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Fix shell injection vulnerability in ganache.py #6

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Fix shell injection vulnerability in ganache.py #6

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9 changes: 5 additions & 4 deletions build/ganache.py
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Original file line number Diff line number Diff line change
@@ -1,20 +1,21 @@
#!/usr/bin/python3

import json
import os
import subprocess
import sys
from pprint import pprint

print(sys.argv)
if len(sys.argv) < 2:
print("you must provide accounts file")
exit(1)

# read the accounts (key, balance) and start ganache-cli with those accounts
cmd = ""
args = ["ganache-cli", "--allowUnlimitedContractSize", "--gasLimit", "0xfffffffffff"]
with open(sys.argv[1]) as f:
data = json.load(f)
for account in data['accounts']:
cmd = "{} --account=\"0x{},{}\"".format(cmd, account['key'], account['amount'])
args.append("--account=0x{},{}".format(account['key'], account['amount']))

process = subprocess.call(["ganache-cli --allowUnlimitedContractSize --gasLimit 0xfffffffffff {} > /dev/null".format(cmd)], shell=True)
with open(os.devnull, 'w') as devnull:
process = subprocess.call(args, stdout=devnull)