internal static void AddDigestAuth(this WebRequest client,string userName,string password,AuthenticationInfo authInfo)
{
// by adamfowleruk
// See Client Request at http://en.wikipedia.org/wiki/Digest_access_authentication
string ncUse = padNC(authInfo.nc);
authInfo.nc++; // incrememnt for subsequent requests
string ha1raw = userName + ":" + authInfo.realm + ":" + password;
string ha1 = CalculateMD5Hash(ha1raw);
string ha2raw = client.Method + ":" + client.RequestUri.PathAndQuery;
string ha2 = CalculateMD5Hash(ha2raw);
string md5rraw = ha1 + ":" + authInfo.nonce + ":" + ncUse + ":" + authInfo.cnonce + ":" + authInfo.qop + ":" + ha2;
string response = CalculateMD5Hash(md5rraw);
string header =
"Digest username=\"" + userName + "\", realm=\"" + authInfo.realm + "\", nonce=\"" + authInfo.nonce + "\", uri=\"" +
client.RequestUri.PathAndQuery + "\", cnonce=\"" + authInfo.cnonce + "\", nc=" + ncUse + ", qop=\"" + authInfo.qop + "\", response=\"" + response +
"\", opaque=\"" + authInfo.opaque + "\"";
client.Headers [HttpHeaders.Authorization] = header;
}
internal static void AddAuthInfo(this WebRequest client,string userName,string password,AuthenticationInfo authInfo) {
if ("basic".Equals (authInfo.method)) {
client.AddBasicAuth (userName, password); // FIXME AddBasicAuth ignores the server provided Realm property. Potential Bug.
} else if ("digest".Equals (authInfo.method)) {
// do digest auth header using auth info
// auth info saved in ServiceClientBase for subsequent requests
client.AddDigestAuth (userName, password, authInfo);
}
}