/*
* Check whether the resource URL should be returned.
* Return null on security check failure.
* Called by java.net.URLClassLoader.
*/
public URL checkURL(URL url) {
try {
check(url);
} catch (Exception e) {
return null;
}
return url;
}
/*
* Creates the resource and if the check flag is set to true, checks if
* is its okay to return the resource.
*/
Resource checkResource(final String name, boolean check, final JarEntry entry) {
final URL url;
try {
url = new URL(getBaseURL(), name);
if (check) {
URLClassPath.check(url);
}
} catch (MalformedURLException e) {
return null;
// throw new IllegalArgumentException("name");
} catch (IOException e) {
return null;
} catch (AccessControlException e) {
return null;
}
return new Resource() {
public String getName() {
return name;
}
public URL getURL() {
return url;
}
public URL getCodeSourceURL() {
return csu;
}
public InputStream getInputStream() throws IOException {
return jar.getInputStream(entry);
}
public int getContentLength() {
return (int) entry.getSize();
}
public Manifest getManifest() throws IOException {
return jar.getManifest();
};
public Certificate[] getCertificates() {
return entry.getCertificates();
};
};
}
Resource getResource(final String name, boolean check) {
final URL url;
try {
URL normalizedBase = new URL(getBaseURL(), ".");
url = new URL(getBaseURL(), name);
if (url.getFile().startsWith(normalizedBase.getFile()) == false) {
// requested resource had ../..'s in path
return null;
}
if (check) URLClassPath.check(url);
final File file = new File(dir, name.replace('/', File.separatorChar));
if (file.exists()) {
return new Resource() {
public String getName() {
return name;
};
public URL getURL() {
return url;
};
public URL getCodeSourceURL() {
return getBaseURL();
};
public InputStream getInputStream() throws IOException {
return new FileInputStream(file);
};
public int getContentLength() throws IOException {
return (int) file.length();
};
};
}
} catch (Exception e) {
return null;
}
return null;
}
Resource getResource(final String name, boolean check) {
final URL url;
try {
url = new URL(base, name);
} catch (MalformedURLException e) {
throw new IllegalArgumentException("name");
}
final URLConnection uc;
try {
if (check) {
URLClassPath.check(url);
}
uc = url.openConnection();
InputStream in = uc.getInputStream();
} catch (Exception e) {
return null;
}
return new Resource() {
public String getName() {
return name;
}
public URL getURL() {
return url;
}
public URL getCodeSourceURL() {
return base;
}
public InputStream getInputStream() throws IOException {
return uc.getInputStream();
}
public int getContentLength() throws IOException {
return uc.getContentLength();
}
};
}
URL findResource(final String name, boolean check) {
URL url;
try {
url = new URL(base, name);
} catch (MalformedURLException e) {
throw new IllegalArgumentException("name");
}
try {
if (check) {
URLClassPath.check(url);
}
// our best guess for the other cases
InputStream is = url.openStream();
is.close();
return url;
} catch (Exception e) {
return null;
}
}