273 lignes
6,9 Kio
Go
273 lignes
6,9 Kio
Go
package router
|
|
|
|
import (
|
|
"encoding/base32"
|
|
"encoding/hex"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"mime/multipart"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"regexp"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/ewhal/nyaa/cache"
|
|
"github.com/ewhal/nyaa/config"
|
|
"github.com/ewhal/nyaa/service/captcha"
|
|
"github.com/ewhal/nyaa/service/upload"
|
|
"github.com/ewhal/nyaa/util"
|
|
"github.com/ewhal/nyaa/util/metainfo"
|
|
"github.com/microcosm-cc/bluemonday"
|
|
"github.com/zeebo/bencode"
|
|
)
|
|
|
|
// UploadForm serializing HTTP form for torrent upload
|
|
type UploadForm struct {
|
|
Name string
|
|
Magnet string
|
|
Category string
|
|
Remake bool
|
|
Description string
|
|
Status int
|
|
captcha.Captcha
|
|
|
|
Infohash string
|
|
CategoryID int
|
|
SubCategoryID int
|
|
Filesize int64
|
|
Filepath string
|
|
}
|
|
|
|
// TODO: these should be in another package (?)
|
|
|
|
// form names
|
|
const UploadFormName = "name"
|
|
const UploadFormTorrent = "torrent"
|
|
const UploadFormMagnet = "magnet"
|
|
const UploadFormCategory = "c"
|
|
const UploadFormRemake = "remake"
|
|
const UploadFormDescription = "desc"
|
|
const UploadFormStatus = "status"
|
|
|
|
// error indicating that you can't send both a magnet link and torrent
|
|
var ErrTorrentPlusMagnet = errors.New("upload either a torrent file or magnet link, not both")
|
|
|
|
// error indicating a torrent is private
|
|
var ErrPrivateTorrent = errors.New("torrent is private")
|
|
|
|
// error indicating a problem with its trackers
|
|
var ErrTrackerProblem = errors.New("torrent does not have any (working) trackers: https://" + config.WebAddress + "/faq#trackers")
|
|
|
|
// error indicating a torrent's name is invalid
|
|
var ErrInvalidTorrentName = errors.New("torrent name is invalid")
|
|
|
|
// error indicating a torrent's description is invalid
|
|
var ErrInvalidTorrentDescription = errors.New("torrent description is invalid")
|
|
|
|
// error indicating a torrent's category is invalid
|
|
var ErrInvalidTorrentCategory = errors.New("torrent category is invalid")
|
|
|
|
var p = bluemonday.UGCPolicy()
|
|
|
|
/**
|
|
UploadForm.ExtractInfo takes an http request and computes all fields for this form
|
|
*/
|
|
func (f *UploadForm) ExtractInfo(r *http.Request) error {
|
|
|
|
f.Name = r.FormValue(UploadFormName)
|
|
f.Category = r.FormValue(UploadFormCategory)
|
|
f.Description = r.FormValue(UploadFormDescription)
|
|
f.Status, _ = strconv.Atoi(r.FormValue(UploadFormStatus))
|
|
f.Magnet = r.FormValue(UploadFormMagnet)
|
|
f.Remake = r.FormValue(UploadFormRemake) == "on"
|
|
f.Captcha = captcha.Extract(r)
|
|
|
|
if !captcha.Authenticate(f.Captcha) {
|
|
// TODO: Prettier passing of mistyped Captcha errors
|
|
return errors.New(captcha.ErrInvalidCaptcha.Error())
|
|
}
|
|
|
|
// trim whitespace
|
|
f.Name = util.TrimWhitespaces(f.Name)
|
|
f.Description = p.Sanitize(util.TrimWhitespaces(f.Description))
|
|
f.Magnet = util.TrimWhitespaces(f.Magnet)
|
|
cache.Impl.ClearAll()
|
|
|
|
catsSplit := strings.Split(f.Category, "_")
|
|
// need this to prevent out of index panics
|
|
if len(catsSplit) == 2 {
|
|
CatID, err := strconv.Atoi(catsSplit[0])
|
|
if err != nil {
|
|
return ErrInvalidTorrentCategory
|
|
}
|
|
SubCatID, err := strconv.Atoi(catsSplit[1])
|
|
if err != nil {
|
|
return ErrInvalidTorrentCategory
|
|
}
|
|
|
|
f.CategoryID = CatID
|
|
f.SubCategoryID = SubCatID
|
|
} else {
|
|
return ErrInvalidTorrentCategory
|
|
}
|
|
|
|
// first: parse torrent file (if any) to fill missing information
|
|
tfile, _, err := r.FormFile(UploadFormTorrent)
|
|
if err == nil {
|
|
var torrent metainfo.TorrentFile
|
|
|
|
// decode torrent
|
|
_, seekErr := tfile.Seek(0, io.SeekStart)
|
|
if seekErr != nil {
|
|
return seekErr
|
|
}
|
|
err = bencode.NewDecoder(tfile).Decode(&torrent)
|
|
if err != nil {
|
|
return metainfo.ErrInvalidTorrentFile
|
|
}
|
|
|
|
// check a few things
|
|
if torrent.IsPrivate() {
|
|
return ErrPrivateTorrent
|
|
}
|
|
trackers := torrent.GetAllAnnounceURLS()
|
|
if !uploadService.CheckTrackers(trackers) {
|
|
return ErrTrackerProblem
|
|
}
|
|
|
|
// Name
|
|
if len(f.Name) == 0 {
|
|
f.Name = torrent.TorrentName()
|
|
}
|
|
|
|
// Magnet link: if a file is provided it should be empty
|
|
if len(f.Magnet) != 0 {
|
|
return ErrTorrentPlusMagnet
|
|
}
|
|
binInfohash, err := torrent.Infohash()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
f.Infohash = strings.ToUpper(hex.EncodeToString(binInfohash[:]))
|
|
f.Magnet = util.InfoHashToMagnet(f.Infohash, f.Name, trackers...)
|
|
|
|
// extract filesize
|
|
f.Filesize = int64(torrent.TotalSize())
|
|
} else {
|
|
// No torrent file provided
|
|
magnetUrl, err := url.Parse(string(f.Magnet)) //?
|
|
if err != nil {
|
|
return err
|
|
}
|
|
xt := magnetUrl.Query().Get("xt")
|
|
if !strings.HasPrefix(xt, "urn:btih:") {
|
|
return errors.New("incorrect magnet")
|
|
}
|
|
xt = strings.SplitAfter(xt, ":")[2]
|
|
f.Infohash = strings.ToUpper(strings.Split(xt, "&")[0])
|
|
isBase32, err := regexp.MatchString("^[2-7A-Z]{32}$", f.Infohash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !isBase32 {
|
|
isBase16, err := regexp.MatchString("^[0-9A-F]{40}$", f.Infohash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !isBase16 {
|
|
return errors.New("incorrect hash")
|
|
}
|
|
} else {
|
|
//convert to base16
|
|
data, err := base32.StdEncoding.DecodeString(f.Infohash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
hash16 := make([]byte, hex.EncodedLen(len(data)))
|
|
hex.Encode(hash16, data)
|
|
f.Infohash = string(hash16)
|
|
}
|
|
|
|
f.Filesize = 0
|
|
f.Filepath = ""
|
|
}
|
|
|
|
// then actually check that we have everything we need
|
|
if len(f.Name) == 0 {
|
|
return ErrInvalidTorrentName
|
|
}
|
|
|
|
// after data has been checked & extracted, write it to disk
|
|
if len(config.TorrentFileStorage) > 0 {
|
|
err := WriteTorrentToDisk(tfile, f.Infohash+".torrent", &f.Filepath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
f.Filepath = ""
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (f *UploadForm) ExtractEditInfo(r *http.Request) error {
|
|
f.Name = r.FormValue(UploadFormName)
|
|
f.Category = r.FormValue(UploadFormCategory)
|
|
f.Description = r.FormValue(UploadFormDescription)
|
|
f.Status, _ = strconv.Atoi(r.FormValue(UploadFormStatus))
|
|
|
|
// trim whitespace
|
|
f.Name = util.TrimWhitespaces(f.Name)
|
|
f.Description = p.Sanitize(util.TrimWhitespaces(f.Description))
|
|
|
|
catsSplit := strings.Split(f.Category, "_")
|
|
// need this to prevent out of index panics
|
|
if len(catsSplit) == 2 {
|
|
CatID, err := strconv.Atoi(catsSplit[0])
|
|
if err != nil {
|
|
return ErrInvalidTorrentCategory
|
|
}
|
|
SubCatID, err := strconv.Atoi(catsSplit[1])
|
|
if err != nil {
|
|
return ErrInvalidTorrentCategory
|
|
}
|
|
|
|
f.CategoryID = CatID
|
|
f.SubCategoryID = SubCatID
|
|
} else {
|
|
return ErrInvalidTorrentCategory
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func WriteTorrentToDisk(file multipart.File, name string, fullpath *string) error {
|
|
_, seekErr := file.Seek(0, io.SeekStart)
|
|
if seekErr != nil {
|
|
return seekErr
|
|
}
|
|
b, err := ioutil.ReadAll(file)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*fullpath = fmt.Sprintf("%s%c%s", config.TorrentFileStorage, os.PathSeparator, name)
|
|
return ioutil.WriteFile(*fullpath, b, 0644)
|
|
}
|
|
|
|
// NewUploadForm creates a new upload form given parameters as list
|
|
func NewUploadForm(params ...string) (uploadForm UploadForm) {
|
|
if len(params) > 1 {
|
|
uploadForm.Category = params[0]
|
|
} else {
|
|
uploadForm.Category = "3_12"
|
|
}
|
|
if len(params) > 2 {
|
|
uploadForm.Description = params[1]
|
|
} else {
|
|
uploadForm.Description = "Description"
|
|
}
|
|
return
|
|
}
|