Update files.go
Cette révision appartient à :
kilo
GitHub
Parent
eb297454c1
révision
81ef4b92d9
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@ -1,187 +1,78 @@
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package torrentController
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import (
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"path/filepath"
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"strconv"
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"html/template"
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"encoding/hex"
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"net/http"
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"strings"
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"net/url"
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"time"
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"strconv"
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"github.com/NyaaPantsu/nyaa/models/torrents"
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"github.com/NyaaPantsu/nyaa/models"
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"github.com/NyaaPantsu/nyaa/config"
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"github.com/NyaaPantsu/nyaa/utils/log"
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"github.com/NyaaPantsu/nyaa/templates"
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"github.com/NyaaPantsu/nyaa/utils/format"
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"github.com/NyaaPantsu/nyaa/utils/filelist"
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"github.com/Stephen304/goscrape"
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"github.com/gin-gonic/gin"
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"github.com/anacrolix/dht"
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"github.com/anacrolix/torrent"
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"github.com/bradfitz/slice"
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)
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var client *torrent.Client
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func GetFilesHandler(c *gin.Context) {
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id, _ := strconv.ParseInt(c.Param("id"), 10, 32)
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torrent, err := torrents.FindByID(uint(id))
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func initClient() error {
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clientConfig := torrent.Config{
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DHTConfig: dht.ServerConfig{
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StartingNodes: dht.GlobalBootstrapAddrs,
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},
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ListenAddr: ":" + strconv.Itoa(config.Get().Torrents.FilesFetchingClientPort),
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}
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cl, err := torrent.NewClient(&clientConfig)
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if err != nil {
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log.Errorf("error creating client: %s", err)
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return err
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}
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client = cl
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return nil
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}
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// ViewHeadHandler : Controller for getting torrent stats
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func GetStatsHandler(c *gin.Context) {
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id, err := strconv.ParseInt(c.Param("id"), 10, 32)
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if err != nil {
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c.Status(http.StatusNotFound)
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return
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}
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updateTorrent, err := torrents.FindByID(uint(id))
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if err != nil {
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return
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if len(torrent.FileList) == 0 {
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var blankScrape models.Scrape
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ScrapeFiles(format.InfoHashToMagnet(strings.TrimSpace(torrent.Hash), torrent.Name, GetTorrentTrackers(torrent)...), torrent, blankScrape, true)
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}
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var CurrentData models.Scrape
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statsExists := !(models.ORM.Where("torrent_id = ?", id).Find(&CurrentData).RecordNotFound())
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folder := filelist.FileListToFolder(torrent.FileList, "root")
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templates.TorrentFileList(c, torrent.ToJSON(), folder)
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}
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if statsExists && c.Request.URL.Query()["files"] == nil {
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//Stats already exist, we check if the torrent stats have been scraped already very recently and if so, we stop there to avoid abuse of the /stats/:id route
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if isEmptyScrape(CurrentData) && time.Since(CurrentData.LastScrape).Minutes() <= config.Get().Scrape.MaxStatScrapingFrequencyUnknown {
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//Unknown stats but has been scraped less than X minutes ago (X being the limit set in the config file)
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return
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}
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if !isEmptyScrape(CurrentData) && time.Since(CurrentData.LastScrape).Minutes() <= config.Get().Scrape.MaxStatScrapingFrequency {
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//Known stats but has been scraped less than X minutes ago (X being the limit set in the config file)
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return
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}
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}
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Trackers := GetTorrentTrackers(updateTorrent)
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var stats goscrape.Result
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var torrentFiles []FileJSON
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if c.Request.URL.Query()["files"] != nil {
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if len(updateTorrent.FileList) > 0 {
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return
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}
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err, torrentFiles = ScrapeFiles(format.InfoHashToMagnet(strings.TrimSpace(updateTorrent.Hash), updateTorrent.Name, Trackers...), updateTorrent, CurrentData, statsExists)
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// ScrapeFiles : Scrape torrent files
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func ScrapeFiles(magnet string, torrent *models.Torrent, currentStats models.Scrape, statsExists bool) (error, []FileJSON) {
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if client == nil {
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err := initClient()
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if err != nil {
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return
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}
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} else {
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//Single() returns an array which contain results for each torrent Hash it is fed, since we only feed him one we want to directly access the results
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stats = goscrape.Single(Trackers, []string{
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updateTorrent.Hash,
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})[0]
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UpdateTorrentStats(updateTorrent, stats, CurrentData, []torrent.File{}, statsExists)
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}
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//If we put seeders on -1, the script instantly knows the fetching did not give any result, avoiding having to check all three stats below and in view.jet.html's javascript
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if isEmptyResult(stats) {
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stats.Seeders = -1
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}
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c.JSON(200, gin.H{
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"seeders": stats.Seeders,
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"leechers": stats.Leechers,
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"downloads": stats.Completed,
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"filelist": torrentFiles,
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"totalsize": fileSize(updateTorrent.Filesize),
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})
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return
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}
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// UpdateTorrentStats : Update stats & filelist if files are specified, otherwise just stats
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func UpdateTorrentStats(torrent *models.Torrent, stats goscrape.Result, currentStats models.Scrape, Files []torrent.File, statsExists bool) (JSONFilelist []FileJSON) {
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if stats.Seeders == -1 {
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stats.Seeders = 0
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}
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if !statsExists {
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torrent.Scrape = torrent.Scrape.Create(torrent.ID, uint32(stats.Seeders), uint32(stats.Leechers), uint32(stats.Completed), time.Now())
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//Create a stat entry in the DB because none exist
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} else {
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//Entry in the DB already exists, simply update it
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if isEmptyScrape(currentStats) || !isEmptyResult(stats) {
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torrent.Scrape = &models.Scrape{torrent.ID, uint32(stats.Seeders), uint32(stats.Leechers), uint32(stats.Completed), time.Now()}
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} else {
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torrent.Scrape = &models.Scrape{torrent.ID, uint32(currentStats.Seeders), uint32(currentStats.Leechers), uint32(currentStats.Completed), time.Now()}
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}
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//Only overwrite stats if the old one are Unknown OR if the new ones are not unknown, preventing good stats from being turned into unknown but allowing good stats to be updated to more reliable ones
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torrent.Scrape.Update(false)
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}
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if len(Files) > 0 {
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files, err := torrent.CreateFileList(Files)
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if err != nil {
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return
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}
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JSONFilelist = make([]FileJSON, 0, len(files))
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for _, f := range files {
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JSONFilelist = append(JSONFilelist, FileJSON{
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Path: filepath.Join(f.Path()...),
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Filesize: fileSize(f.Filesize),
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})
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}
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// Sort file list by lowercase filename
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slice.Sort(JSONFilelist, func(i, j int) bool {
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return strings.ToLower(JSONFilelist[i].Path) < strings.ToLower(JSONFilelist[j].Path)
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})
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}
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return
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}
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// GetTorrentTrackers : Get the torrent trackers and add the default ones if they are missing
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func GetTorrentTrackers(torrent *models.Torrent) []string {
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var Trackers []string
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if len(torrent.Trackers) > 3 {
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for _, line := range strings.Split(torrent.Trackers[3:], "&tr=") {
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tracker, error := url.QueryUnescape(line)
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if error == nil && strings.HasPrefix(tracker, "udp") {
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Trackers = append(Trackers, tracker)
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}
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//Cannot scrape from http trackers only keep UDP ones
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return err, []FileJSON{}
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}
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}
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for _, tracker := range config.Get().Torrents.Trackers.Default {
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if !contains(Trackers, tracker) && strings.HasPrefix(tracker, "udp") {
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Trackers = append(Trackers, tracker)
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t, _ := client.AddMagnet(magnet)
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<-t.GotInfo()
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infoHash := t.InfoHash()
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dst := make([]byte, hex.EncodedLen(len(t.InfoHash())))
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hex.Encode(dst, infoHash[:])
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var UDP []string
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for _, tracker := range t.Metainfo().AnnounceList[0] {
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if strings.HasPrefix(tracker, "udp") {
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UDP = append(UDP, tracker)
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}
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}
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return Trackers
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var results goscrape.Result
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if len(UDP) != 0 {
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udpscrape := goscrape.NewBulk(UDP)
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results = udpscrape.ScrapeBulk([]string{torrent.Hash})[0]
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}
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t.Drop()
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return nil, UpdateTorrentStats(torrent, results, currentStats, t.Files(), statsExists)
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}
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func isEmptyResult(stats goscrape.Result) bool {
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return stats.Seeders == 0 && stats.Leechers == 0 && stats.Completed == 0
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// FileJSON for file model in json,
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type FileJSON struct {
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Path string `json:"path"`
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Filesize template.HTML `json:"filesize"`
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}
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func isEmptyScrape(stats models.Scrape) bool {
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return stats.Seeders == 0 && stats.Leechers == 0 && stats.Completed == 0
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}
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func contains(s []string, e string) bool {
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for _, a := range s {
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if a == e {
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return true
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}
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}
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return false
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func fileSize(filesize int64) template.HTML {
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return template.HTML(format.FileSize(filesize))
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}
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