43 lines
2.0 KiB
Go
43 lines
2.0 KiB
Go
// Package validate is the node-engine's own judgement of a declaration, for whoever must know before
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// a declaration is sent whether a machine would take it (novox/hq to-be 45 §4, D1; §9, the merge gate).
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//
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// **One validator.** The controller composed declarations the host then refused whole — a manifest
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// the catalogue check passed (novox/hq issue 236), a consumer's identity too long for the machine's
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// names (issue 263) — because the only validator was the one the host runs as it applies. A second,
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// written in the controller from the host's rules, would drift from them the first time either
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// changed. So the host's own parsing is exported here, unchanged: what the controller's self-check and
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// the merge gate run is what every machine runs.
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//
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// Copied from mesh-host at commit 619e14aa8e572c5056e3d2a2412c7f8b364bf840 (validate/validate.go), unchanged but for
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// the import path of the parser, which is mesh-sdk's go/declaration (novox/hq ADR 0453 clause 3, ADR 0446 clause 4).
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// mesh-host keeps its own copy until release 4b.
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//
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// It judges a declaration as it arrives over the link: actions are refused, as the host refuses them
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// from the link (novox/hq ADR 0005). Nothing here touches a machine.
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package validate
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import (
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"errors"
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"git.novox.be/novox/mesh-sdk/go/declaration"
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)
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// Declaration is every problem the node-engine would refuse a declaration for, each in its own words;
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// nil when it would take it. The body is the declaration as the controller composes it — the bytes a
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// signature is made over — not the signed envelope.
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func Declaration(raw []byte) []string {
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_, err := declaration.Parse(raw)
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if err == nil {
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return nil
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}
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var refused *declaration.RefusalError
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if errors.As(err, &refused) {
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return refused.Problems
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}
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return []string{err.Error()}
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}
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// Version is the declaration vocabulary this validator speaks: a declaration of another version is
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// refused whole by Declaration, as by the host.
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const Version = declaration.Version
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