peer_cert_chain

# File lib/webrick/cgi.rb, line 286
      def peer_cert_chain
        return nil unless defined?(OpenSSL)
        if @env["SSL_CLIENT_CERT_CHAIN_0"]
          keys = @env.keys
          certs = keys.sort.collect{|k|
            if /^SSL_CLIENT_CERT_CHAIN_\d+$/ =~ k
              if pem = @env[k]
                OpenSSL::X509::Certificate.new(pem) unless pem.empty?
              end
            end
          }
          certs.compact
        end
      end