63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
// Copyright (C) 2022 Marius Schellenberger
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package parse
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import (
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"cachefs/pkg/provider"
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"cachefs/pkg/provider/crypto"
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"cachefs/pkg/provider/os"
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"cachefs/pkg/provider/sftp"
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"errors"
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"fmt"
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neturl "net/url"
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"path/filepath"
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"k8s.io/klog/v2/klogr"
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)
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var (
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ErrPathNotAbsolute = errors.New("path is not absolute")
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ErrUnsupportedScheme = errors.New("unsupported scheme")
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)
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func TryParse(url string) error {
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u, err := neturl.Parse(url)
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if err != nil {
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return err
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}
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if !filepath.IsAbs(u.Path) {
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return ErrPathNotAbsolute
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}
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switch u.Scheme {
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case "file", "sftp":
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default:
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return fmt.Errorf("%w: %s", ErrUnsupportedScheme, u.Scheme)
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}
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return nil
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}
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func FS(url string, key []byte, block bool) (provider.FS, error) {
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u, err := neturl.Parse(url)
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if err != nil {
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return nil, err
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}
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if !filepath.IsAbs(u.Path) {
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return nil, ErrPathNotAbsolute
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}
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var fs provider.FS
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switch u.Scheme {
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case "file":
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fs, err = os.NewFS(u.Path)
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case "sftp":
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fs, err = sftp.NewFS(u, block, klogr.New().WithName("sftp"))
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default:
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return nil, fmt.Errorf("%w: %s", ErrUnsupportedScheme, u.Scheme)
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}
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if err != nil {
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return nil, err
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}
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if key != nil {
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fs, err = crypto.NewFS(fs, key)
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}
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return fs, err
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}
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