public async Task <DeviceFingerPrint> GenerateDeviceFingerPrint(RandomDeviceInfo randomDeviceInfo)
{
string deviceFingerPrintRaw = _GenerateDeviceFingerPrintRaw(randomDeviceInfo);
return(new DeviceFingerPrint(deviceFingerPrintRaw,
await _GetFingerPrintSignature(deviceFingerPrintRaw, randomDeviceInfo),
LoginUtils.GetMD5(deviceFingerPrintRaw)));
}
private async Task <InitialCsrfToken> _GetCsrfToken(DeviceFingerPrint deviceFingerPrint, RandomDeviceInfo randomDeviceInfo)
{
// Declare HttpClient
var httpHandler = new HttpClientHandler()
{
CookieContainer = _cookieContainer
};
var httpClient = new HttpClient(httpHandler)
{
BaseAddress = new Uri("https://login.xunlei.com")
};
// Prepare the header
httpClient.DefaultRequestHeaders.UserAgent.ParseAdd(randomDeviceInfo.userAgent);
httpClient.DefaultRequestHeaders.Add("Referer", randomDeviceInfo.referrer);
// Prepare the signature and submit
string stringContent = string.Format("xl_fp_raw={0}&xl_fp={1}&xl_fp_sign={2}&cachetime={3}",
deviceFingerPrint.DeviceFingerPrintRaw, deviceFingerPrint.DeviceFingerPrintChecksum,
deviceFingerPrint.DeviceFingerPrintSingature, DateTimeOffset.Now.ToUnixTimeMilliseconds());
// Merge into a POST content
var postContent = new StringContent(stringContent, Encoding.UTF8, "text/plain");
// Fire the hole!
var httpResponse = await httpClient.PostAsync(string.Format("/risk?cmd=report",
DateTimeOffset.Now.ToUnixTimeMilliseconds().ToString()), postContent);
// If not successful, return an empty string (to shut up the compiler!)
if (!httpResponse.IsSuccessStatusCode)
{
httpClient.Dispose();
return(new InitialCsrfToken()
{
ErrorMessage = string.Format("HTTP {0} - {1}", ((int)httpResponse.StatusCode).ToString(),
httpResponse.ReasonPhrase),
IsSuccessful = false
});
}
// Get device ID from cookie container
// The device ID will be granted by Thunder's server (https://login.xunlei.com/risk?cmd=report)
// The format of a device ID is something like this:
// wdi10.abcabcabcabcabbabcabccabcabceeabcabcaabcabcabcaabcabcaaabcabcabc
string deviceId = LoginUtils.FindCookieValue(_cookieContainer, "deviceid", "http://xunlei.com");
// Then we need to get its MD5 hash, substring from it with length 32 (i.e. get the first 32 chars)
string csrfToken = LoginUtils.GetMD5(deviceId.Substring(0, 32));
// Dispose the http client and return
httpClient.Dispose();
return(new InitialCsrfToken()
{
IsSuccessful = true,
CsrfToken = csrfToken,
ErrorMessage = string.Empty
});
}