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1 { inputs, pkgs, lib, config, ... }:
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 serviceConfig = {
28 # FIXME: remove all the mkForce in LogsDirectory
29 # whenever upstream uses a list instead of a string.
30 LogsDirectory = lib.mkForce ["nginx"];
31 StateDirectory = ["nginx"];
32 StateDirectoryMode = "2770";
33 BindPaths = ["/dev/shm/nginx:/var/cache/nginx"];
34 };
35 };
36 services.nginx = {
37 eventsConfig = ''
38 multi_accept on;
39 use epoll;
40 worker_connections 1024;
41 '';
42 clientMaxBodySize = "20m";
43 recommendedGzipSettings = true;
44 recommendedOptimisation = false;
45 recommendedProxySettings = true;
46 recommendedTlsSettings = true;
47 resolver = {
48 ipv6 = lib.mkDefault (networking.defaultGateway6 != null);
49 };
50 serverTokens = false;
51 # Only allow PFS-enabled ciphers with AES256
52 #sslCiphers = "AES256+EECDH:AES256+EDH:!aNULL";
53 #sslCiphers = "HIGH:!ADH:!MD5:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
54 #sslCiphers = "EECDH+aRSA+AESGCM:EDH+aRSA:EECDH+aRSA:+AES256:+AES128:+SHA1:!CAMELLIA:!SEED:!3DES:!DES:!RC4:!eNULL";
55 sslDhparam = inputs.secrets + "/openssl/dh.pem";
56 sslProtocols = "TLSv1.3 TLSv1.2";
57 configs = rec {
58 http_add_headers = ''
59 # Enable CSP
60 #add_header Content-Security-Policy "script-src 'self'; object-src 'none'; base-uri 'none';" always;
61
62 # Enable XSS protection of the browser.
63 # May be unnecessary when CSP is configured properly (see above)
64 add_header X-XSS-Protection "1; mode=block";
65
66 # Minimize information leaked to other domains
67 add_header 'Referrer-Policy' 'origin-when-cross-origin';
68
69 # Restrict embedding as a frame
70 #add_header X-Frame-Options SAMEORIGIN;
71
72 # Prevent injection of code in other mime types (XSS Attacks)
73 add_header X-Content-Type-Options nosniff;
74 '';
75 https_add_headers = ''
76 ${http_add_headers}
77 # Add HSTS header with preloading to HTTPS requests.
78 # Adding this header to HTTP requests is discouraged,
79 # as doing so makes the connection vulnerable to SSL stripping attacks
80 # DOC: https://blog.qualys.com/securitylabs/2016/03/28/the-importance-of-a-proper-http-strict-transport-security-implementation-on-your-web-server
81 add_header Strict-Transport-Security $hsts_header;
82 '';
83 };
84 commonHttpConfig = ''
85 log_format main '$remote_addr - $remote_user [$time_local] "$request" '
86 '$status $body_bytes_sent "$http_referer" '
87 '"$http_user_agent" "$http_x_forwarded_for"';
88
89 log_format json escape=json
90 '{'
91 '"time_local":"$time_local",'
92 '"remote_addr":"$remote_addr",'
93 '"status": "$status",'
94 '"request":"$request",'
95 '"body_bytes_sent":"$body_bytes_sent",'
96 '"http_referrer":"$http_referer",'
97 '"http_user_agent":"$http_user_agent",'
98 '"remote_user":"$remote_user",'
99 '"request_time":"$request_time"'
100 '}';
101 charset UTF-8;
102 types {
103 text/html html5;
104 text/plain md;
105 text/plain dump;
106 }
107 '' +
108 lib.concatStringsSep "\n" (lib.attrValues {
109 default = ''
110 default_type application/octet-stream;
111 root /var/lib/nginx;
112 '';
113 security = ''
114 #error_page 403 = 404;
115
116 ${nginx.configs.http_add_headers}
117
118 # This might create errors
119 #proxy_cookie_path / "/; secure; HttpOnly; SameSite=strict";
120 '';
121 log = ''
122 access_log /var/log/nginx/access.log main buffer=32k;
123 error_log /var/log/nginx/error.log warn;
124 open_log_file_cache max=1000 inactive=20s min_uses=2 valid=1m;
125 '';
126 proxy = ''
127 proxy_cache_use_stale updating;
128 proxy_temp_path /var/cache/nginx/proxy_temp 1 2;
129 '';
130 fastcgi = ''
131 # DOC: http://wiki.nginx.org/HttpFastcgiModule
132 fastcgi_buffer_size 128k;
133 fastcgi_buffers 256 4k;
134 fastcgi_busy_buffers_size 256k;
135 fastcgi_cache_key "$request_method $scheme://$http_host$request_uri";
136 fastcgi_connect_timeout 60;
137 fastcgi_ignore_client_abort off;
138 fastcgi_intercept_errors on;
139 fastcgi_max_temp_file_size 2M;
140 #fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
141 fastcgi_param SCRIPT_FILENAME $request_filename;
142 fastcgi_temp_path /var/cache/nginx/fastcgi_temp 1 2;
143 '';
144 connection = ''
145 sendfile on;
146 # If the client stops reading data,
147 # free up the stale client connection after this much time.
148 send_timeout 60;
149 # Causes nginx to attempt to send its HTTP response head
150 # in one packet, instead of using partial frames.
151 # This is useful for prepending headers before calling sendfile,
152 # or for throughput optimization.
153 tcp_nopush on;
154 # Don't buffer data-sends (disable Nagle algorithm).
155 # Good for sending frequent small bursts of data in real time.
156 tcp_nodelay on;
157 keepalive_timeout 20;
158 reset_timedout_connection on;
159 types_hash_max_size 4096;
160 server_names_hash_bucket_size 128;
161 '';
162 map = ''
163 map $time_iso8601 $date {
164 default 'date-not-found';
165 '~^(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})' $year-$month-$day;
166 }
167
168 map $scheme $hsts_header {
169 https "max-age=31536000; includeSubdomains; preload";
170 }
171
172 # User agents that are to be blocked.
173 #map $http_user_agent $bad_bot {
174 # default 0;
175 # libwww-perl 1;
176 # ~(?i)(httrack|htmlparser|libwww) 1;
177 #}
178 # Referrers that are to be blocked.
179 #map $http_referer $bad_referer {
180 # default 0;
181 # ~(?i)(babes|casino|click|diamond|forsale|girl|jewelry|love|nudit|organic|poker|porn|poweroversoftware|replica|sex|teen|webcam|zippo) 1;
182 #}
183 #geo $not_local {
184 # default 1;
185 # 127.0.0.1 0;
186 #}
187 '';
188 cache = ''
189 client_body_buffer_size 4K;
190 # getconf PAGESIZE
191 # 4096
192 client_body_temp_path /var/cache/nginx/client_body_temp 1 2;
193 client_body_timeout 60;
194 client_header_buffer_size 1k;
195 client_header_timeout 60;
196 large_client_header_buffers 4 8k;
197
198 open_file_cache max=200000 inactive=20s;
199 open_file_cache_errors on;
200 open_file_cache_min_uses 2;
201 open_file_cache_valid 30s;
202 '';
203 });
204 appendConfig = ''
205 worker_processes ${toString config.nix.maxJobs};
206 '';
207 };
208 };
209 }