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  • Jonathan Roberts 372 posts 1005 karma points
    Oct 26, 2016 @ 11:08
    Jonathan Roberts
    0

    Hi, I would like to restrict CMS users from adding large files to the Media library. Is there an extension i could write to validate files uploaded?

    Jon

  • Dennis Aaen 4466 posts 18003 karma points admin hq c-trib
    Oct 26, 2016 @ 20:45
    Dennis Aaen
    0

    Hi Jon,

    If you want exclude specific file extensions to be uploaded to the media library then you can add the file extension(s) to the Disallow section in the umbracoSettings.config.

     <!-- These file types will not be allowed to be uploaded via the upload control for media and content -->
        <disallowedUploadFiles>ashx,aspx,ascx,config,cshtml,vbhtml,asmx,air,axd,swf,xml,html,htm,svg,php,htaccess</disallowedUploadFiles>
    

    Hope this helps,

    /Dennis

  • Casper 69 posts 306 karma points
    Oct 27, 2016 @ 19:45
    Casper
    0

    In order to cancel out large files, you could go about doing a class that derive from ApplicationEventHandler and hook up to MediaService.Saving event:

    using System;
    using System.Linq;
    using Umbraco.Core;
    using Umbraco.Core.Events;
    using Umbraco.Core.Services;
    
    namespace App.EventHandlers
    {
    
        public class AppEventHandler : ApplicationEventHandler
        {
            const int MAX_SIZE = 100000;
    
            protected override void ApplicationStarting(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
            {
                MediaService.Saving += (sender, e) =>
                {
                    foreach (var entity in e.SavedEntities)
                    {
                        var property = entity?.Properties?.First(p => p.Alias.InvariantEquals("umbracobytes"));
                        if (property != null)
                        {
                            var size = Convert.ToInt32(property.Value);
                            if (size > MAX_SIZE)
                                if (e.CanCancel)
                                    e.Cancel = true; // todo: explain cancel in notification
                        }
                    }
                };
            }
        }
    
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