def ifNotExCreate(directory):
"""
If does not exists dir, create it.
@param directory: directory to check and create
"""
if (not os.path.exists(AppSettings.decodePath(directory))):
# missing data dir
logging.info("creating dir: '%s'", directory)
os.makedirs(AppSettings.decodePath(directory))
def readFile(self, file_path):
"""
Read file binary. Return read data.
@param file_path: path to file
@return: on succes binary data, else None
"""
data = None
f = None
try:
logging.info("reading file: %s", file_path)
f = open(AppSettings.decodePath(file_path), "rb")
data = f.read()
logging.info("file size: %i", len(data))
except IOError as e:
logging.exception(e)
raise e
except:
# all other exceptions
logging.exception("exception, file: %s", file_path)
raise "exception, file: " + file_path
finally:
if (f):
f.close()
return data
def logIn(self):
"""
Read input lines and login user if possible.
"""
logging.debug("logging user ...")
try:
path = AppSettings.readDbFilePath()
self.__db_ctrl.connectDB(path)
login_ctrl = LoginController(self.__db_ctrl)
username = AppSettings.USER_NAME
master = str(self._passwd.text().toUtf8())
logged_user = login_ctrl.logInUser(username, master)
if (logged_user):
self.signalSuccessfullyLogged.emit(QtCore.QString.fromUtf8(username), QtCore.QString.fromUtf8(master))
self.close()
else:
# sleep for a while
time.sleep(AppSettings.WRONG_PASWD_SLEEP)
# show message
QtGui.QMessageBox(QtGui.QMessageBox.Critical, tr("Wrong credentials!"), tr("Username or password are wrong.")).exec_()
except Exception as e:
InfoMsgBoxes.showErrorMsg(e)
def readImage(self, path):
"""
Reads image and prepare it for SQLite db.
@param path: path to image
@return: BLOB type
"""
img = None
icon = None
# open and read icon
try:
logging.debug("reading icon image from path: %s", path)
img = open(AppSettings.decodePath(path), "rb")
icon = img.read()
icon = sqlite3.Binary(icon)
except IOError as e:
logging.exception(e)
raise e
finally:
if img:
img.close()
return icon
def loadTranslation(lang):
"""
Load translation from file.
"""
f = None
try:
f = open(AppSettings.decodePath(AppSettings.TRANS_PATH + lang + AppSettings.TRANS_SUFFIX))
lines = f.readlines()
tmp = {}
for i in range(0, len(lines) - 1):
if (i % 2 == 0):
logging.info(lines[i])
# create key and value, remove last \n character and decode to utf8
key = str(lines[i][:len(lines[i]) - 1]).decode('utf-8')
value = str(lines[i + 1][:len(lines[i + 1]) - 1]).decode('utf-8')
logging.debug("key: '%s', value: '%s'", key, value)
tmp[key] = value
TRANSLATION[lang] = tmp
except IOError as e:
logging.exception(e)
raise e
finally:
if (f):
f.close
def selectDB(self):
"""
Select database file.
"""
dir_path = AppSettings.APP_ABS_ROOT + AppSettings.DEFAULT_DB
file_path = QtGui.QFileDialog.getOpenFileName(self, tr("Select database"), QtCore.QString.fromUtf8(dir_path))
if (not file_path.isEmpty()):
db_path = str(file_path.toUtf8())
logging.debug("database file path: %s", db_path)
# write to setting file
AppSettings.writeDbFilePath(db_path)
self.enLogIn()
else:
logging.debug("database not selected")
def main():
app = QtGui.QApplication(sys.argv)
logging.info("Absolute app root: '%s'", AppSettings.APP_ABS_ROOT)
# set application icon
app.setWindowIcon(QtGui.QIcon(AppSettings.APP_ICON_PATH))
# create neccessary paths if missing
ifNotExCreate(AppSettings.TMP_PATH)
ifNotExCreate(AppSettings.BACKUP_PATH)
ifNotExCreate(AppSettings.DATA_PATH)
ifNotExCreate(AppSettings.DB_PATH)
ifNotExCreate(AppSettings.ICONS_PATH)
# preapare languages
AppSettings.writeLanguage("sk")
AppSettings.LANG = AppSettings.readLanguage()
TransController.loadTranslation("sk")
TransController.loadTranslation("en")
# DB controller instance
db_con = DbController()
# login dialog instance
login_dialog = LoginDialog(db_con)
db_path = AppSettings.readDbFilePath()
logging.info("DB path: '%s'", db_path)
if (not os.path.exists(AppSettings.decodePath(db_path))):
# if default DB file doesnt exists, run create DB dialog
login_dialog.enLogIn(False)
else:
# leave only last 10 backups
backups = sorted(os.listdir(AppSettings.BACKUP_PATH), reverse=True)
if len(backups) >= 10:
for i in range(9, len(backups)):
os.remove(AppSettings.BACKUP_PATH + backups[i])
# first backup database
backup_file = AppSettings.BACKUP_PATH + time.strftime("%Y-%m-%dT%H:%M:%S_", time.localtime()) + os.path.basename(db_path)
logging.info("backup file: '%s'", backup_file)
shutil.copyfile(AppSettings.decodePath(db_path), AppSettings.decodePath(backup_file))
login_dialog.show()
w = MainWindow(db_con)
# when succesfully logged load main window
login_dialog.signalSuccessfullyLogged.connect(w.setUserReloadShow)
sys.exit(app.exec_())
def createDB(self):
"""
Create DB file and new user with master password.
"""
db_path = str(self._db_file_path.text().toUtf8())
logging.debug("creating new DB: '%s'", db_path)
# write to setting file
AppSettings.writeDbFilePath(db_path)
self.__db_ctrl.connectDB(db_path)
self.__db_ctrl.createTables()
self.__db_ctrl.insertDefRows()
logging.debug("inserting user to DB: '%s'", AppSettings.USER_NAME)
master = str(self._passwd.text().toUtf8())
user = UserController(self.__db_ctrl)
user.insertUser(AppSettings.USER_NAME, master)
self.signalDbCreated.emit()
self.close()
def closeEvent(self, event):
"""
Do matters on close event. In example delete clipboard.
"""
logging.debug("deleting clipboard")
QtGui.QApplication.clipboard().clear()
try:
logging.info("removing tmp dir: '%s'", AppSettings.TMP_PATH)
# remove tmp files
shutil.rmtree(AppSettings.decodePath(AppSettings.TMP_PATH))
except Exception as e:
logging.exception(e)
InfoMsgBoxes.showErrorMsg(e)
def writeFile(self, file_path):
"""
Write file to disk.
@param file_path: file to write
"""
f = None
try:
f = open(AppSettings.decodePath(file_path), "wb")
f.write(self._attachment_data)
except IOError as e:
logging.exception(e)
raise e
except:
logging.exception("exception writting file: %s", file_path)
raise e
finally:
if (f):
f.close()
def _ui_initial_list(self):
appsettings = AppSettings()
if appsettings.Data["repository"] == "inmemory":
self._serviceStudents.create_init_studs()
self._serviceDisciplines.create_init_discs()
self._serviceGrades.create_init_grades()
@author: flavi
'''
from validare.validatoare import ValidatorStudent, ValidatorDiscipline, ValidatorGrade
from infrastructure.repos import Repo
from business.services import ServiceStudents, ServiceDisciplines, ServiceGrades
from presentation.ui import Console
from business.services import ServiceUndo
from AppSettings import *
from infrastructure.RepoTextFile import StudentTextFileRepo, DisciplineTextFileRepo, GradesTextFileRepo
from infrastructure.RepoBinaryFile import BinaryFileRepo
from infrastructure.JSONFile import JSONRepo
validatorStudent = ValidatorStudent()
validatorDiscipline = ValidatorDiscipline()
validatorGrade = ValidatorGrade()
appsettings = AppSettings()
if appsettings.Data["repository"] == "inmemory":
repoStudents = Repo()
repoDisciplines = Repo()
repoGrades = Repo()
elif appsettings.Data["repository"] == "textfiles":
repoStudents = StudentTextFileRepo(appsettings.Data["student"])
repoDisciplines = DisciplineTextFileRepo(appsettings.Data["discipline"])
repoGrades = GradesTextFileRepo(appsettings.Data["grade"])
elif appsettings.Data["repository"] == "binaryfile":
repoStudents = BinaryFileRepo(appsettings.Data["student"])
repoDisciplines = BinaryFileRepo(appsettings.Data["discipline"])
repoGrades = BinaryFileRepo(appsettings.Data["grade"])
elif appsettings.Data["repository"] == "json":
repoStudents = JSONRepo(appsettings.Data["student"])
repoDisciplines = JSONRepo(appsettings.Data["discipline"])
def initUI(self):
"""
Initialize UI components.
"""
self.setWindowTitle(tr("Log in: ") + QtCore.QString.fromUtf8(os.path.basename(AppSettings.readDbFilePath())))
self.setFixedSize(500, 100)
# create main grid layout
layout_gl = QtGui.QGridLayout()
self.setLayout(layout_gl)
# labels
# username_label = QtGui.QLabel("<b>" + tr("Username:"******"</b>")
passwd_label = QtGui.QLabel("<b>" + tr("Password:"******"</b>")
# add to layout
# layout_gl.addWidget(username_label, 0, 0)
layout_gl.addWidget(passwd_label, 0, 0)
# self._username = QtGui.QLineEdit()
# layout_gl.addWidget(self._username, 0, 1)
self._passwd = QtGui.QLineEdit()
# hide password
self._passwd.setEchoMode(QtGui.QLineEdit.Password)
# password layout
passwd_hl = QtGui.QHBoxLayout()
# add password edit line to layout
passwd_hl.addWidget(self._passwd)
# password visibility check box
self._show_passwd_check = QtGui.QCheckBox(tr("Show"))
self._show_passwd_check.setChecked(False)
passwd_hl.addWidget(self._show_passwd_check)
layout_gl.addLayout(passwd_hl, 0, 1)
# create buttons
self._button_box = QtGui.QDialogButtonBox()
self.__login_button = QtGui.QPushButton(tr("&Log In"))
self.__login_button.setEnabled(False)
self.__close_button = QtGui.QPushButton(tr("&Close"))
self._button_box.addButton(self.__login_button, QtGui.QDialogButtonBox.AcceptRole)
self._button_box.addButton(self.__close_button, QtGui.QDialogButtonBox.RejectRole)
# layout_gl.addWidget(self._button_box, 1, 1)
# db button layout
db_buttons_hl = QtGui.QHBoxLayout()
self.__open_db = QtGui.QPushButton(tr("Open Database"))
self.__create_db = QtGui.QPushButton(tr("Create Database"))
db_buttons_hl.addWidget(self.__open_db)
db_buttons_hl.addWidget(self.__create_db)
db_buttons_hl.addWidget(self._button_box)
layout_gl.addLayout(db_buttons_hl, 1, 0, 1, 2)
def enLogIn(self, b = True):
"""
Enable or disable password input, show checkbox and login button.
"""
logging.debug("enabling login: %s", b)
self._passwd.setEnabled(b)
self._show_passwd_check.setEnabled(b)
self.__login_button.setEnabled(b)
if (not b):
self.setWindowTitle(tr("Database not selected."))
else:
self.setWindowTitle(tr("Log in: ") + QtCore.QString.fromUtf8(os.path.basename(AppSettings.readDbFilePath())))
