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mainwindow.py
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# System imports
from os import getcwd, listdir
import sqlite3 as db
# Package imports
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QMessageBox, QTableWidgetItem
from PIL import Image
from ftplib import FTP
# Local imports
from static import timestamp_generator,amtopm,NOF_KEYS
from ImageED import ExtendedImage
class Ui_EDwindow(object):
userid = ''
receiveftp = FTP('')
sendftp = FTP('')
files = []
def setupUi(self, EDwindow):
EDwindow.setObjectName("EDwindow")
EDwindow.resize(751, 602)
self.timer = QtCore.QTimer()
self.horline0 = QtWidgets.QFrame(EDwindow)
self.horline0.setGeometry(QtCore.QRect(27, 50, 711, 20))
self.horline0.setFrameShape(QtWidgets.QFrame.HLine)
self.horline0.setFrameShadow(QtWidgets.QFrame.Sunken)
self.horline0.setObjectName("horline0")
self.welcomeLabel = QtWidgets.QLabel(EDwindow)
self.welcomeLabel.setGeometry(QtCore.QRect(28, 19, 711, 31))
font = QtGui.QFont()
font.setFamily("DejaVu Serif")
font.setPointSize(15)
font.setBold(True)
font.setWeight(75)
self.welcomeLabel.setFont(font)
self.welcomeLabel.setAlignment(QtCore.Qt.AlignCenter)
self.welcomeLabel.setObjectName("welcomeLabel")
self.msgInput = QtWidgets.QPlainTextEdit(EDwindow)
self.msgInput.setGeometry(QtCore.QRect(20, 100, 261, 101))
self.msgInput.setTabChangesFocus(True)
self.msgInput.setObjectName("msgInput")
self.passkeyInput = QtWidgets.QLineEdit(EDwindow)
self.passkeyInput.setGeometry(QtCore.QRect(20, 210, 261, 31))
self.passkeyInput.setEchoMode(QtWidgets.QLineEdit.Password)
self.passkeyInput.setObjectName("passkeyInput")
self.receiverInput = QtWidgets.QLineEdit(EDwindow)
self.receiverInput.setReadOnly(True)
self.receiverInput.setGeometry(QtCore.QRect(20, 250, 261, 31))
self.receiverInput.setObjectName("receiverInput")
self.verLine = QtWidgets.QFrame(EDwindow)
self.verLine.setGeometry(QtCore.QRect(300, 100, 20, 491))
self.verLine.setFrameShape(QtWidgets.QFrame.VLine)
self.verLine.setFrameShadow(QtWidgets.QFrame.Sunken)
self.verLine.setObjectName("verLine")
self.encryptionLabel = QtWidgets.QLabel(EDwindow)
self.encryptionLabel.setGeometry(QtCore.QRect(20, 70, 111, 21))
font = QtGui.QFont()
font.setFamily("DejaVu Sans Mono")
font.setPointSize(13)
font.setBold(True)
font.setWeight(75)
self.encryptionLabel.setFont(font)
self.encryptionLabel.setObjectName("encryptionLabel")
self.usersLabel = QtWidgets.QLabel(EDwindow)
self.usersLabel.setGeometry(QtCore.QRect(20, 360, 141, 21))
font = QtGui.QFont()
font.setFamily("DejaVu Sans Mono")
font.setPointSize(13)
font.setBold(True)
font.setWeight(75)
self.usersLabel.setFont(font)
self.usersLabel.setObjectName("usersLabel")
self.sendBtn = QtWidgets.QPushButton(EDwindow)
self.sendBtn.setGeometry(QtCore.QRect(180, 290, 80, 23))
self.sendBtn.setObjectName("sendBtn")
self.horline = QtWidgets.QFrame(EDwindow)
self.horline.setGeometry(QtCore.QRect(10, 330, 271, 16))
self.horline.setFrameShape(QtWidgets.QFrame.HLine)
self.horline.setFrameShadow(QtWidgets.QFrame.Sunken)
self.horline.setObjectName("horline")
self.userslistTable = QtWidgets.QTableWidget(EDwindow)
self.userslistTable.setGeometry(QtCore.QRect(20, 390, 261, 181))
self.userslistTable.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
self.userslistTable.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.userslistTable.setObjectName("userslistTable")
self.userslistTable.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.download_db()
self.createuserslist_table()
self.receivedmsgsLabel = QtWidgets.QLabel(EDwindow)
self.receivedmsgsLabel.setGeometry(QtCore.QRect(320, 70, 181, 21))
font = QtGui.QFont()
font.setFamily("DejaVu Sans Mono")
font.setPointSize(13)
font.setBold(True)
font.setWeight(75)
self.receivedmsgsLabel.setFont(font)
self.receivedmsgsLabel.setObjectName("receivedmsgsLabel")
self.msgsTable = QtWidgets.QTableWidget(EDwindow)
self.msgsTable.setGeometry(QtCore.QRect(320, 100, 411, 211))
self.msgsTable.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAsNeeded)
self.msgsTable.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
self.msgsTable.setObjectName("msgsTable")
self.msgsTable.setEditTriggers(QtWidgets.QAbstractItemView.NoEditTriggers)
self.createmsgs_table()
self.horLine2 = QtWidgets.QFrame(EDwindow)
self.horLine2.setGeometry(QtCore.QRect(320, 330, 421, 16))
self.horLine2.setFrameShape(QtWidgets.QFrame.HLine)
self.horLine2.setFrameShadow(QtWidgets.QFrame.Sunken)
self.horLine2.setObjectName("horLine2")
self.decryptImgInput = QtWidgets.QLineEdit(EDwindow)
self.decryptImgInput.setReadOnly(True)
self.decryptImgInput.setGeometry(QtCore.QRect(390, 390, 341, 31))
self.decryptImgInput.setText("")
self.decryptImgInput.setObjectName("decryptImgInput")
self.decryptLabel = QtWidgets.QLabel(EDwindow)
self.decryptLabel.setGeometry(QtCore.QRect(330, 360, 141, 21))
font = QtGui.QFont()
font.setFamily("DejaVu Sans Mono")
font.setPointSize(11)
font.setBold(True)
self.decryptLabel.setFont(font)
self.decryptLabel.setObjectName("decryptLabel")
self.decryptpasskeyInput = QtWidgets.QLineEdit(EDwindow)
self.decryptpasskeyInput.setGeometry(QtCore.QRect(390, 430, 341, 31))
self.decryptpasskeyInput.setEchoMode(QtWidgets.QLineEdit.Password)
self.decryptpasskeyInput.setObjectName("decryptpasskeyInput")
self.decryptBtn = QtWidgets.QPushButton(EDwindow)
self.decryptBtn.setGeometry(QtCore.QRect(620, 470, 80, 23))
self.decryptBtn.setObjectName("decryptBtn")
# Button Action ############################
self.msgsTable.cellClicked.connect(self.retrieve_image_name)
self.sendBtn.clicked.connect(self.image_send)
self.decryptBtn.clicked.connect(self.decrypt_img)
self.userslistTable.cellClicked.connect(self.retrieve_user_name)
#############################################
self.retranslateUi(EDwindow)
QtCore.QMetaObject.connectSlotsByName(EDwindow)
def retranslateUi(self, EDwindow):
_translate = QtCore.QCoreApplication.translate
EDwindow.setWindowTitle(_translate("EDwindow", "Image Encryption Decryption"))
self.msgInput.setProperty("placeholderText", _translate("EDwindow", "Enter Message"))
self.passkeyInput.setPlaceholderText(_translate("EDwindow", "Enter PassKey"))
self.receiverInput.setPlaceholderText(_translate("EDwindow", "Select Username from Userslist"))
self.encryptionLabel.setText(_translate("EDwindow", "Encryption"))
self.usersLabel.setText(_translate("EDwindow", "List of Users"))
self.sendBtn.setText(_translate("EDwindow", "Send"))
self.decryptImgInput.setPlaceholderText(_translate("EDwindow", "Select Image name from Messages Table"))
self.decryptLabel.setText(_translate("EDwindow", "Decryption"))
self.decryptpasskeyInput.setPlaceholderText(_translate("EDwindow", "Enter PassKey"))
self.decryptBtn.setText(_translate("EDwindow", "Decrypt"))
self.receivedmsgsLabel.setText(_translate("EDwindow", "Received Messages "))
self.welcomeLabel.setText(_translate("EDwindow", "Welcome " + Ui_EDwindow.userid))
# Image Creation and Encryption #############################
def image_send(self):
text = str(self.msgInput.toPlainText())
passkey = str(self.passkeyInput.text())
receiver = str(self.receiverInput.text())
self.receiverInput.clear()
self.passkeyInput.clear()
self.msgInput.clear()
abspath = getcwd()
timestamp = timestamp_generator()
input_img_path = abspath + "/images/" + Ui_EDwindow.userid + "/input_img/" + receiver + "-" + timestamp + ".png"
enc_img_name = Ui_EDwindow.userid + "-" + timestamp + ".png"
abs_enc_img_path = abspath + "/images/" + Ui_EDwindow.userid + "/enc_img/" + enc_img_name
ExtendedImage.genimg(text, input_img_path)
image = ExtendedImage(Image.open(input_img_path))
image.encryptimg(passkey, abs_enc_img_path)
Ui_EDwindow.sendftp.cwd(receiver)
Ui_EDwindow.sendftp.storbinary('STOR ' + enc_img_name, open(abs_enc_img_path, 'rb'))
print("Msg files sent to " + receiver)
Ui_EDwindow.sendftp.cwd("./..")
self.gen_msgbox(QMessageBox.Information,"Msg Sent Successfully","Success!")
def createuserslist_table(self):
conn = db.connect('users_list.db')
users_list = []
for user in conn.cursor().execute('SELECT * FROM users'):
users_list.append(user[0])
users_list.remove(Ui_EDwindow.userid)
self.userslistTable.setRowCount(len(users_list))
self.userslistTable.setColumnCount(1)
self.userslistTable.setHorizontalHeaderLabels(("UsersList",))
header = self.userslistTable.horizontalHeader()
header.setSectionResizeMode(0, QtWidgets.QHeaderView.Stretch)
count = 0
for user in sorted(users_list):
self.userslistTable.setItem(count, 0, QTableWidgetItem(user))
count += 1
conn.close()
def retrieve_user_name(self, row, col):
self.receiverInput.setText(self.userslistTable.item(row,0).text())
def createmsgs_table(self):
self.receiveftp.cwd(Ui_EDwindow.userid)
Ui_EDwindow.files = self.receiveftp.nlst()
rowlength = len(Ui_EDwindow.files) == 0 and 0 or len(Ui_EDwindow.files)
print("Files that are already in your database : " + str(len(Ui_EDwindow.files)))
for f in Ui_EDwindow.files:
print(f)
self.msgsTable.setRowCount(rowlength)
self.msgsTable.setColumnCount(2)
self.msgsTable.setHorizontalHeaderLabels(("From", "Received on"))
header = self.msgsTable.horizontalHeader()
header.setSectionResizeMode(0, QtWidgets.QHeaderView.Stretch)
header.setSectionResizeMode(1, QtWidgets.QHeaderView.Stretch)
count = 0
for f in reversed(Ui_EDwindow.files):
sender = f
timestamp = f[-23:-13] + ' ' + amtopm(f[-12:-4])
self.msgsTable.setItem(count,0, QTableWidgetItem(sender))
self.msgsTable.setItem(count,1, QTableWidgetItem(timestamp))
count += 1
self.timer.timeout.connect(self.fetch_files)
self.timer.start(2000)
def fetch_files(self):
newfiles = Ui_EDwindow.receiveftp.nlst()
insertfiles = list(set(newfiles) - set(Ui_EDwindow.files))
print("New Messages arrived are : " + str(len(insertfiles)))
print(insertfiles)
if len(insertfiles) > 0:
for f in insertfiles:
sender = f
timestamp = f[-23:-13] + ' ' + amtopm(f[-12:-4])
self.msgsTable.insertRow(0)
self.msgsTable.setItem(0, 0, QTableWidgetItem(sender))
self.msgsTable.setItem(0, 1, QTableWidgetItem(timestamp))
Ui_EDwindow.files = list(newfiles)
def retrieve_image_name(self, row, col):
self.decryptImgInput.setText(self.msgsTable.item(row,0).text())
def decrypt_img(self):
downloadedimg = self.download_img()
decryptpasskey = self.decryptpasskeyInput.text()
image = ExtendedImage(Image.open(downloadedimg))
image.decryptimg(decryptpasskey, "")
image.show()
def download_img(self):
decryptimgname = self.decryptImgInput.text()
downloaded_img = str(getcwd()) + "/images/" + Ui_EDwindow.userid \
+ "/downloaded_img/" + decryptimgname
path = str(getcwd()) + "/images/" + Ui_EDwindow.userid \
+ "/downloaded_img/"
if decryptimgname in listdir(path):
return downloaded_img
img = open(downloaded_img, 'wb')
self.receiveftp.retrbinary('RETR ' + decryptimgname, img.write)
print("Image Downloaded from FTPSERVER")
return downloaded_img
def download_db(self):
database = open('users_list.db','wb')
self.sendftp.retrbinary('RETR users_list.db',database.write)
def gen_msgbox(self, icon, description,title):
msg = QMessageBox()
msg.setIcon(icon)
msg.setText(description)
msg.setWindowTitle(title)
msg.exec()