bitwarden_rs/src/auth.rs
2019-03-03 16:11:55 +01:00

385 lines
12 KiB
Rust

//
// JWT Handling
//
use crate::util::read_file;
use chrono::{Duration, Utc};
use jsonwebtoken::{self, Algorithm, Header};
use serde::de::DeserializeOwned;
use serde::ser::Serialize;
use crate::error::{Error, MapResult};
use crate::CONFIG;
const JWT_ALGORITHM: Algorithm = Algorithm::RS256;
lazy_static! {
pub static ref DEFAULT_VALIDITY: Duration = Duration::hours(2);
static ref JWT_HEADER: Header = Header::new(JWT_ALGORITHM);
pub static ref JWT_LOGIN_ISSUER: String = format!("{}|login", CONFIG.domain());
pub static ref JWT_INVITE_ISSUER: String = format!("{}|invite", CONFIG.domain());
pub static ref JWT_ADMIN_ISSUER: String = format!("{}|admin", CONFIG.domain());
static ref PRIVATE_RSA_KEY: Vec<u8> = match read_file(&CONFIG.private_rsa_key()) {
Ok(key) => key,
Err(e) => panic!("Error loading private RSA Key.\n Error: {}", e),
};
static ref PUBLIC_RSA_KEY: Vec<u8> = match read_file(&CONFIG.public_rsa_key()) {
Ok(key) => key,
Err(e) => panic!("Error loading public RSA Key.\n Error: {}", e),
};
}
pub fn encode_jwt<T: Serialize>(claims: &T) -> String {
match jsonwebtoken::encode(&JWT_HEADER, claims, &PRIVATE_RSA_KEY) {
Ok(token) => token,
Err(e) => panic!("Error encoding jwt {}", e),
}
}
fn decode_jwt<T: DeserializeOwned>(token: &str, issuer: String) -> Result<T, Error> {
let validation = jsonwebtoken::Validation {
leeway: 30, // 30 seconds
validate_exp: true,
validate_iat: false, // IssuedAt is the same as NotBefore
validate_nbf: true,
aud: None,
iss: Some(issuer),
sub: None,
algorithms: vec![JWT_ALGORITHM],
};
let token = token.replace(char::is_whitespace, "");
jsonwebtoken::decode(&token, &PUBLIC_RSA_KEY, &validation)
.map(|d| d.claims)
.map_res("Error decoding JWT")
}
pub fn decode_login(token: &str) -> Result<LoginJWTClaims, Error> {
decode_jwt(token, JWT_LOGIN_ISSUER.to_string())
}
pub fn decode_invite(token: &str) -> Result<InviteJWTClaims, Error> {
decode_jwt(token, JWT_INVITE_ISSUER.to_string())
}
pub fn decode_admin(token: &str) -> Result<AdminJWTClaims, Error> {
decode_jwt(token, JWT_ADMIN_ISSUER.to_string())
}
#[derive(Debug, Serialize, Deserialize)]
pub struct LoginJWTClaims {
// Not before
pub nbf: i64,
// Expiration time
pub exp: i64,
// Issuer
pub iss: String,
// Subject
pub sub: String,
pub premium: bool,
pub name: String,
pub email: String,
pub email_verified: bool,
pub orgowner: Vec<String>,
pub orgadmin: Vec<String>,
pub orguser: Vec<String>,
pub orgmanager: Vec<String>,
// user security_stamp
pub sstamp: String,
// device uuid
pub device: String,
// [ "api", "offline_access" ]
pub scope: Vec<String>,
// [ "Application" ]
pub amr: Vec<String>,
}
#[derive(Debug, Serialize, Deserialize)]
pub struct InviteJWTClaims {
// Not before
pub nbf: i64,
// Expiration time
pub exp: i64,
// Issuer
pub iss: String,
// Subject
pub sub: String,
pub email: String,
pub org_id: Option<String>,
pub user_org_id: Option<String>,
pub invited_by_email: Option<String>,
}
pub fn generate_invite_claims(
uuid: String,
email: String,
org_id: Option<String>,
org_user_id: Option<String>,
invited_by_email: Option<String>,
) -> InviteJWTClaims {
let time_now = Utc::now().naive_utc();
InviteJWTClaims {
nbf: time_now.timestamp(),
exp: (time_now + Duration::days(5)).timestamp(),
iss: JWT_INVITE_ISSUER.to_string(),
sub: uuid.clone(),
email: email.clone(),
org_id: org_id.clone(),
user_org_id: org_user_id.clone(),
invited_by_email: invited_by_email.clone(),
}
}
#[derive(Debug, Serialize, Deserialize)]
pub struct AdminJWTClaims {
// Not before
pub nbf: i64,
// Expiration time
pub exp: i64,
// Issuer
pub iss: String,
// Subject
pub sub: String,
}
pub fn generate_admin_claims() -> AdminJWTClaims {
let time_now = Utc::now().naive_utc();
AdminJWTClaims {
nbf: time_now.timestamp(),
exp: (time_now + Duration::minutes(20)).timestamp(),
iss: JWT_ADMIN_ISSUER.to_string(),
sub: "admin_panel".to_string(),
}
}
//
// Bearer token authentication
//
use rocket::request::{self, FromRequest, Request};
use rocket::Outcome;
use crate::db::models::{Device, User, UserOrgStatus, UserOrgType, UserOrganization};
use crate::db::DbConn;
pub struct Headers {
pub host: String,
pub device: Device,
pub user: User,
}
impl<'a, 'r> FromRequest<'a, 'r> for Headers {
type Error = &'static str;
fn from_request(request: &'a Request<'r>) -> request::Outcome<Self, Self::Error> {
let headers = request.headers();
// Get host
let host = if CONFIG.domain_set() {
CONFIG.domain()
} else if let Some(referer) = headers.get_one("Referer") {
referer.to_string()
} else {
// Try to guess from the headers
use std::env;
let protocol = if let Some(proto) = headers.get_one("X-Forwarded-Proto") {
proto
} else if env::var("ROCKET_TLS").is_ok() {
"https"
} else {
"http"
};
let host = if let Some(host) = headers.get_one("X-Forwarded-Host") {
host
} else if let Some(host) = headers.get_one("Host") {
host
} else {
""
};
format!("{}://{}", protocol, host)
};
// Get access_token
let access_token: &str = match headers.get_one("Authorization") {
Some(a) => match a.rsplit("Bearer ").next() {
Some(split) => split,
None => err_handler!("No access token provided"),
},
None => err_handler!("No access token provided"),
};
// Check JWT token is valid and get device and user from it
let claims = match decode_login(access_token) {
Ok(claims) => claims,
Err(_) => err_handler!("Invalid claim"),
};
let device_uuid = claims.device;
let user_uuid = claims.sub;
let conn = match request.guard::<DbConn>() {
Outcome::Success(conn) => conn,
_ => err_handler!("Error getting DB"),
};
let device = match Device::find_by_uuid(&device_uuid, &conn) {
Some(device) => device,
None => err_handler!("Invalid device id"),
};
let user = match User::find_by_uuid(&user_uuid, &conn) {
Some(user) => user,
None => err_handler!("Device has no user associated"),
};
if user.security_stamp != claims.sstamp {
err_handler!("Invalid security stamp")
}
Outcome::Success(Headers { host, device, user })
}
}
pub struct OrgHeaders {
pub host: String,
pub device: Device,
pub user: User,
pub org_user_type: UserOrgType,
}
impl<'a, 'r> FromRequest<'a, 'r> for OrgHeaders {
type Error = &'static str;
fn from_request(request: &'a Request<'r>) -> request::Outcome<Self, Self::Error> {
match request.guard::<Headers>() {
Outcome::Forward(_) => Outcome::Forward(()),
Outcome::Failure(f) => Outcome::Failure(f),
Outcome::Success(headers) => {
// org_id is expected to be the second param ("/organizations/<org_id>")
match request.get_param::<String>(1) {
Some(Ok(org_id)) => {
let conn = match request.guard::<DbConn>() {
Outcome::Success(conn) => conn,
_ => err_handler!("Error getting DB"),
};
let user = headers.user;
let org_user = match UserOrganization::find_by_user_and_org(&user.uuid, &org_id, &conn) {
Some(user) => {
if user.status == UserOrgStatus::Confirmed as i32 {
user
} else {
err_handler!("The current user isn't confirmed member of the organization")
}
}
None => err_handler!("The current user isn't member of the organization"),
};
Outcome::Success(Self {
host: headers.host,
device: headers.device,
user,
org_user_type: {
if let Some(org_usr_type) = UserOrgType::from_i32(org_user.type_) {
org_usr_type
} else {
// This should only happen if the DB is corrupted
err_handler!("Unknown user type in the database")
}
},
})
}
_ => err_handler!("Error getting the organization id"),
}
}
}
}
}
pub struct AdminHeaders {
pub host: String,
pub device: Device,
pub user: User,
pub org_user_type: UserOrgType,
}
impl<'a, 'r> FromRequest<'a, 'r> for AdminHeaders {
type Error = &'static str;
fn from_request(request: &'a Request<'r>) -> request::Outcome<Self, Self::Error> {
match request.guard::<OrgHeaders>() {
Outcome::Forward(_) => Outcome::Forward(()),
Outcome::Failure(f) => Outcome::Failure(f),
Outcome::Success(headers) => {
if headers.org_user_type >= UserOrgType::Admin {
Outcome::Success(Self {
host: headers.host,
device: headers.device,
user: headers.user,
org_user_type: headers.org_user_type,
})
} else {
err_handler!("You need to be Admin or Owner to call this endpoint")
}
}
}
}
}
pub struct OwnerHeaders {
pub host: String,
pub device: Device,
pub user: User,
}
impl<'a, 'r> FromRequest<'a, 'r> for OwnerHeaders {
type Error = &'static str;
fn from_request(request: &'a Request<'r>) -> request::Outcome<Self, Self::Error> {
match request.guard::<OrgHeaders>() {
Outcome::Forward(_) => Outcome::Forward(()),
Outcome::Failure(f) => Outcome::Failure(f),
Outcome::Success(headers) => {
if headers.org_user_type == UserOrgType::Owner {
Outcome::Success(Self {
host: headers.host,
device: headers.device,
user: headers.user,
})
} else {
err_handler!("You need to be Owner to call this endpoint")
}
}
}
}
}
//
// Client IP address detection
//
use std::net::IpAddr;
pub struct ClientIp {
pub ip: IpAddr,
}
impl<'a, 'r> FromRequest<'a, 'r> for ClientIp {
type Error = ();
fn from_request(request: &'a Request<'r>) -> request::Outcome<Self, Self::Error> {
let ip = match request.client_ip() {
Some(addr) => addr,
None => "0.0.0.0".parse().unwrap(),
};
Outcome::Success(ClientIp { ip })
}
}