mirror of
https://github.com/dani-garcia/vaultwarden.git
synced 2024-12-11 09:22:55 +01:00
265 lines
8.3 KiB
Rust
265 lines
8.3 KiB
Rust
//
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// Error generator macro
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//
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use std::error::Error as StdError;
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macro_rules! make_error {
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( $( $name:ident ( $ty:ty ): $src_fn:expr, $usr_msg_fun:expr ),+ $(,)? ) => {
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const BAD_REQUEST: u16 = 400;
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pub enum ErrorKind { $($name( $ty )),+ }
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pub struct Error { message: String, error: ErrorKind, error_code: u16 }
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$(impl From<$ty> for Error {
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fn from(err: $ty) -> Self { Error::from((stringify!($name), err)) }
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})+
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$(impl<S: Into<String>> From<(S, $ty)> for Error {
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fn from(val: (S, $ty)) -> Self {
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Error { message: val.0.into(), error: ErrorKind::$name(val.1), error_code: BAD_REQUEST }
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}
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})+
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impl StdError for Error {
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fn source(&self) -> Option<&(dyn StdError + 'static)> {
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match &self.error {$( ErrorKind::$name(e) => $src_fn(e), )+}
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}
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}
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impl std::fmt::Display for Error {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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match &self.error {$(
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ErrorKind::$name(e) => f.write_str(&$usr_msg_fun(e, &self.message)),
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)+}
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}
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}
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};
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}
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use diesel::r2d2::PoolError as R2d2Err;
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use diesel::result::Error as DieselErr;
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use diesel::ConnectionError as DieselConErr;
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use diesel_migrations::RunMigrationsError as DieselMigErr;
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use handlebars::RenderError as HbErr;
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use jsonwebtoken::errors::Error as JwtErr;
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use regex::Error as RegexErr;
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use reqwest::Error as ReqErr;
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use serde_json::{Error as SerdeErr, Value};
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use std::io::Error as IoErr;
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use std::time::SystemTimeError as TimeErr;
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use u2f::u2ferror::U2fError as U2fErr;
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use yubico::yubicoerror::YubicoError as YubiErr;
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use lettre::address::AddressError as AddrErr;
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use lettre::error::Error as LettreErr;
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use lettre::message::mime::FromStrError as FromStrErr;
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use lettre::transport::smtp::Error as SmtpErr;
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#[derive(Serialize)]
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pub struct Empty {}
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// Error struct
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// Contains a String error message, meant for the user and an enum variant, with an error of different types.
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//
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// After the variant itself, there are two expressions. The first one indicates whether the error contains a source error (that we pretty print).
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// The second one contains the function used to obtain the response sent to the client
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make_error! {
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// Just an empty error
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EmptyError(Empty): _no_source, _serialize,
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// Used to represent err! calls
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SimpleError(String): _no_source, _api_error,
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// Used for special return values, like 2FA errors
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JsonError(Value): _no_source, _serialize,
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DbError(DieselErr): _has_source, _api_error,
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R2d2Error(R2d2Err): _has_source, _api_error,
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U2fError(U2fErr): _has_source, _api_error,
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SerdeError(SerdeErr): _has_source, _api_error,
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JWtError(JwtErr): _has_source, _api_error,
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TemplError(HbErr): _has_source, _api_error,
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//WsError(ws::Error): _has_source, _api_error,
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IoError(IoErr): _has_source, _api_error,
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TimeError(TimeErr): _has_source, _api_error,
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ReqError(ReqErr): _has_source, _api_error,
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RegexError(RegexErr): _has_source, _api_error,
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YubiError(YubiErr): _has_source, _api_error,
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LettreError(LettreErr): _has_source, _api_error,
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AddressError(AddrErr): _has_source, _api_error,
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SmtpError(SmtpErr): _has_source, _api_error,
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FromStrError(FromStrErr): _has_source, _api_error,
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DieselConError(DieselConErr): _has_source, _api_error,
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DieselMigError(DieselMigErr): _has_source, _api_error,
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}
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impl std::fmt::Debug for Error {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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match self.source() {
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Some(e) => write!(f, "{}.\n[CAUSE] {:#?}", self.message, e),
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None => match self.error {
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ErrorKind::EmptyError(_) => Ok(()),
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ErrorKind::SimpleError(ref s) => {
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if &self.message == s {
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write!(f, "{}", self.message)
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} else {
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write!(f, "{}. {}", self.message, s)
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}
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}
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ErrorKind::JsonError(_) => write!(f, "{}", self.message),
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_ => unreachable!(),
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},
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}
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}
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}
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impl Error {
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pub fn new<M: Into<String>, N: Into<String>>(usr_msg: M, log_msg: N) -> Self {
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(usr_msg, log_msg.into()).into()
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}
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pub fn empty() -> Self {
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Empty {}.into()
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}
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pub fn with_msg<M: Into<String>>(mut self, msg: M) -> Self {
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self.message = msg.into();
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self
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}
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pub const fn with_code(mut self, code: u16) -> Self {
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self.error_code = code;
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self
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}
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}
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pub trait MapResult<S> {
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fn map_res(self, msg: &str) -> Result<S, Error>;
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}
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impl<S, E: Into<Error>> MapResult<S> for Result<S, E> {
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fn map_res(self, msg: &str) -> Result<S, Error> {
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self.map_err(|e| e.into().with_msg(msg))
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}
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}
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impl<E: Into<Error>> MapResult<()> for Result<usize, E> {
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fn map_res(self, msg: &str) -> Result<(), Error> {
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self.and(Ok(())).map_res(msg)
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}
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}
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impl<S> MapResult<S> for Option<S> {
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fn map_res(self, msg: &str) -> Result<S, Error> {
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self.ok_or_else(|| Error::new(msg, ""))
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}
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}
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#[allow(clippy::unnecessary_wraps)]
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const fn _has_source<T>(e: T) -> Option<T> {
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Some(e)
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}
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fn _no_source<T, S>(_: T) -> Option<S> {
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None
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}
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fn _serialize(e: &impl serde::Serialize, _msg: &str) -> String {
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serde_json::to_string(e).unwrap()
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}
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fn _api_error(_: &impl std::any::Any, msg: &str) -> String {
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let json = json!({
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"Message": "",
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"error": "",
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"error_description": "",
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"ValidationErrors": {"": [ msg ]},
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"ErrorModel": {
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"Message": msg,
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"Object": "error"
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},
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"Object": "error"
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});
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_serialize(&json, "")
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}
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//
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// Rocket responder impl
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//
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use std::io::Cursor;
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use rocket::http::{ContentType, Status};
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use rocket::request::Request;
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use rocket::response::{self, Responder, Response};
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impl<'r> Responder<'r> for Error {
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fn respond_to(self, _: &Request) -> response::Result<'r> {
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match self.error {
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ErrorKind::EmptyError(_) => {} // Don't print the error in this situation
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ErrorKind::SimpleError(_) => {} // Don't print the error in this situation
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_ => error!(target: "error", "{:#?}", self),
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};
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let code = Status::from_code(self.error_code).unwrap_or(Status::BadRequest);
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Response::build()
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.status(code)
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.header(ContentType::JSON)
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.sized_body(Cursor::new(format!("{}", self)))
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.ok()
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}
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}
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//
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// Error return macros
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//
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#[macro_export]
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macro_rules! err {
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($msg:expr) => {{
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error!("{}", $msg);
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return Err(crate::error::Error::new($msg, $msg));
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}};
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($usr_msg:expr, $log_value:expr) => {{
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error!("{}. {}", $usr_msg, $log_value);
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return Err(crate::error::Error::new($usr_msg, $log_value));
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}};
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}
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#[macro_export]
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macro_rules! err_code {
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($msg:expr, $err_code: literal) => {{
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error!("{}", $msg);
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return Err(crate::error::Error::new($msg, $msg).with_code($err_code));
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}};
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($usr_msg:expr, $log_value:expr, $err_code: literal) => {{
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error!("{}. {}", $usr_msg, $log_value);
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return Err(crate::error::Error::new($usr_msg, $log_value).with_code($err_code));
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}};
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}
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#[macro_export]
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macro_rules! err_discard {
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($msg:expr, $data:expr) => {{
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std::io::copy(&mut $data.open(), &mut std::io::sink()).ok();
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return Err(crate::error::Error::new($msg, $msg));
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}};
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($usr_msg:expr, $log_value:expr, $data:expr) => {{
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std::io::copy(&mut $data.open(), &mut std::io::sink()).ok();
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return Err(crate::error::Error::new($usr_msg, $log_value));
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}};
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}
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#[macro_export]
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macro_rules! err_json {
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($expr:expr, $log_value:expr) => {{
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return Err(($log_value, $expr).into());
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}};
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}
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#[macro_export]
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macro_rules! err_handler {
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($expr:expr) => {{
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error!(target: "auth", "Unauthorized Error: {}", $expr);
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return ::rocket::request::Outcome::Failure((rocket::http::Status::Unauthorized, $expr));
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}};
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($usr_msg:expr, $log_value:expr) => {{
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error!(target: "auth", "Unauthorized Error: {}. {}", $usr_msg, $log_value);
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return ::rocket::request::Outcome::Failure((rocket::http::Status::Unauthorized, $usr_msg));
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}};
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}
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