func (self *EthReg) Resolver(n *big.Int) *registrar.Registrar {
xe := self.backend
if n != nil {
xe = self.backend.AtStateNum(n.Int64())
}
return registrar.New(xe)
}
func testInit(t *testing.T) (self *testFrontend) {
// initialise and start minimal ethereum stack
ethereum, err := testEth(t)
if err != nil {
t.Errorf("error creating ethereum: %v", err)
return
}
err = ethereum.Start()
if err != nil {
t.Errorf("error starting ethereum: %v", err)
return
}
// mock frontend
self = &testFrontend{t: t, ethereum: ethereum}
self.xeth = xe.New(ethereum, self)
self.wait = self.xeth.UpdateState()
addr, _ := self.ethereum.Etherbase()
// initialise the registry contracts
reg := registrar.New(self.xeth)
var registrarTxhash, hashRegTxhash, urlHintTxhash string
registrarTxhash, err = reg.SetGlobalRegistrar("", addr)
if err != nil {
t.Errorf("error creating GlobalRegistrar: %v", err)
}
hashRegTxhash, err = reg.SetHashReg("", addr)
if err != nil {
t.Errorf("error creating HashReg: %v", err)
}
urlHintTxhash, err = reg.SetUrlHint("", addr)
if err != nil {
t.Errorf("error creating UrlHint: %v", err)
}
if !processTxs(self, t, 3) {
t.Errorf("error mining txs")
}
_ = registrarTxhash
_ = hashRegTxhash
_ = urlHintTxhash
/* TODO:
* lookup receipt and contract addresses by tx hash
* name registration for HashReg and UrlHint addresses
* mine those transactions
* then set once more SetHashReg SetUrlHint
*/
return
}
// also called by admin.contractInfo.get
func FetchDocsForContract(contractAddress string, xeth *xeth.XEth, ds *docserver.DocServer) (content []byte, err error) {
// retrieve contract hash from state
codehex := xeth.CodeAt(contractAddress)
codeb := xeth.CodeAtBytes(contractAddress)
if codehex == "0x" {
err = fmt.Errorf("contract (%v) not found", contractAddress)
return
}
codehash := common.BytesToHash(crypto.Sha3(codeb))
// set up nameresolver with natspecreg + urlhint contract addresses
reg := registrar.New(xeth)
// resolve host via HashReg/UrlHint Resolver
hash, err := reg.HashToHash(codehash)
if err != nil {
return
}
if ds.HasScheme("bzz") {
content, err = ds.Get("bzz://"+hash.Hex()[2:], "")
if err == nil { // non-fatal
return
}
err = nil
//falling back to urlhint
}
uri, err := reg.HashToUrl(hash)
if err != nil {
return
}
// get content via http client and authenticate content using hash
content, err = ds.GetAuthContent(uri, hash)
if err != nil {
return
}
return
}
// end to end test
func TestNatspecE2E(t *testing.T) {
t.Skip()
tf := testInit(t)
defer tf.ethereum.Stop()
addr, _ := tf.ethereum.Etherbase()
// create a contractInfo file (mock cloud-deployed contract metadocs)
// incidentally this is the info for the registry contract itself
ioutil.WriteFile("/tmp/"+testFileName, []byte(testContractInfo), os.ModePerm)
dochash := crypto.Sha3Hash([]byte(testContractInfo))
// take the codehash for the contract we wanna test
codeb := tf.xeth.CodeAtBytes(registrar.HashRegAddr)
codehash := crypto.Sha3Hash(codeb)
// use resolver to register codehash->dochash->url
// test if globalregistry works
// registrar.HashRefAddr = "0x0"
// registrar.UrlHintAddr = "0x0"
reg := registrar.New(tf.xeth)
_, err := reg.SetHashToHash(addr, codehash, dochash)
if err != nil {
t.Errorf("error registering: %v", err)
}
_, err = reg.SetUrlToHash(addr, dochash, "file:///"+testFileName)
if err != nil {
t.Errorf("error registering: %v", err)
}
if !processTxs(tf, t, 5) {
return
}
// NatSpec info for register method of HashReg contract installed
// now using the same transactions to check confirm messages
tf.wantNatSpec = true // this is set so now the backend uses natspec confirmation
_, err = reg.SetHashToHash(addr, codehash, dochash)
if err != nil {
t.Errorf("error calling contract registry: %v", err)
}
fmt.Printf("GlobalRegistrar: %v, HashReg: %v, UrlHint: %v\n", registrar.GlobalRegistrarAddr, registrar.HashRegAddr, registrar.UrlHintAddr)
if tf.lastConfirm != testExpNotice {
t.Errorf("Wrong confirm message. expected\n'%v', got\n'%v'", testExpNotice, tf.lastConfirm)
}
// test unknown method
exp := fmt.Sprintf(testExpNotice2, registrar.HashRegAddr)
_, err = reg.SetOwner(addr)
if err != nil {
t.Errorf("error setting owner: %v", err)
}
if tf.lastConfirm != exp {
t.Errorf("Wrong confirm message, expected\n'%v', got\n'%v'", exp, tf.lastConfirm)
}
// test unknown contract
exp = fmt.Sprintf(testExpNotice3, registrar.UrlHintAddr)
_, err = reg.SetUrlToHash(addr, dochash, "file:///test.content")
if err != nil {
t.Errorf("error registering: %v", err)
}
if tf.lastConfirm != exp {
t.Errorf("Wrong confirm message, expected '%v', got '%v'", exp, tf.lastConfirm)
}
}
func New(xe *xeth.XEth) (self *EthReg) {
self = &EthReg{backend: xe}
self.registry = registrar.New(xe)
return
}