Class: Net::LDAP::AuthAdapter::Sasl
- Inherits:
-
Net::LDAP::AuthAdapter
- Object
- Net::LDAP::AuthAdapter
- Net::LDAP::AuthAdapter::Sasl
- Defined in:
- lib/net/ldap/auth_adapter/sasl.rb
Constant Summary collapse
- MAX_SASL_CHALLENGES =
10
Instance Method Summary collapse
-
#bind(auth) ⇒ Object
– Required parameters: :mechanism, :initial_credential and :challenge_response.
Methods inherited from Net::LDAP::AuthAdapter
Constructor Details
This class inherits a constructor from Net::LDAP::AuthAdapter
Instance Method Details
#bind(auth) ⇒ Object
– Required parameters: :mechanism, :initial_credential and :challenge_response
Mechanism is a string value that will be passed in the SASL-packet’s “mechanism” field.
Initial credential is most likely a string. It’s passed in the initial BindRequest that goes to the server. In some protocols, it may be empty.
Challenge-response is a Ruby proc that takes a single parameter and returns an object that will typically be a string. The challenge-response block is called when the server returns a BindResponse with a result code of 14 (saslBindInProgress). The challenge-response block receives a parameter containing the data returned by the server in the saslServerCreds field of the LDAP BindResponse packet. The challenge-response block may be called multiple times during the course of a SASL authentication, and each time it must return a value that will be passed back to the server as the credential data in the next BindRequest packet. ++
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# File 'lib/net/ldap/auth_adapter/sasl.rb', line 30 def bind(auth) mech, cred, chall = auth[:mechanism], auth[:initial_credential], auth[:challenge_response] raise Net::LDAP::BindingInformationInvalidError, "Invalid binding information" unless (mech && cred && chall) = @connection.next_msgid n = 0 loop do sasl = [mech.to_ber, cred.to_ber].to_ber_contextspecific(3) request = [ Net::LDAP::Connection::LdapVersion.to_ber, "".to_ber, sasl ].to_ber_appsequence(Net::LDAP::PDU::BindRequest) @connection.send(:write, request, nil, ) pdu = @connection.queued_read() if !pdu || pdu.app_tag != Net::LDAP::PDU::BindResult raise Net::LDAP::NoBindResultError, "no bind result" end return pdu unless pdu.result_code == Net::LDAP::ResultCodeSaslBindInProgress raise Net::LDAP::SASLChallengeOverflowError, "sasl-challenge overflow" if ((n += 1) > MAX_SASL_CHALLENGES) cred = chall.call(pdu.result_server_sasl_creds) end raise Net::LDAP::SASLChallengeOverflowError, "why are we here?" end |