mirror of
https://git.maid.zone/stuff/soundcloak.git
synced 2025-12-10 05:39:38 +05:00
422 lines
9.1 KiB
Go
422 lines
9.1 KiB
Go
package sc
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"net/url"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/maid-zone/soundcloak/lib/cfg"
|
|
"github.com/segmentio/encoding/json"
|
|
"github.com/valyala/fasthttp"
|
|
)
|
|
|
|
// Functions/structures related to tracks
|
|
|
|
var ErrIncompatibleStream = errors.New("incompatible stream")
|
|
var ErrNoURL = errors.New("no url")
|
|
|
|
var tracksCache = map[string]cached[Track]{}
|
|
var tracksCacheLock = &sync.RWMutex{}
|
|
|
|
type Track struct {
|
|
Artwork string `json:"artwork_url"`
|
|
Comments int `json:"comment_count"`
|
|
CreatedAt string `json:"created_at"`
|
|
Description string `json:"description"`
|
|
//Duration int `json:"duration"` // there are duration and full_duration fields wtf does that mean
|
|
Genre string `json:"genre"`
|
|
Kind string `json:"kind"` // should always be "track"!
|
|
LastModified string `json:"last_modified"`
|
|
License string `json:"license"`
|
|
Likes int64 `json:"likes_count"`
|
|
Permalink string `json:"permalink"`
|
|
Played int64 `json:"playback_count"`
|
|
Reposted int64 `json:"reposts_count"`
|
|
TagList string `json:"tag_list"`
|
|
Title string `json:"title"`
|
|
ID string `json:"urn"`
|
|
Media Media `json:"media"`
|
|
Authorization string `json:"track_authorization"`
|
|
Author User `json:"user"`
|
|
Policy TrackPolicy `json:"policy"`
|
|
|
|
IDint int64 `json:"id"`
|
|
}
|
|
|
|
type TrackPolicy string
|
|
|
|
const (
|
|
PolicyBlock TrackPolicy = "BLOCK"
|
|
)
|
|
|
|
type Protocol string
|
|
|
|
const (
|
|
ProtocolHLS Protocol = "hls"
|
|
ProtocolProgressive Protocol = "progressive"
|
|
)
|
|
|
|
type Format struct {
|
|
Protocol Protocol `json:"protocol"`
|
|
MimeType string `json:"mime_type"`
|
|
}
|
|
|
|
type Transcoding struct {
|
|
URL string `json:"url"`
|
|
Preset string `json:"preset"`
|
|
Format Format `json:"format"`
|
|
Quality string `json:"quality"`
|
|
}
|
|
|
|
type Media struct {
|
|
Transcodings []Transcoding `json:"transcodings"`
|
|
}
|
|
|
|
type Stream struct {
|
|
URL string `json:"url"`
|
|
}
|
|
|
|
func (m Media) SelectCompatible() *Transcoding {
|
|
for _, t := range m.Transcodings {
|
|
if t.Format.Protocol == ProtocolHLS && t.Format.MimeType == "audio/mpeg" {
|
|
return &t
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func GetTrack(prefs cfg.Preferences, permalink string) (Track, error) {
|
|
tracksCacheLock.RLock()
|
|
if cell, ok := tracksCache[permalink]; ok && cell.Expires.After(time.Now()) {
|
|
tracksCacheLock.RUnlock()
|
|
return cell.Value, nil
|
|
}
|
|
tracksCacheLock.RUnlock()
|
|
|
|
var t Track
|
|
err := Resolve(permalink, &t)
|
|
if err != nil {
|
|
return t, err
|
|
}
|
|
|
|
if t.Kind != "track" {
|
|
return t, ErrKindNotCorrect
|
|
}
|
|
|
|
t.Fix(prefs, true)
|
|
|
|
tracksCacheLock.Lock()
|
|
tracksCache[permalink] = cached[Track]{Value: t, Expires: time.Now().Add(cfg.TrackTTL)}
|
|
tracksCacheLock.Unlock()
|
|
|
|
return t, nil
|
|
}
|
|
|
|
// Currently supports:
|
|
// http/https links:
|
|
// - api.soundcloud.com/tracks/<id> (api-v2 subdomain also supported)
|
|
// - soundcloud.com/<user>/<track>
|
|
//
|
|
// plain permalink/id:
|
|
// - <user>/<track>
|
|
// - <id>
|
|
func GetArbitraryTrack(prefs cfg.Preferences, data string) (Track, error) {
|
|
if len(data) > 8 && (data[:8] == "https://" || data[:7] == "http://") {
|
|
u, err := url.Parse(data)
|
|
if err == nil {
|
|
if (u.Host == "api.soundcloud.com" || u.Host == "api-v2.soundcloud.com") && len(u.Path) > 8 && u.Path[:8] == "/tracks/" {
|
|
return GetTrackByID(prefs, u.Path[8:])
|
|
}
|
|
|
|
if u.Host == "soundcloud.com" {
|
|
if len(u.Path) < 4 {
|
|
return Track{}, ErrNoURL
|
|
}
|
|
|
|
u.Path = u.Path[1:]
|
|
if u.Path[len(u.Path)-1] == '/' {
|
|
u.Path = u.Path[:len(u.Path)-1]
|
|
}
|
|
|
|
var n uint = 0
|
|
for _, c := range u.Path {
|
|
if c == '/' {
|
|
n++
|
|
}
|
|
|
|
if n == 2 {
|
|
return Track{}, ErrKindNotCorrect
|
|
}
|
|
}
|
|
|
|
if n != 1 {
|
|
return Track{}, ErrKindNotCorrect
|
|
}
|
|
|
|
return GetTrack(prefs, u.Path)
|
|
}
|
|
} else {
|
|
return Track{}, err
|
|
}
|
|
}
|
|
|
|
valid := true
|
|
for _, n := range data {
|
|
if n < '0' || n > '9' {
|
|
valid = false
|
|
break
|
|
}
|
|
}
|
|
|
|
if valid {
|
|
return GetTrackByID(prefs, data)
|
|
}
|
|
|
|
// this part should be at the end since it manipulates data
|
|
if len(data) < 4 {
|
|
return Track{}, ErrNoURL
|
|
}
|
|
|
|
if data[0] == '/' {
|
|
data = data[1:]
|
|
}
|
|
|
|
if data[len(data)-1] == '/' {
|
|
data = data[:len(data)-1]
|
|
}
|
|
var n uint = 0
|
|
for _, c := range data {
|
|
if c == '/' {
|
|
n++
|
|
}
|
|
}
|
|
|
|
if n == 1 {
|
|
return GetTrack(prefs, data)
|
|
}
|
|
|
|
// failed to find a data point
|
|
return Track{}, ErrKindNotCorrect
|
|
}
|
|
|
|
func SearchTracks(prefs cfg.Preferences, args string) (*Paginated[*Track], error) {
|
|
cid, err := GetClientID()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
p := Paginated[*Track]{Next: "https://" + api + "/search/tracks" + args + "&client_id=" + cid}
|
|
err = p.Proceed(true)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, t := range p.Collection {
|
|
t.Fix(prefs, false)
|
|
}
|
|
|
|
return &p, nil
|
|
}
|
|
|
|
func GetTracks(prefs cfg.Preferences, ids string) ([]*Track, error) {
|
|
cid, err := GetClientID()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
req := fasthttp.AcquireRequest()
|
|
defer fasthttp.ReleaseRequest(req)
|
|
|
|
req.SetRequestURI("https://" + api + "/tracks?ids=" + ids + "&client_id=" + cid)
|
|
req.Header.Set("User-Agent", cfg.UserAgent)
|
|
req.Header.Set("Accept-Encoding", "gzip, deflate, br, zstd")
|
|
|
|
resp := fasthttp.AcquireResponse()
|
|
defer fasthttp.ReleaseResponse(resp)
|
|
|
|
err = DoWithRetry(httpc, req, resp)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
data, err := resp.BodyUncompressed()
|
|
if err != nil {
|
|
data = resp.Body()
|
|
}
|
|
|
|
var res []*Track
|
|
err = json.Unmarshal(data, &res)
|
|
for _, t := range res {
|
|
t.Fix(prefs, false)
|
|
}
|
|
return res, err
|
|
}
|
|
|
|
func (tr Transcoding) GetStream(prefs cfg.Preferences, authorization string) (string, error) {
|
|
cid, err := GetClientID()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
req := fasthttp.AcquireRequest()
|
|
defer fasthttp.ReleaseRequest(req)
|
|
|
|
req.SetRequestURI(tr.URL + "?client_id=" + cid + "&track_authorization=" + authorization)
|
|
req.Header.Set("User-Agent", cfg.UserAgent)
|
|
req.Header.Set("Accept-Encoding", "gzip, deflate, br, zstd")
|
|
|
|
resp := fasthttp.AcquireResponse()
|
|
defer fasthttp.ReleaseResponse(resp)
|
|
|
|
err = DoWithRetry(httpc, req, resp)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if resp.StatusCode() != 200 {
|
|
return "", fmt.Errorf("getstream: got status code %d", resp.StatusCode())
|
|
}
|
|
|
|
data, err := resp.BodyUncompressed()
|
|
if err != nil {
|
|
data = resp.Body()
|
|
}
|
|
|
|
var s Stream
|
|
err = json.Unmarshal(data, &s)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if s.URL == "" {
|
|
return "", ErrNoURL
|
|
}
|
|
|
|
if cfg.ProxyStreams && *prefs.ProxyStreams && *prefs.Player == cfg.HLSPlayer {
|
|
return "/_/proxy/streams/playlist?url=" + url.QueryEscape(s.URL), nil
|
|
}
|
|
|
|
return s.URL, nil
|
|
}
|
|
|
|
func (t *Track) Fix(prefs cfg.Preferences, large bool) {
|
|
if large {
|
|
t.Artwork = strings.Replace(t.Artwork, "-large.", "-t500x500.", 1)
|
|
} else {
|
|
t.Artwork = strings.Replace(t.Artwork, "-large.", "-t200x200.", 1)
|
|
}
|
|
|
|
if t.ID == "" {
|
|
t.ID = strconv.FormatInt(t.IDint, 10)
|
|
} else {
|
|
ls := strings.Split(t.ID, ":")
|
|
t.ID = ls[len(ls)-1]
|
|
}
|
|
|
|
if cfg.ProxyImages && *prefs.ProxyImages && t.Artwork != "" {
|
|
t.Artwork = "/_/proxy/images?url=" + url.QueryEscape(t.Artwork)
|
|
}
|
|
|
|
t.Author.Fix(prefs, false)
|
|
}
|
|
|
|
func (t Track) FormatDescription() string {
|
|
desc := t.Description
|
|
if t.Description != "" {
|
|
desc += "\n\n"
|
|
}
|
|
|
|
desc += strconv.FormatInt(t.Likes, 10) + " ❤️ | " + strconv.FormatInt(t.Played, 10) + " ▶️ | " + strconv.FormatInt(t.Reposted, 10) + " 🔁"
|
|
if t.Genre != "" {
|
|
desc += "\nGenre: " + t.Genre
|
|
}
|
|
desc += "\nCreated: " + t.CreatedAt
|
|
desc += "\nLast modified: " + t.LastModified
|
|
if len(t.TagList) != 0 {
|
|
desc += "\nTags: " + strings.Join(TagListParser(t.TagList), ", ")
|
|
}
|
|
|
|
return desc
|
|
}
|
|
|
|
func GetTrackByID(prefs cfg.Preferences, id string) (Track, error) {
|
|
cid, err := GetClientID()
|
|
if err != nil {
|
|
return Track{}, err
|
|
}
|
|
|
|
tracksCacheLock.RLock()
|
|
for _, cell := range tracksCache {
|
|
if cell.Value.ID == id && cell.Expires.After(time.Now()) {
|
|
tracksCacheLock.RUnlock()
|
|
return cell.Value, nil
|
|
}
|
|
}
|
|
tracksCacheLock.RUnlock()
|
|
|
|
var t Track
|
|
req := fasthttp.AcquireRequest()
|
|
defer fasthttp.ReleaseRequest(req)
|
|
|
|
req.SetRequestURI("https://" + api + "/tracks/" + id + "?client_id=" + cid)
|
|
req.Header.Set("User-Agent", cfg.UserAgent)
|
|
req.Header.Set("Accept-Encoding", "gzip, deflate, br, zstd")
|
|
|
|
resp := fasthttp.AcquireResponse()
|
|
defer fasthttp.ReleaseResponse(resp)
|
|
|
|
err = DoWithRetry(httpc, req, resp)
|
|
if err != nil {
|
|
return t, err
|
|
}
|
|
|
|
data, err := resp.BodyUncompressed()
|
|
if err != nil {
|
|
data = resp.Body()
|
|
}
|
|
|
|
err = json.Unmarshal(data, &t)
|
|
if err != nil {
|
|
return t, err
|
|
}
|
|
|
|
if t.Kind != "track" {
|
|
return t, ErrKindNotCorrect
|
|
}
|
|
|
|
t.Fix(prefs, true)
|
|
|
|
tracksCacheLock.Lock()
|
|
tracksCache[t.Author.Permalink+"/"+t.Permalink] = cached[Track]{Value: t, Expires: time.Now().Add(cfg.TrackTTL)}
|
|
tracksCacheLock.Unlock()
|
|
|
|
return t, nil
|
|
}
|
|
|
|
func GetFeaturedTracks(prefs cfg.Preferences, args string) (*Paginated[*Track], error) {
|
|
cid, err := GetClientID()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
p := Paginated[*Track]{Next: "https://" + api + "/featured_tracks/top/all-music" + args + "&client_id=" + cid}
|
|
// DO NOT UNFOLD
|
|
// dangerous
|
|
// seems to go in an infinite loop
|
|
err = p.Proceed(false)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
for _, t := range p.Collection {
|
|
t.Fix(prefs, false)
|
|
}
|
|
|
|
return &p, nil
|
|
}
|