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POServing protected files with Django and Nginx X-accel-redirect
 

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  1. POServing protected files with Django and Nginx X-accel-redirect
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    <p>I'm trying to get Nginx and Django to play together to serve downloadable protected files. I just cannot get it to work. Here's my Nginx config:</p> <pre><code>location ~ ^.*/protected-test/ { alias /&lt;path-to-my-protected-files-on-server&gt;/; internal; } </code></pre> <p>the relevant urls.py for viewing the file(s):</p> <pre><code>url(r'^static_files/downloads/protected-test/(?P&lt;filename&gt;.+)$', 'download_or_view', {'download_dir': '%s%s' % (settings.MEDIA_ROOT, 'downloads/protected-test/'), 'content_disposition_type': 'inline', 'protected': 'True'}, name='protected_files') </code></pre> <p>my view:</p> <pre><code>def download_or_view(request, content_disposition_type, download_dir, filename=None, protected=False): '''Allow a file to be downloaded or viewed,based on the request type and content disposition value.''' if request.method == 'POST': full_path = '%s%s' % (download_dir, request.POST['filename']) short_filename = str(request.POST['filename']) else: full_path = '%s%s' % (download_dir, filename) short_filename = str(filename) serverfile = open(full_path, 'rb') contenttype, encoding = mimetypes.guess_type(short_filename) response = HttpResponse(serverfile, mimetype=contenttype) if protected: url = _convert_file_to_url(full_path) response['X-Accel-Redirect'] = url.encode('utf-8') response['Content-Disposition'] = '%s; filename="%s"' % (content_disposition_type, smart_str(short_filename)) response['Content-Length'] = os.stat(full_path).st_size return response </code></pre> <p>I have 2 values in my settings file:</p> <pre><code>NGINX_ROOT = (os.path.join(MEDIA_ROOT, 'downloads/protected-test')) NGINX_URL = '/protected-test' </code></pre> <p>_convert_file_to_url() takes the full file path and, using the two settings values above, turns it into a url that (I thought) Nginx would allow: </p> <pre><code>&lt;domain-name&gt;/protected-test/&lt;filename&gt; </code></pre> <p>So, if I try to access:</p> <pre><code>&lt;domain-name&gt;/static_files/downloads/protected-test/&lt;filename&gt; </code></pre> <p>In my browser window, it doesn't allow it (404). Good.</p> <p>BUT - if I try to access that url from a form download, which I want to allow, I get a redirect in the browser to:</p> <pre><code>&lt;domain-name&gt;/protected-test/&lt;filename&gt; </code></pre> <p>and it's a 404 as well.</p> <p>I've tried so many different configurations my brain now hurts. :-)</p> <p>Should I not be reading the file with open(), and let Nginx serve it? If I remove that line, it returns a file with the dreaded zero bytes. Why do I still get a 404 on the redirected url??</p>
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