Review

• missing/call

class HttpMethodDirector {
    private boolean processWWWAuthChallenge(final HttpMethod method)
        throws MalformedChallengeException, AuthenticationException  
    {
        AuthState authstate = method.getHostAuthState();
        if (authstate.isPreemptive()) {
            authstate.invalidate();
        }
        Map challenges = AuthChallengeParser.parseChallenges(
            method.getResponseHeaders(WWW_AUTH_CHALLENGE));
        if (challenges.isEmpty()) {
            LOG.debug("Authentication challenge(s) not found");
            return false; 
        }
        AuthScheme authscheme = null;
        try {
            authscheme = this.authProcessor.processChallenge(authstate, challenges);
        } catch (AuthChallengeException e) {
            if (LOG.isWarnEnabled()) {
                LOG.warn(e.getMessage());
            }
        }
        if (authscheme == null) {
            return false;
        }
        String host = method.getParams().getVirtualHost();
        if (host == null) {
            host = conn.getHost();
        }
        int port = conn.getPort();
        AuthScope authscope = new AuthScope(
            host, port, 
            authscheme.getRealm(), 
            authscheme.getSchemeName());
        
        if (LOG.isDebugEnabled()) {
            LOG.debug("Authentication scope: " + authscope);
        }
        if (authstate.isAuthAttempted() && authscheme.isComplete()) {
            // Already tried and failed
            Credentials credentials = promptForCredentials(
                authscheme, method.getParams(), authscope);
            if (credentials == null) {
                if (LOG.isInfoEnabled()) {
                    LOG.info("Failure authenticating with " + authscope);
                }
                return false;
            } else {
                return true;
            }
        } else {
            authstate.setAuthAttempted(true);
            Credentials credentials = this.state.getCredentials(authscope);
            if (credentials == null) {
                credentials = promptForCredentials(
                    authscheme, method.getParams(), authscope);
            }
            if (credentials == null) {
                if (LOG.isInfoEnabled()) {
                    LOG.info("No credentials available for " + authscope); 
                }
                return false;
            } else {
                return true;
            }
        }
    }

}