nixos/applications/bitwarden/_bitwarden_sync_module.nix

334 lines
10 KiB
Nix

{
pkgs,
config,
lib,
...
}:
with lib; let
# to be changed once the package is accepted
connector = pkgs.callPackage ./_bitwarden-directory-connector.nix {};
cfg = config.services.bitwarden_connector;
nodejs = pkgs.nodejs-18_x;
ldap_data = ''
{
"ssl": ${boolToString cfg.ldap.ssl},
"startTls": ${boolToString cfg.ldap.startTls},
"sslAllowUnauthorized": ${boolToString cfg.ldap.startTls},
"port": ${toString cfg.ldap.port},
"currentUser": false,
"ad": ${boolToString cfg.ldap.ad},
"pagedSearch": true,
"password": "to_be_replaced",
"hostname": "${cfg.ldap.hostname}",
"rootPath": "${cfg.ldap.root}",
"username": "${cfg.ldap.username}"
}
'';
sync_data = ''
{
"removeDisabled": ${boolToString cfg.sync.removeDisabled},
"overwriteExisting": ${boolToString cfg.sync.overwriteExisting},
"largeImport": ${boolToString cfg.sync.largeImport},
"creationDateAttribute": "${cfg.sync.creationDateAttribute}",
"memberAttribute": "${cfg.sync.memberAttribute}",
"useEmailPrefixSuffix": ${boolToString cfg.sync.emailPrefixSuffix.enable},
${optionalString cfg.sync.emailPrefixSuffix.enable ''
"emailPrefixAttribute": "${cfg.sync.emailPrefixSuffix.prefixAttribute}",
"emailSuffix": "${cfg.sync.emailPrefixSuffix.suffix}",
''}
"users": ${boolToString cfg.sync.users.enable},
${optionalString cfg.sync.users.enable ''
"userPath": "${cfg.sync.users.path}",
"userObjectClass": "${cfg.sync.users.objectClass}",
"userEmailAttribute": "${cfg.sync.users.emailAttribute}",
"userFilter": "${cfg.sync.users.filter}",
''}
"groups": ${boolToString cfg.sync.groups.enable},
${optionalString cfg.sync.groups.enable ''
"groupPath": "${cfg.sync.groups.path}",
"groupObjectClass": "${cfg.sync.groups.objectClass}",
"groupNameAttribute": "${cfg.sync.groups.nameAttribute}",
"groupFilter": "${cfg.sync.groups.filter}",
''}
"interval": 5
}
'';
sed_string = string: builtins.replaceStrings ["." "/" "\n"] ["\\." "\\/" "\\n"] string;
in {
imports = [];
options.services.bitwarden_connector = {
enable = mkEnableOption "Bitwarden Directory Connector";
domain = mkOption {
type = types.str;
description = lib.mdDoc "The domain the Bitwarden/Vaultwarden is accessable on.";
example = "https://vaultwarden.example.com";
};
user = mkOption {
type = types.str;
description = lib.mdDoc "User to run the program.";
default = "bwdc";
};
directory = mkOption {
type = types.str;
description = lib.mdDoc "Folder to store the config file.";
default = "/etc/bitwarden/${cfg.user}";
};
ldap = {
ssl = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Use SSL.";
};
startTls = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Use startTls.";
};
sslAllowUnauthorized = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "";
};
ad = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Is Active Directory.";
};
port = mkOption {
type = types.int;
default = 389;
description = lib.mdDoc "Port LDAP is accessable on";
};
hostname = mkOption {
type = types.str;
description = lib.mdDoc "The host the LDAP is accessable on.";
example = "ldap.example.com";
};
root = mkOption {
type = types.str;
description = lib.mdDoc "Root path for LDAP";
example = "dc=example,dc=com";
};
username = mkOption {
type = types.str;
description = lib.mdDoc "The user to authenticate as.";
example = "cn=admin,dc=example,dc=com";
};
pw_env = mkOption {
type = types.str;
description = lib.mdDoc "The ENV var that the ldap password is stored.";
default = "LDAP_PW";
};
};
sync = {
interval = mkOption {
type = types.str;
default = "*:0,15,30,45";
description = lib.mdDoc "When to run the connector, cron syntax.";
};
removeDisabled = mkOption {
type = types.bool;
default = true;
description = lib.mdDoc "Remove users from bitwarden groups if no longer in the ldap group.";
};
overwriteExisting = mkOption {
type = types.bool;
default = false;
description =
lib.mdDoc "Remove and re-add users/groups, See https://bitwarden.com/help/user-group-filters/#overwriting-syncs for more details.";
};
largeImport = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Enable if you ar syncing more than 2000 users/groups.";
};
memberAttribute = mkOption {
type = types.str;
description = lib.mdDoc "Attribute that lists members in a LDAP group.";
example = "uniqueMember";
};
creationDateAttribute = mkOption {
type = types.str;
description = lib.mdDoc "Attribute that lists a users creation date.";
example = "whenCreated";
};
emailPrefixSuffix = {
enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "If a user has no email address, combine a username prefix with a suffix value to form an email.";
};
prefixAttribute = mkOption {
type = types.str;
description = lib.mdDoc "Attribute that has a users username.";
example = "accountName";
};
suffix = mkOption {
type = types.str;
description = lib.mdDoc "Suffix for the email, normally @example.com.";
example = "@example.com";
};
};
users = {
enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Sync users.";
};
path = mkOption {
type = types.str;
description = lib.mdDoc "User directory, relative to root.";
example = "ou=users";
};
objectClass = mkOption {
type = types.str;
description = lib.mdDoc "A class that users will have.";
example = "inetOrgPerson";
};
emailAttribute = mkOption {
type = types.str;
description = lib.mdDoc "Attribute for a users email.";
example = "mail";
};
filter = mkOption {
type = types.str;
description = lib.mdDoc "Filter for users.";
example = "(memberOf=cn=sales,ou=groups,dc=example,dc=com)";
};
};
groups = {
enable = mkOption {
type = types.bool;
default = false;
description = lib.mdDoc "Sync groups.";
};
path = mkOption {
type = types.str;
description = lib.mdDoc "Group directory, relative to root.";
example = "ou=groups";
};
objectClass = mkOption {
type = types.str;
description = lib.mdDoc "A class that groups will have.";
example = "groupOfNames";
};
nameAttribute = mkOption {
type = types.str;
description = lib.mdDoc "Attribute for a name of group.";
example = "cn";
};
filter = mkOption {
type = types.str;
description = lib.mdDoc "Filter for groups.";
example = "(cn=sales)";
};
};
};
env = {
description = "Env files to be passed in.";
ldap = mkOption rec {
type = types.str;
description = "Auth for the LDAP, has ${cfg.ldap.pw_env}";
};
bitwarden = mkOption rec {
type = types.str;
description = "Auth for Bitwarden, has BW_CLIENTID and BW_CLIENTSECRET";
};
};
};
config = mkIf cfg.enable {
users.groups."${cfg.user}" = {};
users.users."${cfg.user}" = {
createHome = true;
isSystemUser = true;
home = "${cfg.directory}";
group = "${cfg.user}";
homeMode = "711";
};
systemd = {
timers."${cfg.user}" = {
description = "Timer for ${cfg.user}";
wantedBy = ["timers.target"];
partOf = ["${cfg.user}.service"];
timerConfig = {
OnCalendar = cfg.sync.interval;
Unit = "${cfg.user}.service";
Persistent = true;
};
};
services."${cfg.user}" = {
description = "Main process for Bitwarden Directory Connector";
wantedBy = ["multi-user.target"];
after = ["network-online.target"];
wants = [];
environment = {
BITWARDENCLI_CONNECTOR_APPDATA_DIR = cfg.directory;
BITWARDENCLI_CONNECTOR_PLAINTEXT_SECRETS = "true";
};
serviceConfig = {
Type = "oneshot";
User = "${cfg.user}";
Group = "${cfg.user}";
ExecStartPre = pkgs.writeShellScript "${cfg.user}-config" ''
# create the config file
${nodejs}/bin/node ${connector}/build-cli/bwdc.js data-file
${nodejs}/bin/node ${connector}/build-cli/bwdc.js config server ${cfg.domain}
# now login to set credentials
${nodejs}/bin/node ${connector}/build-cli/bwdc.js login
# set the ldap details
sed -i 's/"ldap": null/"ldap": ${sed_string ldap_data}/' ${cfg.directory}/data.json
# set the client id
orgID=$(echo $BW_CLIENTID | sed 's/organization\.//g')
sed -i "s/\"organizationId\": null/\"organizationId\": \"$orgID\"/" ${cfg.directory}/data.json
# and sync data
sed -i 's/"sync": null/"sync": ${sed_string sync_data}/' ${cfg.directory}/data.json
# final config
${nodejs}/bin/node ${connector}/build-cli/bwdc.js config directory 0
${nodejs}/bin/node ${connector}/build-cli/bwdc.js config ldap.password --secretenv ${cfg.ldap.pw_env}
'';
ExecStart = ''${nodejs}/bin/node ${connector}/build-cli/bwdc.js sync'';
EnvironmentFile = [
"${cfg.env.ldap}"
"${cfg.env.bitwarden}"
];
};
};
};
};
}