1 { config, lib, pkgs, ... }:
7 cfg = config.services.squid;
10 squidConfig = pkgs.writeText "squid.conf"
11 (if cfg.configText != null then cfg.configText else
14 # Recommended minimum configuration (3.5):
17 # Example rule allowing access from your local networks.
18 # Adapt to list your (internal) IP networks from where browsing
20 acl localnet src 10.0.0.0/8 # RFC 1918 possible internal network
21 acl localnet src 172.16.0.0/12 # RFC 1918 possible internal network
22 acl localnet src 192.168.0.0/16 # RFC 1918 possible internal network
23 acl localnet src 169.254.0.0/16 # RFC 3927 link-local (directly plugged) machines
24 acl localnet src fc00::/7 # RFC 4193 local private network range
25 acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines
27 acl SSL_ports port 443 # https
28 acl Safe_ports port 80 # http
29 acl Safe_ports port 21 # ftp
30 acl Safe_ports port 443 # https
31 acl Safe_ports port 70 # gopher
32 acl Safe_ports port 210 # wais
33 acl Safe_ports port 1025-65535 # unregistered ports
34 acl Safe_ports port 280 # http-mgmt
35 acl Safe_ports port 488 # gss-http
36 acl Safe_ports port 591 # filemaker
37 acl Safe_ports port 777 # multiling http
38 acl CONNECT method CONNECT
41 # Recommended minimum Access Permission configuration:
43 # Deny requests to certain unsafe ports
44 http_access deny !Safe_ports
46 # Deny CONNECT to other than secure SSL ports
47 http_access deny CONNECT !SSL_ports
49 # Only allow cachemgr access from localhost
50 http_access allow localhost manager
51 http_access deny manager
53 # We strongly recommend the following be uncommented to protect innocent
54 # web applications running on the proxy server who think the only
55 # one who can access services on "localhost" is a local user
56 http_access deny to_localhost
58 # Application logs to syslog, access and store logs have specific files
60 access_log stdio:/var/log/squid/access.log
61 cache_store_log stdio:/var/log/squid/store.log
63 # Required by systemd service
64 pid_filename /run/squid.pid
66 # Run as user and group squid
67 cache_effective_user squid squid
70 # INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
74 # Example rule allowing access from your local networks.
75 # Adapt localnet in the ACL section to list your (internal) IP networks
76 # from where browsing should be allowed
77 http_access allow localnet
78 http_access allow localhost
80 # And finally deny all other access to this proxy
83 # Squid normally listens to port 3128
85 optionalString (cfg.proxyAddress != null) "${cfg.proxyAddress}:"
86 }${toString cfg.proxyPort}
88 # Leave coredumps in the first cache dir
89 coredump_dir /var/cache/squid
92 # Add any of your own refresh_pattern entries above these.
94 refresh_pattern ^ftp: 1440 20% 10080
95 refresh_pattern ^gopher: 1440 0% 1440
96 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
97 refresh_pattern . 0 20% 4320
111 description = lib.mdDoc "Whether to run squid web proxy.";
115 default = pkgs.squid;
116 defaultText = literalExpression "pkgs.squid";
117 type = types.package;
118 description = lib.mdDoc "Squid package to use.";
121 proxyAddress = mkOption {
122 type = types.nullOr types.str;
124 description = lib.mdDoc "IP address on which squid will listen.";
127 proxyPort = mkOption {
130 description = lib.mdDoc "TCP port on which squid will listen.";
133 extraConfig = mkOption {
136 description = lib.mdDoc ''
137 Squid configuration. Contents will be added
138 verbatim to the configuration file.
142 configText = mkOption {
143 type = types.nullOr types.lines;
145 description = lib.mdDoc ''
146 Verbatim contents of squid.conf. If null (default), use the
147 autogenerated file from NixOS instead.
155 config = mkIf cfg.enable {
157 users.users.squid = {
160 home = "/var/cache/squid";
164 users.groups.squid = {};
166 systemd.services.squid = {
167 description = "Squid caching proxy";
168 documentation = [ "man:squid(8)" ];
169 after = [ "network.target" "nss-lookup.target" ];
170 wantedBy = [ "multi-user.target"];
172 mkdir -p "/var/log/squid"
173 chown squid:squid "/var/log/squid"
174 ${cfg.package}/bin/squid --foreground -z -f ${squidConfig}
177 PIDFile="/run/squid.pid";
178 ExecStart = "${cfg.package}/bin/squid --foreground -YCs -f ${squidConfig}";
179 ExecReload="kill -HUP $MAINPID";