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main.py
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import sys
import json
import socket
import threading
import time
from datetime import datetime
import magic
backlog = 10
buffer_size = 4048
docroots = {}
class Server(threading.Thread):
def __init__(self, ip,port):
super().__init__()
self.ip = ip
self.port = port
def run(self):
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((self.ip, self.port))
#print("Listening on TCP {}:{}".format(*sock.getsockname()))
sock.listen(backlog)
while True:
conn, addr = sock.accept()
Worker(conn, buffer_size).start()
def parse_config_file(file_name):
servers_started = []
with open(file_name) as f:
data = json.load(f)
for elem in data["server"]:
docroots[elem["vhost"]] = elem["documentroot"]
if([elem["ip"],elem['port']] not in servers_started):
Server(elem["ip"],elem["port"]).start()
#print("server " + str(elem["port"]) + " started")
servers_started.append([elem["ip"],elem['port']])
parse_config_file(sys.argv[1])
class Worker(threading.Thread):
def __init__(self, sock, buffer_size):
super().__init__()
self.sock = sock
self.buffer_size = buffer_size
self.method = ""
self.file_name = ""
self.v_host = ""
self.keep_alive = False
self.file = ""
self.status_code = 200
self.range = ""
def parse_header(self,header):
tokens = header.split("\r\n")
self.method = tokens[0].split(" ")[0].strip()
self.file_name = tokens[0].split(" ")[1].replace("%5C", "/").replace("%20", " ").strip()
for elem in tokens[1:]:
if("host" in elem.lower()):
self.v_host = elem.split(":")[1].strip()
elif("connection" in elem.lower() and "keep-alive" in elem.lower()):
self.keep_alive = True
elif("range" in elem.lower()):
self.range = elem.split("=")[1].strip()
try:
with open(docroots[self.v_host] + "/" + self.file_name, 'rb') as file:
if (self.range != ""):
offset = int(self.range.split("-")[0])
file.seek(offset)
if(self.range.split("-")[1] == ""):
self.file = file.read()
else:
length = int(self.range.split("-")[1]) - offset +1
self.file = file.read(length)
else:
self.file = file.read()
except:
pass
def make_responce_header(self):
response = "HTTP/1.1 "
domain_not_found = "<html><body><p>REQUESTED DOMAIN NOT FOUND</p></body></html>"
if(len(self.file) !=0):
self.status_code = 200
response+="200 OK"
else:
self.status_code = 404
response+="404 Not Found"
response+="\r\n"
response+="Date: " +datetime.today().strftime('%Y-%m-%d') + "\r\n"
response+="Server: my server" + "\r\n"
if(self.status_code == 200):
response+="Content-Length: "+str(len(self.file))+"\r\n"
else:
response += "Content-Length: " + str(len(domain_not_found)) + "\r\n"
response+="Accept-Ranges: bytes" +"\r\n"
if(self.file !=""):
mime = magic.Magic(mime=True)
type = mime.from_file(self.v_host+"/"+self.file_name)
response += "Content-Type: "+type+"\r\n"
else:
response += "Content-Type: plain/html" + "\r\n"
if(self.keep_alive):
response+="Connection: keep-alive"+"\r\n"
response+="Keep-Alive: timeout=5, max=1000" + "\r\n"
response+="ETag: 12"+"\r\n"
if(self.status_code == 404):
response+="\r\n"
response+=domain_not_found
return response
def run(self):
while True:
try:
payload = self.sock.recv(self.buffer_size)
except:
#print("timeout out")
break
payload_str = str(payload, "utf-8").strip()
#print("res --------",payload_str)
#responce["content"] = self.file
if payload:
#print("{}:{} > {}".format(peer_name[0], peer_name[1], payload_str))
if payload_str == "OVER":
#print("Client closed connection: {}".format(peer_name))
self.sock.close()
break
else:
self.parse_header(payload_str)
responce = self.make_responce_header()
#self.sock.send("\r\n".encode())
if(self.method == "GET"):
if(self.status_code == 200):
responce += "\r\n"
self.sock.send(responce.encode())
self.sock.send(self.file)
elif(self.status_code == 404):
responce+="\r\n"
self.sock.send(responce.encode())
else:
if (self.status_code == 200):
responce += "\r\n"
self.sock.send(responce.encode())
elif (self.status_code == 404):
responce += "\r\n"
self.sock.send(responce.encode())
self.sock.send(responce.encode())
if (self.keep_alive and self.sock.gettimeout() == None):
self.sock.settimeout(5)
else:
#print("Client closed connection: {}".format(peer_name))
break