public void LoadDataFromCache()
{
PasswordCheckDataList.Clear();
try
{
string jsonContent = File.ReadAllText(CacheFilePath, Encoding.UTF8);
JObject json = JObject.Parse(jsonContent);
LastCheck = Newtonsoft.Json.JsonConvert.DeserializeObject <DateTime>(
json[nameof(LastCheck)].ToString(),
PasswordCheckData.dateTimeConverter);
NumberOfPassword = json[nameof(NumberOfPassword)].ToObject <int>();
NumberOfSkippedPassword = json[nameof(NumberOfSkippedPassword)].ToObject <int>();
JArray jArray = json["data"].ToObject <JArray>();
foreach (JObject jsonData in jArray)
{
PasswordCheckData item = new PasswordCheckData();
item.LoadFromJSON(jsonData);
PasswordCheckDataList.Add(item);
}
}
catch (Exception Ex)
{
Debug.WriteLine("Unable to load data from the file " + CacheFilePath + ". Error: " + Ex.Message);
throw new Exception(string.Format(AppResources.errPwdCheckerLoadFileFailed, Ex.Message));
}
}
public async Task VerifyPasswords()
{
var accounts = await App.PwdManager.GetPasswordList();
int itemId = 0, numItems = accounts.Count, numSkip = 0;
PasswordCheckDataList.Clear();
foreach (PwdListItem item in accounts)
{
try
{
if (item.SkipCheck)
{
numSkip++;
continue;
}
Zxcvbn.Result result = Checker.EvaluatePassword(item.Password);
bool bOld = IsPasswordToOld(item);
bool bWeak = IsPasswordTooWeak(result);
if (bOld || bWeak)
{
PasswordCheckData checkData = new PasswordCheckData
{
PwdId = item.Id,
LastChange = item.LastPwdChangeDateTime
};
if (bOld)
{
checkData.Issues.Add(PwdIssue.TooOld);
}
if (bWeak)
{
checkData.Issues.Add(PwdIssue.TooWeak);
}
checkData.StrengthData.CalcTime = result.CalcTime;
checkData.StrengthData.CrackTime = result.CrackTime;
checkData.StrengthData.Entropy = Math.Round(result.Entropy) - 1;
checkData.StrengthData.Score = result.Score;
PasswordCheckDataList.Add(checkData);
}
}
finally
{
Device.BeginInvokeOnMainThread(() =>
{
OnVerify?.Invoke(++itemId, numItems, item);
});
}
}
LastCheck = DateTime.Now;
NumberOfPassword = numItems;
NumberOfSkippedPassword = numSkip;
SaveCache();
}
