Port program to Python 3

Python 2.7 will be deprecated in January of 2020. So, we need to have the program
with a supported api.

main.py

@@ -4,7 +4,7 @@ from src.ogConfig import *
 def main():
 	ogconfig = ogConfig()
 	if (not ogconfig.parserFile('cfg/ogagent.cfg')):
-		print 'Error: Parsing configuration file'
+		print ('Error: Parsing configuration file')
 		return 0
 
 	ip = ogconfig.getValueSection('opengnsys', 'ip')

src/HTTPParser.py

@@ -1,5 +1,5 @@
-from mimetools import Message
-from StringIO import StringIO
+import email
+from io import StringIO
 
 class HTTPParser:
 	def __init__(self):
@@ -14,7 +14,7 @@ class HTTPParser:
 
 	def parser(self,data):
 		self.requestLine, self.headersAlone = data.split('\n', 1)
-		self.headers = Message(StringIO(self.headersAlone))
+		self.headers = email.message_from_file(StringIO(self.headersAlone))
 
 		if 'host' in self.headers.keys():
 			self.host = self.headers['host']

src/ogClient.py

@@ -2,9 +2,11 @@ import errno
 import select
 import socket
 import time
+import email
+from io import StringIO
 
-from HTTPParser import *
-from ogProcess import *
+from src.HTTPParser import *
+from src.ogProcess import *
 from enum import Enum
 
 class State(Enum):
@@ -23,7 +25,7 @@ class ogClient:
 		return self.state
 
 	def connect(self):
-		print "connecting"
+		print ('connecting')
 		self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 		self.sock.setblocking(0)
 		self.state = State.CONNECTING
@@ -33,32 +35,32 @@ class ogClient:
 
 		try:
 			self.sock.connect((self.ip, self.port))
-		except socket.error, err:
+		except socket.error as err:
 			if err.errno == errno.EINPROGRESS:
 				return
 			elif err.errno == errno.ECONNREFUSED:
 				return
 
-			print "Error connect " + str(err)
+			print ('Error connect ' + str(err))
 
 	def connect2(self):
 		try:
 			self.sock.connect((self.ip, self.port))
-		except socket.error, err:
+		except socket.error as err:
 			if err.errno == errno.EISCONN:
-				print "connected"
+				print ('connected')
 				self.state = State.RECEIVING
 			else:
-				print "connection refused, retrying..."
+				print ('connection refused, retrying...')
 				self.state = State.CONNECTING
 				self.sock.close()
 				self.connect()
 
 	def receive(self):
 		try:
-			data = self.sock.recv(1024)
-		except socket.err, err:
-			print "Error3 " + str(err)
+			data = self.sock.recv(1024).decode('utf-8')
+		except socket.err as err:
+			print ('Error3 ' + str(err))
 
 		if len(data) == 0:
 			self.state = State.CONNECTING
@@ -73,7 +75,7 @@ class ogClient:
 			if self.data.find("\r\n") > 0:
 				# https://stackoverflow.com/questions/4685217/parse-raw-http-headers
 				request_line, headers_alone = self.data.split('\n', 1)
-				headers = Message(StringIO(headers_alone))
+				headers = email.message_from_file(StringIO(headers_alone))
 
 				if 'content-length' in headers.keys():
 					self.content_len = int(headers['content-length'])
@@ -83,9 +85,9 @@ class ogClient:
 		if self.trailer and len(self.data) >= self.content_len:
 			httpparser.parser(self.data)
 			if not ogprocess.processOperation(httpparser.getRequestOP(), httpparser.getURI()):
-				self.sock.send("HTTP/1.0 400 Bad request\r\n\r\n")
+				self.sock.send(bytes('HTTP/1.0 400 Bad request\r\n\r\n', 'utf-8'))
 			else:
-				self.sock.send("HTTP/1.0 200 OK\r\n\r\n")
+				self.sock.send(bytes('HTTP/1.0 200 OK\r\n\r\n', 'utf-8'))
 
 			# Cleanup state information from request
 			self.data = ""
@@ -110,4 +112,4 @@ class ogClient:
 			elif state == State.RECEIVING and sock in readable:
 				self.receive()
 			else:
-				print "bad state" + str(state)
+				print ('bad state' + str(state))

src/ogProcess.py

@@ -3,7 +3,7 @@ import platform
 import time
 
 if platform.system() == 'Linux':
-	from linux import ogOperations
+	from src.linux import ogOperations
 
 class ogProcess():
 	def processOperation(self, op, URI):