This commit is contained in:
afkarxyz
2026-01-27 06:16:05 +07:00
parent e04f6e4fdd
commit 25233349b9
38 changed files with 2492 additions and 1682 deletions
+59 -444
View File
@@ -1,15 +1,11 @@
package backend
import (
"bytes"
"crypto/tls"
"encoding/base64"
"encoding/json"
"fmt"
"io"
"math/rand"
"net/http"
"net/http/cookiejar"
"net/url"
"os"
"path/filepath"
@@ -19,11 +15,8 @@ import (
)
type AmazonDownloader struct {
client *http.Client
regions []string
lastAPICallTime time.Time
apiCallCount int
apiCallResetTime time.Time
client *http.Client
regions []string
}
type SongLinkResponse struct {
@@ -32,35 +25,13 @@ type SongLinkResponse struct {
} `json:"linksByPlatform"`
}
type DoubleDoubleSubmitResponse struct {
Success bool `json:"success"`
ID string `json:"id"`
}
type DoubleDoubleStatusResponse struct {
Status string `json:"status"`
FriendlyStatus string `json:"friendlyStatus"`
URL string `json:"url"`
Current struct {
Name string `json:"name"`
Artist string `json:"artist"`
} `json:"current"`
}
type LucidaLoadResponse struct {
Success bool `json:"success"`
Server string `json:"server"`
Handoff string `json:"handoff"`
Error string `json:"error"`
}
type LucidaStatusResponse struct {
Status string `json:"status"`
Message string `json:"message"`
Progress struct {
Current int64 `json:"current"`
Total int64 `json:"total"`
} `json:"progress"`
type AfkarXYZResponse struct {
Success bool `json:"success"`
Data struct {
DirectLink string `json:"direct_link"`
FileName string `json:"file_name"`
FileSize int64 `json:"file_size"`
} `json:"data"`
}
func NewAmazonDownloader() *AmazonDownloader {
@@ -68,93 +39,35 @@ func NewAmazonDownloader() *AmazonDownloader {
client: &http.Client{
Timeout: 120 * time.Second,
},
regions: []string{"us", "eu"},
apiCallResetTime: time.Now(),
regions: []string{"us", "eu"},
}
}
func (a *AmazonDownloader) getRandomUserAgent() string {
return fmt.Sprintf("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_%d_%d) AppleWebKit/%d.%d (KHTML, like Gecko) Chrome/%d.0.%d.%d Safari/%d.%d",
rand.Intn(4)+11, rand.Intn(5)+4,
rand.Intn(7)+530, rand.Intn(7)+30,
rand.Intn(25)+80, rand.Intn(1500)+3000, rand.Intn(65)+60,
rand.Intn(7)+530, rand.Intn(6)+30)
}
func (a *AmazonDownloader) GetAmazonURLFromSpotify(spotifyTrackID string) (string, error) {
now := time.Now()
if now.Sub(a.apiCallResetTime) >= time.Minute {
a.apiCallCount = 0
a.apiCallResetTime = now
}
spotifyBase := "https://open.spotify.com/track/"
spotifyURL := fmt.Sprintf("%s%s", spotifyBase, spotifyTrackID)
if a.apiCallCount >= 9 {
waitTime := time.Minute - now.Sub(a.apiCallResetTime)
if waitTime > 0 {
fmt.Printf("Rate limit reached, waiting %v...\n", waitTime.Round(time.Second))
time.Sleep(waitTime)
a.apiCallCount = 0
a.apiCallResetTime = time.Now()
}
}
if !a.lastAPICallTime.IsZero() {
timeSinceLastCall := now.Sub(a.lastAPICallTime)
minDelay := 7 * time.Second
if timeSinceLastCall < minDelay {
waitTime := minDelay - timeSinceLastCall
fmt.Printf("Rate limiting: waiting %v...\n", waitTime.Round(time.Second))
time.Sleep(waitTime)
}
}
spotifyBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9vcGVuLnNwb3RpZnkuY29tL3RyYWNrLw==")
spotifyURL := fmt.Sprintf("%s%s", string(spotifyBase), spotifyTrackID)
apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9hcGkuc29uZy5saW5rL3YxLWFscGhhLjEvbGlua3M/dXJsPQ==")
apiURL := fmt.Sprintf("%s%s", string(apiBase), url.QueryEscape(spotifyURL))
apiBase := "https://api.song.link/v1-alpha.1/links?url="
apiURL := fmt.Sprintf("%s%s", apiBase, url.QueryEscape(spotifyURL))
req, err := http.NewRequest("GET", apiURL, nil)
if err != nil {
return "", fmt.Errorf("failed to create request: %w", err)
}
req.Header.Set("User-Agent", a.getRandomUserAgent())
fmt.Println("Getting Amazon URL...")
maxRetries := 3
var resp *http.Response
for i := 0; i < maxRetries; i++ {
resp, err = a.client.Do(req)
if err != nil {
return "", fmt.Errorf("failed to get Amazon URL: %w", err)
}
a.lastAPICallTime = time.Now()
a.apiCallCount++
if resp.StatusCode == 429 {
resp.Body.Close()
if i < maxRetries-1 {
waitTime := 15 * time.Second
fmt.Printf("Rate limited by API, waiting %v before retry...\n", waitTime)
time.Sleep(waitTime)
continue
}
return "", fmt.Errorf("API rate limit exceeded after %d retries", maxRetries)
}
if resp.StatusCode != 200 {
resp.Body.Close()
return "", fmt.Errorf("API returned status %d", resp.StatusCode)
}
break
resp, err := a.client.Do(req)
if err != nil {
return "", fmt.Errorf("failed to get Amazon URL: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return "", fmt.Errorf("API returned status %d", resp.StatusCode)
}
body, err := io.ReadAll(resp.Body)
if err != nil {
return "", fmt.Errorf("failed to read response body: %w", err)
@@ -194,177 +107,65 @@ func (a *AmazonDownloader) GetAmazonURLFromSpotify(spotifyTrackID string) (strin
return amazonURL, nil
}
func (a *AmazonDownloader) extractData(html string, patterns []string) string {
for _, p := range patterns {
re := regexp.MustCompile(p)
matches := re.FindStringSubmatch(html)
if len(matches) > 1 {
return matches[1]
}
}
return ""
}
func (a *AmazonDownloader) DownloadFromLucida(amazonURL, outputDir, quality string) (string, error) {
tr := &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
jar, _ := cookiejar.New(nil)
client := &http.Client{
Transport: tr,
Jar: jar,
Timeout: 120 * time.Second,
}
userAgent := a.getRandomUserAgent()
fmt.Printf("Initializing lucida for Amazon Music... (Target: %s)\n", amazonURL)
lucidaBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9sdWNpZGEudG8vP3VybD0lcyZjb3VudHJ5PWF1dG8=")
lucidaURL := fmt.Sprintf(string(lucidaBase), url.QueryEscape(amazonURL))
req, _ := http.NewRequest("GET", lucidaURL, nil)
req.Header.Set("User-Agent", userAgent)
resp, err := client.Do(req)
func (a *AmazonDownloader) DownloadFromAfkarXYZ(amazonURL, outputDir, quality string) (string, error) {
apiURL := "https://amazon.afkarxyz.fun/convert?url=" + url.QueryEscape(amazonURL)
req, err := http.NewRequest("GET", apiURL, nil)
if err != nil {
return "", err
}
defer resp.Body.Close()
bodyBytes, _ := io.ReadAll(resp.Body)
html := string(bodyBytes)
token := a.extractData(html, []string{`token:"([^"]+)"`, `"token"\s*:\s*"([^"]+)"`})
streamURL := a.extractData(html, []string{`"url":"([^"]+)"`, `url:"([^"]+)"`})
expiry := a.extractData(html, []string{`tokenExpiry:(\d+)`, `"tokenExpiry"\s*:\s*(\d+)`})
if token == "" || streamURL == "" {
errorMsg := a.extractData(html, []string{`error:"([^"]+)"`, `"error"\s*:\s*"([^"]+)"`})
if errorMsg != "" {
return "", fmt.Errorf("lucida error: %s", errorMsg)
}
return "", fmt.Errorf("could not extract required data from lucida")
}
decodedToken := token
if secondBase64, err := base64.StdEncoding.DecodeString(token); err == nil {
if firstBase64, err := base64.StdEncoding.DecodeString(string(secondBase64)); err == nil {
decodedToken = string(firstBase64)
}
}
streamURL = strings.ReplaceAll(streamURL, `\/`, `/`)
fmt.Printf("Fetching Amazon stream via Lucida...\n")
loadPayload := map[string]interface{}{
"account": map[string]string{"id": "auto", "type": "country"},
"compat": "false", "downscale": "original", "handoff": true,
"metadata": true, "private": true,
"token": map[string]interface{}{"primary": decodedToken, "expiry": expiry},
"upload": map[string]bool{"enabled": false},
"url": streamURL,
}
payloadBytes, _ := json.Marshal(loadPayload)
loadAPI, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9sdWNpZGEudG8vYXBpL2xvYWQ/dXJsPS9hcGkvZmV0Y2gvc3RyZWFtL3Yy")
req, _ = http.NewRequest("POST", string(loadAPI), bytes.NewBuffer(payloadBytes))
req.Header.Set("User-Agent", userAgent)
req.Header.Set("Content-Type", "application/json")
for _, cookie := range client.Jar.Cookies(req.URL) {
if cookie.Name == "csrf_token" {
req.Header.Set("X-CSRF-Token", cookie.Value)
}
}
resp, err = client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
var loadData LucidaLoadResponse
json.NewDecoder(resp.Body).Decode(&loadData)
if !loadData.Success {
return "", fmt.Errorf("lucida load request failed: %s", loadData.Error)
}
serviceBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly8=")
completionBase, _ := base64.StdEncoding.DecodeString("Lmx1Y2lkYS50by9hcGkvZmV0Y2gvcmVxdWVzdC8=")
completionURL := fmt.Sprintf("%s%s%s%s", string(serviceBase), loadData.Server, string(completionBase), loadData.Handoff)
fmt.Println("Processing on Lucida server...")
var finalStatus LucidaStatusResponse
for {
req, _ = http.NewRequest("GET", completionURL, nil)
req.Header.Set("User-Agent", userAgent)
resp, err = client.Do(req)
if err != nil {
return "", err
}
json.NewDecoder(resp.Body).Decode(&finalStatus)
resp.Body.Close()
if finalStatus.Status == "completed" {
fmt.Println("\nTrack processing completed!")
break
} else if finalStatus.Status == "error" {
return "", fmt.Errorf("lucida processing failed: %s", finalStatus.Message)
} else if finalStatus.Progress.Total > 0 {
percent := (finalStatus.Progress.Current * 100) / finalStatus.Progress.Total
fmt.Printf("\rLucida Progress: %d%%", percent)
}
time.Sleep(2 * time.Second)
}
downloadSuffix, _ := base64.StdEncoding.DecodeString("L2Rvd25sb2Fk")
downloadURL := fmt.Sprintf("%s%s%s%s%s", string(serviceBase), loadData.Server, string(completionBase), loadData.Handoff, string(downloadSuffix))
req, _ = http.NewRequest("GET", downloadURL, nil)
req.Header.Set("User-Agent", userAgent)
resp, err = client.Do(req)
fmt.Printf("Fetching from AfkarXYZ...\n")
resp, err := a.client.Do(req)
if err != nil {
return "", err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
return "", fmt.Errorf("lucida download failed with status %d", resp.StatusCode)
return "", fmt.Errorf("AfkarXYZ API returned status %d", resp.StatusCode)
}
fileName := "track.flac"
contentDisp := resp.Header.Get("Content-Disposition")
if contentDisp != "" {
re := regexp.MustCompile(`filename[*]?=([^;]+)`)
if matches := re.FindStringSubmatch(contentDisp); len(matches) > 1 {
rawName := strings.Trim(matches[1], `"'`)
if strings.HasPrefix(rawName, "UTF-8''") {
decodedName, _ := url.PathUnescape(rawName[7:])
fileName = decodedName
} else {
fileName = rawName
}
reg := regexp.MustCompile(`[<>:"/\\|?*]`)
fileName = reg.ReplaceAllString(fileName, "")
}
bodyBytes, _ := io.ReadAll(resp.Body)
var apiResp AfkarXYZResponse
if err := json.Unmarshal(bodyBytes, &apiResp); err != nil {
return "", fmt.Errorf("failed to decode response: %w", err)
}
if !apiResp.Success || apiResp.Data.DirectLink == "" {
return "", fmt.Errorf("AfkarXYZ failed or no link found")
}
downloadURL := apiResp.Data.DirectLink
fileName := apiResp.Data.FileName
if fileName == "" {
fileName = "track.flac"
}
reg := regexp.MustCompile(`[<>:"/\\|?*]`)
fileName = reg.ReplaceAllString(fileName, "")
filePath := filepath.Join(outputDir, fileName)
out, err := os.Create(filePath)
if err != nil {
return "", err
}
defer out.Close()
fmt.Printf("Downloading from Lucida: %s\n", fileName)
dlReq, _ := http.NewRequest("GET", downloadURL, nil)
dlResp, err := a.client.Do(dlReq)
if err != nil {
return "", err
}
defer dlResp.Body.Close()
fmt.Printf("Downloading from AfkarXYZ: %s\n", fileName)
pw := NewProgressWriter(out)
_, err = io.Copy(pw, resp.Body)
_, err = io.Copy(pw, dlResp.Body)
if err != nil {
out.Close()
os.Remove(filePath)
return "", fmt.Errorf("failed to write file: %w", err)
return "", err
}
fmt.Printf("\rDownloaded: %.2f MB (Complete)\n", float64(pw.GetTotal())/(1024*1024))
@@ -372,196 +173,10 @@ func (a *AmazonDownloader) DownloadFromLucida(amazonURL, outputDir, quality stri
}
func (a *AmazonDownloader) DownloadFromService(amazonURL, outputDir, quality string) (string, error) {
fmt.Println("Attempting download via Lucida (Priority)...")
filePath, err := a.DownloadFromLucida(amazonURL, outputDir, quality)
if err == nil {
return filePath, nil
}
fmt.Printf("Lucida failed: %v\nTrying Double-Double as fallback...\n", err)
var lastError error
lastError = err
for _, region := range a.regions {
fmt.Printf("\nTrying region: %s...\n", region)
serviceBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly8=")
serviceDomain, _ := base64.StdEncoding.DecodeString("LmRvdWJsZWRvdWJsZS50b3A=")
baseURL := fmt.Sprintf("%s%s%s", string(serviceBase), region, string(serviceDomain))
encodedURL := url.QueryEscape(amazonURL)
submitURL := fmt.Sprintf("%s/dl?url=%s", baseURL, encodedURL)
req, err := http.NewRequest("GET", submitURL, nil)
if err != nil {
lastError = fmt.Errorf("failed to create request: %w", err)
continue
}
req.Header.Set("User-Agent", a.getRandomUserAgent())
fmt.Println("Submitting download request...")
resp, err := a.client.Do(req)
if err != nil {
lastError = fmt.Errorf("failed to submit request: %w", err)
continue
}
if resp.StatusCode != 200 {
resp.Body.Close()
lastError = fmt.Errorf("submit failed with status %d", resp.StatusCode)
continue
}
var submitResp DoubleDoubleSubmitResponse
if err := json.NewDecoder(resp.Body).Decode(&submitResp); err != nil {
resp.Body.Close()
lastError = fmt.Errorf("failed to decode submit response: %w", err)
continue
}
resp.Body.Close()
if !submitResp.Success || submitResp.ID == "" {
lastError = fmt.Errorf("submit request failed")
continue
}
downloadID := submitResp.ID
fmt.Printf("Download ID: %s\n", downloadID)
statusURL := fmt.Sprintf("%s/dl/%s", baseURL, downloadID)
fmt.Println("Waiting for download to complete...")
maxWait := 300 * time.Second
elapsed := time.Duration(0)
pollInterval := 3 * time.Second
for elapsed < maxWait {
time.Sleep(pollInterval)
elapsed += pollInterval
statusReq, err := http.NewRequest("GET", statusURL, nil)
if err != nil {
continue
}
statusReq.Header.Set("User-Agent", a.getRandomUserAgent())
statusResp, err := a.client.Do(statusReq)
if err != nil {
fmt.Printf("\rStatus check failed, retrying...")
continue
}
if statusResp.StatusCode != 200 {
statusResp.Body.Close()
fmt.Printf("\rStatus check failed (status %d), retrying...", statusResp.StatusCode)
continue
}
var status DoubleDoubleStatusResponse
if err := json.NewDecoder(statusResp.Body).Decode(&status); err != nil {
statusResp.Body.Close()
fmt.Printf("\rInvalid JSON response, retrying...")
continue
}
statusResp.Body.Close()
if status.Status == "done" {
fmt.Println("\nDownload ready!")
fileURL := status.URL
if strings.HasPrefix(fileURL, "./") {
fileURL = fmt.Sprintf("%s/%s", baseURL, fileURL[2:])
} else if strings.HasPrefix(fileURL, "/") {
fileURL = fmt.Sprintf("%s%s", baseURL, fileURL)
}
trackName := status.Current.Name
artist := status.Current.Artist
fmt.Printf("Downloading: %s - %s\n", artist, trackName)
downloadReq, err := http.NewRequest("GET", fileURL, nil)
if err != nil {
lastError = fmt.Errorf("failed to create download request: %w", err)
break
}
downloadReq.Header.Set("User-Agent", a.getRandomUserAgent())
fileResp, err := a.client.Do(downloadReq)
if err != nil {
lastError = fmt.Errorf("failed to download file: %w", err)
break
}
defer fileResp.Body.Close()
if fileResp.StatusCode != 200 {
lastError = fmt.Errorf("download failed with status %d", fileResp.StatusCode)
break
}
fileName := fmt.Sprintf("%s - %s.flac", artist, trackName)
for _, char := range `<>:"/\|?*` {
fileName = strings.ReplaceAll(fileName, string(char), "")
}
fileName = strings.TrimSpace(fileName)
filePath := filepath.Join(outputDir, fileName)
out, err := os.Create(filePath)
if err != nil {
lastError = fmt.Errorf("failed to create file: %w", err)
break
}
defer out.Close()
fmt.Println("Downloading...")
pw := NewProgressWriter(out)
_, err = io.Copy(pw, fileResp.Body)
if err != nil {
out.Close()
return "", fmt.Errorf("failed to write file: %w", err)
}
fmt.Printf("\rDownloaded: %.2f MB (Complete)\n", float64(pw.GetTotal())/(1024*1024))
fmt.Println("Download complete!")
return filePath, nil
} else if status.Status == "error" {
errorMsg := status.FriendlyStatus
if errorMsg == "" {
errorMsg = "Unknown error"
}
lastError = fmt.Errorf("processing failed: %s", errorMsg)
break
} else {
friendlyStatus := status.FriendlyStatus
if friendlyStatus == "" {
friendlyStatus = status.Status
}
fmt.Printf("\r%s...", friendlyStatus)
}
}
if elapsed >= maxWait {
lastError = fmt.Errorf("download timeout")
fmt.Printf("\nError with %s region: %v\n", region, lastError)
continue
}
if lastError != nil {
fmt.Printf("\nError with %s region: %v\n", region, lastError)
}
}
return "", fmt.Errorf("all regions failed. Last error: %v", lastError)
return a.DownloadFromAfkarXYZ(amazonURL, outputDir, quality)
}
func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, quality, filenameFormat string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string) (string, error) {
func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, quality, filenameFormat, playlistName, playlistOwner string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string) (string, error) {
if outputDir != "." {
if err := os.MkdirAll(outputDir, 0755); err != nil {
@@ -570,7 +185,7 @@ func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, quality, filename
}
if spotifyTrackName != "" && spotifyArtistName != "" {
expectedFilename := BuildExpectedFilename(spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, filenameFormat, includeTrackNumber, position, spotifyDiscNumber, false)
expectedFilename := BuildExpectedFilename(spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, filenameFormat, playlistName, playlistOwner, includeTrackNumber, position, spotifyDiscNumber, false)
expectedPath := filepath.Join(outputDir, expectedFilename)
if fileInfo, err := os.Stat(expectedPath); err == nil && fileInfo.Size() > 0 {
@@ -696,12 +311,12 @@ func (a *AmazonDownloader) DownloadByURL(amazonURL, outputDir, quality, filename
return filePath, nil
}
func (a *AmazonDownloader) DownloadBySpotifyID(spotifyTrackID, outputDir, quality, filenameFormat string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string) (string, error) {
func (a *AmazonDownloader) DownloadBySpotifyID(spotifyTrackID, outputDir, quality, filenameFormat, playlistName, playlistOwner string, includeTrackNumber bool, position int, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL string, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks int, embedMaxQualityCover bool, spotifyTotalDiscs int, spotifyCopyright, spotifyPublisher, spotifyURL string) (string, error) {
amazonURL, err := a.GetAmazonURLFromSpotify(spotifyTrackID)
if err != nil {
return "", err
}
return a.DownloadByURL(amazonURL, outputDir, quality, filenameFormat, includeTrackNumber, position, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks, embedMaxQualityCover, spotifyTotalDiscs, spotifyCopyright, spotifyPublisher, spotifyURL)
return a.DownloadByURL(amazonURL, outputDir, quality, filenameFormat, playlistName, playlistOwner, includeTrackNumber, position, spotifyTrackName, spotifyArtistName, spotifyAlbumName, spotifyAlbumArtist, spotifyReleaseDate, spotifyCoverURL, spotifyTrackNumber, spotifyDiscNumber, spotifyTotalTracks, embedMaxQualityCover, spotifyTotalDiscs, spotifyCopyright, spotifyPublisher, spotifyURL)
}