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rtorrent.go
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rtorrent.go
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package kahva
import (
"encoding/base64"
"errors"
"net/http"
"reflect"
"strconv"
"github.com/kolo/xmlrpc"
)
type Torrent struct {
Hash string `rt:"d.hash=" json:"hash"`
Name string `rt:"d.name=" json:"name"`
SizeBytes int64 `rt:"d.size_bytes=" json:"size_bytes"`
CompletedBytes int64 `rt:"d.completed_bytes=" json:"completed_bytes"`
UploadRate int64 `rt:"d.up.rate=" json:"upload_rate"`
UploadTotal int64 `rt:"d.up.total=" json:"upload_total"`
DownloadRate int64 `rt:"d.down.rate=" json:"download_rate"`
DownloadTotal int64 `rt:"d.down.total=" json:"download_total"`
Message string `rt:"d.message=" json:"message"`
BaseFilename string `rt:"d.base_filename=" json:"base_filename"`
BasePath string `rt:"d.base_path=" json:"base_path"`
IsActive int64 `rt:"d.is_active=" json:"is_active"`
IsOpen int64 `rt:"d.is_open=" json:"is_open"`
IsHashing int64 `rt:"d.is_hash_checking=" json:"is_hashing"`
Leechers int64 `rt:"d.peers_accounted=" json:"leechers"`
Seeders int64 `rt:"d.peers_complete=" json:"seeders"`
State int64 `rt:"d.state=" json:"state"`
StateChanged int64 `rt:"d.state_changed=" json:"state_changed"`
StateCounter int64 `rt:"d.state_counter=" json:"state_counter"`
Priority int64 `rt:"d.priority=" json:"priority"`
Custom1 string `rt:"d.custom1=" json:"custom1"`
Custom2 string `rt:"d.custom2=" json:"custom2"`
Custom3 string `rt:"d.custom3=" json:"custom3"`
Custom4 string `rt:"d.custom4=" json:"custom4"`
Custom5 string `rt:"d.custom5=" json:"custom5"`
}
type File struct {
Path string `rt:"f.path=" json:"path"`
Size int64 `rt:"f.size_bytes=" json:"size"`
SizeChunks int64 `rt:"f.size_chunks=" json:"size_chunks"`
CompletedChunks int64 `rt:"f.completed_chunks=" json:"completed_chunks"`
FrozenPath string `rt:"f.frozen_path=" json:"frozen_path"`
Priority int64 `rt:"f.priority=" json:"priority"`
IsCreated int64 `rt:"f.is_created=" json:"is_created"`
IsOpen int64 `rt:"f.is_open=" json:"is_open"`
}
type Peer struct {
ID string `rt:"p.id=" json:"id"`
Address string `rt:"p.address=" json:"address"`
Port int64 `rt:"p.port=" json:"port"`
Banned int64 `rt:"p.banned=" json:"banned"`
ClientVersion string `rt:"p.client_version=" json:"client_version"`
CompletedPercent int64 `rt:"p.completed_percent=" json:"completed_percent"`
IsEncrypted int64 `rt:"p.is_encrypted=" json:"is_encrypted"`
IsIncoming int64 `rt:"p.is_incoming=" json:"is_incoming"`
IsObfuscated int64 `rt:"p.is_obfuscated=" json:"is_obfuscated"`
DownloadRate int64 `rt:"p.peer_rate=" json:"down_rate"`
DownloadTotal int64 `rt:"p.peer_total=" json:"down_total"`
UploadRate int64 `rt:"p.up_rate=" json:"up_rate"`
UploadTotal int64 `rt:"p.up_total=" json:"up_total"`
}
type Tracker struct {
ID string `rt:"t.id=" json:"tracker_id"`
ActivityTimeLast int64 `rt:"t.activity_time_last=" json:"activity_time_last"`
ActivityTimeNext int64 `rt:"t.activity_time_next=" json:"activity_time_next"`
CanScrape int64 `rt:"t.can_scrape=" json:"can_scrape"`
IsUsable int64 `rt:"t.is_usable=" json:"t.is_usable"`
IsEnabled int64 `rt:"t.is_enabled=" json:"is_enabled"`
FailedCounter int64 `rt:"t.failed_counter=" json:"failed_counter"`
FailedTimeLast int64 `rt:"t.failed_time_last=" json:"failed_time_last"`
FailedTimeNext int64 `rt:"t.failed_time_next=" json:"failed_time_next"`
LatestEvent string `rt:"t.latest_event=" json:"latest_event"`
IsBusy int64 `rt:"t.is_busy=" json:"is_busy"`
IsOpen int64 `rt:"t.is_open=" json:"is_open"`
Type int64 `rt:"t.type=" json:"type"`
URL string `rt:"t.url=" json:"url"`
}
type System struct {
APIVersion string `rt:"system.api_version" json:"api_version"`
ClientVersion string `rt:"system.client_version" json:"client_version"`
LibraryVersion string `rt:"system.library_version" json:"library_version"`
Hostname string `rt:"system.hostname" json:"hostname"`
PID int64 `rt:"system.pid" json:"pid"`
Time int64 `rt:"system.time_seconds" json:"time_seconds"`
ThrottleGlobalDownTotal int64 `rt:"throttle.global_down.total" json:"throttle_global_down_total"`
ThrottleGlobalUpTotal int64 `rt:"throttle.global_up.total" json:"throttle_global_up_total"`
ThrottleGlobalDownRate int64 `rt:"throttle.global_down.rate" json:"throttle_global_down_rate"`
ThrottleGlobalUpRate int64 `rt:"throttle.global_up.rate" json:"throttle_global_up_rate"`
ThrottleGlobalDownMaxRate int64 `rt:"throttle.global_down.max_rate" json:"throttle_global_down_max_rate"`
ThrottleGlobalUpMaxRate int64 `rt:"throttle.global_up.max_rate" json:"throttle_global_up_max_rate"`
}
type SystemCall struct {
MethodName string `xmlrpc:"methodName" json:"method_name"`
Params interface{} `xmlrpc:"params" json:"params"`
}
type Config struct {
URL string
Transport http.RoundTripper
}
type Rtorrent struct {
client *xmlrpc.Client
}
// Creates a new instance of Rtorrent client
func NewRtorrent(config Config) (*Rtorrent, error) {
xmlrpcClient, err := xmlrpc.NewClient(config.URL, config.Transport)
if err != nil {
return nil, err
}
rtorrent := &Rtorrent{
client: xmlrpcClient,
}
return rtorrent, nil
}
// Closes the underlying XMLRPC client.
func (rt *Rtorrent) Close() error {
err := rt.client.Close()
if err != nil {
return err
}
return nil
}
// Lists available XMLRPC methods
func (rt *Rtorrent) ListMethods() ([]string, error) {
var result []string
err := rt.client.Call("system.listMethods", nil, &result)
if err != nil {
return nil, err
}
return result, nil
}
// Load and start a torrent
func (rt *Rtorrent) LoadRawStart(file []byte) error {
base64 := base64.StdEncoding.EncodeToString(file)
err := rt.client.Call("load.raw_start_verbose", []interface{}{"", xmlrpc.Base64(base64)}, nil)
if err != nil {
return err
}
return nil
}
// Stop torrent with the specified hash
func (rt *Rtorrent) Stop(hash string) error {
err := rt.client.Call("d.stop", hash, nil)
if err != nil {
return err
}
return nil
}
// Start torrent with the specified hash
func (rt *Rtorrent) Start(hash string) error {
err := rt.client.Call("d.start", hash, nil)
if err != nil {
return err
}
return nil
}
// Pause torrent with the specified hash
func (rt *Rtorrent) Pause(hash string) error {
err := rt.client.Call("d.pause", hash, nil)
if err != nil {
return err
}
return nil
}
// Pause torrent with the specified hash
func (rt *Rtorrent) Resume(hash string) error {
err := rt.client.Call("d.resume", hash, nil)
if err != nil {
return err
}
return nil
}
// Pause torrent with the specified hash
func (rt *Rtorrent) CheckHash(hash string) error {
err := rt.client.Call("d.check_hash", hash, nil)
if err != nil {
return err
}
return nil
}
// Erase torrent with the specified hash
func (rt *Rtorrent) Erase(hash string) error {
err := rt.client.Call("d.erase", hash, nil)
if err != nil {
return err
}
return nil
}
// Set torrent priority
func (rt *Rtorrent) Priority(hash string, priority int) error {
if priority < 0 || priority > 3 {
return errors.New("invalid priority")
}
err := rt.client.Call("d.priority.set", []interface{}{hash, priority}, nil)
if err != nil {
return err
}
return nil
}
// Set global down throttle.
func (rt *Rtorrent) GlobalThrottleDown(kilobytes int) error {
kb := strconv.Itoa(kilobytes)
err := rt.client.Call("throttle.global_down.max_rate.set_kb", []interface{}{"", kb}, nil)
if err != nil {
return err
}
return nil
}
// Set global up throttle.
func (rt *Rtorrent) GlobalThrottleUp(kilobytes int) error {
kb := strconv.Itoa(kilobytes)
err := rt.client.Call("throttle.global_up.max_rate.set_kb", []interface{}{"", kb}, nil)
if err != nil {
return err
}
return nil
}
// View multicall.
func (rt *Rtorrent) DMulticall(target string, args interface{}) ([]Torrent, error) {
var result interface{}
err := rt.client.Call("d.multicall2", args, &result)
if err != nil {
return nil, err
}
torrents := multicallTags[Torrent](result, args)
return torrents, nil
}
// File multicall.
func (rt *Rtorrent) FMulticall(args interface{}) ([]File, error) {
var result interface{}
err := rt.client.Call("f.multicall", args, &result)
if err != nil {
return nil, err
}
files := multicallTags[File](result, args)
return files, nil
}
// Peer multicall.
func (rt *Rtorrent) PMulticall(args interface{}) ([]Peer, error) {
var result interface{}
err := rt.client.Call("p.multicall", args, &result)
if err != nil {
return nil, err
}
peers := multicallTags[Peer](result, args)
return peers, nil
}
// Torrent multicall.
func (rt *Rtorrent) TMulticall(args interface{}) ([]Tracker, error) {
var result interface{}
err := rt.client.Call("t.multicall", args, &result)
if err != nil {
return nil, err
}
trackers := multicallTags[Tracker](result, args)
return trackers, nil
}
// System multicall.
func (rt *Rtorrent) SystemMulticall(args interface{}) (System, error) {
var result interface{}
err := rt.client.Call("system.multicall", args, &result)
if err != nil {
return System{}, err
}
system := systemTags(result, args)
return system, nil
}
// Maps XMLRPC result to a struct using fields from args with reflection
func multicallTags[T File | Torrent | Peer | Tracker](result interface{}, args interface{}) []T {
items := make([]T, 0)
for _, outer := range result.([]interface{}) {
item := new(T)
for idx := 2; idx < len(args.([]interface{})); idx++ {
ref := outer.([]interface{})[idx-2]
fname := args.([]interface{})[idx].(string)
vo := reflect.ValueOf(item)
el := vo.Elem()
for i := 0; i < el.NumField(); i++ {
field := el.Type().Field(i)
if fname == field.Tag.Get("rt") {
if ref == nil {
continue
}
el.Field(i).Set(reflect.ValueOf(ref))
}
}
}
items = append(items, *item)
}
return items
}
func systemTags(result interface{}, args interface{}) System {
system := &System{}
r := result.([]interface{})
a := args.([]interface{})
for idx := 0; idx < len(r); idx++ {
ref := r[idx].([]interface{})[0]
fname := a[0].([]interface{})[idx].(SystemCall).MethodName
vo := reflect.ValueOf(system)
el := vo.Elem()
for i := 0; i < el.NumField(); i++ {
field := el.Type().Field(i)
if fname == field.Tag.Get("rt") {
if ref == nil {
continue
}
el.Field(i).Set(reflect.ValueOf(ref))
}
}
}
return *system
}