| Code with Misuse: |
class ProxyFrame {
/**
* Lookup for an proxied resource.
* @param request The request whose URI is to be looked up.
* @param ls The current lookup state
* @param lr The result
* @exception org.w3c.tools.resources.ProtocolException If something fails.
*/
public boolean lookupOther(LookupState ls, LookupResult lr)
throws org.w3c.tools.resources.ProtocolException
{
// Get the full URL from the request:
Request request = (Request) ls.getRequest();
URL requrl = ((request != null)
? request.getURL()
: null);
boolean host_equiv = false;
// loop check
if (request != null) {
String vias[] = request.getVia();
if ((url != null)
&& (requrl.getPort() == url.getPort())
&& (vias != null && vias.length > 5)) {
// maybe a loop, let's try to sort it out with an expensive
// checking on IPs
String hostaddr;
ObservableProperties props = getServer().getProperties();
hostaddr = props.getString(SocketClientFactory.BINDADDR_P,
default_hostaddr);
if (requrl != null) {
InetAddress targhost;
String reqhostaddr;
try {
targhost = InetAddress.getByName(requrl.getHost());
reqhostaddr = targhost.getHostAddress();
host_equiv = reqhostaddr.equals(hostaddr);
} catch (UnknownHostException uhex) {};
}
}
}
if (((url != null)
&& (requrl != null)
&& ((requrl.getPort() == url.getPort()) ||
(requrl.getPort() * url.getPort() == -80))
&& ( host_equiv ||
(requrl.getHost().equalsIgnoreCase(url.getHost()))))
|| (ls.isInternal())) {
// Call super.lookup:
super.lookupOther(ls, lr);
if ( ls.hasMoreComponents() ) {
ResourceReference root = getLocalRootResource();
if ( root == null ) {
lr.setTarget(this.getResource().getResourceReference());
return true;
}
try {
// because the root eats the lookup state components
// we have to return true.
// Should not be continued by the caller.
FramedResource res = (FramedResource)root.lock();
boolean done = res.lookup(ls, lr);
if (! done)
lr.setTarget(null);
return true;
} catch (InvalidResourceException ex) {
// should never happen with the root resource
ex.printStackTrace();
} finally {
root.unlock();
}
return true; // should never be reached
} else {
request.setState(STATE_CONTENT_LOCATION, "true");
// return the index file.
String index = getIndex();
if ( index != null && index.length() > 0) {
ResourceReference root = getLocalRootResource();
try {
DirectoryResource dir =
(DirectoryResource)root.lock();
ResourceReference rr = dir.lookup(index);
if (rr != null) {
try {
FramedResource rindex =
(FramedResource) rr.lock();
return rindex.lookup(ls,lr);
} catch (InvalidResourceException ex) {
} finally {
rr.unlock();
}
}
} catch (InvalidResourceException ex) {
root.unlock();
}
}
lr.setTarget(drr);
return true;
}
} else {
// Always invoke super lookup, after notification that its a proxy
request.setProxy(true);
super.lookupOther(ls, lr);
if ( requrl.getProtocol().equals("ftp") ) {
// if (ftphandler != null)
// lr.setTarget(ftphandler);
// else
lr.setTarget(null);
return true;
} else {
lr.setTarget(this.getResource().getResourceReference());
return true;
}
}
}
}
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