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58 lines
1.5 KiB
58 lines
1.5 KiB
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package lfs
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"net/http"
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)
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// TransferAdapter represents an adapter for downloading/uploading LFS objects
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type TransferAdapter interface {
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Name() string
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Download(ctx context.Context, r *ObjectResponse) (io.ReadCloser, error)
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//Upload(ctx context.Context, reader io.Reader) error
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}
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// BasicTransferAdapter implements the "basic" adapter
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type BasicTransferAdapter struct {
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client *http.Client
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}
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// Name returns the name of the adapter
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func (a *BasicTransferAdapter) Name() string {
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return "basic"
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}
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// Download reads the download location and downloads the data
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func (a *BasicTransferAdapter) Download(ctx context.Context, r *ObjectResponse) (io.ReadCloser, error) {
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download, ok := r.Actions["download"]
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if !ok {
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return nil, errors.New("lfs.BasicTransferAdapter.Download: Action 'download' not found")
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}
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req, err := http.NewRequestWithContext(ctx, "GET", download.Href, nil)
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if err != nil {
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return nil, fmt.Errorf("lfs.BasicTransferAdapter.Download http.NewRequestWithContext: %w", err)
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}
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for key, value := range download.Header {
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req.Header.Set(key, value)
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}
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res, err := a.client.Do(req)
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if err != nil {
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select {
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case <-ctx.Done():
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return nil, ctx.Err()
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default:
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}
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return nil, fmt.Errorf("lfs.BasicTransferAdapter.Download http.Do: %w", err)
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}
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return res.Body, nil
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}
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