rclone/backend/local/local_internal_test.go
Nick Craig-Wood bd787e8f45 filter: Fix incorrect filtering with UseFilter context flag and wrapping backends
In this commit

8d1fff9a82 local: obey file filters in listing to fix errors on excluded files

We started using filters in the local backend so the user could short
circuit troublesome files/directories at a low level.

However this caused a number of integration tests to fail. This turned
out to be in backends wrapping the local backend. For example the
combine backend test failed because it changes the paths passed to the
local backend so they no longer match the paths in the current filter.

To fix this, a new feature flag `FilterAware` was added and the
UseFilter context flag is only passed to backends which support it. As
the wrapping backends don't support the flag, this fixes the problems
in the integration tests.

In future the wrapping backends could modify the active filters to
match the path modifications and then they could set the FilterAware
flag.

See #6376
2022-09-05 16:19:50 +01:00

403 lines
10 KiB
Go

package local
import (
"bytes"
"context"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"runtime"
"sort"
"testing"
"time"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/config/configmap"
"github.com/rclone/rclone/fs/filter"
"github.com/rclone/rclone/fs/hash"
"github.com/rclone/rclone/fs/object"
"github.com/rclone/rclone/fstest"
"github.com/rclone/rclone/lib/file"
"github.com/rclone/rclone/lib/readers"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TestMain drives the tests
func TestMain(m *testing.M) {
fstest.TestMain(m)
}
// Test copy with source file that's updating
func TestUpdatingCheck(t *testing.T) {
r := fstest.NewRun(t)
defer r.Finalise()
filePath := "sub dir/local test"
r.WriteFile(filePath, "content", time.Now())
fd, err := file.Open(path.Join(r.LocalName, filePath))
if err != nil {
t.Fatalf("failed opening file %q: %v", filePath, err)
}
defer func() {
require.NoError(t, fd.Close())
}()
fi, err := fd.Stat()
require.NoError(t, err)
o := &Object{size: fi.Size(), modTime: fi.ModTime(), fs: &Fs{}}
wrappedFd := readers.NewLimitedReadCloser(fd, -1)
hash, err := hash.NewMultiHasherTypes(hash.Supported())
require.NoError(t, err)
in := localOpenFile{
o: o,
in: wrappedFd,
hash: hash,
fd: fd,
}
buf := make([]byte, 1)
_, err = in.Read(buf)
require.NoError(t, err)
r.WriteFile(filePath, "content updated", time.Now())
_, err = in.Read(buf)
require.Errorf(t, err, "can't copy - source file is being updated")
// turn the checking off and try again
in.o.fs.opt.NoCheckUpdated = true
r.WriteFile(filePath, "content updated", time.Now())
_, err = in.Read(buf)
require.NoError(t, err)
}
func TestSymlink(t *testing.T) {
ctx := context.Background()
r := fstest.NewRun(t)
defer r.Finalise()
f := r.Flocal.(*Fs)
dir := f.root
// Write a file
modTime1 := fstest.Time("2001-02-03T04:05:10.123123123Z")
file1 := r.WriteFile("file.txt", "hello", modTime1)
// Write a symlink
modTime2 := fstest.Time("2002-02-03T04:05:10.123123123Z")
symlinkPath := filepath.Join(dir, "symlink.txt")
require.NoError(t, os.Symlink("file.txt", symlinkPath))
require.NoError(t, lChtimes(symlinkPath, modTime2, modTime2))
// Object viewed as symlink
file2 := fstest.NewItem("symlink.txt"+linkSuffix, "file.txt", modTime2)
// Object viewed as destination
file2d := fstest.NewItem("symlink.txt", "hello", modTime1)
// Check with no symlink flags
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t)
// Set fs into "-L" mode
f.opt.FollowSymlinks = true
f.opt.TranslateSymlinks = false
f.lstat = os.Stat
r.CheckLocalItems(t, file1, file2d)
r.CheckRemoteItems(t)
// Set fs into "-l" mode
f.opt.FollowSymlinks = false
f.opt.TranslateSymlinks = true
f.lstat = os.Lstat
fstest.CheckListingWithPrecision(t, r.Flocal, []fstest.Item{file1, file2}, nil, fs.ModTimeNotSupported)
if haveLChtimes {
r.CheckLocalItems(t, file1, file2)
}
// Create a symlink
modTime3 := fstest.Time("2002-03-03T04:05:10.123123123Z")
file3 := r.WriteObjectTo(ctx, r.Flocal, "symlink2.txt"+linkSuffix, "file.txt", modTime3, false)
fstest.CheckListingWithPrecision(t, r.Flocal, []fstest.Item{file1, file2, file3}, nil, fs.ModTimeNotSupported)
if haveLChtimes {
r.CheckLocalItems(t, file1, file2, file3)
}
// Check it got the correct contents
symlinkPath = filepath.Join(dir, "symlink2.txt")
fi, err := os.Lstat(symlinkPath)
require.NoError(t, err)
assert.False(t, fi.Mode().IsRegular())
linkText, err := os.Readlink(symlinkPath)
require.NoError(t, err)
assert.Equal(t, "file.txt", linkText)
// Check that NewObject gets the correct object
o, err := r.Flocal.NewObject(ctx, "symlink2.txt"+linkSuffix)
require.NoError(t, err)
assert.Equal(t, "symlink2.txt"+linkSuffix, o.Remote())
assert.Equal(t, int64(8), o.Size())
// Check that NewObject doesn't see the non suffixed version
_, err = r.Flocal.NewObject(ctx, "symlink2.txt")
require.Equal(t, fs.ErrorObjectNotFound, err)
// Check reading the object
in, err := o.Open(ctx)
require.NoError(t, err)
contents, err := ioutil.ReadAll(in)
require.NoError(t, err)
require.Equal(t, "file.txt", string(contents))
require.NoError(t, in.Close())
// Check reading the object with range
in, err = o.Open(ctx, &fs.RangeOption{Start: 2, End: 5})
require.NoError(t, err)
contents, err = ioutil.ReadAll(in)
require.NoError(t, err)
require.Equal(t, "file.txt"[2:5+1], string(contents))
require.NoError(t, in.Close())
}
func TestSymlinkError(t *testing.T) {
m := configmap.Simple{
"links": "true",
"copy_links": "true",
}
_, err := NewFs(context.Background(), "local", "/", m)
assert.Equal(t, errLinksAndCopyLinks, err)
}
// Test hashes on updating an object
func TestHashOnUpdate(t *testing.T) {
ctx := context.Background()
r := fstest.NewRun(t)
defer r.Finalise()
const filePath = "file.txt"
when := time.Now()
r.WriteFile(filePath, "content", when)
f := r.Flocal.(*Fs)
// Get the object
o, err := f.NewObject(ctx, filePath)
require.NoError(t, err)
// Test the hash is as we expect
md5, err := o.Hash(ctx, hash.MD5)
require.NoError(t, err)
assert.Equal(t, "9a0364b9e99bb480dd25e1f0284c8555", md5)
// Reupload it with different contents but same size and timestamp
var b = bytes.NewBufferString("CONTENT")
src := object.NewStaticObjectInfo(filePath, when, int64(b.Len()), true, nil, f)
err = o.Update(ctx, b, src)
require.NoError(t, err)
// Check the hash is as expected
md5, err = o.Hash(ctx, hash.MD5)
require.NoError(t, err)
assert.Equal(t, "45685e95985e20822fb2538a522a5ccf", md5)
}
// Test hashes on deleting an object
func TestHashOnDelete(t *testing.T) {
ctx := context.Background()
r := fstest.NewRun(t)
defer r.Finalise()
const filePath = "file.txt"
when := time.Now()
r.WriteFile(filePath, "content", when)
f := r.Flocal.(*Fs)
// Get the object
o, err := f.NewObject(ctx, filePath)
require.NoError(t, err)
// Test the hash is as we expect
md5, err := o.Hash(ctx, hash.MD5)
require.NoError(t, err)
assert.Equal(t, "9a0364b9e99bb480dd25e1f0284c8555", md5)
// Delete the object
require.NoError(t, o.Remove(ctx))
// Test the hash cache is empty
require.Nil(t, o.(*Object).hashes)
// Test the hash returns an error
_, err = o.Hash(ctx, hash.MD5)
require.Error(t, err)
}
func TestMetadata(t *testing.T) {
ctx := context.Background()
r := fstest.NewRun(t)
defer r.Finalise()
const filePath = "metafile.txt"
when := time.Now()
const dayLength = len("2001-01-01")
whenRFC := when.Format(time.RFC3339Nano)
r.WriteFile(filePath, "metadata file contents", when)
f := r.Flocal.(*Fs)
// Get the object
obj, err := f.NewObject(ctx, filePath)
require.NoError(t, err)
o := obj.(*Object)
features := f.Features()
var hasXID, hasAtime, hasBtime bool
switch runtime.GOOS {
case "darwin", "freebsd", "netbsd", "linux":
hasXID, hasAtime, hasBtime = true, true, true
case "openbsd", "solaris":
hasXID, hasAtime = true, true
case "windows":
hasAtime, hasBtime = true, true
case "plan9", "js":
// nada
default:
t.Errorf("No test cases for OS %q", runtime.GOOS)
}
assert.True(t, features.ReadMetadata)
assert.True(t, features.WriteMetadata)
assert.Equal(t, xattrSupported, features.UserMetadata)
t.Run("Xattr", func(t *testing.T) {
if !xattrSupported {
t.Skip()
}
m, err := o.getXattr()
require.NoError(t, err)
assert.Nil(t, m)
inM := fs.Metadata{
"potato": "chips",
"cabbage": "soup",
}
err = o.setXattr(inM)
require.NoError(t, err)
m, err = o.getXattr()
require.NoError(t, err)
assert.NotNil(t, m)
assert.Equal(t, inM, m)
})
checkTime := func(m fs.Metadata, key string, when time.Time) {
mt, ok := o.parseMetadataTime(m, key)
assert.True(t, ok)
dt := mt.Sub(when)
precision := time.Second
assert.True(t, dt >= -precision && dt <= precision, fmt.Sprintf("%s: dt %v outside +/- precision %v", key, dt, precision))
}
checkInt := func(m fs.Metadata, key string, base int) int {
value, ok := o.parseMetadataInt(m, key, base)
assert.True(t, ok)
return value
}
t.Run("Read", func(t *testing.T) {
m, err := o.Metadata(ctx)
require.NoError(t, err)
assert.NotNil(t, m)
// All OSes have these
checkInt(m, "mode", 8)
checkTime(m, "mtime", when)
assert.Equal(t, len(whenRFC), len(m["mtime"]))
assert.Equal(t, whenRFC[:dayLength], m["mtime"][:dayLength])
if hasAtime {
checkTime(m, "atime", when)
}
if hasBtime {
checkTime(m, "btime", when)
}
if hasXID {
checkInt(m, "uid", 10)
checkInt(m, "gid", 10)
}
})
t.Run("Write", func(t *testing.T) {
newAtimeString := "2011-12-13T14:15:16.999999999Z"
newAtime := fstest.Time(newAtimeString)
newMtimeString := "2011-12-12T14:15:16.999999999Z"
newMtime := fstest.Time(newMtimeString)
newBtimeString := "2011-12-11T14:15:16.999999999Z"
newBtime := fstest.Time(newBtimeString)
newM := fs.Metadata{
"mtime": newMtimeString,
"atime": newAtimeString,
"btime": newBtimeString,
// Can't test uid, gid without being root
"mode": "0767",
"potato": "wedges",
}
err := o.writeMetadata(newM)
require.NoError(t, err)
m, err := o.Metadata(ctx)
require.NoError(t, err)
assert.NotNil(t, m)
mode := checkInt(m, "mode", 8)
if runtime.GOOS != "windows" {
assert.Equal(t, 0767, mode&0777, fmt.Sprintf("mode wrong - expecting 0767 got 0%o", mode&0777))
}
checkTime(m, "mtime", newMtime)
if hasAtime {
checkTime(m, "atime", newAtime)
}
if haveSetBTime {
checkTime(m, "btime", newBtime)
}
if xattrSupported {
assert.Equal(t, "wedges", m["potato"])
}
})
}
func TestFilter(t *testing.T) {
ctx := context.Background()
r := fstest.NewRun(t)
defer r.Finalise()
when := time.Now()
r.WriteFile("included", "included file", when)
r.WriteFile("excluded", "excluded file", when)
f := r.Flocal.(*Fs)
// Check set up for filtering
assert.True(t, f.Features().FilterAware)
// Add a filter
ctx, fi := filter.AddConfig(ctx)
require.NoError(t, fi.AddRule("+ included"))
require.NoError(t, fi.AddRule("- *"))
// Check listing without use filter flag
entries, err := f.List(ctx, "")
require.NoError(t, err)
sort.Sort(entries)
require.Equal(t, "[excluded included]", fmt.Sprint(entries))
// Add user filter flag
ctx = filter.SetUseFilter(ctx, true)
// Check listing with use filter flag
entries, err = f.List(ctx, "")
require.NoError(t, err)
sort.Sort(entries)
require.Equal(t, "[included]", fmt.Sprint(entries))
}