Jasne takhle nejak sem si to predstavoval, diky.
Kdekdo tady propaguje to acegi, mohli byste mi ukazat jak by to zhruba
vypadalo v acegi?
At vim pro co se mam rozhodnout :)
----- Original Message -----
From: "Martin Krajci" <[EMAIL PROTECTED]>
To: "Java" <konference@java.cz>
Sent: Thursday, July 20, 2006 3:21 PM
Subject: Re: security
Dobry den,
Skusil som to nacrtnut ako by to mohlo byt riesene cez reflection API, ale
pripominam ze trebalo by tam viacej veci podotahovat, hlavne teda krajsie
vytvaranie instancii (Foo) a implementovat isUserInRole, ale princip je
tam zachyteny.
Osobne by som sa priklonil za to Acegi ako sme to tu uz viac krat
spominali.
<code>
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
public class MethodInvoker
{
public static void main(String[] argv) {
MethodInvoker mi = new MethodInvoker();
mi.test();
}
public void test()
{
InvocationHandler handler = new FacadeInvocationHandler(new Foo());
IFoo f = (IFoo) Proxy.newProxyInstance(Foo.class.getClassLoader(), new
Class[] { IFoo.class }, handler);
f.call();
}
/**
* Very simple facade which delegates all calls to a target object.
*/
private static class FacadeInvocationHandler implements InvocationHandler
{
Object facaded;
public FacadeInvocationHandler(Object facaded)
{
this.facaded = facaded;
}
public Object invoke(Object proxy, Method method, Object[] args) throws
Throwable
{ if(isUserInRole()) {
return method.invoke(facaded, args); } else {
return null;
}
}
}
private static boolean isUserInRole() {
return true;
}
interface IFoo {
public void call();
}
class Foo implements IFoo
{
public void call() {
System.out.print("Called");
} }
} </code>
Martin Krajci
Kamzik-II wrote:
Mohl byste uvest nejaky priklad?
Tohle reseni by mozna bylo ono, ale
nedovedu si predstavit realizaci, jak by to zhruba fungovalo?
----- Original Message -----
From: "Martin Krajci" <[EMAIL PROTECTED]>
To: "Java" <konference@java.cz>
Sent: Thursday, July 20, 2006 1:19 PM
Subject: Re: security
Dobry den,
Nie som si isty ci JEE alebo JSE nieco maju, ale vsak si to mozete sam
naprogramovat pomocou java reflection API.
Martin Krajci
Kamzik-II wrote:
Takze bez nejakeho frameworku treti strany to nejde?
----- Original Message -----
From: "Martin Krajci" <[EMAIL PROTECTED]>
To: "Java" <konference@java.cz>
Sent: Thursday, July 20, 2006 10:43 AM
Subject: Re: security
Dobry den,
Pozrite si http://www.acegisecurity.org/ a konkretne 'method
invocation
security'. Acegi sa da pouzit aj bez Springu aby ste toho nemali na
zaciatok moc.
Martin Krajci
Kamzik-II wrote:
Zdravicko lidi,
Potreboval byh poradit :)
Rekneme, ze mam tridu "Xyz", která
obsahuje mimo jiné i metodu "necoUdelej".
Treba takhle:
public class Xyz
{
public void necoUdelej ()
{
System.out.println ( "Hotovo" );
}
}
A potreboval bych nejak zajistit, aby se ta metoda provedla
jenom pokud je pouzita v aplikaci, ktera je spustena, s nejakymi
pravy, jinak aby vyhodila SecurityException...
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