Tellier Benoit created JAMES-2557:
-------------------------------------
Summary: NULL_SENDER throws an error in Dlp
Key: JAMES-2557
URL: https://issues.apache.org/jira/browse/JAMES-2557
Project: James Server
Issue Type: Bug
Components: Mailet Contributions
Affects Versions: master, 3.1.0
Reporter: Tellier Benoit
Fix For: 3.2.0
Watching Kibana logs I got this recurring error:
{code:java}
Exception calling dlp.Dlp: NULL sender '<>' do not have domain part
java.lang.IllegalStateException: NULL sender '<>' do not have domain part
at org.apache.james.core.MailAddress$1.getDomain(MailAddress.java:87)
at org.apache.james.transport.matchers.dlp.Dlp.matchingRule(Dlp.java:76)
at
org.apache.james.transport.matchers.dlp.Dlp.lambda$findFirstMatchingRule$0(Dlp.java:72)
at java.util.Optional.flatMap(Optional.java:241)
at
org.apache.james.transport.matchers.dlp.Dlp.findFirstMatchingRule(Dlp.java:72)
at org.apache.james.transport.matchers.dlp.Dlp.match(Dlp.java:55)
at
org.apache.james.mailetcontainer.impl.camel.MatcherSplitter.split(MatcherSplitter.java:109)
at sun.reflect.GeneratedMethodAccessor70.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.camel.component.bean.MethodInfo.invoke(MethodInfo.java:481)
at
org.apache.camel.component.bean.MethodInfo$1.doProceed(MethodInfo.java:300)
at
org.apache.camel.component.bean.MethodInfo$1.proceed(MethodInfo.java:273)
at
org.apache.camel.component.bean.AbstractBeanProcessor.process(AbstractBeanProcessor.java:187)
at
org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
at
org.apache.camel.component.bean.AbstractBeanProcessor.process(AbstractBeanProcessor.java:70)
at
org.apache.camel.language.bean.BeanExpression.invokeBean(BeanExpression.java:200)
at
org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:124)
at
org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:135)
at
org.apache.camel.processor.Splitter.createProcessorExchangePairs(Splitter.java:127)
at
org.apache.camel.processor.MulticastProcessor.process(MulticastProcessor.java:241)
at org.apache.camel.processor.Splitter.process(Splitter.java:122)
at
org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
at
org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:138)
at org.apache.camel.processor.Pipeline.process(Pipeline.java:101)
at
org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
at
org.apache.camel.component.direct.DirectBlockingProducer.process(DirectBlockingProducer.java:53)
at
org.apache.camel.processor.SharedCamelInternalProcessor.process(SharedCamelInternalProcessor.java:186)
at
org.apache.camel.processor.SharedCamelInternalProcessor.process(SharedCamelInternalProcessor.java:86)
at
org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:541)
at
org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:506)
at
org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:369)
at
org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:506)
at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:229)
at
org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:144)
at
org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:161)
at
org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:168)
at
org.apache.james.mailetcontainer.impl.camel.CamelMailetProcessor.service(CamelMailetProcessor.java:68)
at
org.apache.james.mailetcontainer.lib.AbstractStateCompositeProcessor.service(AbstractStateCompositeProcessor.java:84)
at
org.apache.james.mailetcontainer.impl.JamesMailSpooler.lambda$run$0(JamesMailSpooler.java:163)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
{code}
It cames from the Dlp part (Dlp.java):
{code:java}
private Optional<DLPConfigurationItem.Id> findFirstMatchingRule(Mail mail) {
return Optional
.ofNullable(mail.getSender())
.flatMap(sender -> matchingRule(sender, mail));
}
private Optional<DLPConfigurationItem.Id> matchingRule(MailAddress address,
Mail mail) {
return rulesLoader.load(address.getDomain()).match(mail);
}
{code}
Since `mail.getSender()` returns a `NULL_SENDER` and not a `null` value,
`matchingRule` is executed, since it breaks the LSP, it breaks our code.
There are two solutions:
* Strengthening `MailAddress`
* Checking `MailAddress.isNullSender()`
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