139 lines
3.8 KiB
Go
139 lines
3.8 KiB
Go
package gov
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import (
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"fmt"
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"strconv"
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metrics "github.com/armon/go-metrics"
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"github.com/cosmos/cosmos-sdk/telemetry"
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sdk "github.com/cosmos/cosmos-sdk/types"
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sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
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"github.com/cosmos/cosmos-sdk/x/gov/keeper"
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"github.com/cosmos/cosmos-sdk/x/gov/types"
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)
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// NewHandler creates an sdk.Handler for all the gov type messages
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func NewHandler(keeper keeper.Keeper) sdk.Handler {
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return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
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ctx = ctx.WithEventManager(sdk.NewEventManager())
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switch msg := msg.(type) {
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case *types.MsgDeposit:
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return handleMsgDeposit(ctx, keeper, msg)
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case types.MsgSubmitProposalI:
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return handleMsgSubmitProposal(ctx, keeper, msg)
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case *types.MsgVote:
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return handleMsgVote(ctx, keeper, msg)
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default:
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return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", types.ModuleName, msg)
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}
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}
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}
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func handleMsgSubmitProposal(ctx sdk.Context, keeper keeper.Keeper, msg types.MsgSubmitProposalI) (*sdk.Result, error) {
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proposal, err := keeper.SubmitProposal(ctx, msg.GetContent())
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if err != nil {
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return nil, err
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}
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defer telemetry.IncrCounter(1, types.ModuleName, "proposal")
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votingStarted, err := keeper.AddDeposit(ctx, proposal.ProposalId, msg.GetProposer(), msg.GetInitialDeposit())
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if err != nil {
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return nil, err
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}
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
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sdk.NewAttribute(sdk.AttributeKeySender, msg.GetProposer().String()),
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),
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)
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submitEvent := sdk.NewEvent(types.EventTypeSubmitProposal, sdk.NewAttribute(types.AttributeKeyProposalType, msg.GetContent().ProposalType()))
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if votingStarted {
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submitEvent = submitEvent.AppendAttributes(
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sdk.NewAttribute(types.AttributeKeyVotingPeriodStart, fmt.Sprintf("%d", proposal.ProposalId)),
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)
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}
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ctx.EventManager().EmitEvent(submitEvent)
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return &sdk.Result{
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Data: types.GetProposalIDBytes(proposal.ProposalId),
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Events: ctx.EventManager().ABCIEvents(),
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}, nil
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}
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func handleMsgDeposit(ctx sdk.Context, keeper keeper.Keeper, msg *types.MsgDeposit) (*sdk.Result, error) {
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accAddr, err := sdk.AccAddressFromBech32(msg.Depositor)
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if err != nil {
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return nil, err
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}
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votingStarted, err := keeper.AddDeposit(ctx, msg.ProposalId, accAddr, msg.Amount)
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if err != nil {
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return nil, err
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}
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defer telemetry.IncrCounterWithLabels(
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[]string{types.ModuleName, "deposit"},
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1,
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[]metrics.Label{
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telemetry.NewLabel("proposal_id", strconv.Itoa(int(msg.ProposalId))),
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},
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)
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
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sdk.NewAttribute(sdk.AttributeKeySender, msg.Depositor),
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),
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)
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if votingStarted {
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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types.EventTypeProposalDeposit,
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sdk.NewAttribute(types.AttributeKeyVotingPeriodStart, fmt.Sprintf("%d", msg.ProposalId)),
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),
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)
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}
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return &sdk.Result{Events: ctx.EventManager().ABCIEvents()}, nil
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}
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func handleMsgVote(ctx sdk.Context, keeper keeper.Keeper, msg *types.MsgVote) (*sdk.Result, error) {
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accAddr, accErr := sdk.AccAddressFromBech32(msg.Voter)
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if accErr != nil {
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return nil, accErr
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}
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err := keeper.AddVote(ctx, msg.ProposalId, accAddr, msg.Option)
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if err != nil {
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return nil, err
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}
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defer telemetry.IncrCounterWithLabels(
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[]string{types.ModuleName, "vote"},
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1,
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[]metrics.Label{
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telemetry.NewLabel("proposal_id", strconv.Itoa(int(msg.ProposalId))),
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},
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)
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ctx.EventManager().EmitEvent(
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sdk.NewEvent(
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sdk.EventTypeMessage,
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sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
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sdk.NewAttribute(sdk.AttributeKeySender, msg.Voter),
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),
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)
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return &sdk.Result{Events: ctx.EventManager().ABCIEvents()}, nil
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}
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