/
server.go
177 lines (149 loc) · 4.22 KB
/
server.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
package mesh256
import (
"context"
"os"
"sync"
"time"
"github.com/brendoncarroll/go-p2p"
"github.com/brendoncarroll/go-p2p/s/memswarm"
"github.com/brendoncarroll/go-p2p/s/multiswarm"
"github.com/inet256/inet256/pkg/inet256"
"github.com/inet256/inet256/pkg/peers"
"github.com/pkg/errors"
"golang.org/x/exp/slog"
)
const nameMemSwarm = "memory"
type Service interface {
inet256.Service
MainAddr() (Addr, error)
TransportAddrs() ([]p2p.Addr, error)
PeerStatus() ([]PeerStatus, error)
}
type PeerStatus struct {
Addr Addr
LastSeen map[string]time.Time
Uploaded uint64
Downloaded uint64
}
type Params NodeParams
type Server struct {
params Params
memrealm *memswarm.Realm
mainID inet256.Addr
mainMemPeers peers.Store[multiswarm.Addr]
mainMemSwarm *memswarm.Swarm
mainNode Node
mu sync.Mutex
nodes map[inet256.Addr]*node
log slog.Logger
}
func NewServer(params Params) *Server {
r := memswarm.NewRealm()
msw := r.NewSwarmWithKey(params.PrivateKey.BuiltIn())
if params.Swarms == nil {
params.Swarms = make(map[string]multiswarm.DynSwarm, 1)
}
params.Swarms[nameMemSwarm] = multiswarm.WrapSecureSwarm[memswarm.Addr](msw)
memPeers := peers.NewStore[TransportAddr]()
s := &Server{
params: params,
memrealm: r,
mainID: inet256.NewAddr(params.PrivateKey.Public()),
mainMemPeers: memPeers,
mainMemSwarm: msw,
mainNode: NewNode(NodeParams{
PrivateKey: params.PrivateKey,
Swarms: params.Swarms,
NewNetwork: params.NewNetwork,
Peers: peers.ChainStore[TransportAddr]{memPeers, params.Peers},
}),
nodes: make(map[inet256.Addr]*node),
log: slog.New(slog.NewTextHandler(os.Stderr)),
}
return s
}
func (s *Server) Open(ctx context.Context, privateKey inet256.PrivateKey, opts ...inet256.NodeOption) (Node, error) {
id := inet256.NewAddr(privateKey.Public())
if id == s.mainID {
return nil, errors.Errorf("clients cannot use main node's key")
}
s.mu.Lock()
defer s.mu.Unlock()
if _, exists := s.nodes[id]; exists {
return nil, errors.New("node is already open")
}
swarm := s.memrealm.NewSwarmWithKey(privateKey.BuiltIn())
ps := peers.NewStore[TransportAddr]()
ps.Add(s.mainID)
ps.SetAddrs(s.mainID, []multiswarm.Addr{{Scheme: nameMemSwarm, Addr: s.mainMemSwarm.LocalAddrs()[0]}})
s.mainMemPeers.Add(id)
s.mainMemPeers.SetAddrs(id, []multiswarm.Addr{{Scheme: nameMemSwarm, Addr: swarm.LocalAddrs()[0]}})
n := NewNode(NodeParams{
NewNetwork: s.params.NewNetwork,
Peers: ps,
PrivateKey: privateKey,
Swarms: map[string]multiswarm.DynSwarm{
nameMemSwarm: multiswarm.WrapSecureSwarm[memswarm.Addr](swarm),
},
})
s.nodes[id] = n.(*node)
s.log.With(slog.Any("addr", id)).Info("created node")
return n, nil
}
func (s *Server) Drop(ctx context.Context, privateKey inet256.PrivateKey) error {
id := inet256.NewAddr(privateKey.Public())
s.mu.Lock()
defer s.mu.Unlock()
n, exists := s.nodes[id]
if !exists {
return nil
}
err := n.Close()
delete(s.nodes, id)
return err
}
func (s *Server) LookupPublicKey(ctx context.Context, target Addr) (inet256.PublicKey, error) {
return s.mainNode.LookupPublicKey(ctx, target)
}
func (s *Server) MTU(ctx context.Context, target Addr) int {
return s.mainNode.MTU(ctx, target)
}
func (s *Server) FindAddr(ctx context.Context, prefix []byte, nbits int) (Addr, error) {
return s.mainNode.FindAddr(ctx, prefix, nbits)
}
func (s *Server) LocalAddr() Addr {
return s.mainNode.LocalAddr()
}
func (s *Server) TransportAddrs() ([]multiswarm.Addr, error) {
return s.mainNode.(*node).TransportAddrs(), nil
}
func (s *Server) PeerStatus() ([]PeerStatus, error) {
var ret []PeerStatus
mainNode := s.mainNode.(*node)
for _, id := range s.params.Peers.ListPeers() {
lastSeen := mainNode.LastSeen(id)
ret = append(ret, PeerStatus{
Addr: id,
LastSeen: lastSeen,
Uploaded: mainNode.basePeerSwarm.GetTx(id),
Downloaded: mainNode.basePeerSwarm.GetRx(id),
})
}
return ret, nil
}
func (s *Server) MainAddr() (Addr, error) {
return s.MainNode().LocalAddr(), nil
}
func (s *Server) MainNode() Node {
return s.mainNode
}
func (s *Server) Close() error {
s.mu.Lock()
defer s.mu.Unlock()
for _, n := range s.nodes {
n.Close()
}
s.nodes = make(map[inet256.Addr]*node)
s.mainNode.Close()
return nil
}