DigestScheme.java 文件源码

/**
 * Creates digest-response header as defined in RFC2617.
 * 
 * @param credentials User credentials
 * @param digest The response tag's value as String.
 * 
 * @return The digest-response as String.
 */
private Header createDigestHeader(
        final Credentials credentials, 
        final String digest) {

    CharArrayBuffer buffer = new CharArrayBuffer(128);
    if (isProxy()) {
        buffer.append(AUTH.PROXY_AUTH_RESP);
    } else {
        buffer.append(AUTH.WWW_AUTH_RESP);
    }
    buffer.append(": Digest ");

    String uri = getParameter("uri");
    String realm = getParameter("realm");
    String nonce = getParameter("nonce");
    String opaque = getParameter("opaque");
    String response = digest;
    String algorithm = getParameter("algorithm");

    String uname = credentials.getUserPrincipal().getName();

    List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>(20);
    params.add(new BasicNameValuePair("username", uname));
    params.add(new BasicNameValuePair("realm", realm));
    params.add(new BasicNameValuePair("nonce", nonce));
    params.add(new BasicNameValuePair("uri", uri));
    params.add(new BasicNameValuePair("response", response));

    if (qopVariant != QOP_MISSING) {
        params.add(new BasicNameValuePair("qop", getQopVariantString()));
        params.add(new BasicNameValuePair("nc", NC));
        params.add(new BasicNameValuePair("cnonce", getCnonce()));
    }
    if (algorithm != null) {
        params.add(new BasicNameValuePair("algorithm", algorithm));
    }    
    if (opaque != null) {
        params.add(new BasicNameValuePair("opaque", opaque));
    }

    for (int i = 0; i < params.size(); i++) {
        BasicNameValuePair param = params.get(i);
        if (i > 0) {
            buffer.append(", ");
        }
        boolean noQuotes = "nc".equals(param.getName()) ||
                           "qop".equals(param.getName());
        BasicHeaderValueFormatter.DEFAULT
            .formatNameValuePair(buffer, param, !noQuotes);
    }
    return new BufferedHeader(buffer);
}