34 lines
946 B
C#
34 lines
946 B
C#
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using System.Text.RegularExpressions;
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namespace back_end.Services;
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public class PasswordService : IPasswordService
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{
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private List<string> _commonPasswords = new List<string>();
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public void LoadCommonPasswords(string filepath)
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{
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if (_commonPasswords.Count != 0) return;
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try
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{
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_commonPasswords.AddRange(File.ReadAllLines(filepath));
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}
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catch (Exception e)
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{
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throw new Exception("Error loading common passwords.", e);
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}
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}
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public bool IsPasswordInvalid(string password)
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{
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// RegEx feels like cheating it's so good
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Regex regex = new Regex("^(?=.*?[a-zA-Z])(?=.*?[0-9])(?=.*?[!£$^*#])[a-zA-Z0-9!£$^*#]{7,14}$");
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return !regex.IsMatch(password);
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}
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public bool IsPasswordCommon(string? password)
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{
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if (password == null) return true;
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return _commonPasswords.Contains(password);
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}
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}
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