- Nota is a Cross-Platform Note-Taking app designed to work both locally offline, or server synchronized across all of your devices
- Nota is focused on the security and privacy of your data and your notes will be securely encrypted, so that the server only
stores them, but can't read them
- only your local devices can decrypt and view your notes
- the notes can be accessed inside of the app with a folder like structure
- currently the app is still in development and is not released for the app stores yet!
- Before using the app, you have to create a new account and login to that account
- Then you can create notes and folders and navigate through them
- By default those are sorted by name
- You can of course also edit notes and synchronize the notes with the server
- And you can also search for file names
- Additionally on the top right you can open a menu to rename, delete, or move notes and folders except the top level folder
- You can also open the top left menu to navigate to other views of the notes via the quick access menu
- the "Root Folder" view shows all of your notes with the folder structure
- the "Recent Notes" view which shows all notes without folders sorted by the latest edit
- other than that you can also mark your own notes, or folders as favourites, so they can also be accessed here
- And of course the app also has some settings like for example activating the dark mode, but also an auto save and an auto login feature
- The note selection looks like this on windows in dark mode:
- Before installing the app on your phone, you can also use the preview test binaries for windows inside of the folders
nota/example/NotaAppWindowsandnota/example/NotaServerWindows - For the preview, you have to start the server before the app and both must be run on the same windows machine
- Currently the desktop version is not really supported tho and only looks like the phone version, so this is just for getting a quick first impression of the app!
- This short section describes the data collected by the Nota app
- The data is stored in a way that ensures maximum security and privacy
- Because this project is open source, this can always be verified
- The username you enter is stored encrypted locally and on the the server
- Your clear text password is never saved. Only a salted hash of the password is stored encrypted locally and on the server.
- The content of the notes is encrypted in a way that it can only be decrypted on your device locally, so the server stores the content, but can't read it. The content is of course also saved the same way locally.
- If you disable the auto login feature, then the key to decrypt the note content will only be kept in memory and it will only be saved encrypted locally if you enable the auto login feature
- improved some internal data handling and updated sdk and package versions and changed the apps bundle id
- added biometrics login and the possibility to mark notes, or folders as favourites
- initial release and beginning of changelog
- just import the project in android studio and have the flutter and dart sdks installed and the android studio flutter
plugin
- instead of android studio, you can also use visual studio code with the flutter plugin
- first run
dart pub getinside of each subfolder "shared", "server" and "app"! - then edit the config like explained below
- and afterwards you can use the run configurations in android studio to start the app and the server in debug mode
- This project contains the sub projects shared, server and app
- when building the release version, you should set the
acceptSelfSignedCertificatesconfig option tofalseinside of the app and use a trusted tls/ssl certificate instead of a self signed certificate!
dart compile exe server/lib/main.dart
- of course the trusted tls/ssl certificates have to be put into a folder named "notaRes" which has to be put next to the exe!
- first navigate into the
nota/appfolder and then use one of the following depending on the platform
flutter build windows --release
flutter build linux --release
flutter build apk --release # android
flutter build ipa --release # ios
- you have to run the run configuration "Create New Keys" at least once, because it will create the "sensitive_data.dart"
files inside of the config folders of each project with new random salts and keys
- then you have to set the server hostname in
/shared/lib/core/config/sensitive_data.dart
- then you have to set the server hostname in
- you also have to add a RSA private key named
key.pemand the matching certificate namedcertificate.pemin the foldernota/server/notaResfor debug mode, or inside of a folder nameddatanext to the server exe in release mode- if your private key is password protected, you can pass the password to the server exe as a command line argument
with
-r "password", or--rsaPassword="password"
- if your private key is password protected, you can pass the password to the server exe as a command line argument
with
- you can also adjust the log level with
-l "number", or--loglevel="number"where the number can be 0 for errors only, 1 for warning, 2 for info, 3 for debug, 4 for verbose and 5 for spam
- first install openssl
- then open a terminal and navigate to the folder
server/notaRes - now enter the command
openssl req -x509 -sha256 -nodes -days 36500 -newkey rsa:4096 -keyout key.pem -out certificate.pem - always enter
.except for the common name, where you can enter anything you want
- contains the server specific code (dart project)
- in the scope of the whole project and in relation to the app, the server is mostly written in the data layer without many use cases
- the server will be build as a command line tool with no gui
- contains the shared code used in server and app (dart project) and should not be used on its own
- this also contains a shared config and shared sensitive data for both projects
- contains the app specific code (flutter project) written with the "clean architecture"
- this will build the final app for the device with the gui that the user interacts with
- some of the server tests can fail on a slow processor, because of some time critical operations
- if this happens, just increase the delays inside of the affected tests
- navigate to the
nota/serverfolder with the terminal and rundart test, or just start the "All Server Tests" run configuration - the default log level for the tests can be changed inside of the file
nota/server/test/helper/server_test_helper.dartin the methodcreateCommonTestObjects
- navigate to the
nota/appfolder with the terminal and runflutter test, or just start the "All App Tests" run configuration - the tests of the app also directly use the server tests for the real server responses instead of mocks!
- because of this, the app tests also don't have to care about the server errors, because they are already tested in the server tests
- the default log level for the tests can be changed inside of the file
nota/app/test/helper/app_test_helper.dartin the methodcreateCommonTestObjects
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