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|
{ lib, config, ... }: with lib;
let
cfg = config.services.websites;
in
{
options.services.websites = with types; {
certs = mkOption {
description = "Default websites configuration for certificates as accepted by acme";
};
webappDirs = mkOption {
description = ''
Defines a symlink between /run/current-system/webapps and a store
app directory to be used in http configuration. Permits to avoid
restarting httpd when only the folder name changes.
'';
type = types.attrsOf types.path;
default = {};
};
webappDirsName = mkOption {
type = str;
default = "webapps";
description = ''
Name of the webapp dir to create in /run/current-system
'';
};
env = mkOption {
default = {};
description = "Each type of website to enable will target a distinct httpd server";
type = attrsOf (submodule {
options = {
enable = mkEnableOption "Enable websites of this type";
adminAddr = mkOption {
type = str;
description = "Admin e-mail address of the instance";
};
httpdName = mkOption {
type = str;
description = "Name of the httpd instance to assign this type to";
};
ips = mkOption {
type = listOf string;
default = [];
description = "ips to listen to";
};
modules = mkOption {
type = listOf str;
default = [];
description = "Additional modules to load in Apache";
};
extraConfig = mkOption {
type = listOf lines;
default = [];
description = "Additional configuration to append to Apache";
};
nosslVhost = mkOption {
description = "A default nossl vhost for captive portals";
default = {};
type = submodule {
options = {
enable = mkEnableOption "Add default no-ssl vhost for this instance";
host = mkOption {
type = string;
description = "The hostname to use for this vhost";
};
root = mkOption {
type = path;
default = ./nosslVhost;
description = "The root folder to serve";
};
indexFile = mkOption {
type = string;
default = "index.html";
description = "The index file to show.";
};
};
};
};
fallbackVhost = mkOption {
description = "The fallback vhost that will be defined as first vhost in Apache";
type = submodule {
options = {
certName = mkOption { type = string; };
hosts = mkOption { type = listOf string; };
root = mkOption { type = nullOr path; };
extraConfig = mkOption { type = listOf lines; default = []; };
};
};
};
vhostConfs = mkOption {
default = {};
description = "List of vhosts to define for Apache";
type = attrsOf (submodule {
options = {
certName = mkOption { type = string; };
addToCerts = mkOption {
type = bool;
default = false;
description = "Use these to certificates. Is ignored (considered true) if certMainHost is not null";
};
certMainHost = mkOption {
type = nullOr string;
description = "Use that host as 'main host' for acme certs";
default = null;
};
hosts = mkOption { type = listOf string; };
root = mkOption { type = nullOr path; };
extraConfig = mkOption { type = listOf lines; default = []; };
};
});
};
watchPaths = mkOption {
type = listOf string;
default = [];
description = ''
Paths to watch that should trigger a reload of httpd
'';
};
};
});
};
# Readonly variables
webappDirsPaths = mkOption {
type = attrsOf path;
readOnly = true;
description = ''
Full paths of the webapp dir
'';
default = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
name "/run/current-system/${cfg.webappDirsName}/${name}"
) cfg.webappDirs;
};
};
config.services.httpd = let
redirectVhost = ips: { # Should go last, catchall http -> https redirect
listen = map (ip: { inherit ip; port = 80; }) ips;
hostName = "redirectSSL";
serverAliases = [ "*" ];
enableSSL = false;
logFormat = "combinedVhost";
documentRoot = "${config.security.acme.directory}/acme-challenge";
extraConfig = ''
RewriteEngine on
RewriteCond "%{REQUEST_URI}" "!^/\.well-known"
RewriteRule ^(.+) https://%{HTTP_HOST}$1 [R=301]
# To redirect in specific "VirtualHost *:80", do
# RedirectMatch 301 ^/((?!\.well-known.*$).*)$ https://host/$1
# rather than rewrite
'';
};
nosslVhost = ips: cfg: {
listen = map (ip: { inherit ip; port = 80; }) ips;
hostName = cfg.host;
enableSSL = false;
logFormat = "combinedVhost";
documentRoot = cfg.root;
extraConfig = ''
<Directory ${cfg.root}>
DirectoryIndex ${cfg.indexFile}
AllowOverride None
Require all granted
RewriteEngine on
RewriteRule ^/(.+) / [L]
</Directory>
'';
};
toVhost = ips: vhostConf: {
enableSSL = true;
sslServerCert = "${config.security.acme.directory}/${vhostConf.certName}/cert.pem";
sslServerKey = "${config.security.acme.directory}/${vhostConf.certName}/key.pem";
sslServerChain = "${config.security.acme.directory}/${vhostConf.certName}/chain.pem";
logFormat = "combinedVhost";
listen = map (ip: { inherit ip; port = 443; }) ips;
hostName = builtins.head vhostConf.hosts;
serverAliases = builtins.tail vhostConf.hosts or [];
documentRoot = vhostConf.root;
extraConfig = builtins.concatStringsSep "\n" vhostConf.extraConfig;
};
in attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
icfg.httpdName (mkIf icfg.enable {
enable = true;
listen = map (ip: { inherit ip; port = 443; }) icfg.ips;
stateDir = "/run/httpd_${name}";
logPerVirtualHost = true;
multiProcessingModule = "worker";
inherit (icfg) adminAddr;
logFormat = "combinedVhost";
extraModules = lists.unique icfg.modules;
extraConfig = builtins.concatStringsSep "\n" icfg.extraConfig;
virtualHosts = [ (toVhost icfg.ips icfg.fallbackVhost) ]
++ optionals (icfg.nosslVhost.enable) [ (nosslVhost icfg.ips icfg.nosslVhost) ]
++ (attrsets.mapAttrsToList (n: v: toVhost icfg.ips v) icfg.vhostConfs)
++ [ (redirectVhost icfg.ips) ];
})
) cfg.env;
config.services.filesWatcher = attrsets.mapAttrs' (name: icfg: attrsets.nameValuePair
"httpd${icfg.httpdName}" {
paths = icfg.watchPaths;
waitTime = 5;
}
) cfg.env;
config.security.acme.certs = let
typesToManage = attrsets.filterAttrs (k: v: v.enable) cfg.env;
flatVhosts = lists.flatten (attrsets.mapAttrsToList (k: v:
attrValues v.vhostConfs
) typesToManage);
groupedCerts = attrsets.filterAttrs
(_: group: builtins.any (v: v.addToCerts || !isNull v.certMainHost) group)
(lists.groupBy (v: v.certName) flatVhosts);
groupToDomain = group:
let
nonNull = builtins.filter (v: !isNull v.certMainHost) group;
domains = lists.unique (map (v: v.certMainHost) nonNull);
in
if builtins.length domains == 0
then null
else assert (builtins.length domains == 1); (elemAt domains 0);
extraDomains = group:
let
mainDomain = groupToDomain group;
in
lists.remove mainDomain (
lists.unique (
lists.flatten (map (c: optionals (c.addToCerts || !isNull c.certMainHost) c.hosts) group)
)
);
in attrsets.mapAttrs (k: g:
if (!isNull (groupToDomain g))
then cfg.certs // {
domain = groupToDomain g;
extraDomains = builtins.listToAttrs (
map (d: attrsets.nameValuePair d null) (extraDomains g));
}
else {
extraDomains = builtins.listToAttrs (
map (d: attrsets.nameValuePair d null) (extraDomains g));
}
) groupedCerts;
config.system.extraSystemBuilderCmds = lib.mkIf (builtins.length (builtins.attrValues cfg.webappDirs) > 0) ''
mkdir -p $out/${cfg.webappDirsName}
${builtins.concatStringsSep "\n"
(attrsets.mapAttrsToList
(name: path: "ln -s ${path} $out/${cfg.webappDirsName}/${name}") cfg.webappDirs)
}
'';
}
|
