syncthing/lib/fs/basicfs_test.go
Jakob Borg adce6fa473
all: Support syncing ownership (fixes #1329) (#8434)
This adds support for syncing ownership on Unixes and on Windows. The
scanner always picks up ownership information, but it is not applied
unless the new folder option "Sync Ownership" is set.

Ownership data is stored in a new FileInfo field called "platform data". This
is intended to hold further platform-specific data in the future
(specifically, extended attributes), which is why the whole design is a
bit overkill for just ownership.
2022-07-26 08:24:58 +02:00

580 lines
14 KiB
Go

// Copyright (C) 2017 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package fs
import (
"os"
"path/filepath"
"runtime"
"sort"
"strconv"
"strings"
"testing"
"time"
"github.com/syncthing/syncthing/lib/rand"
)
func setup(t *testing.T) (*BasicFilesystem, string) {
t.Helper()
dir := t.TempDir()
return newBasicFilesystem(dir), dir
}
func TestChmodFile(t *testing.T) {
fs, dir := setup(t)
path := filepath.Join(dir, "file")
defer os.Chmod(path, 0666)
fd, err := os.Create(path)
if err != nil {
t.Error(err)
}
fd.Close()
if err := os.Chmod(path, 0666); err != nil {
t.Error(err)
}
if stat, err := os.Stat(path); err != nil || stat.Mode()&os.ModePerm != 0666 {
t.Errorf("wrong perm: %t %#o", err == nil, stat.Mode()&os.ModePerm)
}
if err := fs.Chmod("file", 0444); err != nil {
t.Error(err)
}
if stat, err := os.Stat(path); err != nil || stat.Mode()&os.ModePerm != 0444 {
t.Errorf("wrong perm: %t %#o", err == nil, stat.Mode()&os.ModePerm)
}
}
func TestChownFile(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Not supported on Windows")
return
}
if os.Getuid() != 0 {
// We are not root. No expectation of being able to chown. Our tests
// typically don't run with CAP_FOWNER.
t.Skip("Test not possible")
return
}
fs, dir := setup(t)
path := filepath.Join(dir, "file")
defer os.Chmod(path, 0666)
fd, err := os.Create(path)
if err != nil {
t.Error("Unexpected error:", err)
}
fd.Close()
_, err = fs.Lstat("file")
if err != nil {
t.Error("Unexpected error:", err)
}
newUID := 1000 + rand.Intn(30000)
newGID := 1000 + rand.Intn(30000)
if err := fs.Lchown("file", strconv.Itoa(newUID), strconv.Itoa(newGID)); err != nil {
t.Error("Unexpected error:", err)
}
info, err := fs.Lstat("file")
if err != nil {
t.Error("Unexpected error:", err)
}
if info.Owner() != newUID {
t.Errorf("Incorrect owner, expected %d but got %d", newUID, info.Owner())
}
if info.Group() != newGID {
t.Errorf("Incorrect group, expected %d but got %d", newGID, info.Group())
}
}
func TestChmodDir(t *testing.T) {
fs, dir := setup(t)
path := filepath.Join(dir, "dir")
mode := os.FileMode(0755)
if runtime.GOOS == "windows" {
mode = os.FileMode(0777)
}
defer os.Chmod(path, mode)
if err := os.Mkdir(path, mode); err != nil {
t.Error(err)
}
// On UNIX, Mkdir will subtract the umask, so force desired mode explicitly
if err := os.Chmod(path, mode); err != nil {
t.Error(err)
}
if stat, err := os.Stat(path); err != nil || stat.Mode()&os.ModePerm != mode {
t.Errorf("wrong perm: %t %#o", err == nil, stat.Mode()&os.ModePerm)
}
if err := fs.Chmod("dir", 0555); err != nil {
t.Error(err)
}
if stat, err := os.Stat(path); err != nil || stat.Mode()&os.ModePerm != 0555 {
t.Errorf("wrong perm: %t %#o", err == nil, stat.Mode()&os.ModePerm)
}
}
func TestChtimes(t *testing.T) {
fs, dir := setup(t)
path := filepath.Join(dir, "file")
fd, err := os.Create(path)
if err != nil {
t.Error(err)
}
fd.Close()
mtime := time.Now().Add(-time.Hour)
fs.Chtimes("file", mtime, mtime)
stat, err := os.Stat(path)
if err != nil {
t.Error(err)
}
diff := stat.ModTime().Sub(mtime)
if diff > 3*time.Second || diff < -3*time.Second {
t.Errorf("%s != %s", stat.Mode(), mtime)
}
}
func TestCreate(t *testing.T) {
fs, dir := setup(t)
path := filepath.Join(dir, "file")
if _, err := os.Stat(path); err == nil {
t.Errorf("exists?")
}
fd, err := fs.Create("file")
if err != nil {
t.Error(err)
}
fd.Close()
if _, err := os.Stat(path); err != nil {
t.Error(err)
}
}
func TestCreateSymlink(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("windows not supported")
}
fs, dir := setup(t)
path := filepath.Join(dir, "file")
if err := fs.CreateSymlink("blah", "file"); err != nil {
t.Error(err)
}
if target, err := os.Readlink(path); err != nil || target != "blah" {
t.Error("target", target, "err", err)
}
if err := os.Remove(path); err != nil {
t.Error(err)
}
if err := fs.CreateSymlink(filepath.Join("..", "blah"), "file"); err != nil {
t.Error(err)
}
if target, err := os.Readlink(path); err != nil || target != filepath.Join("..", "blah") {
t.Error("target", target, "err", err)
}
}
func TestDirNames(t *testing.T) {
fs, dir := setup(t)
// Case differences
testCases := []string{
"a",
"bC",
}
sort.Strings(testCases)
for _, sub := range testCases {
if err := os.Mkdir(filepath.Join(dir, sub), 0777); err != nil {
t.Error(err)
}
}
if dirs, err := fs.DirNames("."); err != nil || len(dirs) != len(testCases) {
t.Errorf("%s %s %s", err, dirs, testCases)
} else {
sort.Strings(dirs)
for i := range dirs {
if dirs[i] != testCases[i] {
t.Errorf("%s != %s", dirs[i], testCases[i])
}
}
}
}
func TestNames(t *testing.T) {
// Tests that all names are without the root directory.
fs, _ := setup(t)
expected := "file"
fd, err := fs.Create(expected)
if err != nil {
t.Error(err)
}
defer fd.Close()
if fd.Name() != expected {
t.Errorf("incorrect %s != %s", fd.Name(), expected)
}
if stat, err := fd.Stat(); err != nil || stat.Name() != expected {
t.Errorf("incorrect %s != %s (%v)", stat.Name(), expected, err)
}
if err := fs.Mkdir("dir", 0777); err != nil {
t.Error(err)
}
expected = filepath.Join("dir", "file")
fd, err = fs.Create(expected)
if err != nil {
t.Error(err)
}
defer fd.Close()
if fd.Name() != expected {
t.Errorf("incorrect %s != %s", fd.Name(), expected)
}
// os.fd.Stat() returns just base, so do we.
if stat, err := fd.Stat(); err != nil || stat.Name() != filepath.Base(expected) {
t.Errorf("incorrect %s != %s (%v)", stat.Name(), filepath.Base(expected), err)
}
}
func TestGlob(t *testing.T) {
// Tests that all names are without the root directory.
fs, _ := setup(t)
for _, dirToCreate := range []string{
filepath.Join("a", "test", "b"),
filepath.Join("a", "best", "b"),
filepath.Join("a", "best", "c"),
} {
if err := fs.MkdirAll(dirToCreate, 0777); err != nil {
t.Error(err)
}
}
testCases := []struct {
pattern string
matches []string
}{
{
filepath.Join("a", "?est", "?"),
[]string{
filepath.Join("a", "test", "b"),
filepath.Join("a", "best", "b"),
filepath.Join("a", "best", "c"),
},
},
{
filepath.Join("a", "?est", "b"),
[]string{
filepath.Join("a", "test", "b"),
filepath.Join("a", "best", "b"),
},
},
{
filepath.Join("a", "best", "?"),
[]string{
filepath.Join("a", "best", "b"),
filepath.Join("a", "best", "c"),
},
},
}
for _, testCase := range testCases {
results, err := fs.Glob(testCase.pattern)
sort.Strings(results)
sort.Strings(testCase.matches)
if err != nil {
t.Error(err)
}
if len(results) != len(testCase.matches) {
t.Errorf("result count mismatch")
}
for i := range testCase.matches {
if results[i] != testCase.matches[i] {
t.Errorf("%s != %s", results[i], testCase.matches[i])
}
}
}
}
func TestUsage(t *testing.T) {
fs, _ := setup(t)
usage, err := fs.Usage(".")
if err != nil {
if runtime.GOOS == "netbsd" || runtime.GOOS == "openbsd" || runtime.GOOS == "solaris" {
t.Skip()
}
t.Errorf("Unexpected error: %s", err)
}
if usage.Free < 1 {
t.Error("Disk is full?", usage.Free)
}
}
func TestRooted(t *testing.T) {
type testcase struct {
root string
rel string
joined string
ok bool
}
cases := []testcase{
// Valid cases
{"foo", "bar", "foo/bar", true},
{"foo", "/bar", "foo/bar", true},
{"foo/", "bar", "foo/bar", true},
{"foo/", "/bar", "foo/bar", true},
{"baz/foo", "bar", "baz/foo/bar", true},
{"baz/foo", "/bar", "baz/foo/bar", true},
{"baz/foo/", "bar", "baz/foo/bar", true},
{"baz/foo/", "/bar", "baz/foo/bar", true},
{"foo", "bar/baz", "foo/bar/baz", true},
{"foo", "/bar/baz", "foo/bar/baz", true},
{"foo/", "bar/baz", "foo/bar/baz", true},
{"foo/", "/bar/baz", "foo/bar/baz", true},
{"baz/foo", "bar/baz", "baz/foo/bar/baz", true},
{"baz/foo", "/bar/baz", "baz/foo/bar/baz", true},
{"baz/foo/", "bar/baz", "baz/foo/bar/baz", true},
{"baz/foo/", "/bar/baz", "baz/foo/bar/baz", true},
// Not escape attempts, but oddly formatted relative paths.
{"foo", "", "foo", true},
{"foo", "/", "foo", true},
{"foo", "/..", "foo", true},
{"foo", "./bar", "foo/bar", true},
{"foo/", "", "foo", true},
{"foo/", "/", "foo", true},
{"foo/", "/..", "foo", true},
{"foo/", "./bar", "foo/bar", true},
{"baz/foo", "./bar", "baz/foo/bar", true},
{"foo", "./bar/baz", "foo/bar/baz", true},
{"baz/foo", "./bar/baz", "baz/foo/bar/baz", true},
{"baz/foo", "bar/../baz", "baz/foo/baz", true},
{"baz/foo", "/bar/../baz", "baz/foo/baz", true},
{"baz/foo", "./bar/../baz", "baz/foo/baz", true},
// Results in an allowed path, but does it by probing. Disallowed.
{"foo", "../foo", "", false},
{"foo", "../foo/bar", "", false},
{"baz/foo", "../foo/bar", "", false},
{"baz/foo", "../../baz/foo/bar", "", false},
{"baz/foo", "bar/../../foo/bar", "", false},
{"baz/foo", "bar/../../../baz/foo/bar", "", false},
// Escape attempts.
{"foo", "..", "", false},
{"foo", "../", "", false},
{"foo", "../bar", "", false},
{"foo", "../foobar", "", false},
{"foo/", "../bar", "", false},
{"foo/", "../foobar", "", false},
{"baz/foo", "../bar", "", false},
{"baz/foo", "../foobar", "", false},
{"baz/foo/", "../bar", "", false},
{"baz/foo/", "../foobar", "", false},
{"baz/foo/", "bar/../../quux/baz", "", false},
// Empty root is a misconfiguration.
{"", "/foo", "", false},
{"", "foo", "", false},
{"", ".", "", false},
{"", "..", "", false},
{"", "/", "", false},
{"", "", "", false},
// Root=/ is valid, and things should be verified as usual.
{"/", "foo", "/foo", true},
{"/", "/foo", "/foo", true},
{"/", "../foo", "", false},
{"/", "..", "", false},
{"/", "/", "/", true},
{"/", "", "/", true},
// special case for filesystems to be able to MkdirAll('.') for example
{"/", ".", "/", true},
}
if runtime.GOOS == "windows" {
extraCases := []testcase{
{`c:\`, `foo`, `c:\foo`, true},
{`\\?\c:\`, `foo`, `\\?\c:\foo`, true},
{`c:\`, `\foo`, `c:\foo`, true},
{`\\?\c:\`, `\foo`, `\\?\c:\foo`, true},
{`c:\`, `\\foo`, ``, false},
{`c:\`, ``, `c:\`, true},
{`c:\`, `\`, `c:\`, true},
{`\\?\c:\`, `\\foo`, ``, false},
{`\\?\c:\`, ``, `\\?\c:\`, true},
{`\\?\c:\`, `\`, `\\?\c:\`, true},
{`\\?\c:\test`, `.`, `\\?\c:\test`, true},
{`c:\test`, `.`, `c:\test`, true},
{`\\?\c:\test`, `/`, `\\?\c:\test`, true},
{`c:\test`, ``, `c:\test`, true},
// makes no sense, but will be treated simply as a bad filename
{`c:\foo`, `d:\bar`, `c:\foo\d:\bar`, true},
// special case for filesystems to be able to MkdirAll('.') for example
{`c:\`, `.`, `c:\`, true},
{`\\?\c:\`, `.`, `\\?\c:\`, true},
}
for _, tc := range cases {
// Add case where root is backslashed, rel is forward slashed
extraCases = append(extraCases, testcase{
root: filepath.FromSlash(tc.root),
rel: tc.rel,
joined: tc.joined,
ok: tc.ok,
})
// and the opposite
extraCases = append(extraCases, testcase{
root: tc.root,
rel: filepath.FromSlash(tc.rel),
joined: tc.joined,
ok: tc.ok,
})
// and both backslashed
extraCases = append(extraCases, testcase{
root: filepath.FromSlash(tc.root),
rel: filepath.FromSlash(tc.rel),
joined: tc.joined,
ok: tc.ok,
})
}
cases = append(cases, extraCases...)
}
for _, tc := range cases {
fs := BasicFilesystem{root: tc.root}
res, err := fs.rooted(tc.rel)
if tc.ok {
if err != nil {
t.Errorf("Unexpected error for rooted(%q, %q): %v", tc.root, tc.rel, err)
continue
}
exp := filepath.FromSlash(tc.joined)
if res != exp {
t.Errorf("Unexpected result for rooted(%q, %q): %q != expected %q", tc.root, tc.rel, res, exp)
}
} else if err == nil {
t.Errorf("Unexpected pass for rooted(%q, %q) => %q", tc.root, tc.rel, res)
continue
}
}
}
func TestNewBasicFilesystem(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("non-windows root paths")
}
currentDir, err := filepath.Abs(".")
if err != nil {
t.Fatal(err)
}
testCases := []struct {
input string
expectedRoot string
expectedURI string
}{
{"/foo/bar/baz", "/foo/bar/baz", "/foo/bar/baz"},
{"/foo/bar/baz/", "/foo/bar/baz", "/foo/bar/baz"},
{"", currentDir, currentDir},
{".", currentDir, currentDir},
{"/", "/", "/"},
}
for _, testCase := range testCases {
fs := newBasicFilesystem(testCase.input)
if fs.root != testCase.expectedRoot {
t.Errorf("root %q != %q", fs.root, testCase.expectedRoot)
}
if fs.URI() != testCase.expectedURI {
t.Errorf("uri %q != %q", fs.URI(), testCase.expectedURI)
}
}
fs := newBasicFilesystem("relative/path")
if fs.root == "relative/path" || !strings.HasPrefix(fs.root, string(PathSeparator)) {
t.Errorf(`newBasicFilesystem("relative/path").root == %q, expected absolutification`, fs.root)
}
}
func TestRel(t *testing.T) {
testCases := []struct {
root string
abs string
expectedRel string
}{
{"/", "/", ""},
{"/", "/test", "test"},
{"/", "/Test", "Test"},
{"/Test", "/Test/test", "test"},
}
if runtime.GOOS == "windows" {
for i := range testCases {
testCases[i].root = filepath.FromSlash(testCases[i].root)
testCases[i].abs = filepath.FromSlash(testCases[i].abs)
testCases[i].expectedRel = filepath.FromSlash(testCases[i].expectedRel)
}
}
for _, tc := range testCases {
if res := rel(tc.abs, tc.root); res != tc.expectedRel {
t.Errorf(`rel("%v", "%v") == "%v", expected "%v"`, tc.abs, tc.root, res, tc.expectedRel)
}
}
}
func TestBasicWalkSkipSymlink(t *testing.T) {
_, dir := setup(t)
testWalkSkipSymlink(t, FilesystemTypeBasic, dir)
}
func TestWalkTraverseDirJunct(t *testing.T) {
_, dir := setup(t)
testWalkTraverseDirJunct(t, FilesystemTypeBasic, dir)
}
func TestWalkInfiniteRecursion(t *testing.T) {
_, dir := setup(t)
testWalkInfiniteRecursion(t, FilesystemTypeBasic, dir)
}