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Posted to dev@directory.apache.org by "Patrick Peer (Jira)" <ji...@apache.org> on 2021/10/18 15:08:00 UTC
[jira] [Created] (DIRAPI-379) NPE on ill formed error response
Patrick Peer created DIRAPI-379:
-----------------------------------
Summary: NPE on ill formed error response
Key: DIRAPI-379
URL: https://issues.apache.org/jira/browse/DIRAPI-379
Project: Directory Client API
Issue Type: Bug
Affects Versions: 2.0.0.AM2
Reporter: Patrick Peer
When one passes a presumably ill formed response to an instance of
Dsmlv2ResponseParser, a NullPointerException might be thrown.
Example Response:
{code:xml}
<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
<soap:Header>
<Action xmlns="http://www.w3.org/2005/08/addressing">urn:ihe:iti:2010:ProviderInformationFeedResponse</Action>
<MessageID xmlns="http://www.w3.org/2005/08/addressing">urn:uuid:e7b4def8-0ad7-46d9-b9db-3389b6c3c7f7</MessageID>
<To xmlns="http://www.w3.org/2005/08/addressing">http://www.w3.org/2005/08/addressing/anonymous</To>
<RelatesTo xmlns="http://www.w3.org/2005/08/addressing">urn:uuid:e529d797-d54f-41c0-8cea-d5e2c194afbf</RelatesTo>
</soap:Header>
<soap:Body>
<batchResponse xmlns="urn:oasis:names:tc:DSML:2:0:core" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<errorResponse type="couldNotConnect">
<message>ERR_04110_CANNOT_CONNECT_TO_SERVER Cannot connect to the server: Connection refused</message>
</errorResponse>
</batchResponse>
</soap:Body>
</soap:Envelope>
{code}
Relevant parts of the stacktrace:
{noformat}
java.lang.NullPointerException: Cannot invoke "org.apache.directory.api.dsmlv2.response.ErrorResponse.getTypeDescr(org.apache.directory.api.dsmlv2.response.ErrorResponse$ErrorResponseType)" because "errorResponse" is null
at org.apache.directory.api.dsmlv2.response.Dsmlv2ResponseGrammar$9.action(Dsmlv2ResponseGrammar.java:524) ~[api-all-2.0.0.AM2.jar:2.0.0.AM2]
at org.apache.directory.api.dsmlv2.AbstractGrammar.processTag(AbstractGrammar.java:162) ~[api-all-2.0.0.AM2.jar:2.0.0.AM2]
at org.apache.directory.api.dsmlv2.AbstractGrammar.executeAction(AbstractGrammar.java:123) ~[api-all-2.0.0.AM2.jar:2.0.0.AM2]
at org.apache.directory.api.dsmlv2.Dsmlv2ResponseParser.parse(Dsmlv2ResponseParser.java:127) ~[api-all-2.0.0.AM2.jar:2.0.0.AM2]
{noformat}
Relevant part of the code:
{code:java}
public final class Dsmlv2ResponseGrammar extends AbstractGrammar implements Grammar
{
...
private final GrammarAction errorResponseCreation = new GrammarAction( "Create Error Response" )
{
public void action( Dsmlv2Container container ) throws XmlPullParserException
{
ErrorResponse errorResponse = null;
...
attributeValue = xpp.getAttributeValue( "", "requestID" );
if ( attributeValue != null )
{
errorResponse = new ErrorResponse( ParserUtils.parseAndVerifyRequestID( attributeValue, xpp ), null );
...
}
attributeValue = xpp.getAttributeValue( "", "type" );
if ( attributeValue != null )
{
// When errorResponse was not initialized with the requestID attributeValue, an NPE will be raised here
if ( attributeValue.equals( errorResponse.getTypeDescr( ErrorResponseType.NOT_ATTEMPTED ) ) )
...
{code}
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