Files
proxy-scraper-checker/src/raw_config.rs
T
2025-08-04 13:33:06 +03:00

141 lines
3.6 KiB
Rust

use std::{
collections::HashSet,
env,
num::NonZero,
path::{Path, PathBuf},
};
use color_eyre::eyre::WrapErr as _;
use serde::{Deserialize, Deserializer};
use crate::utils::is_http_url;
fn validate_positive_f64<'de, D: Deserializer<'de>>(
deserializer: D,
) -> Result<f64, D::Error> {
let val = f64::deserialize(deserializer)?;
if val > 0.0 {
Ok(val)
} else {
Err(serde::de::Error::custom("value must be positive"))
}
}
fn validate_http_url<'de, D: Deserializer<'de>>(
deserializer: D,
) -> Result<String, D::Error> {
let s = String::deserialize(deserializer)?;
if s.is_empty() || is_http_url(&s) {
Ok(s)
} else {
Err(serde::de::Error::custom(format!(
"'{s}' is not a valid 'http' or 'https' url"
)))
}
}
#[derive(Deserialize)]
pub struct ScrapingProtocolConfig {
pub enabled: bool,
pub urls: HashSet<String>,
}
#[derive(Deserialize)]
pub struct ScrapingConfig {
pub max_proxies_per_source: usize,
#[serde(deserialize_with = "validate_positive_f64")]
pub timeout: f64,
#[serde(deserialize_with = "validate_positive_f64")]
pub connect_timeout: f64,
pub user_agent: String,
pub http: ScrapingProtocolConfig,
pub socks4: ScrapingProtocolConfig,
pub socks5: ScrapingProtocolConfig,
}
#[derive(Deserialize)]
pub struct CheckingConfig {
#[serde(deserialize_with = "validate_http_url")]
pub check_url: String,
pub max_concurrent_checks: NonZero<usize>,
#[serde(deserialize_with = "validate_positive_f64")]
pub timeout: f64,
#[serde(deserialize_with = "validate_positive_f64")]
pub connect_timeout: f64,
pub user_agent: String,
}
#[derive(Deserialize)]
pub struct TxtOutputConfig {
pub enabled: bool,
}
#[derive(Deserialize)]
pub struct JsonOutputConfig {
pub enabled: bool,
pub include_asn: bool,
pub include_geolocation: bool,
}
pub struct OutputConfig {
pub path: PathBuf,
pub sort_by_speed: bool,
pub txt: TxtOutputConfig,
pub json: JsonOutputConfig,
}
#[derive(Deserialize)]
pub struct RawConfig {
pub debug: bool,
pub scraping: ScrapingConfig,
pub checking: CheckingConfig,
pub output: OutputConfig,
}
#[expect(clippy::missing_trait_methods)]
impl<'de> Deserialize<'de> for OutputConfig {
fn deserialize<D: Deserializer<'de>>(
deserializer: D,
) -> Result<Self, D::Error> {
#[derive(Deserialize)]
struct InnerOutputConfig {
pub path: PathBuf,
pub sort_by_speed: bool,
pub txt: TxtOutputConfig,
pub json: JsonOutputConfig,
}
let inner = InnerOutputConfig::deserialize(deserializer)?;
if !inner.json.enabled && !inner.txt.enabled {
return Err(serde::de::Error::custom(
"at least one of 'output.json' or 'output.txt' must be \
enabled in config",
));
}
Ok(Self {
path: inner.path,
sort_by_speed: inner.sort_by_speed,
txt: inner.txt,
json: inner.json,
})
}
}
const CONFIG_ENV: &str = "PROXY_SCRAPER_CHECKER_CONFIG";
pub fn get_config_path() -> String {
env::var(CONFIG_ENV).unwrap_or_else(|_| "config.toml".to_owned())
}
pub async fn read_config(path: &Path) -> color_eyre::Result<RawConfig> {
let raw_config =
tokio::fs::read_to_string(path).await.wrap_err_with(move || {
format!("failed to read {} to string", path.display())
})?;
toml::from_str(&raw_config).wrap_err_with(move || {
format!("failed to parse {} as TOML config file", path.display())
})
}