errors.rs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
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 { AmbiguousPageTitle(PathBuf), FromConfigCrate(config::ConfigError), FromRegexCrate(regex::Error), FromStdIo(io::Error), FromTeraCrate(tera::Error), InvalidPort(num::TryFromIntError), MissingPageTitle(PathBuf), PageNotFound(String), } impl fmt::Display for Error { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { use Error::*; match *self { AmbiguousPageTitle(ref pathbuf) => write!(f, "Page title is ambiguous (there must be exactly one `#` heading): {}", pathbuf.display()), FromConfigCrate(ref e) => write!(f, "Error from the config crate: {}", e), FromRegexCrate(ref e) => write!(f, "Error from the regex 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), MissingPageTitle(ref pathbuf) => write!(f, "Page does not have a title: {}", pathbuf.display()), PageNotFound(ref path) => write!(f, "Page not found: {}", path), } } } impl From<config::ConfigError> for Error { fn from(e: config::ConfigError) -> Error { Error::FromConfigCrate(e) } } impl From<regex::Error> for Error { fn from(e: regex::Error) -> Error { Error::FromRegexCrate(e) } } impl From<io::Error> for Error { fn from(e: io::Error) -> Error { Error::FromStdIo(e) } } impl From<tera::Error> for Error { fn from(e: tera::Error) -> Error { Error::FromTeraCrate(e) } } impl IntoResponse for Error { fn into_response(self) -> Response { use Error::*; tracing::error!("{}", self); let (http_status_code, message) = match self { PageNotFound(..) => (StatusCode::NOT_FOUND, "Page not found"), _ => (StatusCode::INTERNAL_SERVER_ERROR, "The server encountered an unexpected error"), }; (http_status_code, message).into_response() } }