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