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96ce8b63bc
This requires re-vendoring a bunch of other things (as well as the old Sirupsen/logrus path), the relevant commits being: * github.com/xeipuuv/gojsonschema@0c8571ac0ce161a5feb57375a9cdf148c98c0f70 * github.com/xeipuuv/gojsonpointer@6fe8760cad3569743d51ddbb243b26f8456742dc * github.com/xeipuuv/gojsonreference@e02fc20de94c78484cd5ffb007f8af96be030a45 * go4.org@034d17a462f7b2dcd1a4a73553ec5357ff6e6c6e Signed-off-by: Aleksa Sarai <asarai@suse.de>
72 lines
1.9 KiB
Go
72 lines
1.9 KiB
Go
// Copyright 2016 The Linux Foundation
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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 image
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"github.com/opencontainers/image-spec/schema"
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"github.com/opencontainers/image-spec/specs-go/v1"
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"github.com/pkg/errors"
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)
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func findIndex(w walker, d *v1.Descriptor) (*v1.Index, error) {
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var index v1.Index
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ipath := filepath.Join("blobs", string(d.Digest.Algorithm()), d.Digest.Hex())
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switch err := w.walk(func(path string, info os.FileInfo, r io.Reader) error {
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if info.IsDir() || filepath.Clean(path) != ipath {
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return nil
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}
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buf, err := ioutil.ReadAll(r)
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if err != nil {
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return errors.Wrapf(err, "%s: error reading index", path)
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}
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if err := schema.ValidatorMediaTypeImageIndex.Validate(bytes.NewReader(buf)); err != nil {
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return errors.Wrapf(err, "%s: index validation failed", path)
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}
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if err := json.Unmarshal(buf, &index); err != nil {
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return err
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}
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return errEOW
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}); err {
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case errEOW:
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return &index, nil
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case nil:
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return nil, fmt.Errorf("index not found")
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default:
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return nil, err
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}
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}
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func validateIndex(index *v1.Index, w walker) error {
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for _, manifest := range index.Manifests {
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if err := validateDescriptor(&manifest, w, []string{v1.MediaTypeImageManifest}); err != nil {
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return errors.Wrap(err, "manifest validation failed")
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}
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}
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return nil
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}
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