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1
18 package net.sf.drftpd.remotefile;
19
20 import java.io.File  ;
21 import java.io.FileNotFoundException ;
22 import java.io.IOException ;
23 import java.util.ArrayList ;
24 import java.util.Collection ;
25 import java.util.Hashtable ;
26 import java.util.Iterator ;
27
28 import net.sf.drftpd.FatalException;
29 import net.sf.drftpd.InvalidDirectoryException;
30 import net.sf.drftpd.slave.Root;
31 import net.sf.drftpd.slave.RootBasket;
32
33
39 public class FileRemoteFile extends AbstractRemoteFile {
40 RootBasket rootBasket;
41 String path;
42
43 public FileRemoteFile(RootBasket rootBasket) throws IOException {
44 this(rootBasket, "");
45 }
46 private boolean isFile;
47 private boolean isDirectory;
48 private long length;
49
50 public FileRemoteFile(RootBasket rootBasket, String path)
51 throws IOException {
52 this.path = path;
56 this.rootBasket = rootBasket;
57
59 boolean first = true;
61 for (Iterator iter = rootBasket.iterator(); iter.hasNext();) {
62 Root root = (Root) iter.next();
63 File file = root.getFile(path);
64
65 if (!file.exists())
66 continue;
67
68
77 if (first) {
78 first = false;
79 isDirectory = file.isDirectory();
80 isFile = file.isFile();
81 if ((!isFile() && !isDirectory())
82 || (isFile() && isDirectory)) {
83 throw new IOException (
84 "(!isFile() && !isDirectory()) || (isFile() && isDirectory): "
85 + isFile()
86 + isDirectory()
87 + " "
88 + path);
89 }
90 if (isDirectory()) {
91 length = 0;
92 } else {
93 length = file.length();
94 }
95 } else {
96 if (file.isDirectory() != isDirectory)
97 throw new IOException (
98 "roots are out of sync, dir&file mix: " + path);
99 if (file.isFile() != isFile)
100 throw new IOException (
101 "roots are out of sync, file&dir mix: " + path);
102 if (isFile)
103 throw new IOException ("File collision: " + path);
104 }
106
107 if (!file
108 .getCanonicalPath()
109 .equalsIgnoreCase(file.getAbsolutePath())) {
110 throw new InvalidDirectoryException(
111 "Not following symlink: " + file.getAbsolutePath());
112 }
113 }
114 }
115
116 private File getFile() {
117 try {
118 return rootBasket.getFile(getPath());
119 } catch (FileNotFoundException ex) {
120 throw new RuntimeException (ex);
121 }
122 }
123
124 public String getName() {
125 return path.substring(path.lastIndexOf(File.separatorChar) + 1).toString();
126 }
127
128 public String getParent() {
129 throw new UnsupportedOperationException ();
130 }
132
133 public String getPath() {
134 return path;
135 }
138
139 public String getGroupname() {
140 return "drftpd";
141 }
142
143 public String getUsername() {
144 return "drftpd";
145 }
146
147 public boolean isDirectory() {
148 return isDirectory;
149 }
150
151 public boolean isFile() {
152 return isFile;
153 }
154
155 public long lastModified() {
156 return this.getFile().lastModified();
157 }
158
159 public long length() {
160 if (isDirectory()) {
161 return 0;
162 }
163 return getFile().length();
164 }
165
166
169 public RemoteFileInterface[] listFiles() {
170 return (RemoteFileInterface[]) getFiles().toArray(
171 new FileRemoteFile[0]);
172 }
173
174 Hashtable filefiles;
175 private void buildFileFiles() {
176 if (filefiles != null)
177 return;
178 filefiles = new Hashtable ();
179
180 if (!isDirectory()) {
181 throw new IllegalArgumentException ("listFiles() called on !isDirectory()");
182 }
183 for (Iterator iter = rootBasket.iterator(); iter.hasNext();) {
184 Root root = (Root) iter.next();
185 File file = new File (root.getPath() + "/" + path);
186 if (!file.exists())
187 continue;
188 if (!file.isDirectory())
189 throw new FatalException(
190 file.getPath()
191 + " is not a directory, attempt to getFiles() on it");
192 if (!file.canRead())
193 throw new FatalException("Cannot read: " + file);
194 File tmpFiles[] = file.listFiles();
195 if (tmpFiles == null)
197 throw new NullPointerException (
198 "list() on " + file + " returned null");
199 for (int i = 0; i < tmpFiles.length; i++) {
200 try {
201 if (tmpFiles[i].isDirectory() && isEmpty(tmpFiles[i])) {
202 continue;
203 }
204 FileRemoteFile listfile =
205 new FileRemoteFile(
206 rootBasket,
207 path + File.separatorChar + tmpFiles[i].getName());
208 filefiles.put(tmpFiles[i].getName(), listfile);
209 } catch (IOException e) {
210 e.printStackTrace();
211 }
212 }
213 }
214 if(!getName().equals("") && filefiles.isEmpty()) throw new RuntimeException ();
215 }
216
219 public Collection getFiles() {
220 buildFileFiles();
221 return filefiles.values();
222 }
223
224
227 private static boolean isEmpty(File dir) {
228 File listfiles[] = dir.listFiles();
229 if (listfiles == null)
230 throw new FatalException("Not a directory or IO error: " + dir);
231 for (int i = 0; i < listfiles.length; i++) {
232 File file = listfiles[i];
233 if (file.isFile())
234 return false;
235 }
236
237 for (int i = 0; i < listfiles.length; i++) {
238 File file = listfiles[i];
239 if (!isEmpty(file))
241 return false;
242 }
243 dir.delete();
244 return true;
245 }
246
247 public Collection getSlaves() {
248 return new ArrayList ();
249 }
250
251 public boolean isDeleted() {
252 return false;
253 }
254 }
255 |
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