/// <summary>
/// AuthCode
/// </summary>
/// <param name="sourceStr">源字符串</param>
/// <param name="operation">操作</param>
/// <param name="keyStr">KEY</param>
/// <param name="expiry">过期时间</param>
/// <returns></returns>
private static string authCode(string sourceStr, AuthCodeMethod operation, string keyStr, int expiry = 0)
{
if (string.IsNullOrEmpty(sourceStr)) return "";
const int ckeyLength = 4;
var source = Encode.GetBytes(sourceStr);
var key = Encode.GetBytes(keyStr);
key = Md5(key);
var keya = Md5(SubBytes(key, 0, 0x10));
var keyb = Md5(SubBytes(key, 0x10, 0x10));
var keyc = getKeyc(ckeyLength, operation, source);
var cryptkey = AddBytes(keya, Md5(AddBytes(keya, keyc)));
var keyLength = cryptkey.Length;
source = getCKey(expiry, ckeyLength, operation, source, keyb);
var sourceLength = source.Length;
var box = getBox();
var rndkey = getRndkey(cryptkey, keyLength);
rndBox(box, rndkey);
var result = getResult(source, box, sourceLength);
return operation == AuthCodeMethod.Decode
? check(keyb, result)
: BytesToString(keyc) + Convert.ToBase64String(result).Replace("=", "");
}
/// <summary>
/// AuthCode
/// </summary>
/// <param name="sourceStr">源字符串</param>
/// <param name="operation">操作</param>
/// <param name="keyStr">KEY</param>
/// <param name="expiry">过期时间</param>
/// <returns></returns>
private static string authCode(string sourceStr, AuthCodeMethod operation, string keyStr, int expiry = 0)
{
const int ckeyLength = 4;
byte[] source = Encode.GetBytes(sourceStr);
byte[] key = Encode.GetBytes(keyStr);
key = Md5(key);
byte[] keya = Md5(SubBytes(key, 0, 0x10));
byte[] keyb = Md5(SubBytes(key, 0x10, 0x10));
byte[] keyc = getKeyc(ckeyLength, operation, source);
byte[] cryptkey = AddBytes(keya, Md5(AddBytes(keya, keyc)));
int keyLength = cryptkey.Length;
source = getCKey(expiry, ckeyLength, operation, source, keyb);
int sourceLength = source.Length;
int[] box = getBox();
int[] rndkey = getRndkey(cryptkey, keyLength);
rndBox(box, rndkey);
byte[] result = getResult(source, box, sourceLength);
return(operation == AuthCodeMethod.Decode
? check(keyb, result)
: BytesToString(keyc) + Convert.ToBase64String(result).Replace("=", ""));
}
/// <summary>
/// 得到keyc
/// </summary>
/// <param name="ckeyLength">ckey长度</param>
/// <param name="operation">操作</param>
/// <param name="source">数据源</param>
/// <returns></returns>
private static byte[] getKeyc(int ckeyLength, AuthCodeMethod operation, byte[] source)
{
return((ckeyLength > 0)
? ((operation == AuthCodeMethod.Decode)
? SubBytes(source, 0, ckeyLength)
: RandomBytes(ckeyLength))
: new byte[0]);
}
public string SendLogingRequest(BCClientModel clientModel, Action <BCClientModel> callback)
{
string HtmlResult = "";
AuthCodeMethod.GetAccessTokenAsync(clientModel, model =>
{
Url = new Uri(clientModel.url);
parameters = model.url + "?response_type=" + model.response_type + "&client_id=" + model.client_id + "&redirect_uri=" + model.redirect_uri + "&scope=openid" + model.scope + "offline_access&state=" + clientModel.state +
"&code_challenge=" + model.code_challenge + "&code_challenge_method=" + model.code_challenge_method + "&nonce=" + model.nonce + "&response_mode=form_post";
using (WebClient wc = new WebClient())
{
HtmlResult = wc.DownloadString(parameters);
}
callback(model);
});
return(parameters);
}
/// <summary>
/// 得到CKey
/// </summary>
/// <param name="expiry">过期时间</param>
/// <param name="ckeyLength">CKey长度</param>
/// <param name="operation">操作</param>
/// <param name="source">数据源</param>
/// <param name="keyb">Keyb</param>
/// <returns></returns>
private byte[] getCKey(int expiry, int ckeyLength, AuthCodeMethod operation, byte[] source, byte[] keyb)
{
if (operation == AuthCodeMethod.Decode)
{
while (source.Length % 4 != 0)
{
source = AddBytes(source, Encode.GetBytes("="));
}
source = Convert.FromBase64String(BytesToString(SubBytes(source, ckeyLength)));
}
else
{
source =
AddBytes(
(expiry != 0
? Encode.GetBytes((expiry + PhpTimeNow()).ToString())
: Encode.GetBytes("0000000000")),
SubBytes(Md5(AddBytes(source, keyb)), 0, 0x10), source);
}
return(source);
}
/// <summary>
/// 得到keyc
/// </summary>
/// <param name="ckeyLength">ckey长度</param>
/// <param name="operation">操作</param>
/// <param name="source">数据源</param>
/// <returns></returns>
private static byte[] getKeyc(int ckeyLength, AuthCodeMethod operation, byte[] source)
{
return (ckeyLength > 0)
? ((operation == AuthCodeMethod.Decode)
? SubBytes(source, 0, ckeyLength)
: RandomBytes(ckeyLength))
: new byte[0];
}
/// <summary>
/// 得到CKey
/// </summary>
/// <param name="expiry">过期时间</param>
/// <param name="ckeyLength">CKey长度</param>
/// <param name="operation">操作</param>
/// <param name="source">数据源</param>
/// <param name="keyb">Keyb</param>
/// <returns></returns>
private static byte[] getCKey(int expiry, int ckeyLength, AuthCodeMethod operation, byte[] source, byte[] keyb)
{
if (operation == AuthCodeMethod.Decode)
{
while (source.Length % 4 != 0)
{
source = AddBytes(source, Encode.GetBytes("="));
}
source = Convert.FromBase64String(BytesToString(SubBytes(source, ckeyLength)));
}
else
{
source =
AddBytes(
(expiry != 0
? Encode.GetBytes((expiry + PhpTimeNow()).ToString())
: Encode.GetBytes("0000000000")),
SubBytes(Md5(AddBytes(source, keyb)), 0, 0x10), source);
}
return source;
}
private static string AuthCode(string sourceStr, AuthCodeMethod operation, string keyStr, int expiry = 0)
{
const int ckeyLength = 4;
var source = Charset.GetBytes(sourceStr);
var key = Charset.GetBytes(keyStr);
key = Md5(key);
var keya = Md5(SubBytes(key, 0, 0x10));
var keyb = Md5(SubBytes(key, 0x10, 0x10));
var keyc = (operation == AuthCodeMethod.Decode)
? SubBytes(source, 0, ckeyLength)
: RandomBytes(ckeyLength);
var cryptkey = AddBytes(keya, Md5(AddBytes(keya, keyc)));
var keyLength = cryptkey.Length;
if (operation == AuthCodeMethod.Decode)
{
while (source.Length % 4 != 0)
{
source = AddBytes(source, Charset.GetBytes("="));
}
source = Convert.FromBase64String(BytesToString(SubBytes(source, ckeyLength)));
}
else
{
source = AddBytes(expiry != 0
? Charset.GetBytes((expiry + DateTime.Now.ToTimestamp()).ToString())
: Charset.GetBytes("0000000000"), SubBytes(Md5(AddBytes(source, keyb)), 0, 0x10), source);
}
var sourceLength = source.Length;
var box = new int[256];
for (var k = 0; k < 256; k++)
{
box[k] = k;
}
var rndkey = new int[256];
for (var i = 0; i < 256; i++)
{
rndkey[i] = cryptkey[i % keyLength];
}
for (int j = 0, i = 0; i < 256; i++)
{
j = (j + box[i] + rndkey[i]) % 256;
var tmp = box[i];
box[i] = box[j];
box[j] = tmp;
}
var result = new byte[sourceLength];
for (int a = 0, j = 0, i = 0; i < sourceLength; i++)
{
a = (a + 1) % 256;
j = (j + box[a]) % 256;
var tmp = box[a];
box[a] = box[j];
box[j] = tmp;
result[i] = (byte)(source[i] ^ (box[(box[a] + box[j]) % 256]));
}
if (operation == AuthCodeMethod.Decode)
{
var time = long.Parse(BytesToString(SubBytes(result, 0, 10)));
if ((time == 0 || time - DateTime.Now.ToTimestamp() > 0) &&
BytesToString(SubBytes(result, 10, 16)) ==
BytesToString(SubBytes(Md5(AddBytes(SubBytes(result, 26), keyb)), 0, 16)))
{
return(BytesToString(SubBytes(result, 26)));
}
return(string.Empty);
}
return($"{BytesToString(keyc)}{Convert.ToBase64String(result).Replace("=", string.Empty)}");
}
