使用 Tweepy 作为 Facebook Messenger 机器人的一部分保存 OAuth 请求令牌时出现问题

Question

我正在使用 Flask 开发一个 Facebook Messenger 机器人，并想利用 Twitter API 来实现该机器人的一项功能。因此，我使用 Tweepy 来简化流程。但是，我无法在我的程序中使用 OAuth。我认为问题的根源是请求令牌未保存或未正确接收，因为当我执行 auth.get_access_token 时出现错误 - "OAuth has no object request_token" 或 "string indices must be integers" 取决于我的方式正在保存 OAuth 处理程序实例。有时，它也无法获取 request_token 并且不会将 link 发送回用户。我试图通过在我的 oauth_verification() 函数中打印出请求令牌来检查这一点，但它是空白的。我已经坚持了几个小时，任何帮助将不胜感激。我的代码如下：

PAT = '[pat here]'
auth = tweepy.OAuthHandler('[key here]', '[secret here]')
auth_req_token = ''

@app.route('/', methods=['GET'])
def handle_verification():
  print("Handling Verification.")
  if request.args.get('hub.verify_token', '') == '[verification token]':
    print("Verification successful!")
    return request.args.get('hub.challenge', '')
  else:
    print("Verification failed!")
    return 'Error, wrong validation token'

@app.route('/', methods=['POST'])
def handle_messages():
  print("Handling Messages")
  payload = request.get_data()
  print(payload)
  for sender, message in messaging_events(payload):
    print("Incoming from %s: %s" % (sender, message))
    parse_message(PAT, sender, message)
  return "ok"

def parse_message(PAT, sender, message):
  original_message = message
  message = str(message.decode('unicode_escape'))
  message = message.replace("?", "")
  if message.isdigit():
    oauth_verification(PAT, sender, original_message.decode("utf-8"))
  else:
    split_msg = message.split(" ")
    print(split_msg)
    try:
      platform = split_msg[split_msg.index("followers") - 1]
      does_location = split_msg.index("does") + 1
      have_location = split_msg.index("have")
      name = split_msg[does_location:have_location]
      name = " ".join(name)
      print("Name: " +name + " Platform: " + platform)
      init_oauth(name, PAT, sender)
    except ValueError:
      reply_error(PAT, sender)

def init_oauth(name, token, recipient):
  try:
    redirect_url = auth.get_authorization_url()
    auth_req_token = auth.request_token
    r = requests.post("https://graph.facebook.com/v2.6/me/messages",
    params={"access_token": token},
    data=json.dumps({
      "recipient": {"id": recipient},
      "message": {"text": "Please login to Twitter, and reply with your verification code " + redirect_url}
    }),
    headers={'Content-type': 'application/json'})
  except tweepy.TweepError:
      print('Error! Failed to get request token.')

def oauth_verification(token, recipient, verifier):
  auth.request_token = auth_req_token
  try:
    auth.get_access_token(verifier) # issue is here - I am able to get authentication link, but not able to get access token
    api = tweepy.API(auth)
    r = requests.post("https://graph.facebook.com/v2.6/me/messages",
    params={"access_token": token},
    data=json.dumps({
      "recipient": {"id": recipient},
      "message": {"text": "Successfully authenticated Twitter!"}
    }),
    headers={'Content-type': 'application/json'})
  except tweepy.TweepError:
      print('Error! Failed to get access token.')

Answer 1

由于auth_req_token是一个全局变量，需要使用global关键字来改变它在init_oauth中的值：

def init_oauth(name, token, recipient):
    global auth_req_token
    try:
        redirect_url = auth.get_authorization_url()
        auth_req_token = auth.request_token
        # ...

使用 Tweepy 作为 Facebook Messenger 机器人的一部分保存 OAuth 请求令牌时出现问题

Issue with saving OAuth request token using Tweepy as part of Facebook Messenger bot

python

flask

tweepy

facebook-messenger-bot