1 // Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
8 import org.ibex.util.*;
9 import org.bouncycastle.util.encoders.Base64;
10 import org.bouncycastle.crypto.digests.*;
13 * This object encapsulates a *single* HTTP connection. Multiple requests may be pipelined over a connection (thread-safe),
14 * although any IOException encountered in a request will invalidate all later requests.
19 // Public Methods ////////////////////////////////////////////////////////////////////////////////////////
21 public HTTP(String url) { this(url, false); }
22 public HTTP(String url, boolean skipResolveCheck) { originalUrl = url; this.skipResolveCheck = skipResolveCheck; }
24 /** Performs an HTTP GET request */
25 public InputStream GET() throws IOException { return makeRequest(null, null); }
27 /** Performs an HTTP POST request; content is additional headers, blank line, and body */
28 public InputStream POST(String contentType, String content) throws IOException { return makeRequest(contentType, content); }
30 public static class HTTPException extends IOException { public HTTPException(String s) { super(s); } }
33 // Statics ///////////////////////////////////////////////////////////////////////////////////////////////
35 static Hash resolvedHosts = new Hash(); ///< cache for resolveAndCheckIfFirewalled()
36 private static Hash authCache = new Hash(); ///< cache of userInfo strings, keyed on originalUrl
39 // Instance Data ///////////////////////////////////////////////////////////////////////////////////////////////
41 final String originalUrl; ///< the URL as passed to the original constructor; this is never changed
42 URL url = null; ///< the URL to connect to; this is munged when the url is parsed */
43 String host = null; ///< the host to connect to
44 int port = -1; ///< the port to connect on
45 boolean ssl = false; ///< true if SSL (HTTPS) should be used
46 String path = null; ///< the path (URI) to retrieve on the server
47 Socket sock = null; ///< the socket
48 InputStream in = null; ///< the socket's inputstream
49 String userInfo = null; ///< the username and password portions of the URL
50 boolean firstRequest = true; ///< true iff this is the first request to be made on this socket
51 boolean skipResolveCheck = false; ///< allowed to skip the resolve check when downloading PAC script
52 boolean proxied = false; ///< true iff we're using a proxy
54 /** this is null if the current request is the first request on
55 * this HTTP connection; otherwise it is a Semaphore which will be
56 * released once the request ahead of us has recieved its response
58 Semaphore okToRecieve = null;
61 * This method isn't synchronized; however, only one thread can be in the inner synchronized block at a time, and the rest of
62 * the method is protected by in-order one-at-a-time semaphore lock-steps
64 private InputStream makeRequest(String contentType, String content) throws IOException {
66 // Step 1: send the request and establish a semaphore to stop any requests that pipeline after us
67 Semaphore blockOn = null;
68 Semaphore releaseMe = null;
72 sendRequest(contentType, content);
73 } catch (IOException e) {
77 blockOn = okToRecieve;
78 releaseMe = okToRecieve = new Semaphore();
81 // Step 2: wait for requests ahead of us to complete, then read the reply off the stream
82 boolean doRelease = true;
84 if (blockOn != null) blockOn.block();
86 // previous call wrecked the socket connection, but we already sent our request, so we can't just retry --
87 // this could cause the server to receive the request twice, which could be bad (think of the case where the
88 // server call causes Amazon.com to ship you an item with one-click purchasing).
90 throw new HTTPException("a previous pipelined call messed up the socket");
92 Hashtable h = in == null ? null : parseHeaders(in);
94 if (firstRequest) throw new HTTPException("server closed the socket with no response");
95 // sometimes the server chooses to close the stream between requests
98 return makeRequest(contentType, content);
101 String reply = h.get("STATUSLINE").toString();
103 if (reply.startsWith("407") || reply.startsWith("401")) {
105 if (reply.startsWith("407")) doProxyAuth(h, content == null ? "GET" : "POST");
106 else doWebAuth(h, content == null ? "GET" : "POST");
108 if (h.get("HTTP").equals("1.0") && h.get("content-length") == null) {
109 if (Log.on) Log.info(this, "proxy returned an HTTP/1.0 reply with no content-length...");
112 int cl = h.get("content-length") == null ? -1 : Integer.parseInt(h.get("content-length").toString());
113 new HTTPInputStream(in, cl, releaseMe).close();
116 return makeRequest(contentType, content);
118 } else if (reply.startsWith("2")) {
119 if (h.get("HTTP").equals("1.0") && h.get("content-length") == null)
120 throw new HTTPException("Ibex does not support HTTP/1.0 servers which fail to return the Content-Length header");
121 int cl = h.get("content-length") == null ? -1 : Integer.parseInt(h.get("content-length").toString());
122 InputStream ret = new HTTPInputStream(in, cl, releaseMe);
123 if ("gzip".equals(h.get("content-encoding"))) ret = new java.util.zip.GZIPInputStream(ret);
128 throw new HTTPException("HTTP Error: " + reply);
132 } catch (IOException e) { reset(); throw e;
133 } finally { if (doRelease) releaseMe.release();
138 // Safeguarded DNS Resolver ///////////////////////////////////////////////////////////////////////////
141 * resolves the hostname and returns it as a string in the form "x.y.z.w"
142 * @throws HTTPException if the host falls within a firewalled netblock
144 private void resolveAndCheckIfFirewalled(String host) throws HTTPException {
147 if (resolvedHosts.get(host) != null) return;
149 // if all scripts are trustworthy (local FS), continue
150 if (Main.originAddr == null) return;
154 InetAddress addr = InetAddress.getByName(host);
155 byte[] quadbyte = addr.getAddress();
156 if ((quadbyte[0] == 10 ||
157 (quadbyte[0] == 192 && quadbyte[1] == 168) ||
158 (quadbyte[0] == 172 && (quadbyte[1] & 0xF0) == 16)) && !addr.equals(Main.originAddr))
159 throw new HTTPException("security violation: " + host + " [" + addr.getHostAddress() +
160 "] is in a firewalled netblock");
162 } catch (UnknownHostException uhe) { }
164 if (Platform.detectProxy() == null)
165 throw new HTTPException("could not resolve hostname \"" + host + "\" and no proxy configured");
169 // Methods to attempt socket creation /////////////////////////////////////////////////////////////////
171 private Socket getSocket(String host, int port, boolean ssl, boolean negotiate) throws IOException {
172 Socket ret = ssl ? new SSL(host, port, negotiate) : new Socket(java.net.InetAddress.getByName(host), port);
173 ret.setTcpNoDelay(true);
177 /** Attempts a direct connection */
178 private Socket attemptDirect() {
180 if (Log.verbose) Log.info(this, "attempting to create unproxied socket to " +
181 host + ":" + port + (ssl ? " [ssl]" : ""));
182 return getSocket(host, port, ssl, true);
183 } catch (IOException e) {
184 if (Log.on) Log.info(this, "exception in attemptDirect(): " + e);
189 /** Attempts to use an HTTP proxy, employing the CONNECT method if HTTPS is requested */
190 private Socket attemptHttpProxy(String proxyHost, int proxyPort) {
192 if (Log.verbose) Log.info(this, "attempting to create HTTP proxied socket using proxy " + proxyHost + ":" + proxyPort);
193 Socket sock = getSocket(proxyHost, proxyPort, ssl, false);
196 if (!path.startsWith("http://")) path = "http://" + host + ":" + port + path;
200 PrintWriter pw = new PrintWriter(new OutputStreamWriter(sock.getOutputStream()));
201 BufferedReader br = new BufferedReader(new InputStreamReader(sock.getInputStream()));
202 pw.print("CONNECT " + host + ":" + port + " HTTP/1.1\r\n\r\n");
204 String s = br.readLine();
205 if (s.charAt(9) != '2') throw new HTTPException("proxy refused CONNECT method: \"" + s + "\"");
206 while (br.readLine().length() > 0) { };
207 ((SSL)sock).negotiate();
210 } catch (IOException e) {
211 if (Log.on) Log.info(this, "exception in attemptHttpProxy(): " + e);
217 * Implements SOCKSv4 with v4a DNS extension
218 * @see http://www.socks.nec.com/protocol/socks4.protocol
219 * @see http://www.socks.nec.com/protocol/socks4a.protocol
221 private Socket attemptSocksProxy(String proxyHost, int proxyPort) {
223 // even if host is already a "x.y.z.w" string, we use this to parse it into bytes
224 InetAddress addr = null;
225 try { addr = InetAddress.getByName(host); } catch (Exception e) { }
227 if (Log.verbose) Log.info(this, "attempting to create SOCKSv4" + (addr == null ? "" : "a") +
228 " proxied socket using proxy " + proxyHost + ":" + proxyPort);
231 Socket sock = getSocket(proxyHost, proxyPort, ssl, false);
233 DataOutputStream dos = new DataOutputStream(sock.getOutputStream());
234 dos.writeByte(0x04); // SOCKSv4(a)
235 dos.writeByte(0x01); // CONNECT
236 dos.writeShort(port & 0xffff); // port
237 if (addr == null) dos.writeInt(0x00000001); // bogus IP
238 else dos.write(addr.getAddress()); // actual IP
239 dos.writeByte(0x00); // no userid
241 PrintWriter pw = new PrintWriter(new OutputStreamWriter(dos));
244 dos.writeByte(0x00); // hostname null terminator
248 DataInputStream dis = new DataInputStream(sock.getInputStream());
249 dis.readByte(); // reply version
250 byte success = dis.readByte(); // success/fail
251 dis.skip(6); // ip/port
253 if ((int)(success & 0xff) == 90) {
254 if (ssl) ((SSL)sock).negotiate();
257 if (Log.on) Log.info(this, "SOCKS server denied access, code " + (success & 0xff));
260 } catch (IOException e) {
261 if (Log.on) Log.info(this, "exception in attemptSocksProxy(): " + e);
266 /** executes the PAC script and dispatches a call to one of the other attempt methods based on the result */
267 private Socket attemptPAC(org.ibex.js.JS pacFunc) {
268 if (Log.verbose) Log.info(this, "evaluating PAC script");
271 Object obj = pacFunc.call(url.toString(), url.getHost(), null, null, 2);
272 if (Log.verbose) Log.info(this, " PAC script returned \"" + obj + "\"");
273 pac = obj.toString();
274 } catch (Throwable e) {
275 if (Log.on) Log.info(this, "PAC script threw exception " + e);
279 StringTokenizer st = new StringTokenizer(pac, ";", false);
280 while (st.hasMoreTokens()) {
281 String token = st.nextToken().trim();
282 if (Log.verbose) Log.info(this, " trying \"" + token + "\"...");
285 if (token.startsWith("DIRECT"))
286 ret = attemptDirect();
287 else if (token.startsWith("PROXY"))
288 ret = attemptHttpProxy(token.substring(token.indexOf(' ') + 1, token.indexOf(':')),
289 Integer.parseInt(token.substring(token.indexOf(':') + 1)));
290 else if (token.startsWith("SOCKS"))
291 ret = attemptSocksProxy(token.substring(token.indexOf(' ') + 1, token.indexOf(':')),
292 Integer.parseInt(token.substring(token.indexOf(':') + 1)));
293 if (ret != null) return ret;
294 } catch (Throwable e) {
295 if (Log.on) Log.info(this, "attempt at \"" + token + "\" failed due to " + e + "; trying next token");
298 if (Log.on) Log.info(this, "all PAC results exhausted");
303 // Everything Else ////////////////////////////////////////////////////////////////////////////
305 private synchronized void connect() throws IOException {
306 if (originalUrl.equals("stdio:")) { in = new BufferedInputStream(System.in); return; }
308 if (in == null) in = new BufferedInputStream(sock.getInputStream());
311 // grab the userinfo; gcj doesn't have java.net.URL.getUserInfo()
312 String url = originalUrl;
313 userInfo = url.substring(url.indexOf("://") + 3);
314 userInfo = userInfo.indexOf('/') == -1 ? userInfo : userInfo.substring(0, userInfo.indexOf('/'));
315 if (userInfo.indexOf('@') != -1) {
316 userInfo = userInfo.substring(0, userInfo.indexOf('@'));
317 url = url.substring(0, url.indexOf("://") + 3) + url.substring(url.indexOf('@') + 1);
322 if (url.startsWith("https:")) {
323 this.url = new URL("http" + url.substring(5));
325 } else if (!url.startsWith("http:")) {
326 throw new MalformedURLException("HTTP only supports http/https urls");
328 this.url = new URL(url);
330 if (!skipResolveCheck) resolveAndCheckIfFirewalled(this.url.getHost());
331 port = this.url.getPort();
332 path = this.url.getFile();
333 if (port == -1) port = ssl ? 443 : 80;
334 host = this.url.getHost();
335 if (Log.verbose) Log.info(this, "creating HTTP object for connection to " + host + ":" + port);
337 Proxy pi = Platform.detectProxy();
340 for(int i=0; i<pi.excluded.length; i++) if (host.equals(pi.excluded[i])) break OUTER;
341 if (sock == null && pi.proxyAutoConfigFunction != null) sock = attemptPAC(pi.proxyAutoConfigFunction);
342 if (sock == null && ssl && pi.httpsProxyHost != null) sock = attemptHttpProxy(pi.httpsProxyHost,pi.httpsProxyPort);
343 if (sock == null && pi.httpProxyHost != null) sock = attemptHttpProxy(pi.httpProxyHost, pi.httpProxyPort);
344 if (sock == null && pi.socksProxyHost != null) sock = attemptSocksProxy(pi.socksProxyHost, pi.socksProxyPort);
347 proxied = sock != null;
348 if (sock == null) sock = attemptDirect();
349 if (sock == null) throw new HTTPException("unable to contact host " + host);
350 if (in == null) in = new BufferedInputStream(sock.getInputStream());
353 private void sendRequest(String contentType, String content) throws IOException {
354 PrintWriter pw = new PrintWriter(new OutputStreamWriter(originalUrl.equals("stdio:") ?
355 System.out : sock.getOutputStream()));
356 if (content != null) {
357 pw.print("POST " + path + " HTTP/1.1\r\n");
358 int contentLength = content.substring(0, 2).equals("\r\n") ?
359 content.length() - 2 :
360 (content.length() - content.indexOf("\r\n\r\n") - 4);
361 pw.print("Content-Length: " + contentLength + "\r\n");
362 if (contentType != null) pw.print("Content-Type: " + contentType + "\r\n");
364 pw.print("GET " + path + " HTTP/1.1\r\n");
367 pw.print("User-Agent: Ibex\r\n");
368 pw.print("Accept-encoding: gzip\r\n");
369 pw.print("Host: " + (host + (port == 80 ? "" : (":" + port))) + "\r\n");
370 if (proxied) pw.print("X-RequestOrigin: " + Main.originHost + "\r\n");
372 if (Proxy.Authorization.authorization != null) pw.print("Proxy-Authorization: "+Proxy.Authorization.authorization2+"\r\n");
373 if (authCache.get(originalUrl) != null) pw.print("Authorization: " + authCache.get(originalUrl) + "\r\n");
375 pw.print(content == null ? "\r\n" : content);
380 private void doWebAuth(Hashtable h0, String method) throws IOException {
381 if (userInfo == null) throw new HTTPException("web server demanded username/password, but none were supplied");
382 Hashtable h = parseAuthenticationChallenge(h0.get("www-authenticate").toString());
384 if (h.get("AUTHTYPE").equals("Basic")) {
385 if (authCache.get(originalUrl) != null) throw new HTTPException("username/password rejected");
386 authCache.put(originalUrl, "Basic " + new String(Base64.encode(userInfo.getBytes("US-ASCII"))));
388 } else if (h.get("AUTHTYPE").equals("Digest")) {
389 if (authCache.get(originalUrl) != null && !"true".equals(h.get("stale")))
390 throw new HTTPException("username/password rejected");
392 if (path2.startsWith("http://") || path2.startsWith("https://")) {
393 path2 = path2.substring(path2.indexOf("://") + 3);
394 path2 = path2.substring(path2.indexOf('/'));
396 String A1 = userInfo.substring(0, userInfo.indexOf(':')) + ":" + h.get("realm") + ":" +
397 userInfo.substring(userInfo.indexOf(':') + 1);
398 String A2 = method + ":" + path2;
399 authCache.put(originalUrl,
401 "username=\"" + userInfo.substring(0, userInfo.indexOf(':')) + "\", " +
402 "realm=\"" + h.get("realm") + "\", " +
403 "nonce=\"" + h.get("nonce") + "\", " +
404 "uri=\"" + path2 + "\", " +
405 (h.get("opaque") == null ? "" : ("opaque=\"" + h.get("opaque") + "\", ")) +
406 "response=\"" + H(H(A1) + ":" + h.get("nonce") + ":" + H(A2)) + "\", " +
411 throw new HTTPException("unknown authentication type: " + h.get("AUTHTYPE"));
415 private void doProxyAuth(Hashtable h0, String method) throws IOException {
416 if (Log.on) Log.info(this, "Proxy AuthChallenge: " + h0.get("proxy-authenticate"));
417 Hashtable h = parseAuthenticationChallenge(h0.get("proxy-authenticate").toString());
418 String style = h.get("AUTHTYPE").toString();
419 String realm = (String)h.get("realm");
421 if (style.equals("NTLM") && Proxy.Authorization.authorization2 == null) {
422 Log.info(this, "Proxy identified itself as NTLM, sending Type 1 packet");
423 Proxy.Authorization.authorization2 = "NTLM " + Base64.encode(Proxy.NTLM.type1);
427 if (!realm.equals("Digest") || Proxy.Authorization.authorization2 == null || !"true".equals(h.get("stale")))
428 Proxy.Authorization.getPassword(realm, style, sock.getInetAddress().getHostAddress(),
429 Proxy.Authorization.authorization);
431 if (style.equals("Basic")) {
432 Proxy.Authorization.authorization2 =
433 "Basic " + new String(Base64.encode(Proxy.Authorization.authorization.getBytes("US-ASCII")));
435 } else if (style.equals("Digest")) {
436 String A1 = Proxy.Authorization.authorization.substring(0, userInfo.indexOf(':')) + ":" + h.get("realm") + ":" +
437 Proxy.Authorization.authorization.substring(Proxy.Authorization.authorization.indexOf(':') + 1);
438 String A2 = method + ":" + path;
439 Proxy.Authorization.authorization2 =
441 "username=\"" + Proxy.Authorization.authorization.substring(0, Proxy.Authorization.authorization.indexOf(':')) +
443 "realm=\"" + h.get("realm") + "\", " +
444 "nonce=\"" + h.get("nonce") + "\", " +
445 "uri=\"" + path + "\", " +
446 (h.get("opaque") == null ? "" : ("opaque=\"" + h.get("opaque") + "\", ")) +
447 "response=\"" + H(H(A1) + ":" + h.get("nonce") + ":" + H(A2)) + "\", " +
450 } else if (style.equals("NTLM")) {
451 Log.info(this, "Proxy identified itself as NTLM, got Type 2 packet");
452 byte[] type2 = Base64.decode(((String)h0.get("proxy-authenticate")).substring(5).trim());
453 for(int i=0; i<type2.length; i += 4) {
455 if (i<type2.length) log += Integer.toString(type2[i] & 0xff, 16) + " ";
456 if (i+1<type2.length) log += Integer.toString(type2[i+1] & 0xff, 16) + " ";
457 if (i+2<type2.length) log += Integer.toString(type2[i+2] & 0xff, 16) + " ";
458 if (i+3<type2.length) log += Integer.toString(type2[i+3] & 0xff, 16) + " ";
461 // FEATURE: need to keep the connection open between type1 and type3
462 // FEATURE: finish this
463 //byte[] type3 = Proxy.NTLM.getResponse(
464 //Proxy.Authorization.authorization2 = "NTLM " + Base64.encode(type3));
469 // HTTPInputStream ///////////////////////////////////////////////////////////////////////////////////
471 /** An input stream that represents a subset of a longer input stream. Supports HTTP chunking as well */
472 public class HTTPInputStream extends FilterInputStream implements KnownLength {
474 private int length = 0; ///< if chunking, numbytes left in this subset; else the remainder of the chunk
475 private Semaphore releaseMe = null; ///< this semaphore will be released when the stream is closed
476 boolean chunkedDone = false; ///< indicates that we have encountered the zero-length terminator chunk
477 boolean firstChunk = true; ///< if we're on the first chunk, we don't pre-read a CRLF
478 private int contentLength = 0; ///< the length of the entire content body; -1 if chunked
480 HTTPInputStream(InputStream in, int length, Semaphore releaseMe) throws IOException {
482 this.releaseMe = releaseMe;
483 this.contentLength = length;
484 this.length = length == -1 ? 0 : length;
487 public int getLength() { return contentLength; }
488 public boolean markSupported() { return false; }
489 public int read(byte[] b) throws IOException { return read(b, 0, b.length); }
490 public long skip(long n) throws IOException { return read(null, -1, (int)n); }
491 public int available() throws IOException {
492 if (contentLength == -1) return java.lang.Math.min(super.available(), length);
493 return super.available();
496 public int read() throws IOException {
497 byte[] b = new byte[1];
498 int ret = read(b, 0, 1);
499 return ret == -1 ? -1 : b[0] & 0xff;
502 private void readChunk() throws IOException {
503 if (chunkedDone) return;
504 if (!firstChunk) super.skip(2); // CRLF
506 String chunkLen = "";
508 int i = super.read();
509 if (i == -1) throw new HTTPException("encountered end of stream while reading chunk length");
511 // FEATURE: handle chunking extensions
519 length = Integer.parseInt(chunkLen.trim(), 16);
520 if (length == 0) chunkedDone = true;
523 public int read(byte[] b, int off, int len) throws IOException {
524 boolean good = false;
526 if (length == 0 && contentLength == -1) {
528 if (chunkedDone) { good = true; return -1; }
530 if (length == 0) { good = true; return -1; }
532 if (len > length) len = length;
533 int ret = b == null ? (int)super.skip(len) : super.read(b, off, len);
544 public void close() throws IOException {
545 if (contentLength == -1) {
546 while(!chunkedDone) {
547 if (length != 0) skip(length);
552 if (length != 0) skip(length);
554 if (releaseMe != null) releaseMe.release();
565 // Misc Helpers ///////////////////////////////////////////////////////////////////////////////////
567 /** reads a set of HTTP headers off of the input stream, returning null if the stream is already at its end */
568 private Hashtable parseHeaders(InputStream in) throws IOException {
569 Hashtable ret = new Hashtable();
571 // we can't use a BufferedReader directly on the input stream, since it will buffer past the end of the headers
572 byte[] buf = new byte[4096];
575 int read = in.read();
576 if (read == -1 && buflen == 0) return null;
577 if (read == -1) throw new HTTPException("stream closed while reading headers");
578 buf[buflen++] = (byte)read;
579 if (buflen >= 4 && buf[buflen - 4] == '\r' && buf[buflen - 3] == '\n' &&
580 buf[buflen - 2] == '\r' && buf[buflen - 1] == '\n')
582 if (buflen == buf.length) {
583 byte[] newbuf = new byte[buf.length * 2];
584 System.arraycopy(buf, 0, newbuf, 0, buflen);
589 BufferedReader br = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(buf, 0, buflen)));
590 String s = br.readLine();
591 if (!s.startsWith("HTTP/")) throw new HTTPException("Expected reply to start with \"HTTP/\", got: " + s);
592 ret.put("STATUSLINE", s.substring(s.indexOf(' ') + 1));
593 ret.put("HTTP", s.substring(5, s.indexOf(' ')));
595 while((s = br.readLine()) != null && s.length() > 0) {
596 String front = s.substring(0, s.indexOf(':')).toLowerCase();
597 String back = s.substring(s.indexOf(':') + 1).trim();
598 // ugly hack: we never replace a Digest-auth with a Basic-auth (proxy + www)
599 if (front.endsWith("-authenticate") && ret.get(front) != null && !back.equals("Digest")) continue;
600 ret.put(front, back);
605 private Hashtable parseAuthenticationChallenge(String s) {
606 Hashtable ret = new Hashtable();
609 ret.put("AUTHTYPE", s.substring(0, s.indexOf(' ')));
610 s = s.substring(s.indexOf(' ')).trim();
612 while (s.length() > 0) {
614 String key = s.substring(0, s.indexOf('='));
615 s = s.substring(s.indexOf('=') + 1);
616 if (s.charAt(0) == '\"') {
618 val = s.substring(0, s.indexOf('\"'));
619 s = s.substring(s.indexOf('\"') + 1);
621 val = s.indexOf(',') == -1 ? s : s.substring(0, s.indexOf(','));
622 s = s.indexOf(',') == -1 ? "" : s.substring(s.indexOf(',') + 1);
624 if (s.length() > 0 && s.charAt(0) == ',') s = s.substring(1);
631 private String H(String s) throws IOException {
632 byte[] b = s.getBytes("US-ASCII");
633 MD5Digest md5 = new MD5Digest();
634 md5.update(b, 0, b.length);
635 byte[] out = new byte[md5.getDigestSize()];
638 for(int i=0; i<out.length; i++) {
639 ret += "0123456789abcdef".charAt((out[i] & 0xf0) >> 4);
640 ret += "0123456789abcdef".charAt(out[i] & 0x0f);
646 // Proxy ///////////////////////////////////////////////////////////
648 /** encapsulates most of the proxy logic; some is shared in HTTP.java */
649 public static class Proxy {
651 public String httpProxyHost = null; ///< the HTTP Proxy host to use
652 public int httpProxyPort = -1; ///< the HTTP Proxy port to use
653 public String httpsProxyHost = null; ///< seperate proxy for HTTPS
654 public int httpsProxyPort = -1;
655 public String socksProxyHost = null; ///< the SOCKS Proxy Host to use
656 public int socksProxyPort = -1; ///< the SOCKS Proxy Port to use
657 public String[] excluded = new String[] { }; ///< hosts to be excluded from proxy use; wildcards permitted
658 public JS proxyAutoConfigFunction = null; ///< the PAC script
660 public static Proxy detectProxyViaManual() {
661 Proxy ret = new Proxy();
663 ret.httpProxyHost = Platform.getEnv("http_proxy");
664 if (ret.httpProxyHost != null) {
665 if (ret.httpProxyHost.startsWith("http://")) ret.httpProxyHost = ret.httpProxyHost.substring(7);
666 if (ret.httpProxyHost.endsWith("/"))
667 ret.httpProxyHost = ret.httpProxyHost.substring(0, ret.httpProxyHost.length() - 1);
668 if (ret.httpProxyHost.indexOf(':') != -1) {
669 ret.httpProxyPort = Integer.parseInt(ret.httpProxyHost.substring(ret.httpProxyHost.indexOf(':') + 1));
670 ret.httpProxyHost = ret.httpProxyHost.substring(0, ret.httpProxyHost.indexOf(':'));
672 ret.httpProxyPort = 80;
676 ret.httpsProxyHost = Platform.getEnv("https_proxy");
677 if (ret.httpsProxyHost != null) {
678 if (ret.httpsProxyHost.startsWith("https://")) ret.httpsProxyHost = ret.httpsProxyHost.substring(7);
679 if (ret.httpsProxyHost.endsWith("/"))
680 ret.httpsProxyHost = ret.httpsProxyHost.substring(0, ret.httpsProxyHost.length() - 1);
681 if (ret.httpsProxyHost.indexOf(':') != -1) {
682 ret.httpsProxyPort = Integer.parseInt(ret.httpsProxyHost.substring(ret.httpsProxyHost.indexOf(':') + 1));
683 ret.httpsProxyHost = ret.httpsProxyHost.substring(0, ret.httpsProxyHost.indexOf(':'));
685 ret.httpsProxyPort = 80;
689 ret.socksProxyHost = Platform.getEnv("socks_proxy");
690 if (ret.socksProxyHost != null) {
691 if (ret.socksProxyHost.startsWith("socks://")) ret.socksProxyHost = ret.socksProxyHost.substring(7);
692 if (ret.socksProxyHost.endsWith("/"))
693 ret.socksProxyHost = ret.socksProxyHost.substring(0, ret.socksProxyHost.length() - 1);
694 if (ret.socksProxyHost.indexOf(':') != -1) {
695 ret.socksProxyPort = Integer.parseInt(ret.socksProxyHost.substring(ret.socksProxyHost.indexOf(':') + 1));
696 ret.socksProxyHost = ret.socksProxyHost.substring(0, ret.socksProxyHost.indexOf(':'));
698 ret.socksProxyPort = 80;
702 String noproxy = Platform.getEnv("no_proxy");
703 if (noproxy != null) {
704 StringTokenizer st = new StringTokenizer(noproxy, ",");
705 ret.excluded = new String[st.countTokens()];
706 for(int i=0; st.hasMoreTokens(); i++) ret.excluded[i] = st.nextToken();
709 if (ret.httpProxyHost == null && ret.socksProxyHost == null) return null;
713 public static JSScope proxyAutoConfigRootScope = new ProxyAutoConfigRootScope();
714 public static JS getProxyAutoConfigFunction(String url) {
716 BufferedReader br = new BufferedReader(new InputStreamReader(new HTTP(url, true).GET()));
719 while((s = br.readLine()) != null) script += s + "\n";
720 if (Log.on) Log.info(Proxy.class, "successfully retrieved WPAD PAC:");
721 if (Log.on) Log.info(Proxy.class, script);
724 Vector carpHosts = new Vector();
725 for(int i=0; i<script.length(); i++)
726 if (script.regionMatches(i, "new Node(", 0, 9)) {
727 String host = script.substring(i + 10, script.indexOf('\"', i + 11));
728 if (Log.on) Log.info(Proxy.class, "Detected MS Proxy Server CARP Script, Host=" + host);
729 carpHosts.addElement(host);
731 if (carpHosts.size() > 0) {
732 script = "function FindProxyForURL(url, host) {\nreturn \"";
733 for(int i=0; i<carpHosts.size(); i++)
734 script += "PROXY " + carpHosts.elementAt(i) + "; ";
736 if (Log.on) Log.info(Proxy.class, "DeCARPed PAC script:");
737 if (Log.on) Log.info(Proxy.class, script);
740 JS scr = JS.fromReader("PAC script at " + url, 0, new StringReader(script));
741 JS.cloneWithNewParentScope(scr, proxyAutoConfigRootScope).call(null, null, null, null, 0);
742 return (JS)proxyAutoConfigRootScope.get("FindProxyForURL");
743 } catch (Exception e) {
745 Log.info(Platform.class, "WPAD detection failed due to:");
746 if (e instanceof JSExn) {
748 org.ibex.js.JSArray arr = new org.ibex.js.JSArray();
749 arr.addElement(((JSExn)e).getObject());
750 } catch (Exception e2) {
751 Log.info(Platform.class, e);
754 else Log.info(Platform.class, e);
761 // Authorization ///////////////////////////////////////////////////////////////////////////////////
763 public static class Authorization {
765 static public String authorization = null;
766 static public String authorization2 = null;
767 static public Semaphore waitingForUser = new Semaphore();
769 public static synchronized void getPassword(final String realm, final String style,
770 final String proxyIP, String oldAuth) throws IOException {
772 // this handles cases where multiple threads hit the proxy auth at the same time -- all but one will block on the
773 // synchronized keyword. If 'authorization' changed while the thread was blocked, it means that the user entered
774 // a password, so we should reattempt authorization.
776 if (authorization != oldAuth) return;
777 if (Log.on) Log.info(Authorization.class, "displaying proxy authorization dialog");
778 Scheduler.add(new Scheduler.Task() {
779 public void perform() throws IOException, JSExn {
781 Template t = Template.buildTemplate("org/ibex/builtin/proxy_authorization.ibex", Stream.getInputStream((JS)Main.builtin.get("org/ibex/builtin/proxy_authorization.ibex")), new Ibex(null));
783 b.put("realm", realm);
784 b.put("proxyIP", proxyIP);
788 waitingForUser.block();
789 if (Log.on) Log.info(Authorization.class, "got proxy authorization info; re-attempting connection");
794 // ProxyAutoConfigRootJSScope ////////////////////////////////////////////////////////////////////
796 public static class ProxyAutoConfigRootScope extends JSScope.Global {
798 public ProxyAutoConfigRootScope() { super(); }
800 public Object get(Object name) throws JSExn {
802 case "isPlainHostName": return METHOD;
803 case "dnsDomainIs": return METHOD;
804 case "localHostOrDomainIs": return METHOD;
805 case "isResolvable": return METHOD;
806 case "isInNet": return METHOD;
807 case "dnsResolve": return METHOD;
808 case "myIpAddress": return METHOD;
809 case "dnsDomainLevels": return METHOD;
810 case "shExpMatch": return METHOD;
811 case "weekdayRange": return METHOD;
812 case "dateRange": return METHOD;
813 case "timeRange": return METHOD;
814 case "ProxyConfig": return ProxyConfig;
816 return super.get(name);
819 private static final JS proxyConfigBindings = new JS();
820 private static final JS ProxyConfig = new JS() {
821 public Object get(Object name) {
822 if (name.equals("bindings")) return proxyConfigBindings;
827 public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
829 case "isPlainHostName": return (a0.toString().indexOf('.') == -1) ? Boolean.TRUE : Boolean.FALSE;
830 case "dnsDomainIs": return (a0.toString().endsWith(a1.toString())) ? Boolean.TRUE : Boolean.FALSE;
831 case "localHostOrDomainIs":
832 return (a0.equals(a1) || (a0.toString().indexOf('.') == -1 && a1.toString().startsWith(a0.toString()))) ? T:F;
833 case "isResolvable": try {
834 return (InetAddress.getByName(a0.toString()) != null) ? Boolean.TRUE : Boolean.FALSE;
835 } catch (UnknownHostException e) { return F; }
837 if (nargs != 3) return Boolean.FALSE;
839 byte[] host = InetAddress.getByName(a0.toString()).getAddress();
840 byte[] net = InetAddress.getByName(a1.toString()).getAddress();
841 byte[] mask = InetAddress.getByName(a2.toString()).getAddress();
842 return ((host[0] & mask[0]) == net[0] &&
843 (host[1] & mask[1]) == net[1] &&
844 (host[2] & mask[2]) == net[2] &&
845 (host[3] & mask[3]) == net[3]) ?
846 Boolean.TRUE : Boolean.FALSE;
847 } catch (Exception e) {
848 throw new JSExn("exception in isInNet(): " + e);
852 return InetAddress.getByName(a0.toString()).getHostAddress();
853 } catch (UnknownHostException e) {
858 return InetAddress.getLocalHost().getHostAddress();
859 } catch (UnknownHostException e) {
860 if (Log.on) Log.info(this, "strange... host does not know its own address");
863 case "dnsDomainLevels":
864 String s = a0.toString();
866 while((i = s.indexOf('.', i)) != -1) i++;
867 return new Integer(i);
869 StringTokenizer st = new StringTokenizer(a1.toString(), "*", false);
870 String[] arr = new String[st.countTokens()];
871 String s = a0.toString();
872 for (int i=0; st.hasMoreTokens(); i++) arr[i] = st.nextToken();
873 return match(arr, s, 0) ? Boolean.TRUE : Boolean.FALSE;
875 TimeZone tz = (nargs < 3 || a2 == null || !a2.equals("GMT")) ?
876 TimeZone.getTimeZone("UTC") : TimeZone.getDefault();
877 Calendar c = new GregorianCalendar();
879 c.setTime(new java.util.Date());
880 java.util.Date d = c.getTime();
881 int day = d.getDay();
882 String d1s = a0.toString().toUpperCase();
884 for(int i=0; i<days.length; i++) if (days[i].equals(d1s)) d1 = i;
887 return d1 == day ? Boolean.TRUE : Boolean.FALSE;
889 String d2s = a1.toString().toUpperCase();
890 for(int i=0; i<days.length; i++) if (days[i].equals(d2s)) d2 = i;
892 return ((d1 <= d2 && day >= d1 && day <= d2) || (d1 > d2 && (day >= d1 || day <= d2))) ? T : F;
894 case "dateRange": throw new JSExn("Ibex does not support dateRange() in PAC scripts");
895 case "timeRange": throw new JSExn("Ibex does not support timeRange() in PAC scripts");
897 return super.callMethod(method, a0, a1, a2, rest, nargs);
899 private static boolean match(String[] arr, String s, int index) {
900 if (index >= arr.length) return true;
901 for(int i=0; i<s.length(); i++) {
902 String s2 = s.substring(i);
903 if (s2.startsWith(arr[index]) && match(arr, s2.substring(arr[index].length()), index + 1)) return true;
907 public static String[] days = { "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT" };
912 * An implementation of Microsoft's proprietary NTLM authentication protocol. This code was derived from Eric
913 * Glass's work, and is copyright as follows:
915 * Copyright (c) 2003 Eric Glass (eglass1 at comcast.net).
917 * Permission to use, copy, modify, and distribute this document for any purpose and without any fee is hereby
918 * granted, provided that the above copyright notice and this list of conditions appear in all copies.
919 * The most current version of this document may be obtained from http://davenport.sourceforge.net/ntlm.html .
921 public static class NTLM {
923 public static final byte[] type1 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01,
924 0x00, 0x00, 0x00, 0x00, 0x02, 0x02, 0x00 };
927 * Calculates the NTLM Response for the given challenge, using the
928 * specified password.
930 * @param password The user's password.
931 * @param challenge The Type 2 challenge from the server.
933 * @return The NTLM Response.
935 public static byte[] getNTLMResponse(String password, byte[] challenge)
936 throws UnsupportedEncodingException {
937 byte[] ntlmHash = ntlmHash(password);
938 return lmResponse(ntlmHash, challenge);
942 * Calculates the LM Response for the given challenge, using the specified
945 * @param password The user's password.
946 * @param challenge The Type 2 challenge from the server.
948 * @return The LM Response.
950 public static byte[] getLMResponse(String password, byte[] challenge)
952 byte[] lmHash = lmHash(password);
953 return lmResponse(lmHash, challenge);
957 * Calculates the NTLMv2 Response for the given challenge, using the
958 * specified authentication target, username, password, target information
959 * block, and client challenge.
961 * @param target The authentication target (i.e., domain).
962 * @param user The username.
963 * @param password The user's password.
964 * @param targetInformation The target information block from the Type 2
966 * @param challenge The Type 2 challenge from the server.
967 * @param clientChallenge The random 8-byte client challenge.
969 * @return The NTLMv2 Response.
971 public static byte[] getNTLMv2Response(String target, String user,
972 String password, byte[] targetInformation, byte[] challenge,
973 byte[] clientChallenge) throws UnsupportedEncodingException {
974 byte[] ntlmv2Hash = ntlmv2Hash(target, user, password);
975 byte[] blob = createBlob(targetInformation, clientChallenge);
976 return lmv2Response(ntlmv2Hash, blob, challenge);
980 * Calculates the LMv2 Response for the given challenge, using the
981 * specified authentication target, username, password, and client
984 * @param target The authentication target (i.e., domain).
985 * @param user The username.
986 * @param password The user's password.
987 * @param challenge The Type 2 challenge from the server.
988 * @param clientChallenge The random 8-byte client challenge.
990 * @return The LMv2 Response.
992 public static byte[] getLMv2Response(String target, String user,
993 String password, byte[] challenge, byte[] clientChallenge)
994 throws UnsupportedEncodingException {
995 byte[] ntlmv2Hash = ntlmv2Hash(target, user, password);
996 return lmv2Response(ntlmv2Hash, clientChallenge, challenge);
1000 * Calculates the NTLM2 Session Response for the given challenge, using the
1001 * specified password and client challenge.
1003 * @param password The user's password.
1004 * @param challenge The Type 2 challenge from the server.
1005 * @param clientChallenge The random 8-byte client challenge.
1007 * @return The NTLM2 Session Response. This is placed in the NTLM
1008 * response field of the Type 3 message; the LM response field contains
1009 * the client challenge, null-padded to 24 bytes.
1011 public static byte[] getNTLM2SessionResponse(String password,
1012 byte[] challenge, byte[] clientChallenge) throws UnsupportedEncodingException {
1013 byte[] ntlmHash = ntlmHash(password);
1014 MD5Digest md5 = new MD5Digest();
1015 md5.update(challenge, 0, challenge.length);
1016 md5.update(clientChallenge, 0, clientChallenge.length);
1017 byte[] sessionHash = new byte[8];
1018 byte[] md5_out = new byte[md5.getDigestSize()];
1019 md5.doFinal(md5_out, 0);
1020 System.arraycopy(md5_out, 0, sessionHash, 0, 8);
1021 return lmResponse(ntlmHash, sessionHash);
1025 * Creates the LM Hash of the user's password.
1027 * @param password The password.
1029 * @return The LM Hash of the given password, used in the calculation
1030 * of the LM Response.
1032 private static byte[] lmHash(String password) {
1034 byte[] oemPassword = password.toUpperCase().getBytes("US-ASCII");
1035 int length = java.lang.Math.min(oemPassword.length, 14);
1036 byte[] keyBytes = new byte[14];
1037 System.arraycopy(oemPassword, 0, keyBytes, 0, length);
1038 Key lowKey = createDESKey(keyBytes, 0);
1039 Key highKey = createDESKey(keyBytes, 7);
1040 byte[] magicConstant = "KGS!@#$%".getBytes("US-ASCII");
1041 Cipher des = Cipher.getInstance("DES/ECB/NoPadding");
1042 des.init(Cipher.ENCRYPT_MODE, lowKey);
1043 byte[] lowHash = des.doFinal(magicConstant);
1044 des.init(Cipher.ENCRYPT_MODE, highKey);
1045 byte[] highHash = des.doFinal(magicConstant);
1046 byte[] lmHash = new byte[16];
1047 System.arraycopy(lowHash, 0, lmHash, 0, 8);
1048 System.arraycopy(highHash, 0, lmHash, 8, 8);
1055 * Creates the NTLM Hash of the user's password.
1057 * @param password The password.
1059 * @return The NTLM Hash of the given password, used in the calculation
1060 * of the NTLM Response and the NTLMv2 and LMv2 Hashes.
1062 private static byte[] ntlmHash(String password) throws UnsupportedEncodingException {
1063 byte[] unicodePassword = password.getBytes("UnicodeLittleUnmarked");
1064 MD4Digest md4 = new MD4Digest();
1065 md4.update(unicodePassword, 0, unicodePassword.length);
1066 byte[] ret = new byte[md4.getDigestSize()];
1071 * Creates the NTLMv2 Hash of the user's password.
1073 * @param target The authentication target (i.e., domain).
1074 * @param user The username.
1075 * @param password The password.
1077 * @return The NTLMv2 Hash, used in the calculation of the NTLMv2
1078 * and LMv2 Responses.
1080 private static byte[] ntlmv2Hash(String target, String user,
1081 String password) throws UnsupportedEncodingException {
1082 byte[] ntlmHash = ntlmHash(password);
1083 String identity = user.toUpperCase() + target.toUpperCase();
1084 return hmacMD5(identity.getBytes("UnicodeLittleUnmarked"), ntlmHash);
1088 * Creates the LM Response from the given hash and Type 2 challenge.
1090 * @param hash The LM or NTLM Hash.
1091 * @param challenge The server challenge from the Type 2 message.
1093 * @return The response (either LM or NTLM, depending on the provided
1096 private static byte[] lmResponse(byte[] hash, byte[] challenge)
1099 byte[] keyBytes = new byte[21];
1100 System.arraycopy(hash, 0, keyBytes, 0, 16);
1101 Key lowKey = createDESKey(keyBytes, 0);
1102 Key middleKey = createDESKey(keyBytes, 7);
1103 Key highKey = createDESKey(keyBytes, 14);
1104 Cipher des = Cipher.getInstance("DES/ECB/NoPadding");
1105 des.init(Cipher.ENCRYPT_MODE, lowKey);
1106 byte[] lowResponse = des.doFinal(challenge);
1107 des.init(Cipher.ENCRYPT_MODE, middleKey);
1108 byte[] middleResponse = des.doFinal(challenge);
1109 des.init(Cipher.ENCRYPT_MODE, highKey);
1110 byte[] highResponse = des.doFinal(challenge);
1111 byte[] lmResponse = new byte[24];
1112 System.arraycopy(lowResponse, 0, lmResponse, 0, 8);
1113 System.arraycopy(middleResponse, 0, lmResponse, 8, 8);
1114 System.arraycopy(highResponse, 0, lmResponse, 16, 8);
1121 * Creates the LMv2 Response from the given hash, client data, and
1124 * @param hash The NTLMv2 Hash.
1125 * @param clientData The client data (blob or client challenge).
1126 * @param challenge The server challenge from the Type 2 message.
1128 * @return The response (either NTLMv2 or LMv2, depending on the
1131 private static byte[] lmv2Response(byte[] hash, byte[] clientData,
1133 byte[] data = new byte[challenge.length + clientData.length];
1134 System.arraycopy(challenge, 0, data, 0, challenge.length);
1135 System.arraycopy(clientData, 0, data, challenge.length,
1137 byte[] mac = hmacMD5(data, hash);
1138 byte[] lmv2Response = new byte[mac.length + clientData.length];
1139 System.arraycopy(mac, 0, lmv2Response, 0, mac.length);
1140 System.arraycopy(clientData, 0, lmv2Response, mac.length,
1142 return lmv2Response;
1146 * Creates the NTLMv2 blob from the given target information block and
1149 * @param targetInformation The target information block from the Type 2
1151 * @param clientChallenge The random 8-byte client challenge.
1153 * @return The blob, used in the calculation of the NTLMv2 Response.
1155 private static byte[] createBlob(byte[] targetInformation,
1156 byte[] clientChallenge) {
1157 byte[] blobSignature = new byte[] {
1158 (byte) 0x01, (byte) 0x01, (byte) 0x00, (byte) 0x00
1160 byte[] reserved = new byte[] {
1161 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
1163 byte[] unknown1 = new byte[] {
1164 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
1166 byte[] unknown2 = new byte[] {
1167 (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
1169 long time = System.currentTimeMillis();
1170 time += 11644473600000l; // milliseconds from January 1, 1601 -> epoch.
1171 time *= 10000; // tenths of a microsecond.
1172 // convert to little-endian byte array.
1173 byte[] timestamp = new byte[8];
1174 for (int i = 0; i < 8; i++) {
1175 timestamp[i] = (byte) time;
1178 byte[] blob = new byte[blobSignature.length + reserved.length +
1179 timestamp.length + clientChallenge.length +
1180 unknown1.length + targetInformation.length +
1183 System.arraycopy(blobSignature, 0, blob, offset, blobSignature.length);
1184 offset += blobSignature.length;
1185 System.arraycopy(reserved, 0, blob, offset, reserved.length);
1186 offset += reserved.length;
1187 System.arraycopy(timestamp, 0, blob, offset, timestamp.length);
1188 offset += timestamp.length;
1189 System.arraycopy(clientChallenge, 0, blob, offset,
1190 clientChallenge.length);
1191 offset += clientChallenge.length;
1192 System.arraycopy(unknown1, 0, blob, offset, unknown1.length);
1193 offset += unknown1.length;
1194 System.arraycopy(targetInformation, 0, blob, offset,
1195 targetInformation.length);
1196 offset += targetInformation.length;
1197 System.arraycopy(unknown2, 0, blob, offset, unknown2.length);
1202 * Calculates the HMAC-MD5 hash of the given data using the specified
1205 * @param data The data for which the hash will be calculated.
1206 * @param key The hashing key.
1208 * @return The HMAC-MD5 hash of the given data.
1210 private static byte[] hmacMD5(byte[] data, byte[] key) {
1211 byte[] ipad = new byte[64];
1212 byte[] opad = new byte[64];
1213 for (int i = 0; i < 64; i++) {
1214 ipad[i] = (byte) 0x36;
1215 opad[i] = (byte) 0x5c;
1217 for (int i = key.length - 1; i >= 0; i--) {
1221 byte[] content = new byte[data.length + 64];
1222 System.arraycopy(ipad, 0, content, 0, 64);
1223 System.arraycopy(data, 0, content, 64, data.length);
1224 MD5Digest md5 = new MD5Digest();
1225 md5.update(content, 0, content.length);
1226 data = new byte[md5.getDigestSize()];
1227 md5.doFinal(data, 0);
1228 content = new byte[data.length + 64];
1229 System.arraycopy(opad, 0, content, 0, 64);
1230 System.arraycopy(data, 0, content, 64, data.length);
1231 md5 = new MD5Digest();
1232 md5.update(content, 0, content.length);
1233 byte[] ret = new byte[md5.getDigestSize()];
1234 md5.doFinal(ret, 0);
1239 * Creates a DES encryption key from the given key material.
1241 * @param bytes A byte array containing the DES key material.
1242 * @param offset The offset in the given byte array at which
1243 * the 7-byte key material starts.
1245 * @return A DES encryption key created from the key material
1246 * starting at the specified offset in the given byte array.
1249 private static Key createDESKey(byte[] bytes, int offset) {
1250 byte[] keyBytes = new byte[7];
1251 System.arraycopy(bytes, offset, keyBytes, 0, 7);
1252 byte[] material = new byte[8];
1253 material[0] = keyBytes[0];
1254 material[1] = (byte) (keyBytes[0] << 7 | (keyBytes[1] & 0xff) >>> 1);
1255 material[2] = (byte) (keyBytes[1] << 6 | (keyBytes[2] & 0xff) >>> 2);
1256 material[3] = (byte) (keyBytes[2] << 5 | (keyBytes[3] & 0xff) >>> 3);
1257 material[4] = (byte) (keyBytes[3] << 4 | (keyBytes[4] & 0xff) >>> 4);
1258 material[5] = (byte) (keyBytes[4] << 3 | (keyBytes[5] & 0xff) >>> 5);
1259 material[6] = (byte) (keyBytes[5] << 2 | (keyBytes[6] & 0xff) >>> 6);
1260 material[7] = (byte) (keyBytes[6] << 1);
1261 oddParity(material);
1262 return new SecretKeySpec(material, "DES");
1267 * Applies odd parity to the given byte array.
1269 * @param bytes The data whose parity bits are to be adjusted for
1272 private static void oddParity(byte[] bytes) {
1273 for (int i = 0; i < bytes.length; i++) {
1275 boolean needsParity = (((b >>> 7) ^ (b >>> 6) ^ (b >>> 5) ^
1276 (b >>> 4) ^ (b >>> 3) ^ (b >>> 2) ^
1277 (b >>> 1)) & 0x01) == 0;
1279 bytes[i] |= (byte) 0x01;
1281 bytes[i] &= (byte) 0xfe;