Public Access
86 lines
3.9 KiB
C#
86 lines
3.9 KiB
C#
namespace DodoSSH.Client.Shell.ViewModels;
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/// <summary>
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/// What unlocking with this machine's device key is called here, and what it asks the person for.
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/// </summary>
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/// <remarks>
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/// <para>
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/// The words used to be Windows's everywhere: "USE WINDOWS HELLO" on a Mac, "Waiting for Windows…" over a
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/// Linux PIN prompt, and a settings row that told a MacBook it needed a TPM. Each desktop has its own device
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/// key store with its own gesture — see <c>WindowsDeviceKeyStore</c>, <c>MacDeviceKeyStore</c> and
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/// <c>LinuxDeviceKeyStore</c> — and a button has to name the one the person is about to be shown, or it reads
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/// as a feature for some other machine.
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/// </para>
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/// <para>
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/// One record rather than a property per sentence on the shell, so that the five places these words appear
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/// cannot disagree about which platform they are on.
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/// </para>
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/// </remarks>
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/// <param name="Name">What the feature is called, as a settings row's title.</param>
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/// <param name="Button">The unlock card's button, in the capitals every button here uses.</param>
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/// <param name="Wait">The status line while the platform's prompt is up.</param>
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/// <param name="Gesture">What opens the keychain instead of the passphrase, to finish a sentence.</param>
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/// <param name="Keeper">What holds the key, to finish "Registered · …".</param>
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/// <param name="Needs">What a machine with no device key store lacks, as a sentence of its own.</param>
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internal sealed record DeviceUnlockWording(
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string Name,
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string Button,
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string Wait,
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string Gesture,
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string Keeper,
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string Needs)
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{
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internal static DeviceUnlockWording Windows { get; } = new(
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"Windows Hello on this machine",
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"USE WINDOWS HELLO",
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"Waiting for Windows…",
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"a Windows confirmation",
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"the TPM holds a device key",
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"That needs a TPM and a Windows keystore willing to release the key.");
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internal static DeviceUnlockWording Mac { get; } = new(
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"Touch ID on this Mac",
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"USE TOUCH ID",
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"Waiting for Touch ID…",
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"Touch ID or your login password",
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"the Secure Enclave holds a device key",
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"That needs a Mac with a Secure Enclave and a login password set.");
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internal static DeviceUnlockWording Linux { get; } = new(
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"A device PIN on this machine",
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"USE DEVICE PIN",
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"Waiting for your PIN…",
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"a PIN the TPM checks",
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"the TPM holds a device key",
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"That needs a TPM 2.0 this account is allowed to use.");
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internal static DeviceUnlockWording Android { get; } = new(
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"Fingerprint unlock on this phone",
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"USE FINGERPRINT",
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"Waiting for your fingerprint…",
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"your fingerprint",
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"the phone's keystore holds a device key",
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"That needs a screen lock and a keystore willing to release the key.");
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/// <summary>The wording for the platform this process is running on.</summary>
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internal static DeviceUnlockWording ForThisPlatform { get; } =
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OperatingSystem.IsAndroid() ? Android
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: OperatingSystem.IsMacOS() ? Mac
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: OperatingSystem.IsLinux() ? Linux
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: Windows;
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/// <summary>The settings caption for a machine that can register.</summary>
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internal string Offer =>
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$"Registers this machine so a later launch can open the keychain with {Gesture} instead of your passphrase. Your passphrase keeps working.";
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/// <summary>The settings caption for a machine that has.</summary>
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internal string Registered => $"Registered · {Keeper} that can open the keychain with {Gesture}.";
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/// <summary>The settings caption for a machine that cannot.</summary>
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internal string Unavailable =>
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$"This machine has nowhere to keep a device key, so the keychain will keep asking for your passphrase. {Needs}";
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/// <summary>The unlock button's tooltip.</summary>
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internal string Tip => $"Opens the keychain with this machine's device key, after {Gesture}.";
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}
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