private bool IsStrongPassword()
{
if (!NewPassword.Any(char.IsUpper)) return false;
if (!NewPassword.Any(char.IsNumber)) return false;
if (NewPassword.Length < 8) return false;
return true;
}
public IEnumerable <ValidationResult> Validate(ValidationContext validationContext)
{
var results = new List <ValidationResult>();
if (NewPassword.Any(char.IsUpper) == false)
{
results.Add(new ValidationResult("Password must contain at least one upper-case letter",
new List <string> {
"NewPassword"
}));
}
if (NewPassword.Any(char.IsLower) == false)
{
results.Add(new ValidationResult("Password must contain at least one lower-case letter",
new List <string> {
"NewPassword"
}));
}
if (NewPassword.Any(char.IsDigit) == false)
{
results.Add(new ValidationResult("Password must contain at least one digit",
new List <string> {
"NewPassword"
}));
}
return(results);
}
private string ValidatePassword(string NewPassword)
{
Random rand = new Random();
List <int> nonSelectedIndexes = new List <int>(Enumerable.Range(0, NewPassword.Length));
if (!NewPassword.Any(x => char.IsDigit(x)))
{ //does not contain digit
char[] pass = NewPassword.ToCharArray();
int pos = nonSelectedIndexes[rand.Next(nonSelectedIndexes.Count)];
nonSelectedIndexes.Remove(pos);
pass[pos] = Convert.ToChar(rand.Next(10) + '0');
NewPassword = new string(pass);
}
if (!NewPassword.Any(x => char.IsLower(x)))
{ //does not contain lower
char[] pass = NewPassword.ToCharArray();
int pos = nonSelectedIndexes[rand.Next(nonSelectedIndexes.Count)];
nonSelectedIndexes.Remove(pos);
pass[pos] = Convert.ToChar(rand.Next(26) + 'a');
NewPassword = new string(pass);
}
if (!NewPassword.Any(x => char.IsUpper(x)))
{ //does not contain upper
char[] pass = NewPassword.ToCharArray();
int pos = nonSelectedIndexes[rand.Next(nonSelectedIndexes.Count)];
nonSelectedIndexes.Remove(pos);
pass[pos] = Convert.ToChar(rand.Next(26) + 'A');
NewPassword = new string(pass);
}
return(NewPassword);
}