252
253
256 public String getAttribute(AttributeName name)
257 throws IOException
258 {
259 return (String ) attributes.get(name);
260 }
261
262
270 public boolean setAttribute(AttributeName name, String value)
271 {
272 attributes.put(name, value);
273
274 return true;
275 }
276
277
282 public void removeAttribute(AttributeName name)
283 throws IOException
284 {
285 attributes.remove(name);
286 }
287 }
288
289 static class AttributeHandler extends org.xml.sax.helpers.DefaultHandler {
290 HashMap fileMap = new HashMap ();
291 AttributeName attributeName;
292 String fileName;
293 CharBuffer value;
294
295 boolean inHref;
296 FileAttributes fileAttributes;
297
298 HashMap getFileMap()
299 {
300 return fileMap;
301 }
302
303 public void startElement(String uri, String localName,
304 String qName, Attributes attributes)
305 {
306 if (localName.equals("file")) {
307 fileName = null;
308 fileAttributes = new FileAttributes();
309 }
310 else if (localName.equals("href")) {
311 inHref = true;
312 value = CharBuffer.allocate();
313 }
314 else if (attributeName == null) {
315 attributeName = new AttributeName(uri, localName, qName);
316 value = CharBuffer.allocate();
317 }
318 }
319
320 public void characters(char []buffer, int offset, int length)
321 {
322 if (value != null)
323 value.append(buffer, offset, length);
324 }
325
326 public void endElement (String uri, String localName, String qName)
327 throws SAXException
328 {
329 if (localName.equals("file")) {
330 if (fileName != null)
331 fileMap.put(fileName, fileAttributes);
332 fileName = null;
333 fileAttributes = null;
334 }
335 else if (localName.equals("href")) {
336 fileName = value.close();
337 value = null;
338 }
339 else if (attributeName == null) {
340 }
341 else if (localName.equals(attributeName.getLocal()) &&
342 uri.equals(attributeName.getNamespace())) {
343 fileAttributes.setAttribute(attributeName, value.close());
344
345 value = null;
346 attributeName = null;
347 }
348 }
349 }
350 }
351 |
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