#!/usr/bin/env python3
# -*- coding: utf-8 -*-

# --------------------------------------------------------------
# ip2e (IP to email) - Run ip2e daemon.                        |
# Created by clamsawd (clamsawd@openmailbox.org)               |
# Licensed by GPL v.3                                          |
# Last update: 29-10-2015                                      |
#                                                              |
# Dependences: curl or wget                                    |
# Compatible with Python 3.x                                   |
# --------------------------------------------------------------
version="0.7-beta"

#Import python-modules
import subprocess
import os
import sys
import time
import smtplib

#Check if your system use Python 3.x
if sys.version_info<(3,0):
	print ("")
	print ("You need python 3.x to run this program.")
	print ("")
	exit(1)

#Function to clear screen
def ClearScreen():
	if os.name == "posix":
		os.system("clear")
	elif os.name == "nt":
		os.system("cls")
	else:
		print ("Error: Unable clear screen")
					
#Detect system & PATH of user folder
if os.name == "posix":
	os.chdir(os.environ["HOME"])
	print ("POSIX detected")
elif os.name == "nt":
	os.chdir(os.environ["USERPROFILE"])
	print ("Windows detected")

if not os.path.exists(".ip2e"):
	os.makedirs(".ip2e")
	os.chdir(".ip2e")
if os.path.exists(".ip2e"):
	os.chdir(".ip2e")

#Check if exists 'ip2e-conf.py'
def createip2ecf():
	ip2ecf=open('ip2e-conf.py','w')
	ip2ecf.close()
def writeip2ecf():
	ip2ecf=open('ip2e-conf.py','a')
	ip2ecf.write('# sample configuration file of ip2e\n')
	ip2ecf.write('\n')
	ip2ecf.write('FromEmail="ip2e@daemon"\n')
	ip2ecf.write('FromEmailUser="unknown"\n')
	ip2ecf.write('FromEmailPass="password-here"\n')
	ip2ecf.write('SmtpFromEmail="smtp.email.com"\n')
	ip2ecf.write('ToEmail="unknown@email.com"\n')
	ip2ecf.close()

if os.path.isfile("ip2e-conf.py"):
	print ("ip2e-conf.py exists")
else:
	print ("ip2e-conf.py created")
	createip2ecf()
	writeip2ecf()

#Check if exists 'current-ip.py'
def createip2eIPcf():
	ip2eIPcf=open('current-ip.py','w')
	ip2eIPcf.close()
def writeip2eIPcf():
	ip2eIPcf=open('current-ip.py','a')
	ip2eIPcf.write('CurrentIP="0.0.0.0"\n')
	ip2eIPcf.close()
	
if os.path.isfile("current-ip.py"):
	print ("current-ip.py exists")
else:
	print ("current-ip.py created")
	createip2eIPcf()
	writeip2eIPcf()

#Check if curl is installed
try:
	curlCheck = Popen(['curl', '--version'], stdout=PIPE, stderr=PIPE)
	curlCheck.stderr.close()
except:
	ClearScreen()
	print ("")
	print ("Error: 'curl' is not installed!")
	print ("")
	print ("Help:")
	print ("  * http://curl.haxx.se/download.html")
	print ("  * http://www.paehl.com/open_source/?CURL_7.45.0")
	print ("")
	PauseExit=input("Press ENTER to exit ")
	exit(1)

#Import variables from ip2e-conf.py
exec(open("ip2e-conf.py").read())

#Import Windows colors scheme
def GreenColor():
	os.system("color 2")
def RedColor():
	os.system("color 4")
def OrangeColor():
	os.system("color 6")

#Check if exists a previous log.file.
if os.path.isfile("ip2e.log"):
	os.remove("ip2e.log")
createlog=open('ip2e.log','w')
createlog.close()

#Run ip2e daemon
ClearScreen()
editlog=open('ip2e.log','a')
CurrentTime = time.strftime("%H:%M")
if os.name == "posix":
	print (chr(27)+"[1;32m"+"[ip2e-daemon] ["+CurrentTime+"] Initialized ip2e-daemon v"+version+" (Ctrl+C to stop)")
elif os.name == "nt":
	GreenColor()
	print ("[ip2e-daemon] ["+CurrentTime+"] Initialized ip2e-daemon v"+version+" (Ctrl+C to stop)")
if os.name == "posix":
	print (chr(27)+"[1;32m"+"[ip2e-daemon] ["+CurrentTime+"] Log in "+os.environ["HOME"]+"/.ip2e/ip2e.log")
elif os.name == "nt":
	GreenColor()
	print ("[ip2e-daemon] ["+CurrentTime+"] Log in "+os.environ["USERPROFILE"]+"\.ip2e\\ip2e.log")
editlog.write("[ip2e-daemon] ["+CurrentTime+"] Initialized ip2e-daemon v"+version+"\n")
if os.name == "posix":
	print (chr(27)+"[1;33m"+"[ip2e-daemon] ["+CurrentTime+"] Waiting 60 seconds...")
elif os.name == "nt":
	OrangeColor()
	print ("[ip2e-daemon] ["+CurrentTime+"] Waiting 60 seconds...")
editlog.write("[ip2e-daemon] ["+CurrentTime+"] Waiting 60 seconds...\n")
editlog.close()
time.sleep(60)

PublicIP = 1

while PublicIP <= 2:
	GetCurrentIP = 1
	while GetCurrentIP <= 2:
		CurrentTime = time.strftime("%H:%M")
		if os.name == "posix":
			print (chr(27)+"[1;33m"+"[ip2e-daemon] ["+CurrentTime+"] IP Updating...")
		elif os.name == "nt":
			OrangeColor()
			print ("[ip2e-daemon] ["+CurrentTime+"] IP Updating...")
		editlog=open('ip2e.log','a')
		editlog.write("[ip2e-daemon] ["+CurrentTime+"] IP Updating...\n")
		NewIPRaw = os.popen('curl -s icanhazip.com').read()
		NewIP = NewIPRaw.strip()
		#NewIP = os.popen('curl -s http://ip.appspot.com/').read()
		#NewIP = os.popen('curl -s ident.me').read()
		#NewIPRaw = os.popen('curl -s ifconfig.me').read()
		#NewIP = NewIPRaw.strip()
		if NewIP != "":
			GetCurrentIP += 2
		else:
			CurrentTime = time.strftime("%H:%M")
			if os.name == "posix":
				print (chr(27)+"[1;31m"+"[ip2e-daemon] ["+CurrentTime+"] Error getting IP")
				print (chr(27)+"[1;33m"+"[ip2e-daemon] ["+CurrentTime+"] Retrying in 5 seconds...")
			elif os.name == "nt":
				RedColor()
				print ("[ip2e-daemon] ["+CurrentTime+"] Error getting IP")
				print ("[ip2e-daemon] ["+CurrentTime+"] Retrying in 5 seconds...")
			editlog.write("[ip2e-daemon] ["+CurrentTime+"] Error getting IP\n")
			editlog.write("[ip2e-daemon] ["+CurrentTime+"] Retrying in 5 seconds...\n")
			time.sleep(5)
	exec(open("current-ip.py").read())
	if CurrentIP == NewIP:
		CurrentTime = time.strftime("%H:%M")
		if os.name == "posix":
			print (chr(27)+"[1;32m"+"[ip2e-daemon] ["+CurrentTime+"] IP has not changed")
		elif os.name == "nt":
			GreenColor()
			print ("[ip2e-daemon] ["+CurrentTime+"] IP has not changed")
		editlog.write("[ip2e-daemon] ["+CurrentTime+"] IP has not changed\n")
	else:
		CurrentTime = time.strftime("%H:%M")
		if os.name == "posix":
			print (chr(27)+"[1;32m"+"[ip2e-daemon] ["+CurrentTime+"] New IP - From "+CurrentIP+" to "+NewIP)
		elif os.name == "nt":
			GreenColor()
			print ("[ip2e-daemon] ["+CurrentTime+"] New IP - From "+CurrentIP+" to "+NewIP)
		editlog.write("[ip2e-daemon] ["+CurrentTime+"] New IP - From "+CurrentIP+" to "+NewIP+"\n")
		SendEmailOK = 1
		while SendEmailOK <= 2:
			CurrentTime = time.strftime("%H:%M")
			#Sending email using smtplib
			SmtpSubject = "[ip2e-daemon] ["+CurrentTime+"] IP has changed"
			SmtpHeader = "From: "+FromEmail+"\n"+"To: "+ToEmail+"\n"+"Subject: "+SmtpSubject+"\n"
			SmtpBodyMessage = SmtpHeader+"\n"+"[ip2e] New IP is "+NewIP+"\n\n"
			try:
				server = smtplib.SMTP(SmtpFromEmail)
				server.ehlo()
				server.starttls()
				server.ehlo()
				server.login(FromEmailUser,FromEmailPass)
			except:
				if os.name == "posix":
					print (chr(27)+"[1;31m"+"[ip2e-daemon] ["+CurrentTime+"] Failed to connect ("+SmtpFromEmail+")")
					print (chr(27)+"[1;31m"+"[ip2e-daemon] ["+CurrentTime+"] Check your settings [Aborted]")
				elif os.name == "nt":
					RedColor()
					print ("[ip2e-daemon] ["+CurrentTime+"] Failed to connect ("+SmtpFromEmail+")")
					print ("[ip2e-daemon] ["+CurrentTime+"] Check your settings [Aborted]")
				editlog.write("[ip2e-daemon] ["+CurrentTime+"] Failed to connect ("+SmtpFromEmail+")\n")
				editlog.write("[ip2e-daemon] ["+CurrentTime+"] Check your settings [Aborted]\n")
				exit(1)
			#Check sending errors
			try:
				server.sendmail(FromEmail, ToEmail, SmtpBodyMessage)
				server.quit()
				CurrentTime = time.strftime("%H:%M")
				MailMessage="[ip2e-daemon] ["+CurrentTime+"] Email was sent successfully"
				if os.name == "posix":
					print (chr(27)+"[1;32m"+MailMessage+" ("+ToEmail+")")
				elif os.name == "nt":
					GreenColor()
					print (MailMessage+" ("+ToEmail+")")
				editlog.write(MailMessage+" to "+ToEmail+"\n")
				SendEmailOK += 2
			except SMTPException:
				CurrentTime = time.strftime("%H:%M")
				MailMessage="[ip2e-daemon] ["+CurrentTime+"] Fail to send email"
				if os.name == "posix":
					print (chr(27)+"[1;31m"+MailMessage+" ("+ToEmail+")")
					print (chr(27)+"[1;33m"+"[ip2e-daemon] ["+CurrentTime+"] Retrying in 5 seconds...")
				elif os.name == "nt":
					RedColor()
					print (MailMessage+" ("+ToEmail+")")
					print ("[ip2e-daemon] ["+CurrentTime+"] Retrying in 5 seconds...")
				editlog.write(MailMessage+" to "+ToEmail+"\n")
				editlog.write("[ip2e-daemon] ["+CurrentTime+"] Retrying in 5 seconds...\n")
				time.sleep(5)
		os.remove("current-ip.py")
		def createNewip2eIPcf():
			ip2eIPcf=open('current-ip.py','w')
			ip2eIPcf.close()
		def writeNewip2eIPcf():
			ip2eIPcf=open('current-ip.py','a')
			ip2eIPcf.write('CurrentIP="'+NewIP+'"\n')
			ip2eIPcf.close()
		createNewip2eIPcf()
		writeNewip2eIPcf()
	CurrentTime = time.strftime("%H:%M")
	if os.name == "posix":
		print (chr(27)+"[1;33m"+"[ip2e-daemon] ["+CurrentTime+"] Next update in 10 minutes...")
	elif os.name == "nt":
		GreenColor()
		print ("[ip2e-daemon] ["+CurrentTime+"] Next update in 10 minutes...")
	editlog.write("[ip2e-daemon] ["+CurrentTime+"] Next update in 10 minutes...\n")
	editlog.close()
	time.sleep(600)