private byte[] imm_computeAUTH(String user, String pass, String serial, long noune)
{
String ha1_str = user + ":" + serial + ":" + pass;
//WSLOG(String.Format("AUTH: {0}:{1} serial={2} noune={3:X}", user, pass, serial, noune));
byte[] bytes_to_hash = YAPI.DefaultEncoding.GetBytes(ha1_str);
IBuffer md5digest = _md5Alg.HashData(bytes_to_hash.AsBuffer());
byte[] digest = md5digest.ToArray();
String ha1 = YAPIContext.imm_bytesToHexStr(digest, 0, digest.Length).ToLower();
String sha1_raw = ha1 + string.Format("{0:x2}{1:x2}{2:x2}{3:x2}", noune & 0xff, (noune >> 8) & 0xff, (noune >> 16) & 0xff, (noune >> 24) & 0xff);
//WSLOG("raw:" + sha1_raw);
byte[] bytes_to_sha1 = YAPI.DefaultEncoding.GetBytes(sha1_raw);
IBuffer sha1digest = _sha1Alg.HashData(bytes_to_sha1.AsBuffer());
return(sha1digest.ToArray());
}
// Return an Authorization header for a given request
internal virtual string imm_getAuthorization(string request)
{
if (_http_params.User.Length == 0 || _http_realm.Length == 0)
{
return("");
}
_nounce_count++;
int pos = request.IndexOf(' ');
string method = request.Substring(0, pos);
int enduri = request.IndexOf(' ', pos + 1);
if (enduri < 0)
{
enduri = request.Length;
}
string uri = request.Substring(pos + 1, enduri - (pos + 1));
string nc = string.Format("{0:x8}", _nounce_count);
string cnonce = string.Format("{0:x8}", _randGen.Next());
string plaintext = method + ":" + uri;
byte[] bytes_to_hash = YAPI.DefaultEncoding.GetBytes(plaintext);
var alg = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
IBuffer md5digest = alg.HashData(bytes_to_hash.AsBuffer());
byte[] digest = md5digest.ToArray();
string ha2 = YAPIContext.imm_bytesToHexStr(digest, 0, digest.Length).ToLower();
plaintext = _ha1 + ":" + _nounce + ":" + nc + ":" + cnonce + ":auth:" + ha2;
bytes_to_hash = YAPI.DefaultEncoding.GetBytes(plaintext);
alg = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
md5digest = alg.HashData(bytes_to_hash.AsBuffer());
digest = md5digest.ToArray();
string response = YAPIContext.imm_bytesToHexStr(digest, 0, digest.Length).ToLower();
//System.out.print(String.format("Auth Resp ha1=%s nonce=%s nc=%s cnouce=%s ha2=%s -> %s\n", _ha1, _nounce, nc, cnonce, ha2, response));
return
(string.Format(
"Authorization: Digest username=\"{0}\", realm=\"{1}\", nonce=\"{2}\", uri=\"{3}\", qop=auth, nc={4}, cnonce=\"{5}\", response=\"{6}\", opaque=\"{7}\"\r\n",
_http_params.User, _http_realm, _nounce, uri, nc, cnonce, response, _opaque));
}
// Update the hub internal variables according
// to a received header with WWW-Authenticate
//todo: verify authentification
internal virtual void imm_parseWWWAuthenticate(string header)
{
int pos = header.IndexOf("\r\nWWW-Authenticate:", StringComparison.Ordinal);
if (pos == -1)
{
return;
}
header = header.Substring(pos + 19);
int eol = header.IndexOf('\r');
if (eol >= 0)
{
header = header.Substring(0, eol);
}
_http_realm = "";
_nounce = "";
_opaque = "";
_nounce_count = 0;
string[] tags = header.Split(' ');
char[] delim =
{
'[',
'=',
'\"',
',',
']'
};
foreach (string tag in tags)
{
string[] parts = tag.Split(delim, StringSplitOptions.RemoveEmptyEntries);
string name, value;
if (parts.Length == 2)
{
name = parts[0];
value = parts[1];
}
else if (parts.Length == 3)
{
name = parts[0];
value = parts[2];
}
else
{
continue;
}
switch (name)
{
case "realm":
_http_realm = value;
break;
case "nonce":
_nounce = value;
break;
case "opaque":
_opaque = value;
break;
}
}
string plaintext = _http_params.User + ":" + _http_realm + ":" + _http_params.Pass;
byte[] bytes_to_hash = YAPI.DefaultEncoding.GetBytes(plaintext);
var alg = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
IBuffer md5digest = alg.HashData(bytes_to_hash.AsBuffer());
byte[] digest = md5digest.ToArray();
_ha1 = YAPIContext.imm_bytesToHexStr(digest, 0, digest.Length).ToLower();
}
