Examples with DigestAlgorithm io.undertow.security.idm.DigestAlgorithm used on opensource projects

Example 6 with DigestAlgorithm

use of io.undertow.security.idm.DigestAlgorithm in project undertow by undertow-io.

the class DigestAuthenticationMechanism method sendChallenge.

@Override
public ChallengeResult sendChallenge(final HttpServerExchange exchange, final SecurityContext securityContext) {
    DigestContext context = exchange.getAttachment(DigestContext.ATTACHMENT_KEY);
    boolean stale = context == null ? false : context.isStale();
    StringBuilder rb = new StringBuilder(DIGEST_PREFIX);
    rb.append(Headers.REALM.toString()).append("=\"").append(realmName).append("\",");
    rb.append(Headers.DOMAIN.toString()).append("=\"").append(domain).append("\",");
    // based on security constraints.
    rb.append(Headers.NONCE.toString()).append("=\"").append(nonceManager.nextNonce(null, exchange)).append("\",");
    // Not currently using OPAQUE as it offers no integrity, used for session data leaves it vulnerable to
    // session fixation type issues as well.
    rb.append(Headers.OPAQUE.toString()).append("=\"00000000000000000000000000000000\"");
    if (stale) {
        rb.append(",stale=true");
    }
    if (supportedAlgorithms.size() > 0) {
        // This header will need to be repeated once for each algorithm.
        rb.append(",").append(Headers.ALGORITHM.toString()).append("=%s");
    }
    if (qopString != null) {
        rb.append(",").append(Headers.QOP.toString()).append("=\"").append(qopString).append("\"");
    }
    String theChallenge = rb.toString();
    HeaderMap responseHeader = exchange.getResponseHeaders();
    if (supportedAlgorithms.isEmpty()) {
        responseHeader.add(WWW_AUTHENTICATE, theChallenge);
    } else {
        for (DigestAlgorithm current : supportedAlgorithms) {
            responseHeader.add(WWW_AUTHENTICATE, String.format(theChallenge, current.getToken()));
        }
    }
    return new ChallengeResult(true, UNAUTHORIZED);
}