public static async Task SendPasswordRecoveryEmail(MongoWrapper mongoWrapper,
SmtpConfiguration smtpConfig,
User user)
{
var confirmationCollection = mongoWrapper.Database.GetCollection <ReferenceToken>(typeof(ReferenceToken).Name);
var tokenTask = GeneralUtils.GenerateRandomString(6, "1234567890".ToCharArray());
string token = await tokenTask;
ReferenceToken confirmation = new ReferenceToken()
{
UserId = user._id,
TokenType = TokenType.PasswordRecovery,
_id = token,
};
var insertConfirmationTask = confirmationCollection.InsertOneAsync(confirmation);
await insertConfirmationTask;
var sendEmailTask = SendEmail
(
smtpConfig: smtpConfig,
body: $"Você está recebendo este e-mail pois uma mudança de senha foi requisitada. Caso não tenha requisitado uma mudança de senha, ignore este e-mail.<br>Seu código de nova senha FindFM: <b>{token}</b>",
subject: "[FindFM] Recuperação de senha - Código",
encoding: Encoding.UTF8,
from: new MailAddress(smtpConfig.Email, smtpConfig.DisplayName, Encoding.UTF8),
to: new[] { new MailAddress(user.Email, user.FullName, Encoding.UTF8) }
);
var sendEmailContinuation = sendEmailTask.ContinueWith(t =>
{
LOGGER.Error(t.Exception, "Sending password recovery e-mail has failed!");
},
TaskContinuationOptions.OnlyOnFaulted);
await sendEmailTask;
}
public static async Task SendConfirmationEmail(MongoWrapper mongoWrapper,
SmtpConfiguration smtpConfig,
User user)
{
var confirmationCollection = mongoWrapper.Database.GetCollection <ReferenceToken>(typeof(ReferenceToken).Name);
var tokenTask = GeneralUtils.GenerateRandomString(6, "1234567890".ToCharArray());
string token = await tokenTask;
ReferenceToken confirmation = new ReferenceToken()
{
UserId = user._id,
TokenType = TokenType.Confirmation,
_id = token,
};
var insertConfirmationTask = confirmationCollection.InsertOneAsync(confirmation);
await insertConfirmationTask;
var sendEmailTask = SendEmail
(
smtpConfig: smtpConfig,
body: $"Seu código de confirmação FindFM: <b>{token}</b>",
subject: "[FindFM] Confirmação de E-mail",
encoding: Encoding.UTF8,
from: new MailAddress(smtpConfig.Email, smtpConfig.DisplayName, Encoding.UTF8),
to: new[] { new MailAddress(user.Email, user.FullName, Encoding.UTF8) }
);
var sendEmailContiuation = sendEmailTask.ContinueWith(t =>
{
LOGGER.Error(t.Exception, "Sending confirmation e-mail has failed!");
},
TaskContinuationOptions.OnlyOnFaulted);
await sendEmailTask;
}
/// <summary>
/// Resolves a token to a FileReference, if the token exists for this user.
/// The action should be called once the calling code can ensure the file is handled ok.
/// </summary>
/// <param name="mongoWrapper">For accessing the database</param>
/// <param name="tokenId">The token ID to search for</param>
/// <param name="userId">The user ID to correlate with the token</param>
/// <returns>A Tuple of the FileReference and an async action to expire the token</returns>
public static async Task <(FileReference, Func <Task>)> GetFileForReferenceToken(MongoWrapper mongoWrapper, string tokenId, ObjectId userId)
{
var tokenCollection = mongoWrapper.Database.GetCollection <DataReferenceToken <ConsumableData <ObjectId> > >(nameof(ReferenceToken));
var tokenFilterBuilder = new FilterDefinitionBuilder <DataReferenceToken <ConsumableData <ObjectId> > >();
var tokenFilter = tokenFilterBuilder.And
(
GeneralUtils.NotDeactivated(tokenFilterBuilder),
tokenFilterBuilder.Eq(t => t._id, tokenId),
tokenFilterBuilder.Eq(t => t.UserId, userId)
);
var tokenUpdateBuilder = new UpdateDefinitionBuilder <DataReferenceToken <ConsumableData <ObjectId> > >();
var tokenUpdate = tokenUpdateBuilder
.Set(t => t.DeactivationDate, DateTime.UtcNow)
.Set(t => t.AdditionalData.IsConsumed, true);
DataReferenceToken <ConsumableData <ObjectId> > token = (await tokenCollection.FindAsync(tokenFilter, new FindOptions <DataReferenceToken <ConsumableData <ObjectId> >, DataReferenceToken <ConsumableData <ObjectId> > >
{
Limit = 1,
AllowPartialResults = false,
})).SingleOrDefault();
if (token == null)
{
throw new ValidationException("Token de Arquivo não encontrado!");
}
var gridFsBucket = new GridFSBucket <ObjectId>(mongoWrapper.Database);
var fileFilterBuilder = new FilterDefinitionBuilder <GridFSFileInfo <ObjectId> >();
var fileFilter = fileFilterBuilder.Eq(finfo => finfo.Id, token.AdditionalData.Data);
var fileInfo = (await gridFsBucket.FindAsync(fileFilter, new GridFSFindOptions <ObjectId>
{
Limit = 1,
})).SingleOrDefault();
if (fileInfo == null)
{
throw new ApplicationException("Arquivo não encontrado, mas havia um token ativado referenciando-o!");
}
var fileReference = new FileReference
{
FileInfo = new Models.FileInfo
{
FileMetadata = BsonSerializer.Deserialize <FileMetadata>(fileInfo.Metadata),
Size = fileInfo.Length
},
_id = token.AdditionalData.Data
};
return
(
fileReference,
async() =>
{
var tokenUpdateTask = tokenCollection.UpdateOneAsync
(
tokenFilter,
tokenUpdate
);
var userCollection = mongoWrapper.Database.GetCollection <User>(nameof(User));
var userFilterBuilder = new FilterDefinitionBuilder <User>();
var userFilter = userFilterBuilder.And
(
GeneralUtils.NotDeactivated(userFilterBuilder),
userFilterBuilder.Eq(u => u._id, userId)
);
var userUpdateBuilder = new UpdateDefinitionBuilder <User>();
var userUpdate = userUpdateBuilder.Inc(u => u.FileBytesOccupied, fileReference.FileInfo.Size);
var userUpdateTask = userCollection.UpdateOneAsync
(
userFilter,
userUpdate
);
await tokenUpdateTask;
await userUpdateTask;
}
);
}