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
package node
import (
"context"
"fmt"
"github.com/ethereum-optimism/optimism/op-bindings/predeploys"
"github.com/ethereum-optimism/optimism/op-node/eth"
"github.com/ethereum-optimism/optimism/op-node/metrics"
"github.com/ethereum-optimism/optimism/op-node/rollup"
"github.com/ethereum-optimism/optimism/op-node/version"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/rpc"
)
type l2EthClient interface {
InfoByRpcNumber(ctx context.Context, num rpc.BlockNumber) (eth.BlockInfo, error)
// GetProof returns a proof of the account, it may return a nil result without error if the address was not found.
GetProof(ctx context.Context, address common.Address, blockTag string) (*eth.AccountResult, error)
}
type driverClient interface {
SyncStatus(ctx context.Context) (*eth.SyncStatus, error)
ResetDerivationPipeline(context.Context) error
}
type adminAPI struct {
dr driverClient
m *metrics.Metrics
}
func newAdminAPI(dr driverClient, m *metrics.Metrics) *adminAPI {
return &adminAPI{
dr: dr,
m: m,
}
}
func (n *adminAPI) ResetDerivationPipeline(ctx context.Context) error {
recordDur := n.m.RecordRPCServerRequest("admin_resetDerivationPipeline")
defer recordDur()
return n.dr.ResetDerivationPipeline(ctx)
}
type nodeAPI struct {
config *rollup.Config
client l2EthClient
dr driverClient
log log.Logger
m *metrics.Metrics
}
func newNodeAPI(config *rollup.Config, l2Client l2EthClient, dr driverClient, log log.Logger, m *metrics.Metrics) *nodeAPI {
return &nodeAPI{
config: config,
client: l2Client,
dr: dr,
log: log,
m: m,
}
}
func (n *nodeAPI) OutputAtBlock(ctx context.Context, number rpc.BlockNumber) ([]eth.Bytes32, error) {
recordDur := n.m.RecordRPCServerRequest("optimism_outputAtBlock")
defer recordDur()
// TODO: rpc.BlockNumber doesn't support the "safe" tag. Need a new type
head, err := n.client.InfoByRpcNumber(ctx, number)
if err != nil {
n.log.Error("failed to get block", "err", err)
return nil, err
}
if head == nil {
return nil, ethereum.NotFound
}
proof, err := n.client.GetProof(ctx, predeploys.L2ToL1MessagePasserAddr, toBlockNumArg(number))
if err != nil {
n.log.Error("failed to get contract proof", "err", err)
return nil, err
}
if proof == nil {
return nil, ethereum.NotFound
}
// make sure that the proof (including storage hash) that we retrieved is correct by verifying it against the state-root
if err := proof.Verify(head.Root()); err != nil {
n.log.Error("invalid withdrawal root detected in block", "stateRoot", head.Root(), "blocknum", number, "msg", err)
return nil, fmt.Errorf("invalid withdrawal root hash")
}
var l2OutputRootVersion eth.Bytes32 // it's zero for now
l2OutputRoot := rollup.ComputeL2OutputRoot(l2OutputRootVersion, head.Hash(), head.Root(), proof.StorageHash)
return []eth.Bytes32{l2OutputRootVersion, l2OutputRoot}, nil
}
func (n *nodeAPI) SyncStatus(ctx context.Context) (*eth.SyncStatus, error) {
recordDur := n.m.RecordRPCServerRequest("optimism_syncStatus")
defer recordDur()
return n.dr.SyncStatus(ctx)
}
func (n *nodeAPI) RollupConfig(_ context.Context) (*rollup.Config, error) {
recordDur := n.m.RecordRPCServerRequest("optimism_rollupConfig")
defer recordDur()
return n.config, nil
}
func (n *nodeAPI) Version(ctx context.Context) (string, error) {
recordDur := n.m.RecordRPCServerRequest("optimism_version")
defer recordDur()
return version.Version + "-" + version.Meta, nil
}
func toBlockNumArg(number rpc.BlockNumber) string {
// never returns an error
out, _ := number.MarshalText()
return string(out)
}