I would like our web-application to read images from our user's selected folder. The current UX is that the user must upload the folder of images, which takes an unacceptable amount of time, so we'd like to not require uploads. We're currently using the FileSystem API.
My hunch is that this is not doable with a web-app. If that's true, my next question is... can it be doable if it was a progressive web-app? What about an electron/desktop app?
EDIT:
Sorry I should have specified.... Given a folder of images, I would like to 1) prompt the user to accept permission for the app to read those images once and then 2) allow the app to read images from that folder forever, regardless of whether they log out or reopen the app. Will edit original post.
Thanks in advance
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I created a spring-boot web project and uploaded it to server already(centOS7).
currently the img upload to jar file on server is stored inside the static package in jar file
this makes the jar file very large and hard to edit.
can some one give me a idea to store the img somewhere else on server and how to find the position of picture out of jar inside html.
First of all, you have to decide, in which directory you are going to store your files and create it:
mkdir /path/to/your/dir
Then assign a newly created directory to your application user:chown <your user>:<users group> /path/to/your/dir
Then, don't forget to give read/write permissions for the user, under which you run your app - to the already created directory.
chmod 600 /path/to/your/dir - this will allow your app to only read/write to the directory and prevent the execution of files within it (for security reasons).
Then just replace the path you already have - with the new one (to the newly created directory).
Please, be aware that there is a lot of security stuff to consider when you're going to store files on your server.
By the way, please consider reading about different storage options like AWS S3, Google Cloud Storage and Ceph.
Please, take into account - that if you're going to store your files on your server - then you should take care about them (for example: keep eyes on space, make sure you have mirroring across discs and so on so forth). With AWS S3, for example, you don't need to care about all of that stuff and it's very cheap.
I am developing an open source application which should mount webdav share to local drive letter just like NETDRIVE and WEBDRIVE using node.js and electron-js, so in my application at present I am downloading all files from webdav share which takes a lot of time and not reliable for heavy data. Is there any other approach so that whenever user access a file, only that particular file should be fetched from webdav share, I’ve tried to display files meta data(dummy) structure in directory and kept that directory under file-watcher. So that when user tries to open a file then watcher should capture file open event to get which file was user trying to access, so that in background of application a service will triggered to fetch that particular file using file-path as reference, but none of them are unable to capture file open event. Is there any other approach to do so, correct me if I am in wrong direction.
Thank's
I think you want virtual file-system and recommend Dokan library.
Dokan is the start point of Windows virtual file-system application.
Open Source : Dokan (https://en.wikipedia.org/wiki/Dokan_Library)
Commercial: EldoS CBFS (https://www.eldos.com/cbfs)
Google, Naver use Dokan and NetDrive, RaiDrive(mine) use CBFS.
Bit of a loose question so if it gets marked down I'll remove it.. but..
I'm using Primefaces/Spring/Hibernate for Java server.
My application knows a load of file names I need to upload. Those files are on my local computer. Is it possible to tell the application the root directory of these files, for it to then setup uploads for each of these files without me needing to browse for each file individually?
I assume this is a browser security issue, i.e. the user needs to explicitly state which file the application is allowed to know about etc?
If not I'll have to do it in a local application but I was hoping there was a way a mass upload could be kicked off from the browser by just setting the local directory of the files.
I decided to use the Primefaces uploader, upload all the files in the directory and let the application sort them out once it has them on the server.
Usually, while we upload it takes files to the temp directory first and then move it to the desired directory. But I'm working on Big Data e.g. uploading thousands of files at once. So I need to upload those files directly to the desired location and as each one of them uploaded to that directory, the user must see the changes on the dashboard in real time.
Also I need to show user
If any exception has occurred while uploading e.g. if a file causing a problem in the uploading process.
There should be an option to skip that file or retry upload.
Report to show the list of files uploaded successfully vs files that failed to upload.
If there is any network outage, the upload manager should keep retrying until the network is restored.
User can pause upload and can restart it on next login(if it is feasible)
This is about full manipulation of the upload process to give user the best user experience while uploading large sets of data.
You can use ng2-file-upload, it has most of the feature you require.
You can also find demo here.
For rest of the features you require, you can implement those on top of this library (It's better than writing your own code from scratch).
There is a Cached File Updater contract which allows apps like OneDrive or DropBox to keep files in sync with remote repository when users change them though file pickers. It works roughly like this:
User gets a file using FileOpenPicker.
User changes file.
The source app gets notification that file is changed and uploads new file to backing storage.
However, while in official DropBox app this scenario works perfectly, in OneDrive app it doesn't. I'm getting UnauthorizedAccessException when try to get stream for read from a file. I understand some people actually able to change a file, but it doesn't get uploaded because only local copy changes.
So CachedFileUpdater is not implemented in OneDrive app? And if it's not, is it known issue and is there any workarounds for this?