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https://issues.apache.org/jira/browse/DIRSERVER-1367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710338#action_12710338
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Emmanuel Lecharny commented on DIRSERVER-1367:
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Ok, I was completely wrong. The PDU I was decoding weren't the one associated
with the search with a space in the attributes field. In fact, I got an
exception which was not handled correctly.
If the attributes is empty then the server works fine. However, if you inject a
space (ore more than one space), it considers it as a valid attribute, try to
put it in an internal structure used to store the attributes list, and fails
because the String is trimmed, leading to an empty string, which is not allowed.
I have a fix for this, I will apply it asap.
> Protocol error when requesting attribute with the space character only
> ----------------------------------------------------------------------
>
> Key: DIRSERVER-1367
> URL: https://issues.apache.org/jira/browse/DIRSERVER-1367
> Project: Directory ApacheDS
> Issue Type: Bug
> Components: ldap
> Affects Versions: 1.5.4
> Reporter: Stefan Seelmann
> Assignee: Emmanuel Lecharny
> Fix For: 1.5.5
>
>
> When setting the returning attributes of a search to the space character the
> server returns a protocol error:
> ldapsearch -H ldap://localhost:10389 -x -D "uid=admin,ou=system" -W -b
> "ou=users,ou=system" -s base -a always "(objectClass=*)" " "
> The result is the following error:
> # extended result response
> extended: 1.3.6.1.4.1.1466.20036
> data:
> result: 2 Protocol error
> text: PROTOCOL_ERROR: The server will disconnect!
> Here is a testcase using JNDI:
> Index:
> src/test/java/org/apache/directory/server/operations/search/SearchIT.java
> ===================================================================
> --- src/test/java/org/apache/directory/server/operations/search/SearchIT.java
> (revision 774248)
> +++ src/test/java/org/apache/directory/server/operations/search/SearchIT.java
> (working copy)
> @@ -1321,6 +1321,24 @@
>
>
> /**
> + * Check if no error occurs if " " is requested.
> + */
> + @Test
> + public void testSearchUserAttributes_Space() throws Exception
> + {
> + LdapContext ctx = ( LdapContext ) getWiredContext( ldapService
> ).lookup( BASE );
> + SearchControls ctls = new SearchControls();
> +
> + ctls.setSearchScope( SearchControls.OBJECT_SCOPE );
> + ctls.setReturningAttributes( new String[]
> + { " " } );
> +
> + NamingEnumeration<SearchResult> result = ctx.search( HEATHER_RDN,
> FILTER, ctls );
> + result.close();
> + }
> +
> +
> + /**
> * Check if user and operational attributes are present, if both "*" and
> "+" are requested.
> */
> @Test
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