public bool ValidateToken(TokenModel token)
{
var filter = Builders <BsonDocument> .Filter.Eq("AuthToken", token.AuthToken);
var projection = Builders <BsonDocument> .Projection.Exclude("_id");
var docs = tokenCollection.Find(filter).Project(projection).ToList();
TokenModel existingToken = Newtonsoft.Json.JsonConvert.DeserializeObject <TokenModel>(docs[0].ToJson());
DateTime existingTokenExpiresOn = Convert.ToDateTime(existingToken.ExpiresOn);
if (existingToken != null && !(DateTime.Now > existingTokenExpiresOn))
{
existingToken.ExpiresOn = existingTokenExpiresOn.AddSeconds(
Convert.ToDouble(ConfigurationManager.AppSettings["AuthTokenExpiry"])).ToString("yyyy-MM-dd HH:mm:ss");
try
{
BsonDocument doc = BsonSerializer.Deserialize <BsonDocument>(existingToken.ToJson());
tokenCollection.ReplaceOneAsync(filter, doc);
}
catch (System.Exception ex)
{
throw new Exception("Error occured while inserting token" + ex.Message);
}
return(true);
}
return(false);
}
public TokenModel GenerateToken(string username)
{
//first delete existing token if available
var filter = Builders <BsonDocument> .Filter.Eq("UserName", username);
var projection = Builders <BsonDocument> .Projection.Exclude("_id");
if (tokenCollection.Find(filter).Project(projection) != null)
{
var docs = tokenCollection.Find(filter).Project(projection).ToList();
if (docs != null && docs.Count > 0)
{
TokenModel existingToken = Newtonsoft.Json.JsonConvert.DeserializeObject <TokenModel>(docs[0].ToJson());
bool deleted = DeleteToken(existingToken);
if (!deleted)
{
return(null);
}
}
}
//then create a new token
string token = Guid.NewGuid().ToString();
string issuedOn = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
string expiredOn = DateTime.Now.AddSeconds(Convert.ToDouble(ConfigurationManager.AppSettings["AuthTokenExpiry"])).ToString("yyyy-MM-dd HH:mm:ss");
var tokenModel = new TokenModel()
{
UserName = username,
IssuedOn = issuedOn,
ExpiresOn = expiredOn,
AuthToken = token
};
try
{
var jsonWriterSettings = new JsonWriterSettings {
OutputMode = JsonOutputMode.Strict
};
BsonDocument doc = BsonSerializer.Deserialize <BsonDocument>(tokenModel.ToJson(jsonWriterSettings));
tokenCollection.InsertOneAsync(doc);
}
catch (System.Exception ex)
{
throw new Exception("Error occured while inserting token" + ex.Message);
//return null;
}
return(tokenModel);
}
public void Test1()
{
var model = new TokenModel
{
AccessToken = Rand.NextString(32),
TokenType = "token",
ExpireIn = 7200,
RefreshToken = Rand.NextString(32),
};
var json = model.ToJson();
var rs = "{\"access_token\":\"{access_token}\",\"token_type\":\"token\",\"expire_in\":7200,\"refresh_token\":\"{refresh_token}\"}";
rs = rs.Replace("{access_token}", model.AccessToken)
.Replace("{refresh_token}", model.RefreshToken);
Assert.Equal(rs, json);
}
