unarr/internal/engine/debrid_test.go
Deivid Soto 5e80911501 feat(debrid): add HTTPS downloader for debrid direct URLs
DebridDownloader receives directUrl from the server and downloads via
plain HTTPS with progress reporting, resume (Range), and pause/cancel.

- Add DirectURL, DirectFileName to agent Task and engine Task types
- Implement DebridDownloader: HTTPS download with progress, resume, cancel
- HTTP client with 30s ResponseHeaderTimeout
- Safe shortID helper to prevent slice panic on short IDs
- Validate 416 against Content-Range server size for resume integrity
- Register debridDl in daemon and one-shot download command
- Tests: available, download, resume, cancel, pause, fallback filename,
  expired URL (410), unauthorized (401), shutdown, task propagation
2026-03-28 18:09:34 +01:00

419 lines
11 KiB
Go

package engine
import (
"context"
"fmt"
"io"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"strings"
"testing"
"time"
"github.com/torrentclaw/torrentclaw-cli/internal/agent"
)
func TestDebridAvailable(t *testing.T) {
d := NewDebridDownloader()
t.Run("available when DirectURL is set", func(t *testing.T) {
task := &Task{DirectURL: "https://cdn.example.com/file.mkv"}
ok, err := d.Available(context.Background(), task)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if !ok {
t.Error("should be available when DirectURL is set")
}
})
t.Run("not available when DirectURL is empty", func(t *testing.T) {
task := &Task{DirectURL: ""}
ok, err := d.Available(context.Background(), task)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if ok {
t.Error("should not be available when DirectURL is empty")
}
})
}
func TestDebridDownloadSuccess(t *testing.T) {
fileContent := strings.Repeat("x", 1024*100) // 100KB file
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(fileContent)))
w.WriteHeader(http.StatusOK)
w.Write([]byte(fileContent))
}))
defer srv.Close()
d := NewDebridDownloader()
outputDir := t.TempDir()
task := &Task{
ID: "debrid-test-001",
InfoHash: "abc123def456abc123def456abc123def456abc1",
Title: "Test Movie",
DirectURL: srv.URL + "/file.mkv",
DirectFileName: "Test.Movie.2026.1080p.mkv",
Status: StatusDownloading,
}
progressCh := make(chan Progress, 100)
result, err := d.Download(context.Background(), task, outputDir, progressCh)
close(progressCh)
if err != nil {
t.Fatalf("Download failed: %v", err)
}
if result.Method != MethodDebrid {
t.Errorf("Method = %q, want debrid", result.Method)
}
if result.FileName != "Test.Movie.2026.1080p.mkv" {
t.Errorf("FileName = %q, want Test.Movie.2026.1080p.mkv", result.FileName)
}
if result.Size != int64(len(fileContent)) {
t.Errorf("Size = %d, want %d", result.Size, len(fileContent))
}
// Verify file exists on disk
data, err := os.ReadFile(result.FilePath)
if err != nil {
t.Fatalf("read downloaded file: %v", err)
}
if len(data) != len(fileContent) {
t.Errorf("file size = %d, want %d", len(data), len(fileContent))
}
// Verify task progress was updated
if task.DownloadedBytes != int64(len(fileContent)) {
t.Errorf("task.DownloadedBytes = %d, want %d", task.DownloadedBytes, len(fileContent))
}
}
func TestDebridDownloadNoURL(t *testing.T) {
d := NewDebridDownloader()
task := &Task{ID: "no-url-001", DirectURL: ""}
progressCh := make(chan Progress, 10)
_, err := d.Download(context.Background(), task, t.TempDir(), progressCh)
if err == nil {
t.Error("expected error for empty DirectURL")
}
if !strings.Contains(err.Error(), "no direct URL") {
t.Errorf("error = %q, should mention no direct URL", err.Error())
}
}
func TestDebridDownloadHTTPError(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusForbidden)
}))
defer srv.Close()
d := NewDebridDownloader()
task := &Task{
ID: "http-err-001",
DirectURL: srv.URL + "/expired",
DirectFileName: "expired.mkv",
}
progressCh := make(chan Progress, 10)
_, err := d.Download(context.Background(), task, t.TempDir(), progressCh)
if err == nil {
t.Error("expected error for HTTP 403")
}
if !strings.Contains(err.Error(), "403") {
t.Errorf("error = %q, should contain 403", err.Error())
}
}
func TestDebridDownloadExpiredURL(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusGone) // 410 — URL expired
}))
defer srv.Close()
d := NewDebridDownloader()
task := &Task{
ID: "expired-001",
DirectURL: srv.URL + "/expired",
DirectFileName: "expired.mkv",
}
progressCh := make(chan Progress, 10)
_, err := d.Download(context.Background(), task, t.TempDir(), progressCh)
if err == nil {
t.Error("expected error for HTTP 410 (expired URL)")
}
if !strings.Contains(err.Error(), "410") {
t.Errorf("error = %q, should contain 410", err.Error())
}
}
func TestDebridDownloadUnauthorized(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusUnauthorized)
}))
defer srv.Close()
d := NewDebridDownloader()
task := &Task{
ID: "unauth-001",
DirectURL: srv.URL + "/unauth",
DirectFileName: "unauth.mkv",
}
progressCh := make(chan Progress, 10)
_, err := d.Download(context.Background(), task, t.TempDir(), progressCh)
if err == nil {
t.Error("expected error for HTTP 401")
}
if !strings.Contains(err.Error(), "401") {
t.Errorf("error = %q, should contain 401", err.Error())
}
}
func TestDebridDownloadResume(t *testing.T) {
fullContent := "HEADER_ALREADY_DOWNLOADED_REST_OF_FILE"
alreadyDownloaded := "HEADER_ALREADY_DOWNLOADED_"
remaining := "REST_OF_FILE"
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
rangeHeader := r.Header.Get("Range")
if rangeHeader != "" {
// Parse "bytes=26-"
var start int64
fmt.Sscanf(rangeHeader, "bytes=%d-", &start)
if start == int64(len(alreadyDownloaded)) {
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(remaining)))
w.WriteHeader(http.StatusPartialContent)
w.Write([]byte(remaining))
return
}
}
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(fullContent)))
w.WriteHeader(http.StatusOK)
w.Write([]byte(fullContent))
}))
defer srv.Close()
d := NewDebridDownloader()
outputDir := t.TempDir()
fileName := "resume-test.mkv"
// Create partial file
partialPath := filepath.Join(outputDir, fileName)
if err := os.WriteFile(partialPath, []byte(alreadyDownloaded), 0o644); err != nil {
t.Fatalf("write partial file: %v", err)
}
task := &Task{
ID: "resume-001",
DirectURL: srv.URL + "/file.mkv",
DirectFileName: fileName,
Status: StatusDownloading,
}
progressCh := make(chan Progress, 100)
result, err := d.Download(context.Background(), task, outputDir, progressCh)
if err != nil {
t.Fatalf("Download failed: %v", err)
}
// Verify total size includes both parts
if result.Size != int64(len(fullContent)) {
t.Errorf("Size = %d, want %d", result.Size, len(fullContent))
}
// Verify file content
data, err := os.ReadFile(result.FilePath)
if err != nil {
t.Fatalf("read file: %v", err)
}
if string(data) != fullContent {
t.Errorf("file content = %q, want %q", string(data), fullContent)
}
}
func TestDebridDownloadCancel(t *testing.T) {
// Server that sends a chunk then waits
started := make(chan struct{})
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Length", "1000000")
w.WriteHeader(http.StatusOK)
// Write some data so the download starts
w.Write([]byte(strings.Repeat("x", 4096)))
if f, ok := w.(http.Flusher); ok {
f.Flush()
}
close(started)
// Block until client disconnects
<-r.Context().Done()
}))
defer srv.Close()
d := NewDebridDownloader()
task := &Task{
ID: "cancel-001",
DirectURL: srv.URL + "/slow",
DirectFileName: "slow.mkv",
Status: StatusDownloading,
}
progressCh := make(chan Progress, 100)
errCh := make(chan error, 1)
go func() {
_, err := d.Download(context.Background(), task, t.TempDir(), progressCh)
errCh <- err
}()
// Wait for server to confirm download started, then cancel
<-started
d.Cancel("cancel-001")
err := <-errCh
if err == nil {
t.Error("expected error after cancel")
}
}
func TestDebridDownloadPause(t *testing.T) {
// Server that sends a chunk then waits
started := make(chan struct{})
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Length", "1000000")
w.WriteHeader(http.StatusOK)
// Write enough data to create file
w.Write([]byte(strings.Repeat("x", 8192)))
if f, ok := w.(http.Flusher); ok {
f.Flush()
}
close(started)
// Block until client disconnects
<-r.Context().Done()
}))
defer srv.Close()
d := NewDebridDownloader()
outputDir := t.TempDir()
task := &Task{
ID: "pause-001",
DirectURL: srv.URL + "/slow",
DirectFileName: "pauseable.mkv",
Status: StatusDownloading,
}
progressCh := make(chan Progress, 100)
errCh := make(chan error, 1)
go func() {
_, err := d.Download(context.Background(), task, outputDir, progressCh)
errCh <- err
}()
// Wait for server to confirm data was sent, then pause
<-started
time.Sleep(50 * time.Millisecond) // small delay for file write
d.Pause("pause-001")
<-errCh
// Verify partial file exists on disk (pause keeps files)
partialPath := filepath.Join(outputDir, "pauseable.mkv")
fi, err := os.Stat(partialPath)
if err != nil {
t.Fatalf("partial file should exist after pause: %v", err)
}
if fi.Size() == 0 {
t.Error("partial file should have some bytes")
}
}
func TestDebridDownloadFallbackFilename(t *testing.T) {
srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Length", "5")
w.WriteHeader(http.StatusOK)
io.WriteString(w, "hello")
}))
defer srv.Close()
d := NewDebridDownloader()
t.Run("uses Title when DirectFileName is empty", func(t *testing.T) {
task := &Task{
ID: "fallback-001",
Title: "My Movie Title",
DirectURL: srv.URL + "/file",
Status: StatusDownloading,
}
progressCh := make(chan Progress, 10)
result, err := d.Download(context.Background(), task, t.TempDir(), progressCh)
if err != nil {
t.Fatalf("Download failed: %v", err)
}
if result.FileName != "My Movie Title" {
t.Errorf("FileName = %q, want 'My Movie Title'", result.FileName)
}
})
t.Run("uses InfoHash when both are empty", func(t *testing.T) {
task := &Task{
ID: "fallback-002",
InfoHash: "abc123",
DirectURL: srv.URL + "/file",
Status: StatusDownloading,
}
progressCh := make(chan Progress, 10)
result, err := d.Download(context.Background(), task, t.TempDir(), progressCh)
if err != nil {
t.Fatalf("Download failed: %v", err)
}
if result.FileName != "abc123" {
t.Errorf("FileName = %q, want 'abc123'", result.FileName)
}
})
}
func TestDebridShutdown(t *testing.T) {
d := NewDebridDownloader()
err := d.Shutdown(context.Background())
if err != nil {
t.Errorf("Shutdown should not error: %v", err)
}
}
func TestNewTaskFromAgentWithDirectURL(t *testing.T) {
at := agent.Task{
ID: "uuid-debrid",
InfoHash: "abc123def456abc123def456abc123def456abc1",
Title: "Debrid Movie",
PreferredMethod: "debrid",
DirectURL: "https://cdn.torbox.app/dl/abc123/movie.mkv",
DirectFileName: "Movie.2026.1080p.mkv",
}
task := NewTaskFromAgent(at)
if task.DirectURL != "https://cdn.torbox.app/dl/abc123/movie.mkv" {
t.Errorf("DirectURL = %q", task.DirectURL)
}
if task.DirectFileName != "Movie.2026.1080p.mkv" {
t.Errorf("DirectFileName = %q", task.DirectFileName)
}
if task.PreferredMethod != "debrid" {
t.Errorf("PreferredMethod = %q", task.PreferredMethod)
}
}
func TestDebridMethod(t *testing.T) {
d := NewDebridDownloader()
if d.Method() != MethodDebrid {
t.Errorf("Method = %q, want debrid", d.Method())
}
}