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Server_Connection.py
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import atexit
import socket
import sys
import main
import io
import PIL
import PIL.Image
ipAddress = ""
port = ""
class Functional_Server_Connection:
subject = 0
id = ""
password = ""
def __init__(self, id, password):
self.id = id
self.password = password
def Log_In_Server_Connection(self):
try:
try:
local_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
local_socket.connect((main.ADDRESS, 22))
local_socket.send(str.encode("01000[" + self.id + "][" + self.password + "]"))
received_data = local_socket.recv(1000).decode("utf-8", "strict")
match received_data:
case "[ Log In Succeeded ]":
main.ID = self.id
main.PASSWORD = self.password
main.User_Interface().Main_Menu()
case "[ Log in failed ]":
print("\n\n\n[ - ] [ ! ! ! You have entered a wrong username or password ! ! ! ]\n\n\n")
main.User_Interface().Start_Menu()
local_socket.close()
except:
main.User_Interface.Start_Menu()
except KeyboardInterrupt:
main.SYSTEM_EXIT = True
sys.exit(0)
def Registration_Server_Connection(self):
try:
try:
local_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
local_socket.connect((main.ADDRESS, 22))
local_socket.send(str.encode("02000[" + self.id + "][" + self.password + "]"))
received_data = local_socket.recv(1000).decode("utf-8", "strict")
match received_data:
case "[ Registration Succeeded ]":
main.ID = self.id
main.PASSWORD = self.password
main.User_Interface().Main_Menu()
case "[ Registration failed ]":
print("\n\n\n[ - ] [ ! ! ! This username or password already exist. ! ! ! ]\n\n\n")
main.User_Interface().Start_Menu()
local_socket.close()
except:
main.User_Interface.Start_Menu()
except KeyboardInterrupt:
main.SYSTEM_EXIT = True
sys.exit(0)
def Log_Out_Server_Connection(self):
try:
try:
local_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
local_socket.connect((main.ADDRESS, 22))
local_socket.send(str.encode("03000[" + self.id + "][" + self.password + "]"))
received_data = local_socket.recv(1000).decode("utf-8", "strict")
match received_data:
case "[ Log Out Succeeded ]":
main.ID = self.id
main.PASSWORD = self.password
main.User_Interface().Start_Menu()
case "[ Log Out failed ]":
print("\n\n\n[ - ] [ ! ! ! An error occurred ! ! ! ]\n\n\n")
main.User_Interface().Main_Menu()
local_socket.close()
except:
main.User_Interface.Start_Menu()
except KeyboardInterrupt:
main.SYSTEM_EXIT = True
sys.exit(0)
def Load_Profile_Picture(self):
try:
try:
Socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Socket.connect((main.ADDRESS, 22))
Socket.send(str.encode("04000[" + self.id + "][" + self.password + "]"))
received_data = Socket.recv(10000000)
print("\n\n\n[Profile]")
print("\n\nUser Id: " + main.ID)
print("\n\n\n[ - ] [The Profile's picture will be displayed]")
print("[ - ] [The profile picture is loaded in the RAM]")
print("[ - ] [The profile picture is not saved in the computer]")
img = PIL.Image.open(io.BytesIO(received_data))
img.show()
img.close()
Socket.close()
main.User_Interface().Main_Menu()
except:
main.User_Interface().Main_Menu()
except KeyboardInterrupt:
main.SYSTEM_EXIT = True
sys.exit(0)
def Load_Contacts(self):
try:
try:
Socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Socket.connect((main.ADDRESS, 22))
Socket.send(str.encode("05000[" + self.id + "][" + self.password + "]"))
received_data = Socket.recv(1000).decode("utf-8")
if received_data != "[ Error Loading Contacts ]":
print("\n\n\n\n[ CONTACTS ]\n\n")
buffer = ""
for index in range(0, len(received_data)):
if received_data[index] != "[":
if received_data[index] != "]":
if received_data[index] != "|":
buffer += received_data[index]
elif received_data[index] == "|":
print(buffer)
buffer = ""
elif received_data[index] == "]":
print(buffer)
print("\n\n")
buffer = ""
user_input = input("\n\n\nEnter [ V ] to view the institution's contact picture,"
"\n[ M ] to go back to the main menu\nor [ E ] to exit: ")
if user_input == "V":
user_input = input("\n\n\nEnter the institution's name: ")
try:
Socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Socket.connect((main.ADDRESS, 22))
Socket.send(str.encode("06000[" + self.id + "][" + self.password + "]" + user_input))
received_data = Socket.recv(10000000)
image = PIL.Image.open(io.BytesIO(received_data))
image.show()
main.User_Interface().Main_Menu()
except:
main.User_Interface().Main_Menu()
elif user_input == "M":
main.User_Interface().Main_Menu()
elif user_input == "E":
main.SYSTEM_EXIT = True
sys.exit(0)
else:
self.Load_Contacts()
else:
main.User_Interface().Main_Menu()
except:
main.User_Interface().Main_Menu()
except KeyboardInterrupt:
main.SYSTEM_EXIT = True
sys.exit(0)
def Load_Grades(self):
try:
try:
Socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Socket.connect((main.ADDRESS, 22))
Socket.send(str.encode("07" + str(self.subject) + "00[" + self.id + "][" + self.password + "]"))
received_data = Socket.recv(1000).decode()
#################################
# #
# Process the retrieved data #
# #
#################################
subject_name = ""
buffer = ""
grade_counter = 1
match self.subject:
case 0:
subject_name = "Computer Systems"
case 1:
subject_name = "Databases"
case 2:
subject_name = "Foundation Project"
case 3:
subject_name = "Fundamentals of Programming"
case 4:
subject_name = "Fundamentals of Software Engineering"
case 5:
subject_name = "Logical Analysis and Problem Solving"
print("\n\n\nSubject: " + subject_name + "\n\n")
for index in range(0, len(received_data)):
if received_data[index] != "|":
buffer += received_data[index]
else:
if grade_counter != 4:
print("Grade" + str(grade_counter) + ": " + buffer)
buffer = ""
grade_counter += 1
else:
print("Final grade: " + buffer)
buffer = ""
user_input = input("\n\n\n\nEnter [ N ] to go to the next subject,\n"
"[ P ] to go to the previous subject\n"
"[ M ] to go to the main menu or\n"
"[ E ] to exit: ")
if user_input == "N":
if self.subject < 5:
self.subject += 1
self.Load_Grades()
else:
self.Load_Grades()
elif user_input == "P":
if self.subject > 0:
self.subject -= 1
self.Load_Grades()
else:
self.Load_Grades()
elif user_input == "M":
main.User_Interface().Main_Menu()
elif user_input == "E":
main.SYSTEM_EXIT = True
sys.exit(0)
else:
self.Load_Grades()
except:
main.User_Interface().Main_Menu()
except KeyboardInterrupt:
main.SYSTEM_EXIT = True
sys.exit(0)
def Load_Materials_Info(self):
try:
try:
Socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
Socket.connect((main.ADDRESS, 22))
Socket.send(str.encode("08" + str(self.subject) + "00[" + self.id + "][" + self.password + "]"))
received_data = Socket.recv(1000).decode()
if received_data != "[Material Loading Procedure Failed]":
subject_name = ""
buffer = ""
grade_counter = 1
match self.subject:
case 0:
subject_name = "Computer Systems"
case 1:
subject_name = "Databases"
case 2:
subject_name = "Foundation Project"
case 3:
subject_name = "Fundamentals of Programming"
case 4:
subject_name = "Fundamentals of Software Engineering"
case 5:
subject_name = "Logical Analysis and Problem Solving"
print("\n\n\nSubject: " + subject_name + "\n\n")
buffer = ""
count = 0
for index in range(0, len(received_data)):
if received_data[index] != "|":
buffer += str(received_data[index])
else:
count += 1
if count == 1:
print("File name: " + buffer)
buffer = ""
elif count == 2:
print("Week: " + buffer + "\n\n")
buffer = ""
count = 0
user_input = input("\n\n\nEnter [ N ] to go to the next subject,\n"
"[ P ] to go to the previous subject,\n"
"[ M ] to go to the main menu,\n"
"[ D ] to download a file or\n,"
"[ E ] to exit: ")
if user_input == "N":
if self.subject < 5:
self.subject += 1
self.Load_Materials_Info()
else:
self.Load_Materials_Info()
elif user_input == "P":
if self.subject > 0:
self.subject -= 1
self.Load_Materials_Info()
else:
self.Load_Materials_Info()
elif user_input == "M":
main.User_Interface().Main_Menu()
elif user_input == "D":
file_name = input("\n\n\nEnter the name of the file you want to download: ")
file_week = str(input("Enter the week associated with the file you want to download: "))
WEEK = ""
if len(file_week) < 2:
WEEK = "0" + str(file_week)
else:
WEEK = str(file_week)
File_Download_Socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
File_Download_Socket.connect((main.ADDRESS, 22))
File_Download_Socket.send(str.encode("09" + str(self.subject) + WEEK + "[" + self.id + "][" + self.password + "]" + str(file_name)))
received_file_data = File_Download_Socket.recv(1073741824)
with open(file_name, 'wb') as f:
f.write(received_file_data)
f.close()
self.Load_Materials_Info()
elif user_input == "E":
main.SYSTEM_EXIT = True
sys.exit(0)
else:
self.Load_Materials_Info()
else:
main.User_Interface().Main_Menu()
except:
main.User_Interface().Main_Menu()
except KeyboardInterrupt:
main.SYSTEM_EXIT = True
sys.exit(0)