9582e69968
* fix: standardize casing of initialisms * fix: rename intoto -> inToto and Intoto to InToto * fix: fix all linting errors
31 lines
838 B
Go
31 lines
838 B
Go
package policy
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import (
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"context"
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"fmt"
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"github.com/docker/attest/pkg/oci"
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)
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type policyEvaluatorCtxKeyType struct{}
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var PolicyEvaluatorCtxKey policyEvaluatorCtxKeyType
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// sets PolicyEvaluator in context.
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func WithPolicyEvaluator(ctx context.Context, pe Evaluator) context.Context {
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return context.WithValue(ctx, PolicyEvaluatorCtxKey, pe)
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}
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// gets PolicyEvaluator from context, defaults to Rego PolicyEvaluator if not set.
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func GetPolicyEvaluator(ctx context.Context) (Evaluator, error) {
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t, ok := ctx.Value(PolicyEvaluatorCtxKey).(Evaluator)
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if !ok {
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return nil, fmt.Errorf("no policy evaluator client set on context (set one with policy.WithPolicyEvaluator)")
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}
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return t, nil
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}
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type Evaluator interface {
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Evaluate(ctx context.Context, resolver oci.AttestationResolver, pctx *Policy, input *Input) (*Result, error)
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}
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