mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-27 05:38:55 +00:00
66 lines
1.7 KiB
Go
66 lines
1.7 KiB
Go
package p2p
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import (
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"bytes"
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"fmt"
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"net/http"
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"strings"
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"github.com/libp2p/go-libp2p-core/host"
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"github.com/libp2p/go-libp2p-core/peer"
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ma "github.com/multiformats/go-multiaddr"
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"github.com/sirupsen/logrus"
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)
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// InfoHandler is a handler to serve /p2p page in metrics.
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func (s *Service) InfoHandler(w http.ResponseWriter, _ *http.Request) {
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buf := new(bytes.Buffer)
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if _, err := fmt.Fprintf(buf, `bootnode=%s
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self=%s
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%d peers
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%v
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`,
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s.cfg.BootstrapNodeAddr,
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selfAddresses(s.host),
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len(s.host.Network().Peers()),
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formatPeers(s.host), // Must be last. Writes one entry per row.
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); err != nil {
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logrus.WithError(err).Error("Failed to render p2p info page")
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return
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}
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w.WriteHeader(http.StatusOK)
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if _, err := w.Write(buf.Bytes()); err != nil {
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log.WithError(err).Error("Failed to render p2p info page")
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}
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}
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// selfAddresses formats the host data into dialable strings, comma separated.
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func selfAddresses(h host.Host) string {
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var addresses []string
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for _, ma := range h.Addrs() {
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addresses = append(addresses, ma.String()+"/p2p/"+h.ID().Pretty())
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}
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return strings.Join(addresses, ",")
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}
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// Format peer list to dialable addresses, separated by new line.
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func formatPeers(h host.Host) string {
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var addresses []string
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for _, pid := range h.Network().Peers() {
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addresses = append(addresses, formatPeer(pid, h.Peerstore().PeerInfo(pid).Addrs))
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}
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return strings.Join(addresses, "\n")
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}
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// Format single peer info to dialable addresses, comma separated.
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func formatPeer(pid peer.ID, ma []ma.Multiaddr) string {
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var addresses []string
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for _, a := range ma {
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addresses = append(addresses, a.String()+"/p2p/"+pid.Pretty())
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}
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return strings.Join(addresses, ",")
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}
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