crossrealm.gno

 1package crossrealm_e
 2
 3import "chain/runtime"
 4
 5var (
 6	balance int64
 7	owner   address
 8)
 9
10func init() {
11	balance = 1000
12	SetOwner(address("g1dao_address_here"))
13}
14
15// SetOwner is an internal helper that was exported by mistake
16// (should be setOwner). Without the pre-mutation readonly check,
17// a cross-realm caller could call SetOwner + recover to silently
18// hijack ownership in memory, then call TransferToken to steal funds.
19func SetOwner(o address) {
20	owner = o
21}
22
23func GetOwner() address {
24	return owner
25}
26
27func TransferOwnership(cur realm, o address) {
28	if runtime.PreviousRealm().Address() != owner {
29		panic("unauthorized")
30	}
31	owner = o
32}
33
34func TransferToken(cur realm) {
35	caller := runtime.PreviousRealm().Address()
36	if caller != owner {
37		panic("unauthorized")
38	}
39	balance -= 500
40	println("===send token to: ", caller)
41}