private static Task <IDictionary <string, string> > PerformMasterLoginAsync(string email, string password)
{
var signature = GoogleKeyUtils.CreateSignature(email, password, androidKey);
var request = GenerateBaseRequest(email, signature, "ac2dm");
request.Add("add_account", "1");
return(PerformAuthRequestAsync(request));
}
// signature
public static string CreateSignature(string email, string password, RSAParameters key)
{
using (var rsa = new RSACryptoServiceProvider())
{
rsa.ImportParameters(key);
var sha1 = SHA1.Create();
byte[] prefix = { 0x00 };
var hash = sha1.ComputeHash(GoogleKeyUtils.KeyToStruct(key)).Take(4).ToArray();
var encrypted = rsa.Encrypt(Encoding.UTF8.GetBytes(email + "\x00" + password), true);
return(DataTypeUtils.UrlSafeBase64(DataTypeUtils.CombineBytes(prefix, hash, encrypted)));
}
}
// 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 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(PerformAuthRequest(dict));
}
private async static Task <IDictionary <string, string> > PerformAuthRequestAsync(IDictionary <string, string> data)
{
var handler = new HttpClientHandler
{
AutomaticDecompression = DecompressionMethods.GZip,
AllowAutoRedirect = false
};
using (var tempHttpClient = new HttpClient(handler))
{
tempHttpClient.DefaultRequestHeaders.UserAgent.ParseAdd(userAgent);
HttpResponseMessage response;
using (var formUrlEncodedContent = new FormUrlEncodedContent(data))
{
response = await tempHttpClient.PostAsync(authUrl, formUrlEncodedContent).ConfigureAwait(false);
}
var content = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
return(GoogleKeyUtils.ParseAuthResponse(content));
}
}
// _perform_auth_request
private Dictionary <string, string> PerformAuthRequest(Dictionary <string, string> data)
{
NameValueCollection nvc = new NameValueCollection();
foreach (var kvp in data)
{
nvc.Add(kvp.Key.ToString(), kvp.Value.ToString());
}
using (WebClient client = new WebClient())
{
client.Headers.Add(HttpRequestHeader.UserAgent, userAgent);
string result;
try
{
byte[] response = client.UploadValues(authUrl, nvc);
result = Encoding.UTF8.GetString(response);
}
catch (WebException e)
{
result = new StreamReader(e.Response.GetResponseStream()).ReadToEnd();
}
return(GoogleKeyUtils.ParseAuthResponse(result));
}
}