nixos/cryptpad: init

This is a full rewrite independent of the previously removed cryptpad
module, managing cryptpad's config in RFC0042 along with a shiny test.

Upstream cryptpad provides two nginx configs, with many optimizations
and complex settings; this uses the easier variant for now but
improvements (e.g. serving blocks and js files directly through nginx)
should be possible with a bit of work and care about http headers.

the /checkup page of cryptpad passes all tests except HSTS, we don't
seem to have any nginx config with HSTS enabled in nixpkgs so leave this
as is for now.

Co-authored-by: Pol Dellaiera <pol.dellaiera@protonmail.com>
Co-authored-by: Michael Smith <shmitty@protonmail.com>

Changed files
+287 -1
nixos
doc
manual
release-notes
modules
tests
+2
nixos/doc/manual/release-notes/rl-2411.section.md
···
- [Localsend](https://localsend.org/), an open source cross-platform alternative to AirDrop. Available as [programs.localsend](#opt-programs.localsend.enable).
+
- [cryptpad](https://cryptpad.org/), a privacy-oriented collaborative platform (docs/drive/etc), has been added back. Available as [services.cryptpad](#opt-services.cryptpad.enable).
+
- [realm](https://github.com/zhboner/realm), a simple, high performance relay server written in rust. Available as [services.realm.enable](#opt-services.realm.enable).
- [Playerctld](https://github.com/altdesktop/playerctl), a daemon to track media player activity. Available as [services.playerctld](option.html#opt-services.playerctld).
+1
nixos/modules/module-list.nix
···
./services/web-apps/convos.nix
./services/web-apps/crabfit.nix
./services/web-apps/davis.nix
+
./services/web-apps/cryptpad.nix
./services/web-apps/dex.nix
./services/web-apps/discourse.nix
./services/web-apps/documize.nix
-1
nixos/modules/rename.nix
···
(mkRemovedOptionModule [ "services" "virtuoso" ] "The corresponding package was removed from nixpkgs.")
(mkRemovedOptionModule [ "services" "openfire" ] "The corresponding package was removed from nixpkgs.")
(mkRemovedOptionModule [ "services" "riak" ] "The corresponding package was removed from nixpkgs.")
-
(mkRemovedOptionModule [ "services" "cryptpad" ] "The corresponding package was removed from nixpkgs.")
(mkRemovedOptionModule [ "services" "rtsp-simple-server" ] "Package has been completely rebranded by upstream as mediamtx, and thus the service and the package were renamed in NixOS as well.")
(mkRemovedOptionModule [ "services" "prayer" ] "The corresponding package was removed from nixpkgs.")
(mkRemovedOptionModule [ "services" "restya-board" ] "The corresponding package was removed from nixpkgs.")
+215
nixos/modules/services/web-apps/cryptpad.nix
···
+
{
+
config,
+
lib,
+
pkgs,
+
...
+
}:
+
+
let
+
cfg = config.services.cryptpad;
+
+
inherit (lib)
+
mkIf
+
mkMerge
+
mkOption
+
strings
+
types
+
;
+
+
# The Cryptpad configuration file isn't JSON, but a JavaScript source file that assigns a JSON value
+
# to a variable.
+
cryptpadConfigFile = builtins.toFile "cryptpad_config.js" ''
+
module.exports = ${builtins.toJSON cfg.settings}
+
'';
+
+
# Derive domain names for Nginx configuration from Cryptpad configuration
+
mainDomain = strings.removePrefix "https://" cfg.settings.httpUnsafeOrigin;
+
sandboxDomain =
+
if cfg.settings.httpSafeOrigin == null then
+
mainDomain
+
else
+
strings.removePrefix "https://" cfg.settings.httpSafeOrigin;
+
+
in
+
{
+
options.services.cryptpad = {
+
enable = lib.mkEnableOption "cryptpad";
+
+
package = lib.mkPackageOption pkgs "cryptpad" { };
+
+
configureNginx = mkOption {
+
description = ''
+
Configure Nginx as a reverse proxy for Cryptpad.
+
Note that this makes some assumptions on your setup, and sets settings that will
+
affect other virtualHosts running on your Nginx instance, if any.
+
Alternatively you can configure a reverse-proxy of your choice.
+
'';
+
type = types.bool;
+
default = false;
+
};
+
+
settings = mkOption {
+
description = ''
+
Cryptpad configuration settings.
+
See https://github.com/cryptpad/cryptpad/blob/main/config/config.example.js for a more extensive
+
reference documentation.
+
Test your deployed instance through `https://<domain>/checkup/`.
+
'';
+
type = types.submodule {
+
freeformType = (pkgs.formats.json { }).type;
+
options = {
+
httpUnsafeOrigin = mkOption {
+
type = types.str;
+
example = "https://cryptpad.example.com";
+
default = "";
+
description = "This is the URL that users will enter to load your instance";
+
};
+
httpSafeOrigin = mkOption {
+
type = types.nullOr types.str;
+
example = "https://cryptpad-ui.example.com. Apparently optional but recommended.";
+
description = "Cryptpad sandbox URL";
+
};
+
httpAddress = mkOption {
+
type = types.str;
+
default = "127.0.0.1";
+
description = "Address on which the Node.js server should listen";
+
};
+
httpPort = mkOption {
+
type = types.int;
+
default = 3000;
+
description = "Port on which the Node.js server should listen";
+
};
+
websocketPort = mkOption {
+
type = types.int;
+
default = 3003;
+
description = "Port for the websocket that needs to be separate";
+
};
+
maxWorkers = mkOption {
+
type = types.nullOr types.int;
+
default = null;
+
description = "Number of child processes, defaults to number of cores available";
+
};
+
adminKeys = mkOption {
+
type = types.listOf types.str;
+
default = [ ];
+
description = "List of public signing keys of users that can access the admin panel";
+
example = [ "[cryptpad-user1@my.awesome.website/YZgXQxKR0Rcb6r6CmxHPdAGLVludrAF2lEnkbx1vVOo=]" ];
+
};
+
logToStdout = mkOption {
+
type = types.bool;
+
default = true;
+
description = "Controls whether log output should go to stdout of the systemd service";
+
};
+
logLevel = mkOption {
+
type = types.str;
+
default = "info";
+
description = "Controls log level";
+
};
+
blockDailyCheck = mkOption {
+
type = types.bool;
+
default = true;
+
description = ''
+
Disable telemetry. This setting is only effective if the 'Disable server telemetry'
+
setting in the admin menu has been untouched, and will be ignored by cryptpad once
+
that option is set either way.
+
Note that due to the service confinement, just enabling the option in the admin
+
menu will not be able to resolve DNS and fail; this setting must be set as well.
+
'';
+
};
+
installMethod = mkOption {
+
type = types.str;
+
default = "nixos";
+
description = ''
+
Install method is listed in telemetry if you agree to it through the consentToContact
+
setting in the admin panel.
+
'';
+
};
+
};
+
};
+
};
+
};
+
+
config = mkIf cfg.enable (mkMerge [
+
{
+
systemd.services.cryptpad = {
+
description = "Cryptpad service";
+
wantedBy = [ "multi-user.target" ];
+
after = [ "networking.target" ];
+
serviceConfig = {
+
BindReadOnlyPaths = [
+
cryptpadConfigFile
+
# apparently needs proc for workers management
+
"/proc"
+
"/dev/urandom"
+
] ++ (if ! cfg.settings.blockDailyCheck then [
+
# allow DNS & TLS if telemetry is explicitly enabled
+
"-/etc/resolv.conf"
+
"-/run/systemd"
+
"/etc/hosts"
+
"/etc/ssl/certs/ca-certificates.crt"
+
] else []);
+
DynamicUser = true;
+
Environment = [
+
"CRYPTPAD_CONFIG=${cryptpadConfigFile}"
+
"HOME=%S/cryptpad"
+
];
+
ExecStart = lib.getExe cfg.package;
+
PrivateTmp = true;
+
Restart = "always";
+
StateDirectory = "cryptpad";
+
WorkingDirectory = "%S/cryptpad";
+
};
+
confinement = {
+
enable = true;
+
binSh = null;
+
mode = "chroot-only";
+
};
+
};
+
}
+
+
(mkIf cfg.configureNginx {
+
assertions = [
+
{
+
assertion = cfg.settings.httpUnsafeOrigin != "";
+
message = "services.cryptpad.settings.httpUnsafeOrigin is required";
+
}
+
{
+
assertion = strings.hasPrefix "https://" cfg.settings.httpUnsafeOrigin;
+
message = "services.cryptpad.settings.httpUnsafeOrigin must start with https://";
+
}
+
{
+
assertion =
+
cfg.settings.httpSafeOrigin == null || strings.hasPrefix "https://" cfg.settings.httpSafeOrigin;
+
message = "services.cryptpad.settings.httpSafeOrigin must start with https:// (or be unset)";
+
}
+
];
+
services.nginx = {
+
enable = true;
+
recommendedTlsSettings = true;
+
recommendedProxySettings = true;
+
recommendedOptimisation = true;
+
recommendedGzipSettings = true;
+
+
virtualHosts = mkMerge [
+
{
+
"${mainDomain}" = {
+
serverAliases = lib.optionals (cfg.settings.httpSafeOrigin != null) [ sandboxDomain ];
+
enableACME = lib.mkDefault true;
+
forceSSL = true;
+
locations."/" = {
+
proxyPass = "http://${cfg.settings.httpAddress}:${builtins.toString cfg.settings.httpPort}";
+
extraConfig = ''
+
client_max_body_size 150m;
+
'';
+
};
+
locations."/cryptpad_websocket" = {
+
proxyPass = "http://${cfg.settings.httpAddress}:${builtins.toString cfg.settings.websocketPort}";
+
proxyWebsockets = true;
+
};
+
};
+
}
+
];
+
};
+
})
+
]);
+
}
+1
nixos/tests/all-tests.nix
···
couchdb = handleTest ./couchdb.nix {};
crabfit = handleTest ./crabfit.nix {};
cri-o = handleTestOn ["aarch64-linux" "x86_64-linux"] ./cri-o.nix {};
+
cryptpad = runTest ./cryptpad.nix;
cups-pdf = handleTest ./cups-pdf.nix {};
curl-impersonate = handleTest ./curl-impersonate.nix {};
custom-ca = handleTest ./custom-ca.nix {};
+68
nixos/tests/cryptpad.nix
···
+
{ pkgs, ... }:
+
let
+
certs = pkgs.runCommand "cryptpadSelfSignedCerts" { buildInputs = [ pkgs.openssl ]; } ''
+
mkdir -p $out
+
cd $out
+
openssl req -x509 -newkey rsa:4096 \
+
-keyout key.pem -out cert.pem -nodes -days 3650 \
+
-subj '/CN=cryptpad.localhost' \
+
-addext 'subjectAltName = DNS.1:cryptpad.localhost, DNS.2:cryptpad-sandbox.localhost'
+
'';
+
# data sniffed from cryptpad's /checkup network trace, seems to be re-usable
+
test_write_data = pkgs.writeText "cryptpadTestData" ''
+
{"command":"WRITE_BLOCK","content":{"publicKey":"O2onvM62pC1io6jQKm8Nc2UyFXcd4kOmOsBIoYtZ2ik=","signature":"aXcM9SMO59lwA7q7HbYB+AnzymmxSyy/KhkG/cXIBVzl8v+kkPWXmFuWhcuKfRF8yt3Zc3ktIsHoFyuyDSAwAA==","ciphertext":"AFwCIfBHKdFzDKjMg4cu66qlJLpP+6Yxogbl3o9neiQou5P8h8yJB8qgnQ=="},"publicKey":"O2onvM62pC1io6jQKm8Nc2UyFXcd4kOmOsBIoYtZ2ik=","nonce":"bitSbJMNSzOsg98nEzN80a231PCkBQeH"}
+
'';
+
in
+
{
+
name = "cryptpad";
+
meta = with pkgs.lib.maintainers; {
+
maintainers = [ martinetd ];
+
};
+
+
nodes.machine = {
+
services.cryptpad = {
+
enable = true;
+
configureNginx = true;
+
settings = {
+
httpUnsafeOrigin = "https://cryptpad.localhost";
+
httpSafeOrigin = "https://cryptpad-sandbox.localhost";
+
};
+
};
+
services.nginx = {
+
virtualHosts."cryptpad.localhost" = {
+
enableACME = false;
+
sslCertificate = "${certs}/cert.pem";
+
sslCertificateKey = "${certs}/key.pem";
+
};
+
};
+
security = {
+
pki.certificateFiles = [ "${certs}/cert.pem" ];
+
};
+
};
+
+
testScript = ''
+
machine.wait_for_unit("cryptpad.service")
+
machine.wait_for_unit("nginx.service")
+
machine.wait_for_open_port(3000)
+
+
# test home page
+
machine.succeed("curl --fail https://cryptpad.localhost -o /tmp/cryptpad_home.html")
+
machine.succeed("grep -F 'CryptPad: Collaboration suite' /tmp/cryptpad_home.html")
+
+
# test scripts/build.js actually generated customize content from config
+
machine.succeed("grep -F 'meta property=\"og:url\" content=\"https://cryptpad.localhost/index.html' /tmp/cryptpad_home.html")
+
+
# make sure child pages are accessible (e.g. check nginx try_files paths)
+
machine.succeed(
+
"grep -oE '/(customize|components)[^\"]*' /tmp/cryptpad_home.html"
+
" | while read -r page; do"
+
" curl -O --fail https://cryptpad.localhost$page || exit;"
+
" done")
+
+
# test some API (e.g. check cryptpad main process)
+
machine.succeed("curl --fail -d @${test_write_data} -H 'Content-Type: application/json' https://cryptpad.localhost/api/auth")
+
+
# test telemetry has been disabled
+
machine.fail("journalctl -u cryptpad | grep TELEMETRY");
+
'';
+
}