from io import StringIO
template = """
<!doctype html>
<html>
<head>
<style>
body {{ font-family: sans-serif; padding-left: 30px; padding-top: 15px; }}
</style>
</head>
<body>
<h1>Welcome to EasyCTF!</h1>
<p>The flag is just below:</p>
<!-- {flag} -->
</body>
</html>
"""
flag = "hidden_from_the_masses"
alphabet = "abcdefghijklmnopqrstuvwxyz"
def get_problem(random):
salt = "".join([random.choice("0123456789abcdef") for i in range(6)])
return salt
def generate(random):
salt = get_problem(random)
contents = template.format(flag=("easyctf{%s}" % "{}_{}".format(flag, salt)))
return dict(files={
"index.html": StringIO(contents)
})
def grade(random, key):
salt = get_problem(random)
if(key.find("{}_{}".format(flag, salt)) != -1):
return True, "Good job!"
return False, "Try again."
