2
|
1 |
/*
|
|
2 |
* Copyright 1994-2006 Sun Microsystems, Inc. All Rights Reserved.
|
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
4 |
*
|
|
5 |
* This code is free software; you can redistribute it and/or modify it
|
|
6 |
* under the terms of the GNU General Public License version 2 only, as
|
|
7 |
* published by the Free Software Foundation. Sun designates this
|
|
8 |
* particular file as subject to the "Classpath" exception as provided
|
|
9 |
* by Sun in the LICENSE file that accompanied this code.
|
|
10 |
*
|
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that
|
|
15 |
* accompanied this code).
|
|
16 |
*
|
|
17 |
* You should have received a copy of the GNU General Public License version
|
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
20 |
*
|
|
21 |
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
|
22 |
* CA 95054 USA or visit www.sun.com if you need additional information or
|
|
23 |
* have any questions.
|
|
24 |
*/
|
|
25 |
|
|
26 |
/**
|
|
27 |
* FTP stream opener.
|
|
28 |
*/
|
|
29 |
|
|
30 |
package sun.net.www.protocol.ftp;
|
|
31 |
|
|
32 |
import java.io.IOException;
|
|
33 |
import java.io.InputStream;
|
|
34 |
import java.io.OutputStream;
|
|
35 |
import java.io.BufferedInputStream;
|
|
36 |
import java.io.FilterInputStream;
|
|
37 |
import java.io.FilterOutputStream;
|
|
38 |
import java.io.FileNotFoundException;
|
|
39 |
import java.net.URL;
|
|
40 |
import java.net.URLStreamHandler;
|
|
41 |
import java.net.SocketPermission;
|
|
42 |
import java.net.UnknownHostException;
|
|
43 |
import java.net.MalformedURLException;
|
|
44 |
import java.net.InetSocketAddress;
|
|
45 |
import java.net.URI;
|
|
46 |
import java.net.Proxy;
|
|
47 |
import java.net.ProxySelector;
|
|
48 |
import java.util.StringTokenizer;
|
|
49 |
import java.util.Iterator;
|
|
50 |
import java.security.Permission;
|
|
51 |
import sun.net.www.MessageHeader;
|
|
52 |
import sun.net.www.MeteredStream;
|
|
53 |
import sun.net.www.URLConnection;
|
|
54 |
import sun.net.www.protocol.http.HttpURLConnection;
|
|
55 |
import sun.net.ftp.FtpClient;
|
|
56 |
import sun.net.ftp.FtpProtocolException;
|
|
57 |
import sun.net.ProgressSource;
|
|
58 |
import sun.net.ProgressMonitor;
|
|
59 |
import sun.net.www.ParseUtil;
|
|
60 |
import sun.security.action.GetPropertyAction;
|
|
61 |
|
|
62 |
|
|
63 |
/**
|
|
64 |
* This class Opens an FTP input (or output) stream given a URL.
|
|
65 |
* It works as a one shot FTP transfer :
|
|
66 |
* <UL>
|
|
67 |
* <LI>Login</LI>
|
|
68 |
* <LI>Get (or Put) the file</LI>
|
|
69 |
* <LI>Disconnect</LI>
|
|
70 |
* </UL>
|
|
71 |
* You should not have to use it directly in most cases because all will be handled
|
|
72 |
* in a abstract layer. Here is an example of how to use the class :
|
|
73 |
* <P>
|
|
74 |
* <code>URL url = new URL("ftp://ftp.sun.com/pub/test.txt");<p>
|
|
75 |
* UrlConnection con = url.openConnection();<p>
|
|
76 |
* InputStream is = con.getInputStream();<p>
|
|
77 |
* ...<p>
|
|
78 |
* is.close();</code>
|
|
79 |
*
|
|
80 |
* @see sun.net.ftp.FtpClient
|
|
81 |
*/
|
|
82 |
public class FtpURLConnection extends URLConnection {
|
|
83 |
|
|
84 |
// In case we have to use proxies, we use HttpURLConnection
|
|
85 |
HttpURLConnection http = null;
|
|
86 |
private Proxy instProxy;
|
|
87 |
Proxy proxy = null;
|
|
88 |
|
|
89 |
InputStream is = null;
|
|
90 |
OutputStream os = null;
|
|
91 |
|
|
92 |
FtpClient ftp = null;
|
|
93 |
Permission permission;
|
|
94 |
|
|
95 |
String password;
|
|
96 |
String user;
|
|
97 |
|
|
98 |
String host;
|
|
99 |
String pathname;
|
|
100 |
String filename;
|
|
101 |
String fullpath;
|
|
102 |
int port;
|
|
103 |
static final int NONE = 0;
|
|
104 |
static final int ASCII = 1;
|
|
105 |
static final int BIN = 2;
|
|
106 |
static final int DIR = 3;
|
|
107 |
int type = NONE;
|
|
108 |
/* Redefine timeouts from java.net.URLConnection as we nee -1 to mean
|
|
109 |
* not set. This is to ensure backward compatibility.
|
|
110 |
*/
|
|
111 |
private int connectTimeout = -1;
|
|
112 |
private int readTimeout = -1;
|
|
113 |
|
|
114 |
/**
|
|
115 |
* For FTP URLs we need to have a special InputStream because we
|
|
116 |
* need to close 2 sockets after we're done with it :
|
|
117 |
* - The Data socket (for the file).
|
|
118 |
* - The command socket (FtpClient).
|
|
119 |
* Since that's the only class that needs to see that, it is an inner class.
|
|
120 |
*/
|
|
121 |
protected class FtpInputStream extends FilterInputStream {
|
|
122 |
FtpClient ftp;
|
|
123 |
FtpInputStream(FtpClient cl, InputStream fd) {
|
|
124 |
super(new BufferedInputStream(fd));
|
|
125 |
ftp = cl;
|
|
126 |
}
|
|
127 |
|
|
128 |
public void close() throws IOException {
|
|
129 |
super.close();
|
|
130 |
try {
|
|
131 |
if (ftp != null)
|
|
132 |
ftp.closeServer();
|
|
133 |
} catch (IOException ex) {
|
|
134 |
}
|
|
135 |
}
|
|
136 |
}
|
|
137 |
|
|
138 |
/**
|
|
139 |
* For FTP URLs we need to have a special OutputStream because we
|
|
140 |
* need to close 2 sockets after we're done with it :
|
|
141 |
* - The Data socket (for the file).
|
|
142 |
* - The command socket (FtpClient).
|
|
143 |
* Since that's the only class that needs to see that, it is an inner class.
|
|
144 |
*/
|
|
145 |
protected class FtpOutputStream extends FilterOutputStream {
|
|
146 |
FtpClient ftp;
|
|
147 |
FtpOutputStream(FtpClient cl, OutputStream fd) {
|
|
148 |
super(fd);
|
|
149 |
ftp = cl;
|
|
150 |
}
|
|
151 |
|
|
152 |
public void close() throws IOException {
|
|
153 |
super.close();
|
|
154 |
try {
|
|
155 |
if (ftp != null)
|
|
156 |
ftp.closeServer();
|
|
157 |
} catch (IOException ex) {
|
|
158 |
}
|
|
159 |
}
|
|
160 |
}
|
|
161 |
|
|
162 |
/**
|
|
163 |
* Creates an FtpURLConnection from a URL.
|
|
164 |
*
|
|
165 |
* @param url The <code>URL</code> to retrieve or store.
|
|
166 |
*/
|
|
167 |
public FtpURLConnection(URL url) {
|
|
168 |
this(url, null);
|
|
169 |
}
|
|
170 |
|
|
171 |
/**
|
|
172 |
* Same as FtpURLconnection(URL) with a per connection proxy specified
|
|
173 |
*/
|
|
174 |
FtpURLConnection(URL url, Proxy p) {
|
|
175 |
super(url);
|
|
176 |
instProxy = p;
|
|
177 |
host = url.getHost();
|
|
178 |
port = url.getPort();
|
|
179 |
String userInfo = url.getUserInfo();
|
|
180 |
|
|
181 |
if (userInfo != null) { // get the user and password
|
|
182 |
int delimiter = userInfo.indexOf(':');
|
|
183 |
if (delimiter == -1) {
|
|
184 |
user = ParseUtil.decode(userInfo);
|
|
185 |
password = null;
|
|
186 |
} else {
|
|
187 |
user = ParseUtil.decode(userInfo.substring(0, delimiter++));
|
|
188 |
password = ParseUtil.decode(userInfo.substring(delimiter));
|
|
189 |
}
|
|
190 |
}
|
|
191 |
}
|
|
192 |
|
|
193 |
private void setTimeouts() {
|
|
194 |
if (ftp != null) {
|
|
195 |
if (connectTimeout >= 0)
|
|
196 |
ftp.setConnectTimeout(connectTimeout);
|
|
197 |
if (readTimeout >= 0)
|
|
198 |
ftp.setReadTimeout(readTimeout);
|
|
199 |
}
|
|
200 |
}
|
|
201 |
|
|
202 |
/**
|
|
203 |
* Connects to the FTP server and logs in.
|
|
204 |
*
|
|
205 |
* @throws FtpLoginException if the login is unsuccessful
|
|
206 |
* @throws FtpProtocolException if an error occurs
|
|
207 |
* @throws UnknownHostException if trying to connect to an unknown host
|
|
208 |
*/
|
|
209 |
|
|
210 |
public synchronized void connect() throws IOException {
|
|
211 |
if (connected) {
|
|
212 |
return;
|
|
213 |
}
|
|
214 |
|
|
215 |
Proxy p = null;
|
|
216 |
if (instProxy == null) { // no per connection proxy specified
|
|
217 |
/**
|
|
218 |
* Do we have to use a proxie?
|
|
219 |
*/
|
|
220 |
ProxySelector sel = (ProxySelector)
|
|
221 |
java.security.AccessController.doPrivileged(
|
|
222 |
new java.security.PrivilegedAction() {
|
|
223 |
public Object run() {
|
|
224 |
return ProxySelector.getDefault();
|
|
225 |
}
|
|
226 |
});
|
|
227 |
if (sel != null) {
|
|
228 |
URI uri = sun.net.www.ParseUtil.toURI(url);
|
|
229 |
Iterator<Proxy> it = sel.select(uri).iterator();
|
|
230 |
while (it.hasNext()) {
|
|
231 |
p = it.next();
|
|
232 |
if (p == null || p == Proxy.NO_PROXY ||
|
|
233 |
p.type() == Proxy.Type.SOCKS)
|
|
234 |
break;
|
|
235 |
if (p.type() != Proxy.Type.HTTP ||
|
|
236 |
!(p.address() instanceof InetSocketAddress)) {
|
|
237 |
sel.connectFailed(uri, p.address(), new IOException("Wrong proxy type"));
|
|
238 |
continue;
|
|
239 |
}
|
|
240 |
// OK, we have an http proxy
|
|
241 |
InetSocketAddress paddr = (InetSocketAddress) p.address();
|
|
242 |
try {
|
|
243 |
http = new HttpURLConnection(url, p);
|
|
244 |
if (connectTimeout >= 0)
|
|
245 |
http.setConnectTimeout(connectTimeout);
|
|
246 |
if (readTimeout >= 0)
|
|
247 |
http.setReadTimeout(readTimeout);
|
|
248 |
http.connect();
|
|
249 |
connected = true;
|
|
250 |
return;
|
|
251 |
} catch (IOException ioe) {
|
|
252 |
sel.connectFailed(uri, paddr, ioe);
|
|
253 |
http = null;
|
|
254 |
}
|
|
255 |
}
|
|
256 |
}
|
|
257 |
} else { // per connection proxy specified
|
|
258 |
p = instProxy;
|
|
259 |
if (p.type() == Proxy.Type.HTTP) {
|
|
260 |
http = new HttpURLConnection(url, instProxy);
|
|
261 |
if (connectTimeout >= 0)
|
|
262 |
http.setConnectTimeout(connectTimeout);
|
|
263 |
if (readTimeout >= 0)
|
|
264 |
http.setReadTimeout(readTimeout);
|
|
265 |
http.connect();
|
|
266 |
connected = true;
|
|
267 |
return;
|
|
268 |
}
|
|
269 |
}
|
|
270 |
|
|
271 |
if (user == null) {
|
|
272 |
user = "anonymous";
|
|
273 |
String vers = java.security.AccessController.doPrivileged(
|
|
274 |
new GetPropertyAction("java.version"));
|
|
275 |
password = java.security.AccessController.doPrivileged(
|
|
276 |
new GetPropertyAction("ftp.protocol.user",
|
|
277 |
"Java" + vers +"@"));
|
|
278 |
}
|
|
279 |
try {
|
|
280 |
if (p != null)
|
|
281 |
ftp = new FtpClient(p);
|
|
282 |
else
|
|
283 |
ftp = new FtpClient();
|
|
284 |
setTimeouts();
|
|
285 |
if (port != -1)
|
|
286 |
ftp.openServer(host, port);
|
|
287 |
else
|
|
288 |
ftp.openServer(host);
|
|
289 |
} catch (UnknownHostException e) {
|
|
290 |
// Maybe do something smart here, like use a proxy like iftp.
|
|
291 |
// Just keep throwing for now.
|
|
292 |
throw e;
|
|
293 |
}
|
|
294 |
try {
|
|
295 |
ftp.login(user, password);
|
|
296 |
} catch (sun.net.ftp.FtpLoginException e) {
|
|
297 |
ftp.closeServer();
|
|
298 |
throw e;
|
|
299 |
}
|
|
300 |
connected = true;
|
|
301 |
}
|
|
302 |
|
|
303 |
|
|
304 |
/*
|
|
305 |
* Decodes the path as per the RFC-1738 specifications.
|
|
306 |
*/
|
|
307 |
private void decodePath(String path) {
|
|
308 |
int i = path.indexOf(";type=");
|
|
309 |
if (i >= 0) {
|
|
310 |
String s1 = path.substring(i+6, path.length());
|
|
311 |
if ("i".equalsIgnoreCase(s1))
|
|
312 |
type = BIN;
|
|
313 |
if ("a".equalsIgnoreCase(s1))
|
|
314 |
type = ASCII;
|
|
315 |
if ("d".equalsIgnoreCase(s1))
|
|
316 |
type = DIR;
|
|
317 |
path = path.substring(0, i);
|
|
318 |
}
|
|
319 |
if (path != null && path.length() > 1 &&
|
|
320 |
path.charAt(0) == '/')
|
|
321 |
path = path.substring(1);
|
|
322 |
if (path == null || path.length() == 0)
|
|
323 |
path = "./";
|
|
324 |
if (!path.endsWith("/")) {
|
|
325 |
i = path.lastIndexOf('/');
|
|
326 |
if (i > 0) {
|
|
327 |
filename = path.substring(i+1, path.length());
|
|
328 |
filename = ParseUtil.decode(filename);
|
|
329 |
pathname = path.substring(0, i);
|
|
330 |
} else {
|
|
331 |
filename = ParseUtil.decode(path);
|
|
332 |
pathname = null;
|
|
333 |
}
|
|
334 |
} else {
|
|
335 |
pathname = path.substring(0, path.length() - 1);
|
|
336 |
filename = null;
|
|
337 |
}
|
|
338 |
if (pathname != null)
|
|
339 |
fullpath = pathname + "/" + (filename != null ? filename : "");
|
|
340 |
else
|
|
341 |
fullpath = filename;
|
|
342 |
}
|
|
343 |
|
|
344 |
/*
|
|
345 |
* As part of RFC-1738 it is specified that the path should be
|
|
346 |
* interpreted as a series of FTP CWD commands.
|
|
347 |
* This is because, '/' is not necessarly the directory delimiter
|
|
348 |
* on every systems.
|
|
349 |
*/
|
|
350 |
|
|
351 |
private void cd(String path) throws IOException {
|
|
352 |
if (path == null || "".equals(path))
|
|
353 |
return;
|
|
354 |
if (path.indexOf('/') == -1) {
|
|
355 |
ftp.cd(ParseUtil.decode(path));
|
|
356 |
return;
|
|
357 |
}
|
|
358 |
|
|
359 |
StringTokenizer token = new StringTokenizer(path,"/");
|
|
360 |
while (token.hasMoreTokens())
|
|
361 |
ftp.cd(ParseUtil.decode(token.nextToken()));
|
|
362 |
}
|
|
363 |
|
|
364 |
/**
|
|
365 |
* Get the InputStream to retreive the remote file. It will issue the
|
|
366 |
* "get" (or "dir") command to the ftp server.
|
|
367 |
*
|
|
368 |
* @return the <code>InputStream</code> to the connection.
|
|
369 |
*
|
|
370 |
* @throws IOException if already opened for output
|
|
371 |
* @throws FtpProtocolException if errors occur during the transfert.
|
|
372 |
*/
|
|
373 |
public InputStream getInputStream() throws IOException {
|
|
374 |
if (!connected) {
|
|
375 |
connect();
|
|
376 |
}
|
|
377 |
|
|
378 |
if (http != null)
|
|
379 |
return http.getInputStream();
|
|
380 |
|
|
381 |
if (os != null)
|
|
382 |
throw new IOException("Already opened for output");
|
|
383 |
|
|
384 |
if (is != null) {
|
|
385 |
return is;
|
|
386 |
}
|
|
387 |
|
|
388 |
MessageHeader msgh = new MessageHeader();
|
|
389 |
|
|
390 |
try {
|
|
391 |
decodePath(url.getPath());
|
|
392 |
if (filename == null || type == DIR) {
|
|
393 |
ftp.ascii();
|
|
394 |
cd(pathname);
|
|
395 |
if (filename == null)
|
|
396 |
is = new FtpInputStream(ftp, ftp.list());
|
|
397 |
else
|
|
398 |
is = new FtpInputStream(ftp, ftp.nameList(filename));
|
|
399 |
} else {
|
|
400 |
if (type == ASCII)
|
|
401 |
ftp.ascii();
|
|
402 |
else
|
|
403 |
ftp.binary();
|
|
404 |
cd(pathname);
|
|
405 |
is = new FtpInputStream(ftp, ftp.get(filename));
|
|
406 |
}
|
|
407 |
|
|
408 |
/* Try to get the size of the file in bytes. If that is
|
|
409 |
successful, then create a MeteredStream. */
|
|
410 |
try {
|
|
411 |
String response = ftp.getResponseString();
|
|
412 |
int offset;
|
|
413 |
|
|
414 |
if ((offset = response.indexOf(" bytes)")) != -1) {
|
|
415 |
int i = offset;
|
|
416 |
int c;
|
|
417 |
|
|
418 |
while (--i >= 0 && ((c = response.charAt(i)) >= '0'
|
|
419 |
&& c <= '9'))
|
|
420 |
;
|
|
421 |
long l = Long.parseLong(response.substring(i + 1, offset));
|
|
422 |
msgh.add("content-length", Long.toString(l));
|
|
423 |
if (l > 0) {
|
|
424 |
|
|
425 |
// Wrap input stream with MeteredStream to ensure read() will always return -1
|
|
426 |
// at expected length.
|
|
427 |
|
|
428 |
// Check if URL should be metered
|
|
429 |
boolean meteredInput = ProgressMonitor.getDefault().shouldMeterInput(url, "GET");
|
|
430 |
ProgressSource pi = null;
|
|
431 |
|
|
432 |
if (meteredInput) {
|
|
433 |
pi = new ProgressSource(url, "GET", l);
|
|
434 |
pi.beginTracking();
|
|
435 |
}
|
|
436 |
|
|
437 |
is = new MeteredStream(is, pi, l);
|
|
438 |
}
|
|
439 |
}
|
|
440 |
} catch (Exception e) {
|
|
441 |
e.printStackTrace();
|
|
442 |
/* do nothing, since all we were doing was trying to
|
|
443 |
get the size in bytes of the file */
|
|
444 |
}
|
|
445 |
|
|
446 |
String type = guessContentTypeFromName(fullpath);
|
|
447 |
if (type == null && is.markSupported()) {
|
|
448 |
type = guessContentTypeFromStream(is);
|
|
449 |
}
|
|
450 |
if (type != null) {
|
|
451 |
msgh.add("content-type", type);
|
|
452 |
}
|
|
453 |
} catch (FileNotFoundException e) {
|
|
454 |
try {
|
|
455 |
cd(fullpath);
|
|
456 |
/* if that worked, then make a directory listing
|
|
457 |
and build an html stream with all the files in
|
|
458 |
the directory */
|
|
459 |
ftp.ascii();
|
|
460 |
|
|
461 |
is = new FtpInputStream(ftp, ftp.list());
|
|
462 |
msgh.add("content-type", "text/plain");
|
|
463 |
} catch (IOException ex) {
|
|
464 |
throw new FileNotFoundException(fullpath);
|
|
465 |
}
|
|
466 |
}
|
|
467 |
setProperties(msgh);
|
|
468 |
return is;
|
|
469 |
}
|
|
470 |
|
|
471 |
/**
|
|
472 |
* Get the OutputStream to store the remote file. It will issue the
|
|
473 |
* "put" command to the ftp server.
|
|
474 |
*
|
|
475 |
* @return the <code>OutputStream</code> to the connection.
|
|
476 |
*
|
|
477 |
* @throws IOException if already opened for input or the URL
|
|
478 |
* points to a directory
|
|
479 |
* @throws FtpProtocolException if errors occur during the transfert.
|
|
480 |
*/
|
|
481 |
public OutputStream getOutputStream() throws IOException {
|
|
482 |
if (!connected) {
|
|
483 |
connect();
|
|
484 |
}
|
|
485 |
|
|
486 |
if (http != null)
|
|
487 |
return http.getOutputStream();
|
|
488 |
|
|
489 |
if (is != null)
|
|
490 |
throw new IOException("Already opened for input");
|
|
491 |
|
|
492 |
if (os != null) {
|
|
493 |
return os;
|
|
494 |
}
|
|
495 |
|
|
496 |
decodePath(url.getPath());
|
|
497 |
if (filename == null || filename.length() == 0)
|
|
498 |
throw new IOException("illegal filename for a PUT");
|
|
499 |
if (pathname != null)
|
|
500 |
cd(pathname);
|
|
501 |
if (type == ASCII)
|
|
502 |
ftp.ascii();
|
|
503 |
else
|
|
504 |
ftp.binary();
|
|
505 |
os = new FtpOutputStream(ftp, ftp.put(filename));
|
|
506 |
return os;
|
|
507 |
}
|
|
508 |
|
|
509 |
String guessContentTypeFromFilename(String fname) {
|
|
510 |
return guessContentTypeFromName(fname);
|
|
511 |
}
|
|
512 |
|
|
513 |
/**
|
|
514 |
* Gets the <code>Permission</code> associated with the host & port.
|
|
515 |
*
|
|
516 |
* @return The <code>Permission</code> object.
|
|
517 |
*/
|
|
518 |
public Permission getPermission() {
|
|
519 |
if (permission == null) {
|
|
520 |
int port = url.getPort();
|
|
521 |
port = port < 0 ? FtpClient.FTP_PORT : port;
|
|
522 |
String host = this.host + ":" + port;
|
|
523 |
permission = new SocketPermission(host, "connect");
|
|
524 |
}
|
|
525 |
return permission;
|
|
526 |
}
|
|
527 |
|
|
528 |
/**
|
|
529 |
* Sets the general request property. If a property with the key already
|
|
530 |
* exists, overwrite its value with the new value.
|
|
531 |
*
|
|
532 |
* @param key the keyword by which the request is known
|
|
533 |
* (e.g., "<code>accept</code>").
|
|
534 |
* @param value the value associated with it.
|
|
535 |
* @throws IllegalStateException if already connected
|
|
536 |
* @see #getRequestProperty(java.lang.String)
|
|
537 |
*/
|
|
538 |
public void setRequestProperty(String key, String value) {
|
|
539 |
super.setRequestProperty (key, value);
|
|
540 |
if ("type".equals (key)) {
|
|
541 |
if ("i".equalsIgnoreCase(value))
|
|
542 |
type = BIN;
|
|
543 |
else if ("a".equalsIgnoreCase(value))
|
|
544 |
type = ASCII;
|
|
545 |
else
|
|
546 |
if ("d".equalsIgnoreCase(value))
|
|
547 |
type = DIR;
|
|
548 |
else
|
|
549 |
throw new IllegalArgumentException(
|
|
550 |
"Value of '" + key +
|
|
551 |
"' request property was '" + value +
|
|
552 |
"' when it must be either 'i', 'a' or 'd'");
|
|
553 |
}
|
|
554 |
}
|
|
555 |
|
|
556 |
/**
|
|
557 |
* Returns the value of the named general request property for this
|
|
558 |
* connection.
|
|
559 |
*
|
|
560 |
* @param key the keyword by which the request is known (e.g., "accept").
|
|
561 |
* @return the value of the named general request property for this
|
|
562 |
* connection.
|
|
563 |
* @throws IllegalStateException if already connected
|
|
564 |
* @see #setRequestProperty(java.lang.String, java.lang.String)
|
|
565 |
*/
|
|
566 |
public String getRequestProperty(String key) {
|
|
567 |
String value = super.getRequestProperty (key);
|
|
568 |
|
|
569 |
if (value == null) {
|
|
570 |
if ("type".equals (key))
|
|
571 |
value = (type == ASCII ? "a" : type == DIR ? "d" : "i");
|
|
572 |
}
|
|
573 |
|
|
574 |
return value;
|
|
575 |
}
|
|
576 |
|
|
577 |
public void setConnectTimeout(int timeout) {
|
|
578 |
if (timeout < 0)
|
|
579 |
throw new IllegalArgumentException("timeouts can't be negative");
|
|
580 |
connectTimeout = timeout;
|
|
581 |
}
|
|
582 |
|
|
583 |
public int getConnectTimeout() {
|
|
584 |
return (connectTimeout < 0 ? 0 : connectTimeout);
|
|
585 |
}
|
|
586 |
|
|
587 |
public void setReadTimeout(int timeout) {
|
|
588 |
if (timeout < 0)
|
|
589 |
throw new IllegalArgumentException("timeouts can't be negative");
|
|
590 |
readTimeout = timeout;
|
|
591 |
}
|
|
592 |
|
|
593 |
public int getReadTimeout() {
|
|
594 |
return readTimeout < 0 ? 0 : readTimeout;
|
|
595 |
}
|
|
596 |
}
|