clash-verge/src-tauri/src/utils/help.rs
2022-03-11 19:50:51 +08:00

95 lines
2.4 KiB
Rust

use nanoid::nanoid;
use std::str::FromStr;
use std::time::{SystemTime, UNIX_EPOCH};
pub fn get_now() -> usize {
SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap()
.as_secs() as _
}
const ALPHABET: [char; 62] = [
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B',
'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
'V', 'W', 'X', 'Y', 'Z',
];
/// generate the uid
pub fn get_uid(prefix: &str) -> String {
let id = nanoid!(11, &ALPHABET);
format!("{prefix}{id}")
}
/// parse the string
/// xxx=123123; => 123123
pub fn parse_str<T: FromStr>(target: &str, key: &str) -> Option<T> {
match target.find(key) {
Some(idx) => {
let idx = idx + key.len();
let value = &target[idx..];
match match value.split(';').nth(0) {
Some(value) => value.trim().parse(),
None => value.trim().parse(),
} {
Ok(r) => Some(r),
Err(_) => None,
}
}
None => None,
}
}
#[macro_export]
macro_rules! log_if_err {
($result: expr) => {
if let Err(err) = $result {
log::error!("{err}");
}
};
}
/// wrap the anyhow error
/// transform the error to String
#[macro_export]
macro_rules! wrap_err {
($stat: expr) => {
match $stat {
Ok(a) => Ok(a),
Err(err) => {
log::error!("{}", err.to_string());
Err(format!("{}", err.to_string()))
}
}
};
}
/// return the string literal error
#[macro_export]
macro_rules! ret_err {
($str: expr) => {
return Err($str.into())
};
}
#[test]
fn test_parse_value() {
let test_1 = "upload=111; download=2222; total=3333; expire=444";
let test_2 = "attachment; filename=Clash.yaml";
assert_eq!(parse_str::<usize>(test_1, "upload=").unwrap(), 111);
assert_eq!(parse_str::<usize>(test_1, "download=").unwrap(), 2222);
assert_eq!(parse_str::<usize>(test_1, "total=").unwrap(), 3333);
assert_eq!(parse_str::<usize>(test_1, "expire=").unwrap(), 444);
assert_eq!(
parse_str::<String>(test_2, "filename=").unwrap(),
format!("Clash.yaml")
);
assert_eq!(parse_str::<usize>(test_1, "aaa="), None);
assert_eq!(parse_str::<usize>(test_1, "upload1="), None);
assert_eq!(parse_str::<usize>(test_1, "expire1="), None);
assert_eq!(parse_str::<usize>(test_2, "attachment="), None);
}