mirror of
https://github.com/goharbor/harbor.git
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131 lines
3.9 KiB
Go
131 lines
3.9 KiB
Go
// Copyright Project Harbor 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 distribution
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import (
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"fmt"
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"regexp"
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"github.com/docker/distribution"
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"github.com/opencontainers/go-digest"
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// docker schema1 manifest
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_ "github.com/docker/distribution/manifest/schema1"
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// docker schema2 manifest
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_ "github.com/docker/distribution/manifest/schema2"
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// manifestlist
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_ "github.com/docker/distribution/manifest/manifestlist"
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// oci schema
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_ "github.com/docker/distribution/manifest/ocischema"
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ref "github.com/docker/distribution/reference"
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"github.com/goharbor/harbor/src/common/utils"
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)
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// Descriptor alias type of github.com/docker/distribution.Descriptor
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type Descriptor = distribution.Descriptor
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// Manifest alias type of github.com/docker/distribution.Manifest
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type Manifest = distribution.Manifest
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var (
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// UnmarshalManifest alias func from `github.com/docker/distribution`
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UnmarshalManifest = distribution.UnmarshalManifest
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)
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var (
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name = fmt.Sprintf("(?P<name>%s)", ref.NameRegexp)
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reference = fmt.Sprintf("(?P<reference>((%s)|(%s)))", ref.DigestRegexp, ref.TagRegexp)
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dgt = fmt.Sprintf("(?P<digest>%s)", ref.DigestRegexp)
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sessionID = "(?P<session_id>[a-zA-Z0-9-_.=]+)"
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// BlobURLRegexp regexp which match blob url
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BlobURLRegexp = regexp.MustCompile(`^/v2/` + name + `/blobs/` + dgt)
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// BlobUploadURLRegexp regexp which match blob upload url
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BlobUploadURLRegexp = regexp.MustCompile(`^/v2/` + name + `/blobs/uploads/` + sessionID)
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// InitiateBlobUploadRegexp regexp which match initiate blob upload url
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InitiateBlobUploadRegexp = regexp.MustCompile(`^/v2/` + name + `/blobs/uploads`)
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// ManifestURLRegexp regexp which match manifest url
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ManifestURLRegexp = regexp.MustCompile(`^/v2/` + name + `/manifests/` + reference)
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)
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var (
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extractNameRegexp = regexp.MustCompile(`^/v2/` + name + `/(manifests|blobs|tags)`)
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extractSessionIDRegexp = regexp.MustCompile(`^/v2/` + name + `/blobs/uploads/` + sessionID)
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)
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// ParseName returns name value from distribution API URL path
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func ParseName(path string) string {
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m := utils.FindNamedMatches(extractNameRegexp, path)
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if len(m) > 0 {
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return m["name"]
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}
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return ""
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}
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// ParseReference returns digest or tag from distribution API URL path
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func ParseReference(path string) string {
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m := utils.FindNamedMatches(ManifestURLRegexp, path)
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if len(m) > 0 {
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return m["reference"]
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}
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return ""
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}
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// ParseProjectName returns project name from distribution API URL path
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func ParseProjectName(path string) string {
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projectName, _ := utils.ParseRepository(ParseName(path))
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return projectName
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}
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// ParseSessionID returns session id value from distribution API URL path
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func ParseSessionID(path string) string {
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m := utils.FindNamedMatches(extractSessionIDRegexp, path)
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if len(m) > 0 {
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return m["session_id"]
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}
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return ""
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}
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// ParseRef parse "repository:tag" or "repository@digest" into repository and reference parts
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func ParseRef(s string) (string, string, error) {
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matches := ref.ReferenceRegexp.FindStringSubmatch(s)
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if matches == nil {
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return "", "", fmt.Errorf("invalid input: %s", s)
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}
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repository := matches[1]
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reference := matches[2]
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if matches[3] != "" {
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_, err := digest.Parse(matches[3])
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if err != nil {
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return "", "", fmt.Errorf("invalid input: %s", s)
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}
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reference = matches[3]
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}
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return repository, reference, nil
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}
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// IsDigest returns true when reference is digest
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func IsDigest(reference string) bool {
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return ref.DigestRegexp.MatchString(reference)
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}
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