76 lines
1.5 KiB
Go
76 lines
1.5 KiB
Go
package tracker
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import (
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"errors"
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"net"
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"net/url"
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)
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type AnnounceRequest struct {
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InfoHash [20]byte
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PeerId [20]byte
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Downloaded int64
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Left int64
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Uploaded int64
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Event AnnounceEvent
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IPAddress int32
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Key int32
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NumWant int32 // How many peer addresses are desired. -1 for default.
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Port int16
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}
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type AnnounceResponse struct {
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Interval int32 // Minimum seconds the local peer should wait before next announce.
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Leechers int32
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Seeders int32
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Peers []Peer
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}
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type AnnounceEvent int32
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type Peer struct {
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IP net.IP
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Port int
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}
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const (
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None AnnounceEvent = iota
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Completed // The local peer just completed the torrent.
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Started // The local peer has just resumed this torrent.
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Stopped // The local peer is leaving the swarm.
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)
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type Client interface {
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// Returns ErrNotConnected if Connect needs to be called.
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Announce(*AnnounceRequest) (AnnounceResponse, error)
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Connect() error
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String() string
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URL() string
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}
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var (
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ErrNotConnected = errors.New("not connected")
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ErrBadScheme = errors.New("unknown scheme")
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schemes = make(map[string]func(*url.URL) Client)
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)
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func RegisterClientScheme(scheme string, newFunc func(*url.URL) Client) {
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schemes[scheme] = newFunc
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}
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// Returns ErrBadScheme if the tracker scheme isn't recognised.
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func New(rawurl string) (cl Client, err error) {
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url_s, err := url.Parse(rawurl)
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if err != nil {
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return
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}
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newFunc, ok := schemes[url_s.Scheme]
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if !ok {
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err = ErrBadScheme
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return
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}
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cl = newFunc(url_s)
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return
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}
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