X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=turbot_lambda%2Fturbot_lambda.py;h=e19e96d801ab0b0ea7d7f502e2c66fa341883b1b;hb=b9fc94a0e63e3eea4e06b869d7c771357714178c;hp=b8d55ad4fcfadb3c60118d7407bed7582fcb6518;hpb=41f4ec8d04b07bb41a1eae1be8305218194e4a0e;p=turbot diff --git a/turbot_lambda/turbot_lambda.py b/turbot_lambda/turbot_lambda.py index b8d55ad..e19e96d 100644 --- a/turbot_lambda/turbot_lambda.py +++ b/turbot_lambda/turbot_lambda.py @@ -1,23 +1,56 @@ from urllib.parse import parse_qs -from turbot.rot import rot -import turbot.views -import turbot.actions from slack import WebClient +import base64 import boto3 import requests -import hashlib -import hmac import json +import pickle +from types import SimpleNamespace +from google.auth.transport.requests import Request +from googleapiclient.discovery import build + +import turbot.interaction +import turbot.events ssm = boto3.client('ssm') -response = ssm.get_parameter(Name='SLACK_SIGNING_SECRET', WithDecryption=True) -slack_signing_secret = bytes(response['Parameter']['Value'], 'utf-8') +# 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'] slack_client = WebClient(slack_bot_token) +response = ssm.get_parameter(Name='GSHEETS_PICKLE_BASE64', WithDecryption=True) +gsheets_pickle_base64 = response['Parameter']['Value'] +gsheets_pickle = base64.b64decode(gsheets_pickle_base64) +gsheets_creds = pickle.loads(gsheets_pickle) +if gsheets_creds: + if gsheets_creds.valid: + print("Loaded valid GSheets credentials from SSM") + else: + gsheets_creds.refresh(Request()) + gsheets_pickle = pickle.dumps(gsheets_creds) + gsheets_pickle_base64_bytes = base64.b64encode(gsheets_pickle) + gsheets_pickle_base64 = gsheets_pickle_base64_bytes.decode('us-ascii') + print("Storing refreshed GSheets credentials into SSM") + ssm.put_parameter(Name='GSHEETS_PICKLE_BASE64', + Type='SecureString', + Value=gsheets_pickle_base64, + Overwrite=True) +service = build('sheets', + 'v4', + credentials=gsheets_creds, + cache_discovery=False) +sheets = service.spreadsheets() + +db = boto3.resource('dynamodb') + +turb = SimpleNamespace() +turb.slack_client = slack_client +turb.db = db +turb.sheets = sheets + def error(message): """Generate an error response for a Slack request @@ -32,24 +65,6 @@ def error(message): '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. @@ -78,12 +93,12 @@ def turbot_lambda(event, context): content_type = headers['content-type'] if (content_type == "application/json"): - return turbot_event_handler(event, context) + return turbot_event_handler(turb, event, context) if (content_type == "application/x-www-form-urlencoded"): - return turbot_interactive_or_slash_command(event, context) + return turbot_interactive_or_slash_command(turb, event, context) return error("Unknown content-type: {}".format(content_type)) -def turbot_event_handler(event, context): +def turbot_event_handler(turb, event, context): """Handler for all subscribed Slack events""" body = json.loads(event['body']) @@ -91,12 +106,12 @@ def turbot_event_handler(event, context): type = body['type'] if type == 'url_verification': - return url_verification_handler(body) + return url_verification_handler(turb, body) if type == 'event_callback': - return event_callback_handler(body) + return event_callback_handler(turb, body) return error("Unknown event type: {}".format(type)) -def url_verification_handler(body): +def url_verification_handler(turb, body): # First, we have to properly respond to url_verification # challenges or else Slack won't let us configure our URL as an @@ -108,20 +123,15 @@ def url_verification_handler(body): 'body': challenge } -def event_callback_handler(body): - type = body['event']['type'] +def event_callback_handler(turb, body): + event = body['event'] + type = event['type'] - if type == 'app_home_opened': - return app_home_opened_handler(body) + if type in turbot.events.events: + return turbot.events.events[type](turb, event) return error("Unknown event type: {}".format(type)) -def app_home_opened_handler(body): - user_id = body['event']['user'] - view = turbot.views.home(user_id, body) - slack_client.views_publish(user_id=user_id, view=view) - return "OK" - -def turbot_interactive_or_slash_command(event, context): +def turbot_interactive_or_slash_command(turb, event, context): """Handler for Slack interactive things (buttons, shortcuts, etc.) as well as slash commands. @@ -134,12 +144,12 @@ def turbot_interactive_or_slash_command(event, context): # The difference is that an interactive thingy has a 'payload' # while a slash command has a 'command' if 'payload' in body: - return turbot_interactive(json.loads(body['payload'][0])) + return turbot_interactive(turb, json.loads(body['payload'][0])) if 'command' in body: - return turbot_slash_command(body) + return turbot_slash_command(turb, body) return error("Unrecognized event (neither interactive nor slash command)") -def turbot_interactive(payload): +def turbot_interactive(turb, payload): """Handler for Slack interactive requests These are the things that come from a user interacting with a button @@ -149,10 +159,14 @@ def turbot_interactive(payload): type = payload['type'] if type == 'block_actions': - return turbot_block_action(payload) + return turbot_block_action(turb, payload) + if type == 'view_submission': + return turbot.interaction.view_submission(turb, payload) + if type == 'shortcut': + return turbot_shortcut(turb, payload) return error("Unrecognized interactive type: {}".format(type)) -def turbot_block_action(payload): +def turbot_block_action(turb, payload): """Handler for Slack interactive block actions Specifically, those that have a payload type of 'block_actions'""" @@ -168,11 +182,23 @@ def turbot_block_action(payload): atype = action['type'] avalue = action['value'] - if atype == 'button' and avalue == 'new_hunt': - return turbot.actions.new_hunt(payload) + if ( + atype in turbot.interaction.actions + and avalue in turbot.interaction.actions[atype] + ): + return turbot.interaction.actions[atype][avalue](turb, payload) return error("Unknown action of type/value: {}/{}".format(atype, avalue)) -def turbot_slash_command(body): +def turbot_shortcut(turb, payload): + """Handler for Slack shortcuts + + These are invoked as either global or message shortcuts by a user.""" + + print("In turbot_shortcut, payload is: {}".format(str(payload))) + + return error("Shortcut interactions not yet implemented") + +def turbot_slash_command(turb, body): """Implementation for Slack slash commands. This parses the request and arguments and farms out to @@ -180,44 +206,12 @@ def turbot_slash_command(body): """ command = body['command'][0] - args = body['text'][0] + if 'text' in body: + args = body['text'][0] + else: + args = '' - if (command == "/rotlambda" or command == "/rot"): - return rot_slash_command(body, args) + if command in turbot.interaction.commands: + return turbot.interaction.commands[command](turb, body, args) return error("Command {} not implemented".format(command)) - -def rot_slash_command(body, args): - """Implementation of the /rot command - - The args string should be as follows: - - [count|*] String to be rotated - - 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. - - 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.""" - - channel_name = body['channel_name'][0] - response_url = body['response_url'][0] - channel_id = body['channel_id'][0] - - result = rot(args) - - 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) - - return { - 'statusCode': 200, - 'body': "" - }