Preferably using Python or Java, I want to compose an email and save it into gmail drafts without user intervention,
Here's a Python script to access a Gmail account. First you need to generate an OAuth token. Download Google's xoauth.py module and run it. It will walk you through the steps. You'll get a url to obtain a verification code -- paste this into the script and it will spit out your token and secret:
% python xoauth.py --generate_oauth_token [email protected]
Once you've obtained your token and secret, copy them into the Python script below. It uses xoauth.py to authenticate the IMAP client, connects to IMAP, constructs a message and drops it into the Drafts folder.
import email.message
import imaplib
import random
import time
import xoauth
MY_EMAIL = '[email protected]'
MY_TOKEN = '<token>'
MY_SECRET = '<secret>'
# construct the oauth access token
nonce = str(random.randrange(2**64 - 1))
timestamp = str(int(time.time()))
consumer = xoauth.OAuthEntity('anonymous', 'anonymous')
access = xoauth.OAuthEntity(MY_TOKEN, MY_SECRET)
token = xoauth.GenerateXOauthString(
consumer, access, MY_EMAIL, 'imap', MY_EMAIL, nonce, timestamp)
# connect to gmail's imap service.
imap = imaplib.IMAP4_SSL('imap.googlemail.com')
imap.debug = 4
imap.authenticate('XOAUTH', lambda x: token)
# create the message
msg = email.message.Message()
msg['Subject'] = 'subject of the message'
msg['From'] = MY_EMAIL
msg['To'] = MY_EMAIL
msg.set_payload('Body of the message')
# append the message to the drafts folder
now = imaplib.Time2Internaldate(time.time())
imap.append('[Gmail]/Drafts', '', now, str(msg))
imap.logout()