from urllib.parse import parse_qs
-from turbot.rot import rot
from slack import WebClient
import boto3
import requests
-import hashlib
-import hmac
import json
+import os
+
+import turbot.actions
+import turbot.commands
+import turbot.events
+import turbot.views
ssm = boto3.client('ssm')
response = ssm.get_parameter(Name='SLACK_SIGNING_SECRET', WithDecryption=True)
-slack_signing_secret = bytes(response['Parameter']['Value'], 'utf-8')
+slack_signing_secret = response['Parameter']['Value']
+os.environ['SLACK_SIGNING_SECRET'] = slack_signing_secret
+
+# Note: Late import here to have the environment variable above available
+from turbot.slack import slack_is_valid_request # noqa
response = ssm.get_parameter(Name='SLACK_BOT_TOKEN', WithDecryption=True)
slack_bot_token = response['Parameter']['Value']
'body': ''
}
-def slack_is_valid_request(slack_signature, timestamp, body):
- """Returns True if the timestamp and body correspond to signature.
-
- This implements the Slack signature verification using the slack
- signing secret (obtained via an SSM parameter in code above)."""
-
- content = "v0:{}:{}".format(timestamp,body).encode('utf-8')
-
- signature = 'v0=' + hmac.new(slack_signing_secret,
- content,
- hashlib.sha256).hexdigest()
-
- if hmac.compare_digest(signature, slack_signature):
- return True
- else:
- print("Bad signature: {} != {}".format(signature, slack_signature))
- return False
-
def turbot_lambda(event, context):
"""Top-level entry point for our lambda function.
def event_callback_handler(body):
type = body['event']['type']
- if type == 'app_home_opened':
- return app_home_opened_handler(body)
+ if type in turbot.events.events:
+ return turbot.events.events[type](slack_client, body)
return error("Unknown event type: {}".format(type))
-def app_home_opened_handler(body):
- slack_client.views_publish(user_id=body['event']['user'],
- view={
- "type": "home",
- "blocks": [
- {
- "type": "section",
- "text": {
- "type": "mrkdwn",
- "text": "A simple stack of blocks for the simple sample Block Kit Home tab."
- }
- },
- {
- "type": "actions",
- "elements": [
- {
- "type": "button",
- "text": {
- "type": "plain_text",
- "text": "Action A",
- "emoji": True
- }
- },
- {
- "type": "button",
- "text": {
- "type": "plain_text",
- "text": "Action B",
- "emoji": True
- }
- }
- ]
- }
- ]
- })
- return "OK"
-
def turbot_interactive_or_slash_command(event, context):
"""Handler for Slack interactive things (buttons, shortcuts, etc.)
as well as slash commands.
a shortcut or some other interactive element that our app has made
available to the user."""
- print("In turbot_interactive, payload is: {}".format(str(payload)))
-
-def turbot_slash_command(body):
- """Implementation for Slack slash commands.
+ type = payload['type']
- This parses the request and arguments and farms out to
- supporting functions to implement all supported slash commands.
- """
+ if type == 'block_actions':
+ return turbot_block_action(payload)
+ return error("Unrecognized interactive type: {}".format(type))
- command = body['command'][0]
- args = body['text'][0]
+def turbot_block_action(payload):
+ """Handler for Slack interactive block actions
- if (command == "/rotlambda" or command == "/rot"):
- return rot_slash_command(body, args)
+ Specifically, those that have a payload type of 'block_actions'"""
- return error("Command {} not implemented".format(command))
+ actions = payload['actions']
-def rot_slash_command(body, args):
- """Implementation of the /rot command
+ if len(actions) != 1:
+ return error("No support for multiple actions ({}) in a single request"
+ .format(len(actions)))
- The args string should be as follows:
+ action = actions[0]
- [count|*] String to be rotated
+ atype = action['type']
+ avalue = action['value']
- That is, the first word of the string is an optional number (or
- the character '*'). If this is a number it indicates an amount to
- rotate each character in the string. If the count is '*' or is not
- present, then the string will be rotated through all possible 25
- values.
+ if (
+ atype in turbot.actions.actions
+ and avalue in turbot.actions.actions[atype]
+ ):
+ return turbot.actions.actions[atype][avalue](payload)
+ return error("Unknown action of type/value: {}/{}".format(atype, avalue))
- The result of the rotation is returned (with Slack formatting) in
- the body of the response so that Slack will provide it as a reply
- to the user who submitted the slash command."""
+def turbot_slash_command(body):
+ """Implementation for Slack slash commands.
- channel_name = body['channel_name'][0]
- response_url = body['response_url'][0]
- channel_id = body['channel_id'][0]
+ This parses the request and arguments and farms out to
+ supporting functions to implement all supported slash commands.
+ """
- result = rot(args)
+ command = body['command'][0]
+ args = body['text'][0]
- if (channel_name == "directmessage"):
- requests.post(response_url,
- json = {"text": result},
- headers = {"Content-type": "application/json"})
- else:
- slack_client.chat_postMessage(channel=channel_id, text=result)
+ if command in turbot.commands.commands:
+ return turbot.commands.commands[command](slack_client, body, args)
- return {
- 'statusCode': 200,
- 'body': ""
- }
+ return error("Command {} not implemented".format(command))
projects / turbot / blobdiff