[ 
https://issues.apache.org/jira/browse/NIFI-8684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jul Tomten updated NIFI-8684:
-----------------------------
    Component/s: Extensions

> sensitive property not working for InvokeScriptedProcessor
> ----------------------------------------------------------
>
>                 Key: NIFI-8684
>                 URL: https://issues.apache.org/jira/browse/NIFI-8684
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Extensions
>    Affects Versions: 1.13.2
>            Reporter: Jul Tomten
>            Priority: Major
>
> I use InvokeScriptedProcessor
> I'm trying to read a sensitive property from the process context
>  
> before restarting NiFi it was working fine
> after restarting  NiFi - NiFi fails to startup with the error below
>  
>  
> 2021-06-11 11:22:09,673 WARN [main] org.apache.nifi.web.server.JettyServer 
> Failed to start web server... shutting down.
>  org.apache.nifi.controller.serialization.FlowSynchronizationException: 
> java.lang.IllegalArgumentException: The property 'Password3' cannot reference 
> Parameter 'password3' because Sensitive Parameters may only be referenced by 
> Sensitive Properties.
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:306)
>  at 
> org.apache.nifi.controller.FlowController.synchronize(FlowController.java:1413)
>  at 
> org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.load(StandardXMLFlowConfigurationDAO.java:89)
>  at 
> org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:810)
>  at 
> org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:539)
>  at 
> org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextInitialized(ApplicationStartupContextListener.java:72)
>  at 
> org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:1068)
>  at 
> org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:572)
>  at 
> org.eclipse.jetty.server.handler.ContextHandler.contextInitialized(ContextHandler.java:997)
>  at 
> org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:746)
>  at 
> org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
>  at 
> org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
>  at 
> org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
>  at 
> org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:911)
>  at 
> org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
>  at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
>  at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
>  at 
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
>  at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
>  at 
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
>  at 
> org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:426)
>  at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
>  at 
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
>  at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
>  at 
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
>  at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
>  at org.eclipse.jetty.server.Server.start(Server.java:423)
>  at 
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
>  at 
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
>  at org.eclipse.jetty.server.Server.doStart(Server.java:387)
>  at 
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
>  at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:1057)
>  at org.apache.nifi.NiFi.<init>(NiFi.java:159)
>  at org.apache.nifi.NiFi.<init>(NiFi.java:71)
>  at org.apache.nifi.NiFi.main(NiFi.java:303)
>  Caused by: java.lang.IllegalArgumentException: The property 'Password3' 
> cannot reference Parameter 'password3' because Sensitive Parameters may only 
> be referenced by Sensitive Properties.
>  at 
> org.apache.nifi.controller.AbstractComponentNode.verifyCanUpdateProperties(AbstractComponentNode.java:313)
>  at 
> org.apache.nifi.controller.AbstractComponentNode.setProperties(AbstractComponentNode.java:198)
>  at 
> org.apache.nifi.controller.ComponentNode.setProperties(ComponentNode.java:61)
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.updateProcessor(StandardFlowSynchronizer.java:1249)
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.addProcessors(StandardFlowSynchronizer.java:1398)
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1317)
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.addNestedProcessGroups(StandardFlowSynchronizer.java:1333)
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1322)
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.updateFlow(StandardFlowSynchronizer.java:432)
>  at 
> org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:283)
>  ... 43 common frames omitted
>  
> in flow.xml.gz
>  
> <parameterContext>
>  <id>f8098456-0179-1000-40b0-ba2fcee07a72</id>
>  <name>otto_test</name>
>  <description/>
>  <parameter>
>  <name>password</name>
>  <description/>
>  <sensitive>true</sensitive>
>  
> <value>enc\{61d12bbcfe272e47e344cb7d3ee04ff68d2ca5b9a2ecfae2bf2f42e1eb2e6230}</value>
>  </parameter>
>  <parameter>
>  <name>password3</name>
>  <description/>
>  <sensitive>true</sensitive>
>  
> <value>enc\{6ee4436cc391ac9a0cb567a3f7a7c26155b4b353152b52325f67eafa6b106c0b}</value>
>  </parameter>
>  </parameterContext>
>  
>  
>  
>  
> <processor>
>  <id>f7bd4a82-0179-1000-484a-eb7fbafde530</id>
>  <name>InvokeScriptedProcessor2</name>
>  <position x="-1144.0" y="3640.0"/>
>  <styles/>
>  <comment/>
>  <class>org.apache.nifi.processors.script.InvokeScriptedProcessor</class>
>  <bundle>
>  <group>org.apache.nifi</group>
>  <artifact>nifi-scripting-nar</artifact>
>  <version>1.13.2</version>
>  </bundle>
>  <maxConcurrentTasks>1</maxConcurrentTasks>
>  <schedulingPeriod>0 sec</schedulingPeriod>
>  <penalizationPeriod>30 sec</penalizationPeriod>
>  <yieldPeriod>1 sec</yieldPeriod>
>  <bulletinLevel>WARN</bulletinLevel>
>  <lossTolerant>false</lossTolerant>
>  <scheduledState>RUNNING</scheduledState>
>  <schedulingStrategy>TIMER_DRIVEN</schedulingStrategy>
>  <executionNode>ALL</executionNode>
>  <runDurationNanos>0</runDurationNanos>
>  <property>
>  <name>Script Engine</name>
>  <value>ECMAScript</value>
>  </property>
>  <property>
>  <name>Script File</name>
>  </property>
>  <property>
>  <name>Script Body</name>
>  
> <value>//[http://funnifi.blogspot.com/2018/02/invokescriptedprocessor-template.html]
>  
> //[http://funnifi.blogspot.com/2016/02/writing-reusable-scripted-processors-in.html]
>  
> //[http://funnifi.blogspot.com/2016/02/invokescriptedprocessor-hello-world.html]
>  
> //[https://www.javadoc.io/static/org.apache.nifi/nifi-api/1.13.2/index.html?org/apache/nifi/processor/package-summary.html]
>  
> //[https://www.javadoc.io/static/org.apache.nifi/nifi-api/1.13.2/index.html?org/apache/nifi/processor/ProcessSession.html]
>  
> //[https://www.javadoc.io/static/org.apache.nifi/nifi-api/1.13.2/org/apache/nifi/components/PropertyValue.html]
>  
> //[https://www.javadoc.io/static/org.apache.nifi/nifi-api/1.13.2/org/apache/nifi/context/package-frame.html]
> ///////////////////////////////////////////////////////////
>  // "imports" go here
>  ////////////////////////////////////////////////////////////
> var StreamCallback = Java.type("org.apache.nifi.processor.io.StreamCallback");
>  var IOUtils = Java.type("org.apache.commons.io.IOUtils");
>  var StandardCharsets = Java.type("java.nio.charset.StandardCharsets");
> var Processor = Java.type("org.apache.nifi.processor.Processor");
>  var Relationship = Java.type("org.apache.nifi.processor.Relationship");
>  var StandardValidators = 
> Java.type("org.apache.nifi.processor.util.StandardValidators");
>  var Validator = Java.type("org.apache.nifi.components.Validator");
>  org.apache.nifi.components
> var HashSet = Java.type("java.util.HashSet");
>  var LinkedList = Java.type("java.util.LinkedList");
> var PropertyDescriptorBuilder = 
> Java.type("org.apache.nifi.components.PropertyDescriptor.Builder");
> var log = null;
>  var REL_SUCCESS = new 
> Relationship.Builder().name("success").description('FlowFiles that were 
> successfully processed are routed here').build();
>  var REL_FAILURE = new 
> Relationship.Builder().name("failure").description('FlowFiles that were not 
> successfully processed are routed here').build();
> var strPassword2 = "Password2";
>  var prop_password2 = new PropertyDescriptorBuilder().name(strPassword2)
>  .description("Password used to connect")
>  .required(true)
>  //.sensitive(false)
>  //.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
>  .expressionLanguageSupported(true)
>  .addValidator(Validator.VALID)
>  .build();
>  var strPassword3 = "Password3";
>  var prop_password3 = new PropertyDescriptorBuilder().name(strPassword3)
>  .description("Password used to connect")
>  .required(true)
>  .sensitive(true)
>  // //.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
>  .expressionLanguageSupported(false)
>  .addValidator(Validator.VALID)
>  .build();
> function executeScript(session, context, log, REL_SUCCESS, REL_FAILURE) {
>  ////////////////////////////////////////////////////////////
>  // your code goes here
>  ////////////////////////////////////////////////////////////
>  var pwd2 = context.getProperty(strPassword2).getValue();
>  var pwd3 = context.getProperty(strPassword3).getValue();
>  var pwd31 = 
> context.getProperty(strPassword3).evaluateAttributeExpressions().getValue();
> log.error('pwd2:'+ pwd2);
>  log.error('pwd3:'+ pwd3);
>  var flowFile = session.get();
>  if(flowFile != null) {
> if(flowFile != null) {
>  // Create a new StreamCallback, passing in a function to define the 
> interface method
>  flowFile = session.write(flowFile,
>  new StreamCallback(function(inputStream, outputStream)
> { var text = IOUtils.toString(inputStream, StandardCharsets.UTF_8); 
> outputStream.write(text.split("").reverse().join("").getBytes(StandardCharsets.UTF_8));
>  outputStream.write("\npwd2:".getBytes()); 
> outputStream.write(pwd2.getBytes()); // 
> outputStream.write("\npwd3:".getBytes()); // 
> outputStream.write(pwd3.getBytes()); // 
> outputStream.write("\n31:".getBytes()); // 
> outputStream.write(pwd31.getBytes()); outputStream.write("\n".getBytes()); }
> ));
>  }
>  try
> { session.transfer(flowFile, REL_SUCCESS) }
> catch(e)
> { log.error('Something went wrong', e) session.transfer(flowFile, 
> REL_FAILURE) }
> }
> function initialize(context) \{ log = context.logger; }
>  function getRelationships()
> { var r = new HashSet(); r.add(REL_FAILURE); r.add(REL_SUCCESS); return r; }
> function validate(context) \{ return null; }
>  function getPropertyDescriptor(name) {
>  if(name.equals(strPassword2))
> { return prop_password2; }
> else if(name.equals(strPassword3))
> { return prop_password3; }
> else
> { return null; }
> }
>  function onPropertyModified(descriptor, oldValue, newValue) \{ return null; }
>  function getPropertyDescriptors()
> { var r = new LinkedList(); r.add(prop_password2); r.add(prop_password3); 
> return r; //return null; }
> function getIdentifier() \{ return null; }
>  function onTrigger(context, sessionFactory) {
>  var session = sessionFactory.createSession();
>  try
> { executeScript(session, context, log, REL_SUCCESS, REL_FAILURE); 
> session.commit(); }
> catch (t) {
>  log.error("{} failed to process due to {}; rolling back session", 
> Java.to([this, t], "java.lang.Object[]"));
>  session.rollback(true);
>  throw t;
>  }
>  }
> processor = this;</value>
>  </property>
>  <property>
>  <name>Module Directory</name>
>  </property>
>  <property>
>  <name>Password2</name>
>  <value>xyz</value>
>  </property>
>  <property>
>  <name>Password3</name>
>  
> <value>enc\{da09776f7e7ffda657ddff989489c93cae2821b8a1fcded6d2d4d5c1964187da}</value>
>  </property>
>  </processor>
>  
>  
> Many thanks to mburgess the cookbook author.
> I'm new to NiFi so sorry if I've simply made a programming error.
>  It seems like I'm not the only one with the similar problem.
> I try to createa flow that login to provenance repository in a NiFi with LDAP 
> using the InvokeHttp in a later step. To login I need to fetch a token and 
> then call the call the provenanc repo REST apis. When fetching the token I 
> want to hide tha password. Maybe there is a better way. I also would like to 
> store the token in a secure way and not store it as attribute.
> [https://host:port/nifi-api/access/token] POST 
>  This endpoint only supports form based authentication but if it supported 
> basic authentcation too it would be simpler becasue then the InvokeHttp 
> processor could access it and the password would be hidden by sensitive 
> property. It doesn't help to actually hide the token in the flow. Howdo you 
> store sensitve values at attribute in the flow? Maybe it is wrong thinking to 
> do so.
> It seems like many are struggling with oAuth2 token based authentication as 
> well. client credentials grant and password credentials grant and so on. 
> Havne't found any cookbook for that.
>  
>  
>  
>  



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