/
sig_handler.go
73 lines (57 loc) · 2.2 KB
/
sig_handler.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
package keeper
import (
"encoding/hex"
"fmt"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/axelarnetwork/axelar-core/utils"
"github.com/axelarnetwork/axelar-core/utils/events"
"github.com/axelarnetwork/axelar-core/x/evm/types"
multisig "github.com/axelarnetwork/axelar-core/x/multisig/exported"
"github.com/axelarnetwork/utils/funcs"
)
type sigHandler struct {
cdc codec.Codec
keeper types.BaseKeeper
}
// NewSigHandler returns the handler for processing signatures delivered by the multisig module
func NewSigHandler(cdc codec.Codec, keeper types.BaseKeeper) multisig.SigHandler {
return sigHandler{
cdc: cdc,
keeper: keeper,
}
}
func (s sigHandler) HandleCompleted(ctx sdk.Context, sig utils.ValidatedProtoMarshaler, moduleMetadata codec.ProtoMarshaler) error {
sigMetadata := moduleMetadata.(*types.SigMetadata)
commandBatch, err := s.getCommandBatch(ctx, sigMetadata)
if err != nil {
return err
}
funcs.MustNoErr(commandBatch.SetSigned(sig))
events.Emit(ctx, types.NewCommandBatchSigned(sigMetadata.Chain, sigMetadata.CommandBatchID))
return nil
}
func (s sigHandler) HandleFailed(ctx sdk.Context, moduleMetadata codec.ProtoMarshaler) error {
sigMetadata := moduleMetadata.(*types.SigMetadata)
commandBatch, err := s.getCommandBatch(ctx, sigMetadata)
if err != nil {
return err
}
ok := commandBatch.SetStatus(types.BatchAborted)
if !ok {
panic(fmt.Errorf("failed to abort command batch %s", hex.EncodeToString(commandBatch.GetID())))
}
events.Emit(ctx, types.NewCommandBatchAborted(sigMetadata.Chain, sigMetadata.CommandBatchID))
return nil
}
func (s sigHandler) getCommandBatch(ctx sdk.Context, sigMetadata *types.SigMetadata) (types.CommandBatch, error) {
ck, err := s.keeper.ForChain(ctx, sigMetadata.Chain)
if err != nil {
return types.CommandBatch{}, fmt.Errorf("chain %s does not exist as an EVM chain", sigMetadata.Chain)
}
commandBatch := ck.GetBatchByID(ctx, sigMetadata.CommandBatchID)
if !commandBatch.Is(types.BatchSigning) {
return types.CommandBatch{}, fmt.Errorf("the command batch %s of chain %s is not being signed", hex.EncodeToString(sigMetadata.CommandBatchID), sigMetadata.Chain)
}
return commandBatch, nil
}