112 lignes
3.3 KiB
Go
112 lignes
3.3 KiB
Go
package torrentController
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import (
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"fmt"
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"io"
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"os"
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"strconv"
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"strings"
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msg "github.com/NyaaPantsu/nyaa/utils/messages"
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"github.com/NyaaPantsu/nyaa/utils/upload"
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"github.com/NyaaPantsu/nyaa/config"
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"github.com/NyaaPantsu/nyaa/models/torrents"
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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/gin-gonic/gin"
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)
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// DownloadTorrent : Controller for downloading a torrent
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func DownloadTorrent(c *gin.Context) {
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hash := c.Param("hash")
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messages := msg.GetMessages(c)
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torrent, err := torrents.FindRawByHash(hash)
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if err != nil {
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messages.AddError("errors", "No torrent with such hash")
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//File not found, send 404
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variables := templates.Commonvariables(c)
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templates.Render(c, "errors/torrent_file_missing.jet.html", variables)
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return
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}
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if c.Query("js_query") != "" {
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exists := true
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generating := false
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if len(config.Get().Torrents.FileStorage) == 0 {
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exists = false
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} else {
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Openfile, err := os.Open(fmt.Sprintf("%s%c%s.torrent", config.Get().Torrents.FileStorage, os.PathSeparator, hash))
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defer Openfile.Close()
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if err != nil {
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exists = false
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generating = true
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var trackers []string
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if torrent.Trackers == "" {
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trackers = config.Get().Torrents.Trackers.Default
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} else {
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trackers = torrent.GetTrackersArray()
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}
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magnet := format.InfoHashToMagnet(strings.TrimSpace(torrent.Hash), torrent.Name, trackers...)
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go upload.GenerateTorrent(magnet)
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}
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}
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c.JSON(200, gin.H{ // Better to use gin for that, less code
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"exists": exists,
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"generating": generating,
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})
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return
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}
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if len(config.Get().Torrents.FileStorage) == 0 { // if no FileStorage configured, you still can display the magnet link
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messages.AddError("errors", "We do not store torrents file")
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//File not found, send 404
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variables := templates.Commonvariables(c)
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var trackers []string
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if torrent.Trackers == "" {
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trackers = config.Get().Torrents.Trackers.Default
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} else {
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trackers = torrent.GetTrackersArray()
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}
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magnet := format.InfoHashToMagnet(strings.TrimSpace(torrent.Hash), torrent.Name, trackers...)
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variables.Set("magnet", magnet)
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templates.Render(c, "errors/torrent_file_missing.jet.html", variables)
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return
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}
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//Check if file exists and open
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Openfile, err := os.Open(torrent.GetPath())
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if err != nil {
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//File not found, send 404
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variables := templates.Commonvariables(c)
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var trackers []string
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if torrent.Trackers == "" {
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trackers = config.Get().Torrents.Trackers.Default
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} else {
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trackers = torrent.GetTrackersArray()
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}
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magnet := format.InfoHashToMagnet(strings.TrimSpace(torrent.Hash), torrent.Name, trackers...)
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variables.Set("magnet", magnet)
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go upload.GenerateTorrent(magnet)
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templates.Render(c, "errors/torrent_file_missing.jet.html", variables)
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return
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}
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defer Openfile.Close() //Close after function return
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//Get the file size
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FileStat, _ := Openfile.Stat() //Get info from file
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FileSize := strconv.FormatInt(FileStat.Size(), 10) //Get file size as a string
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c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s.torrent\"", torrent.Name))
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c.Header("Content-Type", "application/x-bittorrent")
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c.Header("Content-Length", FileSize)
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//Send the file
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// We reset the offset to 0
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Openfile.Seek(0, 0)
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io.Copy(c.Writer, Openfile) //'Copy' the file to the client
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}
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