I am trying to upload zip files to a asp.net server. Its working fine on my local box when I run the server from VS but not for larger zips remotely. Remotely I am running IIS6.
It works great both remotely and locally on zips smaller than about 10mb and has been for months. Only recently have I needed anything larger.
Here is my code for uploading:
WebClient client = new WebClient();
client.UploadProgressChanged += onProgress;
client.UploadFileCompleted += onComplete;
client.UploadFileAsync(new Uri(url), filePath);
return client;
My code for receiving is:
Request.Files[0].SaveAs(pathToSave);
My web.config looks like:
<httpRuntime maxRequestLength="102400" useFullyQualifiedRedirectUrl="true" executionTimeout="5400"/>
The error I am getting remotely is that Request.Files is length 0.
Any idea on this or the best way to debug?
Webclient is a wrapper for HttpWebRequest. and I recommend to user HttpWebRequestinstead.
as you cant override timeout on webclient.
i faced the same issue. and now I'm using HttpWebRequest. much much better.
I would highly recommend using Darren's asp.net upload/download control. Uploading large files in asp.net is a pain.
Related
I'm having an issue downloading a file. I'm running this website on my local IIS. The BaseUrl correctly has the address of my local IIS site. The moduleImgPath is a Sitecore media item: "/sitecore/shell/~/media/Racking/module-image.png". The BaseUrl has the structure "http://local-$company.com".
The code used for the download is essentiall shown below. The method errors on Image.FromStream() with a System.ArguementException - "Parameter is not valid."
Stream stream = new MemoryStream(new WebClient().DownloadData(RackingConfigHelper.BaseUrl + moduleImgPath));
Image objImage = Image.FromStream(stream);
My question essentially revolves around - can you use a WebClient this way, to download data from what essentially a local source? Or will I need to deploy this code to my test environment to test it out? If I can, do I need to worry about ports?
It looks like your image data is not a jpg (I think this is typically what is expected for Image).
You can see why the error happens on this msdn link
and you can see the docs for Image on this msdn link
I would hazard a guess you are either trying to use a non-jpg OR perhaps the jpg you have may be unusually formed.
I am writing a tool which will allow users to communicate with each other over the internet using a server and PHP files that I have set up. I have written it, but right now when I open the PHP files and pass arguments through the URL to create new files on my server, it opens the PHP file in my default browser. This is the code I am using right now to open the PHP files on my server:
private void ExecuteProcess(string FilePath)
{
Process Process = new Process();
Process.StartInfo.FileName = #FilePath;
Process.Start();
}
I want to be able to open files in a similar way without physically opening them in my browser. I have been googling around for a few hours, but whenever I try to user the methods that I find on the internet I get a 406 exception from Visual Studio, saying that the server cannot fufill my request? My write permissions are set to read for these files, do I need to change these?
Thanks for helping a PHP noobie,
-I
I think you want to make an HTTP request to your server. Check the WebRequest class.
When i used the web request class, there was a page 406 error, which meant that the servers acceptable headers were not comparable with the type of data I was requesting. By default, mod security is turned on on apache servers, and I just need to disable it to allow me to download data with the web request class.unfortunately, the server is hosted by a third party, so I will have to contact the web master in order to turn this off. I have opted just to host my own server, and avoid this hassle.
So I'm trying to Download a file using WebClient class but the problem is that when the download is finished the file that should be downloaded is 0 byte, I tried uploading the same file without extension and than changing it after download but that didn't help. What Can I do? This is the code I Use
WebClient updateDownloader = new WebClient();
updateDownloader.DownloadFile(new Uri("http://zazaia.ucoz.com/SomeExeFile.exe"),
Application.StartupPath + "\\SomeFile.EXE");
And also have DownloadCompleted event handler which just shows MessageBox and Disposes the WebClient.
There is nothing wrong with the code you have shown and this should work. The problem is on the server which is not returning the file properly. Also make sure that the site you are querying doesn't require some authentication before being able to download files. In addition to that don't forget that a WebClient will not execute any javascript, so if the server relies on it to download the file, this will not happen.
Have you checked that your antivirus is not interfering? Sometimes an automatic scan will lock an executable file being downloaded until it passes. The client code itself looks fine however.
What about the server side? If is one of your own applications serving the download, then it may not be setting the MIME header or even not handling the download correctly at all
I need to download a zip file created in realtime from a webservice.
Let me explain.
I am developing a web application that uses a SoapXml webservice. There is the Export function in the webservice that returns a temporary url to download the file. Upon request to download, the server creates the file and makes it available for download after a few seconds.
I'm trying to use
webClient.DownloadFile(url, #"c:/etc../")
This function downloads the file and saves it to me 0kb. is too fast! The server does not have time to create the file. I also tried to put
webClient.OpenRead(url);
System.Threading.Thread.Sleep(7000);
webClient.DownloadFile(url, #"c:/etc../");
but does not work.
In debug mode if I put a BREAK POINT on webClient.DownloadFile and I start again after 3, 4 seconds, the server have the time to create the file and I have a full download.
The developers of the webservice suggested me to use "polling" on the url until the file gets ready for the download. how does it work?
How can I do to solve my problem? (I also tried to DownloadFile Asynchronous mode )
I have similar mechanism in my application, and it works perfectly. WebClient does request, and waits, because server is creating response(file). If WebClient downloads 0kb that means that server responded to request with some empty response. This may not be a bug, but a design. If creating file takes long time, this method could result in timeouts. On the other hand if creating file takes short time, server side should respond with file(making WebClient hang on request, till the file is ready). I would try to discuss this matter with other developers and maybe redesign "file generator".
EDIT: Pooling means making requests in loop, for example every 2 seconds. I'm using DownloadData because it's useless, and resource consuming, to save empty file every time, which DownloadFile does.
public void PoolAndDownloadFile(Uri uri, string filePath)
{
WebClient webClient = new WebClient();
byte[] downloadedBytes = webClient.DownloadData(uri);
while (downloadedBytes.Length == 0)
{
Thread.Sleep(2000);
downloadedBytes = webClient.DownloadData(uri);
}
Stream file = File.Open(filePath, FileMode.Create);
file.Write(downloadedBytes, 0, downloadedBytes.Length);
file.Close();
}
I'm a newbie and I'm developing a windows application. I need to download a video file from my site and that's my issue here. I had designed a custom down-loader, through which I can download images, text files from my site. But I wasn't able download videos from my site. Could anyone please help me out..?
WebClient client = new WebClient();
client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(client_DownloadProgressChanged);
client.DownloadFileCompleted += new AsyncCompletedEventHandler(client_DownloadFileCompleted);
client.DownloadFileAsync(new Uri("http://mysitename.com/Videos/vid.mp4"), "c:\\movie.mp4");
I don't want to download by means of response content dispatch because my client wants me to download through custom browser.. so please let me know solutions from you experts.. thank you
I have tried to download a video file with WebClient and it works. My setup is as below:
I have a virtualdirectory(Video) in defaultwebsite (IIS) which has this video file.
I just use the below code to download the video file to C drive:
var client = new WebClient();
Uri address = new Uri("http://localhost/Video/wildlife.wmv");
client.DownloadFileAsync(address, #"c:\video.wmv");
Also note since you are downloading in Async fashion, wait for about a min for the operation to complete for the full file to be downloaded. Initially it shows 0 bytes but based on the size it takes some time to complete it.
UPDATE: If your server doesnt have the file mime type specified then just add to the collection of mime types that IIS can serve and you can download the file without any problem.
When adding MIME type the following values to be used are (for your scenario):
File Extension: .mp4
MIME Type: video/mp4
To add mime types in IIS follow these links:
For IIS 4,5
For IIS 6
For IIS 7
This sounds more like a server issue, but if you are doubting your code, you may want to try download sync (I have had some issues in the past downloading async). Another way is to use the WebRequest class. If this server is very remote, try pinging beforehand. I think that you should also check to make sure the file is on the server, and if the file is really big, you should check to see if the file finished uploading.