-
Notifications
You must be signed in to change notification settings - Fork 101
/
import_execution_header.go
170 lines (139 loc) · 4.99 KB
/
import_execution_header.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
package cmd
import (
"fmt"
"io/ioutil"
"strings"
"github.com/snowfork/snowbridge/relayer/chain/parachain"
"github.com/snowfork/snowbridge/relayer/crypto/sr25519"
"github.com/snowfork/snowbridge/relayer/relays/beacon/cache"
"github.com/snowfork/snowbridge/relayer/relays/beacon/config"
"github.com/snowfork/snowbridge/relayer/relays/beacon/header/syncer"
"github.com/snowfork/snowbridge/relayer/relays/beacon/header/syncer/api"
"github.com/snowfork/snowbridge/relayer/relays/beacon/protocol"
"github.com/snowfork/snowbridge/relayer/relays/beacon/store"
"github.com/ethereum/go-ethereum/common"
log "github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"golang.org/x/sync/errgroup"
)
func importExecutionHeaderCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "import-execution-header",
Short: "Import the provided execution header.",
Args: cobra.ExactArgs(0),
RunE: importExecutionHeaderFn,
}
cmd.Flags().String("beacon-header", "", "Beacon header hash whose execution header will be imported")
err := cmd.MarkFlagRequired("beacon-header")
if err != nil {
return nil
}
cmd.Flags().String("finalized-header", "", "Finalized header to prove execution header against")
err = cmd.MarkFlagRequired("finalized-header")
if err != nil {
return nil
}
cmd.Flags().String("parachain-endpoint", "", "Parachain API URL")
err = cmd.MarkFlagRequired("parachain-endpoint")
if err != nil {
return nil
}
cmd.Flags().String("lodestar-endpoint", "", "Lodestar API URL")
err = cmd.MarkFlagRequired("lodestar-endpoint")
if err != nil {
return nil
}
cmd.Flags().String("private-key-file", "", "File containing the private key for the relayer")
err = cmd.MarkFlagRequired("private-key-file")
if err != nil {
return nil
}
cmd.Flags().String("network", "", "Network name: valid values are mainnet, goerli, local")
err = cmd.MarkFlagRequired("network")
if err != nil {
return nil
}
return cmd
}
func importExecutionHeaderFn(cmd *cobra.Command, _ []string) error {
err := func() error {
ctx := cmd.Context()
eg, ctx := errgroup.WithContext(ctx)
parachainEndpoint, _ := cmd.Flags().GetString("parachain-endpoint")
privateKeyFile, _ := cmd.Flags().GetString("private-key-file")
lodestarEndpoint, _ := cmd.Flags().GetString("lodestar-endpoint")
beaconHeader, _ := cmd.Flags().GetString("beacon-header")
finalizedHeader, _ := cmd.Flags().GetString("finalized-header")
viper.SetConfigFile("web/packages/test/config/beacon-relay.json")
if err := viper.ReadInConfig(); err != nil {
return err
}
var conf config.Config
err := viper.Unmarshal(&conf)
if err != nil {
return err
}
keypair, err := getKeyPair(privateKeyFile)
if err != nil {
return fmt.Errorf("get keypair from file: %w", err)
}
paraconn := parachain.NewConnection(parachainEndpoint, keypair.AsKeyringPair())
err = paraconn.Connect(ctx)
if err != nil {
return fmt.Errorf("connect to parachain: %w", err)
}
writer := parachain.NewParachainWriter(paraconn, 8, 8)
err = writer.Start(ctx, eg)
if err != nil {
return fmt.Errorf("start parachain conn: %w", err)
}
log.WithField("hash", beaconHeader).Info("will be syncing execution header for beacon hash")
p := protocol.New(conf.Source.Beacon.Spec)
store := store.New(conf.Source.Beacon.DataStore.Location, conf.Source.Beacon.DataStore.MaxEntries, *p)
store.Connect()
defer store.Close()
client := api.NewBeaconClient(lodestarEndpoint)
syncer := syncer.New(client, &store, p)
beaconHeaderHash := common.HexToHash(finalizedHeader)
finalizedUpdate, err := syncer.GetFinalizedUpdate()
err = writer.WriteToParachainAndWatch(ctx, "EthereumBeaconClient.import_finalized_header", finalizedUpdate.Payload)
if err != nil {
return fmt.Errorf("write to parachain: %w", err)
}
log.Info("imported finalized header")
checkpoint := cache.Proof{
FinalizedBlockRoot: finalizedUpdate.FinalizedHeaderBlockRoot,
BlockRootsTree: finalizedUpdate.BlockRootsTree,
Slot: uint64(finalizedUpdate.Payload.FinalizedHeader.Slot),
}
update, err := syncer.GetHeaderUpdate(beaconHeaderHash, &checkpoint)
if err != nil {
return fmt.Errorf("get header update: %w", err)
}
log.WithField("slot", update.Header.Slot).Info("found block at slot")
err = writer.WriteToParachainAndWatch(ctx, "EthereumBeaconClient.import_execution_header", update)
if err != nil {
return fmt.Errorf("write to parachain: %w", err)
}
log.Info("imported execution header")
return nil
}()
if err != nil {
log.WithError(err).Error("error importing execution header")
}
return nil
}
func getKeyPair(privateKeyFile string) (*sr25519.Keypair, error) {
var cleanedKeyURI string
content, err := ioutil.ReadFile(privateKeyFile)
if err != nil {
return nil, fmt.Errorf("cannot read key file: %w", err)
}
cleanedKeyURI = strings.TrimSpace(string(content))
keypair, err := sr25519.NewKeypairFromSeed(cleanedKeyURI, 42)
if err != nil {
return nil, fmt.Errorf("parse private key URI: %w", err)
}
return keypair, nil
}