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whitelistaddr var and less params

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This commit is contained in:
Shawn 2023-12-12 01:40:32 -08:00
parent e0fd766386
commit 53041a03e7
1 changed files with 17 additions and 13 deletions
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30
core/vm/contracts_with_ctx.go
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@ -77,21 +77,25 @@ func (c *mint) RequiredGas(input []byte) uint64 {
return 100
}
// TODO
const whitelistCreate2Addr = "0x000000"
func (c *mint) Run(input []byte, ctx *precompileContext) ([]byte, error) {
// TODO: filter out non-allowed callers
_ = common.BytesToAddress(input[0:32]) // From
if ctx.caller != common.HexToAddress(whitelistCreate2Addr) {
return nil, fmt.Errorf("Error parsing transfer: caller not whitelisted")
}
to := common.BytesToAddress(input[32:64])
mintTo := common.BytesToAddress(input[0:32])
var parsed bool
value, parsed := math.ParseBig256(hexutil.Encode(input[64:96]))
value, parsed := math.ParseBig256(hexutil.Encode(input[32:64]))
if !parsed {
return nil, fmt.Errorf("Error parsing transfer: unable to parse value from " + hexutil.Encode(input[64:96]))
}
// Mint case: Create native token out of thin air
ctx.evm.StateDB.AddBalance(to, value)
// Create native token out of thin air
ctx.evm.StateDB.AddBalance(mintTo, value)
return input, nil
}
@ -106,22 +110,22 @@ func (c *burn) RequiredGas(input []byte) uint64 {
func (c *burn) Run(input []byte, ctx *precompileContext) ([]byte, error) {
// TODO: filter out non-allowed callers
_ = common.BytesToAddress(input[0:32]) // From
if ctx.caller != common.HexToAddress(whitelistCreate2Addr) {
return nil, fmt.Errorf("Error parsing transfer: caller not whitelisted")
}
// Address to get their tokens burned
addrReqTokenBurn := common.BytesToAddress(input[32:64])
burnFrom := common.BytesToAddress(input[0:32])
var parsed bool
value, parsed := math.ParseBig256(hexutil.Encode(input[64:96]))
value, parsed := math.ParseBig256(hexutil.Encode(input[32:64]))
if !parsed {
return nil, fmt.Errorf("Error parsing transfer: unable to parse value from " + hexutil.Encode(input[64:96]))
}
if !ctx.CanTransfer(ctx.evm.StateDB, addrReqTokenBurn, value) {
if !ctx.CanTransfer(ctx.evm.StateDB, burnFrom, value) {
return nil, ErrInsufficientBalance
}
ctx.evm.StateDB.SubBalance(addrReqTokenBurn, value)
ctx.evm.StateDB.SubBalance(burnFrom, value)
return input, nil
}