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applied kappaOne's Permision denied handling 

made some minor cleanup
This commit is contained in:
Brian Matzon 2007-06-11 18:10:19 +00:00
parent 0137cb60db
commit 92edcd850b
1 changed files with 84 additions and 81 deletions
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165
src/java/org/lwjgl/util/applet/AppletLoader.java
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@ -47,7 +47,6 @@ import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.URLConnection;
@ -165,9 +164,6 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
/** urls of the jars to download */
protected URL[] urlList;
/** list of jars to download */
protected String jarList;
/** actual thread that does the loading */
protected Thread loaderThread;
@ -197,6 +193,14 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
"Plese contact support to resolve this issue.",
"<placeholder for error message>"};
/** whether a certificate refused error occured */
protected boolean certificateRefused;
/** error message to display if user refuses to accept certicate*/
protected String[] certificateRefusedMessage = { "Permissions for Applet Refused.",
"Please accept the permissions dialog to allow",
"the applet to continue the loading process."};
/*
* @see java.applet.Applet#init()
*/
@ -223,17 +227,10 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
logo = getImage("/" + getParameter("al_logo"));
progressbar = getImage("/" + getParameter("al_progressbar"));
// jars to load
jarList = getParameter("al_jars");
//sanity check
if(logo == null || progressbar == null) {
fatalErrorOccured("Unable to load logo and progressbar images");
return;
}
// parse the urls for the jars into the url list
loadJarURLs();
}
/*
@ -247,7 +244,7 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
animationThread = new Thread() {
public void run() {
while(state != STATE_DONE) {
while(loaderThread != null) {
repaint();
AppletLoader.this.sleep(100);
}
@ -307,7 +304,7 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
/*
* @see java.awt.Container#paint(java.awt.Graphics)
*/
public final synchronized void paint(Graphics g) {
public synchronized void paint(Graphics g) {
// paint applet if available
if(lwjglApplet != null && state == STATE_DONE) {
@ -337,49 +334,18 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
}
og.setColor(fgColor);
String message = null;
switch (state) {
case STATE_INIT:
message = "Initializing loader";
break;
case STATE_DETERMINING_PACKAGES:
message = "Determining packages to load";
break;
case STATE_CHECKING_CACHE:
message = "Checking cache for existing files";
break;
case STATE_DOWNLOADING:
message = "Downloading packages";
break;
case STATE_EXTRACTING_PACKAGES:
message = "Extracting downloaded packages";
break;
case STATE_UPDATING_CLASSPATH:
message = "Updating classpath";
break;
case STATE_SWITCHING_APPLET:
message = "Switching applet";
break;
case STATE_INITIALIZE_REAL_APPLET:
message = "Initializing real applet";
break;
case STATE_START_REAL_APPLET:
message = "Starting real applet";
break;
case STATE_DONE:
message = "Done loading";
break;
}
String message = getDescriptionForState();
// if we had a failure of some sort, notify the user
if (fatalError) {
genericErrorMessage[genericErrorMessage.length-1] = fatalErrorDescription;
for(int i=0; i<genericErrorMessage.length; i++) {
int messageX = (getWidth() - fm.stringWidth(genericErrorMessage[i])) / 2;
int messageY = (getHeight() - (fm.getHeight() * genericErrorMessage.length)) / 2;
String[] errorMessage = (certificateRefused) ? certificateRefusedMessage : genericErrorMessage;
for(int i=0; i<errorMessage.length; i++) {
int messageX = (getWidth() - fm.stringWidth(errorMessage[i])) / 2;
int messageY = (getHeight() - (fm.getHeight() * errorMessage.length)) / 2;
og.setColor(errorColor);
og.drawString(genericErrorMessage[i], messageX, messageY + i*fm.getHeight());
og.drawString(errorMessage[i], messageX, messageY + i*fm.getHeight());
}
} else {
og.setColor(fgColor);
@ -410,50 +376,78 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
g.drawImage(offscreen, 0, 0, null);
}
/**
* @return string describing the state of the loader
*/
protected String getDescriptionForState() {
switch (state) {
case STATE_INIT:
return "Initializing loader";
case STATE_DETERMINING_PACKAGES:
return "Determining packages to load";
case STATE_CHECKING_CACHE:
return "Checking cache for existing files";
case STATE_DOWNLOADING:
return "Downloading packages";
case STATE_EXTRACTING_PACKAGES:
return "Extracting downloaded packages";
case STATE_UPDATING_CLASSPATH:
return "Updating classpath";
case STATE_SWITCHING_APPLET:
return "Switching applet";
case STATE_INITIALIZE_REAL_APPLET:
return "Initializing real applet";
case STATE_START_REAL_APPLET:
return "Starting real applet";
case STATE_DONE:
return "Done loading";
default:
return "unknown state";
}
}
/**
* Reads list of jars to download and adds the urls to urlList
* also finds out which OS you are on and adds appropriate native
* jar to the urlList
*/
protected void loadJarURLs() {
protected void loadJarURLs() throws Exception {
state = STATE_DETERMINING_PACKAGES;
// jars to load
String jarList = getParameter("al_jars");
StringTokenizer jar = new StringTokenizer(jarList, ", ");
int jarCount = jar.countTokens() + 1;
urlList = new URL[jarCount];
try {
URL path = getCodeBase();
URL path = getCodeBase();
// set jars urls
for (int i = 0; i < jarCount - 1; i++) {
urlList[i] = new URL(path, jar.nextToken());
}
// set jars urls
for (int i = 0; i < jarCount - 1; i++) {
urlList[i] = new URL(path, jar.nextToken());
}
// native jar url
String osName = System.getProperty("os.name");
String nativeJar = null;
// native jar url
String osName = System.getProperty("os.name");
String nativeJar = null;
if (osName.startsWith("Win")) {
nativeJar = getParameter("al_windows");
} else if (osName.startsWith("Linux") || osName.startsWith("FreeBSD") || osName.startsWith("SunOS")) {
nativeJar = getParameter("al_linux");
} else if (osName.startsWith("Mac")) {
nativeJar = getParameter("al_mac");
} else {
fatalErrorOccured("OS (" + osName + ") not supported");
}
if (osName.startsWith("Win")) {
nativeJar = getParameter("al_windows");
} else if (osName.startsWith("Linux") || osName.startsWith("FreeBSD") || osName.startsWith("SunOS")) {
nativeJar = getParameter("al_linux");
} else if (osName.startsWith("Mac")) {
nativeJar = getParameter("al_mac");
} else {
fatalErrorOccured("OS (" + osName + ") not supported");
}
if (nativeJar == null) {
fatalErrorOccured("no lwjgl natives files found");
} else {
urlList[jarCount - 1] = new URL(path, nativeJar);
}
} catch (MalformedURLException e) {
fatalErrorOccured(e.getMessage());
if (nativeJar == null) {
fatalErrorOccured("no lwjgl natives files found");
} else {
urlList[jarCount - 1] = new URL(path, nativeJar);
}
}
@ -478,6 +472,9 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
sleep(2000);
}
// parse the urls for the jars into the url list
loadJarURLs();
// get path where applet will be stored
String path = (String) AccessController.doPrivileged(new PrivilegedExceptionAction() {
public Object run() throws Exception {
@ -542,10 +539,12 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
state = STATE_DONE;
} catch (AccessControlException ace) {
fatalErrorOccured(ace.getMessage());
certificateRefused = true;
} catch (Exception e) {
fatalErrorOccured(e.getMessage());
} finally {
loaderThread = null;
repaint();
}
}
@ -797,6 +796,10 @@ public class AppletLoader extends Applet implements Runnable, AppletStub {
subtaskMessage = "";
jarFile.close();
// delete native jar as it is no longer needed
File f = new File(path + nativeJar);
f.delete();
}
/**