-
Notifications
You must be signed in to change notification settings - Fork 179
/
proposal_handler.go
194 lines (166 loc) · 6.98 KB
/
proposal_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
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
package params
import (
"fmt"
"math"
"time"
sdk "github.com/okex/exchain/libs/cosmos-sdk/types"
sdkerrors "github.com/okex/exchain/libs/cosmos-sdk/types/errors"
sdkparams "github.com/okex/exchain/libs/cosmos-sdk/x/params"
"github.com/okex/exchain/x/common"
govtypes "github.com/okex/exchain/x/gov/types"
"github.com/okex/exchain/x/params/types"
)
// NewParamChangeProposalHandler returns the rollback function of the param proposal handler
func NewParamChangeProposalHandler(k *Keeper) govtypes.Handler {
return func(ctx sdk.Context, proposal *govtypes.Proposal) sdk.Error {
switch c := proposal.Content.(type) {
case types.ParameterChangeProposal:
return handleParameterChangeProposal(ctx, k, proposal)
default:
return common.ErrUnknownProposalType(DefaultCodespace, fmt.Sprintf("%T", c))
}
}
}
func handleParameterChangeProposal(ctx sdk.Context, k *Keeper, proposal *govtypes.Proposal) sdk.Error {
logger := ctx.Logger().With("module", ModuleName)
logger.Info("Execute ParameterProposal begin")
paramProposal := proposal.Content.(types.ParameterChangeProposal)
curHeight := uint64(ctx.BlockHeight())
if paramProposal.Height > curHeight {
k.gk.InsertWaitingProposalQueue(ctx, paramProposal.Height, proposal.ProposalID)
return nil
}
defer k.gk.RemoveFromWaitingProposalQueue(ctx, paramProposal.Height, proposal.ProposalID)
return changeParams(ctx, k, paramProposal)
}
func changeParams(ctx sdk.Context, k *Keeper, paramProposal types.ParameterChangeProposal) sdk.Error {
defer k.signalUpdate()
for _, c := range paramProposal.Changes {
ss, ok := k.GetSubspace(c.Subspace)
if !ok {
return sdkerrors.Wrap(sdkparams.ErrUnknownSubspace, c.Subspace)
}
err := ss.Update(ctx, []byte(c.Key), []byte(c.Value))
if err != nil {
return sdkerrors.Wrap(sdkparams.ErrSettingParameter, err.Error())
}
}
return nil
}
func (k *Keeper) RegisterSignal(handler func()) {
k.signals = append(k.signals, handler)
}
func (k *Keeper) signalUpdate() {
for i, _ := range k.signals {
k.signals[i]()
}
}
func checkDenom(paramProposal types.ParameterChangeProposal) sdk.Error {
for _, c := range paramProposal.Changes {
if c.Subspace == "evm" && c.Key == "EVMDenom" {
return sdkerrors.Wrap(sdkparams.ErrSettingParameter, "evm denom can not be reset")
}
if c.Subspace == "staking" && c.Key == "BondDenom" {
return sdkerrors.Wrap(sdkparams.ErrSettingParameter, "staking bond denom can not be reset")
}
}
return nil
}
// GetMinDeposit implements ProposalHandler interface
func (keeper Keeper) GetMinDeposit(ctx sdk.Context, content govtypes.Content) (minDeposit sdk.SysCoins) {
switch content.(type) {
case types.ParameterChangeProposal, types.UpgradeProposal:
minDeposit = keeper.GetParams(ctx).MinDeposit
}
return
}
// GetMaxDepositPeriod implements ProposalHandler interface
func (keeper Keeper) GetMaxDepositPeriod(ctx sdk.Context, content govtypes.Content) (maxDepositPeriod time.Duration) {
switch content.(type) {
case types.ParameterChangeProposal, types.UpgradeProposal:
maxDepositPeriod = keeper.GetParams(ctx).MaxDepositPeriod
}
return
}
// GetVotingPeriod implements ProposalHandler interface
func (keeper Keeper) GetVotingPeriod(ctx sdk.Context, content govtypes.Content) (votingPeriod time.Duration) {
switch content.(type) {
case types.ParameterChangeProposal, types.UpgradeProposal:
votingPeriod = keeper.GetParams(ctx).VotingPeriod
}
return
}
// CheckMsgSubmitProposal implements ProposalHandler interface
func (keeper Keeper) CheckMsgSubmitProposal(ctx sdk.Context, msg govtypes.MsgSubmitProposal) sdk.Error {
switch proposal := msg.Content.(type) {
case types.ParameterChangeProposal:
return keeper.checkSubmitParamsChangeProposal(ctx, msg.Proposer, msg.InitialDeposit, proposal)
case types.UpgradeProposal:
return keeper.checkSubmitUpgradeProposal(ctx, msg.Proposer, msg.InitialDeposit, proposal)
default:
return common.ErrUnknownProposalType(DefaultCodespace, fmt.Sprintf("%T", proposal))
}
}
func (keeper Keeper) checkSubmitParamsChangeProposal(ctx sdk.Context, proposer sdk.AccAddress, initialDeposit sdk.SysCoins, paramsChangeProposal types.ParameterChangeProposal) sdk.Error {
if err := keeper.proposalCommonCheck(ctx, true, proposer, initialDeposit); err != nil {
return err
}
curHeight := uint64(ctx.BlockHeight())
maxHeight := keeper.GetParams(ctx).MaxBlockHeight
if maxHeight == 0 {
maxHeight = math.MaxInt64 - paramsChangeProposal.Height
}
if paramsChangeProposal.Height < curHeight || paramsChangeProposal.Height > curHeight+maxHeight {
return govtypes.ErrInvalidHeight(paramsChangeProposal.Height, curHeight, maxHeight)
}
// run simulation with cache context
cacheCtx, _ := ctx.CacheContext()
return changeParams(cacheCtx, &keeper, paramsChangeProposal)
}
func (keeper Keeper) checkSubmitUpgradeProposal(ctx sdk.Context, proposer sdk.AccAddress, initialDeposit sdk.SysCoins, proposal types.UpgradeProposal) sdk.Error {
if err := keeper.proposalCommonCheck(ctx, true, proposer, initialDeposit); err != nil {
return err
}
if err := checkUpgradeValidEffectiveHeight(ctx, &keeper, proposal.ExpectHeight); err != nil {
return err
}
if keeper.isUpgradeExist(ctx, proposal.Name) {
keeper.Logger(ctx).Error("upgrade has been exist", "name", proposal.Name)
return sdk.ErrInternal(fmt.Sprintf("upgrade proposal name '%s' has been exist", proposal.Name))
}
return nil
}
func (keeper Keeper) proposalCommonCheck(ctx sdk.Context, checkIsValidator bool, proposer sdk.AccAddress, initialDeposit sdk.SysCoins) sdk.Error {
// check message sender is current validator
if checkIsValidator && !keeper.sk.IsValidator(ctx, proposer) {
return govtypes.ErrInvalidProposer()
}
// check initial deposit more than or equal to ratio of MinDeposit
initDeposit := keeper.GetParams(ctx).MinDeposit.MulDec(sdk.NewDecWithPrec(1, 1))
if err := common.HasSufficientCoins(proposer, initialDeposit, initDeposit); err != nil {
return sdk.ErrInvalidCoins(fmt.Sprintf("InitialDeposit must not be less than %s", initDeposit.String()))
}
// check proposer has sufficient coins
if err := common.HasSufficientCoins(proposer, keeper.ck.GetCoins(ctx, proposer), initialDeposit); err != nil {
return sdk.ErrInvalidCoins(err.Error())
}
return nil
}
// nolint
func (keeper Keeper) AfterSubmitProposalHandler(ctx sdk.Context, proposal govtypes.Proposal) {
switch content := proposal.Content.(type) {
case types.UpgradeProposal:
// must be no error in the normal situation, for the error comes from upgrade name has been exist,
// which has checked in CheckMsgSubmitProposal.
_ = storePreparingUpgrade(ctx, &keeper, content)
}
}
func (keeper Keeper) VoteHandler(ctx sdk.Context, proposal govtypes.Proposal, vote govtypes.Vote) (string, sdk.Error) {
switch content := proposal.Content.(type) {
case types.UpgradeProposal:
return checkUpgradeVote(ctx, proposal.ProposalID, content, vote)
}
return "", nil
}
func (keeper Keeper) AfterDepositPeriodPassed(ctx sdk.Context, proposal govtypes.Proposal) {}
func (keeper Keeper) RejectedHandler(ctx sdk.Context, content govtypes.Content) {}