93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
package main
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import (
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"archive/zip"
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"fmt"
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"io"
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"log"
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"strings"
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"go.uber.org/multierr"
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"srs.epita.fr/fic-server/admin/sync"
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"srs.epita.fr/fic-server/libfic"
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)
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func checkZip(file *fic.EFile, exceptions *sync.CheckExceptions) (errs error) {
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fd, closer, err := sync.GetFile(sync.GlobalImporter, file.GetOrigin())
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if err != nil {
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log.Printf("Unable to open %q: %s", file.GetOrigin(), err.Error())
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return
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}
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defer closer()
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fdat, ok := fd.(io.ReaderAt)
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if !ok {
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log.Printf("The current Importer (%t) doesn't allow me to check the archive: %s. Please test-it yourself", sync.GlobalImporter, file.GetOrigin())
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return
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}
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size, err := sync.GetFileSize(sync.GlobalImporter, file.GetOrigin())
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if err != nil {
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log.Printf("Unable to calculate size of %q: %s", file.GetOrigin(), err.Error())
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return
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}
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r, err := zip.NewReader(fdat, size)
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if err != nil {
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log.Printf("Unable to open %q: %s", file.GetOrigin(), err.Error())
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return
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}
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if len(r.File) < 2 {
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if !exceptions.HasException(":one-file-tarball") {
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errs = multierr.Append(errs, fmt.Errorf("don't make a ZIP archive for one file, use gzip instead"))
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}
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} else if len(r.File) < 5 && false {
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if !exceptions.HasException(":few-files-tarball") {
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errs = multierr.Append(errs, fmt.Errorf("don't make a ZIP archive for so little files (:few-files-tarball)"))
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}
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} else {
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log.Printf("%d files found in %q", len(r.File), file.Name)
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}
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foundEtcDir := false
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foundHomeDir := false
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foundRootDir := false
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foundVarDir := false
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for _, file := range r.File {
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if strings.HasPrefix(file.Name, "etc") {
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foundEtcDir = true
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}
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if strings.HasPrefix(file.Name, "home") {
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foundHomeDir = true
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}
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if strings.HasPrefix(file.Name, "root") {
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foundRootDir = true
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}
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if strings.HasPrefix(file.Name, "var") {
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foundVarDir = true
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}
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}
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nbLinuxDirFound := 0
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if foundEtcDir {
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nbLinuxDirFound += 1
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}
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if foundHomeDir {
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nbLinuxDirFound += 1
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}
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if foundRootDir {
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nbLinuxDirFound += 1
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}
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if foundVarDir {
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nbLinuxDirFound += 1
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}
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if nbLinuxDirFound > 2 && !exceptions.HasException(":not-a-linux-rootfs") {
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errs = multierr.Append(errs, fmt.Errorf("don't use a ZIP archive to store an Unix file system, prefer a tarball (:not-a-linux-rootfs)"))
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}
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return
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}
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