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bitwarden_rs/src/main.rs
2022-10-12 01:26:28 +02:00

527 lines
19 KiB
Rust

#![forbid(unsafe_code, non_ascii_idents)]
#![deny(
rust_2018_idioms,
rust_2021_compatibility,
noop_method_call,
pointer_structural_match,
trivial_casts,
trivial_numeric_casts,
unused_import_braces,
clippy::cast_lossless,
clippy::clone_on_ref_ptr,
clippy::equatable_if_let,
clippy::float_cmp_const,
clippy::inefficient_to_string,
clippy::linkedlist,
clippy::macro_use_imports,
clippy::manual_assert,
clippy::match_wildcard_for_single_variants,
clippy::mem_forget,
clippy::string_add_assign,
clippy::string_to_string,
clippy::unnecessary_join,
clippy::unnecessary_self_imports,
clippy::unused_async,
clippy::verbose_file_reads,
clippy::zero_sized_map_values
)]
#![cfg_attr(feature = "unstable", feature(ip))]
// The recursion_limit is mainly triggered by the json!() macro.
// The more key/value pairs there are the more recursion occurs.
// We want to keep this as low as possible, but not higher then 128.
// If you go above 128 it will cause rust-analyzer to fail,
#![recursion_limit = "87"]
// When enabled use MiMalloc as malloc instead of the default malloc
#[cfg(feature = "enable_mimalloc")]
use mimalloc::MiMalloc;
#[cfg(feature = "enable_mimalloc")]
#[cfg_attr(feature = "enable_mimalloc", global_allocator)]
static GLOBAL: MiMalloc = MiMalloc;
#[macro_use]
extern crate rocket;
#[macro_use]
extern crate serde;
#[macro_use]
extern crate serde_json;
#[macro_use]
extern crate log;
#[macro_use]
extern crate diesel;
#[macro_use]
extern crate diesel_migrations;
use std::{
fs::{canonicalize, create_dir_all},
panic,
path::Path,
process::exit,
str::FromStr,
thread,
};
use tokio::{
fs::File,
io::{AsyncBufReadExt, BufReader},
};
#[macro_use]
mod error;
mod api;
mod auth;
mod config;
mod crypto;
#[macro_use]
mod db;
mod mail;
mod ratelimit;
mod util;
pub use config::CONFIG;
pub use error::{Error, MapResult};
use rocket::data::{Limits, ToByteUnit};
pub use util::is_running_in_docker;
#[rocket::main]
async fn main() -> Result<(), Error> {
parse_args();
launch_info();
use log::LevelFilter as LF;
let level = LF::from_str(&CONFIG.log_level()).expect("Valid log level");
init_logging(level).ok();
let extra_debug = matches!(level, LF::Trace | LF::Debug);
check_data_folder().await;
check_rsa_keys().unwrap_or_else(|_| {
error!("Error creating keys, exiting...");
exit(1);
});
check_web_vault();
create_dir(&CONFIG.icon_cache_folder(), "icon cache");
create_dir(&CONFIG.tmp_folder(), "tmp folder");
create_dir(&CONFIG.sends_folder(), "sends folder");
create_dir(&CONFIG.attachments_folder(), "attachments folder");
let pool = create_db_pool().await;
schedule_jobs(pool.clone()).await;
crate::db::models::TwoFactor::migrate_u2f_to_webauthn(&pool.get().await.unwrap()).await.unwrap();
launch_rocket(pool, extra_debug).await // Blocks until program termination.
}
const HELP: &str = "\
Alternative implementation of the Bitwarden server API written in Rust
USAGE:
vaultwarden
FLAGS:
-h, --help Prints help information
-v, --version Prints the app version
";
pub const VERSION: Option<&str> = option_env!("VW_VERSION");
fn parse_args() {
let mut pargs = pico_args::Arguments::from_env();
let version = VERSION.unwrap_or("(Version info from Git not present)");
if pargs.contains(["-h", "--help"]) {
println!("vaultwarden {}", version);
print!("{}", HELP);
exit(0);
} else if pargs.contains(["-v", "--version"]) {
println!("vaultwarden {}", version);
exit(0);
}
}
fn launch_info() {
println!("/--------------------------------------------------------------------\\");
println!("| Starting Vaultwarden |");
if let Some(version) = VERSION {
println!("|{:^68}|", format!("Version {}", version));
}
println!("|--------------------------------------------------------------------|");
println!("| This is an *unofficial* Bitwarden implementation, DO NOT use the |");
println!("| official channels to report bugs/features, regardless of client. |");
println!("| Send usage/configuration questions or feature requests to: |");
println!("| https://vaultwarden.discourse.group/ |");
println!("| Report suspected bugs/issues in the software itself at: |");
println!("| https://github.com/dani-garcia/vaultwarden/issues/new |");
println!("\\--------------------------------------------------------------------/\n");
}
fn init_logging(level: log::LevelFilter) -> Result<(), fern::InitError> {
// Depending on the main log level we either want to disable or enable logging for trust-dns.
// Else if there are timeouts it will clutter the logs since trust-dns uses warn for this.
let trust_dns_level = if level >= log::LevelFilter::Debug {
level
} else {
log::LevelFilter::Off
};
let mut logger = fern::Dispatch::new()
.level(level)
// Hide unknown certificate errors if using self-signed
.level_for("rustls::session", log::LevelFilter::Off)
// Hide failed to close stream messages
.level_for("hyper::server", log::LevelFilter::Warn)
// Silence rocket logs
.level_for("_", log::LevelFilter::Warn)
.level_for("rocket::launch", log::LevelFilter::Error)
.level_for("rocket::launch_", log::LevelFilter::Error)
.level_for("rocket::rocket", log::LevelFilter::Warn)
.level_for("rocket::server", log::LevelFilter::Warn)
.level_for("rocket::fairing::fairings", log::LevelFilter::Warn)
.level_for("rocket::shield::shield", log::LevelFilter::Warn)
.level_for("hyper::proto", log::LevelFilter::Off)
.level_for("hyper::client", log::LevelFilter::Off)
// Prevent cookie_store logs
.level_for("cookie_store", log::LevelFilter::Off)
// Variable level for trust-dns used by reqwest
.level_for("trust_dns_proto", trust_dns_level)
.chain(std::io::stdout());
// Enable smtp debug logging only specifically for smtp when need.
// This can contain sensitive information we do not want in the default debug/trace logging.
if CONFIG.smtp_debug() {
println!(
"[WARNING] SMTP Debugging is enabled (SMTP_DEBUG=true). Sensitive information could be disclosed via logs!"
);
println!("[WARNING] Only enable SMTP_DEBUG during troubleshooting!\n");
logger = logger.level_for("lettre::transport::smtp", log::LevelFilter::Debug)
} else {
logger = logger.level_for("lettre::transport::smtp", log::LevelFilter::Off)
}
if CONFIG.extended_logging() {
logger = logger.format(|out, message, record| {
out.finish(format_args!(
"[{}][{}][{}] {}",
chrono::Local::now().format(&CONFIG.log_timestamp_format()),
record.target(),
record.level(),
message
))
});
} else {
logger = logger.format(|out, message, _| out.finish(format_args!("{}", message)));
}
if let Some(log_file) = CONFIG.log_file() {
logger = logger.chain(fern::log_file(log_file)?);
}
#[cfg(not(windows))]
{
if cfg!(feature = "enable_syslog") || CONFIG.use_syslog() {
logger = chain_syslog(logger);
}
}
logger.apply()?;
// Catch panics and log them instead of default output to StdErr
panic::set_hook(Box::new(|info| {
let thread = thread::current();
let thread = thread.name().unwrap_or("unnamed");
let msg = match info.payload().downcast_ref::<&'static str>() {
Some(s) => *s,
None => match info.payload().downcast_ref::<String>() {
Some(s) => &**s,
None => "Box<Any>",
},
};
let backtrace = backtrace::Backtrace::new();
match info.location() {
Some(location) => {
error!(
target: "panic", "thread '{}' panicked at '{}': {}:{}\n{:?}",
thread,
msg,
location.file(),
location.line(),
backtrace
);
}
None => error!(
target: "panic",
"thread '{}' panicked at '{}'\n{:?}",
thread,
msg,
backtrace
),
}
}));
Ok(())
}
#[cfg(not(windows))]
fn chain_syslog(logger: fern::Dispatch) -> fern::Dispatch {
let syslog_fmt = syslog::Formatter3164 {
facility: syslog::Facility::LOG_USER,
hostname: None,
process: "vaultwarden".into(),
pid: 0,
};
match syslog::unix(syslog_fmt) {
Ok(sl) => logger.chain(sl),
Err(e) => {
error!("Unable to connect to syslog: {:?}", e);
logger
}
}
}
fn create_dir(path: &str, description: &str) {
// Try to create the specified dir, if it doesn't already exist.
let err_msg = format!("Error creating {} directory '{}'", description, path);
create_dir_all(path).expect(&err_msg);
}
async fn check_data_folder() {
let data_folder = &CONFIG.data_folder();
let path = Path::new(data_folder);
if !path.exists() {
error!("Data folder '{}' doesn't exist.", data_folder);
if is_running_in_docker() {
error!("Verify that your data volume is mounted at the correct location.");
} else {
error!("Create the data folder and try again.");
}
exit(1);
}
if !path.is_dir() {
error!("Data folder '{}' is not a directory.", data_folder);
exit(1);
}
if is_running_in_docker()
&& std::env::var("I_REALLY_WANT_VOLATILE_STORAGE").is_err()
&& !docker_data_folder_is_persistent(data_folder).await
{
error!(
"No persistent volume!\n\
########################################################################################\n\
# It looks like you did not configure a persistent volume! #\n\
# This will result in permanent data loss when the container is removed or updated! #\n\
# If you really want to use volatile storage set `I_REALLY_WANT_VOLATILE_STORAGE=true` #\n\
########################################################################################\n"
);
exit(1);
}
}
/// Detect when using Docker or Podman the DATA_FOLDER is either a bind-mount or a volume created manually.
/// If not created manually, then the data will not be persistent.
/// A none persistent volume in either Docker or Podman is represented by a 64 alphanumerical string.
/// If we detect this string, we will alert about not having a persistent self defined volume.
/// This probably means that someone forgot to add `-v /path/to/vaultwarden_data/:/data`
async fn docker_data_folder_is_persistent(data_folder: &str) -> bool {
if let Ok(mountinfo) = File::open("/proc/self/mountinfo").await {
// Since there can only be one mountpoint to the DATA_FOLDER
// We do a basic check for this mountpoint surrounded by a space.
let data_folder_match = if data_folder.starts_with('/') {
format!(" {data_folder} ")
} else {
format!(" /{data_folder} ")
};
let mut lines = BufReader::new(mountinfo).lines();
while let Some(line) = lines.next_line().await.unwrap_or_default() {
// Only execute a regex check if we find the base match
if line.contains(&data_folder_match) {
let re = regex::Regex::new(r"/volumes/[a-z0-9]{64}/_data /").unwrap();
if re.is_match(&line) {
return false;
}
// If we did found a match for the mountpoint, but not the regex, then still stop searching.
break;
}
}
}
// In all other cases, just assume a true.
// This is just an informative check to try and prevent data loss.
true
}
fn check_rsa_keys() -> Result<(), crate::error::Error> {
// If the RSA keys don't exist, try to create them
let priv_path = CONFIG.private_rsa_key();
let pub_path = CONFIG.public_rsa_key();
if !util::file_exists(&priv_path) {
let rsa_key = openssl::rsa::Rsa::generate(2048)?;
let priv_key = rsa_key.private_key_to_pem()?;
crate::util::write_file(&priv_path, &priv_key)?;
info!("Private key created correctly.");
}
if !util::file_exists(&pub_path) {
let rsa_key = openssl::rsa::Rsa::private_key_from_pem(&std::fs::read(&priv_path)?)?;
let pub_key = rsa_key.public_key_to_pem()?;
crate::util::write_file(&pub_path, &pub_key)?;
info!("Public key created correctly.");
}
auth::load_keys();
Ok(())
}
fn check_web_vault() {
if !CONFIG.web_vault_enabled() {
return;
}
let index_path = Path::new(&CONFIG.web_vault_folder()).join("index.html");
if !index_path.exists() {
error!(
"Web vault is not found at '{}'. To install it, please follow the steps in: ",
CONFIG.web_vault_folder()
);
error!("https://github.com/dani-garcia/vaultwarden/wiki/Building-binary#install-the-web-vault");
error!("You can also set the environment variable 'WEB_VAULT_ENABLED=false' to disable it");
exit(1);
}
}
async fn create_db_pool() -> db::DbPool {
match util::retry_db(db::DbPool::from_config, CONFIG.db_connection_retries()).await {
Ok(p) => p,
Err(e) => {
error!("Error creating database pool: {:?}", e);
exit(1);
}
}
}
async fn launch_rocket(pool: db::DbPool, extra_debug: bool) -> Result<(), Error> {
let basepath = &CONFIG.domain_path();
let mut config = rocket::Config::from(rocket::Config::figment());
config.temp_dir = canonicalize(CONFIG.tmp_folder()).unwrap().into();
config.cli_colors = false; // Make sure Rocket does not color any values for logging.
config.limits = Limits::new()
.limit("json", 20.megabytes()) // 20MB should be enough for very large imports, something like 5000+ vault entries
.limit("data-form", 525.megabytes()) // This needs to match the maximum allowed file size for Send
.limit("file", 525.megabytes()); // This needs to match the maximum allowed file size for attachments
// If adding more paths here, consider also adding them to
// crate::utils::LOGGED_ROUTES to make sure they appear in the log
let instance = rocket::custom(config)
.mount([basepath, "/"].concat(), api::web_routes())
.mount([basepath, "/api"].concat(), api::core_routes())
.mount([basepath, "/admin"].concat(), api::admin_routes())
.mount([basepath, "/identity"].concat(), api::identity_routes())
.mount([basepath, "/icons"].concat(), api::icons_routes())
.mount([basepath, "/notifications"].concat(), api::notifications_routes())
.register([basepath, "/"].concat(), api::web_catchers())
.register([basepath, "/api"].concat(), api::core_catchers())
.manage(pool)
.manage(api::start_notification_server())
.attach(util::AppHeaders())
.attach(util::Cors())
.attach(util::BetterLogging(extra_debug))
.ignite()
.await?;
CONFIG.set_rocket_shutdown_handle(instance.shutdown());
ctrlc::set_handler(move || {
info!("Exiting vaultwarden!");
CONFIG.shutdown();
})
.expect("Error setting Ctrl-C handler");
let _ = instance.launch().await?;
info!("Vaultwarden process exited!");
Ok(())
}
async fn schedule_jobs(pool: db::DbPool) {
if CONFIG.job_poll_interval_ms() == 0 {
info!("Job scheduler disabled.");
return;
}
let runtime = tokio::runtime::Runtime::new().unwrap();
thread::Builder::new()
.name("job-scheduler".to_string())
.spawn(move || {
use job_scheduler_ng::{Job, JobScheduler};
let _runtime_guard = runtime.enter();
let mut sched = JobScheduler::new();
// Purge sends that are past their deletion date.
if !CONFIG.send_purge_schedule().is_empty() {
sched.add(Job::new(CONFIG.send_purge_schedule().parse().unwrap(), || {
runtime.spawn(api::purge_sends(pool.clone()));
}));
}
// Purge trashed items that are old enough to be auto-deleted.
if !CONFIG.trash_purge_schedule().is_empty() {
sched.add(Job::new(CONFIG.trash_purge_schedule().parse().unwrap(), || {
runtime.spawn(api::purge_trashed_ciphers(pool.clone()));
}));
}
// Send email notifications about incomplete 2FA logins, which potentially
// indicates that a user's master password has been compromised.
if !CONFIG.incomplete_2fa_schedule().is_empty() {
sched.add(Job::new(CONFIG.incomplete_2fa_schedule().parse().unwrap(), || {
runtime.spawn(api::send_incomplete_2fa_notifications(pool.clone()));
}));
}
// Grant emergency access requests that have met the required wait time.
// This job should run before the emergency access reminders job to avoid
// sending reminders for requests that are about to be granted anyway.
if !CONFIG.emergency_request_timeout_schedule().is_empty() {
sched.add(Job::new(CONFIG.emergency_request_timeout_schedule().parse().unwrap(), || {
runtime.spawn(api::emergency_request_timeout_job(pool.clone()));
}));
}
// Send reminders to emergency access grantors that there are pending
// emergency access requests.
if !CONFIG.emergency_notification_reminder_schedule().is_empty() {
sched.add(Job::new(CONFIG.emergency_notification_reminder_schedule().parse().unwrap(), || {
runtime.spawn(api::emergency_notification_reminder_job(pool.clone()));
}));
}
// Periodically check for jobs to run. We probably won't need any
// jobs that run more often than once a minute, so a default poll
// interval of 30 seconds should be sufficient. Users who want to
// schedule jobs to run more frequently for some reason can reduce
// the poll interval accordingly.
//
// Note that the scheduler checks jobs in the order in which they
// were added, so if two jobs are both eligible to run at a given
// tick, the one that was added earlier will run first.
loop {
sched.tick();
runtime.block_on(async move {
tokio::time::sleep(tokio::time::Duration::from_millis(CONFIG.job_poll_interval_ms())).await
});
}
})
.expect("Error spawning job scheduler thread");
}