# coding=utf-8

#: ## Lab 5 ##
#: 
#: CS-2910 Network Protocols  
#: Dr. Yoder 
#: Fall quarter 2014-2015
#: 
#: | Team members (username) |
#: |:------------------------|
#: | Grace Hopper (hopperg)  |
#: | Donald Knuth (knuthd)   |
#: 

# Socket library
import socket

# SSL/TLS library
import ssl

# base-64 encode/decode
import base64

# Python date/time and timezone modules
import datetime
import time
import pytz

# Module for reading password from console without echoing it
import getpass

# Modules for some file operations
import os
import mimetypes

# Host name for MSOE (hosted) SMTP server
SMTP_SERVER = 'smtp.office365.com'

# Sender/user email
# Used as "From" and as username for authentication
# Modify as needed
SMTP_USER = 'student@msoe.edu'

# The default port for STARTTLS SMTP servers is 587
SMTP_PORT = 587

# SMTP domain name
SMTP_DOMAINNAME = 'msoe.edu'

# Name of the timezone to use for the date field.
# See RFC 5322 for details about how to pick this.
# https://tools.ietf.org/html/rfc5322
TIMEZONE_NAME = '' # Insert the timezone here.

# Main test method to send an SMTP email message
#  Modify data as needed/desired to test your code,
#  but keep the same interface for the smtp_send
#  method.
def main():
    message_info = {}
    message_info['To'] = 'sebern@msoe.edu'
    message_info['From'] = SMTP_USER
    message_info['Subject'] = 'Yet another test message'
    message_info['Date'] = 'Thu, 9 Oct 2014 23:56:09 +0000'
    message_info['Date'] = get_formatted_date()

    print "message_info =",message_info

    message_text = 'Test message_info number 6\r\n\r\nAnother line.'
    
    # Prompt user for email password
    # You may alternatively wish to read the password from a file. Or hard-code it here.
    # If you run Pycharm in Debug mode, it will allow you to enter the password, but it will show up as plain-text.

    password = getpass.getpass()
    smtp_send(password,message_info,message_text)
    
# Send a message via SMTP.
#  password -- string containing user password
#  message_info -- dictionary with string values for the following keys:
#          'To': Recipient address (only one recipient required)
#          'From': Sender address
#          'Date': Date string for current date/time in SMTP format
#          'Subject': Email subject
#      Other keys can be added to support other email headers, etc.
#  Returns:
#      No return value
def smtp_send(password,message_info,message_text):
    pass # Replace this line with your code

# Your code and additional functions go here. (Replace this line, too.)

# ** Do not modify code below this line.

# Utility functions
# You may use these functions to simplify your code.

# Get the current date and time, in a format suitable for an email date header.
# The constant TIMEZONE_NAME should be one of the standard pytz timezone names.
# If you really want to see them all, call the print_all_timezones function.
# Returns:
#      Formatted current date/time value, as a string
def get_formatted_date():
    zone = pytz.timezone(TIMEZONE_NAME)
    print "zone =",zone
    timestamp = datetime.datetime.now(zone)
    timestring = timestamp.strftime('%a, %d %b %Y %H:%M:%S %z') #Sun, 06 Nov 1994 08:49:37 +0000
    return timestring

# Print all pytz timezone strings    
def print_all_timezones():
    for tz in pytz.all_timezones:
        print tz

# You probably won't need the following methods, unless you decide to
# try to handle email attachments or send multi-part messages.
# These advanced capabilities are not required for the lab assignment.

# Try to guess the MIME type of a file (resource), given its path (primarily its file extension)
#  file_path -- string containing path to (resource) file, such as './abc.jpg'
#  Returns:
#      If successful in guessing the MIME type, a string representing the content type, such as 'image/jpeg'
#      Otherwise, None
def get_mime_type(file_path):
    mime_type_and_encoding = mimetypes.guess_type(file_path)
    mime_type = mime_type_and_encoding[0]
    return mime_type

# Try to get the size of a file (resource) in bytes, given its path
#  file_path -- string containing path to (resource) file, such as './abc.html'
#  Returns:
#      If file_path designates a normal file, an integer value representing the the file size in bytes
#      Otherwise (no such file, or path is not a file), None
def get_file_size(file_path):
    # Initially, assume file does not exist
    file_size = None
    if os.path.isfile(file_path):
        file_size = os.stat(file_path).st_size
    return file_size
    
    
main()

# Your report goes here (replace this line)