status-go/vendor/github.com/anacrolix/torrent/webtorrent/tracker-protocol.go

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2022-03-10 09:44:48 +00:00
package webtorrent
import (
"fmt"
"math"
"github.com/pion/webrtc/v3"
)
type AnnounceRequest struct {
Numwant int `json:"numwant"`
Uploaded int64 `json:"uploaded"`
Downloaded int64 `json:"downloaded"`
Left int64 `json:"left"`
Event string `json:"event,omitempty"`
Action string `json:"action"`
InfoHash string `json:"info_hash"`
PeerID string `json:"peer_id"`
Offers []Offer `json:"offers"`
}
type Offer struct {
OfferID string `json:"offer_id"`
Offer webrtc.SessionDescription `json:"offer"`
}
type AnnounceResponse struct {
InfoHash string `json:"info_hash"`
Action string `json:"action"`
Interval *int `json:"interval,omitempty"`
Complete *int `json:"complete,omitempty"`
Incomplete *int `json:"incomplete,omitempty"`
PeerID string `json:"peer_id,omitempty"`
ToPeerID string `json:"to_peer_id,omitempty"`
Answer *webrtc.SessionDescription `json:"answer,omitempty"`
Offer *webrtc.SessionDescription `json:"offer,omitempty"`
OfferID string `json:"offer_id,omitempty"`
}
// I wonder if this is a defacto standard way to decode bytes to JSON for webtorrent. I don't really
// care.
func binaryToJsonString(b []byte) string {
var seq []rune
for _, v := range b {
seq = append(seq, rune(v))
}
return string(seq)
}
func jsonStringToInfoHash(s string) (ih [20]byte, err error) {
b, err := decodeJsonByteString(s, ih[:0])
if err != nil {
return
}
if len(b) != len(ih) {
err = fmt.Errorf("string decoded to %v bytes", len(b))
}
return
}
func decodeJsonByteString(s string, b []byte) ([]byte, error) {
defer func() {
r := recover()
if r == nil {
return
}
panic(fmt.Sprintf("%q", s))
}()
for _, c := range []rune(s) {
if c < 0 || c > math.MaxUint8 {
return b, fmt.Errorf("rune out of bounds: %v", c)
}
b = append(b, byte(c))
}
return b, nil
}