Is there any way to share the local storage between different instances of web browsers?
At the moment I have a web browser which saves data in the local storage then with an animation another web browser enter the screen, can I use the data saved by the previous browser?
I have seen that in the isostorage there is a directory Internet Explorer/DOMStore/ which contain some sub-directory and for every browser the localstorage is saved in a different directory. There's any way to prevent this and make them save in the same directory?
I hope I made myself clear on the problem
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My asp.net web application is some kind of "document managment system" saving files in the file system of the server.
The stored files are shown in an asp:ListView control and are downloadable as HTTP- Download. But I also want to drag&drop them into another browser window to upload the draged file to an cloud storeage like dropbox or google drive oslt.
I did some research and I didn't find any solution for this problem. I don't know if this is even possible. Maybe someone has an idea how this could be done?
I am pretty sure you can't have a web application doing that for you because it involves having your web language interacting with your computer, to move a local file to another window or tab in the browser.
It would be similar to have Javascript accessing your local files without the user "help". That is not allowed.
Rather than doing that, why not connect to Google Drive or Dropbox API and make the upload yourself?
In the piece of code where you trigger the download, you could also trigger an upload to the desired service.
Here are the API Documentation for the mentioned services:
https://www.dropbox.com/developers/documentation/http/documentation#file_requests-create
https://developers.google.com/drive/api/v3/manage-uploads
The first web app is the website and the other one is control panel .So from control panel admin upload image that must be shown in the website.
the two webapp are in the under same resource.
Look into storing the image as a Blob in Blob Storage. A storage account can be access from multiple applications.
There are several reasons you don't want to (and cannot) store it under the web app. One of them being that ...
Temporary files are not shared among site instances. Also, you cannot rely on them staying there. For instance, if you restart a web app, you'll find that all of these folders get reset to their original state.
Source: Understanding the Azure App Service file system - Temporary files
In a WebMatrix web site, where User Profiles are dynamically generated from the Database, where and how should I store user uploaded content?
I don't want this content to be publicly viewable unless the user has chosen make their profile, and uploaded content Publicly viewable.
But I can't just shove it all in a separate directory, since all you need to do is guess the location where such content is stored, and then browse the list of files in that dir. So, should I place it outside my \root directory (I don't think this is possible in some Shared hosting environments), or should I somehow insert this content into a database? (I'm trying to avoid this option as best as I can).
For content like Images and Videos, I was thinking that I should use a trusted Storage provider / image host type service where I would have API access used to store and retrieve these files, and then just store a link to the file uploaded to the file storage host in my database?
You could either
Store the extra files along the other user details in the database. (you probably want to discuss this with the db admins before implementing your storage like this)
Put the files on a fileshare your ASP.NET application has access to but that is not accessible from the web.
Turn of directory browsing and put the files there. "everyone" can't browse all files but it does mean that anyone that has a direct link can download that file without being logged in.
I would go with option 2: Put the files in a directory not directly accessible from the web and channel all downloads through your web app so that you control who can download what.
Lets say we have photographers who use one computer in a department. They take pictures of an event then upload and organize pictures in an application. That application by default takes someone's shared location and copies pictures to that share.
On a web server there is a share we point it to. We want to make it so ONLY that application can access that share, and only THAT web application (of course, anyone with admin login to the physical server can).
Also make it so that any web browser can display the image (I believe Firefox can't take a file location of \\server\share)
Logically it would look like this:
Photographer uses an application on a public computer
Application copies images to share
Web application uses images (cross browser)
No user from public computer can access those images EDIT: the displaying on the webpage is not the problem, its how I store files in the webroot securely, so that my app can SHOW the images that are located within a shared location in a webroot. Allowing only the application on a terminal computer to access that share and NOT the user running the application from that computer. I.e. a person cant just run a command and download the entire directory contents from wherever he wants.
Wait, what? You want to show the users some pictures in a browser, but don't allow them to download them? That's impossible.
Simply configure your share's permissions (ie right click on it) to be limited to a certain windows user. Run your application under that windows user so it will have access to that share. Done!
Create a service account and run/impersonate your web and desktop applications with the
service account
Share the pictures (located on the shared drive) for the service account so that no other
user can access
I have a WebForm application that generates a Crystal Report and streams it to the browser as a PDF.
My users would like the app (well, the Browser I suppose!) to always prompt them where to save the file (a network path) and then store that path (probalby in the SQL table that stores their profile info) and always use that path as the default on subsequent attempts.
I am pretty sure I know how to force the browser (IE) to always prompt them where to save the PDF or open it, and I can name the file (attachment), but how can I automatically populate that dialog box that appears (when thy choose to save the file) with a path? Is there some other way I can accomplish this (use a different mime type or something?)?
I suppose instead of streaming the file back, I can just prompt them for where they want to save and (with elevated permissions on the App Pool Identity) save it out to that path from the server. Since this is an Intranet application, the App Pool does already have some elevated permissions, because it must check certain network paths to see if files exist (it is also a Change/Revision app for CAD Math Data files).
How would you handle it?
You absolutely can not force the web browser to choose any particular location by default to save files, without third-party plugins (most of which I hope would also similarly prevent this sort of thing, which could be used for Evil)
So, if the server has access over the Intranet, that's how you'll have to do it.