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|
package service
import (
"bytes"
"context"
"errors"
"io"
"os"
"path/filepath"
"testing"
)
type mockRemuxer struct {
path string
data string
err error
}
func (m *mockRemuxer) Remux(ctx context.Context, inputPath string, w io.Writer) error {
m.path = inputPath
if m.data != "" {
_, _ = io.WriteString(w, m.data)
}
return m.err
}
func TestMediaStreamerOpenDirect(t *testing.T) {
dir := t.TempDir()
path := filepath.Join(dir, "clip.mp4")
if err := os.WriteFile(path, []byte("mp4"), 0o644); err != nil {
t.Fatal(err)
}
stream, err := NewMediaStreamer(nil, dir).Open(context.Background(), &FileResult{
Path: path,
FileName: "clip.mp4",
}, false)
if err != nil {
t.Fatalf("open stream: %v", err)
}
defer stream.File.Close()
if stream.Remuxed {
t.Fatal("expected direct stream")
}
if stream.ContentType != "video/mp4" {
t.Fatalf("expected video/mp4, got %q", stream.ContentType)
}
if stream.Size != 3 {
t.Fatalf("expected size 3, got %d", stream.Size)
}
}
func TestMediaStreamerOpenAttachmentSkipsRemux(t *testing.T) {
dir := t.TempDir()
path := writeMPEGTSFileInDir(t, dir)
stream, err := NewMediaStreamer(&mockRemuxer{}, dir).Open(context.Background(), &FileResult{
Path: path,
FileName: "clip.ts",
}, true)
if err != nil {
t.Fatalf("open stream: %v", err)
}
defer stream.File.Close()
if stream.Remuxed {
t.Fatal("expected attachment to skip remux")
}
if !stream.Attachment {
t.Fatal("expected attachment flag")
}
}
func TestMediaStreamerOpenRemuxedMPEGTS(t *testing.T) {
dir := t.TempDir()
path := writeMPEGTSFileInDir(t, dir)
stream, err := NewMediaStreamer(&mockRemuxer{}, dir).Open(context.Background(), &FileResult{
Path: path,
FileName: "mislabelled.mp4",
Duration: 42,
}, false)
if err != nil {
t.Fatalf("open stream: %v", err)
}
defer stream.File.Close()
if !stream.Remuxed {
t.Fatal("expected remuxed stream")
}
if stream.ContentType != "video/mp4" {
t.Fatalf("expected video/mp4, got %q", stream.ContentType)
}
if stream.Duration != 42 {
t.Fatalf("expected duration 42, got %f", stream.Duration)
}
}
func TestMediaStreamerRemux(t *testing.T) {
remuxer := &mockRemuxer{data: "remuxed"}
streamer := NewMediaStreamer(remuxer, "")
var out bytes.Buffer
err := streamer.Remux(context.Background(), &StreamResult{Path: "/media/input.ts"}, &out)
if err != nil {
t.Fatalf("remux: %v", err)
}
if remuxer.path != "/media/input.ts" {
t.Fatalf("expected remux path, got %q", remuxer.path)
}
if out.String() != "remuxed" {
t.Fatalf("expected remuxed output, got %q", out.String())
}
}
// writeMPEGTSFileInDir writes a minimal MPEG-TS file into dir and returns its
// path. dir is supplied by the caller so that the same temp directory can be
// used as both the file location and the mediaRoot passed to NewMediaStreamer,
// satisfying the path-traversal check in Open.
func writeMPEGTSFileInDir(t *testing.T, dir string) string {
t.Helper()
ts := make([]byte, 188*5)
for i := 0; i < len(ts); i += 188 {
ts[i] = 0x47
}
path := filepath.Join(dir, "clip.ts")
if err := os.WriteFile(path, ts, 0o644); err != nil {
t.Fatal(err)
}
return path
}
func TestMediaStreamerOpenRejectsPathOutsideRoot(t *testing.T) {
// Write a file outside the designated media root to verify that Open
// returns ErrForbidden rather than serving the file.
outsideDir := t.TempDir()
path := filepath.Join(outsideDir, "secret.mp4")
if err := os.WriteFile(path, []byte("secret"), 0o644); err != nil {
t.Fatal(err)
}
// Use a separate directory as the media root so path is definitely outside.
mediaRoot := t.TempDir()
_, err := NewMediaStreamer(nil, mediaRoot).Open(context.Background(), &FileResult{
Path: path,
FileName: "secret.mp4",
}, false)
if err == nil {
t.Fatal("expected error for path outside media root, got nil")
}
if !errors.Is(err, ErrForbidden) {
t.Fatalf("expected ErrForbidden, got %v", err)
}
}
|
