changeset 1928:c8fb7e11daf8

6902678: com.sun.tracing.ProviderFactory.createProvider doesn't throw IllegalArgumentException Summary: doPrivileged for calls that have permission check instead of catching all exceptions Reviewed-by: kamg, dcubed
author mchung
date Wed, 18 Nov 2009 22:29:16 -0800
parents 5ac84cf85a24
children ca026eb5cf3c
files src/share/classes/com/sun/tracing/ProviderFactory.java src/share/classes/sun/tracing/MultiplexProviderFactory.java src/share/classes/sun/tracing/NullProviderFactory.java src/share/classes/sun/tracing/PrintStreamProviderFactory.java src/share/classes/sun/tracing/ProviderSkeleton.java src/share/classes/sun/tracing/dtrace/DTraceProviderFactory.java test/com/sun/tracing/BasicWithSecurityMgr.java
diffstat 7 files changed, 188 insertions(+), 56 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/classes/com/sun/tracing/ProviderFactory.java	Wed Nov 18 11:15:12 2009 -0800
+++ b/src/share/classes/com/sun/tracing/ProviderFactory.java	Wed Nov 18 22:29:16 2009 -0800
@@ -4,7 +4,10 @@
 import java.util.HashSet;
 import java.io.PrintStream;
 import java.lang.reflect.Field;
-import java.util.logging.Logger;
+import java.security.AccessController;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import sun.security.action.GetPropertyAction;
 
 import sun.tracing.NullProviderFactory;
 import sun.tracing.PrintStreamProviderFactory;
@@ -52,23 +55,17 @@
         HashSet<ProviderFactory> factories = new HashSet<ProviderFactory>();
 
         // Try to instantiate a DTraceProviderFactory
-        String prop = null;
-        try { prop = System.getProperty("com.sun.tracing.dtrace"); }
-        catch (java.security.AccessControlException e) {
-            Logger.getAnonymousLogger().fine(
-                "Cannot access property com.sun.tracing.dtrace");
-        }
+        String prop = AccessController.doPrivileged(
+            new GetPropertyAction("com.sun.tracing.dtrace"));
+
         if ( (prop == null || !prop.equals("disable")) &&
              DTraceProviderFactory.isSupported() ) {
             factories.add(new DTraceProviderFactory());
         }
 
         // Try to instantiate an output stream factory
-        try { prop = System.getProperty("sun.tracing.stream"); }
-        catch (java.security.AccessControlException e) {
-            Logger.getAnonymousLogger().fine(
-                "Cannot access property sun.tracing.stream");
-        }
+        prop = AccessController.doPrivileged(
+            new GetPropertyAction("sun.tracing.stream"));
         if (prop != null) {
             for (String spec : prop.split(",")) {
                 PrintStream ps = getPrintStreamFromSpec(spec);
@@ -89,22 +86,29 @@
         }
     }
 
-    private static PrintStream getPrintStreamFromSpec(String spec) {
+    private static PrintStream getPrintStreamFromSpec(final String spec) {
         try {
             // spec is in the form of <class>.<field>, where <class> is
             // a fully specified class name, and <field> is a static member
             // in that class.  The <field> must be a 'PrintStream' or subtype
             // in order to be used.
-            int fieldpos = spec.lastIndexOf('.');
-            Class<?> cls = Class.forName(spec.substring(0, fieldpos));
-            Field f = cls.getField(spec.substring(fieldpos + 1));
-            Class<?> fieldType = f.getType();
+            final int fieldpos = spec.lastIndexOf('.');
+            final Class<?> cls = Class.forName(spec.substring(0, fieldpos));
+
+            Field f = AccessController.doPrivileged(new PrivilegedExceptionAction<Field>() {
+                public Field run() throws NoSuchFieldException {
+                    return cls.getField(spec.substring(fieldpos + 1));
+                }
+            });
+
             return (PrintStream)f.get(null);
-        } catch (Exception e) {
-            Logger.getAnonymousLogger().warning(
-                "Could not parse sun.tracing.stream property: " + e);
+        } catch (ClassNotFoundException e) {
+            throw new AssertionError(e);
+        } catch (IllegalAccessException e) {
+            throw new AssertionError(e);
+        } catch (PrivilegedActionException e) {
+            throw new AssertionError(e);
         }
-        return null;
     }
 }
 
--- a/src/share/classes/sun/tracing/MultiplexProviderFactory.java	Wed Nov 18 11:15:12 2009 -0800
+++ b/src/share/classes/sun/tracing/MultiplexProviderFactory.java	Wed Nov 18 22:29:16 2009 -0800
@@ -30,7 +30,6 @@
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Set;
-import java.util.logging.Logger;
 
 import com.sun.tracing.ProviderFactory;
 import com.sun.tracing.Provider;
@@ -65,13 +64,7 @@
             providers.add(factory.createProvider(cls));
         }
         MultiplexProvider provider = new MultiplexProvider(cls, providers);
-        try {
-            provider.init();
-        } catch (Exception e) {
-            // Probably a permission problem (can't get declared members)
-            Logger.getAnonymousLogger().warning(
-                "Could not initialize tracing provider: " + e.getMessage());
-        }
+        provider.init();
         return provider.newProxyInstance();
     }
 }
--- a/src/share/classes/sun/tracing/NullProviderFactory.java	Wed Nov 18 11:15:12 2009 -0800
+++ b/src/share/classes/sun/tracing/NullProviderFactory.java	Wed Nov 18 22:29:16 2009 -0800
@@ -26,7 +26,6 @@
 package sun.tracing;
 
 import java.lang.reflect.Method;
-import java.util.logging.Logger;
 
 import com.sun.tracing.ProviderFactory;
 import com.sun.tracing.Provider;
@@ -53,13 +52,7 @@
      */
     public <T extends Provider> T createProvider(Class<T> cls) {
         NullProvider provider = new NullProvider(cls);
-        try {
-            provider.init();
-        } catch (Exception e) {
-            // Probably a permission problem (can't get declared members)
-            Logger.getAnonymousLogger().warning(
-                "Could not initialize tracing provider: " + e.getMessage());
-        }
+        provider.init();
         return provider.newProxyInstance();
     }
 }
--- a/src/share/classes/sun/tracing/PrintStreamProviderFactory.java	Wed Nov 18 11:15:12 2009 -0800
+++ b/src/share/classes/sun/tracing/PrintStreamProviderFactory.java	Wed Nov 18 22:29:16 2009 -0800
@@ -28,7 +28,6 @@
 import java.lang.reflect.Method;
 import java.io.PrintStream;
 import java.util.HashMap;
-import java.util.logging.Logger;
 
 import com.sun.tracing.ProviderFactory;
 import com.sun.tracing.Provider;
@@ -54,13 +53,7 @@
 
     public <T extends Provider> T createProvider(Class<T> cls) {
         PrintStreamProvider provider = new PrintStreamProvider(cls, stream);
-        try {
-            provider.init();
-        } catch (Exception e) {
-            // Probably a permission problem (can't get declared members)
-            Logger.getAnonymousLogger().warning(
-                "Could not initialize tracing provider: " + e.getMessage());
-        }
+        provider.init();
         return provider.newProxyInstance();
     }
 }
--- a/src/share/classes/sun/tracing/ProviderSkeleton.java	Wed Nov 18 11:15:12 2009 -0800
+++ b/src/share/classes/sun/tracing/ProviderSkeleton.java	Wed Nov 18 22:29:16 2009 -0800
@@ -32,6 +32,8 @@
 import java.lang.reflect.AnnotatedElement;
 import java.lang.annotation.Annotation;
 import java.util.HashMap;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
 
 import com.sun.tracing.Provider;
 import com.sun.tracing.Probe;
@@ -99,7 +101,13 @@
      * It is up to the factory implementations to call this after construction.
      */
     public void init() {
-        for (Method m : providerType.getDeclaredMethods()) {
+        Method[] methods = AccessController.doPrivileged(new PrivilegedAction<Method[]>() {
+            public Method[] run() {
+                return providerType.getDeclaredMethods();
+            }
+        });
+
+        for (Method m : methods) {
             if ( m.getReturnType() != Void.TYPE ) {
                 throw new IllegalArgumentException(
                    "Return value of method is not void");
--- a/src/share/classes/sun/tracing/dtrace/DTraceProviderFactory.java	Wed Nov 18 11:15:12 2009 -0800
+++ b/src/share/classes/sun/tracing/dtrace/DTraceProviderFactory.java	Wed Nov 18 22:29:16 2009 -0800
@@ -29,7 +29,6 @@
 import java.util.Set;
 import java.util.HashMap;
 import java.util.HashSet;
-import java.util.logging.Logger;
 import java.security.Permission;
 
 import com.sun.tracing.ProviderFactory;
@@ -80,15 +79,8 @@
         DTraceProvider jsdt = new DTraceProvider(cls);
         T proxy = jsdt.newProxyInstance();
         jsdt.setProxy(proxy);
-        try {
-            jsdt.init();
-            new Activation(jsdt.getModuleName(), new DTraceProvider[] { jsdt });
-        } catch (Exception e) {
-            // Probably a permission problem (can't get declared members)
-            Logger.getAnonymousLogger().warning(
-                "Could not initialize tracing provider: " + e.getMessage());
-            jsdt.dispose();
-        }
+        jsdt.init();
+        new Activation(jsdt.getModuleName(), new DTraceProvider[] { jsdt });
         return proxy;
     }
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/com/sun/tracing/BasicWithSecurityMgr.java	Wed Nov 18 22:29:16 2009 -0800
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug 6899605
+ * @summary Basic unit test for tracing framework with security manager
+ *          enabled
+ */
+
+import com.sun.tracing.*;
+import java.lang.reflect.Method;
+
+@ProviderName("NamedProvider")
+interface BasicProvider extends Provider {
+    void plainProbe();
+    void probeWithArgs(int a, float f, String s, Long l);
+    @ProbeName("namedProbe") void probeWithName();
+    void overloadedProbe();
+    void overloadedProbe(int i);
+}
+
+interface InvalidProvider extends Provider {
+    int nonVoidProbe();
+}
+
+public class BasicWithSecurityMgr {
+
+    public static ProviderFactory factory;
+    public static BasicProvider bp;
+
+    public static void main(String[] args) throws Exception {
+        // enable security manager
+        System.setSecurityManager(new SecurityManager());
+
+        factory = ProviderFactory.getDefaultFactory();
+        if (factory != null) {
+            bp = factory.createProvider(BasicProvider.class);
+        }
+
+        testProviderFactory();
+        testProbe();
+        testProvider();
+    }
+
+    static void fail(String s) throws Exception {
+        throw new Exception(s);
+    }
+
+    static void testProviderFactory() throws Exception {
+        if (factory == null) {
+            fail("ProviderFactory.getDefaultFactory: Did not create factory");
+        }
+        if (bp == null) {
+            fail("ProviderFactory.createProvider: Did not create provider");
+        }
+        try {
+            factory.createProvider(null);
+            fail("ProviderFactory.createProvider: Did not throw NPE for null");
+        } catch (NullPointerException e) {}
+
+       try {
+           factory.createProvider(InvalidProvider.class);
+           fail("Factory.createProvider: Should error with non-void probes");
+       } catch (IllegalArgumentException e) {}
+    }
+
+    public static void testProvider() throws Exception {
+
+       // These just shouldn't throw any exeptions:
+       bp.plainProbe();
+       bp.probeWithArgs(42, (float)3.14, "spam", new Long(2L));
+       bp.probeWithArgs(42, (float)3.14, null, null);
+       bp.probeWithName();
+       bp.overloadedProbe();
+       bp.overloadedProbe(42);
+
+       Method m = BasicProvider.class.getMethod("plainProbe");
+       Probe p = bp.getProbe(m);
+       if (p == null) {
+           fail("Provider.getProbe: Did not return probe");
+       }
+
+       Method m2 = BasicWithSecurityMgr.class.getMethod("testProvider");
+       p = bp.getProbe(m2);
+       if (p != null) {
+           fail("Provider.getProbe: Got probe with invalid spec");
+       }
+
+       bp.dispose();
+       // These just shouldn't throw any exeptions:
+       bp.plainProbe();
+       bp.probeWithArgs(42, (float)3.14, "spam", new Long(2L));
+       bp.probeWithArgs(42, (float)3.14, null, null);
+       bp.probeWithName();
+       bp.overloadedProbe();
+       bp.overloadedProbe(42);
+
+       if (bp.getProbe(m) != null) {
+           fail("Provider.getProbe: Should return null after dispose()");
+       }
+
+       bp.dispose(); // just to make sure nothing bad happens
+    }
+
+    static void testProbe() throws Exception {
+       Method m = BasicProvider.class.getMethod("plainProbe");
+       Probe p = bp.getProbe(m);
+       p.isEnabled(); // just make sure it doesn't do anything bad
+       p.trigger();
+
+       try {
+         p.trigger(0);
+         fail("Probe.trigger: too many arguments not caught");
+       } catch (IllegalArgumentException e) {}
+
+       p = bp.getProbe(BasicProvider.class.getMethod(
+           "probeWithArgs", int.class, float.class, String.class, Long.class));
+       try {
+         p.trigger();
+         fail("Probe.trigger: too few arguments not caught");
+       } catch (IllegalArgumentException e) {}
+
+       try {
+         p.trigger((float)3.14, (float)3.14, "", new Long(0L));
+         fail("Probe.trigger: wrong type primitive arguments not caught");
+       } catch (IllegalArgumentException e) {}
+    }
+}