librepages/src/settings.rs

136 lines
4 KiB
Rust

/*
* Copyright (C) 2022 Aravinth Manivannan <realaravinth@batsense.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use std::env;
use std::path::Path;
use std::sync::Arc;
use config::{Config, Environment, File};
#[cfg(not(test))]
use log::{error, warn};
#[cfg(test)]
use std::{println as warn, println as error};
use serde::Deserialize;
use url::Url;
use crate::errors::*;
use crate::page::Page;
#[derive(Debug, Clone, Deserialize)]
pub struct Server {
pub port: u32,
pub ip: String,
pub workers: Option<usize>,
}
impl Server {
#[cfg(not(tarpaulin_include))]
pub fn get_ip(&self) -> String {
format!("{}:{}", self.ip, self.port)
}
}
#[derive(Debug, Clone, Deserialize)]
pub struct Settings {
pub server: Server,
pub source_code: String,
pub pages: Vec<Arc<Page>>,
}
#[cfg(not(tarpaulin_include))]
impl Settings {
pub fn new() -> ServiceResult<Self> {
let mut s = Config::builder();
const CURRENT_DIR: &str = "./config/default.toml";
const ETC: &str = "/etc/static-pages/config.toml";
let mut read_file = false;
if Path::new(ETC).exists() {
s = s.add_source(File::with_name(ETC));
read_file = true;
}
if Path::new(CURRENT_DIR).exists() {
// merging default config from file
s = s.add_source(File::with_name(CURRENT_DIR));
read_file = true;
}
if let Ok(path) = env::var("PAGES_CONFIG") {
s = s.add_source(File::with_name(&path));
read_file = true;
}
if !read_file {
warn!("configuration file not found");
}
s = s.add_source(Environment::with_prefix("PAGES").separator("__"));
let mut settings = s.build()?.try_deserialize::<Settings>()?;
settings.check_url();
match env::var("PORT") {
Ok(val) => {
settings.server.port = val.parse().unwrap();
}
Err(e) => warn!("couldn't interpret PORT: {}", e),
}
settings.init();
Ok(settings)
}
pub fn init(&self) {
for (index, page) in self.pages.iter().enumerate() {
Url::parse(&page.repo).unwrap();
let path = Path::new(&page.path);
if path.exists() && path.is_file() {
panic!("Path is a file, should be a directory: {:?}", page);
}
if !path.exists() {
std::fs::create_dir_all(&path).unwrap();
}
for (index2, page2) in self.pages.iter().enumerate() {
if index2 == index {
continue;
}
if page.secret == page2.secret {
error!("{}", ServiceError::SecretTaken(page.clone(), page2.clone()));
} else if page.repo == page2.repo {
error!(
"{}",
ServiceError::DuplicateRepositoryURL(page.clone(), page2.clone(),)
);
} else if page.path == page2.path {
error!("{}", ServiceError::PathTaken(page.clone(), page2.clone()));
}
}
if let Err(e) = page.update() {
error!("{e}");
}
}
}
#[cfg(not(tarpaulin_include))]
fn check_url(&self) {
Url::parse(&self.source_code).expect("Please enter a URL for source_code in settings");
}
}