Does anyone have an example of how to use regexsplit

Paul Hethmon paul.hethmon at clareitysecurity.com
Thu Sep 27 13:37:15 EDT 2012


Leonard,

I don't have an exact solution but since that expression gets compiled
into a Java regex object, you might try using one of the online Java regex
sites. This is one I like:

http://www.regexplanet.com/advanced/java/index.html


It just gives an easy way to fine tune the expression quickly.

Paul

On 9/27/12 1:29 PM, "Leonard Kroll" <Leonard.Kroll at umb.edu> wrote:

>Hi all,
>
>I am having problems getting regexsplit to work.
>The problem is with the regular expression specified.
>I have a title attribute that looks like Faculty/pt and I want to pull
>off just the Faculty portion.
>I have tried a regex of ^(Staff|Student|Faculty) and it only works if the
>title is "Faculty". (exact match)
>If the title is "Faculty/pt" the regular expression does not match.
>
>The attribute values for title can be Student, Student/pt, Staff, Faculty
>and Faculty/pt, Faculty/do
>
>Also tried regex="^(\w*)"
>
>Not sure what to try next.
>Here is what my attribure defs look like:
>
>    <resolver:AttributeDefinition xsi:type="ad:Scoped"
>id="eduPersonScopedAffiliation" scope="umb.edu"
>						sourceAttributeID="SPLIT_TITLE">
>        <resolver:Dependency ref="SPLIT_TITLE" />
>        <resolver:AttributeEncoder xsi:type="enc:SAML1ScopedString"
>				name="urn:mace:dir:attribute-def:eduPersonScopedAffiliation" />
>        <resolver:AttributeEncoder xsi:type="enc:SAML2ScopedString"
>name="urn:oid:1.3.6.1.4.1.5923.1.1.1.9"
>				friendlyName="eduPersonScopedAffiliation" />
>    </resolver:AttributeDefinition>
>
><!-- -->
>
><resolver:AttributeDefinition xsi:type="RegexSplit"
>xmlns="urn:mace:shibboleth:2.0:resolver:ad"
>                              id="SPLIT_TITLE"
>                              sourceAttributeID="title"
>		      	regex="^(Student|faculty|Faculty|Staff)" >
>
>     <resolver:Dependency ref="myLDAP" />
>
>
>
>Christopher, thank you for getting me this far.
>I could not have done it without you.
>
>~lennyK
>
>-----Original Message-----
>From: users-bounces at shibboleth.net [mailto:users-bounces at shibboleth.net]
>On Behalf Of Christopher Bongaarts
>Sent: Tuesday, September 25, 2012 4:12 PM
>To: users at shibboleth.net
>Subject: Re: Does anyone have an example of how to use regexsplit
>
>On 9/25/2012 12:52 PM, Leonard Kroll wrote:
>>
>> Hi, I need to split the title attribute. I want to pull "Student",
>>"Staff" and "Faculty" off the beginning of the attribute.
>> i.e. "Faculty/pt", "Staff/ne", "Student/li"
>>
>> Does anyone have an example  of regexsplit showing how to use it?
>
>No, but might be able to give some suggestions...
>
>> <resolver:AttributeDefinition xsi:type="ad:Scoped"
>>id="eduPersonScopedAffiliation" scope="umb.edu"
>>                 
>> sourceAttributeID="title">
>
>I think you want sourceAttributeID="SPLIT_TITLE" if you want your ePSA to
>be based on the result of the splitting rather than the raw title
>attribute.
>
>>          <resolver:Dependency ref="myLDAP" />
>
>I think you have your dependencies backward if you want ePSA based on the
>first part of the title.  This one would be ref="SPLIT_TITLE".
>
>> <resolver:AttributeDefinition xsi:type="RegexSplit"
>>xmlns="urn:mace:shibboleth:2.0:resolver:ad"
>>                                id="SPLIT_TITLE"
>>                                sourceAttributeID="title"
>>                                regex="[Student][Faculty][Staff]">
>
>You need a Java 5 regex, with the first match group assigned as the
>value... something like:
>
>   regex="^(Student|Faculty|Staff)"
>
>>       <resolver:Dependency ref="eduPersonScopedAffiliation" />
>
>This one would ref="myLDAP".
>
>-- 
>%%  Christopher A. Bongaarts   %%  cab at umn.edu          %%
>%%  OIT - Identity Management  %%  http://umn.edu/~cab  %%
>%%  University of Minnesota    %%  +1 (612) 625-1809    %%
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