func()

in network/client.go [169:202]

• 27 lines of code
• 8 McCabe index (conditional complexity)

func (n *client) getCAChain(tls *tls.ConnectionState) string {
	if len(n.caData) != 0 {
		return string(n.caData)
	}

	if tls == nil {
		return ""
	}

	// Don't reorder certificates by putting them directly into the map
	var certificates []*x509.Certificate
	seenCertificates := make(map[string]bool, 0)

	for _, verifiedChain := range tls.VerifiedChains {
		for _, certificate := range verifiedChain {
			signature := hex.EncodeToString(certificate.Signature)
			if seenCertificates[signature] {
				continue
			}

			seenCertificates[signature] = true
			certificates = append(certificates, certificate)
		}
	}

	out := bytes.NewBuffer(nil)
	for _, certificate := range certificates {
		if err := pem.Encode(out, &pem.Block{Type: "CERTIFICATE", Bytes: certificate.Raw}); err != nil {
			logrus.Warn("Failed to encode certificate from chain:", err)
		}
	}

	return out.String()
}