lariv-rs 0.1.0

Compile-time plugin web application framework built on Axum, SeaORM, Maud, and HTMX
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52

//! DotLottie CDN inject.

pub const DOTLOTTIE_CDN_VERSION: &str = "0.9.17";
pub const DOTLOTTIE_CDN_URL: &str =
    "https://unpkg.com/@lottiefiles/dotlottie-wc@0.9.17/dist/dotlottie-wc.js";
pub const DOTLOTTIE_SCRIPT_ATTR: &str = "data-lariv-dotlottie";

fn script_tag() -> String {
    format!(r#"<script type="module" src="{DOTLOTTIE_CDN_URL}" {DOTLOTTIE_SCRIPT_ATTR}></script>"#)
}

/// Insert pinned DotLottie CDN script when HTML uses `<dotlottie-wc>` and loader is absent.
pub fn inject_dotlottie_script(html: &str) -> String {
    let lower = html.to_lowercase();
    if !lower.contains("dotlottie-wc") {
        return html.to_string();
    }
    if lower.contains(DOTLOTTIE_SCRIPT_ATTR) {
        return html.to_string();
    }
    let tag = script_tag();
    if let Some(idx) = lower.rfind("</body>") {
        format!("{}{}\n{}", &html[..idx], tag, &html[idx..])
    } else {
        format!("{html}\n{tag}\n")
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn injects_module_script_before_body_close() {
        let html = "<body><dotlottie-wc src=\"/static/a.json\"></dotlottie-wc></body>";
        let out = inject_dotlottie_script(html);
        assert!(out.contains(DOTLOTTIE_CDN_URL));
        assert!(out.contains(DOTLOTTIE_SCRIPT_ATTR));
        assert!(out.ends_with("</body>"));
        assert!(out.find("dotlottie-wc.js").unwrap() < out.rfind("</body>").unwrap());
    }

    #[test]
    fn skips_when_loader_already_present() {
        let html = format!(
            "<body><dotlottie-wc></dotlottie-wc>{}</body>",
            script_tag()
        );
        let out = inject_dotlottie_script(&html);
        assert_eq!(out.matches(DOTLOTTIE_CDN_URL).count(), 1);
    }
}