def test_expand_token(project: Project):
"""Expand import statement in a Solidity source file, using Token contract."""
expanded, imported_files = expand_contract_imports(project, "CrowdsaleToken.sol")
assert "contract CrowdsaleToken" in expanded
assert 'import "' not in expanded
assert "import '" not in expanded
def test_expand_crowdsale_contract(project: Project):
"""Expand import statement in a Solidity source file."""
expanded, imported_files = expand_contract_imports(project, "Crowdsale.sol")
assert "contract Crowdsale" in expanded
assert 'import "' not in expanded
def verify_contract(project: Project,
chain_name: str,
address: str,
contract_name,
contract_filename: str,
constructor_args: str,
libraries: dict,
optimization=True,
compiler: str = "v0.4.8+commit.60cc1668",
browser_driver="chrome") -> str:
"""Semi-automated contract verified on Etherscan.
Uses a web browser + Selenium auto fill to verify contracts.
See the page in action: https://etherscan.io/verifyContract?a=0xcd111aa492a9c77a367c36e6d6af8e6f212e0c8e
:return: Contract expanded source code
"""
try:
from splinter import Browser
except ImportError:
raise RuntimeError(
"Splinter package must be installed for verification automation")
src, imported_files = expand_contract_imports(project, contract_filename)
if chain_name == "mainnet":
url = "https://etherscan.io/verifyContract"
elif chain_name == "ropsten":
url = "https://ropsten.etherscan.io/verifyContract"
elif chain_name == "kovan":
url = "https://kovan.etherscan.io/verifyContract"
else:
raise RuntimeError("Unknown chain: ".format(chain_name))
# Etherscan does not want 0x prefix
if constructor_args.startswith("0x"):
constructor_args = constructor_args[2:]
with Browser(driver_name=browser_driver) as browser:
browser.visit(url)
browser.fill("ctl00$ContentPlaceHolder1$txtContractAddress", address)
browser.fill("ctl00$ContentPlaceHolder1$txtContractName",
contract_name)
browser.select("ctl00$ContentPlaceHolder1$ddlCompilerVersions",
compiler)
browser.select("ctl00$ContentPlaceHolder1$ddlOptimization",
"1" if optimization else "0")
#browser.fill("ctl00$ContentPlaceHolder1$txtSourceCode", src)
#browser.find_by_name("ctl00$ContentPlaceHolder1$txtSourceCode").first.value = src
_fill_in_textarea_value(
browser,
browser.find_by_name("ctl00$ContentPlaceHolder1$txtSourceCode"),
src)
_fill_in_textarea_value(
browser,
browser.find_by_name(
"ctl00$ContentPlaceHolder1$txtConstructorArguements"),
constructor_args)
#browser.fill("ctl00$ContentPlaceHolder1$txtConstructorArguements", constructor_args)
idx = 1
for library_name, library_address in libraries.items():
browser.fill(
"ctl00$ContentPlaceHolder1$txtLibraryAddress{}".format(idx),
library_address)
browser.fill(
"ctl00$ContentPlaceHolder1$txtLibraryName{}".format(idx),
library_name)
idx += 1
browser.find_by_name("ctl00$ContentPlaceHolder1$btnSubmit").click()
deadline = time.time() + 60
print("Waiting EtherScan to process the contract verification")
while time.time() < deadline:
if browser.is_text_present(
"Successfully generated ByteCode and ABI for Contract Address",
wait_time=1):
return src
if browser.is_text_present("already been verified"):
print("The contract has already been verified")
return src
time.sleep(1.0)
print("Contract verification failed. Check the browser for details.")
input("Press enter to continue")
return src
def verify_contract(project: Project, chain_name: str, address: str, contract_name, contract_filename: str, constructor_args: str, libraries: dict, optimization=True, optimizer_runs=200, compiler: str="v0.4.8+commit.60cc1668", browser_driver="chrome") -> str:
"""Semi-automated contract verified on Etherscan.
Uses a web browser + Selenium auto fill to verify contracts.
See the page in action: https://etherscan.io/verifyContract2
:return: Contract expanded source code
"""
try:
from splinter import Browser
except ImportError:
raise RuntimeError("Splinter package must be installed for verification automation")
src, imported_files = expand_contract_imports(project, contract_filename)
if chain_name == "mainnet":
url = "https://etherscan.io/verifyContract2"
elif chain_name == "rinkeby":
url = "https://rinkeby.etherscan.io/verifyContract2"
elif chain_name == "ropsten":
url = "https://ropsten.etherscan.io/verifyContract2"
elif chain_name == "kovan":
url = "https://kovan.etherscan.io/verifyContract2"
else:
raise RuntimeError("Unknown chain: ".format(chain_name))
# Etherscan does not want 0x prefix
if constructor_args.startswith("0x"):
constructor_args = constructor_args[2:]
with Browser(driver_name=browser_driver) as browser:
browser.visit(url)
browser.fill("ctl00$ContentPlaceHolder1$txtContractAddress", address)
browser.fill("ctl00$ContentPlaceHolder1$txtContractName", contract_name)
browser.select("ctl00$ContentPlaceHolder1$ddlCompilerVersions", compiler)
browser.select("ctl00$ContentPlaceHolder1$ddlOptimization", "1" if optimization else "0")
browser.fill("ctl00$ContentPlaceHolder1$txtRuns", optimizer_runs)
_fill_in_textarea_value(browser, browser.find_by_name("ctl00$ContentPlaceHolder1$txtSourceCode"), src)
_fill_in_textarea_value(browser, browser.find_by_name("ctl00$ContentPlaceHolder1$txtConstructorArguements"), constructor_args)
idx = 1
for library_name, library_address in libraries.items():
browser.fill("ctl00$ContentPlaceHolder1$txtLibraryAddress{}".format(idx),library_address)
browser.fill("ctl00$ContentPlaceHolder1$txtLibraryName{}".format(idx), library_name)
idx += 1
# Give the contract deployment some time to propagate so that Etherscan will find it
time.sleep(30)
browser.find_by_name("ctl00$ContentPlaceHolder1$btnSubmit").click()
deadline = time.time() + 60
print("Waiting EtherScan to process the contract verification")
while time.time() < deadline:
if browser.is_text_present("Successfully generated ByteCode and ABI for Contract Address", wait_time=1):
return src
if browser.is_text_present("already been verified"):
print("The contract has already been verified")
return src
time.sleep(1.0)
print("Contract verification failed. Check the browser for details.")
print("Make sure solc_version in your YAML file matches solc --version output.")
print("Make sure solc optimization settings are the same as what EtherScan thinks.")
input("Press enter to continue")
return src