60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package bank
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import (
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/bank/tags"
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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 {
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switch msg := msg.(type) {
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case MsgSend:
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return handleMsgSend(ctx, k, msg)
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case MsgMultiSend:
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return handleMsgMultiSend(ctx, k, msg)
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default:
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errMsg := "Unrecognized bank Msg type: %s" + msg.Type()
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return sdk.ErrUnknownRequest(errMsg).Result()
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}
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}
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}
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// Handle MsgSend.
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func handleMsgSend(ctx sdk.Context, k Keeper, msg MsgSend) sdk.Result {
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if !k.GetSendEnabled(ctx) {
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return ErrSendDisabled(k.Codespace()).Result()
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}
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err := k.SendCoins(ctx, msg.FromAddress, msg.ToAddress, msg.Amount)
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if err != nil {
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return err.Result()
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}
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resTags := sdk.NewTags(
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tags.Category, tags.TxCategory,
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tags.Sender, msg.FromAddress.String(),
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tags.Recipient, msg.ToAddress.String(),
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)
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return sdk.Result{
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Tags: resTags,
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}
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}
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// Handle MsgMultiSend.
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func handleMsgMultiSend(ctx sdk.Context, k Keeper, msg MsgMultiSend) sdk.Result {
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// NOTE: totalIn == totalOut should already have been checked
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if !k.GetSendEnabled(ctx) {
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return ErrSendDisabled(k.Codespace()).Result()
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}
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resTags, err := k.InputOutputCoins(ctx, msg.Inputs, msg.Outputs)
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if err != nil {
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return err.Result()
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}
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resTags = resTags.AppendTag(tags.Category, tags.TxCategory)
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return sdk.Result{
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Tags: resTags,
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}
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}
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