cic-cli/cic/contract/helpers.py
William Luke 9ae198f0f6
All checks were successful
continuous-integration/drone/pr Build is passing
continuous-integration/drone/push Build is passing
chore: download contracts to tmp dir
2022-03-01 17:06:01 +03:00

130 lines
4.3 KiB
Python

# standard imports
import os
import logging
import sys
import json
import requests
import importlib
import tempfile
import hashlib
# local imports
from cic.writers import OutputWriter
log = logging.getLogger(__name__)
CONTRACTS = [
{
"url": "https://gitlab.com/cicnet/eth-erc20/-/raw/master/python/giftable_erc20_token/data/GiftableToken",
"name": "Giftable Token",
},
{
"url": "https://gitlab.com/cicnet/erc20-demurrage-token/-/raw/master/python/erc20_demurrage_token/data/DemurrageTokenSingleNocap",
"name": "Demurrage Token Single No Cap",
},
{
"url":"https://gitlab.com/cicnet/erc20-demurrage-token/-/raw/lash/gas-safety-valve/python/erc20_demurrage_token/data/DemurrageTokenSingleNocap",
"name": "Demurrage Token Single No Cap (gas-safety-valve)",
}
]
# Download File from Url
def download_file(url: str, filename=None) -> (str, bytes):
directory = tempfile.gettempdir()
filename = filename if filename else url.split("/")[-1]
hash_object = hashlib.md5(url.encode())
path = os.path.join(directory, hash_object.hexdigest())
log.debug(f"Downloading {filename} to {path}")
if not os.path.exists(path):
log.debug(f"Downloading {filename}")
r = requests.get(url, allow_redirects=True)
with open(path, "wb") as f:
f.write(r.content)
return path
return path
def get_contract_args(data: list):
for item in data:
if item["type"] == "constructor":
return item["inputs"]
raise Exception("No constructor found in contract")
def select_contract():
print("Contracts:")
print("\t C - Custom (path/url to contract)")
for idx, contract in enumerate(CONTRACTS):
print(f"\t {idx} - {contract['name']}")
val = input("Select contract (C,0,1..): ")
if val.isdigit() and int(val) < len(CONTRACTS):
contract = CONTRACTS[int(val)]
bin_path = os.path.abspath(download_file(contract["url"] + ".bin"))
json_path = download_file(contract["url"] + ".json")
elif val == "C":
possible_bin_location = input("Enter a path or url to a contract.bin: ")
if possible_bin_location.startswith('http'):
# possible_bin_location is url
bin_path = download_file(possible_bin_location)
else:
# possible_bin_location is path
if os.path.exists(possible_bin_location):
bin_path = os.path.abspath(possible_bin_location)
else:
raise Exception(f"File {possible_bin_location} does not exist")
possible_json_path = val.replace(".bin", ".json")
if os.path.exists(possible_json_path):
json_path = possible_json_path
else:
print("Invalid selection")
sys.exit(1)
contract_extra_args = []
contract_extra_args_types = []
if os.path.exists(json_path):
with open(json_path, encoding="utf-8") as f:
json_data = json.load(f)
for contract_arg in get_contract_args(json_data):
arg_name = contract_arg.get("name")
arg_type = contract_arg.get("type")
if arg_name not in ["_decimals", "_name", "_symbol"]:
val = input(f"Enter value for {arg_name} ({arg_type}): ")
contract_extra_args.append(val)
if arg_type == "uint128":
contract_extra_args_types.append("uint256")
else:
contract_extra_args_types.append(arg_type)
return {
"bin_path": bin_path,
"json_path": json_path,
"extra_args": contract_extra_args,
"extra_args_types": contract_extra_args_types,
}
Writers = {
"meta": OutputWriter,
"attachment": OutputWriter,
"proof": OutputWriter,
"ext": OutputWriter,
}
def init_writers_from_config(config) -> Writers:
writers: Writers = {
"meta": None,
"attachment": None,
"proof": None,
"ext": None,
}
for key in writers:
writer_config_name = f"CIC_CORE_{key.upper()}_WRITER"
(module_name, attribute_name) = config.get(writer_config_name).rsplit(".", maxsplit=1)
mod = importlib.import_module(module_name)
writer = getattr(mod, attribute_name)
writers[key] = writer
return writers