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handler.go
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handler.go
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package mapping
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/oinfinance/crossnode/x/mapping/keeper"
"github.com/oinfinance/crossnode/x/mapping/types"
"math/big"
"strings"
)
// NewHandler returns a handler for "greeter" type messages.
func NewHandler(k keeper.Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) sdk.Result {
ctx = ctx.WithEventManager(sdk.NewEventManager())
switch msg := msg.(type) {
case *types.MsgRegister:
return handleMsgRegister(ctx, k, msg)
case *types.MsgMapVerify:
return handleMsgMapVerify(ctx, k, msg)
default:
errMsg := fmt.Sprintf("unrecognized mapping message type: %T", msg)
return sdk.ErrUnknownRequest(errMsg).Result()
}
}
}
func handleMsgRegister(ctx sdk.Context, k keeper.Keeper, msg *types.MsgRegister) sdk.Result {
if err := msg.ValidateBasic(); err != nil {
return sdk.NewError(types.DefaultCodespace, types.CodeInvalidInput, "validate basic failed").Result()
}
info := types.MappingInfo{}
info.ErcAddr = msg.ErcAddr
info.CCAddr = msg.CCAddr
info.Status = types.MappingWaitVerify
info.Balance = big.NewInt(0)
info.RegisterBlock = uint64(ctx.BlockHeader().Height)
err := k.AddMapping(ctx, &info)
if err != nil {
return sdk.NewError(types.DefaultCodespace, types.CodeInvalidInput, "has been mapped").Result()
}
k.AddVerified(ctx, msg.CCAddr)
return sdk.Result{}
}
func handleMsgMapVerify(ctx sdk.Context, k keeper.Keeper, msg *types.MsgMapVerify) sdk.Result {
if err := msg.ValidateBasic(); err != nil {
return sdk.NewError(types.DefaultCodespace, types.CodeInvalidInput, "validate basic failed").Result()
}
info := k.GetMapInfo(ctx, msg.ErcAddr)
if info == nil {
return sdk.NewError(types.DefaultCodespace, types.CodeInvalidAddress, "have no registered").Result()
}
if strings.Compare(string(msg.CCAddr), info.CCAddr) != 0 {
return sdk.NewError(types.DefaultCodespace, types.CodeInvalidAddress, "binding ccAddr not matched").Result()
}
status := k.GetVerified(ctx, msg.CCAddr)
if status == types.MappingVerifyPassed {
return sdk.NewError(types.DefaultCodespace, types.CodeInvalidAddress, "ccAddr have been band").Result()
}
info.Status = types.MappingVerifyPassed
k.UpdateMapping(ctx, info)
k.UpdateVerified(ctx, msg.CCAddr, byte(types.MappingVerifyPassed))
return sdk.Result{}
}