# Based on: https://github.com/nextcloud/documentation/blob/master/admin_manual/installation/nginx-subdir.conf.sample

# Redirect webfinger and nodeinfo requests to Nextcloud endpoint
location /.well-known/webfinger { return 301 /nextcloud/index.php$request_uri; }
location /.well-known/nodeinfo  { return 301 /nextcloud/index.php$request_uri; }

location ^~ /nextcloud {

	# Omit Nginx version on error response
	server_tokens off;

	# Set max upload size
	client_max_body_size 1048576M;
	fastcgi_buffers 64 4K;

	# Enable gzip but do not remove ETag headers
	gzip on;
	gzip_vary on;
	gzip_comp_level 4;
	gzip_min_length 256;
	gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
	gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;

	# HTTP response headers borrowed from Nextcloud `.htaccess`
	#add_header Strict-Transport-Security "max-age=15768000; includeSubDomains" always;
	add_header Referrer-Policy "no-referrer" always;
	add_header X-Content-Type-Options "nosniff" always;
	add_header X-Download-Options "noopen" always;
	add_header X-Frame-Options "SAMEORIGIN" always;
	add_header X-Permitted-Cross-Domain-Policies "none" always;
	add_header X-Robots-Tag "noindex, nofollow" always;
	add_header X-XSS-Protection "1; mode=block" always;

	# Remove X-Powered-By, which is an information leak
	fastcgi_hide_header X-Powered-By;

	# Specify how to handle directories -- specifying `/nextcloud/index.php$request_uri`
	# here as the fallback means that Nginx always exhibits the desired behaviour
	# when a client requests a path that corresponds to a directory that exists
	# on the server. In particular, if that directory contains an index.php file,
	# that file is correctly served; if it doesn't, then the request is passed to
	# the front-end controller. This consistent behaviour means that we don't need
	# to specify custom rules for certain paths (e.g. images and other assets,
	# `/updater`, `/ocm-provider`, `/ocs-provider`), and thus
	# `try_files $uri $uri/ /nextcloud/index.php$request_uri`
	# always provides the desired behaviour.
	index index.php index.html /nextcloud/index.php$request_uri;

	# Rule borrowed from `.htaccess` to handle Microsoft DAV clients
	location = /nextcloud {
		if ( $http_user_agent ~ ^DavClnt ) {
			return 302 /nextcloud/remote.php/webdav/$is_args$args;
		}
	}

	# Rules borrowed from `.htaccess` to hide certain paths from clients
	location ~ ^/nextcloud/(?:build|tests|config|lib|3rdparty|templates|data)(?:$|/) { return 404; }
	location ~ ^/nextcloud/(?:\.|autotest|occ|issue|indie|db_|console) { return 404; }

	# Ensure this block, which passes PHP files to the PHP process, is above the blocks
	# which handle static assets (as seen below). If this block is not declared first,
	# then Nginx will encounter an infinite rewriting loop when it prepends
	# `/nextcloud/index.php` to the URI, resulting in a HTTP 500 error response.
	location ~ \.php(?:$|/) {
		fastcgi_split_path_info ^(.+?\.php)(/.*|)$;
		set $path_info $fastcgi_path_info;
		try_files $fastcgi_script_name =404;
		include fastcgi_params;
		fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
		fastcgi_param PATH_INFO $fastcgi_path_info;
		fastcgi_param HTTPS $https;
		fastcgi_param modHeadersAvailable true; # Avoid sending the security headers twice
		fastcgi_param front_controller_active true; # Enable pretty URLs without /index.php/
		fastcgi_pass php;
		fastcgi_intercept_errors on;
		fastcgi_request_buffering off;
		fastcgi_max_temp_file_size 0; # Allow downloads > 1 GiB: https://github.com/nextcloud/documentation/pull/7979
	}

	include mime.types;
	types {
		text/javascript mjs;
		application/wasm wasm;
	}

	location ~ \.(?:css|js|mjs|svg|gif|png|jpg|ico|wasm|tflite|map)$ {
		try_files $uri /nextcloud/index.php$request_uri;
		# HTTP response headers borrowed from Nextcloud `.htaccess`
		add_header Cache-Control "public, max-age=15778463$asset_immutable";
		#add_header Strict-Transport-Security "max-age=15768000; includeSubDomains" always;
		add_header Referrer-Policy "no-referrer" always;
		add_header X-Content-Type-Options "nosniff" always;
		add_header X-Download-Options "noopen" always;
		add_header X-Frame-Options "SAMEORIGIN" always;
		add_header X-Permitted-Cross-Domain-Policies "none" always;
		add_header X-Robots-Tag "noindex, nofollow" always;
		add_header X-XSS-Protection "1; mode=block" always;
		access_log off; # Optional: Don't log access to assets
	}

	location ~ \.woff2?$ {
		try_files $uri /nextcloud/index.php$request_uri;
		expires 7d; # Cache-Control policy borrowed from `.htaccess`
		access_log off; # Optional: Don't log access to assets
	}

	# Rule borrowed from `.htaccess`
	location /nextcloud/remote {
		return 301 /nextcloud/remote.php$request_uri;
	}

	location /nextcloud {
		try_files $uri $uri/ /nextcloud/index.php$request_uri;
	}
}