public void processChallenge()

in client/src/main/java/org/apache/ahc/auth/DigestScheme.java [86:122]

32 lines of code
9 McCabe index (conditional complexity)


    public void processChallenge(final String challenge)
      throws MalformedChallengeException {
        super.processChallenge(challenge);

        if (getParameter("realm") == null) {
            throw new MalformedChallengeException("missing realm in challange");
        }
        if (getParameter("nonce") == null) {
            throw new MalformedChallengeException("missing nonce in challange");
        }

        boolean unsupportedQop = false;
        // qop parsing
        String qop = getParameter("qop");
        if (qop != null) {
            StringTokenizer tok = new StringTokenizer(qop,",");
            while (tok.hasMoreTokens()) {
                String variant = tok.nextToken().trim();
                if (variant.equals("auth")) {
                    qopVariant = QOP_AUTH;
                    break; //that's our favourite, because auth-int is unsupported
                } else if (variant.equals("auth-int")) {
                    qopVariant = QOP_AUTH_INT;
                } else {
                    unsupportedQop = true;
                    LOG.warn("Unsupported qop detected: "+ variant);
                }
            }
        }

        if (unsupportedQop && (qopVariant == QOP_MISSING)) {
            throw new MalformedChallengeException("None of the qop methods is supported");
        }

        cnonce = createCnonce();
        this.complete = true;
    }