*/
Semaphore okToRecieve = null;
+ /** true iff this is the first request to be made on this socket */
+ boolean firstRequest = true;
+
/** cache for resolveAndCheckIfFirewalled() */
static Hashtable resolvedHosts = new Hashtable();
connect();
sendRequest(contentType, content);
} catch (IOException e) {
- sock = null;
- in = null;
+ reset();
throw e;
}
blockOn = okToRecieve;
Hashtable h = in == null ? null : parseHeaders(in);
if (h == null) {
+ if (firstRequest) throw new HTTPException("server closed the socket with no response");
// sometimes the server chooses to close the stream between requests
- in = null; sock = null;
+ reset();
releaseMe.release();
return makeRequest(contentType, content);
}
if (h.get("HTTP").equals("1.0") && h.get("content-length") == null) {
if (Log.on) Log.log(this, "proxy returned an HTTP/1.0 reply with no content-length...");
- in = null; sock = null;
+ reset();
} else {
int cl = h.get("content-length") == null ? -1 : Integer.parseInt(h.get("content-length").toString());
new HTTPInputStream(in, cl, releaseMe).close();
}
- } catch (IOException e) { sock = null; in = null; throw e;
+ } catch (IOException e) { reset(); throw e;
} finally { if (doRelease) releaseMe.release();
}
}
return;
} catch (UnknownHostException uhe) { }
- if (Platform.detectProxy() == null) throw new HTTPException("could not resolve hostname \"" + host + "\" and no proxy configured");
- if (Log.on) Log.log(this, " could not resolve host " + host + "; using xmlrpc.xwt.org to ensure security");
- try {
- JS.Array args = new JS.Array();
- args.addElement(host);
- Object ret = new XMLRPC("http://xmlrpc.xwt.org/RPC2/", "dns.resolve").call(args);
- if (ret == null || !(ret instanceof String)) throw new Exception(" xmlrpc.xwt.org returned non-String: " + ret);
- resolvedHosts.put(host, ret);
- return;
- } catch (Throwable e) {
- throw new HTTPException("exception while attempting to use xmlrpc.xwt.org to resolve " + host + ": " + e);
- }
+ if (Platform.detectProxy() == null)
+ throw new HTTPException("could not resolve hostname \"" + host + "\" and no proxy configured");
}
// Methods to attempt socket creation /////////////////////////////////////////////////////////////////
+ private Socket getSocket(String host, int port, boolean ssl, boolean negotiate) throws IOException {
+ Socket ret = ssl ? new TinySSL(host, port, negotiate) : new Socket(java.net.InetAddress.getByName(host), port);
+ ret.setTcpNoDelay(true);
+ return ret;
+ }
+
+
/** Attempts a direct connection */
public Socket attemptDirect() {
try {
if (Log.verbose) Log.log(this, "attempting to create unproxied socket to " + host + ":" + port + (ssl ? " [ssl]" : ""));
- return Platform.getSocket(host, port, ssl, true);
+ return getSocket(host, port, ssl, true);
} catch (IOException e) {
if (Log.on) Log.log(this, "exception in attemptDirect(): " + e);
return null;
try {
if (Log.verbose) Log.log(this, "attempting to create HTTP proxied socket using proxy " + proxyHost + ":" + proxyPort);
- Socket sock = Platform.getSocket(proxyHost, proxyPort, ssl, false);
+ Socket sock = getSocket(proxyHost, proxyPort, ssl, false);
if (!ssl) {
if (!path.startsWith("http://")) path = "http://" + host + ":" + port + path;
} else {
" proxied socket using proxy " + proxyHost + ":" + proxyPort);
try {
- Socket sock = Platform.getSocket(proxyHost, proxyPort, ssl, false);
+ Socket sock = getSocket(proxyHost, proxyPort, ssl, false);
DataOutputStream dos = new DataOutputStream(sock.getOutputStream());
dos.writeByte(0x04); // SOCKSv4(a)
}
/** executes the PAC script and dispatches a call to one of the other attempt methods based on the result */
- public Socket attemptPAC(org.xwt.js.JS.Callable pacFunc) {
+ public Socket attemptPAC(org.xwt.js.JS pacFunc) {
if (Log.verbose) Log.log(this, "evaluating PAC script");
String pac = null;
try {
- org.xwt.js.JS.Array args = new org.xwt.js.JS.Array();
- args.addElement(url.toString());
- args.addElement(url.getHost());
- Object obj = pacFunc.call(args);
+ org.xwt.js.JSArray args = new org.xwt.js.JSArray();
+ Object obj = pacFunc.call(url.toString(), url.getHost(), null, null, 2);
if (Log.verbose) Log.log(this, " PAC script returned \"" + obj + "\"");
pac = obj.toString();
} catch (Throwable e) {
if (Log.verbose) Log.log(this, "creating HTTP object for connection to " + host + ":" + port);
Proxy pi = Platform.detectProxy();
- if (sock == null && pi != null && pi.proxyAutoConfigFunction != null) sock = attemptPAC(pi.proxyAutoConfigFunction);
- if (sock == null && pi != null && ssl && pi.httpsProxyHost != null) sock = attemptHttpProxy(pi.httpsProxyHost, pi.httpsProxyPort);
- if (sock == null && pi != null && pi.httpProxyHost != null) sock = attemptHttpProxy(pi.httpProxyHost, pi.httpProxyPort);
- if (sock == null && pi != null && pi.socksProxyHost != null) sock = attemptSocksProxy(pi.socksProxyHost, pi.socksProxyPort);
+ OUTER: do {
+ if (pi != null) {
+ for(int i=0; i<pi.excluded.length; i++) if (host.equals(pi.excluded[i])) break OUTER;
+ if (sock == null && pi.proxyAutoConfigJSFunction != null) sock = attemptPAC(pi.proxyAutoConfigJSFunction);
+ if (sock == null && ssl && pi.httpsProxyHost != null) sock = attemptHttpProxy(pi.httpsProxyHost, pi.httpsProxyPort);
+ if (sock == null && pi.httpProxyHost != null) sock = attemptHttpProxy(pi.httpProxyHost, pi.httpProxyPort);
+ if (sock == null && pi.socksProxyHost != null) sock = attemptSocksProxy(pi.socksProxyHost, pi.socksProxyPort);
+ }
+ } while (false);
proxied = sock != null;
if (sock == null) sock = attemptDirect();
if (sock == null) throw new HTTPException("unable to contact host " + host);
if (Log.on) Log.log(this, "Proxy AuthChallenge: " + h0.get("proxy-authenticate"));
Hashtable h = parseAuthenticationChallenge(h0.get("proxy-authenticate").toString());
String style = h.get("AUTHTYPE").toString();
- String realm = h.get("realm").toString();
+ String realm = (String)h.get("realm");
+
+ if (style.equals("NTLM") && Proxy.Authorization.authorization2 == null) {
+ Log.log(this, "Proxy identified itself as NTLM, sending Type 1 packet");
+ Proxy.Authorization.authorization2 = "NTLM " + Base64.encode(Proxy.NTLM.type1);
+ return;
+ }
if (!realm.equals("Digest") || Proxy.Authorization.authorization2 == null || !"true".equals(h.get("stale")))
Proxy.Authorization.getPassword(realm, style, sock.getInetAddress().getHostAddress(), Proxy.Authorization.authorization);
(h.get("opaque") == null ? "" : ("opaque=\"" + h.get("opaque") + "\", ")) +
"response=\"" + H(H(A1) + ":" + h.get("nonce") + ":" + H(A2)) + "\", " +
"algorithm=MD5";
+
+ } else if (style.equals("NTLM")) {
+ Log.log(this, "Proxy identified itself as NTLM, got Type 2 packet");
+ byte[] type2 = Base64.decode(((String)h0.get("proxy-authenticate")).substring(5).trim());
+ for(int i=0; i<type2.length; i += 4) {
+ String log = "";
+ if (i<type2.length) log += Integer.toString(type2[i] & 0xff, 16) + " ";
+ if (i+1<type2.length) log += Integer.toString(type2[i+1] & 0xff, 16) + " ";
+ if (i+2<type2.length) log += Integer.toString(type2[i+2] & 0xff, 16) + " ";
+ if (i+3<type2.length) log += Integer.toString(type2[i+3] & 0xff, 16) + " ";
+ Log.log(this, log);
+ }
+ // FEATURE: need to keep the connection open between type1 and type3
+ // FEATURE: finish this
+ //byte[] type3 = Proxy.NTLM.getResponse(
+ //Proxy.Authorization.authorization2 = "NTLM " + Base64.encode(type3));
}
}
// HTTPInputStream ///////////////////////////////////////////////////////////////////////////////////
/** An input stream that represents a subset of a longer input stream. Supports HTTP chunking as well */
- public class HTTPInputStream extends FilterInputStream {
+ public class HTTPInputStream extends FilterInputStream implements KnownLength {
/** if chunking, the number of bytes remaining in this subset; otherwise the remainder of the chunk */
private int length = 0;
this.length = length == -1 ? 0 : length;
}
+ public int getLength() { return contentLength; }
public boolean markSupported() { return false; }
public int read(byte[] b) throws IOException { return read(b, 0, b.length); }
public long skip(long n) throws IOException { return read(null, -1, (int)n); }
}
return ret;
} finally {
- if (!good) { this.HTTP.sock = null; this.HTTP.in = null; }
+ if (!good) reset();
}
}
}
}
+ void reset() {
+ firstRequest = true;
+ in = null;
+ sock = null;
+ }
+
// Misc Helpers ///////////////////////////////////////////////////////////////////////////////////
public String[] excluded = null;
/** the PAC script */
- public JS.Callable proxyAutoConfigFunction = null;
+ public JS proxyAutoConfigJSFunction = null;
public static Proxy detectProxyViaManual() {
Proxy ret = new Proxy();
return ret;
}
- public static JS.Scope proxyAutoConfigRootScope = new ProxyAutoConfigRootScope();
- public static JS.Callable getProxyAutoConfigFunction(String url) {
+ public static JSScope proxyAutoConfigRootJSScope = new ProxyAutoConfigRootJSScope();
+ public static JS getProxyAutoConfigJSFunction(String url) {
try {
BufferedReader br = new BufferedReader(new InputStreamReader(new HTTP(url, true).GET()));
String s = null;
if (Log.on) Log.log(Proxy.class, script);
}
- JS.CompiledFunction scr = JS.parse("PAC script at " + url, 0, new StringReader(script));
- scr.call(new JS.Array(), proxyAutoConfigRootScope);
- return (JS.Callable)proxyAutoConfigRootScope.get("FindProxyForURL");
+ JSFunction scr = JSFunction.fromReader("PAC script at " + url, 0, new StringReader(script));
+ scr.cloneWithNewParentScope(proxyAutoConfigRootJSScope).call(null, null, null, null, 0);
+ return (JS)proxyAutoConfigRootJSScope.get("FindProxyForURL");
} catch (Exception e) {
if (Log.on) {
Log.log(Platform.class, "WPAD detection failed due to:");
- if (e instanceof JS.Exn) {
+ if (e instanceof JSExn) {
try {
- org.xwt.js.JS.Array arr = new org.xwt.js.JS.Array();
- arr.addElement(((JS.Exn)e).getObject());
+ org.xwt.js.JSArray arr = new org.xwt.js.JSArray();
+ arr.addElement(((JSExn)e).getObject());
} catch (Exception e2) {
Log.log(Platform.class, e);
}
if (authorization != oldAuth) return;
if (Log.on) Log.log(Authorization.class, "displaying proxy authorization dialog");
+ /*
Message.Q.add(new Message() {
public void perform() {
Box b = new Box();
b.put("proxyIP", proxyIP);
}
});
-
+ */
waitingForUser.block();
if (Log.on) Log.log(Authorization.class, "got proxy authorization info; re-attempting connection");
}
- // ProxyAutoConfigRootScope ////////////////////////////////////////////////////////////////////
+ // ProxyAutoConfigRootJSScope ////////////////////////////////////////////////////////////////////
- public static class ProxyAutoConfigRootScope extends JS.GlobalScope {
+ public static class ProxyAutoConfigRootJSScope extends JSScope.Global {
- public ProxyAutoConfigRootScope() { super(null); }
+ public ProxyAutoConfigRootJSScope() { super(); }
public Object get(Object name) {
if (name.equals("isPlainHostName")) return isPlainHostName;
else return super.get(name);
}
- private static final JS.Obj proxyConfigBindings = new JS.Obj();
- private static final JS.Obj ProxyConfig = new JS.Obj() {
+ private static final JS proxyConfigBindings = new JS();
+ private static final JS ProxyConfig = new JS() {
public Object get(Object name) {
if (name.equals("bindings")) return proxyConfigBindings;
return null;
}
};
- private static final JS.Callable isPlainHostName = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS isPlainHostName = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
return (args.elementAt(0).toString().indexOf('.') == -1) ? Boolean.TRUE : Boolean.FALSE;
}
};
- private static final JS.Callable dnsDomainIs = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS dnsDomainIs = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
return (args.elementAt(0).toString().endsWith(args.elementAt(1).toString())) ? Boolean.TRUE : Boolean.FALSE;
}
};
- private static final JS.Callable localHostOrDomainIs = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS localHostOrDomainIs = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
return (args.elementAt(0).toString().equals(args.elementAt(1).toString()) ||
(args.elementAt(0).toString().indexOf('.') == -1 && args.elementAt(1).toString().startsWith(args.elementAt(0).toString()))) ?
Boolean.TRUE : Boolean.FALSE;
}
};
- private static final JS.Callable isResolvable = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS isResolvable = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
try {
return (InetAddress.getByName(args.elementAt(0).toString()) != null) ? Boolean.TRUE : Boolean.FALSE;
} catch (UnknownHostException e) {
}
};
- private static final JS.Callable isInNet = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS isInNet = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
if (args.length() != 3) return Boolean.FALSE;
try {
byte[] host = InetAddress.getByName(args.elementAt(0).toString()).getAddress();
(host[3] & mask[3]) == net[3]) ?
Boolean.TRUE : Boolean.FALSE;
} catch (Exception e) {
- throw new JS.Exn("exception in isInNet(): " + e);
+ throw new JSExn("exception in isInNet(): " + e);
}
}
};
- private static final JS.Callable dnsResolve = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS dnsResolve = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
try {
return InetAddress.getByName(args.elementAt(0).toString()).getHostAddress();
} catch (UnknownHostException e) {
}
};
- private static final JS.Callable myIpAddress = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS myIpAddress = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
try {
return InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
}
};
- private static final JS.Callable dnsDomainLevels = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS dnsDomainLevels = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
String s = args.elementAt(0).toString();
int i = 0;
while((i = s.indexOf('.', i)) != -1) i++;
return false;
}
- private static final JS.Callable shExpMatch = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS shExpMatch = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
StringTokenizer st = new StringTokenizer(args.elementAt(1).toString(), "*", false);
String[] arr = new String[st.countTokens()];
String s = args.elementAt(0).toString();
public static String[] days = { "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT" };
- private static final JS.Callable weekdayRange = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
+ private static final JS weekdayRange = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
TimeZone tz = (args.length() < 3 || args.elementAt(2) == null || !args.elementAt(2).equals("GMT")) ? TimeZone.getTimeZone("UTC") : TimeZone.getDefault();
Calendar c = new GregorianCalendar();
c.setTimeZone(tz);
}
};
- private static final JS.Callable dateRange = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
- throw new JS.Exn("XWT does not support dateRange() in PAC scripts");
+ private static final JS dateRange = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
+ throw new JSExn("XWT does not support dateRange() in PAC scripts");
}
};
- private static final JS.Callable timeRange = new JS.Callable() {
- public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
- throw new JS.Exn("XWT does not support timeRange() in PAC scripts");
+ private static final JS timeRange = new JS() {
+ public Object call(org.xwt.js.JSArray args) throws JSExn {
+ throw new JSExn("XWT does not support timeRange() in PAC scripts");
}
};
}
- }
+ /**
+ * An implementation of Microsoft's proprietary NTLM authentication protocol. This code was derived from Eric
+ * Glass's work, and is copyright as follows:
+ *
+ * Copyright (c) 2003 Eric Glass (eglass1 at comcast.net).
+ *
+ * Permission to use, copy, modify, and distribute this document for any purpose and without any fee is hereby
+ * granted, provided that the above copyright notice and this list of conditions appear in all copies.
+ * The most current version of this document may be obtained from http://davenport.sourceforge.net/ntlm.html .
+ */
+ public static class NTLM {
+
+ public static final byte[] type1 = new byte[] { 0x4e, 0x54, 0x4c, 0x4d, 0x53, 0x53, 0x50, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x02, 0x02, 0x00 };
+
+ /**
+ * Calculates the NTLM Response for the given challenge, using the
+ * specified password.
+ *
+ * @param password The user's password.
+ * @param challenge The Type 2 challenge from the server.
+ *
+ * @return The NTLM Response.
+ */
+ public static byte[] getNTLMResponse(String password, byte[] challenge)
+ throws Exception {
+ byte[] ntlmHash = ntlmHash(password);
+ return lmResponse(ntlmHash, challenge);
+ }
+
+ /**
+ * Calculates the LM Response for the given challenge, using the specified
+ * password.
+ *
+ * @param password The user's password.
+ * @param challenge The Type 2 challenge from the server.
+ *
+ * @return The LM Response.
+ */
+ public static byte[] getLMResponse(String password, byte[] challenge)
+ throws Exception {
+ byte[] lmHash = lmHash(password);
+ return lmResponse(lmHash, challenge);
+ }
+
+ /**
+ * Calculates the NTLMv2 Response for the given challenge, using the
+ * specified authentication target, username, password, target information
+ * block, and client challenge.
+ *
+ * @param target The authentication target (i.e., domain).
+ * @param user The username.
+ * @param password The user's password.
+ * @param targetInformation The target information block from the Type 2
+ * message.
+ * @param challenge The Type 2 challenge from the server.
+ * @param clientChallenge The random 8-byte client challenge.
+ *
+ * @return The NTLMv2 Response.
+ */
+ public static byte[] getNTLMv2Response(String target, String user,
+ String password, byte[] targetInformation, byte[] challenge,
+ byte[] clientChallenge) throws Exception {
+ byte[] ntlmv2Hash = ntlmv2Hash(target, user, password);
+ byte[] blob = createBlob(targetInformation, clientChallenge);
+ return lmv2Response(ntlmv2Hash, blob, challenge);
+ }
+
+ /**
+ * Calculates the LMv2 Response for the given challenge, using the
+ * specified authentication target, username, password, and client
+ * challenge.
+ *
+ * @param target The authentication target (i.e., domain).
+ * @param user The username.
+ * @param password The user's password.
+ * @param challenge The Type 2 challenge from the server.
+ * @param clientChallenge The random 8-byte client challenge.
+ *
+ * @return The LMv2 Response.
+ */
+ public static byte[] getLMv2Response(String target, String user,
+ String password, byte[] challenge, byte[] clientChallenge)
+ throws Exception {
+ byte[] ntlmv2Hash = ntlmv2Hash(target, user, password);
+ return lmv2Response(ntlmv2Hash, clientChallenge, challenge);
+ }
+
+ /**
+ * Calculates the NTLM2 Session Response for the given challenge, using the
+ * specified password and client challenge.
+ *
+ * @param password The user's password.
+ * @param challenge The Type 2 challenge from the server.
+ * @param clientChallenge The random 8-byte client challenge.
+ *
+ * @return The NTLM2 Session Response. This is placed in the NTLM
+ * response field of the Type 3 message; the LM response field contains
+ * the client challenge, null-padded to 24 bytes.
+ */
+ public static byte[] getNTLM2SessionResponse(String password,
+ byte[] challenge, byte[] clientChallenge) throws Exception {
+ byte[] ntlmHash = ntlmHash(password);
+ MD5Digest md5 = new MD5Digest();
+ md5.update(challenge, 0, challenge.length);
+ md5.update(clientChallenge, 0, clientChallenge.length);
+ byte[] sessionHash = new byte[8];
+ byte[] md5_out = new byte[md5.getDigestSize()];
+ md5.doFinal(md5_out, 0);
+ System.arraycopy(md5_out, 0, sessionHash, 0, 8);
+ return lmResponse(ntlmHash, sessionHash);
+ }
+
+ /**
+ * Creates the LM Hash of the user's password.
+ *
+ * @param password The password.
+ *
+ * @return The LM Hash of the given password, used in the calculation
+ * of the LM Response.
+ */
+ private static byte[] lmHash(String password) throws Exception {
+ /*
+ byte[] oemPassword = password.toUpperCase().getBytes("US-ASCII");
+ int length = java.lang.Math.min(oemPassword.length, 14);
+ byte[] keyBytes = new byte[14];
+ System.arraycopy(oemPassword, 0, keyBytes, 0, length);
+ Key lowKey = createDESKey(keyBytes, 0);
+ Key highKey = createDESKey(keyBytes, 7);
+ byte[] magicConstant = "KGS!@#$%".getBytes("US-ASCII");
+ Cipher des = Cipher.getInstance("DES/ECB/NoPadding");
+ des.init(Cipher.ENCRYPT_MODE, lowKey);
+ byte[] lowHash = des.doFinal(magicConstant);
+ des.init(Cipher.ENCRYPT_MODE, highKey);
+ byte[] highHash = des.doFinal(magicConstant);
+ byte[] lmHash = new byte[16];
+ System.arraycopy(lowHash, 0, lmHash, 0, 8);
+ System.arraycopy(highHash, 0, lmHash, 8, 8);
+ return lmHash;
+ */
+ return null;
+ }
+
+ /**
+ * Creates the NTLM Hash of the user's password.
+ *
+ * @param password The password.
+ *
+ * @return The NTLM Hash of the given password, used in the calculation
+ * of the NTLM Response and the NTLMv2 and LMv2 Hashes.
+ */
+ private static byte[] ntlmHash(String password) throws Exception {
+ byte[] unicodePassword = password.getBytes("UnicodeLittleUnmarked");
+ MD4Digest md4 = new MD4Digest();
+ md4.update(unicodePassword, 0, unicodePassword.length);
+ byte[] ret = new byte[md4.getDigestSize()];
+ return ret;
+ }
+
+ /**
+ * Creates the NTLMv2 Hash of the user's password.
+ *
+ * @param target The authentication target (i.e., domain).
+ * @param user The username.
+ * @param password The password.
+ *
+ * @return The NTLMv2 Hash, used in the calculation of the NTLMv2
+ * and LMv2 Responses.
+ */
+ private static byte[] ntlmv2Hash(String target, String user,
+ String password) throws Exception {
+ byte[] ntlmHash = ntlmHash(password);
+ String identity = user.toUpperCase() + target.toUpperCase();
+ return hmacMD5(identity.getBytes("UnicodeLittleUnmarked"), ntlmHash);
+ }
+
+ /**
+ * Creates the LM Response from the given hash and Type 2 challenge.
+ *
+ * @param hash The LM or NTLM Hash.
+ * @param challenge The server challenge from the Type 2 message.
+ *
+ * @return The response (either LM or NTLM, depending on the provided
+ * hash).
+ */
+ private static byte[] lmResponse(byte[] hash, byte[] challenge)
+ throws Exception {
+ /*
+ byte[] keyBytes = new byte[21];
+ System.arraycopy(hash, 0, keyBytes, 0, 16);
+ Key lowKey = createDESKey(keyBytes, 0);
+ Key middleKey = createDESKey(keyBytes, 7);
+ Key highKey = createDESKey(keyBytes, 14);
+ Cipher des = Cipher.getInstance("DES/ECB/NoPadding");
+ des.init(Cipher.ENCRYPT_MODE, lowKey);
+ byte[] lowResponse = des.doFinal(challenge);
+ des.init(Cipher.ENCRYPT_MODE, middleKey);
+ byte[] middleResponse = des.doFinal(challenge);
+ des.init(Cipher.ENCRYPT_MODE, highKey);
+ byte[] highResponse = des.doFinal(challenge);
+ byte[] lmResponse = new byte[24];
+ System.arraycopy(lowResponse, 0, lmResponse, 0, 8);
+ System.arraycopy(middleResponse, 0, lmResponse, 8, 8);
+ System.arraycopy(highResponse, 0, lmResponse, 16, 8);
+ return lmResponse;
+ */
+ return null;
+ }
+
+ /**
+ * Creates the LMv2 Response from the given hash, client data, and
+ * Type 2 challenge.
+ *
+ * @param hash The NTLMv2 Hash.
+ * @param clientData The client data (blob or client challenge).
+ * @param challenge The server challenge from the Type 2 message.
+ *
+ * @return The response (either NTLMv2 or LMv2, depending on the
+ * client data).
+ */
+ private static byte[] lmv2Response(byte[] hash, byte[] clientData,
+ byte[] challenge) throws Exception {
+ byte[] data = new byte[challenge.length + clientData.length];
+ System.arraycopy(challenge, 0, data, 0, challenge.length);
+ System.arraycopy(clientData, 0, data, challenge.length,
+ clientData.length);
+ byte[] mac = hmacMD5(data, hash);
+ byte[] lmv2Response = new byte[mac.length + clientData.length];
+ System.arraycopy(mac, 0, lmv2Response, 0, mac.length);
+ System.arraycopy(clientData, 0, lmv2Response, mac.length,
+ clientData.length);
+ return lmv2Response;
+ }
+ /**
+ * Creates the NTLMv2 blob from the given target information block and
+ * client challenge.
+ *
+ * @param targetInformation The target information block from the Type 2
+ * message.
+ * @param clientChallenge The random 8-byte client challenge.
+ *
+ * @return The blob, used in the calculation of the NTLMv2 Response.
+ */
+ private static byte[] createBlob(byte[] targetInformation,
+ byte[] clientChallenge) {
+ byte[] blobSignature = new byte[] {
+ (byte) 0x01, (byte) 0x01, (byte) 0x00, (byte) 0x00
+ };
+ byte[] reserved = new byte[] {
+ (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
+ };
+ byte[] unknown1 = new byte[] {
+ (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
+ };
+ byte[] unknown2 = new byte[] {
+ (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
+ };
+ long time = System.currentTimeMillis();
+ time += 11644473600000l; // milliseconds from January 1, 1601 -> epoch.
+ time *= 10000; // tenths of a microsecond.
+ // convert to little-endian byte array.
+ byte[] timestamp = new byte[8];
+ for (int i = 0; i < 8; i++) {
+ timestamp[i] = (byte) time;
+ time >>>= 8;
+ }
+ byte[] blob = new byte[blobSignature.length + reserved.length +
+ timestamp.length + clientChallenge.length +
+ unknown1.length + targetInformation.length +
+ unknown2.length];
+ int offset = 0;
+ System.arraycopy(blobSignature, 0, blob, offset, blobSignature.length);
+ offset += blobSignature.length;
+ System.arraycopy(reserved, 0, blob, offset, reserved.length);
+ offset += reserved.length;
+ System.arraycopy(timestamp, 0, blob, offset, timestamp.length);
+ offset += timestamp.length;
+ System.arraycopy(clientChallenge, 0, blob, offset,
+ clientChallenge.length);
+ offset += clientChallenge.length;
+ System.arraycopy(unknown1, 0, blob, offset, unknown1.length);
+ offset += unknown1.length;
+ System.arraycopy(targetInformation, 0, blob, offset,
+ targetInformation.length);
+ offset += targetInformation.length;
+ System.arraycopy(unknown2, 0, blob, offset, unknown2.length);
+ return blob;
+ }
+
+ /**
+ * Calculates the HMAC-MD5 hash of the given data using the specified
+ * hashing key.
+ *
+ * @param data The data for which the hash will be calculated.
+ * @param key The hashing key.
+ *
+ * @return The HMAC-MD5 hash of the given data.
+ */
+ private static byte[] hmacMD5(byte[] data, byte[] key) throws Exception {
+ byte[] ipad = new byte[64];
+ byte[] opad = new byte[64];
+ for (int i = 0; i < 64; i++) {
+ ipad[i] = (byte) 0x36;
+ opad[i] = (byte) 0x5c;
+ }
+ for (int i = key.length - 1; i >= 0; i--) {
+ ipad[i] ^= key[i];
+ opad[i] ^= key[i];
+ }
+ byte[] content = new byte[data.length + 64];
+ System.arraycopy(ipad, 0, content, 0, 64);
+ System.arraycopy(data, 0, content, 64, data.length);
+ MD5Digest md5 = new MD5Digest();
+ md5.update(content, 0, content.length);
+ data = new byte[md5.getDigestSize()];
+ md5.doFinal(data, 0);
+ content = new byte[data.length + 64];
+ System.arraycopy(opad, 0, content, 0, 64);
+ System.arraycopy(data, 0, content, 64, data.length);
+ md5 = new MD5Digest();
+ md5.update(content, 0, content.length);
+ byte[] ret = new byte[md5.getDigestSize()];
+ md5.doFinal(ret, 0);
+ return ret;
+ }
+
+ /**
+ * Creates a DES encryption key from the given key material.
+ *
+ * @param bytes A byte array containing the DES key material.
+ * @param offset The offset in the given byte array at which
+ * the 7-byte key material starts.
+ *
+ * @return A DES encryption key created from the key material
+ * starting at the specified offset in the given byte array.
+ */
+ /*
+ private static Key createDESKey(byte[] bytes, int offset) {
+ byte[] keyBytes = new byte[7];
+ System.arraycopy(bytes, offset, keyBytes, 0, 7);
+ byte[] material = new byte[8];
+ material[0] = keyBytes[0];
+ material[1] = (byte) (keyBytes[0] << 7 | (keyBytes[1] & 0xff) >>> 1);
+ material[2] = (byte) (keyBytes[1] << 6 | (keyBytes[2] & 0xff) >>> 2);
+ material[3] = (byte) (keyBytes[2] << 5 | (keyBytes[3] & 0xff) >>> 3);
+ material[4] = (byte) (keyBytes[3] << 4 | (keyBytes[4] & 0xff) >>> 4);
+ material[5] = (byte) (keyBytes[4] << 3 | (keyBytes[5] & 0xff) >>> 5);
+ material[6] = (byte) (keyBytes[5] << 2 | (keyBytes[6] & 0xff) >>> 6);
+ material[7] = (byte) (keyBytes[6] << 1);
+ oddParity(material);
+ return new SecretKeySpec(material, "DES");
+ }
+ */
+
+ /**
+ * Applies odd parity to the given byte array.
+ *
+ * @param bytes The data whose parity bits are to be adjusted for
+ * odd parity.
+ */
+ private static void oddParity(byte[] bytes) {
+ for (int i = 0; i < bytes.length; i++) {
+ byte b = bytes[i];
+ boolean needsParity = (((b >>> 7) ^ (b >>> 6) ^ (b >>> 5) ^
+ (b >>> 4) ^ (b >>> 3) ^ (b >>> 2) ^
+ (b >>> 1)) & 0x01) == 0;
+ if (needsParity) {
+ bytes[i] |= (byte) 0x01;
+ } else {
+ bytes[i] &= (byte) 0xfe;
+ }
+ }
+ }
+
+ }
+ }
}