DLFileEntryLocalServiceUtil.getFileAsStream(...) not working in my server I have s3 configuration for document and media. This method perfectly working without any issue in local server where s3 not configured. Does this require any extra configuration.
I basically want to convert DLFileEntry into File so I had used another method.
File file = DLFileEntryLocalServiceUtil.getFile(user.getUserId(),dlFileEntry.getFileEntryId(), dlFileEntry.getVersion(), true);
Related
I have a Blazor Server 6.0 app where I have links to download .msg files.
I have setup IIS to serve that mime-type trying both application/octet-stream and application/vnd.ms-outlook (and restarting IIS)
I have also tried to put in web.config the staticcontent tag like suggested here:
.msg file gives download error
And obviously in my program.cs I have app.UseStaticFiles();
I try to put the .msg in a non-blazor app and they work ok, so I think is not IIS related
So why I cannot download (or open automatically in outlook) this type of file, while other (docx, pdf, zip, etc.) are Ok ?
ASP.NET Core -- on the server side -- also needs to know about the files it has to serve. You can enable serving all unknown file types (I'd rather not include the relevant code as it is a major security risk), or you can add you own additional mappings like so:
var provider = new FileExtensionContentTypeProvider();
provider.Mappings[".msg"] = "application/vnd.ms-outlook";
// app.UseStaticFiles();
app.UseStaticFiles(new StaticFileOptions()
{
ContentTypeProvider = provider
});
More info in the official docs: https://learn.microsoft.com/en-us/aspnet/core/fundamentals/static-files?view=aspnetcore-7.0#fileextensioncontenttypeprovider
Additionally, Blazor Server registers custom options for serving static files (like .server.js, which is different from just .js). It's not directly exposed as a public API to configure, but you can look at the source here as to what the AddServerSideBlazor extension method actually does. The solution there relies on you calling UseStaticFiles without explicitly specifying the options, so that it can retrieve the StaticFilesOptions instance from DI.
Armed with this knowledge, you can override an already configured options instance as follows:
builder.Services.PostConfigure<StaticFileOptions>(o =>
{
((FileExtensionContentTypeProvider)o.ContentTypeProvider).Mappings[".msg"] = "application/vnd.ms-outlook";
});
This configures the already initialized options instance registered in the DI (after all other configurations happened on it, thus PostConfigure).
Note that if you would for whatever reason decide to use a different IContentTypeProvider, the unsafe cast above would need to be revised as well.
I''m developing an android app, a web server using flask and firebase.
When client app uploads an image file, the web server saves an image url in database.
And then, client app gets the image url and open image from firebase storage.
So my web server, and app don't know file name.
However, to delete a file in storage,
Knowing the file's name is needed.
Only what I can get is file url.
How can my web server delete a file using file url?
The following code is for deleteting file using filename.
I wanna change this code to deleteting file using file url.
bucket = storage.bucket('<BUCKET_NAME>')
def deleteFile(imageName):
try:
bucket.delete_blob('profile_images/' + imageName)
bucket.delete()
return True
except Exception as e:
print(e)
return False
The Storage client in the Firebase Admin SDK is a thin wrapper around the Node.js client for Google Cloud Storage. And as far as I know the latter doesn't have a way to map the download URL back to a File.
This means that you'll have to find the path from the client using FirebaseStorage.getReferenceFromUrl(), and then pass that path to your web server. That way the JavaScript code can use the path to create a reference to the File.
Problem:
trying to get an image out of azure fileshare for manipulation. I need to read the file as an Drawing.Image for manipulation. I cannot create a valid FileInfo object or Image using uncpath (which I need to do in order to use over IIS)
Current Setup:
Attach a virtual directory called Photos in IIS website pointing to UNCPath of the Azure file share (e.g. \myshare.file.core.windows.net\sharename\pathtoimages)
This works as http://example.com/photos/img.jpg so I know it is not a permissions or authentication issue.
For some reason though I cannot get a reference to File.
var imgpath = Path.Combine(Server.MapPath("~/Photos"),"img.jpg")
\\resolves as \\myshare.file.core.windows.net\sharename\pathtoimages\img.jpg
var fi = new FileInto(imgpath);
if(fi.exists) //this returns false 100% of the time
var img = System.Drawing.Image.FromFile(fi.FullName);
The problem is that the file is never found to exist, even though I cant take that path and put it in an explorer window and return the img.jpg 100% of the time.
Does anyone have any idea why this would not be working?
Do I need to be using CloudFileShare object to just get a read of a file I know is there?
It turns out the issue is that I needed to wrap my code in an impersonation of the azure file share userid since the virtual directory is not really in play at all at this point.
using (new impersonation("UserName","azure","azure pass"))
{
//my IO.File code
}
I used this guys impersonation script found here.
Can you explain why DirectoryInfo.GetFiles produces this IOException?
I have deployed an ASP.NET CORE web API project on Azure app services. I have copied a file using an FTP client to /site/wwwroot. Now let suppose file name is xyz.jpg, so it should be accessible with link somename.azurewebsites.net/xyz.jpg but ITS NOT. I have tried pasting the file in other folders to but nothing works.
I also have a controller for uploading pictures. It's also working fine. It uploads the picture in desired folder, i can see the picture via FTP client but still the picture is not accessible via any link. What am I doing wrong here ?
For a Web API application, you have to define the request and response yourself in the controller, or your link can't be recognized by the application.
For example, you can add the method to your controller. It works on my side.
[Route("myroute/{pic}")]
public IActionResult Get(string pic)
{
Byte[] b = System.IO.File.ReadAllBytes("image/"+pic);
return File(b, "image/jpeg");
}
In my code, pictures are stored in the folder called image in the root directory, and I define a route called myroute.
Here's my link to access the picture.https://myappname.azurewebsites.net/myroute/mypicname.jpg
Hope it helps.
When I upload a picture, the file is successfully saved and the path is successfully set. But the uploaded image is not displayed immediately after the form submit. Only when I reload the page, the uploaded image is displayed.
I'm saving the uploaded file as below:
InputStream is;
try {
File file = new File("C:\\****\\*****\\Documents\\NetBeansProjects\\EventsCalendary\\web\\resources\\images\\uploadPhoto.png");
is = event.getFile().getInputstream();
OutputStream os = new FileOutputStream(file);
setUserPhoto("\\EventsCalendary\\resources\\images\\"+file.getName());
byte buf[] = new byte[1024];
int len;
while ((len = is.read(buf)) > 0) {
os.write(buf, 0, len);
}
os.close();
is.close();
} catch (IOException ex) {
System.out.println(ex.getStackTrace());
}
Why is the uploaded image only displayed after reloading the page and how can I solve this?
You're writing the file straight into the IDE's project folder and your intent seems to save the file in the webapp's deploy folder. This is a bad idea and well due to the following 3 main reasons:
Changes in the IDE's project folder does not immediately get reflected in the server's work folder. There's kind of a background job in the IDE which takes care that the server's work folder get synced with last updates (this is in IDE terms called "publishing"). This is the main cause of the problem you're seeing.
In real world code there are circumstances where storing uploaded files in the webapp's deploy folder will not work at all. Some servers do (either by default or by configuration) not expand the deployed WAR file into the local disk file system, but instead fully in the memory. You can't create new files in the memory without basically editing the deployed WAR file and redeploying it.
Even when the server expands the deployed WAR file into the local disk file system, all newly created files will get lost on a redeploy or even a simple restart, simply because those new files are not part of the original WAR file.
You need to write it to a fixed path outside the project/deploy folder instead. For example, /var/webapp/uploads. Then, to get it to be served by your webapp, just add it as a new web application context to the server.
Based on your previous question, I know that you're using Glassfish 3.1. In this server, it's called a "virtual host". You can configure it at server level in the admin console at http://localhost:4848 > Configuration > HTTP Service > Virtual Servers, or at webapp level by adding the following line to the /WEB-INF/glassfish-web.xml (your IDE should have autogenerated one; note that this file is before Glassfish 3.1 called sun-web.xml, so if you're seeing manuals/blogs/tutorials referencing it, yes it's exactly the same file):
<property name="alternatedocroot_1" value="from=/uploads/* dir=/var/webapp" />
Either way, you should then be able to use http://localhost:8080/contextname/uploads/* to serve those uploaded images from by <img> the usual way.
See also:
How to upload files to server using JSP/Servlet?
Recommended way to save uploaded files in a servlet application (contains a Tomcat configuration example)
Reading/writing a text file in a servlet, where should this file be stored in JBoss? (contains JBoss configuration example)
Simplest way to serve static data from outside the application server in a Java web application