97 lines
2.5 KiB
Go
97 lines
2.5 KiB
Go
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// Copyright 2019 clair authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package database
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// Ancestry is a manifest that keeps all layers in an image in order.
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type Ancestry struct {
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// Name is a globally unique value for a set of layers. This is often the
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// sha256 digest of an OCI/Docker manifest.
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Name string `json:"name"`
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// By contains the processors that are used when computing the
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// content of this ancestry.
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By []Detector `json:"by"`
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// Layers should be ordered and i_th layer is the parent of i+1_th layer in
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// the slice.
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Layers []AncestryLayer `json:"layers"`
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}
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// Valid checks if the ancestry is compliant to spec.
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func (a *Ancestry) Valid() bool {
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if a == nil {
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return false
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}
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if a.Name == "" {
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return false
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}
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for _, d := range a.By {
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if !d.Valid() {
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return false
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}
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}
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for _, l := range a.Layers {
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if !l.Valid() {
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return false
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}
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}
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return true
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}
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// AncestryLayer is a layer with all detected namespaced features.
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type AncestryLayer struct {
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// Hash is the sha-256 tarsum on the layer's blob content.
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Hash string `json:"hash"`
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// Features are the features introduced by this layer when it was
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// processed.
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Features []AncestryFeature `json:"features"`
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}
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// Valid checks if the Ancestry Layer is compliant to the spec.
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func (l *AncestryLayer) Valid() bool {
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if l == nil {
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return false
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}
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if l.Hash == "" {
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return false
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}
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return true
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}
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// GetFeatures returns the Ancestry's features.
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func (l *AncestryLayer) GetFeatures() []NamespacedFeature {
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nsf := make([]NamespacedFeature, 0, len(l.Features))
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for _, f := range l.Features {
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nsf = append(nsf, f.NamespacedFeature)
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}
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return nsf
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}
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// AncestryFeature is a namespaced feature with the detectors used to
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// find this feature.
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type AncestryFeature struct {
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NamespacedFeature `json:"namespacedFeature"`
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// FeatureBy is the detector that detected the feature.
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FeatureBy Detector `json:"featureBy"`
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// NamespaceBy is the detector that detected the namespace.
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NamespaceBy Detector `json:"namespaceBy"`
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}
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