import hashlib
@main.route('/')
def index():
wxtoken = '5tgb6yhn7ujm'
signature = request.args.get('signature')
timestamp = request.args.get('timestamp')
nonce = request.args.get("nonce");
tmparr = [wxtoken, timestamp, nonce]
tmparr.sort()
tmpstr = ''.join(tmparr)
tmpstr = hashlib.sha1(tmpstr).hexdigest()
if tmpstr == signature:
return request.args.get('echostr')
else:
return ''
