1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
9 import org.mozilla.javascript.*;
10 import org.bouncycastle.util.encoders.Base64;
12 /** Singleton class that provides all functionality in the xwt.* namespace */
13 public final class XWT extends JSObject {
15 public static final XWT singleton = new XWT();
17 /** each key is a string representing a filename which the user has already given XWT permission to write to */
18 private static Hashtable safeFiles = new Hashtable();
20 public String getClassName() { return "XWT"; }
21 private XWT() { setSeal(true); }
23 public Object get(String name, Scriptable start) {
24 if (name == null) return null;
25 else if (name.equals("maxdim")) return new Integer(Short.MAX_VALUE);
26 else if (name.equals("parseFloat")) return JSObject.defaultObjects.get("parseFloat", null);
27 else if (name.equals("parseInt")) return JSObject.defaultObjects.get("parseInt", null);
28 else if (name.equals("alt")) return Surface.alt ? Boolean.TRUE : Boolean.FALSE;
29 else if (name.equals("control")) return Surface.control ? Boolean.TRUE : Boolean.FALSE;
30 else if (name.equals("shift")) return Surface.shift ? Boolean.TRUE : Boolean.FALSE;
31 else if (name.equals("date")) return date;
32 else if (name.equals("listfonts")) return listfonts;
33 else if (name.equals("regexp")) return regexp;
34 else if (name.equals("sleep")) return sleep;
35 else if (name.equals("yield")) return yield;
36 else if (name.equals("newBrowserWindow")) return newBrowserWindow;
37 else if (name.equals("textwidth")) return textwidth;
38 else if (name.equals("textheight")) return textheight;
39 else if (name.equals("newBox")) return newBox;
40 else if (name.equals("soap")) return soap;
41 else if (name.equals("xmlrpc")) return xmlrpc;
42 else if (name.equals("origin")) return Main.origin;
43 else if (name.equals("clipboard")) return Platform.getClipBoard();
44 else if (name.equals("altKeyName")) return Platform.altKeyName();
45 else if (name.equals("screenWidth")) return new Integer(Platform.getScreenWidth());
46 else if (name.equals("screenHeight")) return new Integer(Platform.getScreenHeight());
47 else if (name.equals("static")) return Static.getStatic("");
48 else if (name.equals("theme")) return theme;
49 else if (name.equals("openFile")) return openFile;
50 else if (name.equals("saveFile")) return saveFile;
51 else if (name.equals("saveFileAs")) return saveFileAs;
52 else if (name.equals("utfEncode")) return utfEncode;
53 else if (name.equals("fileSeparator")) return File.separator;
54 else if (name.equals("homeDir")) return System.getProperty("user.home");
55 else if (name.equals("tempDir")) return System.getProperty("java.io.tempdir");
56 else if (name.equals("recursivePrintObject")) return recursivePrintObject;
57 else if (name.equals("parseHTML")) return parseHTML;
58 else if (name.equals("button")) {
59 if (Surface.button1 && !Surface.button2 && !Surface.button3) return new Integer(1);
60 else if (!Surface.button1 && Surface.button2 && !Surface.button3) return new Integer(1);
61 else if (!Surface.button1 && !Surface.button2 && Surface.button3) return new Integer(1);
62 else return new Integer(0);
64 else if (name.equals("println")) return println;
65 else if (name.equals("math")) return org.xwt.util.JSObject.defaultObjects.get("Math", null);
66 else if (name.equals("loadArchive")) return loadArchive;
67 else if (name.equals("prefetchImage")) return prefetchImage;
68 else return super.get(name, start);
71 public void put(String name, Scriptable start, Object value) {
72 if (name == null) return;
73 else if (name.equals("thread") && value != null && value instanceof Function) ThreadMessage.newthread((Function)value);
74 else if (name.equals("clipboard")) Platform.setClipBoard(value.toString());
76 // FIXME: undocumented, possibly insecure
77 else if (name.equals("proxyAuthorization")) try {
78 HTTP.ProxyAuthorization.authorization = "Basic " + new String(Base64.encode(value.toString().getBytes("US-ASCII")));
79 HTTP.ProxyAuthorization.waitingForUser.release();
80 } catch (UnsupportedEncodingException e) {
81 if (Log.on) Log.log(this, e);
84 else super.put(name, start, value);
88 // JSFunction Instances ///////////////////////////////////////////////////////////////////
90 private static final JSObject.JSFunction newBrowserWindow = new JSObject.JSFunction() {
91 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
92 if (args.length != 1 || args[0] == null) return null;
93 Platform.newBrowserWindow(args[0].toString());
98 public static final JSObject.JSFunction yield = new JSObject.JSFunction() {
99 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
100 sleep.call(cx, null, null, null);
105 private static final JSObject.JSFunction println = new JSObject.JSFunction() {
106 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
107 if (args.length == 1)
109 String source = cx.interpreterSourceFile;
110 if (source.endsWith("._")) source = source.substring(0, source.length() - 2);
111 Log.log(source, args[0] == null ? "null" : args[0].toString());
117 private static final JSObject.JSFunction date = new JSObject.JSFunction() {
118 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
119 try { return Context.enter().newObject(org.xwt.util.JSObject.defaultObjects, "Date", args);
120 } catch (Exception e) {
121 if (Log.on) Log.log(this, "Exception in Context.newObject() -- this should never happen");
122 if (Log.on) Log.log(this, e);
128 private static final JSObject.JSFunction regexp = new JSObject.JSFunction() {
129 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
130 try { return Context.enter().newObject(org.xwt.util.JSObject.defaultObjects, "RegExp", args);
131 } catch (Exception e) {
132 if (Log.on) Log.log(this, "Exception in Context.newObject() -- this should never happen");
133 if (Log.on) Log.log(this, e);
139 private static final JSObject.JSFunction listfonts = new JSObject.JSFunction() {
140 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
141 return Context.enter().newArray(org.xwt.util.JSObject.defaultObjects, Platform.listFonts());
145 private static final JSObject.JSFunction theme = new JSObject.JSFunction() {
146 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
147 if (args.length != 2) return null;
148 if (args[0] == null || args[1] == null) return null;
149 Template.retheme(args[0].toString(), args[1].toString());
154 private static final JSObject.JSFunction xmlrpc = new JSObject.JSFunction() {
155 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
156 if (args.length != 1 || args[0] == null) return null;
157 return new XMLRPC(args[0].toString(), "");
161 private static final JSObject.JSFunction soap = new JSObject.JSFunction() {
162 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
163 if (args.length == 1 && args[0] != null) return new SOAP(args[0].toString(), "", null, null);
164 else if (args.length == 2 && args[0] != null && args[1] != null)
165 return new SOAP(args[0].toString(), "", args[1].toString(), null);
166 else if (args.length == 3 && args[0] != null && args[1] != null && args[2] != null)
167 return new SOAP(args[0].toString(), "", args[1].toString(), args[2].toString());
172 private static final JSObject.JSFunction textwidth = new JSObject.JSFunction() {
173 public Object call(Context cx, Scriptable scope, Scriptable thisObj, Object[] args) throws JavaScriptException {
174 if (args.length < 1 || args.length > 2) return null;
175 if (args[0] == null || (args.length == 2 && args[1] == null)) return null;
176 String font = args.length == 1 ? Platform.getDefaultFont() : args[0].toString();
177 String text = args.length == 1 ? args[0].toString() : args[1].toString();
178 XWF xwf = XWF.getXWF(font);
179 if (xwf == null) return new Integer(Platform.stringWidth(font, text));
180 else return new Integer(xwf.stringWidth(text));
185 private static final JSObject.JSFunction textheight = new JSObject.JSFunction() {
186 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
187 if (args.length > 1) return null;
188 if (args.length == 1 && args[0] == null) return null;
189 String font = args.length == 0 || args[0] == null ? Platform.getDefaultFont() : args[0].toString();
190 XWF xwf = XWF.getXWF(font);
191 if (xwf == null) return new Integer(Platform.getMaxAscent(font) + Platform.getMaxDescent(font));
192 else return new Integer(xwf.getMaxAscent() + xwf.getMaxDescent());
196 private static final JSObject.JSFunction newBox = new JSObject.JSFunction() {
197 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
199 Function callback = null;
200 for(int i=1; i<args.length; i++)
201 if (args[i] instanceof Function && callback == null)
202 callback = (Function)args[i];
204 Box ret = new Box(args.length == 0 || args[0] == null ? "box" : args[0].toString(), Template.defaultImportList, callback);
206 for(int i=1; i<args.length; i++)
207 if (args[i] instanceof Box)
208 ret.put(ret.numChildren(), null, (Box)args[i]);
209 for(int i=1; i<args.length; i++)
210 if (args[i] instanceof Scriptable && !(args[i] instanceof Box) && !(args[i] instanceof Function)) {
211 Scriptable s = (Scriptable)args[i];
212 Object[] keys = s.getIds();
214 // FIXME: need to ensure that this is putGlobally(), but still run traps...
215 for(int j=0; j<keys.length; j++) ret.put(keys[j].toString(), null, s.get(keys[j].toString(), s));
221 private static final JSObject.JSFunction sleep = new JSObject.JSFunction() {
222 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
223 if (args != null && (args.length != 1 || args[0] == null)) return null;
224 int i = args == null ? 0 : SpecialBoxProperty.stoi(args[0].toString());
226 Thread thread = Thread.currentThread();
227 if (!(thread instanceof ThreadMessage)) {
228 if (Log.on) Log.log(this, "cannot sleep() or yield() in the foreground thread");
231 ThreadMessage mythread = (ThreadMessage)thread;
232 mythread.done.release();
234 if (i > 0) try { Thread.sleep(i); } catch (Exception e) { }
236 MessageQueue.add(mythread);
242 private static final JSObject.JSFunction openFile = new JSObject.JSFunction() {
243 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
244 if (args.length != 1) return null;
245 String file = Platform.fileDialog(args[0].toString(), false);
246 return file == null ? null : new ByteStream(file);
250 private static final JSObject.JSFunction saveFile = new JSObject.JSFunction() {
251 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
252 if (args.length != 2) return null;
253 if (!(args[1] instanceof ByteStream)) return null;
254 String file = args[0].toString();
255 if (safeFiles.get(Platform.isCaseSensitive() ? file : file.toLowerCase()) == null) {
256 file = Platform.fileDialog(file, true);
257 if (file == null) return null;
258 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
261 ((ByteStream)args[1]).writeTo(new FileOutputStream(file));
263 } catch (IOException e) {
264 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
265 if (Log.on) Log.log(ByteStream.class, e);
266 throw new JavaScriptException("error while writing a ByteStream to a file");
271 private static final JSObject.JSFunction saveFileAs = new JSObject.JSFunction() {
272 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
273 if (args.length != 2) return null;
274 if (!(args[1] instanceof ByteStream)) return null;
275 String file = args[0].toString();
276 file = Platform.fileDialog(file, true);
277 if (file == null) return null;
278 safeFiles.put(Platform.isCaseSensitive() ? file : file.toLowerCase(), new Object());
280 ((ByteStream)args[1]).writeTo(new FileOutputStream(file));
282 } catch (IOException e) {
283 if (Log.on) Log.log(ByteStream.class, "IO Exception while writing a ByteStream to a file");
284 if (Log.on) Log.log(ByteStream.class, e);
285 throw new JavaScriptException("error while writing a ByteStream to a file");
290 private static final JSObject.JSFunction utfEncode = new JSObject.JSFunction() {
291 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
292 if (args == null || args.length != 1) return null;
293 return new ByteStream(args[0].toString().getBytes());
298 private static final JSObject.JSFunction parseHTML = new JSObject.JSFunction() {
299 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
300 if (args == null || args.length != 1 || args[0] == null) return null;
302 if (args[0] instanceof ByteStream) {
303 return HTML.parseReader(new InputStreamReader(((ByteStream)args[0]).getInputStream()));
305 return HTML.parseReader(new StringReader(args[0].toString()));
307 } catch (IOException e) {
308 if (Log.on) Log.log(HTML.class, "IO Exception while parsing HTML");
309 if (Log.on) Log.log(HTML.class, e);
310 throw new JavaScriptException("error while parsing HTML");
315 private static void recurse(String indent, String name, Object o, Context cx) {
316 if (!name.equals("")) name += " : ";
319 Log.log(cx.interpreterSourceFile, indent + name + "<null>");
321 } else if (o instanceof NativeArray) {
322 Log.log(cx.interpreterSourceFile, indent + name + "<array>");
323 NativeArray na = (NativeArray)o;
324 for(int i=0; i<na.jsGet_length(); i++)
325 recurse(indent + " ", i + "", na.get(i, null), cx);
327 } else if (!(o instanceof NativeDate) && (o instanceof JSObject || o instanceof ScriptableObject)) {
328 Log.log(cx.interpreterSourceFile, indent + name + "<object>");
329 Scriptable s = (Scriptable)o;
330 Object[] keys = s.getIds();
331 for(int i=0; i<keys.length; i++)
332 recurse(indent + " ", keys[i].toString(),
333 keys[i] instanceof Integer ? s.get(((Integer)keys[i]).intValue(), null) : s.get(keys[i].toString(), null), cx);
336 Log.log(cx.interpreterSourceFile, indent + name + o);
341 private static final JSObject.JSFunction recursivePrintObject = new JSObject.JSFunction() {
342 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
343 if (args == null || args.length != 1) return null;
344 recurse("", "", args[0], cx);
349 private static final JSObject.JSFunction loadArchive = new JSObject.JSFunction() {
350 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
351 if (!ThreadMessage.suspendThread()) return null;
354 if (args == null || args.length < 1 || args[0] == null) return null;
355 URL u = new URL(args[0].toString());
357 Function callback = null;
358 if (args.length == 2 && args[1] != null && args[1] instanceof Function) callback = (Function)args[1];
360 if (!u.getFile().endsWith(".xwar")) {
361 if (Log.on) Log.log(this, "Error: archive names must end with .xwar: " + u.getFile());
362 throw new JavaScriptException("Error: archive names must end with .xwar: " + u.getFile());
365 if (u.getProtocol().equals("http")) {
366 HTTP http = new HTTP(u.toString());
367 if (Main.originAddr == null) {
369 Main.originAddr = InetAddress.getByName(u.getHost());
370 } catch (UnknownHostException e) {
371 if (Log.on) Log.log(this, "couldn't resolve " + u.getHost() + "; proceeding without permissions");
372 Main.originAddr = InetAddress.getByName("0.0.0.0");
375 Main.originAddr = InetAddress.getByName("0.0.0.0");
377 Resources.loadArchive(http.getInputStream(), (int)http.getContentLength(), callback);
379 } else if (u.getProtocol().equals("file")) {
380 if (Main.originAddr != null) {
381 if (Log.on) Log.log(this, "scripts downloaded from the network may not load xwars from the local filesystem");
382 throw new JavaScriptException("scripts downloaded from the network may not load xwars from the local filesystem");
384 Resources.loadArchive(new FileInputStream(u.getFile()), (int)new File(u.getFile()).length(), callback);
387 if (Log.on) Log.log(this, "unknown protocol \"" + u.getProtocol() + "\"");
388 throw new JavaScriptException("unknown protocol \"" + u.getProtocol() + "\"");
391 } catch (MalformedURLException me) {
392 if (Log.on) Log.log(this, "Malformed URL: " + args[0]);
393 if (Log.on) Log.log(this, me);
394 throw new JavaScriptException(me.toString());
396 } catch (IOException ioe) {
397 if (Log.on) Log.log(this, "IOException while loading archive:");
398 if (Log.on) Log.log(this, ioe);
399 throw new JavaScriptException(ioe.toString());
402 ThreadMessage.resumeThread();
409 private static final JSObject.JSFunction prefetchImage = new JSObject.JSFunction() {
410 public Object call(Context cx, Scriptable thisObj, Scriptable ctorObj, Object[] args) throws JavaScriptException {
411 if (args == null || args.length < 1 || args[0] == null) return null;
412 Box.getImage(args[0].toString(), args.length > 1 && args[1] instanceof Function ? (Function)args[1] : null);