spars_httpd/
settings.rs

1// SPDX-FileCopyrightText: 2025 Cullen Walsh <ckwalsh@cullenwalsh.com>
2// SPDX-License-Identifier: MIT OR Apache-2.0
3
4use std::env::VarError;
5use std::net::AddrParseError;
6use std::num::ParseIntError;
7use std::str::ParseBoolError;
8
9use thiserror::Error;
10
11mod handler;
12mod server;
13
14pub use handler::*;
15pub use server::*;
16
17#[derive(Default)]
18pub struct Settings {
19    pub server: ServerSettings,
20    pub handler: HandlerSettings,
21}
22
23#[derive(Debug, Error)]
24pub enum SettingsFromEnvError {
25    #[error("VarError while reading `{0}`: {1}")]
26    VarError(&'static str, VarError),
27
28    #[error("Bad file path: {0}")]
29    BadFilePath(std::io::Error),
30
31    #[error("Bad bind address: {0}")]
32    BadAddr(AddrParseError),
33
34    #[error("Bad port: {0}")]
35    BadPort(ParseIntError),
36
37    #[error("Root is not a directory")]
38    RootNotADirectory,
39
40    #[error("Bad allow hidden value: {0}")]
41    BadAllowHidden(ParseBoolError),
42}
43
44type Result<T, E = SettingsFromEnvError> = std::result::Result<T, E>;
45
46impl Settings {
47    pub fn from_env() -> Result<Self> {
48        Ok(Self {
49            server: ServerSettings::from_env()?,
50            handler: HandlerSettings::from_env()?,
51        })
52    }
53}
54
55fn env(key: &'static str) -> Result<Option<String>> {
56    match std::env::var(key) {
57        Ok(s) => Ok(Some(s)),
58        Err(VarError::NotPresent) => Ok(None),
59        Err(e) => Err(super::SettingsFromEnvError::VarError(key, e)),
60    }
61}
spars_httpd/settings.rs

spars_httpd/
settings.rs
