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https://issues.apache.org/jira/browse/MIME4J-324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoit Tellier closed MIME4J-324.
---------------------------------
    Fix Version/s: 0.8.10
       Resolution: Fixed

> URL decoding error propagated with Lenient Content-Disposition headers.
> -----------------------------------------------------------------------
>
>                 Key: MIME4J-324
>                 URL: https://issues.apache.org/jira/browse/MIME4J-324
>             Project: James Mime4j
>          Issue Type: Bug
>          Components: dom
>            Reporter: Benoit Tellier
>            Priority: Major
>             Fix For: 0.8.10
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> See https://issues.apache.org/jira/browse/JAMES-3901
> {code:java}
> Content-Disposition: attachment; 
>         filename*=utf-8''4%P001!.DOC;
>         filename="4%P001!.DOC"
> {code}
> Lead to:
> {code:java}
> java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in 
> escape (%) pattern - Error at index 0 in: \"P0\"
>       at java.base/java.net.URLDecoder.decode(Unknown Source)
>       at java.base/java.net.URLDecoder.decode(Unknown Source)
>       at 
> org.apache.james.mime4j.util.MimeParameterMapping.decodeParameterValue(MimeParameterMapping.java:55)
>       at 
> org.apache.james.mime4j.util.MimeParameterMapping.addParameter(MimeParameterMapping.java:39)
>       at 
> org.apache.james.mime4j.field.ContentDispositionFieldLenientImpl.parse(ContentDispositionFieldLenientImpl.java:165)
>       at 
> org.apache.james.mime4j.field.ContentDispositionFieldLenientImpl.getDispositionType(ContentDispositionFieldLenientImpl.java:72)
>       at 
> org.apache.james.mime4j.message.MaximalBodyDescriptor.getContentDispositionType(MaximalBodyDescriptor.java:183)
>       at 
> org.apache.james.mailbox.opensearch.json.MimePartParser.extractMimePartBodyDescription(MimePartParser.java:133)
>       at 
> org.apache.james.mailbox.opensearch.json.MimePartParser.manageBodyExtraction(MimePartParser.java:120)
>       at 
> org.apache.james.mailbox.opensearch.json.MimePartParser.processMimePart(MimePartParser.java:87)
>       at 
> org.apache.james.mailbox.opensearch.json.MimePartParser.parse(MimePartParser.java:69)
>       at 
> org.apache.james.mailbox.opensearch.json.IndexableMessage$Builder.instantiateIndexedMessage(IndexableMessage.java:111)
>       at 
> org.apache.james.mailbox.opensearch.json.IndexableMessage$Builder.build(IndexableMessage.java:76)
>       at 
> org.apache.james.mailbox.opensearch.json.MessageToOpenSearchJson.convertToJson(MessageToOpenSearchJson.java:74)
>       at 
> org.apache.james.mailbox.opensearch.events.OpenSearchListeningMessageSearchIndex.generateIndexedJson(OpenSearchListeningMessageSearchIndex.java:175)
>       at 
> org.apache.james.mailbox.opensearch.events.OpenSearchListeningMessageSearchIndex.add(OpenSearchListeningMessageSearchIndex.java:169)
>       at 
> org.apache.mailbox.tools.indexer.ReIndexerPerformer.lambda$index$23(ReIndexerPerformer.java:318)
> {code}
> Impact: the following message cannot be indexed...
> While in James we can do a better job at parsing the error... We need to 
> understand if the given header is valid or not, and I would expect the 
> Content-Dispotion error NOT to throw an error when a lenient parser is used - 
> here leniency is not respected! 



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