flask微信公衆平臺驗證

from flask import Flask
from flask import request
import hashlib

app = Flask(__name__)

@app.route('/', methods=['GET', 'POST'])
def index():
	if request.method == 'GET':
		signature = request.args.get('signature')		
		timestamp = request.args.get('timestamp')
		nonce = request.args.get('nonce')
		token = 'zzmtkj'

		echostr = request.args.get('echostr')
		data = [token, timestamp, nonce]
		data.sort()
		temp = ''.join(data)		
		sha = hashlib.sha1(temp.encode('utf-8'))		
		sha1_signature = sha.hexdigest()		

		if signature == sha1_signature:
			return echostr