[Shib-Users] SP Error: basic_string::_S_construct NULL not valid

[Joshua Brodie]

Hi:

I am trying to connect a newly installed SP to our federation's WAYF service; the following message was received when accessing a page secured by the SP:

"std::exception at (https://sp.example.com/secure)

basic_string::_S_construct NULL not valid"

This is my first time setting up an SP to the federation; I inserted the following into the  'shibboleth2.xml' file:

            "<SessionInitiator type="Chaining" Location="/WAYF" isDefault="true" id="WAYF" relayState="cookie" >
              <SessionInitiator type="SAML2" acsIndex="1" template="bindingTemplate.html"/>
              <SessionInitiator type="Shib1" acsIndex="5"/>
              <SessionInitiator type="WAYF"  URL="https://example.federation/WAYF"/>
            </SessionInitiator>"

Any tips on why this error could be occurring?

Thanks.

[Cantor, Scott E.]

>Any tips on why this error could be occurring?

Bug, it's been fixed. Only workaround for the moment is to copy the
acsIndex attribute from the Shib1 handler, but you shouldn't need to use
the WAYF protocol at this point. Any deployments today should be using the
SAMLDS variant, which doesn't have the bug.

-- Scott

[Joshua Brodie]

Thanks Scott - your suggestion worked.