public int read(byte[] b, int st, int len) throws IOException {
if (owner.chunkLength <= 0) if (!owner.getData()) return -1;
if (owner.chunkLength < len) len = owner.chunkLength;
System.arraycopy(owner.inbuf, owner.chunkStart, b, st, len);
owner.chunkLength -= len;
owner.chunkStart += len;
return len;
}
/** Print the HTML tag. */
public static void printTag(PrintStream out, Hashtable atts) {
out.print("<applet");
String v = (String) atts.get("codebase");
if (v != null) {
out.print(" codebase=\"" + v + "\"");
}
v = (String) atts.get("code");
if (v == null) {
v = "applet.class";
}
out.print(" code=\"" + v + "\"");
v = (String) atts.get("width");
if (v == null) {
v = "150";
}
out.print(" width=" + v);
v = (String) atts.get("height");
if (v == null) {
v = "100";
}
out.print(" height=" + v);
v = (String) atts.get("name");
if (v != null) {
out.print(" name=\"" + v + "\"");
}
out.println(">");
// A very slow sorting algorithm
int len = atts.size();
String params[] = new String[len];
len = 0;
for (Enumeration e = atts.keys(); e.hasMoreElements(); ) {
String param = (String) e.nextElement();
int i = 0;
for (; i < len; i++) {
if (params[i].compareTo(param) >= 0) {
break;
}
}
System.arraycopy(params, i, params, i + 1, len - i);
params[i] = param;
len++;
}
for (int i = 0; i < len; i++) {
String param = params[i];
if (systemParam.get(param) == null) {
out.println("<param name=" + param + " value=\"" + atts.get(param) + "\">");
}
}
out.println("</applet>");
}
private static void checkConnect(URL url) {
SecurityManager security = System.getSecurityManager();
if (security != null) {
try {
j86.java.security.Permission perm = url.openConnection().getPermission();
if (perm != null) security.checkPermission(perm);
else security.checkConnect(url.getHost(), url.getPort());
} catch (j86.java.io.IOException ioe) {
security.checkConnect(url.getHost(), url.getPort());
}
}
}
private boolean need(int n) throws IOException {
if (limit - pos >= n) return true;
fill();
if (limit - pos >= n) return true;
if (seenEOF) return false;
byte nin[] = new byte[n + 100];
System.arraycopy(inbuf, pos, nin, 0, limit - pos);
limit = limit - pos;
pos = 0;
inbuf = nin;
fill();
return limit - pos >= n;
}
/** Return an enumeration of all the accessible applets on this page. */
public Enumeration getApplets() {
AppletSecurity security = (AppletSecurity) System.getSecurityManager();
Vector v = new Vector();
SocketPermission panelSp = new SocketPermission(panel.getCodeBase().getHost(), "connect");
for (Enumeration e = appletPanels.elements(); e.hasMoreElements(); ) {
AppletPanel p = (AppletPanel) e.nextElement();
if (p.getDocumentBase().equals(panel.getDocumentBase())) {
SocketPermission sp = new SocketPermission(p.getCodeBase().getHost(), "connect");
if (panelSp.implies(sp)) {
v.addElement(p.applet);
}
}
}
return v.elements();
}
private void fill() throws IOException {
if (!seenEOF) {
if (pos > 0 && pos < limit) {
System.arraycopy(inbuf, pos, inbuf, 0, limit - pos);
limit = limit - pos;
pos = 0;
} else if (pos >= limit) {
pos = 0;
limit = 0;
}
int bsize = inbuf.length;
while (limit < bsize) {
int n = underlyingInputStream.read(inbuf, limit, bsize - limit);
if (n <= 0) {
seenEOF = true;
break;
}
limit += n;
}
}
}
/** Get an applet by name. */
public Applet getApplet(String name) {
AppletSecurity security = (AppletSecurity) System.getSecurityManager();
name = name.toLowerCase();
SocketPermission panelSp = new SocketPermission(panel.getCodeBase().getHost(), "connect");
for (Enumeration e = appletPanels.elements(); e.hasMoreElements(); ) {
AppletPanel p = (AppletPanel) e.nextElement();
String param = p.getParameter("name");
if (param != null) {
param = param.toLowerCase();
}
if (name.equals(param) && p.getDocumentBase().equals(panel.getDocumentBase())) {
SocketPermission sp = new SocketPermission(p.getCodeBase().getHost(), "connect");
if (panelSp.implies(sp)) {
return p.applet;
}
}
}
return null;
}
/**
* Send the initial set of events to the appletviewer event queue. On start-up the current
* behaviour is to load the applet and call Applet.init() and Applet.start().
*/
private void initEventQueue() {
// appletviewer.send.event is an undocumented and unsupported system
// property which is used exclusively for testing purposes.
String eventList = System.getProperty("appletviewer.send.event");
if (eventList == null) {
// Add the standard events onto the event queue.
panel.sendEvent(AppletPanel.APPLET_LOAD);
panel.sendEvent(AppletPanel.APPLET_INIT);
panel.sendEvent(AppletPanel.APPLET_START);
} else {
// We're testing AppletViewer. Force the specified set of events
// onto the event queue, wait for the events to be processed, and
// exit.
// The list of events that will be executed is provided as a
// ","-separated list. No error-checking will be done on the list.
String[] events = splitSeparator(",", eventList);
for (int i = 0; i < events.length; i++) {
System.out.println("Adding event to queue: " + events[i]);
if (events[i].equals("dispose")) panel.sendEvent(AppletPanel.APPLET_DISPOSE);
else if (events[i].equals("load")) panel.sendEvent(AppletPanel.APPLET_LOAD);
else if (events[i].equals("init")) panel.sendEvent(AppletPanel.APPLET_INIT);
else if (events[i].equals("start")) panel.sendEvent(AppletPanel.APPLET_START);
else if (events[i].equals("stop")) panel.sendEvent(AppletPanel.APPLET_STOP);
else if (events[i].equals("destroy")) panel.sendEvent(AppletPanel.APPLET_DESTROY);
else if (events[i].equals("quit")) panel.sendEvent(AppletPanel.APPLET_QUIT);
else if (events[i].equals("error")) panel.sendEvent(AppletPanel.APPLET_ERROR);
else
// non-fatal error if we get an unrecognized event
System.out.println("Unrecognized event name: " + events[i]);
}
while (!panel.emptyEventQueue()) ;
appletSystemExit();
}
}
/*
* Parse a keystore domain configuration file and associated collection
* of keystore passwords to create a collection of KeyStore.Builder.
*/
private List<KeyStoreBuilderComponents> getBuilders(
URI configuration, Map<String, KeyStore.ProtectionParameter> passwords) throws IOException {
PolicyParser parser = new PolicyParser(true); // expand properties
Collection<PolicyParser.DomainEntry> domains = null;
List<KeyStoreBuilderComponents> builders = new ArrayList<>();
String uriDomain = configuration.getFragment();
try (InputStreamReader configurationReader =
new InputStreamReader(PolicyUtil.getInputStream(configuration.toURL()), "UTF-8")) {
parser.read(configurationReader);
domains = parser.getDomainEntries();
} catch (MalformedURLException mue) {
throw new IOException(mue);
} catch (PolicyParser.ParsingException pe) {
throw new IOException(pe);
}
for (PolicyParser.DomainEntry domain : domains) {
Map<String, String> domainProperties = domain.getProperties();
if (uriDomain != null && (!uriDomain.equalsIgnoreCase(domain.getName()))) {
continue; // skip this domain
}
if (domainProperties.containsKey(ENTRY_NAME_SEPARATOR)) {
this.entryNameSeparator = domainProperties.get(ENTRY_NAME_SEPARATOR);
// escape any regex meta characters
char ch = 0;
StringBuilder s = new StringBuilder();
for (int i = 0; i < this.entryNameSeparator.length(); i++) {
ch = this.entryNameSeparator.charAt(i);
if (REGEX_META.indexOf(ch) != -1) {
s.append('\\');
}
s.append(ch);
}
this.entryNameSeparatorRegEx = s.toString();
}
Collection<PolicyParser.KeyStoreEntry> keystores = domain.getEntries();
for (PolicyParser.KeyStoreEntry keystore : keystores) {
String keystoreName = keystore.getName();
Map<String, String> properties = new HashMap<>(domainProperties);
properties.putAll(keystore.getProperties());
String keystoreType = DEFAULT_KEYSTORE_TYPE;
if (properties.containsKey(KEYSTORE_TYPE)) {
keystoreType = properties.get(KEYSTORE_TYPE);
}
Provider keystoreProvider = null;
if (properties.containsKey(KEYSTORE_PROVIDER_NAME)) {
String keystoreProviderName = properties.get(KEYSTORE_PROVIDER_NAME);
keystoreProvider = Security.getProvider(keystoreProviderName);
if (keystoreProvider == null) {
throw new IOException("Error locating JCE provider: " + keystoreProviderName);
}
}
File keystoreFile = null;
if (properties.containsKey(KEYSTORE_URI)) {
String uri = properties.get(KEYSTORE_URI);
try {
if (uri.startsWith("file://")) {
keystoreFile = new File(new URI(uri));
} else {
keystoreFile = new File(uri);
}
} catch (URISyntaxException | IllegalArgumentException e) {
throw new IOException(
"Error processing keystore property: " + "keystoreURI=\"" + uri + "\"", e);
}
}
KeyStore.ProtectionParameter keystoreProtection = null;
if (passwords.containsKey(keystoreName)) {
keystoreProtection = passwords.get(keystoreName);
} else if (properties.containsKey(KEYSTORE_PASSWORD_ENV)) {
String env = properties.get(KEYSTORE_PASSWORD_ENV);
String pwd = System.getenv(env);
if (pwd != null) {
keystoreProtection = new KeyStore.PasswordProtection(pwd.toCharArray());
} else {
throw new IOException(
"Error processing keystore property: " + "keystorePasswordEnv=\"" + env + "\"");
}
} else {
keystoreProtection = new KeyStore.PasswordProtection(null);
}
builders.add(
new KeyStoreBuilderComponents(
keystoreName, keystoreType, keystoreProvider, keystoreFile, keystoreProtection));
}
break; // skip other domains
}
if (builders.isEmpty()) {
throw new IOException("Error locating domain configuration data " + "for: " + configuration);
}
return builders;
}
protected boolean handleChunk(int key, byte[] buf, int st, int len) throws IOException {
switch (key) {
case bKGDChunk:
Color c = null;
switch (colorType) {
case COLOR:
case COLOR | ALPHA:
pngassert(len == 6);
c = new Color(buf[st] & 0xff, buf[st + 2] & 0xff, buf[st + 4] & 0xff);
break;
case COLOR | PALETTE:
case COLOR | PALETTE | ALPHA:
pngassert(len == 1);
int ix = buf[st] & 0xFF;
pngassert(red_map != null && ix < red_map.length);
c = new Color(red_map[ix] & 0xff, green_map[ix] & 0xff, blue_map[ix] & 0xff);
break;
case GRAY:
case GRAY | ALPHA:
pngassert(len == 2);
int t = buf[st] & 0xFF;
c = new Color(t, t, t);
break;
}
if (c != null) property("background", c);
break;
case cHRMChunk:
property(
"chromaticities",
new Chromaticities(
getInt(st),
getInt(st + 4),
getInt(st + 8),
getInt(st + 12),
getInt(st + 16),
getInt(st + 20),
getInt(st + 24),
getInt(st + 28)));
break;
case gAMAChunk:
if (len != 4) throw new PNGException("bogus gAMA");
gamma = getInt(st);
if (gamma != 100000) property("gamma", gamma / 100000.0f);
break;
case hISTChunk:
break;
case IDATChunk:
return false;
case IENDChunk:
break;
case IHDRChunk:
if (len != 13 || (width = getInt(st)) == 0 || (height = getInt(st + 4)) == 0)
throw new PNGException("bogus IHDR");
bitDepth = getByte(st + 8);
colorType = getByte(st + 9);
compressionMethod = getByte(st + 10);
filterMethod = getByte(st + 11);
interlaceMethod = getByte(st + 12);
/* this is not needed
if(target!=null) target.setDimensions(width,height);
*/
break;
case PLTEChunk:
{
int tsize = len / 3;
red_map = new byte[tsize];
green_map = new byte[tsize];
blue_map = new byte[tsize];
for (int i = 0, j = st; i < tsize; i++, j += 3) {
red_map[i] = buf[j];
green_map[i] = buf[j + 1];
blue_map[i] = buf[j + 2];
}
}
break;
case pHYsChunk:
break;
case sBITChunk:
break;
case tEXtChunk:
int klen = 0;
while (klen < len && buf[st + klen] != 0) klen++;
if (klen < len) {
String tkey = new String(buf, st, klen);
String tvalue = new String(buf, st + klen + 1, len - klen - 1);
property(tkey, tvalue);
}
break;
case tIMEChunk:
property(
"modtime",
new GregorianCalendar(
getShort(st + 0),
getByte(st + 2) - 1,
getByte(st + 3),
getByte(st + 4),
getByte(st + 5),
getByte(st + 6))
.getTime());
break;
case tRNSChunk:
switch (colorType) {
case PALETTE | COLOR:
case PALETTE | COLOR | ALPHA:
int alen = len;
if (red_map != null) alen = red_map.length;
alpha_map = new byte[alen];
System.arraycopy(buf, st, alpha_map, 0, len < alen ? len : alen);
while (--alen >= len) alpha_map[alen] = (byte) 0xFF;
break;
case COLOR: // doesn't deal with 16 bit colors properly
case COLOR | ALPHA: // doesn't deal with 16 bit colors properly
pngassert(len == 6);
if (bitDepth == 16) {
transparentPixel_16 = new byte[6];
for (int i = 0; i < 6; i++) {
transparentPixel_16[i] = (byte) getByte(st + i);
}
} else {
transparentPixel =
((getShort(st + 0) & 0xFF) << 16)
| ((getShort(st + 2) & 0xFF) << 8)
| ((getShort(st + 4) & 0xFF));
}
break;
case GRAY: // doesn't deal with 16 bit colors properly
case GRAY | ALPHA: // doesn't deal with 16 bit colors properly
pngassert(len == 2);
/* REMIND: Discarding the LSB for 16 bit depth here
* means that the all pixels which match the MSB
* will be treated as transparent.
*/
int t = getShort(st);
t = 0xFF & ((bitDepth == 16) ? (t >> 8) : t);
transparentPixel = (t << 16) | (t << 8) | t;
break;
}
break;
case zTXtChunk:
break;
}
return true;
}
/** Exit the program. Exit from the program (if not stand alone) - do no clean-up */
private void appletSystemExit() {
if (factory.isStandalone()) System.exit(0);
}