14c18dbdae
* allow specifying db uri in config file * succumb to a bug in doku See <https://github.com/anixe/doku/issues/33>.
111 lines
3.2 KiB
Rust
111 lines
3.2 KiB
Rust
use crate::{
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error::LemmyError,
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location_info,
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settings::structs::{PictrsConfig, Settings},
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};
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use anyhow::{anyhow, Context};
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use deser_hjson::from_str;
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use once_cell::sync::Lazy;
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use percent_encoding::{utf8_percent_encode, NON_ALPHANUMERIC};
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use regex::Regex;
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use std::{env, fs, io::Error};
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pub mod structs;
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use structs::DatabaseConnection;
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static DEFAULT_CONFIG_FILE: &str = "config/config.hjson";
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pub static SETTINGS: Lazy<Settings> = Lazy::new(|| {
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Settings::init().expect("Failed to load settings file, see documentation (https://join-lemmy.org/docs/en/administration/configuration.html)")
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});
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static WEBFINGER_REGEX: Lazy<Regex> = Lazy::new(|| {
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Regex::new(&format!(
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"^acct:([a-zA-Z0-9_]{{3,}})@{}$",
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SETTINGS.hostname
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))
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.expect("compile webfinger regex")
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});
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impl Settings {
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/// Reads config from configuration file.
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///
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/// Note: The env var `LEMMY_DATABASE_URL` is parsed in
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/// `lemmy_db_schema/src/lib.rs::get_database_url_from_env()`
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/// Warning: Only call this once.
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pub(crate) fn init() -> Result<Self, LemmyError> {
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// Read the config file
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let config = from_str::<Settings>(&Self::read_config_file()?)?;
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if config.hostname == "unset" {
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return Err(anyhow!("Hostname variable is not set!").into());
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}
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Ok(config)
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}
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pub fn get_database_url(&self) -> String {
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match &self.database.connection {
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DatabaseConnection::Uri { uri } => uri.clone(),
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DatabaseConnection::Parts(parts) => {
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format!(
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"postgres://{}:{}@{}:{}/{}",
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utf8_percent_encode(&parts.user, NON_ALPHANUMERIC),
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utf8_percent_encode(&parts.password, NON_ALPHANUMERIC),
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parts.host,
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parts.port,
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utf8_percent_encode(&parts.database, NON_ALPHANUMERIC),
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)
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}
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}
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}
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fn get_config_location() -> String {
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env::var("LEMMY_CONFIG_LOCATION").unwrap_or_else(|_| DEFAULT_CONFIG_FILE.to_string())
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}
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fn read_config_file() -> Result<String, Error> {
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fs::read_to_string(Self::get_config_location())
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}
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/// Returns either "http" or "https", depending on tls_enabled setting
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pub fn get_protocol_string(&self) -> &'static str {
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if self.tls_enabled {
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"https"
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} else {
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"http"
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}
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}
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/// Returns something like `http://localhost` or `https://lemmy.ml`,
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/// with the correct protocol and hostname.
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pub fn get_protocol_and_hostname(&self) -> String {
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format!("{}://{}", self.get_protocol_string(), self.hostname)
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}
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/// When running the federation test setup in `api_tests/` or `docker/federation`, the `hostname`
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/// variable will be like `lemmy-alpha:8541`. This method removes the port and returns
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/// `lemmy-alpha` instead. It has no effect in production.
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pub fn get_hostname_without_port(&self) -> Result<String, anyhow::Error> {
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Ok(
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(*self
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.hostname
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.split(':')
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.collect::<Vec<&str>>()
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.first()
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.context(location_info!())?)
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.to_string(),
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)
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}
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pub fn webfinger_regex(&self) -> Regex {
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WEBFINGER_REGEX.clone()
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}
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pub fn pictrs_config(&self) -> Result<PictrsConfig, LemmyError> {
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self
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.pictrs
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.clone()
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.ok_or_else(|| anyhow!("images_disabled").into())
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}
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}
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