-// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
-package org.ibex.net;
-
-import java.net.*;
-import java.io.*;
-import java.util.*;
-import org.ibex.js.*;
-import org.ibex.util.*;
-import org.ibex.plat.*;
-import org.ibex.core.*;
-import org.ibex.crypto.*;
-
-/**
- * This object encapsulates a *single* HTTP connection. Multiple requests may be pipelined over a connection (thread-safe),
- * although any IOException encountered in a request will invalidate all later requests.
- */
-public class HTTP {
-
-
- // Public Methods ////////////////////////////////////////////////////////////////////////////////////////
-
- public HTTP(String url) { this(url, false); }
- public HTTP(String url, boolean skipResolveCheck) { originalUrl = url; this.skipResolveCheck = skipResolveCheck; }
-
- /** Performs an HTTP GET request */
- public InputStream GET() throws IOException { return makeRequest(null, null); }
-
- /** Performs an HTTP POST request; content is additional headers, blank line, and body */
- public InputStream POST(String contentType, String content) throws IOException { return makeRequest(contentType, content); }
-
- public static class HTTPException extends IOException { public HTTPException(String s) { super(s); } }
-
- public static HTTP stdio = new HTTP("stdio:");
-
-
- // Statics ///////////////////////////////////////////////////////////////////////////////////////////////
-
- static Hash resolvedHosts = new Hash(); ///< cache for resolveAndCheckIfFirewalled()
- private static Hash authCache = new Hash(); ///< cache of userInfo strings, keyed on originalUrl
-
-
- // Instance Data ///////////////////////////////////////////////////////////////////////////////////////////////
-
- final String originalUrl; ///< the URL as passed to the original constructor; this is never changed
- String url = null; ///< the URL to connect to; this is munged when the url is parsed */
- String host = null; ///< the host to connect to
- int port = -1; ///< the port to connect on
- boolean ssl = false; ///< true if SSL (HTTPS) should be used
- String path = null; ///< the path (URI) to retrieve on the server
- Socket sock = null; ///< the socket
- InputStream in = null; ///< the socket's inputstream
- String userInfo = null; ///< the username and password portions of the URL
- boolean firstRequest = true; ///< true iff this is the first request to be made on this socket
- boolean skipResolveCheck = false; ///< allowed to skip the resolve check when downloading PAC script
- boolean proxied = false; ///< true iff we're using a proxy
-
- /** this is null if the current request is the first request on
- * this HTTP connection; otherwise it is a Semaphore which will be
- * released once the request ahead of us has recieved its response
- */
- Semaphore okToRecieve = null;
-
- /**
- * This method isn't synchronized; however, only one thread can be in the inner synchronized block at a time, and the rest of
- * the method is protected by in-order one-at-a-time semaphore lock-steps
- */
- private InputStream makeRequest(String contentType, String content) throws IOException {
-
- // Step 1: send the request and establish a semaphore to stop any requests that pipeline after us
- Semaphore blockOn = null;
- Semaphore releaseMe = null;
- synchronized(this) {
- try {
- connect();
- sendRequest(contentType, content);
- } catch (IOException e) {
- reset();
- throw e;
- }
- blockOn = okToRecieve;
- releaseMe = okToRecieve = new Semaphore();
- }
-
- // Step 2: wait for requests ahead of us to complete, then read the reply off the stream
- boolean doRelease = true;
- try {
- if (blockOn != null) blockOn.block();
-
- // previous call wrecked the socket connection, but we already sent our request, so we can't just retry --
- // this could cause the server to receive the request twice, which could be bad (think of the case where the
- // server call causes Amazon.com to ship you an item with one-click purchasing).
- if (in == null)
- throw new HTTPException("a previous pipelined call messed up the socket");
-
- 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
- reset();
- releaseMe.release();
- return makeRequest(contentType, content);
- }
-
- String reply = h.get("STATUSLINE").toString();
-
- if (reply.startsWith("407") || reply.startsWith("401")) {
-
- if (reply.startsWith("407")) doProxyAuth(h, content == null ? "GET" : "POST");
- else doWebAuth(h, content == null ? "GET" : "POST");
-
- if (h.get("HTTP").equals("1.0") && h.get("content-length") == null) {
- if (Log.on) Log.info(this, "proxy returned an HTTP/1.0 reply with no content-length...");
- reset();
- } else {
- int cl = h.get("content-length") == null ? -1 : Integer.parseInt(h.get("content-length").toString());
- new HTTPInputStream(in, cl, releaseMe).close();
- }
- releaseMe.release();
- return makeRequest(contentType, content);
-
- } else if (reply.startsWith("2")) {
- if (h.get("HTTP").equals("1.0") && h.get("content-length") == null)
- throw new HTTPException("Ibex does not support HTTP/1.0 servers which fail to return the Content-Length header");
- int cl = h.get("content-length") == null ? -1 : Integer.parseInt(h.get("content-length").toString());
- InputStream ret = new HTTPInputStream(in, cl, releaseMe);
- if ("gzip".equals(h.get("content-encoding"))) ret = new java.util.zip.GZIPInputStream(ret);
- doRelease = false;
- return ret;
-
- } else {
- throw new HTTPException("HTTP Error: " + reply);
-
- }
-
- } catch (IOException e) { reset(); throw e;
- } finally { if (doRelease) releaseMe.release();
- }
- }
-
-
- // Safeguarded DNS Resolver ///////////////////////////////////////////////////////////////////////////
-
- /**
- * resolves the hostname and returns it as a string in the form "x.y.z.w"
- * @throws HTTPException if the host falls within a firewalled netblock
- */
- private void resolveAndCheckIfFirewalled(String host) throws HTTPException {
-
- // cached
- if (resolvedHosts.get(host) != null) return;
-
- // if all scripts are trustworthy (local FS), continue
- if (Main.originAddr == null) return;
-
- // resolve using DNS
- try {
- InetAddress addr = InetAddress.getByName(host);
- byte[] quadbyte = addr.getAddress();
- if ((quadbyte[0] == 10 ||
- (quadbyte[0] == 192 && quadbyte[1] == 168) ||
- (quadbyte[0] == 172 && (quadbyte[1] & 0xF0) == 16)) && !addr.equals(Main.originAddr))
- throw new HTTPException("security violation: " + host + " [" + addr.getHostAddress() +
- "] is in a firewalled netblock");
- return;
- } catch (UnknownHostException uhe) { }
-
- 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 SSL(host, port, negotiate) : new Socket(java.net.InetAddress.getByName(host), port);
- ret.setTcpNoDelay(true);
- return ret;
- }
-
- /** Attempts a direct connection */
- private Socket attemptDirect() {
- try {
- Log.info(this, "attempting to create unproxied socket to " +
- host + ":" + port + (ssl ? " [ssl]" : ""));
- return getSocket(host, port, ssl, true);
- } catch (IOException e) {
- if (Log.on) Log.info(this, "exception in attemptDirect(): " + e);
- return null;
- }
- }
-
- /** Attempts to use an HTTP proxy, employing the CONNECT method if HTTPS is requested */
- private Socket attemptHttpProxy(String proxyHost, int proxyPort) {
- try {
- if (Log.verbose) Log.info(this, "attempting to create HTTP proxied socket using proxy " + proxyHost + ":" + proxyPort);
- Socket sock = getSocket(proxyHost, proxyPort, ssl, false);
-
- if (!ssl) {
- if (!path.startsWith("http://")) path = "http://" + host + ":" + port + path;
- return sock;
- }
-
- PrintWriter pw = new PrintWriter(new OutputStreamWriter(sock.getOutputStream()));
- BufferedReader br = new BufferedReader(new InputStreamReader(sock.getInputStream()));
- pw.print("CONNECT " + host + ":" + port + " HTTP/1.1\r\n\r\n");
- pw.flush();
- String s = br.readLine();
- if (s.charAt(9) != '2') throw new HTTPException("proxy refused CONNECT method: \"" + s + "\"");
- while (br.readLine().length() > 0) { };
- ((SSL)sock).negotiate();
- return sock;
-
- } catch (IOException e) {
- if (Log.on) Log.info(this, "exception in attemptHttpProxy(): " + e);
- return null;
- }
- }
-
- /**
- * Implements SOCKSv4 with v4a DNS extension
- * @see http://www.socks.nec.com/protocol/socks4.protocol
- * @see http://www.socks.nec.com/protocol/socks4a.protocol
- */
- private Socket attemptSocksProxy(String proxyHost, int proxyPort) {
-
- // even if host is already a "x.y.z.w" string, we use this to parse it into bytes
- InetAddress addr = null;
- try { addr = InetAddress.getByName(host); } catch (Exception e) { }
-
- if (Log.verbose) Log.info(this, "attempting to create SOCKSv4" + (addr == null ? "" : "a") +
- " proxied socket using proxy " + proxyHost + ":" + proxyPort);
-
- try {
- Socket sock = getSocket(proxyHost, proxyPort, ssl, false);
-
- DataOutputStream dos = new DataOutputStream(sock.getOutputStream());
- dos.writeByte(0x04); // SOCKSv4(a)
- dos.writeByte(0x01); // CONNECT
- dos.writeShort(port & 0xffff); // port
- if (addr == null) dos.writeInt(0x00000001); // bogus IP
- else dos.write(addr.getAddress()); // actual IP
- dos.writeByte(0x00); // no userid
- if (addr == null) {
- PrintWriter pw = new PrintWriter(new OutputStreamWriter(dos));
- pw.print(host);
- pw.flush();
- dos.writeByte(0x00); // hostname null terminator
- }
- dos.flush();
-
- DataInputStream dis = new DataInputStream(sock.getInputStream());
- dis.readByte(); // reply version
- byte success = dis.readByte(); // success/fail
- dis.skip(6); // ip/port
-
- if ((int)(success & 0xff) == 90) {
- if (ssl) ((SSL)sock).negotiate();
- return sock;
- }
- if (Log.on) Log.info(this, "SOCKS server denied access, code " + (success & 0xff));
- return null;
-
- } catch (IOException e) {
- if (Log.on) Log.info(this, "exception in attemptSocksProxy(): " + e);
- return null;
- }
- }
-
- /** executes the PAC script and dispatches a call to one of the other attempt methods based on the result */
- private Socket attemptPAC(org.ibex.js.JS pacFunc) {
- if (Log.verbose) Log.info(this, "evaluating PAC script");
- String pac = null;
- try {
- JS obj = pacFunc.call(JS.S(url), JS.S(host), null, null, 2);
- if (Log.verbose) Log.info(this, " PAC script returned \"" + JS.debugToString(obj) + "\"");
- pac = JS.toString(obj);
- } catch (Throwable e) {
- if (Log.on) Log.info(this, "PAC script threw exception " + e);
- return null;
- }
-
- StringTokenizer st = new StringTokenizer(pac, ";", false);
- while (st.hasMoreTokens()) {
- String token = st.nextToken().trim();
- if (Log.verbose) Log.info(this, " trying \"" + token + "\"...");
- try {
- Socket ret = null;
- if (token.startsWith("DIRECT"))
- ret = attemptDirect();
- else if (token.startsWith("PROXY"))
- ret = attemptHttpProxy(token.substring(token.indexOf(' ') + 1, token.indexOf(':')),
- Integer.parseInt(token.substring(token.indexOf(':') + 1)));
- else if (token.startsWith("SOCKS"))
- ret = attemptSocksProxy(token.substring(token.indexOf(' ') + 1, token.indexOf(':')),
- Integer.parseInt(token.substring(token.indexOf(':') + 1)));
- if (ret != null) return ret;
- } catch (Throwable e) {
- if (Log.on) Log.info(this, "attempt at \"" + token + "\" failed due to " + e + "; trying next token");
- }
- }
- if (Log.on) Log.info(this, "all PAC results exhausted");
- return null;
- }
-
-
- // Everything Else ////////////////////////////////////////////////////////////////////////////
-
- private synchronized void connect() throws IOException {
- if (originalUrl.equals("stdio:")) { in = new BufferedInputStream(System.in); return; }
- if (sock != null) {
- if (in == null) in = new BufferedInputStream(sock.getInputStream());
- return;
- }
- // grab the userinfo; gcj doesn't have java.net.URL.getUserInfo()
- String url = originalUrl;
- userInfo = url.substring(url.indexOf("://") + 3);
- userInfo = userInfo.indexOf('/') == -1 ? userInfo : userInfo.substring(0, userInfo.indexOf('/'));
- if (userInfo.indexOf('@') != -1) {
- userInfo = userInfo.substring(0, userInfo.indexOf('@'));
- url = url.substring(0, url.indexOf("://") + 3) + url.substring(url.indexOf('@') + 1);
- } else {
- userInfo = null;
- }
-
- if (url.startsWith("https:")) {
- ssl = true;
- } else if (!url.startsWith("http:")) {
- throw new IOException("HTTP only supports http/https urls");
- }
- if (url.indexOf("://") == -1) throw new IOException("URLs must contain a ://");
- String temphost = url.substring(url.indexOf("://") + 3);
- path = temphost.substring(temphost.indexOf('/'));
- temphost = temphost.substring(0, temphost.indexOf('/'));
- if (temphost.indexOf(':') != -1) {
- port = Integer.parseInt(temphost.substring(temphost.indexOf(':')+1));
- temphost = temphost.substring(0, temphost.indexOf(':'));
- } else {
- port = ssl ? 443 : 80;
- }
- if (!skipResolveCheck) resolveAndCheckIfFirewalled(temphost);
- host = temphost;
- if (Log.verbose) Log.info(this, "creating HTTP object for connection to " + host + ":" + port);
-
- Proxy pi = Platform.detectProxy();
- 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.proxyAutoConfigFunction != null) sock = attemptPAC(pi.proxyAutoConfigFunction);
- 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 (in == null) in = new BufferedInputStream(sock.getInputStream());
- }
-
- private void sendRequest(String contentType, String content) throws IOException {
- PrintWriter pw = new PrintWriter(new OutputStreamWriter(originalUrl.equals("stdio:") ?
- System.out : sock.getOutputStream()));
- if (content != null) {
- pw.print("POST " + path + " HTTP/1.0\r\n"); // FIXME chunked encoding
- int contentLength = content.substring(0, 2).equals("\r\n") ?
- content.length() - 2 :
- (content.length() - content.indexOf("\r\n\r\n") - 4);
- pw.print("Content-Length: " + contentLength + "\r\n");
- if (contentType != null) pw.print("Content-Type: " + contentType + "\r\n");
- } else {
- pw.print("GET " + path + " HTTP/1.1\r\n");
- }
-
- pw.print("User-Agent: Ibex\r\n");
- pw.print("Accept-encoding: gzip\r\n");
- pw.print("Host: " + (host + (port == 80 ? "" : (":" + port))) + "\r\n");
- if (proxied) pw.print("X-RequestOrigin: " + Main.originHost + "\r\n");
-
- if (Proxy.Authorization.authorization != null) pw.print("Proxy-Authorization: "+Proxy.Authorization.authorization2+"\r\n");
- if (authCache.get(originalUrl) != null) pw.print("Authorization: " + authCache.get(originalUrl) + "\r\n");
-
- pw.print(content == null ? "\r\n" : content);
- pw.flush();
- }
-
- private void doWebAuth(Hashtable h0, String method) throws IOException {
- if (userInfo == null) throw new HTTPException("web server demanded username/password, but none were supplied");
- Hashtable h = parseAuthenticationChallenge(h0.get("www-authenticate").toString());
-
- if (h.get("AUTHTYPE").equals("Basic")) {
- if (authCache.get(originalUrl) != null) throw new HTTPException("username/password rejected");
- authCache.put(originalUrl, "Basic " + new String(Base64.encode(userInfo.getBytes("UTF8"))));
-
- } else if (h.get("AUTHTYPE").equals("Digest")) {
- if (authCache.get(originalUrl) != null && !"true".equals(h.get("stale")))
- throw new HTTPException("username/password rejected");
- String path2 = path;
- if (path2.startsWith("http://") || path2.startsWith("https://")) {
- path2 = path2.substring(path2.indexOf("://") + 3);
- path2 = path2.substring(path2.indexOf('/'));
- }
- String A1 = userInfo.substring(0, userInfo.indexOf(':')) + ":" + h.get("realm") + ":" +
- userInfo.substring(userInfo.indexOf(':') + 1);
- String A2 = method + ":" + path2;
- authCache.put(originalUrl,
- "Digest " +
- "username=\"" + userInfo.substring(0, userInfo.indexOf(':')) + "\", " +
- "realm=\"" + h.get("realm") + "\", " +
- "nonce=\"" + h.get("nonce") + "\", " +
- "uri=\"" + path2 + "\", " +
- (h.get("opaque") == null ? "" : ("opaque=\"" + h.get("opaque") + "\", ")) +
- "response=\"" + H(H(A1) + ":" + h.get("nonce") + ":" + H(A2)) + "\", " +
- "algorithm=MD5"
- );
-
- } else {
- throw new HTTPException("unknown authentication type: " + h.get("AUTHTYPE"));
- }
- }
-
- private void doProxyAuth(Hashtable h0, String method) throws IOException {
- if (Log.on) Log.info(this, "Proxy AuthChallenge: " + h0.get("proxy-authenticate"));
- Hashtable h = parseAuthenticationChallenge(h0.get("proxy-authenticate").toString());
- String style = h.get("AUTHTYPE").toString();
- String realm = (String)h.get("realm");
-
- if (style.equals("NTLM") && Proxy.Authorization.authorization2 == null) {
- Log.info(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);
-
- if (style.equals("Basic")) {
- Proxy.Authorization.authorization2 =
- "Basic " + new String(Base64.encode(Proxy.Authorization.authorization.getBytes("UTF8")));
-
- } else if (style.equals("Digest")) {
- String A1 = Proxy.Authorization.authorization.substring(0, userInfo.indexOf(':')) + ":" + h.get("realm") + ":" +
- Proxy.Authorization.authorization.substring(Proxy.Authorization.authorization.indexOf(':') + 1);
- String A2 = method + ":" + path;
- Proxy.Authorization.authorization2 =
- "Digest " +
- "username=\"" + Proxy.Authorization.authorization.substring(0, Proxy.Authorization.authorization.indexOf(':')) +
- "\", " +
- "realm=\"" + h.get("realm") + "\", " +
- "nonce=\"" + h.get("nonce") + "\", " +
- "uri=\"" + path + "\", " +
- (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.info(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.info(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 implements KnownLength {
-
- private int length = 0; ///< if chunking, numbytes left in this subset; else the remainder of the chunk
- private Semaphore releaseMe = null; ///< this semaphore will be released when the stream is closed
- boolean chunkedDone = false; ///< indicates that we have encountered the zero-length terminator chunk
- boolean firstChunk = true; ///< if we're on the first chunk, we don't pre-read a CRLF
- private int contentLength = 0; ///< the length of the entire content body; -1 if chunked
-
- HTTPInputStream(InputStream in, int length, Semaphore releaseMe) throws IOException {
- super(in);
- this.releaseMe = releaseMe;
- this.contentLength = length;
- 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); }
- public int available() throws IOException {
- if (contentLength == -1) return java.lang.Math.min(super.available(), length);
- return super.available();
- }
-
- public int read() throws IOException {
- byte[] b = new byte[1];
- int ret = read(b, 0, 1);
- return ret == -1 ? -1 : b[0] & 0xff;
- }
-
- private void readChunk() throws IOException {
- if (chunkedDone) return;
- if (!firstChunk) super.skip(2); // CRLF
- firstChunk = false;
- String chunkLen = "";
- while(true) {
- int i = super.read();
- if (i == -1) throw new HTTPException("encountered end of stream while reading chunk length");
-
- // FEATURE: handle chunking extensions
- if (i == '\r') {
- super.read(); // LF
- break;
- } else {
- chunkLen += (char)i;
- }
- }
- length = Integer.parseInt(chunkLen.trim(), 16);
- if (length == 0) chunkedDone = true;
- }
-
- public int read(byte[] b, int off, int len) throws IOException {
- boolean good = false;
- try {
- if (length == 0 && contentLength == -1) {
- readChunk();
- if (chunkedDone) { good = true; return -1; }
- } else {
- if (length == 0) { good = true; return -1; }
- }
- if (len > length) len = length;
- int ret = b == null ? (int)super.skip(len) : super.read(b, off, len);
- if (ret >= 0) {
- length -= ret;
- good = true;
- }
- return ret;
- } finally {
- if (!good) reset();
- }
- }
-
- public void close() throws IOException {
- if (contentLength == -1) {
- while(!chunkedDone) {
- if (length != 0) skip(length);
- readChunk();
- }
- skip(2);
- } else {
- if (length != 0) skip(length);
- }
- if (releaseMe != null) releaseMe.release();
- }
- }
-
- void reset() {
- firstRequest = true;
- in = null;
- sock = null;
- }
-
-
- // Misc Helpers ///////////////////////////////////////////////////////////////////////////////////
-
- /** reads a set of HTTP headers off of the input stream, returning null if the stream is already at its end */
- private Hashtable parseHeaders(InputStream in) throws IOException {
- Hashtable ret = new Hashtable();
-
- // we can't use a BufferedReader directly on the input stream, since it will buffer past the end of the headers
- byte[] buf = new byte[4096];
- int buflen = 0;
- while(true) {
- int read = in.read();
- if (read == -1 && buflen == 0) return null;
- if (read == -1) throw new HTTPException("stream closed while reading headers");
- buf[buflen++] = (byte)read;
- if (buflen >= 4 && buf[buflen - 4] == '\r' && buf[buflen - 3] == '\n' &&
- buf[buflen - 2] == '\r' && buf[buflen - 1] == '\n')
- break;
- if (buflen >=2 && buf[buflen - 1] == '\n' && buf[buflen - 2] == '\n')
- break; // nice for people using stdio
- if (buflen == buf.length) {
- byte[] newbuf = new byte[buf.length * 2];
- System.arraycopy(buf, 0, newbuf, 0, buflen);
- buf = newbuf;
- }
- }
-
- BufferedReader br = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(buf, 0, buflen)));
- String s = br.readLine();
- if (!s.startsWith("HTTP/")) throw new HTTPException("Expected reply to start with \"HTTP/\", got: " + s);
- ret.put("STATUSLINE", s.substring(s.indexOf(' ') + 1));
- ret.put("HTTP", s.substring(5, s.indexOf(' ')));
-
- while((s = br.readLine()) != null && s.length() > 0) {
- String front = s.substring(0, s.indexOf(':')).toLowerCase();
- String back = s.substring(s.indexOf(':') + 1).trim();
- // ugly hack: we never replace a Digest-auth with a Basic-auth (proxy + www)
- if (front.endsWith("-authenticate") && ret.get(front) != null && !back.equals("Digest")) continue;
- ret.put(front, back);
- }
- return ret;
- }
-
- private Hashtable parseAuthenticationChallenge(String s) {
- Hashtable ret = new Hashtable();
-
- s = s.trim();
- ret.put("AUTHTYPE", s.substring(0, s.indexOf(' ')));
- s = s.substring(s.indexOf(' ')).trim();
-
- while (s.length() > 0) {
- String val = null;
- String key = s.substring(0, s.indexOf('='));
- s = s.substring(s.indexOf('=') + 1);
- if (s.charAt(0) == '\"') {
- s = s.substring(1);
- val = s.substring(0, s.indexOf('\"'));
- s = s.substring(s.indexOf('\"') + 1);
- } else {
- val = s.indexOf(',') == -1 ? s : s.substring(0, s.indexOf(','));
- s = s.indexOf(',') == -1 ? "" : s.substring(s.indexOf(',') + 1);
- }
- if (s.length() > 0 && s.charAt(0) == ',') s = s.substring(1);
- s = s.trim();
- ret.put(key, val);
- }
- return ret;
- }
-
- private String H(String s) throws IOException {
- byte[] b = s.getBytes("UTF8");
- MD5 md5 = new MD5();
- md5.update(b, 0, b.length);
- byte[] out = new byte[md5.getDigestSize()];
- md5.doFinal(out, 0);
- String ret = "";
- for(int i=0; i<out.length; i++) {
- ret += "0123456789abcdef".charAt((out[i] & 0xf0) >> 4);
- ret += "0123456789abcdef".charAt(out[i] & 0x0f);
- }
- return ret;
- }
-
-
- // Proxy ///////////////////////////////////////////////////////////
-
- /** encapsulates most of the proxy logic; some is shared in HTTP.java */
- public static class Proxy {
-
- public String httpProxyHost = null; ///< the HTTP Proxy host to use
- public int httpProxyPort = -1; ///< the HTTP Proxy port to use
- public String httpsProxyHost = null; ///< seperate proxy for HTTPS
- public int httpsProxyPort = -1;
- public String socksProxyHost = null; ///< the SOCKS Proxy Host to use
- public int socksProxyPort = -1; ///< the SOCKS Proxy Port to use
- public String[] excluded = new String[] { }; ///< hosts to be excluded from proxy use; wildcards permitted
- public JS proxyAutoConfigFunction = null; ///< the PAC script
-
- public static Proxy detectProxyViaManual() {
- Proxy ret = new Proxy();
-
- ret.httpProxyHost = Platform.getEnv("http_proxy");
- if (ret.httpProxyHost != null) {
- if (ret.httpProxyHost.startsWith("http://")) ret.httpProxyHost = ret.httpProxyHost.substring(7);
- if (ret.httpProxyHost.endsWith("/"))
- ret.httpProxyHost = ret.httpProxyHost.substring(0, ret.httpProxyHost.length() - 1);
- if (ret.httpProxyHost.indexOf(':') != -1) {
- ret.httpProxyPort = Integer.parseInt(ret.httpProxyHost.substring(ret.httpProxyHost.indexOf(':') + 1));
- ret.httpProxyHost = ret.httpProxyHost.substring(0, ret.httpProxyHost.indexOf(':'));
- } else {
- ret.httpProxyPort = 80;
- }
- }
-
- ret.httpsProxyHost = Platform.getEnv("https_proxy");
- if (ret.httpsProxyHost != null) {
- if (ret.httpsProxyHost.startsWith("https://")) ret.httpsProxyHost = ret.httpsProxyHost.substring(7);
- if (ret.httpsProxyHost.endsWith("/"))
- ret.httpsProxyHost = ret.httpsProxyHost.substring(0, ret.httpsProxyHost.length() - 1);
- if (ret.httpsProxyHost.indexOf(':') != -1) {
- ret.httpsProxyPort = Integer.parseInt(ret.httpsProxyHost.substring(ret.httpsProxyHost.indexOf(':') + 1));
- ret.httpsProxyHost = ret.httpsProxyHost.substring(0, ret.httpsProxyHost.indexOf(':'));
- } else {
- ret.httpsProxyPort = 80;
- }
- }
-
- ret.socksProxyHost = Platform.getEnv("socks_proxy");
- if (ret.socksProxyHost != null) {
- if (ret.socksProxyHost.startsWith("socks://")) ret.socksProxyHost = ret.socksProxyHost.substring(7);
- if (ret.socksProxyHost.endsWith("/"))
- ret.socksProxyHost = ret.socksProxyHost.substring(0, ret.socksProxyHost.length() - 1);
- if (ret.socksProxyHost.indexOf(':') != -1) {
- ret.socksProxyPort = Integer.parseInt(ret.socksProxyHost.substring(ret.socksProxyHost.indexOf(':') + 1));
- ret.socksProxyHost = ret.socksProxyHost.substring(0, ret.socksProxyHost.indexOf(':'));
- } else {
- ret.socksProxyPort = 80;
- }
- }
-
- String noproxy = Platform.getEnv("no_proxy");
- if (noproxy != null) {
- StringTokenizer st = new StringTokenizer(noproxy, ",");
- ret.excluded = new String[st.countTokens()];
- for(int i=0; st.hasMoreTokens(); i++) ret.excluded[i] = st.nextToken();
- }
-
- if (ret.httpProxyHost == null && ret.socksProxyHost == null) return null;
- return ret;
- }
-
- public static JS proxyAutoConfigRootScope = /*new ProxyAutoConfigRootScope();*/ null; // JS:FIXME: New api
- public static JS getProxyAutoConfigFunction(String url) {
- try {
- BufferedReader br = new BufferedReader(new InputStreamReader(new HTTP(url, true).GET()));
- String s = null;
- String script = "";
- while((s = br.readLine()) != null) script += s + "\n";
- if (Log.on) Log.info(Proxy.class, "successfully retrieved WPAD PAC:");
- if (Log.on) Log.info(Proxy.class, script);
-
- // MS CARP hack
- Vector carpHosts = new Vector();
- for(int i=0; i<script.length(); i++)
- if (script.regionMatches(i, "new Node(", 0, 9)) {
- String host = script.substring(i + 10, script.indexOf('\"', i + 11));
- if (Log.on) Log.info(Proxy.class, "Detected MS Proxy Server CARP Script, Host=" + host);
- carpHosts.addElement(host);
- }
- if (carpHosts.size() > 0) {
- script = "function FindProxyForURL(url, host) {\nreturn \"";
- for(int i=0; i<carpHosts.size(); i++)
- script += "PROXY " + carpHosts.elementAt(i) + "; ";
- script += "\";\n}";
- if (Log.on) Log.info(Proxy.class, "DeCARPed PAC script:");
- if (Log.on) Log.info(Proxy.class, script);
- }
-
- JS scr = JS.fromReader("PAC script at " + url, 0, new StringReader(script));
- JS.cloneWithNewGlobalScope(scr, proxyAutoConfigRootScope).call(null, null, null, null, 0);
- return (JS)proxyAutoConfigRootScope.get(JS.S("FindProxyForURL"));
- } catch (Exception e) {
- if (Log.on) {
- Log.info(Platform.class, "WPAD detection failed due to:");
- // I have no idea what this was supposed to do
- /*if (e instanceof JSExn) {
- try {
- org.ibex.js.JSArray arr = new org.ibex.js.JSArray();
- arr.addElement(((JSExn)e).getObject());
- } catch (Exception e2) {
- Log.info(Platform.class, e);
- }
- }*/
- Log.info(Platform.class, e);
- }
- return null;
- }
- }
-
-
- // Authorization ///////////////////////////////////////////////////////////////////////////////////
-
- public static class Authorization {
-
- static public String authorization = null;
- static public String authorization2 = null;
- static public Semaphore waitingForUser = new Semaphore();
-
- public static synchronized void getPassword(final String realm, final String style,
- final String proxyIP, String oldAuth) throws IOException {
-
- // this handles cases where multiple threads hit the proxy auth at the same time -- all but one will block on the
- // synchronized keyword. If 'authorization' changed while the thread was blocked, it means that the user entered
- // a password, so we should reattempt authorization.
-
- if (authorization != oldAuth) return;
- if (Log.on) Log.info(Authorization.class, "displaying proxy authorization dialog");
- Scheduler.add(new Task() {
- public void perform() throws IOException, JSExn {
- Box b = new Box();
- Template t = null;
- // FIXME
- //Template.buildTemplate("org/ibex/builtin/proxy_authorization.ibex", Stream.getInputStream((JS)Main.builtin.get("org/ibex/builtin/proxy_authorization.ibex")), new Ibex(null));
- t.apply(b);
- b.put(JS.S("realm"), JS.S(realm));
- b.put(JS.S("proxyIP"), JS.S(proxyIP));
- }
- });
-
- waitingForUser.block();
- if (Log.on) Log.info(Authorization.class, "got proxy authorization info; re-attempting connection");
- }
- }
-
-
- // ProxyAutoConfigRootJSScope ////////////////////////////////////////////////////////////////////
-
- // FIXME: JS Update for new API
- /*public static class ProxyAutoConfigRootScope extends JSScope.Global {
-
- public ProxyAutoConfigRootScope() { super(); }
-
- public Object get(Object name) throws JSExn {
- //#switch(name)
- case "isPlainHostName": return METHOD;
- case "dnsDomainIs": return METHOD;
- case "localHostOrDomainIs": return METHOD;
- case "isResolvable": return METHOD;
- case "isInNet": return METHOD;
- case "dnsResolve": return METHOD;
- case "myIpAddress": return METHOD;
- case "dnsDomainLevels": return METHOD;
- case "shExpMatch": return METHOD;
- case "weekdayRange": return METHOD;
- case "dateRange": return METHOD;
- case "timeRange": return METHOD;
- case "ProxyConfig": return ProxyConfig;
- //#end
- return super.get(name);
- }
-
- private static final JS proxyConfigBindings = new JS.O();
- private static final JS ProxyConfig = new JS() {
- public Object get(Object name) {
- if (name.equals("bindings")) return proxyConfigBindings;
- return null;
- }
- };
-
- public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
- //#switch(method)
- case "isPlainHostName": return (a0.toString().indexOf('.') == -1) ? Boolean.TRUE : Boolean.FALSE;
- case "dnsDomainIs": return (a0.toString().endsWith(a1.toString())) ? Boolean.TRUE : Boolean.FALSE;
- case "localHostOrDomainIs":
- return (a0.equals(a1) || (a0.toString().indexOf('.') == -1 && a1.toString().startsWith(a0.toString()))) ? T:F;
- case "isResolvable": try {
- return (InetAddress.getByName(a0.toString()) != null) ? Boolean.TRUE : Boolean.FALSE;
- } catch (UnknownHostException e) { return F; }
- case "isInNet":
- if (nargs != 3) return Boolean.FALSE;
- try {
- byte[] host = InetAddress.getByName(a0.toString()).getAddress();
- byte[] net = InetAddress.getByName(a1.toString()).getAddress();
- byte[] mask = InetAddress.getByName(a2.toString()).getAddress();
- return ((host[0] & mask[0]) == net[0] &&
- (host[1] & mask[1]) == net[1] &&
- (host[2] & mask[2]) == net[2] &&
- (host[3] & mask[3]) == net[3]) ?
- Boolean.TRUE : Boolean.FALSE;
- } catch (Exception e) {
- throw new JSExn("exception in isInNet(): " + e);
- }
- case "dnsResolve":
- try {
- return InetAddress.getByName(a0.toString()).getHostAddress();
- } catch (UnknownHostException e) {
- return null;
- }
- case "myIpAddress":
- try {
- return InetAddress.getLocalHost().getHostAddress();
- } catch (UnknownHostException e) {
- if (Log.on) Log.info(this, "strange... host does not know its own address");
- return null;
- }
- case "dnsDomainLevels":
- String s = a0.toString();
- int i = 0;
- while((i = s.indexOf('.', i)) != -1) i++;
- return new Integer(i);
- case "shExpMatch":
- StringTokenizer st = new StringTokenizer(a1.toString(), "*", false);
- String[] arr = new String[st.countTokens()];
- String s = a0.toString();
- for (int i=0; st.hasMoreTokens(); i++) arr[i] = st.nextToken();
- return match(arr, s, 0) ? Boolean.TRUE : Boolean.FALSE;
- case "weekdayRange":
- TimeZone tz = (nargs < 3 || a2 == null || !a2.equals("GMT")) ?
- TimeZone.getTimeZone("UTC") : TimeZone.getDefault();
- Calendar c = new GregorianCalendar();
- c.setTimeZone(tz);
- c.setTime(new java.util.Date());
- java.util.Date d = c.getTime();
- int day = d.getDay();
- String d1s = a0.toString().toUpperCase();
- int d1 = 0, d2 = 0;
- for(int i=0; i<days.length; i++) if (days[i].equals(d1s)) d1 = i;
-
- if (nargs == 1)
- return d1 == day ? Boolean.TRUE : Boolean.FALSE;
-
- String d2s = a1.toString().toUpperCase();
- for(int i=0; i<days.length; i++) if (days[i].equals(d2s)) d2 = i;
-
- return ((d1 <= d2 && day >= d1 && day <= d2) || (d1 > d2 && (day >= d1 || day <= d2))) ? T : F;
-
- case "dateRange": throw new JSExn("Ibex does not support dateRange() in PAC scripts");
- case "timeRange": throw new JSExn("Ibex does not support timeRange() in PAC scripts");
- //#end
- return super.callMethod(method, a0, a1, a2, rest, nargs);
- }
- private static boolean match(String[] arr, String s, int index) {
- if (index >= arr.length) return true;
- for(int i=0; i<s.length(); i++) {
- String s2 = s.substring(i);
- if (s2.startsWith(arr[index]) && match(arr, s2.substring(arr[index].length()), index + 1)) return true;
- }
- return false;
- }
- public static String[] days = { "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT" };
- }*/
-
-
- /**
- * 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 UnsupportedEncodingException {
- 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)
- {
- 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 UnsupportedEncodingException {
- 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 UnsupportedEncodingException {
- 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 UnsupportedEncodingException {
- byte[] ntlmHash = ntlmHash(password);
- MD5 md5 = new MD5();
- 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) {
- /*
- byte[] oemPassword = password.toUpperCase().getBytes("UTF8");
- 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("UTF8");
- 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 UnsupportedEncodingException {
- // FIXME
- /*
- byte[] unicodePassword = password.getBytes("UnicodeLittleUnmarked");
- MD4 md4 = new MD4();
- md4.update(unicodePassword, 0, unicodePassword.length);
- byte[] ret = new byte[md4.getDigestSize()];
- return ret;
- */
- return null;
- }
-
- /**
- * 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 UnsupportedEncodingException {
- 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)
- {
- /*
- 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) {
- 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) {
- 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);
- MD5 md5 = new MD5();
- 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 MD5();
- 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;
- }
- }
- }
-
- }
- }
-}
projects / org.ibex.core.git / commitdiff