zaru | Filename sanitization for Ruby | Data Manipulation library

I am using Symfony v4.1.* with OneUpUploaderBundle. I need to set unique name for each uploaded file - that works.

I have tree structure, that contains uploaded files. In order to manage files in the tree i have multiple properties. Some of them are:

1. itemName (transliterated file name + counter + unique_sting)
2. itemOriginalName (transliterated file name + counter)
3. itemExtension (file extension - for example .txt or .a if directory)
4. itemSortValue (file extension + transliterated file name + counter + unique_sting)

ItemSortValue assures that tree branches (fields) are sorted alphabetically.

I need also to persist information about uploaded file in database. For that purpose i need to get each complete file name that is managed by UploadNamer in my UploadListener in onPostUpload event.

I am trying to use the gem webpush to create push notifications at my rails app.

At this part at tutorial he say:

"Use webpush to generate a VAPID key that has both a public_key and private_key attribute to be saved on the server side."

First of all, I've already check these questions, without any luck:

• Web Push API Chrome, returning "Unauthorized Registration"
• [WebPush][VAPID] Request fails with 400 UnauthorizedRegistration

I am trying to implement web push notifications for a web app that I'm working on. Currently, I've achieved the following goals:

• Create a VAPID keys pair (with this guide).
• Register a service worker (only a service worker, I think that manifest.json is no longer required).
• Subscribe the user to the server (subscription data will be stored in the database).
• Send a push notification with webpush gem.

After setting it up, everything works fine (on localhost and on a remote machine). However, after some hours (between 12 and 24 hours), the notifications stop working on the remote machine (localhost works perfectly). After that time, the following errors are thrown when sending the push notifications from the server side (Rails):

• Chrome: UnauthorizedRegistration 400 (no extra info).
• Firefox: {"code": 401, "errno": 109, "error": "Unauthorized", "more_info": "http://autopush.readthedocs.io/en/latest/http.html#error-codes", "message": "Request did not validate Invalid bearer token: Auth > 24 hours in the future"}

After this error appeared, I tried to unsubscribe and resubscribe the user on every page visit. The subscription field on the db is updated after the resubscription is done, but the error is still being thrown, with the same information. No errors are thrown on the browser, nor service worker.

I've tried to force the resubscription manually by placing some js code on the Chrome Dev Tools console, unregistering the service worker, and reseting the push notification permissions, but nothing solves the error. I can only fix this error by creating a new VAPID key pair rebooting the remote machine. After crebooting the machine, I've another 12-24 hours before it fails again. Also, the notifications send process don't work neither on rails server (nginx + unicorn), rails console, nor irb.

I don't know where to go from now. Even worst, I can only try fixes once a day, since it'll break every 24 hours. I think I need some external help with a fresh vision of the problem. Am I missing something? Is there any OS dependency that VAPID uses and needs to be restarted?

Here are some code snippets that may be useful. Sorry for the mess, but I've done tons of modifications to try making it work.

Service worker registration:

How can we make the browser notification icon and body dynamically customized based upon the @challenge.image and the @challenge.description?

I got the notification to pop up by clicking webpush-button, but only the title of the message is dynamically changing. How can I make it work for body and icon too?

challenges/show.html.erb

As soon as a person comes to my site they are confronted with...

But I only want that popup to occur after a user clicks "Push" so that the user may understand the context of the request.

How to only trigger the browser notification request upon a user clicking "Push"?

I implemented push via serviceworker gem, webpush gem, VAPID tutorial.

I have in challenge_reminder.rake

When a user clicks...

Every time I try to start up my server I get this error...

I have a separate class with a JFrame, that opens when user clicks a button on my main frame. The frame has a JTextPane which displays the content. I open my file with the code written below. But in Slovenia we have certain letters which don't show correctly (ex. Grilled chicken = piščanec na žaru... where š,č and ž show like squares).

My question is, is it even possible to set the UTF-8 encoding for the text or a file, without changing font? Font has to stay default (using NetBeans).