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ante.go
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ante.go
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package keeper
import (
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/bianjieai/iritamod/modules/side-chain/types"
)
type ValidateSideChainDecorator struct {
keeper Keeper
permKeeper types.PermKeeper
}
func NewValidateSideChainDecorator(keeper Keeper, permKeeper types.PermKeeper) ValidateSideChainDecorator {
return ValidateSideChainDecorator{
keeper: keeper,
permKeeper: permKeeper,
}
}
func (dlt ValidateSideChainDecorator) AnteHandle(ctx sdk.Context, tx sdk.Tx, simulate bool, next sdk.AnteHandler) (sdk.Context, error) {
for _, msg := range tx.GetMsgs() {
switch msg := msg.(type) {
case *types.MsgCreateSpace:
if err := dlt.validateSideChainUserRole(ctx, msg.Sender); err != nil {
return ctx, err
}
case *types.MsgTransferSpace:
if err := dlt.validateOnlySpace(ctx, msg.SpaceId); err != nil {
return ctx, err
}
if err := dlt.validateSideChainUserRole(ctx, msg.Sender); err != nil {
return ctx, err
}
if err := dlt.validateSideChainUserRole(ctx, msg.Recipient); err != nil {
return ctx, err
}
case *types.MsgCreateBlockHeader:
if err := dlt.validateOnlySpace(ctx, msg.SpaceId); err != nil {
return ctx, err
}
if err := dlt.validateSideChainUserRole(ctx, msg.Sender); err != nil {
return ctx, err
}
}
}
return next(ctx, tx, simulate)
}
func (dlt ValidateSideChainDecorator) validateOnlySpace(ctx sdk.Context, spaceId uint64) error {
if !dlt.keeper.HasSpace(ctx, spaceId) {
return sdkerrors.Wrapf(types.ErrInvalidSpaceId, "space (%d) does not exist", spaceId)
}
return nil
}
func (dlt ValidateSideChainDecorator) validateSideChainUserRole(ctx sdk.Context, addr string) error {
accAddr, _ := sdk.AccAddressFromBech32(addr)
if !dlt.permKeeper.HasSideChainUserRole(ctx, accAddr) {
return sdkerrors.Wrapf(types.ErrInvalidSideChainUser, "account (%s) does not have side chain user role", addr)
}
return nil
}