Jeffrey E Rodriguez created KNOX-582:
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Summary: Query Parameter rewrite does not honor empty string value
Key: KNOX-582
URL: https://issues.apache.org/jira/browse/KNOX-582
Project: Apache Knox
Issue Type: Bug
Components: Server
Affects Versions: 0.5.0, 0.6.0
Environment: Linux Redhat all versions
Reporter: Jeffrey E Rodriguez
Fix For: 0.7.0
Query Parameter rewrite doesn't honor empty string value.
e.g.
The folowing URL
"http://localhost:11000/oozie/v2/jobs?_dc=1438899557070&filter=&timezone=GMT";
has an empty string value.
Giving the following rewrite rule:
<rule dir="IN" name="OOZIEUI/oozie/query" pattern="*://*:*/**/oozie/{**}?{**}">
<rewrite template="{$serviceUrl[OOZIEUI]}/{**}?{**}"/>
</rule>
Will rewrite the query parameter into:
_dc=1438899557070&filter=null&timezone=GMT"
Where the filter=null is passed to oozie it throws an exception.
Knox should honor the original query parameters even in the case where
they are empty. Empty value meaning an empty string vs a "null". The reason
being is that end point services may assign different semantics
to having empty strings.
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