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POReturning File in a site with Authentication
 

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    <p>crosspost: <a href="https://orchard.codeplex.com/discussions/471384" rel="nofollow">https://orchard.codeplex.com/discussions/471384</a></p> <p>I'm using Orchard CMS 1.7 and we locked the entire site from anonymous users (admin -> users -> roles -> untick site front-end). Now, each page or file requires folks to be authenticated before getting access to them.</p> <p>Now, we're trying to provide the option of having some files available for download, depending on a field from a specific Content Type.</p> <p><strong>The ISSUE</strong></p> <p>When I download the file while I am authenticated, I get the it without issues. If I'm anonymous, I get the file (correct filename and type) but it has no contents and size (0 bytes). I'm pretty sure this is an auth issue since it all works well when I enable anonymous access to site front end.</p> <p>This is the actual code of returning the file (redirectLink is the filepath):</p> <pre><code> var cd = new System.Net.Mime.ContentDisposition { FileName = fileName, Inline = false }; Response.AppendHeader("Content-Disposition", cd.ToString()); return File(HttpUtility.UrlDecode(redirectLink), mimeType); </code></pre> <p>Here is my complete code (Controller Action):</p> <pre><code> [AlwaysAccessible] public ActionResult Download(int resourceId) { //set default unsecure value to false bool isUnsecured = false; var resourceItem = ContentManager.Get(resourceId); if (resourceItem == null || resourceItem.ContentType != "Resource") { // TODO: log that ID not found?? return new HttpStatusCodeResult(HttpStatusCode.NotFound); } var resourcePart = resourceItem.Parts.FirstOrDefault(p =&gt; p.PartDefinition.Name == resourceItem.ContentType); //retrieve unsecure boolean if (resourcePart != null) { var unsecuredField = resourcePart.Fields.FirstOrDefault(f =&gt; f.Name == "Unsecured"); if (unsecuredField != null) { isUnsecured = unsecuredField.Storage.Get&lt;bool&gt;(); } } //check if unsecured resource / allow anonymous downloads //see Orchard.Security.SecurityFilter - I'm not sure where this is actually used in Orchard though... if (!isUnsecured &amp;&amp; !Services.Authorizer.Authorize(StandardPermissions.AccessFrontEnd, T("Unauthenticated"))) { return new HttpUnauthorizedResult(); } if (resourcePart != null) { // TODO: Potential concurrency issues? var downloadCountPart = resourcePart.As&lt;DownloadCountPart&gt;(); if (downloadCountPart != null) { downloadCountPart.Total++; ContentManager.Publish(resourceItem); } // Do the redirection/serving of item! // Prioritize link field over resource field, according to the UI var linkedField = resourcePart.Fields.FirstOrDefault(f =&gt; f.Name == "LinkedFile"); if (linkedField != null) { var redirectLink = linkedField.Storage.Get&lt;string&gt;(); if (redirectLink != null) { return Redirect(redirectLink); } } var resourceField = resourcePart.Fields.First(f =&gt; f.Name == "ResourceFile"); if (resourceField != null) { var resourceMPF = (resourceField as MediaLibraryPickerField); if (resourceMPF != null &amp;&amp; resourceMPF.MediaParts != null &amp;&amp; resourceMPF.MediaParts.Count() &gt; 0) { var fileName = resourceMPF.MediaParts.First().FileName; var mimeType = resourceMPF.MediaParts.First().MimeType; var redirectLink = resourceMPF.MediaParts.First().MediaUrl; //to check: first? when are there multiple? if(!string.IsNullOrWhiteSpace(redirectLink)) { var cd = new System.Net.Mime.ContentDisposition { FileName = fileName, Inline = false }; Response.AppendHeader("Content-Disposition", cd.ToString()); return File(HttpUtility.UrlDecode(redirectLink), mimeType); } } } } return new HttpStatusCodeResult(HttpStatusCode.NotFound); } </code></pre> <p>Which leads me to these questions:</p> <ol> <li>Event with return File, it still takes into account the current user and whether that person is authenticated? </li> <li>Can I use impersonation to bypass this issue?</li> </ol> <p>Any piece of advise or information would be highly appreciated. Thanks!</p>
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