nginx + metronome config for http_upload

data/hooks/conf_regen/12-metronome

@@ -47,6 +47,10 @@ do_post_regen() {
   # create metronome directories for domains
   for domain in $domain_list; do
     mkdir -p "/var/lib/metronome/${domain//./%2e}/pep"
+    # http_upload directory must be writable by metronome and readable by nginx
+    mkdir -p  "/var/www/xmpp-upload.${domain}/upload"
+    chmod g+s "/var/www/xmpp-upload.${domain}/upload"
+    chown -R metronome:www-data "/var/www/xmpp-upload.${domain}"
   done
 
   # fix some permissions

data/templates/metronome/metronome.cfg.lua

@@ -85,7 +85,7 @@ use_ipv6 = true
 disco_items = {
 	{ "muc.{{ main_domain }}" },
 	{ "pubsub.{{ main_domain }}" },
-	{ "upload.{{ main_domain }}" },
+	{ "xmpp-upload.{{ main_domain }}" },
 	{ "vjud.{{ main_domain }}" }
 };
 
@@ -141,11 +141,16 @@ Component "pubsub.{{ main_domain }}" "pubsub"
 	unrestricted_node_creation = true -- Anyone can create a PubSub node (from any server)
 
 ---Set up a HTTP Upload service
-Component "upload.{{ main_domain }}" "http_upload"
+Component "xmpp-upload.{{ main_domain }}" "http_upload"
 	name = "{{ main_domain }} Sharing Service"
 
+	http_file_path = "/var/www/xmpp-upload.{{ main_domain }}/upload"
+	http_external_url = "https://xmpp-upload.{{ main_domain }}:443"
+	http_file_base_path = "/upload"
 	http_file_size_limit = 6*1024*1024
 	http_file_quota = 60*1024*1024
+	http_upload_file_size_limit = 100 * 1024 * 1024 -- bytes
+	http_upload_quota = 10 * 1024 * 1024 * 1024 -- bytes
 
 
 ---Set up a VJUD service

data/templates/nginx/server.tpl.conf

@@ -6,7 +6,7 @@ map $http_upgrade $connection_upgrade {
 server {
     listen 80;
     listen [::]:80;
-    server_name {{ domain }};
+    server_name {{ domain }} xmpp-upload.{{ domain }};
 
     access_by_lua_file /usr/share/ssowat/access.lua;
 
@@ -97,3 +97,84 @@ server {
     access_log /var/log/nginx/{{ domain }}-access.log;
     error_log /var/log/nginx/{{ domain }}-error.log;
 }
+
+# vhost dedicated to XMPP http_upload
+server {
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
+    server_name xmpp-upload.{{ domain }};
+
+    location /upload {
+        alias /var/www/xmpp-upload.{{ domain }}/upload;
+        # Pass all requests to metronome, except for GET and HEAD requests.
+        limit_except GET HEAD {
+          proxy_pass http://localhost:5290;
+        }
+
+        include proxy_params;
+        add_header 'Access-Control-Allow-Origin' '*';
+        add_header 'Access-Control-Allow-Methods' 'HEAD, GET, PUT, OPTIONS';
+        add_header 'Access-Control-Allow-Headers' 'Authorization';
+        add_header 'Access-Control-Allow-Credentials' 'true';
+        client_max_body_size 105M; # Choose a value a bit higher than the max upload configured in XMPP server
+    }
+
+    ssl_certificate /etc/yunohost/certs/{{ domain }}/crt.pem;
+    ssl_certificate_key /etc/yunohost/certs/{{ domain }}/key.pem;
+    ssl_session_timeout 5m;
+    ssl_session_cache shared:SSL:50m;
+
+    {% if compatibility == "modern" %}
+    # Ciphers with modern compatibility
+    # https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=nginx-1.6.2&openssl=1.0.1t&hsts=yes&profile=modern
+    # The following configuration use modern ciphers, but remove compatibility with some old clients (android < 5.0, Internet Explorer < 10, ...)
+    ssl_protocols TLSv1.2;
+    ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
+    ssl_prefer_server_ciphers on;
+    {% else %}
+    # As suggested by Mozilla : https://wiki.mozilla.org/Security/Server_Side_TLS and https://en.wikipedia.org/wiki/Curve25519
+    ssl_ecdh_curve secp521r1:secp384r1:prime256v1;
+    ssl_prefer_server_ciphers on;
+
+    # Ciphers with intermediate compatibility
+    # https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=nginx-1.6.2&openssl=1.0.1t&hsts=yes&profile=intermediate
+    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+    ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
+
+    # Uncomment the following directive after DH generation
+    # > openssl dhparam -out /etc/ssl/private/dh2048.pem -outform PEM -2 2048
+    #ssl_dhparam /etc/ssl/private/dh2048.pem;
+    {% endif %}
+
+    # Follows the Web Security Directives from the Mozilla Dev Lab and the Mozilla Obervatory + Partners
+    # https://wiki.mozilla.org/Security/Guidelines/Web_Security
+    # https://observatory.mozilla.org/
+    {% if domain_cert_ca != "Self-signed" %}
+    more_set_headers "Strict-Transport-Security : max-age=63072000; includeSubDomains; preload";
+    {% endif %}
+    more_set_headers "Content-Security-Policy : upgrade-insecure-requests";
+    more_set_headers "Content-Security-Policy-Report-Only : default-src https: data: 'unsafe-inline' 'unsafe-eval'";
+    more_set_headers "X-Content-Type-Options : nosniff";
+    more_set_headers "X-XSS-Protection : 1; mode=block";
+    more_set_headers "X-Download-Options : noopen";
+    more_set_headers "X-Permitted-Cross-Domain-Policies : none";
+    more_set_headers "X-Frame-Options : SAMEORIGIN";
+
+    {% if domain_cert_ca == "Let's Encrypt" %}
+    # OCSP settings
+    ssl_stapling on;
+    ssl_stapling_verify on;
+    ssl_trusted_certificate /etc/yunohost/certs/{{ domain }}/crt.pem;
+    resolver 127.0.0.1 127.0.1.1 valid=300s;
+    resolver_timeout 5s;
+    {% endif %}
+
+    # Disable gzip to protect against BREACH
+    # Read https://trac.nginx.org/nginx/ticket/1720 (text/html cannot be disabled!)
+    gzip off;
+
+#    access_by_lua_file /usr/share/ssowat/access.lua;
+
+    access_log /var/log/nginx/xmpp-upload.{{ domain }}-access.log;
+    error_log /var/log/nginx/xmpp-upload.{{ domain }}-error.log;
+}