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chore: import upstream snapshot with attribution
2026-07-13 12:22:54 +08:00

61 lines
2.5 KiB
Go

// Copyright (c) 2026 Lark Technologies Pte. Ltd.
// SPDX-License-Identifier: MIT
package platform
// Rule is the declarative policy rule data structure. yaml files and
// Plugin.Restrict() both produce the same Rule.
//
// At any moment there is at most one effective Rule -- the resolver decides
// which source wins (Plugin > yaml > none). This package only defines the
// shape; selection lives in internal/cmdpolicy.
//
// The four filter fields are joined by AND. See the engine's Evaluate for
// the full semantics. JSON tags are used by `config policy show`; yaml
// parsing lives in internal/cmdpolicy/yaml so the public API does not
// depend on a yaml library.
type Rule struct {
Name string `json:"name"`
Description string `json:"description,omitempty"`
// Allow is a list of doublestar globs (slash-separated paths). An empty
// slice means "no path restriction"; a non-empty slice means "command
// path must match at least one glob".
Allow []string `json:"allow,omitempty"`
// Deny is a list of doublestar globs. A path that matches any Deny glob
// is rejected regardless of Allow.
Deny []string `json:"deny,omitempty"`
// MaxRisk is the highest allowed risk level (inclusive). Empty string
// means "no risk restriction". Comparison uses the closed taxonomy
// read < write < high-risk-write.
MaxRisk Risk `json:"max_risk,omitempty"`
// Identities is the allowed identity whitelist. A command passes when
// the intersection with the command's own supported identities is
// non-empty. Empty slice means "no identity restriction".
Identities []Identity `json:"identities,omitempty"`
// AllowUnannotated controls how commands missing a risk_level
// annotation are handled when this Rule is active.
//
// Default (false, fail-closed): unannotated commands are rejected
// with reason_code=risk_not_annotated. This is the safe default
// — a typo'd or forgotten annotation cannot slip past an
// "agent read-only" rule.
//
// Set to true to opt out during gradual adoption: lark-cli main
// has hundreds of service commands that may not yet carry
// risk_level annotations, and a brand-new policy plugin would
// otherwise lock the binary to nothing.
//
// This flag does NOT affect risk_invalid (typos): a command that
// claims a risk but mis-spells it is always denied, regardless of
// AllowUnannotated. Typo is a code bug, not a migration phase.
//
// No yaml tag: yaml decoding lives in internal/cmdpolicy/yaml so
// platform stays free of a yaml library dependency.
AllowUnannotated bool `json:"allow_unannotated,omitempty"`
}