public string[] Validate(PostTeksArgs args)
{
if (args == null)
{
return new[] { "Null value." }
}
;
if (_Config.TemporaryExposureKeyCountMin > args.Keys.Length || args.Keys.Length > _Config.TemporaryExposureKeyCountMax)
{
return new[] { $"Invalid number of keys - {args.Keys.Length}." }
}
;
var keyErrors = new List <string>();
for (var i = 0; i < args.Keys.Length; i++)
{
keyErrors.AddRange(_TemporaryExposureKeyValidator.Valid(args.Keys[i]).Select(x => $"Key[{i}] - {x}"));
}
return(keyErrors.ToArray());
}
}
}
private async Task InnerExecuteAsync(byte[] signature, byte[] body)
{
_bodyBytes = body;
if ((signature?.Length ?? 0) != UniversalConstants.PostKeysSignatureByteCount)
{
_logger.WriteSignatureValidationFailed();
return;
}
try
{
var argsJson = Encoding.UTF8.GetString(_bodyBytes);
_argsObject = _jsonSerializer.Deserialize <PostTeksArgs>(argsJson);
}
catch (Exception e)
{
_logger.WritePostBodyParsingFailed(e);
return;
}
var base64Parser = new Base64();
var base64ParserResult = base64Parser.TryParseAndValidate(_argsObject.BucketId, UniversalConstants.BucketIdByteCount);
if (!base64ParserResult.Valid)
{
_logger.WriteBucketIdParsingFailed(_argsObject.BucketId, base64ParserResult.Messages);
return;
}
_bucketIdBytes = base64ParserResult.Item;
var messages = _keyValidator.Validate(_argsObject);
if (messages.Length > 0)
{
_logger.WriteTekValidationFailed(messages);
return;
}
var teks = _argsObject.Keys.Select(Mapper.MapToTek).ToArray();
foreach (var i in teks)
{
i.PublishAfter = _dateTimeProvider.Snapshot;
}
messages = new TekListDuplicateValidator().Validate(teks);
if (messages.Length > 0)
{
_logger.WriteTekDuplicatesFound(messages);
return;
}
//Validation ends, filtering starts
var filterResult = _tekApplicableWindowFilter.Execute(teks);
_logger.WriteApplicableWindowFilterResult(filterResult.Messages);
teks = filterResult.Items;
_logger.WriteValidTekCount(teks.Length);
var workflow = _dbContext
.KeyReleaseWorkflowStates
.Include(x => x.Teks)
.SingleOrDefault(x => x.BucketId == _bucketIdBytes);
if (workflow == null)
{
_logger.WriteBucketDoesNotExist(_argsObject.BucketId);
return;
}
if (!_signatureValidator.Valid(signature, workflow.ConfirmationKey, _bodyBytes))
{
_logger.WriteSignatureInvalid(workflow.BucketId, signature);
return;
}
var filterResults = _tekListWorkflowFilter.Filter(teks, workflow);
_logger.WriteWorkflowFilterResults(filterResults.Messages);
_logger.WriteValidTekCountSecondPass(teks.Length);
//Run after the filter removes the existing TEKs from the args.
var allTeks = workflow.Teks.Select(Mapper.MapToTek).Concat(filterResults.Items).ToArray();
messages = new TekListDuplicateKeyDataValidator().Validate(allTeks);
if (messages.Length > 0)
{
_logger.WriteTekDuplicatesFoundWholeWorkflow(messages);
return;
}
_logger.WriteDbWriteStart();
var writeArgs = new TekWriteArgs
{
WorkflowStateEntityEntity = workflow,
NewItems = filterResults.Items
};
await _writer.ExecuteAsync(writeArgs);
_dbContext.SaveAndCommit();
_logger.WriteDbWriteCommitted();
if (filterResults.Items.Length != 0)
{
_logger.WriteTekCountAdded(filterResults.Items.Length);
}
}