.NET Web MVC
Video Upload
The following sections describe how to handle video uploads on your server using .NET Web MVC as a server-side language. For information on the upload workflow refer to the video upload documentation.
Frontend
Setting up the main index page.
- On the
headsection include the Editor style. - On the
bodysection include the Editor JS files and define the area for the editor. - Initialize the editor and set the video upload URL
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link href="https://cdn.jsdelivr.net/npm/froala-editor@latest/css/froala_editor.pkgd.min.css" rel="stylesheet" type="text/css" />
</head>
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/froala-editor@latest/js/froala_editor.pkgd.min.js"></script>
<div class="sample">
<h2>Video upload example.</h2>
<form>
<textarea id="edit" name="content"></textarea>
</form>
</div>
<script>
new FroalaEditor('#edit', {
// Set the video upload URL.
videoUploadURL: '/UploadFiles',
videoUploadParams: {
id: 'my_editor'
}
})
</script>
</body>
</html>
The full code should look like this:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<link href="https://cdn.jsdelivr.net/npm/froala-editor@latest/css/froala_editor.pkgd.min.css" rel="stylesheet" type="text/css" />
</head>
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/froala-editor@latest/js/froala_editor.pkgd.min.js"></script>
<div class="sample">
<h2>Video upload example.</h2>
<form>
<textarea id="edit" name="content"></textarea>
</form>
</div>
<script>
new FroalaEditor('#edit', {
videoUploadURL: '/UploadFiles',
videoUploadParams: {
id: 'my_editor'
}
})
</script>
</body>
</html>
Backend
<HomeController.csis the default controller used to define the upload action. The uploads directory is created automatically if it does not exist under wwwroot/upload/. The root directory must be writable, otherwise the upload directory will not be created.
HomeController manages the request and the upload action. If the uploaded video passes the validation step, the server responds with a JSON object containing a link to the uploaded video.
e.g.: {"link":"http://server_address/upload/name_of_file"}.
The following example shows the functions you should define in this file:
public class HomeController : Controller
{
public ActionResult UploadFiles()
{
if (Request.Files["file"] != null)
{
HttpPostedFileBase MyFile = Request.Files["file"];
// Setting location to upload files
string TargetLocation = Server.MapPath("~/Files/");
try
{
if (MyFile.ContentLength > 0)
{
// Get File Extension
string Extension = Path.GetExtension(MyFile.FileName);
// Determining file name. You can format it as you wish.
string FileName = Path.GetFileName(MyFile.FileName);
FileName = Guid.NewGuid().ToString().Substring(0, 8);
// Determining file size.
int FileSize = MyFile.ContentLength;
// Creating a byte array corresponding to file size.
byte[] FileByteArray = new byte[FileSize];
// Basic validation for file extension
string[] AllowedExtension = { ".mp4", ".webm", ".ogg"};
string[] AllowedMimeType = { "video/mp4", "video/webm", "video/ogg" };
if (AllowedExtension.Contains(Extension) && AllowedMimeType.Contains(MimeMapping.GetMimeMapping(MyFile.FileName)))
{
// Posted file is being pushed into byte array.
MyFile.InputStream.Read(FileByteArray, 0, FileSize);
// Uploading properly formatted file to server.
MyFile.SaveAs(TargetLocation + FileName + Extension);
string json = "";
Hashtable resp = new Hashtable();
string urlPath = MapURL(TargetLocation) + FileName + Extension;
// Make the response an json object
resp.Add("link", urlPath);
json = JsonConvert.SerializeObject(resp);
// Clear and send the response back to the browser.
Response.Clear();
Response.ContentType = "application/json; charset=utf-8";
Response.Write(json);
Response.End();
}
else
{
// Handle validation errors
}
}
}
catch (Exception ex)
{
// Handle errors
}
}
return View();
}
// Convert file path to url
// http://stackoverflow.com/questions/16007/how-do-i-convert-a-file-path-to-a-url-in-asp-net
private string MapURL(string path)
{
string appPath = Server.MapPath("/").ToLower();
return string.Format("/{0}", path.ToLower().Replace(appPath, "").Replace(@"\", "/"));
}
}
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