Some code organisation and recovery procedure fix

Gui/AdminUserConfig.qml

@@ -75,10 +75,10 @@ GridLayout
 
     Component.onCompleted:
     {
-        config.usernameNotAvailable.connect(usernameNotAvailable)
+        config.adminNotAvailable.connect(adminNotAvailable)
 
     }
-    function usernameNotAvailable()
+    function adminNotAvailable()
     {
         benutzerName.placeholderText = qsTr ("Benutzername ist bereits vergeben")
         benutzerName.clear()

Gui/LoginScreen.qml

@@ -1,10 +1,13 @@
+import QtCore
 import QtQuick
 import QtQuick.Controls
+import QtQuick.Dialogs
 import QtQuick.Layouts
 
 
 Item
 {
+    property string recpass: ""
     anchors.fill: parent
 
     ColumnLayout
@@ -133,11 +136,58 @@ Item
             Layout.fillHeight: true
 
         }
+
+        Dialog
+        {
+            id: recoveryPaswordDialog
+            modal: true
+            title: qsTr("Wiederherstellung")
+            anchors.centerIn: parent
+            standardButtons: Dialog.Ok | Dialog.Cancel
+            onAccepted:
+            {
+                recpass = recoveryPaswordInput.text
+                getRecoveryDialog.open()
+            }
+
+            ColumnLayout
+            {
+                RowLayout
+                {
+                    Label
+                    {
+                        text: qsTr("Wiederherstellungspasswort eingeben: ")
+                    }
+
+                    TextField
+                    {
+                        id: recoveryPaswordInput
+                        text: ""
+                        echoMode: TextInput.Password
+                        implicitWidth: 300
+                        placeholderText: qsTr("Hier Wiederherstellungspasswort eingeben")
+                    }
+                }
+            }
+        }
+
+        FileDialog
+        {
+            id: getRecoveryDialog
+            title: qsTr("Wiederherstellungsdatei")
+            fileMode: FileDialog.OpenFile
+            nameFilters: ["PYQCRM Recovery files (*.pyqrec)"]
+            currentFolder: StandardPaths.standardLocations(StandardPaths.DocumentsLocation)[0]
+            onAccepted: config.getRecoveryKey(getRecoveryDialog.currentFile, recpass)
+            onRejected: quit()
+        }
     }
 
     Component.onCompleted:
     {
         loggedin_user.loginOkay.connect(loggedin)
+        config.invalidEncryptionKey.connect(getEncryptionKey)
+        config.checkEncryptionKey()
     }
 
     function loggedin()
@@ -145,4 +195,8 @@ Item
         appLoader.source = "Dashboard.qml"
     }
 
+    function getEncryptionKey()
+    {
+        recoveryPaswordDialog.open()
+    }
 }

Gui/firststart.qml

@@ -11,113 +11,6 @@ Item
 {
     property string recpass: ""
     property bool adminAvailable: true
-    Component.onCompleted:
-    {
-        config.dbConnectionError.connect(onDbConnectionError)
-        config.adminUserError.connect(onAdminUserError)
-        config.backupEncryptionKey.connect(onBackupEncryptionKey)
-
-    }
-
-    function onBackupEncryptionKey()
-    {
-        recoveryDialog.open()
-    }
-
-    function onDbConnectionError(msg, success)
-    {
-        if (!success)
-            conErrDialog.open()
-    }
-
-    function onAdminUserError(msg, success)
-    {
-        if (success)
-        {
-            encryptPwDialog.open()
-        }
-        else
-        {
-            adminAvailable = false
-            firstStart.push("AdminUserConfig.qml")
-        }
-
-    }
-    MessageDialog
-    {
-        id: recoveryDialog
-
-        text: qsTr("Diesen Wiederherstellungscode musst du sicher aufbewahren!\nMöchtest du das jetzt machen?")
-        title: qsTr("Wiederherstellen")
-        buttons: MessageDialog.Yes | MessageDialog.No
-        onAccepted: saveRecoveryDialog.open()
-
-    }
-    FileDialog
-    {
-        id: saveRecoveryDialog
-        title: qsTr("Wiederherstellungsdatei")
-        fileMode: adminAvailable? FileDialog.OpenFile: FileDialog.SaveFile
-        nameFilters: ["PYQCRM Recovery files (*.pyqrec)"]
-        currentFolder: StandardPaths.standardLocations(StandardPaths.DocumentsLocation)[0]
-        onAccepted:
-        {
-            if (!adminAvailable) config.saveRecoveryKey(saveRecoveryDialog.currentFile, recpass)
-            else
-            {
-                config.getRecoveryKey(saveRecoveryDialog.currentFile, recpass)
-
-            }
-            appLoader.source =  "Dashboard.qml"
-            topBar.visible = true
-        }
-
-    }
-
-
-    MessageDialog
-    {
-        id: conErrDialog
-        text: qsTr("Datenbankverbindung fehlgeschlagen")
-
-        title: qsTr("Datenbank Verbindung")
-
-
-    }
-    Dialog
-    {
-        id: encryptPwDialog
-        modal: true
-        title: qsTr("Wiederherstellung")
-        anchors.centerIn: parent
-        standardButtons: Dialog.Ok | Dialog.Cancel
-        onAccepted:
-        {
-            recpass = encryptPassword.text
-            saveRecoveryDialog.open()
-
-        }
-        ColumnLayout
-        {
-            RowLayout
-            {
-                Label
-                {
-                    text: qsTr("Wiederherstellungspasswort eingeben: ")
-                }
-
-                TextField
-                {
-                    id: encryptPassword
-                    echoMode: TextInput.Password
-                    implicitWidth: 300
-                    placeholderText: qsTr("Hier Wiederherstellungspasswort eingeben")
-                }
-            }
-        }
-    }
-
-
 
     anchors.fill: parent
     StackView
@@ -125,15 +18,14 @@ Item
         id: firstStart
         anchors.fill: parent
         initialItem: "DbConfiguration.qml"
-        //initialItem: "AdminUserConfig.qml"
     }
+
     RowLayout
     {
         anchors.bottom: parent.bottom
         anchors.margins: 9
         width: parent.width
 
-
         Item
         {
             Layout.fillWidth: true
@@ -164,28 +56,125 @@ Item
                     if (pyqcrm_conf)
                     {
                         config.setConfig(pyqcrm_conf)
-
                     }
                 }
                 else
                 {
                     pyqcrm_conf = Qmldict.firstConf(submitBtn.grids)
-                    if (pyqcrm_conf)
+                    if (pyqcrm_conf) config.addAdminUser(pyqcrm_conf)
+                }
+            }
+        }
+    }
+
+    MessageDialog
     {
-                        admin = config.addAdminUser(pyqcrm_conf)
+        id: recoveryDialog
-                        if (admin)
+
+        text: qsTr("Diesen Wiederherstellungscode musst du sicher aufbewahren!\nMöchtest du das jetzt machen?")
+        title: qsTr("Wiederherstellen")
+        buttons: MessageDialog.Yes | MessageDialog.No
+        onAccepted: recoveryPaswordDialog.open()
+        onRejected: gotoLogin()
+    }
+
+    MessageDialog
     {
-                            //appLoader.source = "Dashboard.qml"
+        id: conErrDialog
-                            //topBar.visible =  true
+        text: qsTr("Datenbankverbindung fehlgeschlagen")
+        title: qsTr("Datenbank Verbindung")
+    }
+
+    Dialog
+    {
+        id: recoveryPaswordDialog
+        modal: true
+        title: qsTr("Wiederherstellung")
+        anchors.centerIn: parent
+        standardButtons: Dialog.Ok | Dialog.Cancel
+        onAccepted:
+        {
+            recpass = recoveryPaswordInput.text
+            saveRecoveryDialog.open()
+        }
+
+        ColumnLayout
+        {
+            RowLayout
+            {
+                Label
+                {
+                    text: qsTr("Wiederherstellungspasswort eingeben: ")
+                }
+
+                TextField
+                {
+                    id: recoveryPaswordInput
+                    text: ""
+                    echoMode: TextInput.Password
+                    implicitWidth: 300
+                    placeholderText: qsTr("Hier Wiederherstellungspasswort eingeben")
+                }
+            }
+        }
+    }
+
+    FileDialog
+    {
+        id: saveRecoveryDialog
+        title: qsTr("Wiederherstellungsdatei")
+        fileMode: adminAvailable? FileDialog.OpenFile: FileDialog.SaveFile
+        nameFilters: ["PYQCRM Recovery files (*.pyqrec)"]
+        currentFolder: StandardPaths.standardLocations(StandardPaths.DocumentsLocation)[0]
+        onAccepted:
+        {
+            if (!adminAvailable) config.saveRecoveryKey(saveRecoveryDialog.currentFile, recpass)
+            else config.getRecoveryKey(saveRecoveryDialog.currentFile, recpass)
+
+            gotoLogin()
+        }
+
+        onRejected:
+        {
+            if (adminAvailable) quit()
+        }
+    }
+
+    Component.onCompleted:
+    {
+        config.dbConnectionError.connect(onDbConnectionError)
+        config.adminUserError.connect(onAdminUserError)
+        config.backupEncryptionKey.connect(onBackupEncryptionKey)
+    }
+
+    function gotoLogin()
+    {
+        appLoader.source= "LoginScreen.qml"
+        topBar.visible = true
+    }
+
+    function onBackupEncryptionKey()
+    {
+        recoveryDialog.open()
+    }
+
+    function onDbConnectionError(msg, success)
+    {
+        if (!success)
+            conErrDialog.open()
+    }
+
+    function onAdminUserError(msg, success)
+    {
+        if (success)
+        {
+            recoveryPaswordDialog.open()
         }
         else
         {
-                            console.log("Konfiguration Admin fehlgeschlagen")
+            adminAvailable = false
+            firstStart.push("AdminUserConfig.qml")
         }
     }
 
 }
-            }
-        }
-    }
-}

Gui/main.qml

@@ -47,6 +47,7 @@ ApplicationWindow
 
         property alias window: appWindow
     }
+
     Component.onCompleted:
     {
         if(bad_config)
@@ -54,8 +55,8 @@ ApplicationWindow
             importDialog.open()
         }
         else appLoader.source= "LoginScreen.qml"
-
     }
+
     Dialog
     {
         id: importDialog
@@ -65,11 +66,10 @@ ApplicationWindow
         onAccepted: settingsFiledialog.open()
         onRejected: appLoader.source= "firststart.qml"
         title: qsTr("Einstellungen importieren")
-
     }
+
     FileDialog
     {
-
         id: settingsFiledialog
         title: qsTr("PYQCRM Einstellungen")
         currentFolder: StandardPaths.standardLocations(StandardPaths.DocumentsLocation)[0]
@@ -77,18 +77,19 @@ ApplicationWindow
         nameFilters: [qsTr("PYQCRM Einstellungen (*.pyqcrm)")]
         onAccepted:
         {
-            encryptPwDialog.open()
+            exportFilePassword.open()
             confile = selectedFile
         }
     }
+
     Dialog
     {
-        id: encryptPwDialog
+        id: exportFilePassword
         modal: true
         title: qsTr("PYQCRM Einstellungen")
         anchors.centerIn: parent
         standardButtons: Dialog.Ok | Dialog.Cancel
-        onAccepted: config.importConfig(confile, encryptPassword.text)
+        onAccepted: config.importConfig(confile, exportPasswordInput.text)
         ColumnLayout
         {
             RowLayout
@@ -100,7 +101,7 @@ ApplicationWindow
 
                 TextField
                 {
-                    id: encryptPassword
+                    id: exportPasswordInput
                     echoMode: TextInput.Password
                     implicitWidth: 300
                 }

lib/ConfigLoader.py

@@ -19,43 +19,120 @@ from .PyqcrmFlags import PyqcrmFlags
 class ConfigLoader(QObject):
     __config = None
     __version = "0.1-alpha"
+    __check_enc_key = True
 
 
     dbConnectionError = Signal(str, bool)
     adminUserError = Signal(str, bool)
-    usernameNotAvailable = Signal()
+    adminNotAvailable = Signal()
-    configurationReady = Signal(bool)
+    configurationReady = Signal()
     backupEncryptionKey = Signal()
+    invalidEncryptionKey = Signal()
 
     def __init__(self):
         super().__init__()
-        self.config_dir = user_config_dir() + '/pyqcrm' #user_config_dir = Funktion platformdirs
+        # print(f"In {__file__} file, __init__()")
+        self.config_dir = user_config_dir() + '/pyqcrm'
         config_dir = Path(self.config_dir)
-
         if config_dir.exists():
             self.__configLoad()
+            if self.__config:
+                self.checkEncryptionKey()
         else:
             config_dir.mkdir(0o750, True, True)
 
+    @Slot(dict, result= bool)
+    def setConfig(self, app_config):
+        # print(f"In {__file__} file, setConfig()")
+        if not self.__config:
+            base_conf = self.__initializeConfig()
+            conf = self.__checkDbConnection(app_config)
+            app_config = toml.dumps(app_config)
+            if  conf:
+                app_config = base_conf + app_config
+                self.__config = toml.loads(app_config)
+                self.__saveConfig()
+                conf = self.__checkAdminUser()
+                if conf:
+                    self.configurationReady.emit()
+
+    def __initializeConfig(self):
+        # print(f"In {__file__} file, __initializeConfig()")
+        self.__encrypt_key = b64encode(get_random_bytes(32)).decode("utf-8")
+        conf = f"[pyqcrm]\nVERSION = \"{self.__version}\"\n"
+        conf = conf + f"ENCRYPTION_KEY_VALID = \"No\"\n"
+        conf = conf + f"ENCRYPTION_KEY = \"{self.__encrypt_key}\"\n\n"
+        return conf
+
+    def __checkDbConnection(self, db_config):
+        # print(f"In {__file__} file, __checkDbConnection()")
+        con = DbManager(db_config['database']).getConnection()
+        if con:
+            self.dbConnectionError.emit("Connection OK", True)
+            return True
+        else:
+            self.dbConnectionError.emit("Connection fehlgeschlagen", False)
+        return False
+
+
+    def __saveConfig(self):
+        # print(f"In {__file__} file, saveConfig()")
+        try:
+            with open (self.config_dir + '/pyqcrm.toml', 'w') as f:
+                # print(self.__config)
+                config = Vermasseln().oscarVermasseln(toml.dumps(self.__config))
+                f.write(config)
+        except FileNotFoundError:
+            print("Konnte die Konfiguration nicht speichern.")
+
+
+    def __checkAdminUser(self):
+        # print(f"In {__file__} file, __checkAdminUser()")
+        con = DbManager().getConnection()
+        cur = con.cursor()
+        cur.callproc("checkAdmin")
+        result = cur.fetchall()
+        if not result:
+            #if not result[0][0] == 1:
+            self.adminUserError.emit("Kein Admin vorhanden", False)
+            return False
+        else:
+            self.adminUserError.emit("Admin vorhanden", True)
+        return True
+
+    @Slot(dict, result= bool)
+    def addAdminUser(self, user_config):
+        # print(f"In {__file__} file, addAdminUser()")
+        admin = UserManager(user_config["user"], PyqcrmFlags.ADMIN).createUser()
+        if not admin:
+            #self.adminNotAvailable.emit()
+            self.adminUserError.emit("Benutzername nich verfügbar", False)
+        else:
+            self.__config['pyqcrm']['ENCRYPTION_KEY_VALID'] = 'Yes'
+            self.__saveConfig()
+            self.backupEncryptionKey.emit()
+        return admin
+
     @Slot(str, str)
     def saveRecoveryKey(self, recovery_file, recovery_password):
+        # print(f"In {__file__} file, saveRecoveryKey()")
         rp = self.__setRecoveryPassword(recovery_password)
         rf = rp[1] + self.__encrypt_key + rp[0]
         rf = Vermasseln().oscarVermasseln(rf)
         rec_file = urlparse(recovery_file)
-        rec_file = rec_file.path
+        rec_file = rec_file.path + ".pyqrec"
         if os.name == "nt":
             rec_file = rec_file [1:]
         try:
             with open(rec_file, "w") as f:
                 f.write(rf)
-                self.configurationReady.emit(True)
+                self.configurationReady.emit()
         except Exception as e:
             print(str(e))
 
-
     @Slot(str, str)
     def getRecoveryKey(self, recovery_file, recovery_password):
+        # print(f"In {__file__} file, getRecoveryKey()")
         rec_file = urlparse(recovery_file)
         rec_file = rec_file.path
         if os.name == "nt":
@@ -70,21 +147,33 @@ class ConfigLoader(QObject):
                 salt = rf[-32:]
                 ok = self.__checkRecoveryPassword(recovery_password, password, salt)
                 if ok:
-                    self.configurationReady.emit(True)
+                    self.__setEncryptionKey(ek)
+                    self.configurationReady.emit()
                 else:
-                    self.configurationReady.emit(False)
+                    self.__invalidateEncryptionKey()
+                    self.invalidEncryptionKey.emit()
         except Exception as e:
             print(str(e))
 
+    def __invalidateEncryptionKey(self):
+        # print(f"In {__file__} file, __invalidateEncryptionKey()")
+        self.__config['pyqcrm']['ENCRYPTION_KEY_VALID'] = 'No'
+        self.__saveConfig()
+
+    @Slot()
+    def checkEncryptionKey(self):
+        # print(f"In {__file__} file, __checkEncryptionKey()")
+        if self.__config['pyqcrm']['ENCRYPTION_KEY_VALID'] == 'No':
+            self.invalidEncryptionKey.emit()
+
     def __checkRecoveryPassword(self, recovery_password, password, salt):
+        # print(f"In {__file__} file, __checkRecoveryPassword()")
         rp = self.__setRecoveryPassword(recovery_password, salt)
         return rp[1] == password
 
-
-
     @Slot(str, str)
     def importConfig(self, confile, password):
-
+        # print(f"In {__file__} file, importConfig()")
         confile = urlparse(confile)
         confile = confile.path
 
@@ -92,38 +181,13 @@ class ConfigLoader(QObject):
             confile = confile[1:]
         shutil.copyfile(confile, self.config_dir+ '/pyqcrm.toml')
 
-    @Slot(dict, result= bool)
-    def addAdminUser(self, user_config):
-        admin = UserManager(user_config["user"], PyqcrmFlags.ADMIN).createUser()
-
-        if not admin:
-            self.usernameNotAvailable.emit()
-        else:
-            self.backupEncryptionKey.emit()
-        return admin
-
-    @Slot(dict, result= bool)
-    def setConfig(self, app_config):
-        base_conf = self.__initializeConfig()
-        conf = self.__checkDbConnection(app_config)
-        app_config = toml.dumps(app_config)
-
-        if  conf:
-            app_config = base_conf + app_config
-            self.__config = toml.loads(app_config)
-            self.__saveConfig()
-            conf = self.__checkAdminUser()
-            if conf:
-                self.configurationReady.emit(True)
-
-
-
     def __configLoad(self):
+        # print(f"In {__file__} file, __configLoad()")
         try:
             with open (self.config_dir + '/pyqcrm.toml', 'r') as f:
                 config = f.read()
                 self.__config = toml.loads(Vermasseln().entschluesseln(config))
-                self.configurationReady.emit(True)
+                self.configurationReady.emit()
         except FileNotFoundError:
             print("Konnte die Konfiguration nicht laden.")
         except TypeError:
@@ -131,50 +195,20 @@ class ConfigLoader(QObject):
         except Exception as e:
             print(str(e))
 
-
     def getConfig(self):
+        # print(f"In {__file__} file, getConfig()")
+        # print(self.__config)
         return self.__config
 
-    def __initializeConfig(self):
-        self.__encrypt_key = b64encode(get_random_bytes(32)).decode("utf-8")
-        conf = f"[pyqcrm]\nVERSION = \"{self.__version}\"\nENCRYPTION_KEY = \"{self.__encrypt_key}\"\n\n"
-        return conf
-
-
-    def __checkDbConnection(self, db_config):
-        con = DbManager(db_config['database']).getConnection()
-        if con:
-            self.dbConnectionError.emit("Connection OK", True)
-            return True
-        else:
-            self.dbConnectionError.emit("Connection fehlgeschlagen", False)
-        return False
-
-    def __checkAdminUser(self):
-        con = DbManager().getConnection()
-        cur = con.cursor()
-        cur.callproc("checkAdmin")
-        result = cur.fetchall()
-        if not result:
-            #if not result[0][0] == 1:
-            self.adminUserError.emit("Kein Admin vorhanden", False)
-            return False
-        else:
-            self.adminUserError.emit("Admin vorhanden", True)
-        return True
-
-
     def __setRecoveryPassword(self, key, salt = None):
+        # print(f"In {__file__} file, __setRecoveryPassword()")
         key = Vermasseln.userPasswordHash(key, salt)
         return key.split("$")
 
-    def __saveConfig(self):
+    @Slot(str)
-
+    def __setEncryptionKey(self, enc_key):
-        try:
+        # print(f"In {__file__} file, __setEncryptionKey()")
-            with open (self.config_dir + '/pyqcrm.toml', 'w') as f:
+        self.__config['pyqcrm']['ENCRYPTION_KEY_VALID'] = 'Yes'
-                config = Vermasseln().oscarVermasseln(toml.dumps(self.__config))
+        self.__config['pyqcrm']['ENCRYPTION_KEY'] = enc_key
-                f.write(config)
+        self.__saveConfig()
-        except FileNotFoundError:
-            print("Konnte die Konfiguration nicht speichern.")
-
 

lib/DB/DbManager.py

@@ -21,7 +21,7 @@ class DbManager(object):
                     cls.__connection = mariadb.connect(**cls.__con_param)
             except mariadb.InterfaceError as e:
                 cls.__connection = mariadb.connect(**cls.__con_param)
-                print(f"INTERFACE ERROR: {e}")
+                print(f"DbManager Connection (INTERFACE ERROR): {e}..reconnecting...")
             except mariadb.Error as e:
                 print(f"Connection parameters are wrong: {e}")
 

main.py

@@ -26,32 +26,31 @@ from lib.DB.AddressModel import AddressModel
 # name=""
 # type=""
 
+bad_config = False
 am = None
 bm = None
 user = None
 
-def initializeProgram(conf_ok):
+def initializeProgram():
-    if conf_ok:
+    # print(f"In {__file__} file, initializeProgram()")
     global am, bad_config, bm, user
+    if not bad_config:
         dbconf = config.getConfig()['database']
         DbManager(dbconf)
     bad_config = False
     bm = BusinessModel()
     user = UserManager()
     am = AddressModel()
+
     publishContext()
-    else:
-        # TODO: show message and exit program
-        print("Kein Zugriff auf die Datenbank")
 
 def publishContext():
-    global engine
+    # print(f"In {__file__} file, publishContext()")
+    global engine, am, bad_config, bm, user
     engine.rootContext().setContextProperty("loggedin_user", user)
     engine.rootContext().setContextProperty("bm", bm)
     engine.rootContext().setContextProperty("am", am)
 
-
-
 if __name__ == "__main__":
     #QResource.registerResource("rc_qml.py")
     app = QGuiApplication(sys.argv)
@@ -59,12 +58,6 @@ if __name__ == "__main__":
 
     engine.addImportPath("qrc:/");
 
-
-
-    bad_config = False
-
-
-
     # qml_file = Path(__file__).resolve().parent / "Gui/main.qml"
 
     qml_file = "qrc:/Gui/main.qml"
@@ -72,16 +65,16 @@ if __name__ == "__main__":
     config = ConfigLoader()
 
 
-
     if not config.getConfig():
         bad_config = True
         config.configurationReady.connect(initializeProgram)
-
     else:
         initializeProgram()
 
+
     engine.rootContext().setContextProperty("bad_config", bad_config) #     print(f"Fehler: {i}")
     engine.rootContext().setContextProperty("config", config)
+
     engine.load(qml_file)