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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (NIFI-2380) ExtractEmailAttachments processor should support TNEF files (aka winmail.dat)
Date Tue, 06 Sep 2016 12:39:20 GMT


ASF GitHub Bot commented on NIFI-2380:

Github user trixpan commented on a diff in the pull request:
    --- Diff: nifi-nar-bundles/nifi-email-bundle/nifi-email-processors/src/main/java/org/apache/nifi/processors/email/
    @@ -0,0 +1,202 @@
    + * Licensed to the Apache Software Foundation (ASF) under one or more
    + * contributor license agreements.  See the NOTICE file distributed with
    + * this work for additional information regarding copyright ownership.
    + * The ASF licenses this file to You under the Apache License, Version 2.0
    + * (the "License"); you may not use this file except in compliance with
    + * the License.  You may obtain a copy of the License at
    + *
    + *
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +import org.apache.commons.lang3.StringUtils;
    +import org.apache.nifi.annotation.behavior.EventDriven;
    +import org.apache.nifi.annotation.behavior.InputRequirement;
    +import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
    +import org.apache.nifi.annotation.behavior.SideEffectFree;
    +import org.apache.nifi.annotation.behavior.SupportsBatching;
    +import org.apache.nifi.annotation.behavior.WritesAttribute;
    +import org.apache.nifi.annotation.behavior.WritesAttributes;
    +import org.apache.nifi.annotation.documentation.CapabilityDescription;
    +import org.apache.nifi.annotation.documentation.Tags;
    +import org.apache.nifi.components.PropertyDescriptor;
    +import org.apache.nifi.flowfile.FlowFile;
    +import org.apache.nifi.flowfile.attributes.CoreAttributes;
    +import org.apache.nifi.logging.ComponentLog;
    +import org.apache.nifi.processor.AbstractProcessor;
    +import org.apache.nifi.processor.ProcessContext;
    +import org.apache.nifi.processor.ProcessSession;
    +import org.apache.nifi.processor.ProcessorInitializationContext;
    +import org.apache.nifi.processor.Relationship;
    +import org.apache.nifi.processor.exception.FlowFileHandlingException;
    +import org.apache.poi.hmef.Attachment;
    +import org.apache.poi.hmef.HMEFMessage;
    +import java.util.ArrayList;
    +import java.util.Collections;
    +import java.util.HashMap;
    +import java.util.HashSet;
    +import java.util.List;
    +import java.util.Map;
    +import java.util.Properties;
    +import java.util.Set;
    +@Tags({"split", "email"})
    +@CapabilityDescription("Extract attachments from a mime formatted email file, splitting
them into individual flowfiles.")
    +        @WritesAttribute(attribute = "filename ", description = "The filename of the
    +        @WritesAttribute(attribute = "email.tnef.attachment.parent.filename ", description
= "The filename of the parent FlowFile"),
    +        @WritesAttribute(attribute = "email.tnef.attachment.parent.uuid", description
= "The UUID of the original FlowFile.")})
    +public class ExtractTNEFAttachments extends AbstractProcessor {
    +    public static final String ATTACHMENT_ORIGINAL_FILENAME = "email.tnef.attachment.parent.filename";
    +    public static final String ATTACHMENT_ORIGINAL_UUID = "email.tnef.attachment.parent.uuid";
    +    public static final Relationship REL_ATTACHMENTS = new Relationship.Builder()
    +            .name("attachments")
    +            .description("Each individual attachment will be routed to the attachments
    +            .build();
    +    public static final Relationship REL_ORIGINAL = new Relationship.Builder()
    +            .name("original")
    +            .description("The original file")
    --- End diff --

> ExtractEmailAttachments processor should support TNEF files (aka winmail.dat)
> -----------------------------------------------------------------------------
>                 Key: NIFI-2380
>                 URL:
>             Project: Apache NiFi
>          Issue Type: Improvement
>    Affects Versions: 1.0.0
>            Reporter: Andre
>            Assignee: Andre
>             Fix For: 1.1.0
> during the review of NIFI-1899 Dan Marshall highlighted some use cases for email processing
that have not been addressed as part of the initial development cycle.
> One of these use cases was the decoding of Microsoft Transport Neutral Encoding Files
> This type of attachments is popularly know as winmail.dat and uses a non RFC compliant
structure to transfer attachments across different Microsoft Outlook clients.
> Given the prevalence of outlook and the issues with winmail.dat files, it would be nice
to be able to decode TNEF as we currently do with MIME attachments.
> Permalink to Dan's comments

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