user  www-data;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
	worker_connections  1024;
}

http {

	upstream backend {
		server nextcloud-server:9000;
	}

	# Set the `immutable` cache control options only for assets with a cache busting `v` argument
	map $arg_v $asset_immutable {
		"" "";
		default ", immutable";
	}
	include       /etc/nginx/mime.types;
	default_type  application/octet-stream;

	log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
		'$status $body_bytes_sent "$http_referer" '
		'"$http_user_agent" "$http_x_forwarded_for"';

	access_log  /var/log/nginx/access.log  main;

	sendfile        on;
	#tcp_nopush     on;

	keepalive_timeout  65;

	map $http_host $this_host {
		"" $host;
		default $http_host;
	}

	map $http_x_forwarded_proto $the_scheme {
		default $http_x_forwarded_proto;
		"" $scheme;
	}

	map $http_x_forwarded_host $the_host {
		default $http_x_forwarded_host;
		"" $this_host;
	}


	server {
		listen 80;
		# Prevent nginx HTTP Server Detection
		server_tokens off;

		# HSTS settings
		# WARNING: Only add the preload option once you read about
		# the consequences in https://hstspreload.org/. This option
		# will add the domain to a hardcoded list that is shipped
		# in all major browsers and getting removed from this list
		# could take several months.
		#add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload" always;

		# set max upload size and increase upload timeout:
		client_max_body_size 10G;
		client_body_timeout 300s;
		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 text/javascript application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/wasm 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;

		# Pagespeed is not supported by Nextcloud, so if your server is built
		# with the `ngx_pagespeed` module, uncomment this line to disable it.
		#pagespeed off;

		# The settings allows you to optimize the HTTP2 bandwidth.
		# See https://blog.cloudflare.com/delivering-http-2-upload-speed-improvements/
		# for tuning hints
		client_body_buffer_size 512k;

		# HTTP response headers borrowed from Nextcloud `.htaccess`
		add_header Referrer-Policy                   "no-referrer"       always;
		add_header X-Content-Type-Options            "nosniff"           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;

		# Set .mjs and .wasm MIME types
		# Either include it in the default mime.types list
		# and include that list explicitly or add the file extension
		# only for Nextcloud like below:
		include mime.types;
		types {
			text/javascript js mjs;
			application/wasm wasm;
		}
        	root /var/www/html;

		# Specify how to handle directories -- specifying `/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`, `/ocs-provider`), and thus
		# `try_files $uri $uri/ /index.php$request_uri`
		# always provides the desired behaviour.
		index index.php index.html /index.php$request_uri;

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

		location = /robots.txt {
			allow all;
			log_not_found off;
			access_log off;
		}

		# Make a regex exception for `/.well-known` so that clients can still
		# access it despite the existence of the regex rule
		# `location ~ /(\.|autotest|...)` which would otherwise handle requests
		# for `/.well-known`.
		location ^~ /.well-known {
			# The rules in this block are an adaptation of the rules
			# in `.htaccess` that concern `/.well-known`.

			location = /.well-known/carddav { return 301 /remote.php/dav/; }
			location = /.well-known/caldav  { return 301 /remote.php/dav/; }

			location /.well-known/acme-challenge    { try_files $uri $uri/ =404; }
			location /.well-known/pki-validation    { try_files $uri $uri/ =404; }

			# Let Nextcloud's API for `/.well-known` URIs handle all other
			# requests by passing them to the front-end controller.
			return 301 /index.php$request_uri;
		}

		# Rules borrowed from `.htaccess` to hide certain paths from clients
		location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)(?:$|/)  { return 404; }
		location ~ ^/(?:\.|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 `/index.php`
		# to the URI, resulting in a HTTP 500 error response.
		location ~ \.php(?:$|/) {
			# Required for legacy support
			rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|ocs-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;

			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 $path_info;
			fastcgi_param HTTPS on;

			fastcgi_param modHeadersAvailable true;         # Avoid sending the security headers twice
			fastcgi_param front_controller_active true;     # Enable pretty urls
			fastcgi_pass backend;

			fastcgi_intercept_errors on;
			fastcgi_request_buffering off;

			fastcgi_max_temp_file_size 0;
		}

		# Serve static files
		location ~ \.(?:css|js|mjs|svg|gif|png|jpg|ico|wasm|tflite|map|ogg|flac)$ {
			try_files $uri /index.php$request_uri;
			# HTTP response headers borrowed from Nextcloud `.htaccess`
			add_header Cache-Control                     "public, max-age=15778463$asset_immutable";
			add_header Referrer-Policy                   "no-referrer"       always;
			add_header X-Content-Type-Options            "nosniff"           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 $uri /index.php$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 /remote {
			return 301 /remote.php$request_uri;
		}

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


}