2022-02-15 11:52:43 +00:00
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namespace ASC.Security.Cryptography;
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[Scope]
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public class EmailValidationKeyProvider
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2020-10-19 15:53:15 +00:00
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{
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2022-02-15 11:52:43 +00:00
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public enum ValidationResult
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{
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Ok,
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Invalid,
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Expired
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}
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2019-09-27 10:45:37 +00:00
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2022-02-15 11:52:43 +00:00
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private readonly ILog _logger;
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private static readonly DateTime _from = new DateTime(2010, 01, 01, 0, 0, 0, DateTimeKind.Utc);
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internal readonly TimeSpan ValidEmailKeyInterval;
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internal readonly TimeSpan ValidAuthKeyInterval;
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private readonly MachinePseudoKeys _machinePseudoKeys;
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private readonly TenantManager _tenantManager;
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public EmailValidationKeyProvider(MachinePseudoKeys machinePseudoKeys, TenantManager tenantManager, IConfiguration configuration, IOptionsMonitor<ILog> options)
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{
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_machinePseudoKeys = machinePseudoKeys;
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_tenantManager = tenantManager;
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if (!TimeSpan.TryParse(configuration["email:validinterval"], out var validInterval))
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2020-09-15 13:11:05 +00:00
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{
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2022-02-15 11:52:43 +00:00
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validInterval = TimeSpan.FromDays(7);
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}
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if (!TimeSpan.TryParse(configuration["auth:validinterval"], out var authValidInterval))
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{
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authValidInterval = TimeSpan.FromHours(1);
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}
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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ValidEmailKeyInterval = validInterval;
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ValidAuthKeyInterval = authValidInterval;
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_logger = options.CurrentValue;
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}
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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public string GetEmailKey(string email)
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{
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return GetEmailKey(_tenantManager.GetCurrentTenant().Id, email);
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}
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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public string GetEmailKey(int tenantId, string email)
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{
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2022-03-09 17:15:51 +00:00
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ArgumentNullOrEmptyException.ThrowIfNullOrEmpty(email);
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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email = FormatEmail(tenantId, email);
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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var ms = (long)(DateTime.UtcNow - _from).TotalMilliseconds;
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var hash = GetMashineHashedData(BitConverter.GetBytes(ms), Encoding.ASCII.GetBytes(email));
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return string.Format("{0}.{1}", ms, DoStringFromBytes(hash));
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2020-10-07 10:45:53 +00:00
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}
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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private string FormatEmail(int tenantId, string email)
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2020-10-07 10:45:53 +00:00
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{
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2022-03-09 17:15:51 +00:00
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ArgumentNullException.ThrowIfNull(email);
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2020-07-02 14:11:59 +00:00
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2022-02-15 11:52:43 +00:00
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try
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2020-10-07 10:45:53 +00:00
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{
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2022-02-15 11:52:43 +00:00
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return string.Format("{0}|{1}|{2}", email.ToLowerInvariant(), tenantId, Encoding.UTF8.GetString(_machinePseudoKeys.GetMachineConstant()));
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2020-07-02 14:11:59 +00:00
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}
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2022-02-15 11:52:43 +00:00
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catch (Exception e)
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{
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_logger.Fatal("Failed to format tenant specific email", e);
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2020-09-15 13:11:05 +00:00
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2022-02-15 11:52:43 +00:00
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return email.ToLowerInvariant();
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}
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}
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2020-07-02 14:11:59 +00:00
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2022-02-15 11:52:43 +00:00
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public ValidationResult ValidateEmailKey(string email, string key)
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{
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return ValidateEmailKey(email, key, TimeSpan.MaxValue);
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}
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2020-07-02 14:11:59 +00:00
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2022-02-15 11:52:43 +00:00
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public ValidationResult ValidateEmailKey(string email, string key, TimeSpan validInterval)
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{
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var result = ValidateEmailKeyInternal(email, key, validInterval);
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_logger.DebugFormat("validation result: {0}, source: {1} with key: {2} interval: {3} tenant: {4}", result, email, key, validInterval, _tenantManager.GetCurrentTenant().Id);
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return result;
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}
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2019-11-06 15:03:09 +00:00
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2022-02-15 11:52:43 +00:00
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private ValidationResult ValidateEmailKeyInternal(string email, string key, TimeSpan validInterval)
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{
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2022-03-09 17:15:51 +00:00
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ArgumentNullOrEmptyException.ThrowIfNullOrEmpty(email);
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ArgumentNullException.ThrowIfNull(key);
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2019-11-06 15:03:09 +00:00
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2022-02-15 11:52:43 +00:00
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email = FormatEmail(_tenantManager.GetCurrentTenant().Id, email);
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var parts = key.Split(new[] { '.' }, StringSplitOptions.RemoveEmptyEntries);
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if (parts.Length != 2)
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{
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return ValidationResult.Invalid;
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}
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2020-07-02 14:11:59 +00:00
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2022-02-15 11:52:43 +00:00
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if (!long.TryParse(parts[0], out var ms))
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{
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return ValidationResult.Invalid;
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}
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2020-07-02 14:11:59 +00:00
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2022-02-15 11:52:43 +00:00
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var hash = GetMashineHashedData(BitConverter.GetBytes(ms), Encoding.ASCII.GetBytes(email));
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var key2 = DoStringFromBytes(hash);
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var key2_good = string.Equals(parts[1], key2, StringComparison.OrdinalIgnoreCase);
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if (!key2_good)
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{
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return ValidationResult.Invalid;
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}
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var ms_current = (long)(DateTime.UtcNow - _from).TotalMilliseconds;
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return validInterval >= TimeSpan.FromMilliseconds(ms_current - ms) ? ValidationResult.Ok : ValidationResult.Expired;
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}
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2020-07-02 14:11:59 +00:00
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2022-02-15 11:52:43 +00:00
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internal static string DoStringFromBytes(byte[] data)
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{
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var str = Convert.ToBase64String(data);
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str = str.Replace("=", "").Replace("+", "").Replace("/", "").Replace("\\", "");
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return str.ToUpperInvariant();
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}
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2020-07-02 14:11:59 +00:00
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2022-02-15 11:52:43 +00:00
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internal static byte[] GetMashineHashedData(byte[] salt, byte[] data)
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{
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var alldata = new byte[salt.Length + data.Length];
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Array.Copy(data, alldata, data.Length);
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Array.Copy(salt, 0, alldata, data.Length, salt.Length);
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return Hasher.Hash(alldata, HashAlg.SHA256);
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}
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}
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2019-11-06 15:03:09 +00:00
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2022-02-15 11:52:43 +00:00
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public class EmailValidationKeyModel
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{
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public string Key { get; set; }
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public EmployeeType? EmplType { get; set; }
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public string Email { get; set; }
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public Guid? UiD { get; set; }
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public ConfirmType? Type { get; set; }
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2022-02-25 17:16:00 +00:00
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public void Deconstruct(out string key, out EmployeeType? emplType, out string email, out Guid? uiD, out ConfirmType? type)
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2022-02-15 11:52:43 +00:00
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{
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2022-02-25 17:16:00 +00:00
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(key, emplType, email, uiD, type) = (Key, EmplType, Email, UiD, Type);
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2022-02-15 11:52:43 +00:00
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}
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}
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[Transient]
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public class EmailValidationKeyModelHelper
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{
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private readonly IHttpContextAccessor _httpContextAccessor;
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private readonly EmailValidationKeyProvider _provider;
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private readonly AuthContext _authContext;
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private readonly UserManager _userManager;
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private readonly AuthManager _authentication;
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public EmailValidationKeyModelHelper(
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IHttpContextAccessor httpContextAccessor,
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EmailValidationKeyProvider provider,
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AuthContext authContext,
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UserManager userManager,
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AuthManager authentication)
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{
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_httpContextAccessor = httpContextAccessor;
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_provider = provider;
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_authContext = authContext;
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_userManager = userManager;
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_authentication = authentication;
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}
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public EmailValidationKeyModel GetModel()
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{
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var request = QueryHelpers.ParseQuery(_httpContextAccessor.HttpContext.Request.Headers["confirm"]);
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2021-04-16 18:54:53 +00:00
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2022-02-15 11:52:43 +00:00
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request.TryGetValue("type", out var type);
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2021-04-16 18:54:53 +00:00
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2022-02-15 11:52:43 +00:00
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ConfirmType? cType = null;
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if (Enum.TryParse<ConfirmType>(type, out var confirmType))
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{
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cType = confirmType;
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2020-09-30 14:47:42 +00:00
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}
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2021-04-16 18:54:53 +00:00
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2022-02-15 11:52:43 +00:00
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request.TryGetValue("key", out var key);
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request.TryGetValue("emplType", out var emplType);
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Enum.TryParse<EmployeeType>(emplType, out var employeeType);
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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request.TryGetValue("email", out var _email);
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request.TryGetValue("uid", out var userIdKey);
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Guid.TryParse(userIdKey, out var userId);
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2021-04-16 18:54:53 +00:00
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2022-02-15 11:52:43 +00:00
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return new EmailValidationKeyModel
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{
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Email = _email,
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EmplType = employeeType,
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Key = key,
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Type = cType,
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UiD = userId
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};
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}
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2021-04-16 18:54:53 +00:00
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2022-03-15 10:56:22 +00:00
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public ValidationResult Validate(EmailValidationKeyModel inDto)
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2022-02-15 11:52:43 +00:00
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{
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2022-03-15 10:56:22 +00:00
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var (key, emplType, email, uiD, type) = inDto;
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2019-11-06 15:03:09 +00:00
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2022-02-15 11:52:43 +00:00
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ValidationResult checkKeyResult;
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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switch (type)
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{
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case ConfirmType.EmpInvite:
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checkKeyResult = _provider.ValidateEmailKey(email + type + (int)emplType, key, _provider.ValidEmailKeyInterval);
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break;
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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case ConfirmType.LinkInvite:
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checkKeyResult = _provider.ValidateEmailKey(type.ToString() + (int)emplType, key, _provider.ValidEmailKeyInterval);
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break;
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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case ConfirmType.PortalOwnerChange:
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checkKeyResult = _provider.ValidateEmailKey(email + type + uiD.HasValue, key, _provider.ValidEmailKeyInterval);
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break;
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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case ConfirmType.EmailChange:
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checkKeyResult = _provider.ValidateEmailKey(email + type + _authContext.CurrentAccount.ID, key, _provider.ValidEmailKeyInterval);
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break;
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case ConfirmType.PasswordChange:
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var hash = _authentication.GetUserPasswordStamp(_userManager.GetUserByEmail(email).Id).ToString("s");
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checkKeyResult = _provider.ValidateEmailKey(email + type + hash, key, _provider.ValidEmailKeyInterval);
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break;
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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case ConfirmType.Activation:
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checkKeyResult = _provider.ValidateEmailKey(email + type + uiD, key, _provider.ValidEmailKeyInterval);
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break;
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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case ConfirmType.ProfileRemove:
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// validate UiD
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2022-02-25 17:16:00 +00:00
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var user = _userManager.GetUsers(uiD.GetValueOrDefault());
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if (user == null || user.Status == EmployeeStatus.Terminated || _authContext.IsAuthenticated && _authContext.CurrentAccount.ID != uiD)
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2022-02-15 11:52:43 +00:00
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{
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2022-02-25 17:16:00 +00:00
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return ValidationResult.Invalid;
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2022-02-15 11:52:43 +00:00
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}
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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checkKeyResult = _provider.ValidateEmailKey(email + type + uiD, key, _provider.ValidEmailKeyInterval);
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break;
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case ConfirmType.Wizard:
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checkKeyResult = _provider.ValidateEmailKey("" + type, key, _provider.ValidEmailKeyInterval);
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break;
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case ConfirmType.PhoneActivation:
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case ConfirmType.PhoneAuth:
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case ConfirmType.TfaActivation:
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case ConfirmType.TfaAuth:
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checkKeyResult = _provider.ValidateEmailKey(email + type, key, _provider.ValidAuthKeyInterval);
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break;
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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default:
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checkKeyResult = _provider.ValidateEmailKey(email + type, key, _provider.ValidEmailKeyInterval);
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break;
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}
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2022-02-25 17:16:00 +00:00
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2022-02-15 11:52:43 +00:00
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return checkKeyResult;
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}
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}
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