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Splunk XML Parsing

craigwilkinson
Path Finder
‎03-29-2017 05:46 PM

Hey Guys,

Is someone able to assist me with line breaking and field extraction XML output from Splunk REST API - which is fed into splunk.
I'd like to split the events based on <entry>. Any ideas and help greatly appreciated!

<?xml version="1.0" encoding="UTF-8"?>
<!--This is to override browser formatting; see server.conf[httpServer] to disable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-->
<?xml-stylesheet type="text/xml" href="/static/atom.xsl"?>
<feed xmlns="http://www.w3.org/2005/Atom" xmlns:s="http://dev.splunk.com/ns/rest" xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/">
  <title>tcpout-server</title>
  <id>https://22.33.444.55:8089/servicesNS/nobody/system/data/outputs/tcp/server</id>
  <updated>2017-03-29T15:51:40+11:00</updated>
  <generator build="f44afce176d0" version="6.3.3"/>
  <author>
    <name>Splunk</name>
  </author>
  <link href="/servicesNS/nobody/system/data/outputs/tcp/server/_new" rel="create"/>
  <link href="/servicesNS/nobody/system/data/outputs/tcp/server/_reload" rel="_reload"/>
  <link href="/servicesNS/nobody/system/data/outputs/tcp/server/_acl" rel="_acl"/>
  <opensearch:totalResults>2</opensearch:totalResults>
  <opensearch:itemsPerPage>30</opensearch:itemsPerPage>
  <opensearch:startIndex>0</opensearch:startIndex>
  <s:messages/>
  <entry>
    <title>33.44.555.69:9997</title>
    <id>https://22.33.444.55:8089/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997</id>
    <updated>2017-03-29T15:51:40+11:00</updated>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997" rel="alternate"/>
    <author>
      <name>nobody</name>
    </author>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997" rel="list"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997/_reload" rel="_reload"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997" rel="edit"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997" rel="remove"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997/allconnections" rel="allconnections"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/33.44.555.69%3A9997/disable" rel="disable"/>
    <content type="text/xml">
      <s:dict>
        <s:key name="destHost">33.44.555.69</s:key>
        <s:key name="destIp">33.44.555.69</s:key>
        <s:key name="destPort">9997</s:key>
        <s:key name="eai:acl">
          <s:dict>
            <s:key name="app">system</s:key>
            <s:key name="can_change_perms">1</s:key>
            <s:key name="can_list">1</s:key>
            <s:key name="can_share_app">1</s:key>
            <s:key name="can_share_global">1</s:key>
            <s:key name="can_share_user">0</s:key>
            <s:key name="can_write">1</s:key>
            <s:key name="modifiable">1</s:key>
            <s:key name="owner">nobody</s:key>
            <s:key name="perms">
              <s:dict>
                <s:key name="read">
                  <s:list>
                    <s:item>*</s:item>
                  </s:list>
                </s:key>
                <s:key name="write">
                  <s:list>
                    <s:item>*</s:item>
                  </s:list>
                </s:key>
              </s:dict>
            </s:key>
            <s:key name="removable">1</s:key>
            <s:key name="sharing">system</s:key>
          </s:dict>
        </s:key>
        <s:key name="method">autobalance</s:key>
        <s:key name="sourcePort">8089</s:key>
        <s:key name="ssl">1</s:key>
        <s:key name="sslCertPath">sslcerpathhere</s:key>
        <s:key name="sslCommonNameToCheck">sllcommonnamehere</s:key>
        <s:key name="sslPassword">sslpasswordhere</s:key>
        <s:key name="sslRootCAPath">sslpathhere</s:key>
        <s:key name="sslVerifyServerCert">1</s:key>
        <s:key name="status">connect_done</s:key>
      </s:dict>
    </content>
  </entry>
  <entry>
    <title>11.22.333.44:9997</title>
    <id>https://22.33.444.55:8089/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997</id>
    <updated>2017-03-29T15:51:40+11:00</updated>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997" rel="alternate"/>
    <author>
      <name>nobody</name>
    </author>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997" rel="list"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997/_reload" rel="_reload"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997" rel="edit"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997" rel="remove"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997/allconnections" rel="allconnections"/>
    <link href="/servicesNS/nobody/system/data/outputs/tcp/server/11.22.333.44%3A9997/disable" rel="disable"/>
    <content type="text/xml">
      <s:dict>
        <s:key name="destHost">11.22.333.44</s:key>
        <s:key name="destIp">11.22.333.44</s:key>
        <s:key name="destPort">9997</s:key>
        <s:key name="eai:acl">
          <s:dict>
            <s:key name="app">system</s:key>
            <s:key name="can_change_perms">1</s:key>
            <s:key name="can_list">1</s:key>
            <s:key name="can_share_app">1</s:key>
            <s:key name="can_share_global">1</s:key>
            <s:key name="can_share_user">0</s:key>
            <s:key name="can_write">1</s:key>
            <s:key name="modifiable">1</s:key>
            <s:key name="owner">nobody</s:key>
            <s:key name="perms">
              <s:dict>
                <s:key name="read">
                  <s:list>
                    <s:item>*</s:item>
                  </s:list>
                </s:key>
                <s:key name="write">
                  <s:list>
                    <s:item>*</s:item>
                  </s:list>
                </s:key>
              </s:dict>
            </s:key>
            <s:key name="removable">1</s:key>
            <s:key name="sharing">system</s:key>
          </s:dict>
        </s:key>
        <s:key name="method">autobalance</s:key>
        <s:key name="sourcePort">8089</s:key>
        <s:key name="ssl">1</s:key>
        <s:key name="sslCertPath">sslcerpathhere</s:key>
        <s:key name="sslCommonNameToCheck">sllcommonnamehere</s:key>
        <s:key name="sslPassword">sslpasswordhere</s:key>
        <s:key name="sslRootCAPath">sslpathhere</s:key>
        <s:key name="sslVerifyServerCert">1</s:key>
        <s:key name="status">connect_done</s:key>
      </s:dict>
    </content>
  </entry>
</feed>

-Craig

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Solution

beatus
Communicator
‎03-29-2017 08:38 PM

Craig,
You have the option to modify the output mode with your rest request by adding "?output_mode=json". You have a few options there and may like the field extractions better. That said, here's what I'd do for this data:

Props.conf:

[xml:data]
KV_MODE = xml
SHOULD_LINEMERGE=false
NO_BINARY_CHECK=true
CHARSET=UTF-8
disabled=false
LINE_BREAKER=([\r\n\s]+)\
TIME_PREFIX=\
TIME_FORMAT=%FT%T%:z
MAX_TIMESTAMP_LOOKAHEAD=30
TRUNCATE = 99999
TRANSFORMS-remove_header = remove_header

Transforms.conf:

[remove_header]
REGEX = This\sis\sto\soverride\sbrowser\sformatting
DEST_KEY=queue
FORMAT=nullQueue

To explain this a bit - We set critical props settings to ensure data is broken correctly and timestamped correctly. Next we remove the extra data from the event (that top piece) and nullQueue it with the transforms.conf. Lastly, we use "KV_MODE = xml" to get some field extracts working.

The end result in Splunk - Automatically extracting fields on the XML data (granted the field names kinda stink). See the screenshot. alt text

View solution in original post

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Solution

beatus
Communicator
‎03-29-2017 08:38 PM

Craig,
You have the option to modify the output mode with your rest request by adding "?output_mode=json". You have a few options there and may like the field extractions better. That said, here's what I'd do for this data:

Props.conf:

[xml:data]
KV_MODE = xml
SHOULD_LINEMERGE=false
NO_BINARY_CHECK=true
CHARSET=UTF-8
disabled=false
LINE_BREAKER=([\r\n\s]+)\
TIME_PREFIX=\
TIME_FORMAT=%FT%T%:z
MAX_TIMESTAMP_LOOKAHEAD=30
TRUNCATE = 99999
TRANSFORMS-remove_header = remove_header

Transforms.conf:

[remove_header]
REGEX = This\sis\sto\soverride\sbrowser\sformatting
DEST_KEY=queue
FORMAT=nullQueue

To explain this a bit - We set critical props settings to ensure data is broken correctly and timestamped correctly. Next we remove the extra data from the event (that top piece) and nullQueue it with the transforms.conf. Lastly, we use "KV_MODE = xml" to get some field extracts working.

The end result in Splunk - Automatically extracting fields on the XML data (granted the field names kinda stink). See the screenshot. alt text

Preview file
1 KB
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craigwilkinson
Path Finder
‎03-29-2017 08:55 PM

Legend. Thank you so much!

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woodcock
Esteemed Legend
‎03-29-2017 07:54 PM

Like this:

LINE_BREAKER = [\r\n\s]+<\/entry>([\r\n\s]+)<entry>[\r\n\s]+
SHOULD_LINEMERGE = false
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craigwilkinson
Path Finder
‎03-29-2017 07:58 PM

Awesome thanks!

Any help with regards to the field extraction, just 1-2 examples would be great. can figure out the others 🙂

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woodcock
Esteemed Legend
‎03-29-2017 08:04 PM

Sorry, I didn't catch that at first. Just feed your event into spath:

https://docs.splunk.com/Documentation/Splunk/6.5.2/SearchReference/Spath

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