vaultwarden/src/config.rs
Daniel García 5794969f5b
Merge pull request #406 from shauder/feature/disable-admin-token
Allow the Admin token to be disabled in the advanced menu
2019-02-20 23:06:52 +01:00

530 lines
19 KiB
Rust

use std::process::exit;
use std::sync::RwLock;
use crate::error::Error;
use crate::util::get_env;
lazy_static! {
pub static ref CONFIG: Config = Config::load().unwrap_or_else(|e| {
println!("Error loading config:\n\t{:?}\n", e);
exit(12)
});
pub static ref CONFIG_FILE: String = get_env("CONFIG_FILE").unwrap_or_else(|| "data/config.json".into());
}
pub type Pass = String;
macro_rules! make_config {
($(
$(#[doc = $groupdoc:literal])?
$group:ident $(: $group_enabled:ident)? {
$(
$(#[doc = $doc:literal])+
$name:ident : $ty:ty, $editable:literal, $none_action:ident $(, $default:expr)?;
)+},
)+) => {
pub struct Config { inner: RwLock<Inner> }
struct Inner {
templates: Handlebars,
config: ConfigItems,
_env: ConfigBuilder,
_usr: ConfigBuilder,
}
#[derive(Debug, Clone, Default, Deserialize, Serialize)]
pub struct ConfigBuilder {
$($(
#[serde(skip_serializing_if = "Option::is_none")]
$name: Option<$ty>,
)+)+
}
impl ConfigBuilder {
fn from_env() -> Self {
dotenv::from_path(".env").ok();
let mut builder = ConfigBuilder::default();
$($(
builder.$name = get_env(&stringify!($name).to_uppercase());
)+)+
builder
}
fn from_file(path: &str) -> Result<Self, Error> {
use crate::util::read_file_string;
let config_str = read_file_string(path)?;
serde_json::from_str(&config_str).map_err(Into::into)
}
/// Merges the values of both builders into a new builder.
/// If both have the same element, `other` wins.
fn merge(&self, other: &Self) -> Self {
let mut overrides = Vec::new();
let mut builder = self.clone();
$($(
if let v @Some(_) = &other.$name {
builder.$name = v.clone();
if self.$name.is_some() {
overrides.push(stringify!($name).to_uppercase());
}
}
)+)+
if !overrides.is_empty() {
// We can't use warn! here because logging isn't setup yet.
println!("[WARNING] The following environment variables are being overriden by the config file,");
println!("[WARNING] please use the admin panel to make changes to them:");
println!("[WARNING] {}\n", overrides.join(", "));
}
builder
}
/// Returns a new builder with all the elements from self,
/// except those that are equal in both sides
fn _remove(&self, other: &Self) -> Self {
let mut builder = ConfigBuilder::default();
$($(
if &self.$name != &other.$name {
builder.$name = self.$name.clone();
}
)+)+
builder
}
fn build(&self) -> ConfigItems {
let mut config = ConfigItems::default();
let _domain_set = self.domain.is_some();
$($(
config.$name = make_config!{ @build self.$name.clone(), &config, $none_action, $($default)? };
)+)+
config.domain_set = _domain_set;
config
}
}
#[derive(Debug, Clone, Default)]
pub struct ConfigItems { $($(pub $name: make_config!{@type $ty, $none_action}, )+)+ }
#[allow(unused)]
impl Config {
$($(
pub fn $name(&self) -> make_config!{@type $ty, $none_action} {
self.inner.read().unwrap().config.$name.clone()
}
)+)+
pub fn prepare_json(&self) -> serde_json::Value {
let (def, cfg) = {
let inner = &self.inner.read().unwrap();
(inner._env.build(), inner.config.clone())
};
fn _get_form_type(rust_type: &str) -> &'static str {
match rust_type {
"Pass" => "password",
"String" => "text",
"bool" => "checkbox",
_ => "number"
}
}
fn _get_doc(doc: &str) -> serde_json::Value {
let mut split = doc.split("|>").map(str::trim);
json!({
"name": split.next(),
"description": split.next()
})
}
json!([ $({
"group": stringify!($group),
"grouptoggle": stringify!($($group_enabled)?),
"groupdoc": make_config!{ @show $($groupdoc)? },
"elements": [
$( {
"editable": $editable,
"name": stringify!($name),
"value": cfg.$name,
"default": def.$name,
"type": _get_form_type(stringify!($ty)),
"doc": _get_doc(concat!($($doc),+)),
}, )+
]}, )+ ])
}
}
};
// Group or empty string
( @show ) => { "" };
( @show $lit:literal ) => { $lit };
// Wrap the optionals in an Option type
( @type $ty:ty, option) => { Option<$ty> };
( @type $ty:ty, $id:ident) => { $ty };
// Generate the values depending on none_action
( @build $value:expr, $config:expr, option, ) => { $value };
( @build $value:expr, $config:expr, def, $default:expr ) => { $value.unwrap_or($default) };
( @build $value:expr, $config:expr, auto, $default_fn:expr ) => {{
match $value {
Some(v) => v,
None => {
let f: &Fn(&ConfigItems) -> _ = &$default_fn;
f($config)
}
}
}};
}
//STRUCTURE:
// /// Short description (without this they won't appear on the list)
// group {
// /// Friendly Name |> Description (Optional)
// name: type, is_editable, none_action, <default_value (Optional)>
// }
//
// Where none_action applied when the value wasn't provided and can be:
// def: Use a default value
// auto: Value is auto generated based on other values
// option: Value is optional
make_config! {
folders {
/// Data folder |> Main data folder
data_folder: String, false, def, "data".to_string();
/// Database URL
database_url: String, false, auto, |c| format!("{}/{}", c.data_folder, "db.sqlite3");
/// Icon chache folder
icon_cache_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "icon_cache");
/// Attachments folder
attachments_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "attachments");
/// Templates folder
templates_folder: String, false, auto, |c| format!("{}/{}", c.data_folder, "templates");
/// Session JWT key
rsa_key_filename: String, false, auto, |c| format!("{}/{}", c.data_folder, "rsa_key");
/// Web vault folder
web_vault_folder: String, false, def, "web-vault/".to_string();
},
ws {
/// Enable websocket notifications
websocket_enabled: bool, false, def, false;
/// Websocket address
websocket_address: String, false, def, "0.0.0.0".to_string();
/// Websocket port
websocket_port: u16, false, def, 3012;
},
/// General settings
settings {
/// Domain URL |> This needs to be set to the URL used to access the server, including 'http[s]://' and port, if it's different than the default. Some server functions don't work correctly without this value
domain: String, true, def, "http://localhost".to_string();
/// Domain Set |> Indicates if the domain is set by the admin. Otherwise the default will be used.
domain_set: bool, false, def, false;
/// Enable web vault
web_vault_enabled: bool, false, def, true;
/// Disable icon downloads |> Set to true to disable icon downloading, this would still serve icons from $ICON_CACHE_FOLDER,
/// but it won't produce any external network request. Needs to set $ICON_CACHE_TTL to 0,
/// otherwise it will delete them and they won't be downloaded again.
disable_icon_download: bool, true, def, false;
/// Allow new signups |> Controls if new users can register. Note that while this is disabled, users could still be invited
signups_allowed: bool, true, def, true;
/// Allow invitations |> Controls whether users can be invited by organization admins, even when signups are disabled
invitations_allowed: bool, true, def, true;
/// Password iterations |> Number of server-side passwords hashing iterations. The changes only apply when a user changes their password. Not recommended to lower the value
password_iterations: i32, true, def, 100_000;
/// Show password hints |> Controls if the password hint should be shown directly in the web page. Otherwise, if email is disabled, there is no way to see the password hint
show_password_hint: bool, true, def, true;
/// Admin page token |> The token used to authenticate in this very same page. Changing it here won't deauthorize the current session
admin_token: Pass, true, option;
},
/// Advanced settings
advanced {
/// Positive icon cache expiry |> Number of seconds to consider that an already cached icon is fresh. After this period, the icon will be redownloaded
icon_cache_ttl: u64, true, def, 2_592_000;
/// Negative icon cache expiry |> Number of seconds before trying to download an icon that failed again.
icon_cache_negttl: u64, true, def, 259_200;
/// Icon download timeout |> Number of seconds when to stop attempting to download an icon.
icon_download_timeout: u64, true, def, 10;
/// Reload templates (Dev) |> When this is set to true, the templates get reloaded with every request. ONLY use this during development, as it can slow down the server
reload_templates: bool, true, def, false;
/// Log routes at launch (Dev)
log_mounts: bool, true, def, false;
/// Enable extended logging
extended_logging: bool, false, def, true;
/// Log file path
log_file: String, false, option;
/// Enable DB WAL |> Turning this off might lead to worse performance, but might help if using bitwarden_rs on some exotic filesystems, that do not support WAL. Please make sure you read project wiki on the topic before changing this setting.
enable_db_wal: bool, false, def, true;
/// Disable Admin Token (Know the risks!) |> Disables the Admin Token for the admin page so you may use your own auth in-front
disable_admin_token: bool, true, def, false;
},
/// Yubikey settings
yubico: _enable_yubico {
/// Enabled
_enable_yubico: bool, true, def, true;
/// Client ID
yubico_client_id: String, true, option;
/// Secret Key
yubico_secret_key: Pass, true, option;
/// Server
yubico_server: String, true, option;
},
/// SMTP Email Settings
smtp: _enable_smtp {
/// Enabled
_enable_smtp: bool, true, def, true;
/// Host
smtp_host: String, true, option;
/// Enable SSL
smtp_ssl: bool, true, def, true;
/// Port
smtp_port: u16, true, auto, |c| if c.smtp_ssl {587} else {25};
/// From Address
smtp_from: String, true, def, String::new();
/// From Name
smtp_from_name: String, true, def, "Bitwarden_RS".to_string();
/// Username
smtp_username: String, true, option;
/// Password
smtp_password: Pass, true, option;
},
}
fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
if cfg.yubico_client_id.is_some() != cfg.yubico_secret_key.is_some() {
err!("Both `YUBICO_CLIENT_ID` and `YUBICO_SECRET_KEY` need to be set for Yubikey OTP support")
}
if cfg.smtp_host.is_some() == cfg.smtp_from.is_empty() {
err!("Both `SMTP_HOST` and `SMTP_FROM` need to be set for email support")
}
if cfg.smtp_username.is_some() != cfg.smtp_password.is_some() {
err!("Both `SMTP_USERNAME` and `SMTP_PASSWORD` need to be set to enable email authentication")
}
Ok(())
}
impl Config {
pub fn load() -> Result<Self, Error> {
// Loading from env and file
let _env = ConfigBuilder::from_env();
let _usr = ConfigBuilder::from_file(&CONFIG_FILE).unwrap_or_default();
// Create merged config, config file overwrites env
let builder = _env.merge(&_usr);
// Fill any missing with defaults
let config = builder.build();
validate_config(&config)?;
Ok(Config {
inner: RwLock::new(Inner {
templates: load_templates(&config.templates_folder),
config,
_env,
_usr,
}),
})
}
pub fn update_config(&self, other: ConfigBuilder) -> Result<(), Error> {
// Remove default values
//let builder = other.remove(&self.inner.read().unwrap()._env);
// TODO: Remove values that are defaults, above only checks those set by env and not the defaults
let builder = other;
// Serialize now before we consume the builder
let config_str = serde_json::to_string_pretty(&builder)?;
// Prepare the combined config
let config = {
let env = &self.inner.read().unwrap()._env;
env.merge(&builder).build()
};
validate_config(&config)?;
// Save both the user and the combined config
{
let mut writer = self.inner.write().unwrap();
writer.config = config;
writer._usr = builder;
}
//Save to file
use std::{fs::File, io::Write};
let mut file = File::create(&*CONFIG_FILE)?;
file.write_all(config_str.as_bytes())?;
Ok(())
}
pub fn delete_user_config(&self) -> Result<(), Error> {
crate::util::delete_file(&CONFIG_FILE)?;
// Empty user config
let usr = ConfigBuilder::default();
// Config now is env + defaults
let config = {
let env = &self.inner.read().unwrap()._env;
env.build()
};
// Save configs
{
let mut writer = self.inner.write().unwrap();
writer.config = config;
writer._usr = usr;
}
Ok(())
}
pub fn private_rsa_key(&self) -> String {
format!("{}.der", CONFIG.rsa_key_filename())
}
pub fn private_rsa_key_pem(&self) -> String {
format!("{}.pem", CONFIG.rsa_key_filename())
}
pub fn public_rsa_key(&self) -> String {
format!("{}.pub.der", CONFIG.rsa_key_filename())
}
pub fn mail_enabled(&self) -> bool {
let inner = &self.inner.read().unwrap().config;
inner._enable_smtp && inner.smtp_host.is_some()
}
pub fn yubico_enabled(&self) -> bool {
let inner = &self.inner.read().unwrap().config;
inner._enable_yubico && inner.yubico_client_id.is_some() && inner.yubico_secret_key.is_some()
}
pub fn render_template<T: serde::ser::Serialize>(
&self,
name: &str,
data: &T,
) -> Result<String, crate::error::Error> {
if CONFIG.reload_templates() {
warn!("RELOADING TEMPLATES");
let hb = load_templates(CONFIG.templates_folder().as_ref());
hb.render(name, data).map_err(Into::into)
} else {
let hb = &CONFIG.inner.read().unwrap().templates;
hb.render(name, data).map_err(Into::into)
}
}
}
use handlebars::{
Context, Handlebars, Helper, HelperDef, HelperResult, Output, RenderContext, RenderError, Renderable,
};
fn load_templates(path: &str) -> Handlebars {
let mut hb = Handlebars::new();
// Error on missing params
hb.set_strict_mode(true);
// Register helpers
hb.register_helper("case", Box::new(CaseHelper));
hb.register_helper("jsesc", Box::new(JsEscapeHelper));
macro_rules! reg {
($name:expr) => {{
let template = include_str!(concat!("static/templates/", $name, ".hbs"));
hb.register_template_string($name, template).unwrap();
}};
($name:expr, $ext:expr) => {{
reg!($name);
reg!(concat!($name, $ext));
}};
}
// First register default templates here
reg!("email/invite_accepted", ".html");
reg!("email/invite_confirmed", ".html");
reg!("email/pw_hint_none", ".html");
reg!("email/pw_hint_some", ".html");
reg!("email/send_org_invite", ".html");
reg!("admin/base");
reg!("admin/login");
reg!("admin/page");
// And then load user templates to overwrite the defaults
// Use .hbs extension for the files
// Templates get registered with their relative name
hb.register_templates_directory(".hbs", path).unwrap();
hb
}
pub struct CaseHelper;
impl HelperDef for CaseHelper {
fn call<'reg: 'rc, 'rc>(
&self,
h: &Helper<'reg, 'rc>,
r: &'reg Handlebars,
ctx: &Context,
rc: &mut RenderContext<'reg>,
out: &mut Output,
) -> HelperResult {
let param = h
.param(0)
.ok_or_else(|| RenderError::new("Param not found for helper \"case\""))?;
let value = param.value().clone();
if h.params().iter().skip(1).any(|x| x.value() == &value) {
h.template().map(|t| t.render(r, ctx, rc, out)).unwrap_or(Ok(()))
} else {
Ok(())
}
}
}
pub struct JsEscapeHelper;
impl HelperDef for JsEscapeHelper {
fn call<'reg: 'rc, 'rc>(
&self,
h: &Helper<'reg, 'rc>,
_: &'reg Handlebars,
_: &Context,
_: &mut RenderContext<'reg>,
out: &mut Output,
) -> HelperResult {
let param = h
.param(0)
.ok_or_else(|| RenderError::new("Param not found for helper \"js_escape\""))?;
let value = param
.value()
.as_str()
.ok_or_else(|| RenderError::new("Param for helper \"js_escape\" is not a String"))?;
let escaped_value = value.replace('\\', "").replace('\'', "\\x22").replace('\"', "\\x27");
let quoted_value = format!("&quot;{}&quot;", escaped_value);
out.write(&quoted_value)?;
Ok(())
}
}