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58 lines
1.7 KiB
Go
58 lines
1.7 KiB
Go
package oidc
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import "github.com/zitadel/zitadel/internal/domain"
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const (
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// Password states that the users password has been verified
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// Deprecated: use `PWD` instead
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Password = "password"
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// PWD states that the users password has been verified
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PWD = "pwd"
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// MFA states that multiple factors have been verified (e.g. pwd and otp or passkey)
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MFA = "mfa"
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// OTP states that a one time password has been verified (e.g. TOTP)
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OTP = "otp"
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// UserPresence states that the end users presence has been verified (e.g. passkey and u2f)
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UserPresence = "user"
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)
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// AuthMethodTypesToAMR maps zitadel auth method types to Authentication Method Reference Values
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// as defined in [RFC 8176, section 2].
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//
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// [RFC 8176, section 2]: https://datatracker.ietf.org/doc/html/rfc8176#section-2
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func AuthMethodTypesToAMR(methodTypes []domain.UserAuthMethodType) []string {
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amr := make([]string, 0, 4)
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var factors, otp int
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for _, methodType := range methodTypes {
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switch methodType {
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case domain.UserAuthMethodTypePassword:
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amr = append(amr, PWD)
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factors++
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case domain.UserAuthMethodTypePasswordless:
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amr = append(amr, UserPresence)
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factors += 2
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case domain.UserAuthMethodTypeU2F:
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amr = append(amr, UserPresence)
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factors++
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case domain.UserAuthMethodTypeTOTP,
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domain.UserAuthMethodTypeOTPSMS,
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domain.UserAuthMethodTypeOTPEmail:
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// a user could use multiple (t)otp, which is a factor, but still will be returned as a single `otp` entry
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otp++
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factors++
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case domain.UserAuthMethodTypeIDP:
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// no AMR value according to specification
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factors++
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case domain.UserAuthMethodTypeUnspecified:
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// ignore
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}
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}
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if otp > 0 {
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amr = append(amr, OTP)
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}
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if factors >= 2 {
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amr = append(amr, MFA)
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}
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return amr
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}
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