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authorJavier Peletier <jpeletier@users.noreply.github.com>2018-09-29 04:46:41 +0800
committerFelix Lange <fjl@users.noreply.github.com>2018-09-29 04:46:41 +0800
commitf1b9a3e2f415f6fc43519fdfc5b28ac2afcdada0 (patch)
tree8a69bda14344da2d8829b74992fa6de5cb213890 /contracts
parent79ca6c7a657f5f6660fb136707edb07951bb3309 (diff)
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contracts/ens: expose Add and SetAddr in ENS (#17661)
I am planning to use this to resolve names to user addresses for Swarm/MRU feeds.
Diffstat (limited to 'contracts')
-rw-r--r--contracts/ens/ens.go32
-rw-r--r--contracts/ens/ens_test.go25
2 files changed, 53 insertions, 4 deletions
diff --git a/contracts/ens/ens.go b/contracts/ens/ens.go
index 75d9d0e4b..b7448c471 100644
--- a/contracts/ens/ens.go
+++ b/contracts/ens/ens.go
@@ -151,6 +151,38 @@ func (self *ENS) Resolve(name string) (common.Hash, error) {
return common.BytesToHash(ret[:]), nil
}
+// Addr is a non-transactional call that returns the address associated with a name.
+func (self *ENS) Addr(name string) (common.Address, error) {
+ node := EnsNode(name)
+
+ resolver, err := self.getResolver(node)
+ if err != nil {
+ return common.Address{}, err
+ }
+
+ ret, err := resolver.Addr(node)
+ if err != nil {
+ return common.Address{}, err
+ }
+
+ return common.BytesToAddress(ret[:]), nil
+}
+
+// SetAddress sets the address associated with a name. Only works if the caller
+// owns the name, and the associated resolver implements a `setAddress` function.
+func (self *ENS) SetAddr(name string, addr common.Address) (*types.Transaction, error) {
+ node := EnsNode(name)
+
+ resolver, err := self.getResolver(node)
+ if err != nil {
+ return nil, err
+ }
+
+ opts := self.TransactOpts
+ opts.GasLimit = 200000
+ return resolver.Contract.SetAddr(&opts, node, addr)
+}
+
// Register registers a new domain name for the caller, making them the owner of the new name.
// Only works if the registrar for the parent domain implements the FIFS registrar protocol.
func (self *ENS) Register(name string) (*types.Transaction, error) {
diff --git a/contracts/ens/ens_test.go b/contracts/ens/ens_test.go
index 411b04197..cd64fbf15 100644
--- a/contracts/ens/ens_test.go
+++ b/contracts/ens/ens_test.go
@@ -22,16 +22,18 @@ import (
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
+ "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/contracts/ens/contract"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/crypto"
)
var (
- key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
- name = "my name on ENS"
- hash = crypto.Keccak256Hash([]byte("my content"))
- addr = crypto.PubkeyToAddress(key.PublicKey)
+ key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
+ name = "my name on ENS"
+ hash = crypto.Keccak256Hash([]byte("my content"))
+ addr = crypto.PubkeyToAddress(key.PublicKey)
+ testAddr = common.HexToAddress("0x1234123412341234123412341234123412341234")
)
func TestENS(t *testing.T) {
@@ -74,4 +76,19 @@ func TestENS(t *testing.T) {
if vhost != hash {
t.Fatalf("resolve error, expected %v, got %v", hash.Hex(), vhost.Hex())
}
+
+ // set the address for the name
+ if _, err = ens.SetAddr(name, testAddr); err != nil {
+ t.Fatalf("can't set address: %v", err)
+ }
+ contractBackend.Commit()
+
+ // Try to resolve the name to an address
+ recoveredAddr, err := ens.Addr(name)
+ if err != nil {
+ t.Fatalf("expected no error, got %v", err)
+ }
+ if vhost != hash {
+ t.Fatalf("resolve error, expected %v, got %v", testAddr.Hex(), recoveredAddr.Hex())
+ }
}