32 lines
1.1 KiB
C#
32 lines
1.1 KiB
C#
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namespace MinecraftDiscordBot;
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public class TimeoutTokenProvider : ITokenProvider {
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public TimeoutTokenProvider(int timeoutSeconds, ICipher? cipher = null) {
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_timeout = timeoutSeconds;
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_cipher = cipher ?? new AesCipher();
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}
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private readonly ICipher _cipher;
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private readonly int _timeout;
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public bool VerifyToken(string token) {
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byte[] data;
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try {
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data = _cipher.Decrypt(Convert.FromHexString(token));
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} catch (Exception e) {
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Program.LogError("TokenProvider", e);
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return false;
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}
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var when = DateTime.FromBinary(BitConverter.ToInt64(data, 0));
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return when >= DateTime.UtcNow.AddSeconds(-_timeout);
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}
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public string GenerateToken() {
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var time = BitConverter.GetBytes(DateTime.UtcNow.ToBinary());
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var key = Guid.NewGuid().ToByteArray();
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var token = Convert.ToHexString(_cipher.Encrypt(time.Concat(key).ToArray()));
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return token;
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}
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}
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public interface ITokenProvider {
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string GenerateToken();
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bool VerifyToken(string token);
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}
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