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peers.go
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peers.go
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package api
import (
"context"
"fmt"
"time"
"github.com/pkg/errors"
"github.com/wavesplatform/gowaves/pkg/p2p/peer"
"github.com/wavesplatform/gowaves/pkg/proto"
"github.com/wavesplatform/gowaves/pkg/util/common"
"go.uber.org/zap"
)
type Peer struct {
Address string `json:"address"`
LastSeen uint64 `json:"lastSeen,omitempty"`
}
type PeersKnown struct {
Peers []Peer `json:"peers"`
}
// PeersAll is a list of all known not banned, not suspended and not black listed peers with a publicly available declared address
func (a *App) PeersAll() (PeersKnown, error) {
suspended := a.peers.Suspended()
blackList := a.peers.BlackList()
restrictedIPsMap := make(map[string]struct{}, len(suspended)+len(blackList))
for _, suspendedPeer := range suspended {
restrictedIPsMap[suspendedPeer.IP.String()] = struct{}{}
}
for _, blackListedPeer := range blackList {
restrictedIPsMap[blackListedPeer.IP.String()] = struct{}{}
}
knownPeers := a.peers.KnownPeers()
nowMillis := common.UnixMillisFromTime(time.Now())
out := make([]Peer, 0, len(knownPeers))
for _, knownPeer := range knownPeers {
ip := knownPeer.String()
if _, in := restrictedIPsMap[ip]; in {
continue
}
// FIXME(nickeksov): add normal lastSeen field
out = append(out, Peer{
Address: "/" + ip,
LastSeen: uint64(nowMillis),
})
}
return PeersKnown{Peers: out}, nil
}
func (a *App) PeersKnown() (PeersKnown, error) {
knownPeers := a.peers.KnownPeers()
out := make([]Peer, 0, len(knownPeers))
for _, knownPeer := range knownPeers {
// nickeksov: knownPeers without lastSeen field
out = append(out, Peer{Address: knownPeer.String()})
}
return PeersKnown{Peers: out}, nil
}
type PeersConnectResponse struct {
Hostname string `json:"hostname"`
Status string `json:"status"`
}
func (a *App) PeersConnect(ctx context.Context, apiKey string, addr string) (*PeersConnectResponse, error) {
err := a.checkAuth(apiKey)
if err != nil {
return nil, err
}
d := proto.NewTCPAddrFromString(addr)
if d.Empty() {
zap.S().Errorf("Invalid peer's address to connect '%s'", addr)
return nil, &BadRequestError{errors.New("invalid address")}
}
err = a.peers.Connect(ctx, d)
if err != nil {
return nil, &BadRequestError{err}
}
return &PeersConnectResponse{
Hostname: d.String(),
Status: "Trying to connect",
}, nil
}
type PeersConnectedResponse struct {
Peers []PeerInfo `json:"peers"`
}
type PeerInfo struct {
Address string `json:"address"`
DeclaredAddress string `json:"declaredAddress"`
PeerName string `json:"peerName"`
PeerNonce uint64 `json:"peerNonce"`
ApplicationName string `json:"applicationName"`
ApplicationVersion string `json:"applicationVersion"`
}
func peerInfoFromPeer(peer peer.Peer) PeerInfo {
handshake := peer.Handshake()
declaredAddrStr := "N/A"
if !handshake.DeclaredAddr.Empty() {
declaredAddrStr = handshake.DeclaredAddr.String()
}
return PeerInfo{
Address: "/" + peer.RemoteAddr().String(),
DeclaredAddress: "/" + declaredAddrStr,
PeerName: handshake.NodeName,
PeerNonce: handshake.NodeNonce,
ApplicationName: handshake.AppName,
ApplicationVersion: handshake.Version.String(),
}
}
func (a *App) PeersConnected() PeersConnectedResponse {
var out []PeerInfo
a.peers.EachConnected(func(peer peer.Peer, _ *proto.Score) {
out = append(out, peerInfoFromPeer(peer))
})
return PeersConnectedResponse{
Peers: out,
}
}
type RestrictedPeerInfo struct {
Hostname string `json:"hostname"`
Timestamp int64 `json:"timestamp"` // nickeskov: timestamp in millis
Reason string `json:"reason,omitempty"`
}
func (a *App) PeersSuspended() []RestrictedPeerInfo {
suspended := a.peers.Suspended()
out := make([]RestrictedPeerInfo, 0, len(suspended))
for _, p := range suspended {
out = append(out, RestrictedPeerInfo{
Hostname: "/" + p.IP.String(),
Timestamp: p.RestrictTimestampMillis,
Reason: p.Reason,
})
}
return out
}
func (a *App) PeersBlackListed() []RestrictedPeerInfo {
blackList := a.peers.BlackList()
out := make([]RestrictedPeerInfo, 0, len(blackList))
for _, p := range blackList {
out = append(out, RestrictedPeerInfo{
Hostname: "/" + p.IP.String(),
Timestamp: p.RestrictTimestampMillis,
Reason: p.Reason,
})
}
return out
}
type PeersClearBlackListResponse struct {
Result string `json:"result"`
}
func (a *App) PeersClearBlackList() PeersClearBlackListResponse {
resp := PeersClearBlackListResponse{}
if err := a.peers.ClearBlackList(); err != nil {
resp.Result = fmt.Sprintf("failed to clear blacklist: %s", err.Error())
} else {
resp.Result = "blacklist cleared"
}
return resp
}
type PeersSpawnedResponse struct {
Peers []proto.IpPort `json:"peers"`
}
func (a *App) PeersSpawned() PeersSpawnedResponse {
rs := a.peers.Spawned()
return PeersSpawnedResponse{Peers: rs}
}