1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
9 import org.bouncycastle.util.encoders.Base64;
11 /** encapsulates most of the proxy logic; some is shared in HTTP.java */
16 /** the HTTP Proxy host to use */
17 public String httpProxyHost = null;
19 /** the HTTP Proxy port to use */
20 public int httpProxyPort = -1;
22 /** if a seperate proxy should be used for HTTPS, this is the hostname; otherwise, httpProxyHost is used */
23 public String httpsProxyHost = null;
25 /** if a seperate proxy should be used for HTTPS, this is the port */
26 public int httpsProxyPort = -1;
28 /** the SOCKS Proxy Host to use */
29 public String socksProxyHost = null;
31 /** the SOCKS Proxy Port to use */
32 public int socksProxyPort = -1;
34 /** hosts to be excluded from proxy use; wildcards permitted */
35 public String[] excluded = null;
38 public JS.Callable proxyAutoConfigFunction = null;
40 public static Proxy detectProxyViaManual() {
41 Proxy ret = new Proxy();
43 ret.httpProxyHost = Platform.getEnv("http_proxy");
44 if (ret.httpProxyHost != null) {
45 if (ret.httpProxyHost.startsWith("http://")) ret.httpProxyHost = ret.httpProxyHost.substring(7);
46 if (ret.httpProxyHost.endsWith("/")) ret.httpProxyHost = ret.httpProxyHost.substring(0, ret.httpProxyHost.length() - 1);
47 if (ret.httpProxyHost.indexOf(':') != -1) {
48 ret.httpProxyPort = Integer.parseInt(ret.httpProxyHost.substring(ret.httpProxyHost.indexOf(':') + 1));
49 ret.httpProxyHost = ret.httpProxyHost.substring(0, ret.httpProxyHost.indexOf(':'));
51 ret.httpProxyPort = 80;
55 ret.httpsProxyHost = Platform.getEnv("https_proxy");
56 if (ret.httpsProxyHost != null) {
57 if (ret.httpsProxyHost.startsWith("https://")) ret.httpsProxyHost = ret.httpsProxyHost.substring(7);
58 if (ret.httpsProxyHost.endsWith("/")) ret.httpsProxyHost = ret.httpsProxyHost.substring(0, ret.httpsProxyHost.length() - 1);
59 if (ret.httpsProxyHost.indexOf(':') != -1) {
60 ret.httpsProxyPort = Integer.parseInt(ret.httpsProxyHost.substring(ret.httpsProxyHost.indexOf(':') + 1));
61 ret.httpsProxyHost = ret.httpsProxyHost.substring(0, ret.httpsProxyHost.indexOf(':'));
63 ret.httpsProxyPort = 80;
67 ret.socksProxyHost = Platform.getEnv("socks_proxy");
68 if (ret.socksProxyHost != null) {
69 if (ret.socksProxyHost.startsWith("socks://")) ret.socksProxyHost = ret.socksProxyHost.substring(7);
70 if (ret.socksProxyHost.endsWith("/")) ret.socksProxyHost = ret.socksProxyHost.substring(0, ret.socksProxyHost.length() - 1);
71 if (ret.socksProxyHost.indexOf(':') != -1) {
72 ret.socksProxyPort = Integer.parseInt(ret.socksProxyHost.substring(ret.socksProxyHost.indexOf(':') + 1));
73 ret.socksProxyHost = ret.socksProxyHost.substring(0, ret.socksProxyHost.indexOf(':'));
75 ret.socksProxyPort = 80;
79 String noproxy = Platform.getEnv("no_proxy");
80 if (noproxy != null) {
81 StringTokenizer st = new StringTokenizer(noproxy, ",");
82 ret.excluded = new String[st.countTokens()];
83 for(int i=0; st.hasMoreTokens(); i++) ret.excluded[i] = st.nextToken();
86 if (ret.httpProxyHost == null && ret.socksProxyHost == null) return null;
90 public static JS.Scope proxyAutoConfigRootScope = new ProxyAutoConfigRootScope();
91 public static JS.Callable getProxyAutoConfigFunction(String url) {
93 BufferedReader br = new BufferedReader(new InputStreamReader(new HTTP(url, true).GET()));
96 while((s = br.readLine()) != null) script += s + "\n";
97 if (Log.on) Log.log(Proxy.class, "successfully retrieved WPAD PAC:");
98 if (Log.on) Log.log(Proxy.class, script);
101 Vector carpHosts = new Vector();
102 for(int i=0; i<script.length(); i++)
103 if (script.regionMatches(i, "new Node(", 0, 9)) {
104 String host = script.substring(i + 10, script.indexOf('\"', i + 11));
105 if (Log.on) Log.log(Proxy.class, "Detected MS Proxy Server CARP Script, Host=" + host);
106 carpHosts.addElement(host);
108 if (carpHosts.size() > 0) {
109 script = "function FindProxyForURL(url, host) {\nreturn \"";
110 for(int i=0; i<carpHosts.size(); i++)
111 script += "PROXY " + carpHosts.elementAt(i) + "; ";
113 if (Log.on) Log.log(Proxy.class, "DeCARPed PAC script:");
114 if (Log.on) Log.log(Proxy.class, script);
117 JS.CompiledFunction scr = JS.parse("PAC script at " + url, 0, new StringReader(script));
118 scr.call(new JS.Array(), proxyAutoConfigRootScope);
119 return (JS.Callable)proxyAutoConfigRootScope.get("FindProxyForURL");
120 } catch (Exception e) {
122 Log.log(Platform.class, "WPAD detection failed due to:");
123 if (e instanceof JS.Exn) {
125 org.xwt.js.JS.Array arr = new org.xwt.js.JS.Array();
126 arr.addElement(((JS.Exn)e).getObject());
128 //XWT.recursivePrintObject.call();
129 } catch (Exception e2) {
130 Log.log(Platform.class, e);
133 else Log.log(Platform.class, e);
140 // Authorization ///////////////////////////////////////////////////////////////////////////////////
142 public static class Authorization {
144 static public String authorization = null;
145 static public String authorization2 = null;
146 static public Semaphore waitingForUser = new Semaphore();
148 public static synchronized void getPassword(final String realm, final String style, final String proxyIP, String oldAuth) {
150 // this handles cases where multiple threads hit the proxy auth at the same time -- all but one will block on the
151 // synchronized keyword. If 'authorization' changed while the thread was blocked, it means that the user entered
152 // a password, so we should reattempt authorization.
154 if (authorization != oldAuth) return;
155 if (Log.on) Log.log(Authorization.class, "displaying proxy authorization dialog");
156 MessageQueue.add(new Message() {
157 public void perform() {
158 Box b = new Box("org.xwt.builtin.proxy_authorization", null);
159 b.put("realm", realm);
160 b.put("proxyIP", proxyIP);
164 waitingForUser.block();
165 if (Log.on) Log.log(Authorization.class, "got proxy authorization info; re-attempting connection");
171 // ProxyAutoConfigRootScope ////////////////////////////////////////////////////////////////////
173 public static class ProxyAutoConfigRootScope extends JS.Scope {
175 public ProxyAutoConfigRootScope() { super(null); }
177 // FIXME: needs "standard objects"
179 public Object get(Object name) {
180 if (name.equals("isPlainHostName")) return isPlainHostName;
181 else if (name.equals("dnsDomainIs")) return dnsDomainIs;
182 else if (name.equals("localHostOrDomainIs")) return localHostOrDomainIs;
183 else if (name.equals("isResolvable")) return isResolvable;
184 else if (name.equals("isInNet")) return isInNet;
185 else if (name.equals("dnsResolve")) return dnsResolve;
186 else if (name.equals("myIpAddress")) return myIpAddress;
187 else if (name.equals("dnsDomainLevels")) return dnsDomainLevels;
188 else if (name.equals("shExpMatch")) return shExpMatch;
189 else if (name.equals("weekdayRange")) return weekdayRange;
190 else if (name.equals("dateRange")) return dateRange;
191 else if (name.equals("timeRange")) return timeRange;
192 else if (name.equals("ProxyConfig")) return ProxyConfig;
193 else return super.get(name);
196 private static final JS.Obj proxyConfigBindings = new JS.Obj();
197 private static final JS.Obj ProxyConfig = new JS.Obj() {
198 public Object get(Object name) {
199 if (name.equals("bindings")) return proxyConfigBindings;
204 private static final JS.Callable isPlainHostName = new JS.Callable() {
205 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
206 return (args.elementAt(0).toString().indexOf('.') == -1) ? Boolean.TRUE : Boolean.FALSE;
210 private static final JS.Callable dnsDomainIs = new JS.Callable() {
211 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
212 return (args.elementAt(0).toString().endsWith(args.elementAt(1).toString())) ? Boolean.TRUE : Boolean.FALSE;
216 private static final JS.Callable localHostOrDomainIs = new JS.Callable() {
217 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
218 return (args.elementAt(0).toString().equals(args.elementAt(1).toString()) ||
219 (args.elementAt(0).toString().indexOf('.') == -1 && args.elementAt(1).toString().startsWith(args.elementAt(0).toString()))) ?
220 Boolean.TRUE : Boolean.FALSE;
224 private static final JS.Callable isResolvable = new JS.Callable() {
225 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
227 return (InetAddress.getByName(args.elementAt(0).toString()) != null) ? Boolean.TRUE : Boolean.FALSE;
228 } catch (UnknownHostException e) {
229 return Boolean.FALSE;
234 private static final JS.Callable isInNet = new JS.Callable() {
235 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
236 if (args.length() != 3) return Boolean.FALSE;
238 byte[] host = InetAddress.getByName(args.elementAt(0).toString()).getAddress();
239 byte[] net = InetAddress.getByName(args.elementAt(1).toString()).getAddress();
240 byte[] mask = InetAddress.getByName(args.elementAt(2).toString()).getAddress();
241 return ((host[0] & mask[0]) == net[0] &&
242 (host[1] & mask[1]) == net[1] &&
243 (host[2] & mask[2]) == net[2] &&
244 (host[3] & mask[3]) == net[3]) ?
245 Boolean.TRUE : Boolean.FALSE;
246 } catch (Exception e) {
247 throw new JS.Exn("exception in isInNet(): " + e);
252 private static final JS.Callable dnsResolve = new JS.Callable() {
253 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
255 return InetAddress.getByName(args.elementAt(0).toString()).getHostAddress();
256 } catch (UnknownHostException e) {
262 private static final JS.Callable myIpAddress = new JS.Callable() {
263 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
265 return InetAddress.getLocalHost().getHostAddress();
266 } catch (UnknownHostException e) {
267 if (Log.on) Log.log(this, "strange... host does not know its own address");
273 private static final JS.Callable dnsDomainLevels = new JS.Callable() {
274 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
275 String s = args.elementAt(0).toString();
277 while((i = s.indexOf('.', i)) != -1) i++;
278 return new Integer(i);
282 private static boolean match(String[] arr, String s, int index) {
283 if (index >= arr.length) return true;
284 for(int i=0; i<s.length(); i++) {
285 String s2 = s.substring(i);
286 if (s2.startsWith(arr[index]) && match(arr, s2.substring(arr[index].length()), index + 1)) return true;
291 private static final JS.Callable shExpMatch = new JS.Callable() {
292 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
293 StringTokenizer st = new StringTokenizer(args.elementAt(1).toString(), "*", false);
294 String[] arr = new String[st.countTokens()];
295 String s = args.elementAt(0).toString();
296 for (int i=0; st.hasMoreTokens(); i++) arr[i] = st.nextToken();
297 return match(arr, s, 0) ? Boolean.TRUE : Boolean.FALSE;
301 public static String[] days = { "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT" };
303 private static final JS.Callable weekdayRange = new JS.Callable() {
304 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
305 TimeZone tz = (args.length() < 3 || args.elementAt(2) == null || !args.elementAt(2).equals("GMT")) ? TimeZone.getTimeZone("UTC") : TimeZone.getDefault();
306 Calendar c = new GregorianCalendar();
308 c.setTime(new java.util.Date());
309 java.util.Date d = c.getTime();
310 int day = d.getDay();
312 String d1s = args.elementAt(0).toString().toUpperCase();
314 for(int i=0; i<days.length; i++) if (days[i].equals(d1s)) d1 = i;
316 if (args.length() == 1)
317 return d1 == day ? Boolean.TRUE : Boolean.FALSE;
319 String d2s = args.elementAt(1).toString().toUpperCase();
320 for(int i=0; i<days.length; i++) if (days[i].equals(d2s)) d2 = i;
323 ((d1 <= d2 && day >= d1 && day <= d2) ||
324 (d1 > d2 && (day >= d1 || day <= d2))) ?
325 Boolean.TRUE : Boolean.FALSE;
329 private static final JS.Callable dateRange = new JS.Callable() {
330 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
331 throw new JS.Exn("XWT does not support dateRange() in PAC scripts");
335 private static final JS.Callable timeRange = new JS.Callable() {
336 public Object call(org.xwt.js.JS.Array args) throws JS.Exn {
337 throw new JS.Exn("XWT does not support timeRange() in PAC scripts");