caracal 0.4.1

Nostr client for Gemini
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use super::route_prelude::*;
use mime_guess::Mime;
use std::str::FromStr;

/// Route to serve files from http/https URLs over Gemini
pub async fn route_www_get(ctx: RouteContext) -> Response {
    let Some(filename) = ctx.parameters.get("filename") else {
        return Response::temporary_failure("No filename in URL");
    };

    let Some(query) = decode_query(&ctx) else {
        return Response::input("URL");
    };

    let Ok(url) = Url::parse(&query) else {
        return Response::temporary_failure("Invalid URL");
    };

    match ehttp::fetch_async(ehttp::Request::get(url)).await {
        Ok(resp) => {
            let mime_from_content =
                Mime::from_str(tree_magic_mini::from_u8(&resp.bytes));
            let mime_type = mime_guess::from_path(filename).first().unwrap_or(
                mime_from_content.unwrap_or(mime::APPLICATION_OCTET_STREAM),
            );

            Response::binary_success(&resp.bytes, mime_type.to_string())
        }
        Err(err) => {
            Response::temporary_failure(format!("Failed to fetch file: {err}"))
        }
    }
}