78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
package tracker
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import (
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"context"
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"errors"
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"net/http"
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"net/url"
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"time"
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"github.com/anacrolix/dht/v2/krpc"
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trHttp "github.com/anacrolix/torrent/tracker/http"
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"github.com/anacrolix/torrent/tracker/shared"
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"github.com/anacrolix/torrent/tracker/udp"
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)
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const (
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None = shared.None
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Started = shared.Started
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Stopped = shared.Stopped
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Completed = shared.Completed
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)
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type AnnounceRequest = udp.AnnounceRequest
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type AnnounceResponse = trHttp.AnnounceResponse
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type Peer = trHttp.Peer
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type AnnounceEvent = udp.AnnounceEvent
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var ErrBadScheme = errors.New("unknown scheme")
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type Announce struct {
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TrackerUrl string
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Request AnnounceRequest
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HostHeader string
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HTTPProxy func(*http.Request) (*url.URL, error)
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ServerName string
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UserAgent string
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UdpNetwork string
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// If the port is zero, it's assumed to be the same as the Request.Port.
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ClientIp4 krpc.NodeAddr
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// If the port is zero, it's assumed to be the same as the Request.Port.
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ClientIp6 krpc.NodeAddr
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Context context.Context
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}
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// The code *is* the documentation.
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const DefaultTrackerAnnounceTimeout = 15 * time.Second
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func (me Announce) Do() (res AnnounceResponse, err error) {
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cl, err := NewClient(me.TrackerUrl, NewClientOpts{
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Http: trHttp.NewClientOpts{
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Proxy: me.HTTPProxy,
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ServerName: me.ServerName,
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},
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UdpNetwork: me.UdpNetwork,
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})
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if err != nil {
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return
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}
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defer cl.Close()
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if me.Context == nil {
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// This is just to maintain the old behaviour that should be a timeout of 15s. Users can
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// override it by providing their own Context. See comments elsewhere about longer timeouts
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// acting as rate limiting overloaded trackers.
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ctx, cancel := context.WithTimeout(context.Background(), DefaultTrackerAnnounceTimeout)
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defer cancel()
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me.Context = ctx
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}
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return cl.Announce(me.Context, me.Request, trHttp.AnnounceOpt{
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UserAgent: me.UserAgent,
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HostHeader: me.HostHeader,
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ClientIp4: me.ClientIp4.IP,
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ClientIp6: me.ClientIp6.IP,
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})
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}
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