54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
package repocli
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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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func (cli *Client) GetBlob(ctx context.Context, rawrepo string, writer io.Writer, digest string) (bool, error) {
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var err error
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var exist bool
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ref, err := NewReferer(rawrepo)
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if err != nil {
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return exist, err
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}
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uri := ref.BlobEP(digest)
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, uri, nil)
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if err != nil {
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return exist, err
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}
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req.Header.Set("User-Agent", cli.userAgent)
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req.Header.Set("Accept", "*/*")
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resp, err := cli.httpClient.Do(req)
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if err != nil {
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return exist, err
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusNotFound {
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return exist, err
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}
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if resp.StatusCode != http.StatusOK {
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err := fmt.Errorf("Unexpected response code %s", resp.Status)
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return exist, err
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}
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contentLength := resp.Header.Get("Content-Length")
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blobSize, err := strconv.ParseInt(contentLength, 10, 64)
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if err != nil {
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return exist, err
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}
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recSize, err := Copy(ctx, writer, resp.Body)
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if blobSize != recSize {
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err := fmt.Errorf("Mismatch declared and actual body size, %d and %d", blobSize, recSize)
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return exist, err
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}
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exist = true
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return exist, err
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}
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