basic file sending/viewing

viewer/views.py

@@ -37,3 +37,24 @@ def browse(request, directory_id):
             )
         }
         return render(request, 'message.html', context, status=500)
+
+
+def file(request, directory_id, file):
+    dir = get_object_or_404(ServedDirectory, id=directory_id)
+    if os.path.isdir(dir.path):
+        path = os.path.join(dir.path, file)
+        if os.path.exists(path):
+            return FileResponse(open(path, 'rb'))
+        else:
+            context = {
+                'title': 'Invalid File',
+                'message': 'The file requested from this directory was not found on the server.'
+            }
+            return render(request, 'message.html', context, status=500)
+    context = {
+        'title': 'Invalid Directory',
+        'message': 'The path this server directory points to {}.'.format(
+            'exists, but is not a directory' if os.path.exists(dir.path) else 'does not exist'
+        )
+    }
+    return render(request, 'message.html', context, status=500)