zTmTeUWb

1                foreach (var keyPair in IPNValues)
2                {
3                    var key = HttpUtility.UrlDecode(keyPair.Key);
4
5                    switch (key)
6                    {
7                        case "IPN_PID[]":
8                            size = keyPair.Value.Length;
9                            PlainDataTohash.Append(size);
10                            PlainDataTohash.Append(keyPair.Value);
11                            break;
12                        case "IPN_PNAME[]":
13                            size = keyPair.Value.Length;
14                            PlainDataTohash.Append(size);
15                            PlainDataTohash.Append(keyPair.Value);
16                            break;
17                        case "IPN_DATE":
18                            size = keyPair.Value.Length;
19                            PlainDataTohash.Append(size);
20                            PlainDataTohash.Append(keyPair.Value);
21                            break;
22                    }
23                }
24
25                var now = DateTime.Now.ToString("yyyyMMddHHmmss");
26                size = now.Length;
27                PlainDataTohash.Append(size);
28                PlainDataTohash.Append(now);
29                string HashData = PlainDataTohash.ToString();
30
31                //Get user
32                var userId = IPNValues["EXTERNAL_CUSTOMER_REFERENCE"];
33                var user = uow.UserInfoRepository.GetByGuid(new Guid(userId));
34
35                var conf = uow.TwoCheckoutRepo.GetByTenantId(user.TenantRefId);
36
37                hash = CreateHMACHash(HashData, conf.SecretKey);
38
39                hash = "<EPAYMENT>" + now + "|" + hash + "</EPAYMENT>";
40                Log.Information("2checkout HashData: " + HashData);
41                Log.Information("2checkout response hash: " + hash);
42
43
44
45        public string CreateHMACHash(string data, string secretKey)
46        {
47            byte[] secretBytes = Encoding.ASCII.GetBytes(secretKey);
48            string hash = string.Empty;
49
50            using (HMACMD5 hmac = new HMACMD5(secretBytes))
51            {
52                byte[] stringBytes = Encoding.ASCII.GetBytes(data);
53                var bytes = hmac.ComputeHash(stringBytes);
54                foreach (byte x in bytes)
55                {
56                    hash += String.Format("{0:x2}", x);
57                }
58            }
59
60            return hash;
61        }