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client.py
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client.py
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#!/usr/bin/env python
#########################################################################
# Author: Edlin (Lin Junhao) #
# Date: Nov.25, 2013 #
# Email: edlinlink@qq.com #
#########################################################################
import socket, sys, thread, time, os
from Msg import HANDSHAKE, handshake_toForm, SHEET, sheet_toForm
from Logic import cmd_valid, cmd_reply, get_code
from random import randint
PROCESSING = True
SERVER_HOST = "127.0.0.1"
SERVER_PORT = 51423
MY_HOST = "127.0.0.1"
MY_PORT = ""
ALL_HOST = ""
Status={}
Status["login"]= False
NameList = {}
Username = ""
BEAT_TIME = 10
SendCode = {}
RecvCode = {}
ReplyCode = {}
def update_NameList(list_body):
global NameList
NameList = {}
allline = list_body.split("\n")
for item in allline:
if item=="":
break
recd = item.split(" ")
if(NameList.has_key(recd[0])):
NameList[recd[0]][0] = True
NameList[recd[0]][1] = recd[1]
NameList[recd[0]][2] = recd[2]
else:
NameList[recd[0]] = [True, recd[1], recd[2], None, False]
def print_NameList():
global NameList
print "[",
for i in NameList:
if NameList[i][0]==True:
print i + ".",
print "]\n"
def print_csmessage(csmsg, fromname):
print "["+fromname+" ~> msg]:" + csmsg
def file_recv(fileport, filepath):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((ALL_HOST, int(fileport)))
sock.listen(1)
filesock, fileaddr = sock.accept()
path = filepath.split("/")
path = path[-1]
try:
os.mkdir("./download/"+Username)
except:
i=0
print "[80] mkdir not ok"
f = open("./download/"+Username+"/"+path, "wb")
while 1:
sheet_str = filesock.recv(1024)
if not sheet_str: break
print "[87] file recv", sheet_str
sheet = sheet_toForm(sheet_str)
print "[89] file_recv_sheet", sheet.toStr()
if sheet.Cmd=="P2PFILESEND":
print "[100-1]"
if sheet.Headline["CheckCode"]==ReplyCode[filepath]:
print "[100-2]"
msg = sheet.Body
f.write(msg)
f.close()
sock.close()
def make_sheet(cmd):
global Username
sheet = SHEET()
if cmd[0]=="LOGIN":
Username = cmd[1]
sheet.fill(cmd[0], cmd[1])
sheet.headAdd("Port", str(MY_PORT))
elif cmd[0]=="GETLIST":
sheet.fill(cmd[0])
elif cmd[0]=="LEAVE":
sheet.fill(cmd[0], Username)
elif cmd[0]=="MESSAGE":
sheet.fill(cmd[0], Username)
msg = cmd[1]
if len(cmd)>2:
for content in cmd[2:]:
msg = msg+" "+content
sheet.fill_body(msg)
elif cmd[0]=="P2PMESSAGE":
sheet.Version = "P2P1.0"
sheet.fill(cmd[0], Username)
msg = cmd[2]
if len(cmd)>3:
for content in cmd[3:]:
msg = msg+" "+content
sheet.fill_body(msg)
elif cmd[0]=="P2PFILE":
sheet.Version = "P2P1.0"
sheet.fill(cmd[0], Username, cmd[2])
sheet.headAdd("Query", "1")
code = get_code()
SendCode[cmd[2]] = code
sheet.headAdd("SendCode", code)
elif cmd[0]=="P2PFILEACCEPT":
sheet.Version = "P2P1.0"
sheet.fill(cmd[0], Username, cmd[2])
try:
sheet.headAdd("RecvCode", RecvCode[cmd[2]])
except:
sheet.headAdd("RecvCode", "00000000000000000000000000000000") # reply an wrong code
code = get_code()
ReplyCode[cmd[2]] = code
sheet.headAdd("ReplyCode", code)
fileport = find_idle_port()
sheet.headAdd("FILEPORT", fileport)
# new a thread to recv file
file_thread = thread.start_new_thread(file_recv, (fileport, cmd[2],))
sheet.headAdd("Content-Length", len(sheet.Body))
date = time.strftime("%H:%M:%S@%Y-%m-%d", time.localtime())
sheet.headAdd("Date", date)
return sheet
def login_handle(clientsock):
global Status
sheet_str = clientsock.recv(1024)
allsheet = sheet_str.split("CS1.0")
for sheet_str in allsheet[1:]:
sheet = sheet_toForm(sheet_str)
if sheet.Cmd=="STATUS":
if sheet.Arg=="1":
print "# LOGIN SUCCEED!"
Status["login"] = True
else:
print sheet.Body
Status["login"] = False
def beat_handle(clientsock):
global Status, Username
cur_time = time.time()
while Status["login"]:
if time.time() - cur_time > BEAT_TIME:
cur_time = time.time()
sheet = SHEET()
sheet.fill("BEAT", Username)
clientsock.send(sheet.toStr())
else:
time.sleep(1)
def handle(clientsock):
global Status, Username, PROCESSING
while 1:
sheet_str = clientsock.recv(1024)
allsheet = sheet_str.split("CS1.0")
for sheet_str in allsheet[1:]:
sheet = sheet_toForm(sheet_str)
# STATUS ------------------------------------------------
if sheet.Cmd=="STATUS":
if sheet.Arg=="1":
print "# LOGIN SUCCEED!"
Status["login"] = True
else:
print sheet.Body
Status["login"] = False
# LIST --------------------------------------------------
if sheet.Cmd=="LIST":
update_NameList(sheet.Body)
print "# current LIST:"
print_NameList()
# LEAVE -------------------------------------------------
if sheet.Cmd=="LEAVE":
if Username==sheet.Arg:
Status["login"] = False
# UPDATE ------------------------------------------------
if sheet.Cmd=="UPDATE":
if sheet.Arg2 == "1":
sheet = make_sheet(["GETLIST"])
clientsock.send(sheet.toStr())
else:
NameList[sheet.Arg][0] = False
NameList[sheet.Arg][3] = None
NameList[sheet.Arg][4] = False
# CSMESSAGE ----------------------------------------------
if sheet.Cmd=="CSMESSAGE":
if sheet.Arg!=Username:
print_csmessage(sheet.Body, sheet.Arg)
PROCESSING = False
def main():
find_MY_PORT()
t_p2p = thread.start_new_thread(p2p_recv_station, ())
print MY_PORT
global Username, NameList, PROCESSING
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((SERVER_HOST, SERVER_PORT))
# handshake ----------------------------------------------------
handshake = HANDSHAKE()
handshake.Type = "MINET"
handshake.Hostname = SERVER_HOST
s.send(handshake.toStr())
handshake_str = s.recv(1024)
handshake = handshake_toForm(handshake_str)
# --------------------------------------------------------------
if handshake.Type != "MIRO" or handshake.Hostname != SERVER_HOST:
print "@@@ connection NOT from Miro!"
else:
print "# please enter 'LOGIN Username':"
# Thy to login ------------------------------
while not Status["login"]:
print "$",
cmd_input = raw_input()
cmd = cmd_input.split(" ")
if cmd_valid(cmd) and cmd[0]=="LOGIN":
sheet = make_sheet(cmd)
s.send(sheet.toStr())
login_handle(s)
elif cmd_valid(cmd) and cmd[0]=="LEAVE":
break
else:
print "# command ERROR!"
# -------------------------------------------
# have login and wait for command -----------
if Status["login"]:
t = thread.start_new_thread(handle, (s,))
t_beat = thread.start_new_thread(beat_handle, (s,))
while Status["login"]:
if PROCESSING:
time.sleep(0.1)
else:
print "["+Username+"]$",
cmd_input = raw_input()
cmd = cmd_input.split(" ")
if cmd_valid(cmd):
sheet = make_sheet(cmd)
if sheet.Version=="CS1.0":
s.send(sheet.toStr())
PROCESSING = True
elif sheet.Version=="P2P1.0":
if NameList.has_key(cmd[1]) and NameList[cmd[1]][0]==True:
p2p_send_station(sheet.toStr(), cmd[1])
else:
print "# your friend maybe OFFLINE. please GETLIST to check."
# send to another thread to handle the p2p communication
else:
print "# command ERROR!"
# -------------------------------------------
s.close()
def p2p_recv_station():
p2p = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
p2p.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
p2p.bind((ALL_HOST, int(MY_PORT)))
p2p.listen(10)
while 1:
p2psock, p2paddr = p2p.accept()
t_p2p_recv = thread.start_new_thread(p2p_recv, (p2psock, p2paddr))
p2p.close()
def file_send(ip, port, checkcode, filepath):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((ip, int(port)))
f = open(filepath, "rb")
sheet = SHEET()
sheet.fill("P2PFILESEND", Username, filepath)
sheet.headAdd("CheckCode", checkcode)
s = f.read(800)
while s:
sheet.fill_body(s)
sock.send(sheet.toStr())
#print "[330] file send", sheet.toStr()
s = f.read(800)
time.sleep(0.1)
f.close()
sock.close()
def p2p_recv(clientsock, clientaddr):
# handshake ----------------------------------------------------
handshake_str = clientsock.recv(1024)
handshake = handshake_toForm(handshake_str)
if handshake.Type != "MINET" :
clientsock.close()
#print "@@@ connection NOT come from Minet!"
else:
handshake = HANDSHAKE()
handshake.Type = "MINET"
handshake.Hostname = MY_HOST
clientsock.send(handshake.toStr())
# --------------------------------------------------------------
while 1:
sheet_str = clientsock.recv(1024)
if not sheet_str: break
sheet = sheet_toForm(sheet_str)
if sheet.Cmd=="P2PMESSAGE":
msg = sheet.Body
print "["+sheet.Arg+" ~> msg]" + msg
elif sheet.Cmd=="P2PFILE":
if sheet.Headline.has_key("Query") and sheet.Headline["Query"]=="1":
RecvCode[sheet.Arg2] = sheet.Headline["SendCode"]
print "["+sheet.Arg+" ~> file]" + "<"+sheet.Arg2+">"
print "# Accept reply: 'P2PFILEACCEPT " + sheet.Arg + " " + sheet.Arg2 + "' #"
print "# non-reply indicate REJECT #"
elif sheet.Cmd=="P2PFILEACCEPT":
print "[380]",sheet.toStr()
if SendCode.has_key(sheet.Arg2) and sheet.Headline["RecvCode"] == SendCode[sheet.Arg2]:
# new a thread to handle file transfer
file_send_thread = thread.start_new_thread(file_send, (NameList[sheet.Arg][1], sheet.Headline["FILEPORT"], sheet.Headline["ReplyCode"], sheet.Arg2,))
if NameList[sheet.Arg][0] == False:
break
clientsock.close()
# may have bug: s is reset by other sender, have a try to check the result.
def p2p_send_station(sheet_str, name):
if NameList[name][4]==False:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((NameList[name][1], int(NameList[name][2])))
NameList[name][3] = s
handshake = HANDSHAKE()
handshake.Type = "MINET"
handshake.Hostname = MY_HOST
s.send(handshake.toStr())
handshake_reply_str = s.recv(1024)
handshake_reply = handshake_toForm(handshake_reply_str)
if handshake_reply.Type=="MINET":
NameList[name][4] = True
if NameList[name][4]:
s = NameList[name][3]
s.send(sheet_str)
def find_MY_PORT():
global MY_PORT
s = socket.socket()
localhost = '127.0.0.1'
for myport in range(51000, 60000):
try:
s.bind((localhost, int(myport)))
s.close()
MY_PORT = str(myport)
break;
except socket.error, e:
continue;
def find_idle_port():
s = socket.socket()
localhost = '127.0.0.1'
for idleport in range(51000, 60000):
try:
s.bind((localhost, int(idleport)))
s.close()
return str(idleport)
except socket.error, e:
continue;
main()