errors.rs
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use axum::http::{ StatusCode };
use axum::response::{ IntoResponse, Response };
use std::fmt;
use std::io;
use std::num;
use std::path::{ PathBuf };
pub type Result<T> = std::result::Result<T, Error>;
pub(crate) enum Error {
FromConfigCrate(config::ConfigError),
FromMailSendCrate(mail_send::Error),
FromSerdeJsonCrate(serde_json::Error),
FromStdIo(io::Error),
FromTeraCrate(tera::Error),
InvalidPort(num::TryFromIntError),
ListNotFound(String),
MissingContactEmail,
MissingFormField(String),
PageNotFound(String),
PostNotFound(String),
PathContainsInvalidUtf8(PathBuf),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
use Error::*;
match *self {
FromConfigCrate(ref e) => write!(f, "Error from the config crate: {}", e),
FromMailSendCrate(ref e) => write!(f, "Error from the mail_send crate: {}", e),
FromSerdeJsonCrate(ref e) => write!(f, "Error from the serde_json crate: {}", e),
FromStdIo(ref e) => write!(f, "IO error: {}", e),
FromTeraCrate(ref e) => write!(f, "Error from the tera crate: {}", e),
InvalidPort(ref e) => write!(f, "Invalid network.port: {}", e),
MissingContactEmail => write!(f, "Missing contact email"),
ListNotFound(ref slug) => write!(f, "List not found: {}", slug),
MissingFormField(ref field) => write!(f, "Missing form field: {}", field),
PageNotFound(ref slug) => write!(f, "Page not found: {}", slug),
PostNotFound(ref slug) => write!(f, "Post not found: {}", slug),
PathContainsInvalidUtf8(ref pathbuf) => write!(f, "Path contains invalid UTF-8: {}", pathbuf.display()),
}
}
}
impl From<config::ConfigError> for Error {
fn from(e: config::ConfigError) -> Error {
tracing::debug!("Error::FromConfigCrate: {:?}", e);
Error::FromConfigCrate(e)
}
}
impl From<mail_send::Error> for Error {
fn from(e: mail_send::Error) -> Error {
tracing::debug!("Error::FromMailSendCrate: {:?}", e);
Error::FromMailSendCrate(e)
}
}
impl From<serde_json::Error> for Error {
fn from(e: serde_json::Error) -> Error {
tracing::debug!("Error::FromSerdeJsonCrate: {:?}", e);
Error::FromSerdeJsonCrate(e)
}
}
impl From<io::Error> for Error {
fn from(e: io::Error) -> Error {
tracing::debug!("Error::FromStdIo: {:?}", e);
Error::FromStdIo(e)
}
}
impl From<tera::Error> for Error {
fn from(e: tera::Error) -> Error {
tracing::debug!("Error::FromTeraCrate: {:?}", e);
Error::FromTeraCrate(e)
}
}
impl IntoResponse for Error {
fn into_response(self) -> Response {
use Error::*;
tracing::error!("Building response for error \"{}\"", self);
let (http_status_code, message) = match self {
ListNotFound(..) => (StatusCode::NOT_FOUND, "List not found"),
MissingFormField(..) => (StatusCode::BAD_REQUEST, "Missing form field"),
PageNotFound(..) => (StatusCode::NOT_FOUND, "Page not found"),
PostNotFound(..) => (StatusCode::NOT_FOUND, "Post not found"),
_ => (StatusCode::INTERNAL_SERVER_ERROR, "The server encountered an unexpected error"),
};
(http_status_code, message).into_response()
}
}