nickoala/0_python_email.md

## 0_python_email.md

      
    Raw
  

              0_python_email.md
            
          
    Use Python to:

send a plain text email
send an email with attachment
receive and filter emails according to some criteria


## 1_sendtext.py
import smtplib
from email.mime.text import MIMEText

smtp_ssl_host = 'smtp.gmail.com'  # smtp.mail.yahoo.com
smtp_ssl_port = 465
username = 'USERNAME or EMAIL ADDRESS'
password = 'PASSWORD'
sender = 'ME@EXAMPLE.COM'
targets = ['HE@EXAMPLE.COM', 'SHE@EXAMPLE.COM']

msg = MIMEText('Hi, how are you today?')
msg['Subject'] = 'Hello'
msg['From'] = sender
msg['To'] = ', '.join(targets)

server = smtplib.SMTP_SSL(smtp_ssl_host, smtp_ssl_port)
server.login(username, password)
server.sendmail(sender, targets, msg.as_string())
server.quit()

## 2_sendattach.py
import os
import smtplib
from email.mime.text import MIMEText
from email.mime.image import MIMEImage
from email.mime.multipart import MIMEMultipart

smtp_ssl_host = 'smtp.gmail.com'  # smtp.mail.yahoo.com
smtp_ssl_port = 465
username = 'USERNAME or EMAIL ADDRESS'
password = 'PASSWORD'
sender = 'ME@EXAMPLE.COM'
targets = ['HE@EXAMPLE.COM', 'SHE@EXAMPLE.COM']

msg = MIMEMultipart()
msg['Subject'] = 'I have a picture'
msg['From'] = sender
msg['To'] = ', '.join(targets)

txt = MIMEText('I just bought a new camera.')
msg.attach(txt)

filepath = '/path/to/image/file'
with open(filepath, 'rb') as f:
    img = MIMEImage(f.read())

img.add_header('Content-Disposition',
               'attachment',
               filename=os.path.basename(filepath))
msg.attach(img)

server = smtplib.SMTP_SSL(smtp_ssl_host, smtp_ssl_port)
server.login(username, password)
server.sendmail(sender, targets, msg.as_string())
server.quit()

## 3_emailcheck.py
import time
from itertools import chain
import email
import imaplib

imap_ssl_host = 'imap.gmail.com'  # imap.mail.yahoo.com
imap_ssl_port = 993
username = 'USERNAME or EMAIL ADDRESS'
password = 'PASSWORD'

# Restrict mail search. Be very specific.
# Machine should be very selective to receive messages.
criteria = {
    'FROM':    'PRIVILEGED EMAIL ADDRESS',
    'SUBJECT': 'SPECIAL SUBJECT LINE',
    'BODY':    'SECRET SIGNATURE',
}
uid_max = 0


def search_string(uid_max, criteria):
    c = list(map(lambda t: (t[0], '"'+str(t[1])+'"'), criteria.items())) + [('UID', '%d:*' % (uid_max+1))]
    return '(%s)' % ' '.join(chain(*c))
    # Produce search string in IMAP format:
    #   e.g. (FROM "me@gmail.com" SUBJECT "abcde" BODY "123456789" UID 9999:*)


def get_first_text_block(msg):
    type = msg.get_content_maintype()

    if type == 'multipart':
        for part in msg.get_payload():
            if part.get_content_maintype() == 'text':
                return part.get_payload()
    elif type == 'text':
        return msg.get_payload()


server = imaplib.IMAP4_SSL(imap_ssl_host, imap_ssl_port)
server.login(username, password)
server.select('INBOX')

result, data = server.uid('search', None, search_string(uid_max, criteria))

uids = [int(s) for s in data[0].split()]
if uids:
    uid_max = max(uids)
    # Initialize `uid_max`. Any UID less than or equal to `uid_max` will be ignored subsequently.

server.logout()


# Keep checking messages ...
# I don't like using IDLE because Yahoo does not support it.
while 1:
    # Have to login/logout each time because that's the only way to get fresh results.

    server = imaplib.IMAP4_SSL(imap_ssl_host, imap_ssl_port)
    server.login(username, password)
    server.select('INBOX')

    result, data = server.uid('search', None, search_string(uid_max, criteria))

    uids = [int(s) for s in data[0].split()]
    for uid in uids:
        # Have to check again because Gmail sometimes does not obey UID criterion.
        if uid > uid_max:
            result, data = server.uid('fetch', uid, '(RFC822)')  # fetch entire message
            msg = email.message_from_string(data[0][1])

            uid_max = uid

            text = get_first_text_block(msg)
            print 'New message :::::::::::::::::::::'
            print text

    server.logout()
    time.sleep(1)
	import smtplib
	from email.mime.text import MIMEText

	smtp_ssl_host = 'smtp.gmail.com' # smtp.mail.yahoo.com
	smtp_ssl_port = 465
	username = 'USERNAME or EMAIL ADDRESS'
	password = 'PASSWORD'
	sender = 'ME@EXAMPLE.COM'
	targets = ['HE@EXAMPLE.COM', 'SHE@EXAMPLE.COM']

	msg = MIMEText('Hi, how are you today?')
	msg['Subject'] = 'Hello'
	msg['From'] = sender
	msg['To'] = ', '.join(targets)

	server = smtplib.SMTP_SSL(smtp_ssl_host, smtp_ssl_port)
	server.login(username, password)
	server.sendmail(sender, targets, msg.as_string())
	server.quit()
	import os
	import smtplib
	from email.mime.text import MIMEText
	from email.mime.image import MIMEImage
	from email.mime.multipart import MIMEMultipart

	smtp_ssl_host = 'smtp.gmail.com' # smtp.mail.yahoo.com
	smtp_ssl_port = 465
	username = 'USERNAME or EMAIL ADDRESS'
	password = 'PASSWORD'
	sender = 'ME@EXAMPLE.COM'
	targets = ['HE@EXAMPLE.COM', 'SHE@EXAMPLE.COM']

	msg = MIMEMultipart()
	msg['Subject'] = 'I have a picture'
	msg['From'] = sender
	msg['To'] = ', '.join(targets)

	txt = MIMEText('I just bought a new camera.')
	msg.attach(txt)

	filepath = '/path/to/image/file'
	with open(filepath, 'rb') as f:
	img = MIMEImage(f.read())

	img.add_header('Content-Disposition',
	'attachment',
	filename=os.path.basename(filepath))
	msg.attach(img)

	server = smtplib.SMTP_SSL(smtp_ssl_host, smtp_ssl_port)
	server.login(username, password)
	server.sendmail(sender, targets, msg.as_string())
	server.quit()
	import time
	from itertools import chain
	import email
	import imaplib

	imap_ssl_host = 'imap.gmail.com' # imap.mail.yahoo.com
	imap_ssl_port = 993
	username = 'USERNAME or EMAIL ADDRESS'
	password = 'PASSWORD'

	# Restrict mail search. Be very specific.
	# Machine should be very selective to receive messages.
	criteria = {
	'FROM': 'PRIVILEGED EMAIL ADDRESS',
	'SUBJECT': 'SPECIAL SUBJECT LINE',
	'BODY': 'SECRET SIGNATURE',
	}
	uid_max = 0


	def search_string(uid_max, criteria):
	c = list(map(lambda t: (t[0], '"'+str(t[1])+'"'), criteria.items())) + [('UID', '%d:*' % (uid_max+1))]
	return '(%s)' % ' '.join(chain(*c))
	# Produce search string in IMAP format:
	# e.g. (FROM "me@gmail.com" SUBJECT "abcde" BODY "123456789" UID 9999:*)


	def get_first_text_block(msg):
	type = msg.get_content_maintype()

	if type == 'multipart':
	for part in msg.get_payload():
	if part.get_content_maintype() == 'text':
	return part.get_payload()
	elif type == 'text':
	return msg.get_payload()


	server = imaplib.IMAP4_SSL(imap_ssl_host, imap_ssl_port)
	server.login(username, password)
	server.select('INBOX')

	result, data = server.uid('search', None, search_string(uid_max, criteria))

	uids = [int(s) for s in data[0].split()]
	if uids:
	uid_max = max(uids)
	# Initialize `uid_max`. Any UID less than or equal to `uid_max` will be ignored subsequently.

	server.logout()


	# Keep checking messages ...
	# I don't like using IDLE because Yahoo does not support it.
	while 1:
	# Have to login/logout each time because that's the only way to get fresh results.

	server = imaplib.IMAP4_SSL(imap_ssl_host, imap_ssl_port)
	server.login(username, password)
	server.select('INBOX')

	result, data = server.uid('search', None, search_string(uid_max, criteria))

	uids = [int(s) for s in data[0].split()]
	for uid in uids:
	# Have to check again because Gmail sometimes does not obey UID criterion.
	if uid > uid_max:
	result, data = server.uid('fetch', uid, '(RFC822)') # fetch entire message
	msg = email.message_from_string(data[0][1])

	uid_max = uid

	text = get_first_text_block(msg)
	print 'New message :::::::::::::::::::::'
	print text

	server.logout()
	time.sleep(1)