add alert if corruption of files can not be checked and add optional nginx config for http to https redirect; always show preview of first file if image;

docker/nginx/development.conf

@@ -0,0 +1,46 @@
+server {
+    listen       80;
+
+    expires epoch;
+
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+
+    location /server {
+        proxy_connect_timeout 300;
+        proxy_pass http://node:3000;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Upgrade $http_upgrade;
+    }
+
+    location /ca.crt {
+        alias /etc/ssl/certs/snapdropCA.crt;
+    }
+}
+
+server {
+    listen       443 ssl http2;
+    ssl_certificate /etc/ssl/certs/snapdrop-dev.crt;
+    ssl_certificate_key /etc/ssl/certs/snapdrop-dev.key;
+
+    expires epoch;
+
+    location / {
+        root   /usr/share/nginx/html;
+        index  index.html index.htm;
+    }
+
+    location /server {
+        proxy_connect_timeout 300;
+        proxy_pass http://node:3000;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Upgrade $http_upgrade;
+    }
+
+    location /ca.crt {
+        alias /etc/ssl/certs/snapdropCA.crt;
+    }
+}
+