40 lines
968 B
Dart
40 lines
968 B
Dart
import 'package:ente_auth/models/code.dart';
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import 'package:otp/otp.dart' as otp;
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String getTotp(Code code) {
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return otp.OTP.generateTOTPCodeString(
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getSanitizedSecret(code.secret),
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DateTime.now().millisecondsSinceEpoch,
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length: code.digits,
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interval: code.period,
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algorithm: _getAlgorithm(code),
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isGoogle: true,
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);
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}
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String getNextTotp(Code code) {
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return otp.OTP.generateTOTPCodeString(
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getSanitizedSecret(code.secret),
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DateTime.now().millisecondsSinceEpoch + code.period * 1000,
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length: code.digits,
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interval: code.period,
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algorithm: _getAlgorithm(code),
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isGoogle: true,
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);
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}
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otp.Algorithm _getAlgorithm(Code code) {
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switch (code.algorithm) {
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case Algorithm.sha256:
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return otp.Algorithm.SHA256;
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case Algorithm.sha512:
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return otp.Algorithm.SHA512;
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default:
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return otp.Algorithm.SHA1;
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}
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}
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String getSanitizedSecret(String secret) {
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return secret.toUpperCase().trim();
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}
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