两个捆绑包之间的OSGi doPrivileged调用

时间:2014-01-09 16:18:21

标签: java osgi blueprint

我在使用OSGi时遇到了问题。

我有什么:

  • 2个简单的捆绑包(捆绑A称为捆绑包B)
  • 蓝图使用
  • OSGi安全使用
  • 这两个捆绑包都是具有所有权限的核心捆绑包
  • 第三方捆绑包没有所有权限,即PropertyPermission(“bla”,“write”)将被拒绝

如前所述,捆绑调用非常简单。 Bundle A调用bundle B.唯一复杂的是,调用是一个doPrivileged调用。

以下场景/示例:

在没有doPrivileged的捆绑A中设置“bla”属性 - >失败(ok)

public void foo() {
 System.setProperty("bla", "blubb"); // throws java.security.AccessControlException: access denied ("java.util.PropertyPermission" "bla" "write") -> ok
}

使用doPrivileged - >在包A中设置“bla”属性工作(好)

public void foo() {
 AccessController.doPrivileged(new PrivilegedExceptionAction<Boolean>() {
    @Override
    public Boolean run()
       throws Exception
    {
       System.setProperty("bla", "blubb"); // sets the bla property without throwing an exception -> ok
       return null;
    }
 });
}

现在尝试使用bundle A的doPrivileged调用设置bundle B中的“bla”属性 - &gt;失败(为什么?)

捆绑A:

public void foo() {
 AccessController.doPrivileged(new PrivilegedExceptionAction<Boolean>() {
    @Override
    public Boolean run()
       throws Exception
    {
       // calls Bundle B
       bundleBService.bar();
       return null;
    }
 });
}

捆绑B:

public void bar() {
  System.setProperty("bla", "blubb"); // throws java.security.AccessControlException: access denied ("java.util.PropertyPermission" "bla" "write")
}

那么为什么它不能使用bundle A的doPrivileged调用在bundle B中设置属性呢?我希望,doPrivileged调用也可以在这里工作。为什么不呢?这是使用蓝图的错吗?如果不将doPrivileged块添加到bundle B的方法中,是否可以解决这个问题?

更新:这是StackTrace:

java.security.AccessControlException: access denied ("java.util.PropertyPermission" "bla" "write")
    at java.security.AccessControlContext.checkPermission(AccessControlContext.java:372)
    at java.security.AccessController.checkPermission(AccessController.java:559)
    at java.lang.SecurityManager.checkPermission(SecurityManager.java:549)
    at java.lang.System.setProperty(System.java:782)
    at barpkg.BundleB.bar(BundleB.java:35)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:54)
    at org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:119)
    at com.sun.proxy.$Proxy111.bar(Unknown Source)
    at foopkg.BundleA$1.run(BundleA.java:73)
    at foopkg.BundleA$1.run(BundleA.java:65)
    at java.security.AccessController.doPrivileged(Native Method)
    at foopkg.BundleA.foo(BundleA.java:65)
    at testpkg.PrivilegedTest.testDoPrivileged(PrivilegedTest.java:135)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.ops4j.pax.exam.invoker.junit.internal.ContainerTestRunner.runChild(ContainerTestRunner.java:67)
    at org.ops4j.pax.exam.invoker.junit.internal.ContainerTestRunner.runChild(ContainerTestRunner.java:37)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:138)
    at org.ops4j.pax.exam.invoker.junit.internal.JUnitProbeInvoker.invokeViaJUnit(JUnitProbeInvoker.java:111)
    at org.ops4j.pax.exam.invoker.junit.internal.JUnitProbeInvoker.findAndInvoke(JUnitProbeInvoker.java:84)
    at org.ops4j.pax.exam.invoker.junit.internal.JUnitProbeInvoker.call(JUnitProbeInvoker.java:72)
    at org.ops4j.pax.exam.glassfish.GlassFishTestContainer.call(GlassFishTestContainer.java:271)
    at org.ops4j.pax.exam.spi.reactors.SingletonStagedReactor.invoke(SingletonStagedReactor.java:113)
    at org.ops4j.pax.exam.spi.reactors.PerSuiteStagedReactor.invoke(PerSuiteStagedReactor.java:47)
    at org.ops4j.pax.exam.junit.PaxExam$2.evaluate(PaxExam.java:294)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.ops4j.pax.exam.junit.PaxExam.run(PaxExam.java:111)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:242)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:137)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
    at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
    at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)

我猜,这句话可能是麻烦制造者:

at org.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:54)
at org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:119)
at com.sun.proxy.$Proxy111.bar(Unknown Source)

我会尝试在不使用蓝图的情况下进行此调用,看看会发生什么。 但如果蓝图是问题,我可以以某种方式处理它而不替换它吗?

谢谢

1 个答案:

答案 0 :(得分:1)

好吧现在也可以使用aries蓝图框架。

我手动签署了aries blueprint,proxy和utils jars(因此它们也是核心包),看看这是否可以解决问题。工作得很好。

我现在将创建一个maven模块,在那里我将放置我需要的所有蓝图包。所以我可以签署这个捆绑包,不需要单独签署每个jar,也只需要一个捆绑包我需要部署。