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*
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* 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).
*
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package jdk.nashorn.internal.runtime.test;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import javax.script.SimpleScriptContext;
import jdk.nashorn.api.scripting.ClassFilter;
import jdk.nashorn.api.scripting.NashornScriptEngineFactory;
import jdk.nashorn.internal.runtime.Version;
import org.testng.annotations.Test;
/**
* Tests for trusted client usage of nashorn script engine factory extension API
*/
@SuppressWarnings("javadoc")
public class TrustedScriptEngineTest {
@Test
public void versionTest() {
final ScriptEngineManager m = new ScriptEngineManager();
final ScriptEngine e = m.getEngineByName("nashorn");
assertEquals(e.getFactory().getEngineVersion(), Version.version());
}
private static class MyClassLoader extends ClassLoader {
// to check if script engine uses the specified class loader
private final boolean[] reached = new boolean[1];
@Override
protected Class<?> findClass(final String name) throws ClassNotFoundException {
// flag that it reached here
reached[0] = true;
return super.findClass(name);
}
public boolean reached() {
return reached[0];
}
}
// These are for "private" extension API of NashornScriptEngineFactory that
// accepts a ClassLoader and/or command line options.
@Test
public void factoryClassLoaderTest() {
final ScriptEngineManager sm = new ScriptEngineManager();
for (final ScriptEngineFactory fac : sm.getEngineFactories()) {
if (fac instanceof NashornScriptEngineFactory) {
final NashornScriptEngineFactory nfac = (NashornScriptEngineFactory)fac;
final MyClassLoader loader = new MyClassLoader();
// set the classloader as app class loader
final ScriptEngine e = nfac.getScriptEngine(loader);
try {
e.eval("Packages.foo");
// check that the class loader was attempted
assertTrue(loader.reached(), "did not reach class loader!");
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
return;
}
}
fail("Cannot find nashorn factory!");
}
@Test
public void factoryClassLoaderAndOptionsTest() {
final ScriptEngineManager sm = new ScriptEngineManager();
for (final ScriptEngineFactory fac : sm.getEngineFactories()) {
if (fac instanceof NashornScriptEngineFactory) {
final NashornScriptEngineFactory nfac = (NashornScriptEngineFactory)fac;
final String[] options = new String[] { "-strict" };
final MyClassLoader loader = new MyClassLoader();
// set the classloader as app class loader
final ScriptEngine e = nfac.getScriptEngine(options, loader);
try {
e.eval("Packages.foo");
// check that the class loader was attempted
assertTrue(loader.reached(), "did not reach class loader!");
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
try {
// strict mode - delete of a var should throw SyntaxError
e.eval("var d = 2; delete d;");
} catch (final ScriptException se) {
// check that the error message contains "SyntaxError"
assertTrue(se.getMessage().contains("SyntaxError"));
}
return;
}
}
fail("Cannot find nashorn factory!");
}
@Test
public void factoryOptionsTest() {
final ScriptEngineManager sm = new ScriptEngineManager();
for (final ScriptEngineFactory fac : sm.getEngineFactories()) {
if (fac instanceof NashornScriptEngineFactory) {
final NashornScriptEngineFactory nfac = (NashornScriptEngineFactory)fac;
// specify --no-syntax-extensions flag
final String[] options = new String[] { "--no-syntax-extensions" };
final ScriptEngine e = nfac.getScriptEngine(options);
try {
// try nashorn specific extension
e.eval("var f = funtion(x) 2*x;");
fail("should have thrown exception!");
} catch (final Exception ex) {
//empty
}
return;
}
}
fail("Cannot find nashorn factory!");
}
@Test
/**
* Test repeated evals with --loader-per-compile=false
* We used to get "class redefinition error".
*/
public void noLoaderPerCompilerTest() {
final ScriptEngineManager sm = new ScriptEngineManager();
for (final ScriptEngineFactory fac : sm.getEngineFactories()) {
if (fac instanceof NashornScriptEngineFactory) {
final NashornScriptEngineFactory nfac = (NashornScriptEngineFactory)fac;
final String[] options = new String[] { "--loader-per-compile=false" };
final ScriptEngine e = nfac.getScriptEngine(options);
try {
e.eval("2 + 3");
e.eval("4 + 4");
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
return;
}
}
fail("Cannot find nashorn factory!");
}
@Test
/**
* Test that we can use same script name in repeated evals with --loader-per-compile=false
* We used to get "class redefinition error" as name was derived from script name.
*/
public void noLoaderPerCompilerWithSameNameTest() {
final ScriptEngineManager sm = new ScriptEngineManager();
for (final ScriptEngineFactory fac : sm.getEngineFactories()) {
if (fac instanceof NashornScriptEngineFactory) {
final NashornScriptEngineFactory nfac = (NashornScriptEngineFactory)fac;
final String[] options = new String[] { "--loader-per-compile=false" };
final ScriptEngine e = nfac.getScriptEngine(options);
e.put(ScriptEngine.FILENAME, "test.js");
try {
e.eval("2 + 3");
e.eval("4 + 4");
} catch (final ScriptException se) {
se.printStackTrace();
fail(se.getMessage());
}
return;
}
}
fail("Cannot find nashorn factory!");
}
@Test
public void globalPerEngineTest() throws ScriptException {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
final String[] options = new String[] { "--global-per-engine" };
final ScriptEngine e = fac.getScriptEngine(options);
e.eval("function foo() {}");
final ScriptContext newCtx = new SimpleScriptContext();
newCtx.setBindings(e.createBindings(), ScriptContext.ENGINE_SCOPE);
// all global definitions shared and so 'foo' should be
// visible in new Bindings as well.
assertTrue(e.eval("typeof foo", newCtx).equals("function"));
e.eval("function bar() {}", newCtx);
// bar should be visible in default context
assertTrue(e.eval("typeof bar").equals("function"));
}
@Test
public void classFilterTest() throws ScriptException {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
final ScriptEngine e = fac.getScriptEngine(new ClassFilter() {
@Override
public boolean exposeToScripts(final String fullName) {
// don't allow anything that is not "java."
return fullName.startsWith("java.");
}
});
assertEquals(e.eval("typeof javax.script.ScriptEngine"), "object");
assertEquals(e.eval("typeof java.util.Vector"), "function");
try {
e.eval("Java.type('javax.script.ScriptContext')");
fail("should not reach here");
} catch (final ScriptException | RuntimeException se) {
if (! (se.getCause() instanceof ClassNotFoundException)) {
fail("ClassNotFoundException expected");
}
}
}
@Test
public void classFilterTest2() throws ScriptException {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
final ScriptEngine e = fac.getScriptEngine(new String[0], Thread.currentThread().getContextClassLoader(),
new ClassFilter() {
@Override
public boolean exposeToScripts(final String fullName) {
// don't allow anything that is not "java."
return fullName.startsWith("java.");
}
});
assertEquals(e.eval("typeof javax.script.ScriptEngine"), "object");
assertEquals(e.eval("typeof java.util.Vector"), "function");
try {
e.eval("Java.type('javax.script.ScriptContext')");
fail("should not reach here");
} catch (final ScriptException | RuntimeException se) {
if (! (se.getCause() instanceof ClassNotFoundException)) {
fail("ClassNotFoundException expected");
}
}
}
@Test
public void nullClassFilterTest() {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
try {
fac.getScriptEngine((ClassFilter)null);
fail("should have thrown NPE");
} catch (final NullPointerException e) {
//empty
}
}
@Test
public void nullClassFilterTest2() {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
try {
fac.getScriptEngine(new String[0], null, null);
fail("should have thrown NPE");
} catch (final NullPointerException e) {
//empty
}
}
@Test
public void nullArgsTest() {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
try {
fac.getScriptEngine((String[])null);
fail("should have thrown NPE");
} catch (final NullPointerException e) {
//empty
}
}
@Test
public void nullArgsTest2() {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
try {
fac.getScriptEngine(null, null, new ClassFilter() {
@Override
public boolean exposeToScripts(final String name) {
return true;
}
});
fail("should have thrown NPE");
} catch (final NullPointerException e) {
//empty
}
}
@Test
public void nashornSwallowsConstKeyword() throws Exception {
final NashornScriptEngineFactory f = new NashornScriptEngineFactory();
final String[] args = new String[] { "--const-as-var" };
final ScriptEngine engine = f.getScriptEngine(args);
final Object ret = engine.eval(""
+ "(function() {\n"
+ " const x = 10;\n"
+ " return x;\n"
+ "})();"
);
assertEquals(ret, 10, "Parsed and executed OK");
}
@Test
public void evalDefaultFileNameTest() throws ScriptException {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
final ScriptEngine engine = fac.getScriptEngine(new String[] { "--verify-code=true" });
// default FILENAME being "<eval>" make sure generated code bytecode verifies.
engine.eval("var a = 3;");
}
@Test
public void evalFileNameWithSpecialCharsTest() throws ScriptException {
final NashornScriptEngineFactory fac = new NashornScriptEngineFactory();
final ScriptEngine engine = fac.getScriptEngine(new String[] { "--verify-code=true" });
final ScriptContext ctxt = new SimpleScriptContext();
// use file name with "dangerous" chars.
ctxt.setAttribute(ScriptEngine.FILENAME, "<myscript>", ScriptContext.ENGINE_SCOPE);
engine.eval("var a = 3;");
ctxt.setAttribute(ScriptEngine.FILENAME, "[myscript]", ScriptContext.ENGINE_SCOPE);
engine.eval("var h = 'hello';");
ctxt.setAttribute(ScriptEngine.FILENAME, ";/\\$.", ScriptContext.ENGINE_SCOPE);
engine.eval("var foo = 'world';");
// name used by jjs shell tool for the interactive mode
ctxt.setAttribute(ScriptEngine.FILENAME, "<shell>", ScriptContext.ENGINE_SCOPE);
engine.eval("var foo = 'world';");
}
}