errors.rs
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use axum::http::{ StatusCode };
use axum::response::{ IntoResponse, Response };
pub type Result<T> = ::std::result::Result<T, Error>;
#[derive(Debug)]
pub enum Error {
AuthenticationFailed,
FromKdl(kdl::KdlError),
FromMinijinja(minijinja::Error),
FromPasswordHash(password_hash::Error),
FromSerdeJson(serde_json::Error),
FromStdIo(std::io::Error),
FromTowerSessions(tower_sessions::session::Error),
FromTracingSubscriber(TracingSubscriberError),
NoHomeDirectoryAvailable,
PermissionDenied,
PageAlreadyExists(String),
PageNotFound(String),
UserAlreadyExists(String),
}
impl IntoResponse for Error {
fn into_response(self) -> Response {
tracing::error!("{}", self);
let (status, message) = match self {
Error::AuthenticationFailed => (StatusCode::FORBIDDEN, "Authentication failed."),
Error::PermissionDenied => (StatusCode::FORBIDDEN, "Permission denied."),
Error::PageAlreadyExists(_) => (StatusCode::BAD_REQUEST, "Page already exists."),
Error::PageNotFound(_) => (StatusCode::NOT_FOUND, "Page not found."),
Error::UserAlreadyExists(_) => (StatusCode::BAD_REQUEST, "User already exists."),
_ => (StatusCode::INTERNAL_SERVER_ERROR, "The server encountered an unexpected error."),
};
(status, message).into_response()
}
}
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
match *self {
Error::AuthenticationFailed => write!(f, "Authentication failed"),
Error::FromKdl(ref e) => write!(f, "{}", e),
Error::FromMinijinja(ref e) => write!(f, "{}", e),
Error::FromPasswordHash(ref e) => write!(f, "{}", e),
Error::FromSerdeJson(ref e) => write!(f, "{}", e),
Error::FromStdIo(ref e) => write!(f, "{}", e),
Error::FromTowerSessions(ref e) => write!(f, "{}", e),
Error::FromTracingSubscriber(ref e) => write!(f, "{}", e),
Error::NoHomeDirectoryAvailable => write!(f, "No home directory available"),
Error::PermissionDenied => write!(f, "Permission denied"),
Error::PageAlreadyExists(ref slug) => write!(f, "Page already exists: {}", slug),
Error::PageNotFound(ref slug) => write!(f, "Page not found: {}", slug),
Error::UserAlreadyExists(ref username) => write!(f, "User already exists: {}", username),
}
}
}
impl std::error::Error for Error {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
match *self {
Error::FromKdl(ref e) => Some(e),
Error::FromMinijinja(ref e) => Some(e),
Error::FromPasswordHash(ref e) => Some(e),
Error::FromSerdeJson(ref e) => Some(e),
Error::FromStdIo(ref e) => Some(e),
Error::FromTowerSessions(ref e) => Some(e),
Error::FromTracingSubscriber(ref e) => Some(e),
_ => None,
}
}
}
impl From<kdl::KdlError> for Error {
fn from(e: kdl::KdlError) -> Error {
Error::FromKdl(e)
}
}
impl From<minijinja::Error> for Error {
fn from(e: minijinja::Error) -> Error {
Error::FromMinijinja(e)
}
}
impl From<password_hash::Error> for Error {
fn from(e: password_hash::Error) -> Error {
Error::FromPasswordHash(e)
}
}
impl From<serde_json::Error> for Error {
fn from(e: serde_json::Error) -> Error {
Error::FromSerdeJson(e)
}
}
impl From<std::io::Error> for Error {
fn from(e: std::io::Error) -> Error {
Error::FromStdIo(e)
}
}
impl From<tower_sessions::session::Error> for Error {
fn from(e: tower_sessions::session::Error) -> Error {
Error::FromTowerSessions(e)
}
}
impl From<tracing_subscriber::filter::FromEnvError> for Error {
fn from(e: tracing_subscriber::filter::FromEnvError) -> Error {
Error::FromTracingSubscriber(TracingSubscriberError::FromEnvError(e))
}
}
impl From<tracing_subscriber::filter::ParseError> for Error {
fn from(e: tracing_subscriber::filter::ParseError) -> Error {
Error::FromTracingSubscriber(TracingSubscriberError::ParseError(e))
}
}
impl From<tracing_subscriber::reload::Error> for Error {
fn from(e: tracing_subscriber::reload::Error) -> Error {
Error::FromTracingSubscriber(TracingSubscriberError::ReloadError(e))
}
}
#[derive(Debug)]
#[allow(clippy::enum_variant_names)]
pub enum TracingSubscriberError {
FromEnvError(tracing_subscriber::filter::FromEnvError),
ParseError(tracing_subscriber::filter::ParseError),
ReloadError(tracing_subscriber::reload::Error),
}
impl std::fmt::Display for TracingSubscriberError {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
match *self {
TracingSubscriberError::FromEnvError(ref e) => write!(f, "{}", e),
TracingSubscriberError::ParseError(ref e) => write!(f, "{}", e),
TracingSubscriberError::ReloadError(ref e) => write!(f, "{}", e),
}
}
}
impl std::error::Error for TracingSubscriberError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
match *self {
TracingSubscriberError::FromEnvError(ref e) => Some(e),
TracingSubscriberError::ParseError(ref e) => Some(e),
TracingSubscriberError::ReloadError(ref e) => Some(e),
}
}
}