mirror of
https://github.com/octoleo/restic.git
synced 2024-12-22 10:58:55 +00:00
restorer: Add tests for invalid node names
This commit is contained in:
Alexander Neumann
parent
abde9e2fba
commit
8a171731ba
312
internal/restic/restorer_test.go
Normal file
312
internal/restic/restorer_test.go
Normal file
@ -0,0 +1,312 @@
|
||||
package restic_test
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"context"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/restic/restic/internal/fs"
|
||||
"github.com/restic/restic/internal/repository"
|
||||
"github.com/restic/restic/internal/restic"
|
||||
rtest "github.com/restic/restic/internal/test"
|
||||
)
|
||||
|
||||
type Node interface{}
|
||||
|
||||
type Snapshot struct {
|
||||
Nodes map[string]Node
|
||||
treeID restic.ID
|
||||
}
|
||||
|
||||
type File struct {
|
||||
Data string
|
||||
}
|
||||
|
||||
type Dir struct {
|
||||
Nodes map[string]Node
|
||||
}
|
||||
|
||||
func saveFile(t testing.TB, repo restic.Repository, node File) restic.ID {
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
id, err := repo.SaveBlob(ctx, restic.DataBlob, []byte(node.Data), restic.ID{})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
return id
|
||||
}
|
||||
|
||||
func saveDir(t testing.TB, repo restic.Repository, nodes map[string]Node) restic.ID {
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
tree := &restic.Tree{}
|
||||
for name, n := range nodes {
|
||||
var id restic.ID
|
||||
switch node := n.(type) {
|
||||
case File:
|
||||
id = saveFile(t, repo, node)
|
||||
tree.Insert(&restic.Node{
|
||||
Type: "file",
|
||||
Mode: 0644,
|
||||
Name: name,
|
||||
UID: uint32(os.Getuid()),
|
||||
GID: uint32(os.Getgid()),
|
||||
Content: []restic.ID{id},
|
||||
})
|
||||
case Dir:
|
||||
id = saveDir(t, repo, node.Nodes)
|
||||
tree.Insert(&restic.Node{
|
||||
Type: "dir",
|
||||
Mode: 0755,
|
||||
Name: name,
|
||||
UID: uint32(os.Getuid()),
|
||||
GID: uint32(os.Getgid()),
|
||||
Subtree: &id,
|
||||
})
|
||||
default:
|
||||
t.Fatalf("unknown node type %T", node)
|
||||
}
|
||||
}
|
||||
|
||||
id, err := repo.SaveTree(ctx, tree)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
return id
|
||||
}
|
||||
|
||||
func saveSnapshot(t testing.TB, repo restic.Repository, snapshot Snapshot) (restic.Repository, restic.ID) {
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
treeID := saveDir(t, repo, snapshot.Nodes)
|
||||
|
||||
err := repo.Flush()
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
err = repo.SaveIndex(ctx)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
sn, err := restic.NewSnapshot([]string{"test"}, nil, "", time.Now())
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
sn.Tree = &treeID
|
||||
id, err := repo.SaveJSONUnpacked(ctx, restic.SnapshotFile, sn)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
return repo, id
|
||||
}
|
||||
|
||||
// toSlash converts the OS specific path dir to a slash-separated path.
|
||||
func toSlash(dir string) string {
|
||||
data := strings.Split(dir, string(filepath.Separator))
|
||||
return strings.Join(data, "/")
|
||||
}
|
||||
|
||||
func TestRestorer(t *testing.T) {
|
||||
var tests = []struct {
|
||||
Snapshot
|
||||
Files map[string]string
|
||||
ErrorsMust map[string]string
|
||||
ErrorsMay map[string]string
|
||||
}{
|
||||
// valid test cases
|
||||
{
|
||||
Snapshot: Snapshot{
|
||||
Nodes: map[string]Node{
|
||||
"foo": File{"content: foo\n"},
|
||||
"dirtest": Dir{
|
||||
Nodes: map[string]Node{
|
||||
"file": File{"content: file\n"},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
Files: map[string]string{
|
||||
"foo": "content: foo\n",
|
||||
"dirtest/file": "content: file\n",
|
||||
},
|
||||
},
|
||||
{
|
||||
Snapshot: Snapshot{
|
||||
Nodes: map[string]Node{
|
||||
"top": File{"toplevel file"},
|
||||
"dir": Dir{
|
||||
Nodes: map[string]Node{
|
||||
"file": File{"file in dir"},
|
||||
"subdir": Dir{
|
||||
Nodes: map[string]Node{
|
||||
"file": File{"file in subdir"},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
Files: map[string]string{
|
||||
"top": "toplevel file",
|
||||
"dir/file": "file in dir",
|
||||
"dir/subdir/file": "file in subdir",
|
||||
},
|
||||
},
|
||||
|
||||
// test cases with invalid/constructed names
|
||||
{
|
||||
Snapshot: Snapshot{
|
||||
Nodes: map[string]Node{
|
||||
`..\test`: File{"foo\n"},
|
||||
`..\..\foo\..\bar\..\xx\test2`: File{"test2\n"},
|
||||
},
|
||||
},
|
||||
ErrorsMay: map[string]string{
|
||||
`/#..\test`: "node has invalid name",
|
||||
`/#..\..\foo\..\bar\..\xx\test2`: "node has invalid name",
|
||||
},
|
||||
},
|
||||
{
|
||||
Snapshot: Snapshot{
|
||||
Nodes: map[string]Node{
|
||||
`../test`: File{"foo\n"},
|
||||
`../../foo/../bar/../xx/test2`: File{"test2\n"},
|
||||
},
|
||||
},
|
||||
ErrorsMay: map[string]string{
|
||||
`/#../test`: "node has invalid name",
|
||||
`/#../../foo/../bar/../xx/test2`: "node has invalid name",
|
||||
},
|
||||
},
|
||||
{
|
||||
Snapshot: Snapshot{
|
||||
Nodes: map[string]Node{
|
||||
"top": File{"toplevel file"},
|
||||
"x": Dir{
|
||||
Nodes: map[string]Node{
|
||||
"file1": File{"file1"},
|
||||
"..": Dir{
|
||||
Nodes: map[string]Node{
|
||||
"file2": File{"file2"},
|
||||
"..": Dir{
|
||||
Nodes: map[string]Node{
|
||||
"file2": File{"file2"},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
Files: map[string]string{
|
||||
"top": "toplevel file",
|
||||
},
|
||||
ErrorsMust: map[string]string{
|
||||
`/x#..`: "node has invalid name",
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
t.Run("", func(t *testing.T) {
|
||||
repo, cleanup := repository.TestRepository(t)
|
||||
defer cleanup()
|
||||
_, id := saveSnapshot(t, repo, test.Snapshot)
|
||||
t.Logf("snapshot saved as %v", id.Str())
|
||||
|
||||
res, err := restic.NewRestorer(repo, id)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
tempdir, cleanup := rtest.TempDir(t)
|
||||
defer cleanup()
|
||||
|
||||
res.SelectFilter = func(item, dstpath string, node *restic.Node) (selectedForRestore bool, childMayBeSelected bool) {
|
||||
t.Logf("restore %v to %v", item, dstpath)
|
||||
if !fs.HasPathPrefix(tempdir, dstpath) {
|
||||
t.Errorf("would restore %v to %v, which is not within the target dir %v",
|
||||
item, dstpath, tempdir)
|
||||
return false, false
|
||||
}
|
||||
return true, true
|
||||
}
|
||||
|
||||
errors := make(map[string]string)
|
||||
res.Error = func(dir string, node *restic.Node, err error) error {
|
||||
t.Logf("restore returned error for %q in dir %v: %v", node.Name, dir, err)
|
||||
dir = toSlash(dir)
|
||||
errors[dir+"#"+node.Name] = err.Error()
|
||||
return nil
|
||||
}
|
||||
|
||||
ctx, cancel := context.WithCancel(context.Background())
|
||||
defer cancel()
|
||||
|
||||
err = res.RestoreTo(ctx, tempdir)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
for filename, errorMessage := range test.ErrorsMust {
|
||||
msg, ok := errors[filename]
|
||||
if !ok {
|
||||
t.Errorf("expected error for %v, found none", filename)
|
||||
continue
|
||||
}
|
||||
|
||||
if msg != "" && msg != errorMessage {
|
||||
t.Errorf("wrong error message for %v: got %q, want %q",
|
||||
filename, msg, errorMessage)
|
||||
}
|
||||
|
||||
delete(errors, filename)
|
||||
}
|
||||
|
||||
for filename, errorMessage := range test.ErrorsMay {
|
||||
msg, ok := errors[filename]
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
|
||||
if msg != "" && msg != errorMessage {
|
||||
t.Errorf("wrong error message for %v: got %q, want %q",
|
||||
filename, msg, errorMessage)
|
||||
}
|
||||
|
||||
delete(errors, filename)
|
||||
}
|
||||
|
||||
for filename, err := range errors {
|
||||
t.Errorf("unexpected error for %v found: %v", filename, err)
|
||||
}
|
||||
|
||||
for filename, content := range test.Files {
|
||||
data, err := ioutil.ReadFile(filepath.Join(tempdir, filepath.FromSlash(filename)))
|
||||
if err != nil {
|
||||
t.Errorf("unable to read file %v: %v", filename, err)
|
||||
continue
|
||||
}
|
||||
|
||||
if !bytes.Equal(data, []byte(content)) {
|
||||
t.Errorf("file %v has wrong content: want %q, got %q", filename, content, data)
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user