rclone/fs/operations/copy_test.go
Nick Craig-Wood e64be7652a operations: fix invalid UTF-8 when truncating file names when not using --inplace
Before this change, when not using --inplace, rclone could generate
invalid file names when truncating file names to fit within the
character size limits.

This fixes it by taking care to truncate on UTF-8 character
boundaries.

See: https://forum.rclone.org/t/ssh-fx-failure-when-copying-file-with-nonstandard-characters-to-sftp-remote-with-ntfs-drive/42560/
2023-10-29 14:04:37 +00:00

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package operations_test
import (
"context"
"crypto/rand"
"errors"
"fmt"
"strings"
"testing"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/accounting"
"github.com/rclone/rclone/fs/operations"
"github.com/rclone/rclone/fstest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestTruncateString(t *testing.T) {
for _, test := range []struct {
in string
n int
want string
}{
{
in: "",
n: 0,
want: "",
}, {
in: "Hello World",
n: 5,
want: "Hello",
}, {
in: "ááááá",
n: 5,
want: "áá",
}, {
in: "ááááá\xFF\xFF",
n: 5,
want: "áá\xc3",
}, {
in: "世世世世世",
n: 7,
want: "世世",
}, {
in: "🙂🙂🙂🙂🙂",
n: 16,
want: "🙂🙂🙂🙂",
}, {
in: "🙂🙂🙂🙂🙂",
n: 15,
want: "🙂🙂🙂",
}, {
in: "🙂🙂🙂🙂🙂",
n: 14,
want: "🙂🙂🙂",
}, {
in: "🙂🙂🙂🙂🙂",
n: 13,
want: "🙂🙂🙂",
}, {
in: "🙂🙂🙂🙂🙂",
n: 12,
want: "🙂🙂🙂",
}, {
in: "🙂🙂🙂🙂🙂",
n: 11,
want: "🙂🙂",
}, {
in: "𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱˢⁱᵒⁿᵃʳʸ",
n: 100,
want: "𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱˢ",
}, {
in: "a𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱˢⁱᵒⁿᵃʳʸ",
n: 100,
want: "a𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱˢ",
}, {
in: "aa𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱˢⁱᵒⁿᵃʳʸ",
n: 100,
want: "aa𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱ",
}, {
in: "aaa𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱˢⁱᵒⁿᵃʳʸ",
n: 100,
want: "aaa𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱ",
}, {
in: "aaaa𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽⁱˢⁱᵒⁿᵃʳʸ",
n: 100,
want: "aaaa𝓝𝓸𝓫𝓸𝓭𝔂 𝓲𝓼 𝓱𝓸𝓶𝓮 ᴬ ⱽⁱˢⁱᵗ ᶠʳᵒᵐ ᵗʰᵉ ⱽ",
},
} {
got := operations.TruncateString(test.in, test.n)
assert.Equal(t, test.want, got, fmt.Sprintf("In %q", test.in))
assert.LessOrEqual(t, len(got), test.n)
assert.GreaterOrEqual(t, len(got), test.n-3)
}
}
func TestCopyFile(t *testing.T) {
ctx := context.Background()
r := fstest.NewRun(t)
file1 := r.WriteFile("file1", "file1 contents", t1)
r.CheckLocalItems(t, file1)
file2 := file1
file2.Path = "sub/file2"
err := operations.CopyFile(ctx, r.Fremote, r.Flocal, file2.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
err = operations.CopyFile(ctx, r.Fremote, r.Flocal, file2.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
err = operations.CopyFile(ctx, r.Fremote, r.Fremote, file2.Path, file2.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
}
func TestCopyFileBackupDir(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)
r := fstest.NewRun(t)
if !operations.CanServerSideMove(r.Fremote) {
t.Skip("Skipping test as remote does not support server-side move or copy")
}
ci.BackupDir = r.FremoteName + "/backup"
file1 := r.WriteFile("dst/file1", "file1 contents", t1)
r.CheckLocalItems(t, file1)
file1old := r.WriteObject(ctx, "dst/file1", "file1 contents old", t1)
r.CheckRemoteItems(t, file1old)
err := operations.CopyFile(ctx, r.Fremote, r.Flocal, file1.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
file1old.Path = "backup/dst/file1"
r.CheckRemoteItems(t, file1old, file1)
}
// Test with CompareDest set
func TestCopyFileCompareDest(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)
r := fstest.NewRun(t)
ci.CompareDest = []string{r.FremoteName + "/CompareDest"}
fdst, err := fs.NewFs(ctx, r.FremoteName+"/dst")
require.NoError(t, err)
// check empty dest, empty compare
file1 := r.WriteFile("one", "one", t1)
r.CheckLocalItems(t, file1)
err = operations.CopyFile(ctx, fdst, r.Flocal, file1.Path, file1.Path)
require.NoError(t, err)
file1dst := file1
file1dst.Path = "dst/one"
r.CheckRemoteItems(t, file1dst)
// check old dest, empty compare
file1b := r.WriteFile("one", "onet2", t2)
r.CheckRemoteItems(t, file1dst)
r.CheckLocalItems(t, file1b)
err = operations.CopyFile(ctx, fdst, r.Flocal, file1b.Path, file1b.Path)
require.NoError(t, err)
file1bdst := file1b
file1bdst.Path = "dst/one"
r.CheckRemoteItems(t, file1bdst)
// check old dest, new compare
file3 := r.WriteObject(ctx, "dst/one", "one", t1)
file2 := r.WriteObject(ctx, "CompareDest/one", "onet2", t2)
file1c := r.WriteFile("one", "onet2", t2)
r.CheckRemoteItems(t, file2, file3)
r.CheckLocalItems(t, file1c)
err = operations.CopyFile(ctx, fdst, r.Flocal, file1c.Path, file1c.Path)
require.NoError(t, err)
r.CheckRemoteItems(t, file2, file3)
// check empty dest, new compare
file4 := r.WriteObject(ctx, "CompareDest/two", "two", t2)
file5 := r.WriteFile("two", "two", t2)
r.CheckRemoteItems(t, file2, file3, file4)
r.CheckLocalItems(t, file1c, file5)
err = operations.CopyFile(ctx, fdst, r.Flocal, file5.Path, file5.Path)
require.NoError(t, err)
r.CheckRemoteItems(t, file2, file3, file4)
// check new dest, new compare
err = operations.CopyFile(ctx, fdst, r.Flocal, file5.Path, file5.Path)
require.NoError(t, err)
r.CheckRemoteItems(t, file2, file3, file4)
// check empty dest, old compare
file5b := r.WriteFile("two", "twot3", t3)
r.CheckRemoteItems(t, file2, file3, file4)
r.CheckLocalItems(t, file1c, file5b)
err = operations.CopyFile(ctx, fdst, r.Flocal, file5b.Path, file5b.Path)
require.NoError(t, err)
file5bdst := file5b
file5bdst.Path = "dst/two"
r.CheckRemoteItems(t, file2, file3, file4, file5bdst)
}
// Test with CopyDest set
func TestCopyFileCopyDest(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)
r := fstest.NewRun(t)
if r.Fremote.Features().Copy == nil {
t.Skip("Skipping test as remote does not support server-side copy")
}
ci.CopyDest = []string{r.FremoteName + "/CopyDest"}
fdst, err := fs.NewFs(ctx, r.FremoteName+"/dst")
require.NoError(t, err)
// check empty dest, empty copy
file1 := r.WriteFile("one", "one", t1)
r.CheckLocalItems(t, file1)
err = operations.CopyFile(ctx, fdst, r.Flocal, file1.Path, file1.Path)
require.NoError(t, err)
file1dst := file1
file1dst.Path = "dst/one"
r.CheckRemoteItems(t, file1dst)
// check old dest, empty copy
file1b := r.WriteFile("one", "onet2", t2)
r.CheckRemoteItems(t, file1dst)
r.CheckLocalItems(t, file1b)
err = operations.CopyFile(ctx, fdst, r.Flocal, file1b.Path, file1b.Path)
require.NoError(t, err)
file1bdst := file1b
file1bdst.Path = "dst/one"
r.CheckRemoteItems(t, file1bdst)
// check old dest, new copy, backup-dir
ci.BackupDir = r.FremoteName + "/BackupDir"
file3 := r.WriteObject(ctx, "dst/one", "one", t1)
file2 := r.WriteObject(ctx, "CopyDest/one", "onet2", t2)
file1c := r.WriteFile("one", "onet2", t2)
r.CheckRemoteItems(t, file2, file3)
r.CheckLocalItems(t, file1c)
err = operations.CopyFile(ctx, fdst, r.Flocal, file1c.Path, file1c.Path)
require.NoError(t, err)
file2dst := file2
file2dst.Path = "dst/one"
file3.Path = "BackupDir/one"
r.CheckRemoteItems(t, file2, file2dst, file3)
ci.BackupDir = ""
// check empty dest, new copy
file4 := r.WriteObject(ctx, "CopyDest/two", "two", t2)
file5 := r.WriteFile("two", "two", t2)
r.CheckRemoteItems(t, file2, file2dst, file3, file4)
r.CheckLocalItems(t, file1c, file5)
err = operations.CopyFile(ctx, fdst, r.Flocal, file5.Path, file5.Path)
require.NoError(t, err)
file4dst := file4
file4dst.Path = "dst/two"
r.CheckRemoteItems(t, file2, file2dst, file3, file4, file4dst)
// check new dest, new copy
err = operations.CopyFile(ctx, fdst, r.Flocal, file5.Path, file5.Path)
require.NoError(t, err)
r.CheckRemoteItems(t, file2, file2dst, file3, file4, file4dst)
// check empty dest, old copy
file6 := r.WriteObject(ctx, "CopyDest/three", "three", t2)
file7 := r.WriteFile("three", "threet3", t3)
r.CheckRemoteItems(t, file2, file2dst, file3, file4, file4dst, file6)
r.CheckLocalItems(t, file1c, file5, file7)
err = operations.CopyFile(ctx, fdst, r.Flocal, file7.Path, file7.Path)
require.NoError(t, err)
file7dst := file7
file7dst.Path = "dst/three"
r.CheckRemoteItems(t, file2, file2dst, file3, file4, file4dst, file6, file7dst)
}
func TestCopyInplace(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)
r := fstest.NewRun(t)
if !r.Fremote.Features().PartialUploads {
t.Skip("Partial uploads not supported")
}
ci.Inplace = true
file1 := r.WriteFile("file1", "file1 contents", t1)
r.CheckLocalItems(t, file1)
file2 := file1
file2.Path = "sub/file2"
err := operations.CopyFile(ctx, r.Fremote, r.Flocal, file2.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
err = operations.CopyFile(ctx, r.Fremote, r.Flocal, file2.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
err = operations.CopyFile(ctx, r.Fremote, r.Fremote, file2.Path, file2.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
}
func TestCopyLongFileName(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)
r := fstest.NewRun(t)
if !r.Fremote.Features().PartialUploads {
t.Skip("Partial uploads not supported")
}
ci.Inplace = false // the default
file1 := r.WriteFile("file1", "file1 contents", t1)
r.CheckLocalItems(t, file1)
file2 := file1
file2.Path = "sub/" + strings.Repeat("file2", 30)
err := operations.CopyFile(ctx, r.Fremote, r.Flocal, file2.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
err = operations.CopyFile(ctx, r.Fremote, r.Flocal, file2.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
err = operations.CopyFile(ctx, r.Fremote, r.Fremote, file2.Path, file2.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1)
r.CheckRemoteItems(t, file2)
}
func TestCopyFileMaxTransfer(t *testing.T) {
ctx := context.Background()
ctx, ci := fs.AddConfig(ctx)
r := fstest.NewRun(t)
defer accounting.Stats(ctx).ResetCounters()
const sizeCutoff = 2048
// Make random incompressible data
randomData := make([]byte, sizeCutoff)
_, err := rand.Read(randomData)
require.NoError(t, err)
randomString := string(randomData)
file1 := r.WriteFile("TestCopyFileMaxTransfer/file1", "file1 contents", t1)
file2 := r.WriteFile("TestCopyFileMaxTransfer/file2", "file2 contents"+randomString, t2)
file3 := r.WriteFile("TestCopyFileMaxTransfer/file3", "file3 contents"+randomString, t2)
file4 := r.WriteFile("TestCopyFileMaxTransfer/file4", "file4 contents"+randomString, t2)
// Cutoff mode: Hard
ci.MaxTransfer = sizeCutoff
ci.CutoffMode = fs.CutoffModeHard
// file1: Show a small file gets transferred OK
accounting.Stats(ctx).ResetCounters()
err = operations.CopyFile(ctx, r.Fremote, r.Flocal, file1.Path, file1.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1, file2, file3, file4)
r.CheckRemoteItems(t, file1)
// file2: show a large file does not get transferred
accounting.Stats(ctx).ResetCounters()
err = operations.CopyFile(ctx, r.Fremote, r.Flocal, file2.Path, file2.Path)
require.NotNil(t, err, "Did not get expected max transfer limit error")
if !errors.Is(err, accounting.ErrorMaxTransferLimitReachedFatal) {
t.Log("Expecting error to contain accounting.ErrorMaxTransferLimitReachedFatal")
// Sometimes the backends or their SDKs don't pass the
// error through properly, so check that it at least
// has the text we expect in.
assert.Contains(t, err.Error(), "max transfer limit reached")
}
r.CheckLocalItems(t, file1, file2, file3, file4)
r.CheckRemoteItems(t, file1)
// Cutoff mode: Cautious
ci.CutoffMode = fs.CutoffModeCautious
// file3: show a large file does not get transferred
accounting.Stats(ctx).ResetCounters()
err = operations.CopyFile(ctx, r.Fremote, r.Flocal, file3.Path, file3.Path)
require.NotNil(t, err)
assert.True(t, errors.Is(err, accounting.ErrorMaxTransferLimitReachedGraceful))
r.CheckLocalItems(t, file1, file2, file3, file4)
r.CheckRemoteItems(t, file1)
if isChunker(r.Fremote) {
t.Log("skipping remainder of test for chunker as it involves multiple transfers")
return
}
// Cutoff mode: Soft
ci.CutoffMode = fs.CutoffModeSoft
// file4: show a large file does get transferred this time
accounting.Stats(ctx).ResetCounters()
err = operations.CopyFile(ctx, r.Fremote, r.Flocal, file4.Path, file4.Path)
require.NoError(t, err)
r.CheckLocalItems(t, file1, file2, file3, file4)
r.CheckRemoteItems(t, file1, file4)
}