-
- /** unpacks a Microsoft CAB file (possibly embedded in another file; we scan for 'MSCF' */
- public static class CAB extends Res {
- private Res parent;
- CAB(Res parent) { this.parent = parent; }
- private int swap_endian(int i) {
- return ((i & 0xff) << 24) | ((i & 0xff00) << 8) | ((i & 0xff0000) >>> 8) | (i >>> 24);
- }
- public InputStream getInputStream(String path) throws IOException {
- try {
- return org.xwt.util.CAB.getFileInputStream(parent.getInputStream(), 2, path);
- } catch (EOFException eof) {
- throw new JS.Exn("MSCF header tag not found in file");
- } catch (IOException ioe) {
- throw new JS.Exn("IOException while reading file");
- }
- }
- }
-
- public Object callMethod(Object method, Array args, boolean checkOnly) throws JS.Exn {
- if (method.equals("getUTF")) {
- if (checkOnly) return Boolean.TRUE;
- if (args.length() != 0) return null;
- try {
- CharArrayWriter caw = new CharArrayWriter();
- InputStream is = getInputStream();
- BufferedReader r = new BufferedReader(new InputStreamReader(is));
- char[] buf = new char[1024];
- while(true) {
- int numread = r.read(buf, 0, 1024);
- if (numread == -1) break;
- caw.write(buf, 0, numread);
- }
- return caw.toString();
- } catch (IOException e) {
- if (Log.on) Log.log(Res.class, "IO Exception while reading from file");
- if (Log.on) Log.log(Res.class, e);
- throw new JS.Exn("error while reading from Resource");
- }
- } else if (method.equals("getDOM")) {
- if (checkOnly) return Boolean.TRUE;
- if (args.length() != 0) return null;
- return new XMLHelper().doParse();
- }
- if (checkOnly) return Boolean.FALSE;
- return null;
- }
-
- private class XMLHelper extends XML {
- Vector obStack = new Vector();
- public XMLHelper() { super(BUFFER_SIZE); }
- public void startElement(XML.Element c) throws XML.SchemaException {
- JS o = new JS.Obj();
- o.put("$name", c.localName);
- for(int i=0; i<c.len; i++) o.put(c.keys[i], c.vals[i]);
- o.put("$numchildren", new Integer(0));
- obStack.addElement(o);
- }
- public void endElement(XML.Element c) throws XML.SchemaException {
- if (obStack.size() == 1) return;
- JS me = (JS)obStack.lastElement();
- obStack.setSize(obStack.size() - 1);
- JS parent = (JS)obStack.lastElement();
- int numchildren = ((Integer)parent.get("$numchildren")).intValue();
- parent.put("$numchildren", new Integer(numchildren + 1));
- parent.put(new Integer(numchildren), me);
- }
- public void characters(char[] ch, int start, int length) throws XML.SchemaException {
- String s = new String(ch, start, length);
- JS parent = (JS)obStack.lastElement();
- int numchildren = ((Integer)parent.get("$numchildren")).intValue();
- Object lastChild = parent.get(new Integer(numchildren - 1));
- if (lastChild instanceof String) {
- parent.put(new Integer(numchildren - 1), lastChild + s);
- } else {
- parent.put("$numchildren", new Integer(numchildren + 1));
- parent.put(new Integer(numchildren), s);
- }
- }
- public void whitespace(char[] ch, int start, int length) {}
- public JS doParse() throws JS.Exn {
- try {
- InputStream is = getInputStream();
- BufferedReader r = new BufferedReader(new InputStreamReader(is));
- parse(r);
- } catch (XML.XMLException e) {
- throw new JS.Exn("error parsing XML: " + e.toString());
- } catch (IOException e) {
- if (Log.on) Log.log(this, "IO Exception while reading from file");
- if (Log.on) Log.log(this, e);
- throw new JS.Exn("error reading from Resource");
- }
- return obStack.size() >= 1 ? (JS)obStack.elementAt(0) : null;
- }
- }
-
- public void writeTo(OutputStream os) throws IOException {
- InputStream is = getInputStream();
- byte[] buf = new byte[1024];
- while(true) {
- int numread = is.read(buf, 0, 1024);
- if (numread == -1) break;
- if (Log.on) Log.log(this, "wrote " + numread + " bytes");
- os.write(buf, 0, numread);
- }
- os.flush();
-
- // we have to close this because flush() doesn't work on Win32-GCJ
- os.close();
- }