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Knut Ahlers
4937284b0e
this breaks the previous approach of writing the zip file to the file system and letting the script unpack the files itself Signed-off-by: Knut Ahlers <knut@ahlers.me>
64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package main
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import (
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"io/fs"
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"net/http"
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"net/url"
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"path"
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"time"
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"github.com/Luzifer/go_helpers/v2/str"
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"github.com/gofrs/uuid"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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"github.com/spf13/afero"
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)
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const zipHeaderLength = 4
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func hasZipHeader(data []byte) bool {
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if len(data) < zipHeaderLength {
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// ZIP header must be 4 chars
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return false
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}
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return str.StringInSlice(string(data[:4]), []string{
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// https://en.wikipedia.org/wiki/ZIP_(file_format)
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"PK\x03\x04",
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"PK\x05\x06",
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"PK\x07\x08",
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})
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}
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func pathFromUUID(uid uuid.UUID, filename string) string {
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return path.Join(cfg.StorageDir, uid.String(), filename)
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}
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func serverErrorf(res http.ResponseWriter, err error, tpl string, args ...interface{}) {
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logrus.WithError(err).Errorf(tpl, args...)
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http.Error(res, "An error occurred. See details in log.", http.StatusInternalServerError)
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}
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func syncFilesToOverlay(base, overlay afero.Fs) error {
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cow := afero.NewCopyOnWriteFs(base, overlay)
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return errors.Wrap(
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afero.Walk(cow, "", func(path string, info fs.FileInfo, err error) error {
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if info.IsDir() {
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return nil
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}
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return errors.Wrapf(
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cow.Chtimes(path, time.Now(), time.Now()),
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"triggering copy for %s by changing time", path,
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)
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}),
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"copying files to overlay",
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)
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}
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func urlMust(u *url.URL, err error) *url.URL {
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if err != nil {
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logrus.WithError(err).Fatal("Unable to retrieve URL from router")
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}
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return u
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}
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