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1 { lib, config, host, hostName, inputs, ... }:
2 let
3 inherit (lib) types;
4 inherit (config) networking;
5 inherit (config.services) nginx;
6 in
7 {
8 options = {
9 services.nginx = {
10 configs = lib.mkOption {
11 type = types.attrsOf types.lines;
12 default = { };
13 description = ''
14 Make some configs available to all virtual hosts.
15 Useful to workaround the reset of add_header:
16 https://blog.g3rt.nl/nginx-add_header-pitfall.html
17 '';
18 #apply = lib.mapAttrs (name: pkgs.writeText "${name}.conf");
19 };
20 };
21 };
22 config = {
23 systemd.tmpfiles.rules = [
24 "d '/dev/shm/nginx' '750' '${nginx.user}' '${nginx.group}' - -"
25 ];
26 systemd.services.nginx = {
27 requires = [ "systemd-tmpfiles-setup-dev.service" ];
28 serviceConfig = {
29 # FIXME: remove all the mkForce in LogsDirectory
30 # whenever upstream uses a list instead of a string.
31 LogsDirectory = lib.mkForce [ "nginx" ];
32 StateDirectory = [ "nginx" ];
33 StateDirectoryMode = "2771";
34 #BindPaths = ["/dev/shm/nginx:/var/cache/nginx"];
35 };
36 };
37 services.logrotate = {
38 enable = true;
39 settings.nginx = {
40 files = [
41 "/var/log/nginx/*.log"
42 "/var/log/nginx/*/*.log"
43 "/var/log/nginx/*/*/*.log"
44 "/var/log/nginx/*/*/*/*.log"
45 "/var/log/nginx/*/*/*/*/*.log"
46 "/var/log/nginx/*.json"
47 "/var/log/nginx/*/*.json"
48 "/var/log/nginx/*/*/*.json"
49 "/var/log/nginx/*/*/*/*.json"
50 "/var/log/nginx/*/*/*/*/*.json"
51 ];
52 frequency = "weekly";
53 rotate = 26;
54 compress = true;
55 delaycompress = true;
56 postrotate = ''
57 [ ! -f /var/run/nginx/nginx.pid ] || kill -USR1 `cat /var/run/nginx/nginx.pid`
58 '';
59 };
60 };
61 services.nginx = {
62 eventsConfig = ''
63 multi_accept on;
64 use epoll;
65 worker_connections 1024;
66 '';
67 clientMaxBodySize = "20m";
68 recommendedGzipSettings = true;
69 recommendedOptimisation = false;
70 recommendedProxySettings = true;
71 recommendedTlsSettings = true;
72 resolver = {
73 ipv6 = lib.mkDefault (networking.defaultGateway6 != null);
74 };
75 serverTokens = false;
76 # Only allow PFS-enabled ciphers with AES256
77 #sslCiphers = "AES256+EECDH:AES256+EDH:!aNULL";
78 #sslCiphers = "HIGH:!ADH:!MD5:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
79 #sslCiphers = "EECDH+aRSA+AESGCM:EDH+aRSA:EECDH+aRSA:+AES256:+AES128:+SHA1:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
80 sslDhparam = builtins.path { path = inputs.self + "/hosts/${hostName}/nginx/dh4096.pem"; };
81 sslProtocols = "TLSv1.3 TLSv1.2";
82 configs = rec {
83 http_add_headers = ''
84 # Enable CSP
85 #add_header Content-Security-Policy "script-src 'self'; object-src 'none'; base-uri 'none';" always;
86
87 # Enable XSS protection of the browser.
88 # May be unnecessary when CSP is configured properly (see above)
89 # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-XSS-Protection
90 #add_header X-XSS-Protection "1; mode=block";
91
92 # Minimize information leaked to other domains
93 add_header 'Referrer-Policy' 'origin-when-cross-origin';
94
95 # Restrict embedding as a frame
96 #add_header X-Frame-Options SAMEORIGIN;
97
98 # Prevent injection of code in other mime types (XSS Attacks)
99 add_header X-Content-Type-Options nosniff;
100 '';
101 https_add_headers = ''
102 ${http_add_headers}
103 # Add HSTS header with preloading to HTTPS requests.
104 # Adding this header to HTTP requests is discouraged,
105 # as doing so makes the connection vulnerable to SSL stripping attacks
106 # DOC: https://blog.qualys.com/securitylabs/2016/03/28/the-importance-of-a-proper-http-strict-transport-security-implementation-on-your-web-server
107 add_header Strict-Transport-Security $hsts_header;
108 '';
109 };
110 commonHttpConfig = ''
111 log_format main '$remote_addr - $remote_user [$time_local] "$request" '
112 '$status $body_bytes_sent "$http_referer" '
113 '"$http_user_agent" "$http_x_forwarded_for"';
114 log_format json escape=json '{'
115 '"time_local":"$time_local",'
116 '"host":"$host",'
117 '"request":"$request",'
118 '"status":"$status",'
119 '"http_referrer":"$http_referer",'
120 '"remote_addr":"$remote_addr",'
121 '"remote_user":"$remote_user",'
122 '"msec":"$msec",'
123 '"body_bytes_sent":"$body_bytes_sent",'
124 '"bytes_sent":"$bytes_sent",'
125 '"http_user_agent":"$http_user_agent",'
126 '"request_length":"$request_length",'
127 '"request_method":"$request_method",'
128 '"request_time":"$request_time",'
129 '"request_uri":"$request_uri",'
130 '"server_protocol":"$server_protocol",'
131 '"ssl_protocol":"$ssl_protocol",'
132 '"upstream_addr":"$upstream_addr",'
133 '"upstream_connect_time":"$upstream_connect_time",'
134 '"upstream_response_time":"$upstream_response_time"'
135 '}';
136 charset UTF-8;
137 types {
138 text/html html5;
139 text/plain dump;
140 }
141 '' +
142 lib.concatStringsSep "\n" (lib.attrValues {
143 default = ''
144 #default_type application/octet-stream;
145 root /var/lib/nginx;
146 '';
147 security = ''
148 #error_page 403 = 404;
149
150 ${nginx.configs.http_add_headers}
151
152 # This might create errors
153 #proxy_cookie_path / "/; secure; HttpOnly; SameSite=strict";
154 '';
155 log = ''
156 access_log /var/log/nginx/access.json json;
157 error_log /var/log/nginx/error.log warn;
158 open_log_file_cache max=1000 inactive=20s min_uses=2 valid=1m;
159 '';
160 proxy = ''
161 proxy_cache_use_stale updating;
162 proxy_temp_path /var/cache/nginx/proxy_temp 1 2;
163 '';
164 fastcgi = ''
165 # DOC: http://wiki.nginx.org/HttpFastcgiModule
166 fastcgi_buffer_size 128k;
167 fastcgi_buffers 256 4k;
168 fastcgi_busy_buffers_size 256k;
169 fastcgi_cache_key "$request_method $scheme://$http_host$request_uri";
170 fastcgi_connect_timeout 60;
171 fastcgi_ignore_client_abort off;
172 fastcgi_intercept_errors on;
173 fastcgi_max_temp_file_size 2M;
174 #fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
175 fastcgi_param SCRIPT_FILENAME $request_filename;
176 fastcgi_temp_path /var/cache/nginx/fastcgi_temp 1 2;
177 '';
178 connection = ''
179 sendfile on;
180 # If the client stops reading data,
181 # free up the stale client connection after this much time.
182 send_timeout 60;
183 # Causes nginx to attempt to send its HTTP response head
184 # in one packet, instead of using partial frames.
185 # This is useful for prepending headers before calling sendfile,
186 # or for throughput optimization.
187 tcp_nopush on;
188 # Don't buffer data-sends (disable Nagle algorithm).
189 # Good for sending frequent small bursts of data in real time.
190 tcp_nodelay on;
191 keepalive_timeout 20;
192 reset_timedout_connection on;
193 server_names_hash_bucket_size 128;
194 '';
195 map = ''
196 map $time_iso8601 $date {
197 default 'date-not-found';
198 '~^(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})' $year-$month-$day;
199 }
200
201 map $scheme $hsts_header {
202 https "max-age=31536000; includeSubdomains; preload";
203 }
204
205 # User agents that are to be blocked.
206 #map $http_user_agent $bad_bot {
207 # default 0;
208 # libwww-perl 1;
209 # ~(?i)(httrack|htmlparser|libwww) 1;
210 #}
211 # Referrers that are to be blocked.
212 #map $http_referer $bad_referer {
213 # default 0;
214 # ~(?i)(babes|casino|click|diamond|forsale|girl|jewelry|love|nudit|organic|poker|porn|poweroversoftware|replica|sex|teen|webcam|zippo) 1;
215 #}
216 #geo $not_local {
217 # default 1;
218 # 127.0.0.1 0;
219 #}
220 '';
221 cache = ''
222 client_body_buffer_size 4K;
223 # getconf PAGESIZE
224 # 4096
225 client_body_temp_path /var/cache/nginx/client_body_temp 1 2;
226 client_body_timeout 60;
227 client_header_buffer_size 1k;
228 client_header_timeout 60;
229 large_client_header_buffers 4 8k;
230
231 open_file_cache max=200000 inactive=20s;
232 open_file_cache_errors on;
233 open_file_cache_min_uses 2;
234 open_file_cache_valid 30s;
235 '';
236 });
237 appendConfig = ''
238 worker_processes ${toString host.CPUs};
239 '';
240 };
241 };
242 }