142 lines
3.7 KiB
Go
142 lines
3.7 KiB
Go
package keeper
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import (
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"context"
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"errors"
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"strings"
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errorsmod "cosmossdk.io/errors"
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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/authz"
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)
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var _ authz.MsgServer = Keeper{}
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// Grant implements the MsgServer.Grant method to create a new grant.
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func (k Keeper) Grant(goCtx context.Context, msg *authz.MsgGrant) (*authz.MsgGrantResponse, error) {
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if strings.EqualFold(msg.Grantee, msg.Granter) {
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return nil, authz.ErrGranteeIsGranter
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}
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grantee, err := k.authKeeper.AddressCodec().StringToBytes(msg.Grantee)
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if err != nil {
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return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid grantee address: %s", err)
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}
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granter, err := k.authKeeper.AddressCodec().StringToBytes(msg.Granter)
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if err != nil {
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return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid granter address: %s", err)
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}
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if err := msg.Grant.ValidateBasic(); err != nil {
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return nil, err
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}
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// create the account if it is not in account state
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ctx := sdk.UnwrapSDKContext(goCtx)
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granteeAcc := k.authKeeper.GetAccount(ctx, grantee)
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if granteeAcc == nil {
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if k.bankKeeper.BlockedAddr(grantee) {
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return nil, sdkerrors.ErrUnauthorized.Wrapf("%s is not allowed to receive funds", grantee)
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}
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granteeAcc = k.authKeeper.NewAccountWithAddress(ctx, grantee)
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k.authKeeper.SetAccount(ctx, granteeAcc)
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}
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authorization, err := msg.GetAuthorization()
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if err != nil {
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return nil, err
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}
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t := authorization.MsgTypeURL()
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if k.router.HandlerByTypeURL(t) == nil {
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return nil, sdkerrors.ErrInvalidType.Wrapf("%s doesn't exist.", t)
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}
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err = k.SaveGrant(ctx, grantee, granter, authorization, msg.Grant.Expiration)
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if err != nil {
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return nil, err
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}
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return &authz.MsgGrantResponse{}, nil
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}
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// Revoke implements the MsgServer.Revoke method.
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func (k Keeper) Revoke(goCtx context.Context, msg *authz.MsgRevoke) (*authz.MsgRevokeResponse, error) {
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if strings.EqualFold(msg.Grantee, msg.Granter) {
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return nil, authz.ErrGranteeIsGranter
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}
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grantee, err := k.authKeeper.AddressCodec().StringToBytes(msg.Grantee)
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if err != nil {
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return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid grantee address: %s", err)
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}
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granter, err := k.authKeeper.AddressCodec().StringToBytes(msg.Granter)
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if err != nil {
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return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid granter address: %s", err)
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}
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if msg.MsgTypeUrl == "" {
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return nil, sdkerrors.ErrInvalidRequest.Wrap("missing msg method name")
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}
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ctx := sdk.UnwrapSDKContext(goCtx)
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if err = k.DeleteGrant(ctx, grantee, granter, msg.MsgTypeUrl); err != nil {
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return nil, err
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}
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return &authz.MsgRevokeResponse{}, nil
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}
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// Exec implements the MsgServer.Exec method.
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func (k Keeper) Exec(goCtx context.Context, msg *authz.MsgExec) (*authz.MsgExecResponse, error) {
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ctx := sdk.UnwrapSDKContext(goCtx)
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if msg.Grantee == "" {
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return nil, errors.New("empty address string is not allowed")
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}
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grantee, err := k.authKeeper.AddressCodec().StringToBytes(msg.Grantee)
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if err != nil {
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return nil, sdkerrors.ErrInvalidAddress.Wrapf("invalid grantee address: %s", err)
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}
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if len(msg.Msgs) == 0 {
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return nil, sdkerrors.ErrInvalidRequest.Wrapf("messages cannot be empty")
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}
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msgs, err := msg.GetMessages()
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if err != nil {
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return nil, err
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}
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if err := validateMsgs(msgs); err != nil {
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return nil, err
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}
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results, err := k.DispatchActions(ctx, grantee, msgs)
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if err != nil {
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return nil, err
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}
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return &authz.MsgExecResponse{Results: results}, nil
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}
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func validateMsgs(msgs []sdk.Msg) error {
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for i, msg := range msgs {
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m, ok := msg.(sdk.HasValidateBasic)
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if !ok {
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continue
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}
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if err := m.ValidateBasic(); err != nil {
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return errorsmod.Wrapf(err, "msg %d", i)
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}
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}
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return nil
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}
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