1ba274d699
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- SQLInsight.Licensing: ECDSA P-256 signed documents (SQLI1.payload.sig), licenses with plan, expiry, instance count and key id for rotation; 30-day grace; invalid or missing licenses are states, never errors, and never stop monitoring (a license only adds hub sync and support) - Trusted public keys are embedded; the source ships with none, so a published key can never mint licenses. The vendor adds its own. - tools/SQLInsight.LicenseTool: keygen, issue, verify - *.private.pem ignored by git Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
34 lines
1.6 KiB
C#
34 lines
1.6 KiB
C#
namespace SQLInsight.Licensing;
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/// <summary>
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/// Checks a license text offline. Never throws on bad input: an invalid license is a state, not an error, and never
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/// stops monitoring.
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/// </summary>
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public sealed class LicenseVerifier(TrustedKeys keys, TimeProvider time)
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{
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public static readonly TimeSpan GracePeriod = TimeSpan.FromDays(30);
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public LicenseStatus Check(string? licenseText)
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{
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if (string.IsNullOrWhiteSpace(licenseText))
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{
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return new LicenseStatus(LicenseState.None, null, "Ingen licens: Community. Al overvågning er gratis; Hub-synkronisering og prioriteret support kræver et abonnement.");
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}
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var license = SignedDocument.Verify<License>(licenseText, keys, l => l.KeyId);
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if (license is null)
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{
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return new LicenseStatus(LicenseState.Invalid, null, "Licensen er ugyldig: signaturen passer ikke, eller teksten er beskadiget. Overvågningen fortsætter.");
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}
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var now = time.GetUtcNow();
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if (now <= license.ExpiresAt)
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{
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return new LicenseStatus(LicenseState.Valid, license, $"{license.Plan} til {license.Customer}, gyldig til {license.ExpiresAt:yyyy-MM-dd}.");
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}
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return now <= license.ExpiresAt + GracePeriod
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? new LicenseStatus(LicenseState.ExpiredInGrace, license, $"Licensen udløb {license.ExpiresAt:yyyy-MM-dd}. Hub-synkronisering fortsætter til {(license.ExpiresAt + GracePeriod):yyyy-MM-dd}; forny venligst.")
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: new LicenseStatus(LicenseState.Expired, license, $"Licensen udløb {license.ExpiresAt:yyyy-MM-dd}. Overvågningen fortsætter; Hub-synkronisering er stoppet.");
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}
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}
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