perseus/utils/path_prefix.rs
1/// Gets the path prefix to apply on the server. This uses the
2/// `PERSEUS_BASE_PATH` environment variable, which avoids hardcoding
3/// something as changeable as this into the final binary. Hence however, that
4/// variable must be the same as what's set in `<base>` (done automatically).
5/// Trailing forward slashes will be trimmed automatically.
6#[cfg(engine)]
7pub fn get_path_prefix_server() -> String {
8 use std::env;
9
10 let base_path = env::var("PERSEUS_BASE_PATH").unwrap_or_else(|_| "".to_string());
11 base_path
12 .strip_suffix('/')
13 .unwrap_or(&base_path)
14 .to_string()
15}
16
17/// Gets the path prefix to apply in the browser. This uses the HTML `<base>`
18/// element, which would be required anyway to make Sycamore's router co-operate
19/// with a relative path hosting.
20#[cfg(any(client, doc))]
21pub fn get_path_prefix_client() -> String {
22 use wasm_bindgen::JsCast;
23 use web_sys::{HtmlBaseElement, Url};
24
25 let base_path = match web_sys::window()
26 .unwrap()
27 .document()
28 .unwrap()
29 .query_selector("base[href]")
30 {
31 Ok(Some(base)) => {
32 let base = base.unchecked_into::<HtmlBaseElement>().href();
33
34 let url = Url::new(&base).unwrap();
35 url.pathname()
36 }
37 _ => "".to_string(),
38 };
39 // Strip any trailing slashes, a `//` makes the browser query `https://.perseus/...`
40 base_path
41 .strip_suffix('/')
42 .unwrap_or(&base_path)
43 .to_string()
44}