/// <summary>
/// Checks access to log files and that they are written to every day
/// </summary>
/// <param name="context"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public Task <HealthCheckResult> CheckHealthAsync(HealthCheckContext context, CancellationToken cancellationToken = default)
{
_logger.LogInformation($"Health check {Startup.RollingStartNumberPattern}");
var batchSize = 10;
var query = _httpContextAccessor.HttpContext.Request.Query;
if (query.ContainsKey(QueryValue))
{
query.TryGetValue(QueryValue, out var values);
batchSize = int.Parse(values.ToString());
}
var status = HealthStatus.Healthy;
var data = new Dictionary <string, object>();
try
{
var temporaryExposureKeys = _temporaryExposureKeyRepository.GetAllKeysNextBatch(0, batchSize);
foreach (var key in temporaryExposureKeys)
{
var rollingStartNumber = key.RollingStartNumber;
var isMidnight = IsMidnight(rollingStartNumber);
if (isMidnight)
{
continue;
}
status = HealthStatus.Unhealthy;
data.Add($"Entry {key.Id} rollingStartNumber not midnight", $"{rollingStartNumber}");
}
}
catch (Exception e)
{
var errorMessage = $"{e.Message} - {e.StackTrace}";
_logger.LogError(errorMessage);
status = HealthStatus.Unhealthy;
data.Add($"Error in data retrieval {DateTime.Now}", errorMessage);
return(Task.FromResult(new HealthCheckResult(
status,
Description,
e,
data)));
}
return(Task.FromResult(new HealthCheckResult(
status,
Description,
data: data)));
}
public void FindAndRemoveInvalidKeys(int batchSize)
{
int numberOfRecordsToSkip = 0;
List <TemporaryExposureKey> databaseKeys;
List <TemporaryExposureKey> wrongKeys = new List <TemporaryExposureKey>();
var errorMessage = string.Empty;
do
{
databaseKeys = _repository.GetAllKeysNextBatch(numberOfRecordsToSkip, batchSize).ToList();
foreach (var key in databaseKeys)
{
if (!_keyValidator.ValidateKeyAPI(key, out errorMessage))
{
wrongKeys.Add(key);
}
}
numberOfRecordsToSkip += databaseKeys.Count;
}while (databaseKeys.Count > 0);
_repository.RemoveKeys(wrongKeys);
_logger.LogInformation($"Removed {wrongKeys.Count} invalid keys from the database: {JsonConvert.SerializeObject(wrongKeys)}");
}