예제 #1
0
// also called by admin.contractInfo.get
func FetchDocsForContract(contractAddress string, xeth *xeth.XEth, http *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
	res := resolver.New(xeth)

	// resolve host via HashReg/UrlHint Resolver
	uri, hash, err := res.KeyToUrl(codehash)
	if err != nil {
		return
	}

	// get content via http client and authenticate content using hash
	content, err = http.GetAuthContent(uri, hash)
	if err != nil {
		return
	}

	return
}
예제 #2
0
func New(xeth *xeth.XEth, tx string, http *docserver.DocServer) (self *NatSpec, err error) {

	// extract contract address from tx

	var obj map[string]json.RawMessage
	err = json.Unmarshal([]byte(tx), &obj)
	if err != nil {
		return
	}
	var tmp []map[string]string
	err = json.Unmarshal(obj["params"], &tmp)
	if err != nil {
		return
	}
	contractAddress := tmp[0]["to"]

	// retrieve contract hash from state
	if !xeth.IsContract(contractAddress) {
		err = fmt.Errorf("NatSpec error: contract not found")
		return
	}
	codehex := xeth.CodeAt(contractAddress)
	codeHash := common.BytesToHash(crypto.Sha3(common.Hex2Bytes(codehex[2:])))
	// parse out host/domain

	// set up nameresolver with natspecreg + urlhint contract addresses
	res := resolver.New(
		xeth,
		resolver.URLHintContractAddress,
		resolver.HashRegContractAddress,
	)

	// resolve host via HashReg/UrlHint Resolver
	uri, hash, err := res.KeyToUrl(codeHash)
	if err != nil {
		return
	}

	// get content via http client and authenticate content using hash
	content, err := http.GetAuthContent(uri, hash)
	if err != nil {
		return
	}

	// get abi, userdoc
	var obj2 map[string]json.RawMessage
	err = json.Unmarshal(content, &obj2)
	if err != nil {
		return
	}

	abi := []byte(obj2["abi"])
	userdoc := []byte(obj2["userdoc"])

	self, err = NewWithDocs(abi, userdoc, tx)
	return
}
예제 #3
0
func (self *testFrontend) testResolver() *resolver.Resolver {
	return resolver.New(self.xeth, resolver.URLHintContractAddress, resolver.HashRegContractAddress)
}
예제 #4
0
func TestContract(t *testing.T) {
	t.Skip()
	tmp, repl, ethereum := testJEthRE(t)
	if err := ethereum.Start(); err != nil {
		t.Errorf("error starting ethereum: %v", err)
		return
	}
	defer ethereum.Stop()
	defer os.RemoveAll(tmp)

	var txc uint64
	coinbase := common.HexToAddress(testAddress)
	resolver.New(repl.xeth).CreateContracts(coinbase)
	// time.Sleep(1000 * time.Millisecond)

	// checkEvalJSON(t, repl, `eth.getBlock("pending", true).transactions.length`, `2`)
	source := `contract test {\n` +
		"   /// @notice Will multiply `a` by 7." + `\n` +
		`   function multiply(uint a) returns(uint d) {\n` +
		`       return a * 7;\n` +
		`   }\n` +
		`}\n`

	checkEvalJSON(t, repl, `admin.contractInfo.stop()`, `true`)

	contractInfo, err := ioutil.ReadFile("info_test.json")
	if err != nil {
		t.Fatalf("%v", err)
	}
	checkEvalJSON(t, repl, `primary = eth.accounts[0]`, `"`+testAddress+`"`)
	checkEvalJSON(t, repl, `source = "`+source+`"`, `"`+source+`"`)

	// if solc is found with right version, test it, otherwise read from file
	sol, err := compiler.New("")
	if err != nil {
		t.Logf("solc not found: mocking contract compilation step")
	} else if sol.Version() != solcVersion {
		t.Logf("WARNING: solc different version found (%v, test written for %v, may need to update)", sol.Version(), solcVersion)
	}

	if err != nil {
		info, err := ioutil.ReadFile("info_test.json")
		if err != nil {
			t.Fatalf("%v", err)
		}
		_, err = repl.re.Run(`contract = JSON.parse(` + strconv.Quote(string(info)) + `)`)
		if err != nil {
			t.Errorf("%v", err)
		}
	} else {
		checkEvalJSON(t, repl, `contract = eth.compile.solidity(source).test`, string(contractInfo))
	}

	checkEvalJSON(t, repl, `contract.code`, `"0x605880600c6000396000f3006000357c010000000000000000000000000000000000000000000000000000000090048063c6888fa114602e57005b603d6004803590602001506047565b8060005260206000f35b60006007820290506053565b91905056"`)

	checkEvalJSON(
		t, repl,
		`contractaddress = eth.sendTransaction({from: primary, data: contract.code })`,
		`"0x5dcaace5982778b409c524873b319667eba5d074"`,
	)

	callSetup := `abiDef = JSON.parse('[{"constant":false,"inputs":[{"name":"a","type":"uint256"}],"name":"multiply","outputs":[{"name":"d","type":"uint256"}],"type":"function"}]');
Multiply7 = eth.contract(abiDef);
multiply7 = Multiply7.at(contractaddress);
`
	// time.Sleep(1500 * time.Millisecond)
	_, err = repl.re.Run(callSetup)
	if err != nil {
		t.Errorf("unexpected error setting up contract, got %v", err)
	}

	// checkEvalJSON(t, repl, `eth.getBlock("pending", true).transactions.length`, `3`)

	// why is this sometimes failing?
	// checkEvalJSON(t, repl, `multiply7.multiply.call(6)`, `42`)
	expNotice := ""
	if repl.lastConfirm != expNotice {
		t.Errorf("incorrect confirmation message: expected %v, got %v", expNotice, repl.lastConfirm)
	}

	txc, repl.xeth = repl.xeth.ApplyTestTxs(repl.stateDb, coinbase, txc)

	checkEvalJSON(t, repl, `admin.contractInfo.start()`, `true`)
	checkEvalJSON(t, repl, `multiply7.multiply.sendTransaction(6, { from: primary, gas: "1000000", gasPrice: "100000" })`, `undefined`)
	expNotice = `About to submit transaction (no NatSpec info found for contract: content hash not found for '0x87e2802265838c7f14bb69eecd2112911af6767907a702eeaa445239fb20711b'): {"params":[{"to":"0x5dcaace5982778b409c524873b319667eba5d074","data": "0xc6888fa10000000000000000000000000000000000000000000000000000000000000006"}]}`
	if repl.lastConfirm != expNotice {
		t.Errorf("incorrect confirmation message: expected %v, got %v", expNotice, repl.lastConfirm)
	}

	var contenthash = `"0x86d2b7cf1e72e9a7a3f8d96601f0151742a2f780f1526414304fbe413dc7f9bd"`
	if sol != nil {
		modContractInfo := versionRE.ReplaceAll(contractInfo, []byte(`"compilerVersion":"`+sol.Version()+`"`))
		_ = modContractInfo
		// contenthash = crypto.Sha3(modContractInfo)
	}
	checkEvalJSON(t, repl, `filename = "/tmp/info.json"`, `"/tmp/info.json"`)
	checkEvalJSON(t, repl, `contenthash = admin.contractInfo.register(primary, contractaddress, contract, filename)`, contenthash)
	checkEvalJSON(t, repl, `admin.contractInfo.registerUrl(primary, contenthash, "file://"+filename)`, `true`)
	if err != nil {
		t.Errorf("unexpected error registering, got %v", err)
	}

	checkEvalJSON(t, repl, `admin.contractInfo.start()`, `true`)

	// update state
	txc, repl.xeth = repl.xeth.ApplyTestTxs(repl.stateDb, coinbase, txc)

	checkEvalJSON(t, repl, `multiply7.multiply.sendTransaction(6, { from: primary, gas: "1000000", gasPrice: "100000" })`, `undefined`)
	expNotice = "Will multiply 6 by 7."
	if repl.lastConfirm != expNotice {
		t.Errorf("incorrect confirmation message: expected %v, got %v", expNotice, repl.lastConfirm)
	}

}