// _perform_auth_request
private Dictionary <string, string> PerformAuthRequest(object data)
{
string result = string.Empty;
try
{
authUrl.WithHeader("User-Agent", userAgent)
.PostUrlEncodedAsync(data)
.ReceiveString()
.ContinueWith
(
(e) =>
{
result = e.Result;
}
)
.Wait();
}
catch (WebException ex)
{
result = new StreamReader(ex.Response.GetResponseStream()).ReadToEnd();
}
return(GoogleKeyUtils.ParseAuthResponse(result));
}
private static async Task <Dictionary <string, string> > PerformAuthRequest(Dictionary <string, string> data)
{
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.UserAgent.TryParseAdd(UserAgent);
var postResponse = await client.PostAsync(AuthUrl, new FormUrlEncodedContent(data.ToArray()));
var result = await postResponse.Content.ReadAsStringAsync();
return(GoogleKeyUtils.ParseAuthResponse(result));
}
}
// signature
public static string CreateSignature(string email, string password, RSAParameters key)
{
IAsymmetricKeyAlgorithmProvider alg = PCLCrypto.WinRTCrypto.AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithm.RsaOaepSha1);
var importedKey = alg.ImportParameters(key);
var hasher = WinRTCrypto.HashAlgorithmProvider.OpenAlgorithm(HashAlgorithm.Sha1);
byte[] prefix = { 0x00 };
byte[] keyArray = GoogleKeyUtils.KeyToStruct(key);
byte[] something = Encoding.UTF8.GetBytes(email + "\x00" + password);
byte[] hash = hasher.HashData(keyArray).Take(4).ToArray();
byte[] encrypted = WinRTCrypto.CryptographicEngine.Encrypt(importedKey, something, null);
byte[] combinedBytes = DataTypeUtils.CombineBytes(prefix, hash, encrypted);
return(DataTypeUtils.UrlSafeBase64(combinedBytes));
}
public async Task <Dictionary <string, string> > PerformMasterLogin(string service = "ac2dm",
string deviceCountry = "us", string operatorCountry = "us", string lang = "en", int sdkVersion = 21)
{
var signature = GoogleKeyUtils.CreateSignature(_email, _password, _androidKey);
var dict = new Dictionary <string, string> {
{ "accountType", "HOSTED_OR_GOOGLE" },
{ "Email", _email },
{ "has_permission", 1.ToString() },
{ "add_account", 1.ToString() },
{ "EncryptedPasswd", signature },
{ "service", service },
{ "source", "android" },
{ "device_country", deviceCountry },
{ "operatorCountry", operatorCountry },
{ "lang", lang },
{ "sdk_version", sdkVersion.ToString() }
};
return(await PerformAuthRequest(dict));
}
// perform_master_login
public Dictionary <string, string> PerformMasterLogin(string service = "ac2dm",
string deviceCountry = "us", string operatorCountry = "us", string lang = "en", int sdkVersion = 21)
{
string signature = GoogleKeyUtils.CreateSignature(email, password, androidKey);
var data = new
{
accountType = "HOSTED_OR_GOOGLE",
Email = email,
has_permission = 1.ToString(),
add_account = 1.ToString(),
EncryptedPasswd = signature,
service = service,
source = "android",
device_country = deviceCountry,
operatorCountry = operatorCountry,
lang = lang,
sdk_version = sdkVersion.ToString()
};
return(PerformAuthRequest(data));
}
