65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
/*
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* Copyright 2026 Oleg Borodin <onborodin@gmail.com>
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*/
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package imageoper
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"strconv"
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)
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type GetBlobParams struct {
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Name string
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Digest string
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}
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type GetBlobResult struct {
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ContentLength string
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ContentType string
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DockerContentDigest string
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ReadCloser io.ReadCloser
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}
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func (oper *Operator) GetBlob(ctx context.Context, operatorID string, params *GetBlobParams) (*GetBlobResult, int, error) {
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var err error
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res := &GetBlobResult{}
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if params.Name == "" {
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err = fmt.Errorf("Empty name")
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return res, http.StatusBadRequest, err
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}
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if params.Digest == "" {
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err = fmt.Errorf("Empty digest")
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return res, http.StatusBadRequest, err
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}
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resName := params.Name
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oper.iLock.WaitAndLock(resName)
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defer oper.iLock.Done(resName)
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blobExists, blobSize, err := oper.store.BlobExists(params.Name, params.Digest)
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if err != nil {
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return res, http.StatusInternalServerError, err
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}
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descrExist, blobDescr, err := oper.mdb.GetBlobByNameDigest(ctx, params.Name, params.Digest)
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if err != nil {
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return res, http.StatusInternalServerError, err
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}
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if !blobExists || !descrExist {
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return res, http.StatusNotFound, err
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}
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_, readCloser, err := oper.store.BlobReader(params.Name, params.Digest)
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if err != nil {
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return res, http.StatusInternalServerError, err
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}
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res.ContentType = blobDescr.MediaType
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res.ContentLength = strconv.FormatInt(blobSize, 10)
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res.DockerContentDigest = params.Digest
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res.ReadCloser = readCloser
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return res, http.StatusOK, err
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}
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