package integration_tests import ( "syscall" "crypto/md5" "encoding/hex" "fmt" "io/ioutil" "os" "os/exec" "testing" "github.com/rfjakob/gocryptfs/cryptfs" ) // Note: the code assumes that all have a trailing slash const tmpDir = "/tmp/gocryptfs_main_test/" const defaultPlainDir = tmpDir + "plain/" const defaultCipherDir = tmpDir + "cipher/" const gocryptfsBinary = "../gocryptfs" func resetTmpDir() { fu := exec.Command("fusermount", "-z", "-u", defaultPlainDir) fu.Run() err := os.RemoveAll(tmpDir) if err != nil { fmt.Println(err) os.Exit(1) } err = os.MkdirAll(defaultPlainDir, 0777) if err != nil { fmt.Println(err) os.Exit(1) } err = os.MkdirAll(defaultCipherDir, 0777) if err != nil { fmt.Println(err) os.Exit(1) } err = cryptfs.WriteDirIV(defaultCipherDir) if err != nil { fmt.Println(err) os.Exit(1) } } // mount CIPHERDIR "c" on PLAINDIR "p" func mount(c string, p string, extraArgs ...string) { var args []string args = append(args, extraArgs...) args = append(args, "-q") //args = append(args, "--fusedebug") args = append(args, c) args = append(args, p) cmd := exec.Command(gocryptfsBinary, args...) if testing.Verbose() { cmd.Stdout = os.Stdout cmd.Stderr = os.Stderr } err := cmd.Run() if err != nil { fmt.Println(err) os.Exit(1) } } // unmount PLAINDIR "p" func unmount(p string) error { fu := exec.Command("fusermount", "-u", "-z", p) fu.Stdout = os.Stdout fu.Stderr = os.Stderr err := fu.Run() if err != nil { fmt.Println(err) } return err } // Return md5 string for file "filename" func md5fn(filename string) string { buf, err := ioutil.ReadFile(filename) if err != nil { fmt.Printf("ReadFile: %v\n", err) return "" } return md5hex(buf) } // Return md5 string for "buf" func md5hex(buf []byte) string { rawHash := md5.Sum(buf) hash := hex.EncodeToString(rawHash[:]) return hash } // Verify that the file size equals "want". This checks: // 1) Size reported by Stat() // 2) Number of bytes returned when reading the whole file func verifySize(t *testing.T, path string, want int) { buf, err := ioutil.ReadFile(path) if err != nil { t.Errorf("ReadFile failed: %v", err) } else if len(buf) != want { t.Errorf("wrong read size: got=%d want=%d", len(buf), want) } fi, err := os.Stat(path) if err != nil { t.Errorf("Stat failed: %v", err) } else if fi.Size() != int64(want) { t.Errorf("wrong stat file size, got=%d want=%d", fi.Size(), want) } } // Create and delete a directory func testMkdirRmdir(t *testing.T, plainDir string) { dir := plainDir + "dir1" err := os.Mkdir(dir, 0777) if err != nil { t.Fatal(err) } err = syscall.Rmdir(dir) if err != nil { t.Fatal(err) } // Removing a non-empty dir should fail with ENOTEMPTY if os.Mkdir(dir, 0777) != nil { t.Fatal(err) } f, err := os.Create(dir + "/file") if err != nil { t.Fatal(err) } f.Close() err = syscall.Rmdir(dir) errno := err.(syscall.Errno) if errno != syscall.ENOTEMPTY { t.Errorf("Should have gotten ENOTEMPTY, go %v", errno) } if syscall.Unlink(dir + "/file") != nil { t.Fatal(err) } if syscall.Rmdir(dir) != nil { t.Fatal(err) } // We should also be able to remove a directory we do not have permissions to // read or write err = os.Mkdir(dir, 0000) if err != nil { t.Fatal(err) } err = syscall.Rmdir(dir) if err != nil { t.Fatal(err) } } // Create and rename a file func testRename(t *testing.T, plainDir string) { file1 := plainDir+"rename1" file2 := plainDir+"rename2" err := ioutil.WriteFile(file1, []byte("content"), 0777) if err != nil { t.Fatal(err) } err = syscall.Rename(file1, file2) if err != nil { t.Fatal(err) } syscall.Unlink(file2) }