Created
March 19, 2023 15:30
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Use this to parse smart contract source code downloaded from Etherscan API
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| import json | |
| def is_single_file_contract(source_code: str) -> bool: | |
| return ( | |
| source_code.startswith("pragma") or | |
| source_code.startswith("//") or | |
| source_code.startswith("\r\n") or | |
| source_code.startswith("/*") | |
| ) | |
| def is_symbol_object(network: str) -> bool: | |
| return "bsc" in network | |
| def is_json_string(s: str) -> bool: | |
| try: | |
| json.loads(s) | |
| except Exception: | |
| return False | |
| return True | |
| def parse_source_code_object(source_code: str, network: str): | |
| if is_symbol_object(network): | |
| double_curly_braces_pattern = r'^\{\{(.|\r\n)*\}\}$' | |
| if re.match(double_curly_braces_pattern, source_code): | |
| source_code = source_code[1:-1] | |
| return json.loads(source_code)["sources"] | |
| return json.loads(source_code) | |
| elif is_json_string(source_code): | |
| return json.loads(source_code) | |
| return json.loads(source_code[1:-1]) | |
| def get_sources_object(parsed_source_code: dict, network: str): | |
| if is_symbol_object(network): | |
| return parsed_source_code.items() | |
| if "sources" in parsed_source_code: | |
| return parsed_source_code["sources"].items() | |
| return parsed_source_code.items() | |
| def get_contract_content_list(source_codes: list, network: str) -> list: | |
| contract_content = [] | |
| for source_code in source_codes: | |
| if is_single_file_contract(source_code["SourceCode"]): | |
| contract_content.append({ | |
| "path": "contract.sol", | |
| "content": source_code["SourceCode"] | |
| }) | |
| else: | |
| parsed_source_code = parse_source_code_object( | |
| source_code["SourceCode"], network | |
| ) | |
| source_objects = [ | |
| {"path": path, "content": content["content"]} | |
| for path, content in get_sources_object(parsed_source_code, network) | |
| ] | |
| contract_content.extend(source_objects) | |
| return contract_content | |
| def copy_to_clipboard(data: str): | |
| import pyperclip | |
| pyperclip.copy(data) | |
| def cn(*classes: str) -> str: | |
| return " ".join(filter(bool, classes)) | |
| contract = 'contract_address' | |
| api_key = 'your_etherscan_apikey' | |
| url = f'https://api.etherscan.io/api?module=contract&action=getsourcecode&address={contract}&apikey={api_key}' | |
| result = rs.get(url) | |
| contracts = result.json()['result'][0]['SourceCode'] | |
| parse_source_code_object(contracts, 'mainnet')['sources'] |
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