show_terri_code.rb

def parse_var(text)
  if text.include?(",")
    return test.split(",")
  elsif text.include?(",")
    return test.split(";")
  else
    [text]
  end
end


ldap_uids = parse_var(shib_uid)
user = ldap_uids.find { |uid| User.find_by_ldap_uid(uid) }
valid_shib_uid = user.try(:ldap_uid)



class Shib
  
  class << self
    def get_user(http_env_hash)
      logger.debug("HTTP_SHIB_IDENTITY_PROVIDER : #{request.env['HTTP_SHIB_IDENTITY_PROVIDER'].inspect}")
      logger.debug("request.env output:")
      request.env.each { |k,v| logger.debug("#{k}: #{v}") }

      shib_idp = http_env_hash['HTTP_SHIB_IDENTITY_PROVIDER'] # has a value like:  "urn:mace:incommon:berkeley.edu"

      # if campus = Campus.find_by_shibboleth_identity_provider(shib_idp)
      
      ldap_uid = extract_attributes(http_env_hash['HTTP_UID']).first
      eppn = extract_attributes(http_env_hash['HTTP_EPPN']).first
      emails = extract_attributes(http_env_hash['HTTP_MAIL'])
      
      if user = User.find_by_ldap_uid(ldap_uid)
        user.eppn = eppn
        user.save!
        return user
      end


      return user if user = User.find_by_eppn(eppn)

      if user = emails.find { |email| User.find_by_email(email) }
        user.eppn = eppn
        user.uid = ldap_uid
        user.save!
        user
      end  
    end

    ##
    # Some attributes may be multi-valued.  Multi-valued attributes are
    # delimited by "," or ";"
    #
    # @param [String]
    # @return [Array<String>]
    #
    def extract_attributes(text)
      if text.include?(",")
        return test.split(",")
      elsif text.include?(",")
        return test.split(";")
      else
        [text]
      end
    end
  end
end