241 lines
8.4 KiB
Go
Executable File
241 lines
8.4 KiB
Go
Executable File
package main
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"os"
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"path/filepath"
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"strings"
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)
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// APIHandler handles API requests.
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func apiHandler(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Server", "MeowMusicEmbeddedServer")
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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queryParams := r.URL.Query()
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fmt.Printf("[Web Access] Handling request for %s?%s\n", r.URL.Path, queryParams.Encode())
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song := queryParams.Get("song")
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singer := queryParams.Get("singer")
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ip, err := IPhandler(r)
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if err != nil {
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ip = "0.0.0.0"
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}
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if song == "" {
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musicItem := MusicItem{
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FromCache: false,
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IP: ip,
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}
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json.NewEncoder(w).Encode(musicItem)
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return
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}
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// Attempt to retrieve music items from sources.json
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sources := readSources()
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var musicItem MusicItem
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var found bool = false
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// Build request scheme
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var scheme string
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if r.TLS == nil {
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scheme = "http"
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} else {
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scheme = "https"
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}
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for _, source := range sources {
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if source.Title == song {
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if singer == "" || source.Artist == singer {
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// Determine the protocol for each URL and build accordingly
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var audioURL, audioFullURL, m3u8URL, lyricURL, coverURL string
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if strings.HasPrefix(source.AudioURL, "http://") {
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audioURL = scheme + "://" + r.Host + "/url/http/" + url.QueryEscape(strings.TrimPrefix(source.AudioURL, "http://"))
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} else if strings.HasPrefix(source.AudioURL, "https://") {
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audioURL = scheme + "://" + r.Host + "/url/https/" + url.QueryEscape(strings.TrimPrefix(source.AudioURL, "https://"))
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} else {
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audioURL = scheme + "://" + r.Host + "/" + url.QueryEscape(source.AudioURL)
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}
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if strings.HasPrefix(source.AudioFullURL, "http://") {
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audioFullURL = scheme + "://" + r.Host + "/url/http/" + url.QueryEscape(strings.TrimPrefix(source.AudioFullURL, "http://"))
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} else if strings.HasPrefix(source.AudioFullURL, "https://") {
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audioFullURL = scheme + "://" + r.Host + "/url/https/" + url.QueryEscape(strings.TrimPrefix(source.AudioFullURL, "https://"))
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} else {
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audioFullURL = scheme + "://" + r.Host + "/" + url.QueryEscape(source.AudioFullURL)
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}
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if strings.HasPrefix(source.M3U8URL, "http://") {
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m3u8URL = scheme + "://" + r.Host + "/url/http/" + url.QueryEscape(strings.TrimPrefix(source.M3U8URL, "http://"))
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} else if strings.HasPrefix(source.M3U8URL, "https://") {
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m3u8URL = scheme + "://" + r.Host + "/url/https/" + url.QueryEscape(strings.TrimPrefix(source.M3U8URL, "https://"))
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} else {
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m3u8URL = scheme + "://" + r.Host + "/" + url.QueryEscape(source.M3U8URL)
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}
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if strings.HasPrefix(source.LyricURL, "http://") {
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lyricURL = scheme + "://" + r.Host + "/url/http/" + url.QueryEscape(strings.TrimPrefix(source.LyricURL, "http://"))
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} else if strings.HasPrefix(source.LyricURL, "https://") {
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lyricURL = scheme + "://" + r.Host + "/url/https/" + url.QueryEscape(strings.TrimPrefix(source.LyricURL, "https://"))
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} else {
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lyricURL = scheme + "://" + r.Host + "/" + url.QueryEscape(source.LyricURL)
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}
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if strings.HasPrefix(source.CoverURL, "http://") {
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coverURL = scheme + "://" + r.Host + "/url/http/" + url.QueryEscape(strings.TrimPrefix(source.CoverURL, "http://"))
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} else if strings.HasPrefix(source.CoverURL, "https://") {
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coverURL = scheme + "://" + r.Host + "/url/https/" + url.QueryEscape(strings.TrimPrefix(source.CoverURL, "https://"))
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} else {
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coverURL = scheme + "://" + r.Host + "/" + url.QueryEscape(source.CoverURL)
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}
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musicItem = MusicItem{
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Title: source.Title,
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Artist: source.Artist,
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AudioURL: audioURL,
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AudioFullURL: audioFullURL,
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M3U8URL: m3u8URL,
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LyricURL: lyricURL,
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CoverURL: coverURL,
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Duration: source.Duration,
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FromCache: false,
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}
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found = true
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break
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}
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}
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}
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// If not found in sources.json, attempt to retrieve from local folder
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if !found {
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musicItem = getLocalMusicItem(song, singer)
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musicItem.FromCache = false
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if musicItem.Title != "" {
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if musicItem.AudioURL != "" {
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musicItem.AudioURL = scheme + "://" + r.Host + musicItem.AudioURL
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}
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if musicItem.AudioFullURL != "" {
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musicItem.AudioFullURL = scheme + "://" + r.Host + musicItem.AudioFullURL
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}
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if musicItem.M3U8URL != "" {
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musicItem.M3U8URL = scheme + "://" + r.Host + musicItem.M3U8URL
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}
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if musicItem.LyricURL != "" {
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musicItem.LyricURL = scheme + "://" + r.Host + musicItem.LyricURL
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}
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if musicItem.CoverURL != "" {
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musicItem.CoverURL = scheme + "://" + r.Host + musicItem.CoverURL
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}
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found = true
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}
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}
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// If still not found, attempt to retrieve from cache file
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if !found {
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fmt.Println("[Info] Reading music from cache.")
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// Fuzzy matching for singer and song
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files, err := filepath.Glob("./cache/*.json")
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if err != nil {
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fmt.Println("[Error] Error reading cache directory:", err)
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return
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}
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for _, file := range files {
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if strings.Contains(filepath.Base(file), song) && (singer == "" || strings.Contains(filepath.Base(file), singer)) {
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musicItem, found = readFromCache(file)
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if found {
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if musicItem.AudioURL != "" {
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musicItem.AudioURL = scheme + "://" + r.Host + musicItem.AudioURL
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}
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if musicItem.AudioFullURL != "" {
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musicItem.AudioFullURL = scheme + "://" + r.Host + musicItem.AudioFullURL
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}
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if musicItem.M3U8URL != "" {
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musicItem.M3U8URL = scheme + "://" + r.Host + musicItem.M3U8URL
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}
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if musicItem.LyricURL != "" {
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musicItem.LyricURL = scheme + "://" + r.Host + musicItem.LyricURL
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}
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if musicItem.CoverURL != "" {
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musicItem.CoverURL = scheme + "://" + r.Host + musicItem.CoverURL
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}
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musicItem.FromCache = true
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break
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}
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}
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}
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}
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// If still not found, request and cache the music item in a separate goroutine
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// 直接进行流式播放
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if !found {
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fmt.Println("[Info] Updating music item cache from API request.")
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musicItem = requestAndCacheMusic(song, singer)
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fmt.Println("[Info] Music item cache updated.")
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musicItem.FromCache = false
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musicItem.AudioURL = scheme + "://" + r.Host + "/stream_live?song=" + song + "&singer=" + singer
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musicItem.AudioFullURL = scheme + "://" + r.Host + "/stream_live?song=" + song + "&singer=" + singer
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musicItem.M3U8URL = scheme + "://" + r.Host + musicItem.M3U8URL
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musicItem.LyricURL = scheme + "://" + r.Host + musicItem.LyricURL
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musicItem.CoverURL = scheme + "://" + r.Host + musicItem.CoverURL
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found = true
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}
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// If still not found, return an empty MusicItem
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if !found {
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musicItem = MusicItem{
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FromCache: false,
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IP: ip,
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}
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} else {
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musicItem.IP = ip
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}
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json.NewEncoder(w).Encode(musicItem)
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}
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// streamLiveHandler 实时流式转码接口 - 边下载边播放，无需等待！
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func streamLiveHandler(w http.ResponseWriter, r *http.Request) {
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// 设置 CORS 和音频相关头
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Accept-Ranges", "bytes")
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queryParams := r.URL.Query()
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song := queryParams.Get("song")
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singer := queryParams.Get("singer")
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fmt.Printf("[Stream Live] Request: song=%s, singer=%s\n", song, singer)
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if song == "" {
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http.Error(w, "Missing song parameter", http.StatusBadRequest)
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return
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}
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// 1. 检查缓存是否存在
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dirName := fmt.Sprintf("./files/cache/music/%s-%s", singer, song)
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cachedFile := filepath.Join(dirName, "music.mp3")
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if _, err := os.Stat(cachedFile); err == nil {
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// 缓存存在，直接返回文件
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fmt.Printf("[Stream Live] Serving from cache: %s\n", cachedFile)
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w.Header().Set("Content-Type", "audio/mpeg")
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http.ServeFile(w, r, cachedFile)
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return
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}
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// 2. 缓存不存在，获取远程URL并实时流式转码
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fmt.Printf("[Stream Live] Cache miss, fetching from API...\n")
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// 调用枫雨API获取远程音乐URL（不下载，只获取URL）
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remoteURL := getRemoteMusicURLOnly(song, singer)
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if remoteURL == "" {
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http.Error(w, "Failed to get remote music URL", http.StatusNotFound)
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return
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}
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fmt.Printf("[Stream Live] Starting live stream from: %s\n", remoteURL)
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// 4. 实时流式转码
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if err := streamConvertToWriter(remoteURL, w); err != nil {
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fmt.Printf("[Stream Live] Error: %v\n", err)
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// 错误可能已经发送了部分数据，无法再发送错误响应
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}
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}
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