module EmHttpSslPatch

def ssl_verify_peer(cert_string)
  cert = nil
  begin
    cert = OpenSSL::X509::Certificate.new(cert_string)
  rescue OpenSSL::X509::CertificateError
    return false
  end
  @last_seen_cert = cert
  if certificate_store.verify(@last_seen_cert)
    begin
      certificate_store.add_cert(@last_seen_cert)
    rescue OpenSSL::X509::StoreError => e
      raise e unless e.message == 'cert already in hash table'
    end
    true
  else
    raise OpenSSL::SSL::SSLError.new(%(unable to verify the server certificate for "#{host}"))
  end
end