88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
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// Copyright (c) 2022 Tulir Asokan
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package id
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import (
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"fmt"
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"strings"
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)
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// TrustState determines how trusted a device is.
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type TrustState int
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const (
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TrustStateBlacklisted TrustState = -100
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TrustStateUnset TrustState = 0
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TrustStateUnknownDevice TrustState = 10
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TrustStateForwarded TrustState = 20
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TrustStateCrossSignedUntrusted TrustState = 50
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TrustStateCrossSignedTOFU TrustState = 100
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TrustStateCrossSignedVerified TrustState = 200
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TrustStateVerified TrustState = 300
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TrustStateInvalid TrustState = (1 << 31) - 1
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)
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func (ts *TrustState) UnmarshalText(data []byte) error {
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strData := string(data)
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state := ParseTrustState(strData)
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if state == TrustStateInvalid {
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return fmt.Errorf("invalid trust state %q", strData)
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}
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*ts = state
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return nil
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}
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func (ts *TrustState) MarshalText() ([]byte, error) {
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return []byte(ts.String()), nil
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}
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func ParseTrustState(val string) TrustState {
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switch strings.ToLower(val) {
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case "blacklisted":
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return TrustStateBlacklisted
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case "unverified":
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return TrustStateUnset
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case "cross-signed-untrusted":
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return TrustStateCrossSignedUntrusted
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case "unknown-device":
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return TrustStateUnknownDevice
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case "forwarded":
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return TrustStateForwarded
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case "cross-signed-tofu", "cross-signed":
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return TrustStateCrossSignedTOFU
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case "cross-signed-verified", "cross-signed-trusted":
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return TrustStateCrossSignedVerified
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case "verified":
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return TrustStateVerified
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default:
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return TrustStateInvalid
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}
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}
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func (ts TrustState) String() string {
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switch ts {
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case TrustStateBlacklisted:
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return "blacklisted"
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case TrustStateUnset:
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return "unverified"
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case TrustStateCrossSignedUntrusted:
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return "cross-signed-untrusted"
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case TrustStateUnknownDevice:
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return "unknown-device"
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case TrustStateForwarded:
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return "forwarded"
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case TrustStateCrossSignedTOFU:
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return "cross-signed-tofu"
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case TrustStateCrossSignedVerified:
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return "cross-signed-verified"
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case TrustStateVerified:
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return "verified"
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default:
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return "invalid"
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}
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}
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