/
msg_server.go
168 lines (139 loc) · 5.23 KB
/
msg_server.go
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package keeper
import (
"context"
"encoding/json"
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
govkeeper "github.com/cosmos/cosmos-sdk/x/gov/keeper"
govv1 "github.com/cosmos/cosmos-sdk/x/gov/types/v1"
govv1beta1 "github.com/cosmos/cosmos-sdk/x/gov/types/v1beta1"
"github.com/mars-protocol/hub/x/gov/types"
)
//------------------------------------------------------------------------------
// msgServer
//------------------------------------------------------------------------------
type msgServer struct{ k Keeper }
// NewMsgServerImpl creates an implementation of the gov v1 MsgServer interface
// for the given keeper.
func NewMsgServerImpl(k Keeper) govv1.MsgServer {
return &msgServer{k}
}
func (ms msgServer) SubmitProposal(goCtx context.Context, msg *govv1.MsgSubmitProposal) (*govv1.MsgSubmitProposalResponse, error) {
// the metadata string must not be empty. attempt to deserialize it using
// the given schema return error if fails.
if _, err := types.UnmarshalProposalMetadata(msg.Metadata); err != nil {
return nil, types.ErrInvalidMetadata.Wrap(err.Error())
}
// if metadata is good, we just hand over the rest to the vanilla msgServer
return govkeeper.NewMsgServerImpl(ms.k.Keeper).SubmitProposal(goCtx, msg)
}
func (ms msgServer) Vote(goCtx context.Context, msg *govv1.MsgVote) (*govv1.MsgVoteResponse, error) {
// if the metadata string is not empty, attempt to deserialize it using the
// given schema. return error if fails
if len(msg.Metadata) > 0 {
if _, err := types.UnmarshalVoteMetadata(msg.Metadata); err != nil {
return nil, types.ErrInvalidMetadata.Wrap(err.Error())
}
}
// if metadata is good, we just hand over the rest to the vanilla msgServer
return govkeeper.NewMsgServerImpl(ms.k.Keeper).Vote(goCtx, msg)
}
func (ms msgServer) ExecLegacyContent(goCtx context.Context, msg *govv1.MsgExecLegacyContent) (*govv1.MsgExecLegacyContentResponse, error) {
return govkeeper.NewMsgServerImpl(ms.k.Keeper).ExecLegacyContent(goCtx, msg)
}
func (ms msgServer) VoteWeighted(goCtx context.Context, msg *govv1.MsgVoteWeighted) (*govv1.MsgVoteWeightedResponse, error) {
return govkeeper.NewMsgServerImpl(ms.k.Keeper).VoteWeighted(goCtx, msg)
}
func (ms msgServer) Deposit(goCtx context.Context, msg *govv1.MsgDeposit) (*govv1.MsgDepositResponse, error) {
return govkeeper.NewMsgServerImpl(ms.k.Keeper).Deposit(goCtx, msg)
}
//------------------------------------------------------------------------------
// legacyMsgServer
//------------------------------------------------------------------------------
type legacyMsgServer struct {
govAcct string
server govv1.MsgServer
}
// NewMsgServerImpl creates an implementation of the gov v1 MsgServer interface
// for the given keeper.
func NewLegacyMsgServerImpl(govAcct string, server govv1.MsgServer) govv1beta1.MsgServer {
return &legacyMsgServer{
govAcct: govAcct,
server: server,
}
}
func (k legacyMsgServer) SubmitProposal(goCtx context.Context, msg *govv1beta1.MsgSubmitProposal) (*govv1beta1.MsgSubmitProposalResponse, error) {
content := msg.GetContent()
contentMsg, err := govv1.NewLegacyContent(content, k.govAcct)
if err != nil {
return nil, fmt.Errorf("error converting legacy content into proposal message: %w", err)
}
// this part is different from the vanilla gov module:
//
// we compose the metadata string based on the legacy content, instead of
// simply leaving it empty.
//
// this is necessary because of the metadata type check we implemented.
metadata := types.ProposalMetadata{
Title: content.GetTitle(),
Summary: content.GetDescription(),
}
metadataStr, err := json.Marshal(&metadata)
if err != nil {
return nil, err
}
proposal, err := govv1.NewMsgSubmitProposal(
[]sdk.Msg{contentMsg},
msg.InitialDeposit,
msg.Proposer,
string(metadataStr),
)
if err != nil {
return nil, err
}
resp, err := k.server.SubmitProposal(goCtx, proposal)
if err != nil {
return nil, err
}
return &govv1beta1.MsgSubmitProposalResponse{ProposalId: resp.ProposalId}, nil
}
func (k legacyMsgServer) Vote(goCtx context.Context, msg *govv1beta1.MsgVote) (*govv1beta1.MsgVoteResponse, error) {
_, err := k.server.Vote(goCtx, &govv1.MsgVote{
ProposalId: msg.ProposalId,
Voter: msg.Voter,
Option: govv1.VoteOption(msg.Option),
})
if err != nil {
return nil, err
}
return &govv1beta1.MsgVoteResponse{}, nil
}
func (k legacyMsgServer) VoteWeighted(goCtx context.Context, msg *govv1beta1.MsgVoteWeighted) (*govv1beta1.MsgVoteWeightedResponse, error) {
opts := make([]*govv1.WeightedVoteOption, len(msg.Options))
for idx, opt := range msg.Options {
opts[idx] = &govv1.WeightedVoteOption{
Option: govv1.VoteOption(opt.Option),
Weight: opt.Weight.String(),
}
}
_, err := k.server.VoteWeighted(goCtx, &govv1.MsgVoteWeighted{
ProposalId: msg.ProposalId,
Voter: msg.Voter,
Options: opts,
})
if err != nil {
return nil, err
}
return &govv1beta1.MsgVoteWeightedResponse{}, nil
}
func (k legacyMsgServer) Deposit(goCtx context.Context, msg *govv1beta1.MsgDeposit) (*govv1beta1.MsgDepositResponse, error) {
_, err := k.server.Deposit(goCtx, &govv1.MsgDeposit{
ProposalId: msg.ProposalId,
Depositor: msg.Depositor,
Amount: msg.Amount,
})
if err != nil {
return nil, err
}
return &govv1beta1.MsgDepositResponse{}, nil
}