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use std::env;
use std::path::Path;
use std::sync::Arc;
use config::{Config, ConfigError, Environment, File};
use derive_more::Display;
#[cfg(not(test))]
use log::{error, warn};
#[cfg(test)]
use std::{println as warn, println as error};
use serde::Deserialize;
use serde::Serialize;
use url::Url;
use crate::errors::*;
use crate::page::Page;
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Server {
pub port: u32,
pub ip: String,
pub workers: Option<usize>,
pub cookie_secret: String,
pub domain: String,
}
impl Server {
#[cfg(not(tarpaulin_include))]
pub fn get_ip(&self) -> String {
format!("{}:{}", self.ip, self.port)
}
}
#[derive(Deserialize, Serialize, Display, Eq, PartialEq, Clone, Debug)]
#[serde(rename_all = "lowercase")]
pub enum DBType {
#[display(fmt = "postgres")]
Postgres,
}
impl DBType {
fn from_url(url: &Url) -> Result<Self, ConfigError> {
match url.scheme() {
"postgres" => Ok(Self::Postgres),
_ => Err(ConfigError::Message("Unknown database type".into())),
}
}
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Database {
pub url: String,
pub pool: u32,
pub database_type: DBType,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Settings {
pub allow_registration: bool,
pub support_email: String,
pub debug: bool,
pub server: Server,
pub source_code: String,
pub pages: Vec<Arc<Page>>,
pub database: Database,
}
#[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() {
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("__"));
match env::var("PORT") {
Ok(val) => {
s = s.set_override("server.port", val).unwrap();
}
Err(e) => warn!("couldn't interpret PORT: {}", e),
}
if let Ok(val) = env::var("DATABASE_URL") {
let url = Url::parse(&val).expect("couldn't parse Database URL");
s = s.set_override("database.url", url.to_string()).unwrap();
let database_type = DBType::from_url(&url).unwrap();
s = s
.set_override("database.database_type", database_type.to_string())
.unwrap();
}
let intermediate_config = s.build_cloned().unwrap();
s = s
.set_override(
"database.url",
format!(
r"postgres://{}:{}@{}:{}/{}",
intermediate_config
.get::<String>("database.username")
.expect("Couldn't access database username"),
intermediate_config
.get::<String>("database.password")
.expect("Couldn't access database password"),
intermediate_config
.get::<String>("database.hostname")
.expect("Couldn't access database hostname"),
intermediate_config
.get::<String>("database.port")
.expect("Couldn't access database port"),
intermediate_config
.get::<String>("database.name")
.expect("Couldn't access database name")
),
)
.expect("Couldn't set database url");
let settings = s.build()?.try_deserialize::<Settings>()?;
settings.check_url();
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(&page.branch) {
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");
}
}