SamFirm.NET/SamFirm/Utils/FUSClient.cs at 3db0ab330fd28932229d5877594f4f0bfa25c642 · jesec/SamFirm.NET · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
using System;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;

namespace SamFirm.Utils
{
    internal class FUSRequest : WebRequest
    {
        public static new HttpWebRequest Create(string requestUriString)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUriString);
            request.Headers["Cache-Control"] = "no-cache";
            request.UserAgent = "Kies2.0_FUS";
            request.Headers.Add("Authorization",
                $"FUS nonce=\"{FUSClient.Nonce}\", signature=\"{(FUSClient.NonceDecrypted.Length > 0 ? Auth.GetAuthorization(FUSClient.NonceDecrypted) : "")}\", nc=\"\", type=\"\", realm=\"\", newauth=\"1\"");
            request.CookieContainer = FUSClient.Cookies;
            return request;
        }
    }

    internal static class FUSClient
    {
        public static CookieContainer Cookies = new CookieContainer();
        public static string Nonce { get; set; } = string.Empty;
        public static string NonceDecrypted { get; set; } = string.Empty;

        public static int DownloadBinary(string path, string file, string saveTo)
        {
            long num = 0L;
            HttpWebRequest wr = FUSRequest.Create("http://cloud-neofussvr.samsungmobile.com/NF_DownloadBinaryForMass.do?file=" + path + file);
            wr.Method = "GET";
            wr.Timeout = 0x61a8;
            wr.ReadWriteTimeout = 0x61a8;
            using (HttpWebResponse response = (HttpWebResponse)wr.GetFUSResponse())
            {
                if (response == null)
                {
                    Console.WriteLine("Error DownloadBinary(): response is null.");
                    return 0x385;
                }
                if ((response.StatusCode != HttpStatusCode.OK) && (response.StatusCode != HttpStatusCode.PartialContent))
                {
                    Console.WriteLine("Error DownloadBinary(): " + ((int)response.StatusCode));
                }
                else
                {
                    long total = long.Parse(response.GetResponseHeader("content-length")) + num;
                    byte[] buffer = new byte[0x2000];
                    try
                    {
                        File.HandleEncryptedFile(response.GetResponseStream(), saveTo);
                    }
                    catch (Exception exception)
                    {
                        Console.WriteLine("Error DownloadBinary(): ");
                        Console.WriteLine(exception.ToString());
                        return -1;
                    }
                }
                return 0;
            }
        }

        public static int DownloadBinaryInform(string xml, out string xmlresponse) =>
            XMLFUSRequest("https://neofussvr.sslcs.cdngc.net/NF_DownloadBinaryInform.do", xml, out xmlresponse);

        public static int DownloadBinaryInit(string xml, out string xmlresponse) =>
            XMLFUSRequest("https://neofussvr.sslcs.cdngc.net/NF_DownloadBinaryInitForMass.do", xml, out xmlresponse);

        public static int GenerateNonce()
        {
            HttpWebRequest wr = FUSRequest.Create("https://neofussvr.sslcs.cdngc.net/NF_DownloadGenerateNonce.do");
            wr.Method = "POST";
            wr.ContentLength = 0L;
            using (HttpWebResponse response = (HttpWebResponse)wr.GetFUSResponse())
            {
                if (response == null)
                {
                    return 0x385;
                }
                return (int)response.StatusCode;
            }
        }

        public static void SetReconnect()
        {
            // TODO: Not implemented.
        }

        private static int XMLFUSRequest(string URL, string xml, out string xmlresponse)
        {
            xmlresponse = null;
            HttpWebRequest wr = FUSRequest.Create(URL);
            wr.CookieContainer = Cookies;
            wr.Method = "POST";
            byte[] bytes = Encoding.ASCII.GetBytes(Regex.Replace(xml, @"\r\n?|\n|\t", string.Empty));
            wr.ContentLength = bytes.Length;
            using (Stream stream = wr.GetRequestStream())
            {
                stream.Write(bytes, 0, bytes.Length);
            }
            using (HttpWebResponse response = (HttpWebResponse)wr.GetFUSResponse())
            {
                if (response == null)
                {
                    return 0x385;
                }
                if (response.StatusCode == HttpStatusCode.OK)
                {
                    try
                    {
                        xmlresponse = new StreamReader(response.GetResponseStream()).ReadToEnd();
                    }
                    catch (Exception)
                    {
                        return 900;
                    }
                }
                return (int)response.StatusCode;
            }
        }

        public static WebResponse GetFUSResponse(this WebRequest wr)
        {
            try
            {
                WebResponse response = wr.GetResponse();
                if (response.Headers.AllKeys.Contains("NONCE"))
                {
                    Nonce = response.Headers["NONCE"];
                    NonceDecrypted = Auth.DecryptNonce(Nonce);
                }
                return response;
            }
            catch (WebException exception)
            {
                Console.WriteLine("Error GetResponseFUS() -> " + exception.ToString());
                if (exception.Status == WebExceptionStatus.NameResolutionFailure)
                {
                    SetReconnect();
                }
                return exception.Response;
            }
        }
    }
}