third_party/rust_crates/vendor/rouille/examples/static-files.rs

// Copyright (c) 2016 The Rouille developers
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT
// license <LICENSE-MIT or http://opensource.org/licenses/MIT>,
// at your option. All files in the project carrying such
// notice may not be copied, modified, or distributed except
// according to those terms.

extern crate rouille;

use rouille::Response;

fn main() {
    // This example shows how to serve static files with rouille.

    // Note that like all examples we only listen on `localhost`, so you can't access this server
    // from another machine than your own.
    println!("Now listening on localhost:8000");

    rouille::start_server("localhost:8000", move |request| {
        {
            // The `match_assets` function tries to find a file whose name corresponds to the URL
            // of the request. The second parameter (`"."`) tells where the files to look for are
            // located.
            // In order to avoid potential security threats, `match_assets` will never return any
            // file outside of this directory even if the URL is for example `/../../foo.txt`.
            let response = rouille::match_assets(&request, ".");

            // If a file is found, the `match_assets` function will return a response with a 200
            // status code and the content of the file. If no file is found, it will instead return
            // an empty 404 response.
            // Here we check whether if a file is found, and if so we return the response.
            if response.is_success() {
                return response;
            }
        }

        // This point of the code is reached only if no static file matched the request URL.

        // In a real website you probably want to serve non-static files here (with the `router!`
        // macro for example), but here we just return a 404 response.
        Response::html("404 error. Try <a href=\"/README.md\"`>README.md</a> or \
                        <a href=\"/src/lib.rs\">src/lib.rs</a> for example.")
            .with_status_code(404)
    });
}