clash-verge/src-tauri/src/utils/fetch.rs
2021-12-19 14:07:13 +08:00

97 lines
2.6 KiB
Rust

use crate::config::{ProfileExtra, ProfileResponse};
use std::{
str::FromStr,
time::{SystemTime, UNIX_EPOCH},
};
/// parse the string
fn parse_string<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,
}
}
/// fetch and parse the profile
pub async fn fetch_profile(url: &str) -> Option<ProfileResponse> {
let resp = match reqwest::get(url).await {
Ok(res) => res,
Err(_) => return None,
};
let header = resp.headers();
// parse the Subscription Userinfo
let extra = {
let sub_info = match header.get("Subscription-Userinfo") {
Some(value) => value.to_str().unwrap_or(""),
None => "",
};
ProfileExtra {
upload: parse_string(sub_info, "upload=").unwrap_or(0),
download: parse_string(sub_info, "download=").unwrap_or(0),
total: parse_string(sub_info, "total=").unwrap_or(0),
expire: parse_string(sub_info, "expire=").unwrap_or(0),
}
};
// parse the `name` and `file`
let (name, file) = {
let now = SystemTime::now()
.duration_since(UNIX_EPOCH)
.unwrap()
.as_secs();
let file = format!("{}.yaml", now);
let name = header.get("Content-Disposition").unwrap().to_str().unwrap();
let name = parse_string::<String>(name, "filename=");
match name {
Some(f) => (f, file),
None => (file.clone(), file),
}
};
// get the data
let data = match resp.text_with_charset("utf-8").await {
Ok(d) => d,
Err(_) => return None,
};
Some(ProfileResponse {
file,
name,
data,
extra,
})
}
#[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_string::<usize>(test_1, "upload=").unwrap(), 111);
assert_eq!(parse_string::<usize>(test_1, "download=").unwrap(), 2222);
assert_eq!(parse_string::<usize>(test_1, "total=").unwrap(), 3333);
assert_eq!(parse_string::<usize>(test_1, "expire=").unwrap(), 444);
assert_eq!(
parse_string::<String>(test_2, "filename=").unwrap(),
format!("Clash.yaml")
);
assert_eq!(parse_string::<usize>(test_1, "aaa="), None);
assert_eq!(parse_string::<usize>(test_1, "upload1="), None);
assert_eq!(parse_string::<usize>(test_1, "expire1="), None);
assert_eq!(parse_string::<usize>(test_2, "attachment="), None);
}