112 lines
3.0 KiB
Go
112 lines
3.0 KiB
Go
package wasm
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import (
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"fmt"
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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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)
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const (
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AttributeKeyContract = "contract_address"
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AttributeKeyCodeID = "code_id"
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AttributeSigner = "signer"
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)
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// NewHandler returns a handler for "bank" type messages.
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func NewHandler(k 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 MsgStoreCode:
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return handleStoreCode(ctx, k, &msg)
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case *MsgStoreCode:
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return handleStoreCode(ctx, k, msg)
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case MsgInstantiateContract:
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return handleInstantiate(ctx, k, &msg)
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case *MsgInstantiateContract:
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return handleInstantiate(ctx, k, msg)
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case MsgExecuteContract:
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return handleExecute(ctx, k, &msg)
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case *MsgExecuteContract:
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return handleExecute(ctx, k, msg)
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default:
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errMsg := fmt.Sprintf("unrecognized wasm message type: %T", msg)
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return nil, sdkerrors.Wrap(sdkerrors.ErrUnknownRequest, errMsg)
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}
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}
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}
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func handleStoreCode(ctx sdk.Context, k Keeper, msg *MsgStoreCode) (*sdk.Result, error) {
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err := msg.ValidateBasic()
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if err != nil {
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return nil, err
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}
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codeID, err := k.Create(ctx, msg.Sender, msg.WASMByteCode, msg.Source, msg.Builder)
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if err != nil {
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return nil, err
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}
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// de-duplicate events sent in other parts of the sdk
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// https://github.com/confio/cosm-js/pull/40#discussion_r374811810
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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, ModuleName),
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sdk.NewAttribute(AttributeSigner, msg.Sender.String()),
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sdk.NewAttribute(AttributeKeyCodeID, fmt.Sprintf("%d", codeID)),
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),
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)
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return &sdk.Result{
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Data: []byte(fmt.Sprintf("%d", codeID)),
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Events: ctx.EventManager().Events(),
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}, nil
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}
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func handleInstantiate(ctx sdk.Context, k Keeper, msg *MsgInstantiateContract) (*sdk.Result, error) {
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contractAddr, err := k.Instantiate(ctx, msg.Code, msg.Sender, msg.InitMsg, msg.InitFunds)
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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, ModuleName),
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sdk.NewAttribute(AttributeSigner, msg.Sender.String()),
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sdk.NewAttribute(AttributeKeyCodeID, fmt.Sprintf("%d", msg.Code)),
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sdk.NewAttribute(AttributeKeyContract, contractAddr.String()),
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),
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)
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return &sdk.Result{
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Data: contractAddr,
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Events: ctx.EventManager().Events(),
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}, nil
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}
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func handleExecute(ctx sdk.Context, k Keeper, msg *MsgExecuteContract) (*sdk.Result, error) {
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res, err := k.Execute(ctx, msg.Contract, msg.Sender, msg.Msg, msg.SentFunds)
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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, ModuleName),
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sdk.NewAttribute(AttributeSigner, msg.Sender.String()),
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sdk.NewAttribute(AttributeKeyContract, msg.Contract.String()),
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),
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)
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res.Events = append(res.Events, ctx.EventManager().Events()...)
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return &res, nil
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}
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