bt2qbt/b2q.go
2018-04-09 16:02:46 +03:00

342 lines
12 KiB
Go

package main
import (
"bufio"
"crypto/sha1"
"encoding/hex"
"fmt"
"github.com/fatih/color"
"github.com/zeebo/bencode"
"io"
"io/ioutil"
"launchpad.net/gnuflag"
"log"
"os"
"path/filepath"
"strconv"
"strings"
"time"
)
func decodetorrentfile(path string) (map[string]interface{}, error) {
dat, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
var torrent map[string]interface{}
if err := bencode.DecodeBytes([]byte(dat), &torrent); err != nil {
return nil, err
}
return torrent, nil
}
func encodetorrentfile(path string, newstructure map[string]interface{}) error {
if _, err := os.Stat(path); os.IsNotExist(err) {
os.Create(path)
}
file, err := os.OpenFile(path, os.O_WRONLY, 0666)
if err != nil {
return err
}
defer file.Close()
bufferedWriter := bufio.NewWriter(file)
enc := bencode.NewEncoder(bufferedWriter)
if err := enc.Encode(newstructure); err != nil {
return err
}
bufferedWriter.Flush()
return nil
}
func gethash(info map[string]interface{}) (hash string) {
torinfo, _ := bencode.EncodeString(info)
h := sha1.New()
io.WriteString(h, torinfo)
hash = hex.EncodeToString(h.Sum(nil))
return
}
func fillnothavefiles(npieces *int64) []byte {
var newpieces = make([]byte, 0, *npieces)
for i := int64(0); i < *npieces; i++ {
chr, _ := strconv.Atoi("1")
newpieces = append(newpieces, byte(chr))
}
return newpieces
}
func fillhavefiles(sizeandprio *[][]int64, npieces *int64, piecelenght *int64) []byte {
var newpieces = make([]byte, 0, *npieces)
var allocation [][]int64
offset := int64(0)
for _, pair := range *sizeandprio {
allocation = append(allocation, []int64{offset + 1, offset + pair[0], pair[1]})
offset = offset + pair[0]
}
for i := int64(0); i < *npieces; i++ {
belongs := false
first, last := i**piecelenght, (i+1)**piecelenght
for _, trio := range allocation {
if (first >= trio[0]-*piecelenght || last <= trio[1]+*piecelenght) && trio[2] == 1 {
belongs = true
}
}
var chr int
if belongs {
chr, _ = strconv.Atoi("1")
} else {
chr, _ = strconv.Atoi("0")
}
newpieces = append(newpieces, byte(chr))
}
return newpieces
}
func prioconvert(src string) (newprio []int) {
for _, c := range []byte(src) {
if i := int(c); (i == 0) || (i == 128) { // if not selected
newprio = append(newprio, 0)
} else if (i == 4) || (i == 8) { // if low or normal prio
newprio = append(newprio, 1)
} else if i == 12 { // if high prio
newprio = append(newprio, 6)
}
}
return
}
func fmtime(path string) (mtime int64) {
if fi, err := os.Stat(path); err != nil {
return 0
} else {
mtime = int64(fi.ModTime().Unix())
return
}
}
func copyfile(src string, dst string) error {
originalFile, err := os.Open(src)
if err != nil {
return err
}
defer originalFile.Close()
newFile, err := os.Create(dst)
if err != nil {
return err
}
defer newFile.Close()
if _, err := io.Copy(newFile, originalFile); err != nil {
return err
}
if err := newFile.Sync(); err != nil {
return err
}
return nil
}
func logic(key string, value map[string]interface{}, bitdir *string, with_label *bool, with_tags *bool, qbitdir *string, comChannel chan string) error {
newstructure := map[string]interface{}{"active_time": 0, "added_time": 0, "announce_to_dht": 0,
"announce_to_lsd": 0, "announce_to_trackers": 0, "auto_managed": 1,
"banned_peers": new(string), "banned_peers6": new(string), "blocks per piece": 0,
"completed_time": 0, "download_rate_limit": -1, "file sizes": new([][]int64),
"file-format": "libtorrent resume file", "file-version": 1, "file_priority": new([]int), "finished_time": 0,
"info-hash": new([]byte), "last_seen_complete": 0, "libtorrent-version": "1.1.6.0",
"max_connections": 100, "max_uploads": 100, "num_downloaded": 0,
"num_incomplete": 0, "paused": new(int), "peers": new(string), "peers6": new(string),
"pieces": new([]byte), "qBt-category": new(string), "qBt-name": new(string),
"qBt-queuePosition": 1, "qBt-ratioLimit": -2000, "qBt-savePath": new(string),
"qBt-seedStatus": 1, "qBt-seedingTimeLimit": -2, "qBt-tags": new([]string),
"qBt-tempPathDisabled": 0, "save_path": new(string), "seed_mode": 0, "seeding_time": 0,
"sequential_download": 0, "super_seeding": 0, "total_downloaded": 0,
"total_uploaded": 0, "trackers": new([][]interface{}), "upload_rate_limit": 0,
}
torrentfilepath := *bitdir + key
if _, err := os.Stat(torrentfilepath); os.IsNotExist(err) {
comChannel <- fmt.Sprintf("Can't find torrent file %v for %v", torrentfilepath, key)
return err
}
torrentfile, err := decodetorrentfile(torrentfilepath)
if err != nil {
comChannel <- fmt.Sprintf("Can't decode torrent file %v for %v", torrentfilepath, key)
return err
}
newstructure["active_time"] = value["runtime"]
newstructure["added_time"] = value["added_on"]
newstructure["completed_time"] = value["completed_on"]
newstructure["info-hash"] = value["info"]
newstructure["qBt-tags"] = value["labels"]
newstructure["seeding_time"] = value["runtime"]
if value["started"] == 0 {
newstructure["paused"] = 1
} else {
newstructure["paused"] = 0
}
newstructure["paused"] = 1
newstructure["finished_time"] = int(time.Since(time.Unix(value["completed_on"].(int64), 0)).Minutes())
if value["completed_on"] != 0 {
newstructure["last_seen_complete"] = int(time.Now().Unix())
}
newstructure["total_downloaded"] = value["downloaded"]
newstructure["total_uploaded"] = value["uploaded"]
newstructure["upload_rate_limit"] = value["upspeed"]
if *with_label == true {
newstructure["qBt-category"] = value["label"]
} else {
newstructure["qBt-category"] = ""
}
if *with_tags == true {
newstructure["qBt-tags"] = value["labels"]
} else {
newstructure["qBt-tags"] = ""
}
var trackers []interface{}
for _, tracker := range value["trackers"].([]interface{}) {
trackers = append(trackers, []interface{}{tracker})
}
newstructure["trackers"] = trackers
newstructure["file_priority"] = prioconvert(value["prio"].(string))
var hasfiles bool
if _, ok := torrentfile["info"].(map[string]interface{})["files"]; ok {
hasfiles = true
} else {
hasfiles = false
}
filesizes := float32(0)
var sizeandprio [][]int64
if files, ok := torrentfile["info"].(map[string]interface{})["files"]; ok {
var filelists []interface{}
for num, file := range files.([]interface{}) {
var lenght, mtime int64
filename := file.(map[string]interface{})["path"].([]interface{})[0].(string)
fullpath := value["path"].(string) + "\\" + filename
filesizes += float32(file.(map[string]interface{})["length"].(int64))
if n := newstructure["file_priority"].([]int)[num]; n != 0 {
lenght = file.(map[string]interface{})["length"].(int64)
sizeandprio = append(sizeandprio, []int64{lenght, 1})
mtime = fmtime(fullpath)
} else {
lenght, mtime = 0, 0
sizeandprio = append(sizeandprio, []int64{file.(map[string]interface{})["length"].(int64), 0})
}
flenmtime := []int64{lenght, mtime}
filelists = append(filelists, flenmtime)
}
newstructure["file sizes"] = filelists
} else {
filesizes = float32(torrentfile["info"].(map[string]interface{})["length"].(int64))
newstructure["file sizes"] = [][]int64{{torrentfile["info"].(map[string]interface{})["length"].(int64), fmtime(value["path"].(string))}}
}
newstructure["blocks per piece"] = torrentfile["info"].(map[string]interface{})["piece length"].(int64) / value["blocksize"].(int64)
var npieces int64
piecelenght := torrentfile["info"].(map[string]interface{})["piece length"].(int64)
if ((filesizes / float32(piecelenght)) - float32((int64(filesizes) / piecelenght))) != 0 { // check fraction
npieces = int64(filesizes)/torrentfile["info"].(map[string]interface{})["piece length"].(int64) + 1
} else {
npieces = int64(filesizes) / torrentfile["info"].(map[string]interface{})["piece length"].(int64)
}
if hasfiles {
newstructure["pieces"] = fillhavefiles(&sizeandprio, &npieces, &piecelenght)
} else {
newstructure["pieces"] = fillnothavefiles(&npieces)
}
torrentname := torrentfile["info"].(map[string]interface{})["name"].(string)
origpath := value["path"].(string)
_, lastdirname := filepath.Split(strings.Replace(origpath, "\\", "/", -1))
if hasfiles {
if lastdirname == torrentname {
newstructure["qBt-hasRootFolder"] = 1
newstructure["save_path"] = origpath[0 : len(origpath)-len(lastdirname)]
} else {
newstructure["qBt-hasRootFolder"] = 0
newstructure["save_path"] = value["path"].(string) + "\\"
}
} else {
newstructure["qBt-hasRootFolder"] = 0
newstructure["save_path"] = origpath[0 : len(origpath)-len(lastdirname)]
}
newstructure["qBt-savePath"] = newstructure["save_path"]
newbasename := gethash(torrentfile["info"].(map[string]interface{}))
if err := encodetorrentfile(*qbitdir+newbasename+".fastresume", newstructure); err != nil {
comChannel <- fmt.Sprintf("Can't create qBittorrent fastresume file %v", *qbitdir+newbasename+".fastresume")
return err
}
if err := copyfile(*bitdir+key, *qbitdir+newbasename+".torrent"); err != nil {
comChannel <- fmt.Sprintf("Can't create qBittorrent torrent file %v", *qbitdir+newbasename+".torrent")
return err
}
comChannel <- fmt.Sprintf("Sucessfully imported %v", key)
return nil
}
func main() {
var bitdir, qbitdir string
var with_label, with_tags bool = true, true
var without_label, without_tags bool
gnuflag.StringVar(&bitdir, "source", (os.Getenv("APPDATA") + "\\BitTorrent\\"), "Source directory that contains resume.dat and torrents files")
gnuflag.StringVar(&bitdir, "s", (os.Getenv("APPDATA") + "\\BitTorrent\\"), "Source directory that contains resume.dat and torrents files")
gnuflag.StringVar(&qbitdir, "destination", (os.Getenv("LOCALAPPDATA") + "\\qBittorrent\\BT_backup\\"), "Destination directory BT_backup (as default)")
gnuflag.StringVar(&qbitdir, "d", (os.Getenv("LOCALAPPDATA") + "\\qBittorrent\\BT_backup\\"), "Destination directory BT_backup (as default)")
gnuflag.BoolVar(&without_label, "without-labels", false, "Do not export/import labels")
gnuflag.BoolVar(&without_tags, "without-tags", false, "Do not export/import tags")
gnuflag.Parse(true)
if without_label {
with_label = false
}
if without_tags {
with_tags = false
}
if bitdir[len(bitdir)-1] != os.PathSeparator {
bitdir += string(os.PathSeparator)
}
if qbitdir[len(qbitdir)-1] != os.PathSeparator {
qbitdir += string(os.PathSeparator)
}
if _, err := os.Stat(bitdir); os.IsNotExist(err) {
log.Println("Can't find uTorrent\\Bittorrent folder")
time.Sleep(30 * time.Second)
os.Exit(1)
}
if _, err := os.Stat(qbitdir); os.IsNotExist(err) {
log.Println("Can't find qBittorrent folder")
time.Sleep(30 * time.Second)
os.Exit(1)
}
resumefilepath := bitdir + "resume.dat"
if _, err := os.Stat(resumefilepath); os.IsNotExist(err) {
log.Println("Can't find uTorrent\\Bittorrent resume file")
time.Sleep(30 * time.Second)
os.Exit(1)
}
resumefile, err := decodetorrentfile(resumefilepath)
if err != nil {
log.Println("Can't decode uTorrent\\Bittorrent resume file")
time.Sleep(30 * time.Second)
os.Exit(1)
}
color.HiRed("Check that the qBittorrent is turned off and the directory %v is backed up.\n\n", qbitdir)
fmt.Println("Press Enter to start")
fmt.Scanln()
fmt.Println("Started")
totaljobs := len(resumefile) - 2
numjob := 1
comChannel := make(chan string, totaljobs)
for key, value := range resumefile {
if key != ".fileguard" && key != "rec" {
go logic(key, value.(map[string]interface{}), &bitdir, &with_label, &with_tags, &qbitdir, comChannel)
}
}
for message := range comChannel {
fmt.Printf("%v/%v %v \n", numjob, totaljobs, message)
numjob++
if numjob-1 == totaljobs {
break
}
}
fmt.Println("\nPress Enter to exit")
fmt.Scanln()
}