#!/usr/bin/env python3
+from flask import current_app
+from slack import WebClient
+from slack.signature import SignatureVerifier
from flask import Flask, request, make_response
from slackeventsapi import SlackEventAdapter
-from turbot.slack import slack_is_valid_request, slack_send_reply
+
import os
+import requests
import threading
from turbot.rot import rot
-from turbot.slack import slack_send_message
from turbot.sheets import sheets_create
app = Flask(__name__)
slack_signing_secret = os.environ['SLACK_SIGNING_SECRET']
-slack_events = SlackEventAdapter(slack_signing_secret, "/slack/events", app)
+slack_events = SlackEventAdapter(slack_signing_secret, "/events", app)
+
+slack_bot_token = os.environ['SLACK_BOT_TOKEN']
+
+signature_verifier = SignatureVerifier(slack_signing_secret)
+slack_client = WebClient(slack_bot_token)
+
+def slack_is_valid_request(request):
+ """Returns true if request actually came from Slack.
+
+ By means of checking the requests signature together with the slack
+ signing key.
+
+ Note: If flask is in debug mode, this function will always return true."""
+
+ if current_app.debug:
+ return True
+
+ data = request.get_data()
+ headers = request.headers
+
+ return signature_verifier.is_valid_request(data, headers)
+
+def slack_send_reply(request, text):
+ """Send a Slack message as a reply to a specified request.
+
+ If the request is associated with a direct message, the reply is
+ made by using the "response_url" from the request. Otherwise, the
+ reply will be sent to the channel associated with the request.
+
+ Note: If flask is in debug mode, this function will just print the
+ text to stdout."""
+
+ app = current_app
+ channel_name = request.form.get('channel_name')
+ response_url = request.form.get('response_url')
+ channel = request.form.get('channel_id')
+
+ if (app.debug):
+ print("Sending message to channel '{}': {}".format(channel, text))
+ return
+
+ if (channel_name == "directmessage"):
+ resp = requests.post(response_url,
+ json = {"text": text},
+ headers = {"Content-type": "application/json"})
+ if (resp.status_code != 200):
+ app.logger.error("Error posting request to Slack: " + resp.text)
+ else:
+ slack_send_message(channel, text)
+
+def slack_send_message(channel, text):
+ """Send a Slack message to a specified channel."""
+
+ slack_client.chat_postMessage(channel=channel, text=text)
@app.route('/rot', methods = ['POST'])
def rot_route():