From f67a4b051545e0a618b5e183656c27a61e86ae74 Mon Sep 17 00:00:00 2001
From: Jan Grewe <jan.grewe@g-node.org>
Date: Mon, 19 Aug 2019 10:43:07 +0200
Subject: [PATCH] add email client sketch

---
 email_client.py | 123 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 email_client.py

diff --git a/email_client.py b/email_client.py
new file mode 100644
index 0000000..bac087f
--- /dev/null
+++ b/email_client.py
@@ -0,0 +1,123 @@
+#!/usr/bin/env python3
+#
+# Very basic example of using Python 3 and IMAP to iterate over emails in a
+# gmail folder/label.  This code is released into the public domain.
+#
+# This script is example code from this blog post:
+# http://www.voidynullness.net/blog/2013/07/25/gmail-email-with-python-via-imap/
+#
+# This is an updated version of the original -- modified to work with Python 3.4.
+#
+import sys
+import imaplib
+import getpass
+import email
+import email.header
+import datetime
+from IPython import embed
+import re
+
+
+EMAIL_ACCOUNT = "bzigr02"
+
+# Use 'INBOX' to read inbox.  Note that whatever folder is specified, 
+# after successfully running this script all emails in that folder 
+# will be marked as read.
+EMAIL_FOLDER = "INBOX"
+
+fields = ["Fist Name", "Last Name", "e-Mail", "Institution", "Phone", "Country", "City", "ZIP code",
+          "Career stage and fees", "Farewell event (Thu 20 Feb)", "Presentation type",
+          "Food preference", "LabTour (Fri 21 Feb)", "Messages"]
+
+
+class Participation(object):
+    _fields = ["Fist Name", "Last Name", "e-Mail", "Institution", "Phone", "Country", "City", "ZIP code",
+               "Career stage and fees", "Farewell event (Thu 20 Feb)", "Presentation type",
+               "Food preference", "LabTour (Fri 21 Feb)", "Messages"]
+    
+    pass
+
+
+def process_mailbox(M):
+    """
+    Do something with emails messages in the folder.  
+    For the sake of this example, print some headers.
+    """
+
+    rv, data = M.search(None, "ALL")
+    if rv != 'OK':
+        print("No messages found!")
+        return
+
+    for num in data[0].split():
+        rv, data = M.fetch(num, '(RFC822)')
+        if rv != 'OK':
+            print("ERROR getting message", num)
+            return
+
+        msg = email.message_from_bytes(data[0][1])
+        hdr = email.header.make_header(email.header.decode_header(msg['Subject']))
+        embed()
+        subject = str(hdr)
+        print('Message %s: %s' % (num, subject))
+        print('Raw Date:', msg['Date'])
+        # Now convert to local date-time
+        date_tuple = email.utils.parsedate_tz(msg['Date'])
+        if date_tuple:
+            local_date = datetime.datetime.fromtimestamp(
+                email.utils.mktime_tz(date_tuple))
+            print ("Local Date:", \
+                local_date.strftime("%a, %d %b %Y %H:%M:%S"))
+
+
+def process_message(msg_index):
+    rv, data = M.fetch(msg_index, '(RFC822)')
+    if rv != 'OK':
+        print("ERROR getting message", num)
+        return
+    msg = email.message_from_bytes(data[0][1])
+    msg_body = msg.get_payload()[0].as_string()
+    msg_body = re.sub(r'=20', ' ', msg_body)
+    msg_body = re.sub(r'=\n', '', msg_body)
+    msg_body = re.sub(r'=E2=82=AC', 'EUR', msg_body)
+    msg_body = re.sub(r'&amp;', 'and', msg_body)
+
+    lines = msg_body.split('\n')
+    
+    embed()
+
+
+def process_registrations(M):
+    rv, msgs = M.search(None, "SUBJECT", "etho2020")
+    print("Found %i registration mails" % len(msgs))
+    for msg_index in msgs:
+        process_message(msg_index)
+
+
+M = imaplib.IMAP4_SSL('mailserv.uni-tuebingen.de')
+passwd = "r.8-*0Fc"
+
+try:
+    rv, data = M.login(EMAIL_ACCOUNT, passwd)
+except imaplib.IMAP4.error:
+    print ("LOGIN FAILED!!! ")
+    sys.exit(1)
+
+
+rv, mailboxes = M.list()
+if rv == 'OK':
+    print("Mailboxes:")
+    print(mailboxes)
+
+rv, data = M.select(EMAIL_FOLDER)
+if rv == 'OK':
+    print("Processing mailbox...\n")
+    # process_mailbox(M)
+
+else:
+    print("ERROR: Unable to open mailbox ", rv)
+
+process_registrations(M)
+
+M.close()
+M.logout()