import os
import pickle
# Gmail API utils
from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request
# Request all access (permission to read/send/receive emails, manage the inbox, and more)
SCOPES = ['https://mail.google.com/']
our_email = 'our_email@gmail.com'
def gmail_authenticate():
creds = None
# the file token.pickle stores the user's access and refresh tokens, and is
# created automatically when the authorization flow completes for the first time
if os.path.exists("token.pickle"):
with open("token.pickle", "rb") as token:
creds = pickle.load(token)
# if there are no (valid) credentials availablle, let the user log in.
if not creds or not creds.valid:
if creds and creds.expired and creds.refresh_token:
creds.refresh(Request())
else:
flow = InstalledAppFlow.from_client_secrets_file('credentials.json', SCOPES)
creds = flow.run_local_server(port=0)
# save the credentials for the next run
with open("token.pickle", "wb") as token:
pickle.dump(creds, token)
return build('gmail', 'v1', credentials=creds)
def search_messages(service, query):
result = service.users().messages().list(userId='me',q=query).execute()
messages = [ ]
if 'messages' in result:
messages.extend(result['messages'])
while 'nextPageToken' in result:
page_token = result['nextPageToken']
result = service.users().messages().list(userId='me',q=query, pageToken=page_token).execute()
if 'messages' in result:
messages.extend(result['messages'])
return messages