/
handlers_peers.go
279 lines (256 loc) · 7.92 KB
/
handlers_peers.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
package node
import (
"net/http"
"strconv"
"strings"
"github.com/gorilla/mux"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/pkg/errors"
"github.com/prysmaticlabs/prysm/v4/beacon-chain/p2p"
"github.com/prysmaticlabs/prysm/v4/beacon-chain/p2p/peers"
"github.com/prysmaticlabs/prysm/v4/beacon-chain/p2p/peers/peerdata"
http2 "github.com/prysmaticlabs/prysm/v4/network/http"
"github.com/prysmaticlabs/prysm/v4/proto/migration"
eth "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
"go.opencensus.io/trace"
)
// GetPeer retrieves data about the given peer.
func (s *Server) GetPeer(w http.ResponseWriter, r *http.Request) {
_, span := trace.StartSpan(r.Context(), "node.GetPeer")
defer span.End()
rawId := mux.Vars(r)["peer_id"]
if rawId == "" {
http2.HandleError(w, "peer_id is required in URL params", http.StatusBadRequest)
return
}
peerStatus := s.PeersFetcher.Peers()
id, err := peer.Decode(rawId)
if err != nil {
http2.HandleError(w, "Invalid peer ID: "+err.Error(), http.StatusBadRequest)
return
}
enr, err := peerStatus.ENR(id)
if err != nil {
if errors.Is(err, peerdata.ErrPeerUnknown) {
http2.HandleError(w, "Peer not found: "+err.Error(), http.StatusNotFound)
return
}
http2.HandleError(w, "Could not obtain ENR: "+err.Error(), http.StatusInternalServerError)
return
}
serializedEnr, err := p2p.SerializeENR(enr)
if err != nil {
http2.HandleError(w, "Could not obtain ENR: "+err.Error(), http.StatusInternalServerError)
return
}
p2pAddress, err := peerStatus.Address(id)
if err != nil {
http2.HandleError(w, "Could not obtain address: "+err.Error(), http.StatusInternalServerError)
return
}
state, err := peerStatus.ConnectionState(id)
if err != nil {
http2.HandleError(w, "Could not obtain connection state: "+err.Error(), http.StatusInternalServerError)
return
}
direction, err := peerStatus.Direction(id)
if err != nil {
http2.HandleError(w, "Could not obtain direction: "+err.Error(), http.StatusInternalServerError)
return
}
if eth.PeerDirection(direction) == eth.PeerDirection_UNKNOWN {
http2.HandleError(w, "Peer not found", http.StatusNotFound)
return
}
v1ConnState := migration.V1Alpha1ConnectionStateToV1(eth.ConnectionState(state))
v1PeerDirection, err := migration.V1Alpha1PeerDirectionToV1(eth.PeerDirection(direction))
if err != nil {
http2.HandleError(w, "Could not handle peer direction: "+err.Error(), http.StatusInternalServerError)
return
}
resp := &GetPeerResponse{
Data: &Peer{
PeerId: rawId,
Enr: "enr:" + serializedEnr,
LastSeenP2PAddress: p2pAddress.String(),
State: strings.ToLower(v1ConnState.String()),
Direction: strings.ToLower(v1PeerDirection.String()),
},
}
http2.WriteJson(w, resp)
}
// GetPeers retrieves data about the node's network peers.
func (s *Server) GetPeers(w http.ResponseWriter, r *http.Request) {
_, span := trace.StartSpan(r.Context(), "node.GetPeers")
defer span.End()
states := r.URL.Query()["state"]
directions := r.URL.Query()["direction"]
peerStatus := s.PeersFetcher.Peers()
emptyStateFilter, emptyDirectionFilter := handleEmptyFilters(states, directions)
if emptyStateFilter && emptyDirectionFilter {
allIds := peerStatus.All()
allPeers := make([]*Peer, 0, len(allIds))
for _, id := range allIds {
p, err := peerInfo(peerStatus, id)
if err != nil {
http2.HandleError(w, "Could not get peer info: "+err.Error(), http.StatusInternalServerError)
return
}
if p == nil {
continue
}
allPeers = append(allPeers, p)
}
resp := &GetPeersResponse{Data: allPeers}
http2.WriteJson(w, resp)
return
}
var stateIds []peer.ID
if emptyStateFilter {
stateIds = peerStatus.All()
} else {
for _, stateFilter := range states {
switch strings.ToUpper(stateFilter) {
case stateConnecting:
ids := peerStatus.Connecting()
stateIds = append(stateIds, ids...)
case stateConnected:
ids := peerStatus.Connected()
stateIds = append(stateIds, ids...)
case stateDisconnecting:
ids := peerStatus.Disconnecting()
stateIds = append(stateIds, ids...)
case stateDisconnected:
ids := peerStatus.Disconnected()
stateIds = append(stateIds, ids...)
}
}
}
var directionIds []peer.ID
if emptyDirectionFilter {
directionIds = peerStatus.All()
} else {
for _, directionFilter := range directions {
switch strings.ToUpper(directionFilter) {
case directionInbound:
ids := peerStatus.Inbound()
directionIds = append(directionIds, ids...)
case directionOutbound:
ids := peerStatus.Outbound()
directionIds = append(directionIds, ids...)
}
}
}
var filteredIds []peer.ID
for _, stateId := range stateIds {
for _, directionId := range directionIds {
if stateId.String() == directionId.String() {
filteredIds = append(filteredIds, stateId)
break
}
}
}
filteredPeers := make([]*Peer, 0, len(filteredIds))
for _, id := range filteredIds {
p, err := peerInfo(peerStatus, id)
if err != nil {
http2.HandleError(w, "Could not get peer info: "+err.Error(), http.StatusInternalServerError)
return
}
if p == nil {
continue
}
filteredPeers = append(filteredPeers, p)
}
resp := &GetPeersResponse{Data: filteredPeers}
http2.WriteJson(w, resp)
}
// GetPeerCount retrieves number of known peers.
func (s *Server) GetPeerCount(w http.ResponseWriter, r *http.Request) {
_, span := trace.StartSpan(r.Context(), "node.PeerCount")
defer span.End()
peerStatus := s.PeersFetcher.Peers()
resp := &GetPeerCountResponse{
Data: &PeerCount{
Disconnected: strconv.FormatInt(int64(len(peerStatus.Disconnected())), 10),
Connecting: strconv.FormatInt(int64(len(peerStatus.Connecting())), 10),
Connected: strconv.FormatInt(int64(len(peerStatus.Connected())), 10),
Disconnecting: strconv.FormatInt(int64(len(peerStatus.Disconnecting())), 10),
},
}
http2.WriteJson(w, resp)
}
func handleEmptyFilters(states []string, directions []string) (emptyState, emptyDirection bool) {
emptyState = true
for _, stateFilter := range states {
normalized := strings.ToUpper(stateFilter)
filterValid := normalized == stateConnecting || normalized == stateConnected ||
normalized == stateDisconnecting || normalized == stateDisconnected
if filterValid {
emptyState = false
break
}
}
emptyDirection = true
for _, directionFilter := range directions {
normalized := strings.ToUpper(directionFilter)
filterValid := normalized == directionInbound || normalized == directionOutbound
if filterValid {
emptyDirection = false
break
}
}
return emptyState, emptyDirection
}
func peerInfo(peerStatus *peers.Status, id peer.ID) (*Peer, error) {
enr, err := peerStatus.ENR(id)
if err != nil {
if errors.Is(err, peerdata.ErrPeerUnknown) {
return nil, nil
}
return nil, errors.Wrap(err, "could not obtain ENR")
}
var serializedEnr string
if enr != nil {
serializedEnr, err = p2p.SerializeENR(enr)
if err != nil {
return nil, errors.Wrap(err, "could not serialize ENR")
}
}
address, err := peerStatus.Address(id)
if err != nil {
if errors.Is(err, peerdata.ErrPeerUnknown) {
return nil, nil
}
return nil, errors.Wrap(err, "could not obtain address")
}
connectionState, err := peerStatus.ConnectionState(id)
if err != nil {
if errors.Is(err, peerdata.ErrPeerUnknown) {
return nil, nil
}
return nil, errors.Wrap(err, "could not obtain connection state")
}
direction, err := peerStatus.Direction(id)
if err != nil {
if errors.Is(err, peerdata.ErrPeerUnknown) {
return nil, nil
}
return nil, errors.Wrap(err, "could not obtain direction")
}
if eth.PeerDirection(direction) == eth.PeerDirection_UNKNOWN {
return nil, nil
}
p := &Peer{
PeerId: id.String(),
State: strings.ToLower(eth.ConnectionState(connectionState).String()),
Direction: strings.ToLower(eth.PeerDirection(direction).String()),
}
if address != nil {
p.LastSeenP2PAddress = address.String()
}
if serializedEnr != "" {
p.Enr = "enr:" + serializedEnr
}
return p, nil
}