const DATA_PATH: &str = "/var/lib/voter";
const COOKIE_NAME: &[u8] = b"__Secure-id";
-const COOKIE_LENGTH: usize = 32;
+const COOKIE_LENGTH: usize = 12;
fn validate_path(path: &str) -> Result<PathBuf, cgi::Response> {
let invalid_path = || cgi::text_response(404, "Invalid path");
}
fn make_random_id() -> [u8; COOKIE_LENGTH] {
- std::iter::from_fn(random)
- .filter(|c| {
- (b'A'..=b'Z').contains(c) || (b'a'..=b'z').contains(c) || (b'0'..=b'9').contains(c)
- })
- .take(COOKIE_LENGTH)
- .collect::<Vec<_>>()
- .try_into()
- .unwrap()
+ let mut id = [0; COOKIE_LENGTH];
+ for i in 0..COOKIE_LENGTH {
+ while !(b'A'..=b'Z').contains(&id[i])
+ && !(b'a'..=b'z').contains(&id[i])
+ && !(b'0'..=b'9').contains(&id[i])
+ {
+ id[i] = random()
+ }
+ }
+ id
}
fn set_cookie(mut response: cgi::Response, path: &str) -> Result<cgi::Response, cgi::Response> {
Ok(response)
}
+const HTML_HEADER: &str = "<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset=\"utf-8\">
+ <title>Vote!</title>
+ <style>
+ input { transform: scale(1.5) }
+ div { animation: 2s infinite linear spin }
+ @keyframes spin {
+ from { transform:rotate(0) }
+ to { transform:rotate(1turn) }
+ }
+ </style>
+ <script>
+ window.onload = function() {
+ for (cb of document.getElementsByTagName('input')) {
+ cb.addEventListener('click', (function(cb) {
+ return function() {
+ cb.style.display = 'none'
+ const spin = document.createElement('div')
+ spin.appendChild(document.createTextNode('⏳'))
+ cb.parentElement.insertBefore(spin, cb)
+
+ const req = new XMLHttpRequest()
+ req.addEventListener('load', function(e) {
+ cb.parentElement.removeChild(cb.previousElementSibling)
+ if (req.status == 200) {
+ cb.style.display = ''
+ } else {
+ cb.parentElement.insertBefore(document.createTextNode('❗'), cb)
+ }
+ })
+ req.open('PUT', window.location.href)
+ req.send((cb.checked ? 1 : 0) + ' ' + cb.parentElement.nextSibling.innerHTML)
+ }
+ })(cb))
+ cb.disabled = false
+ }
+ }
+ </script>
+ </head>
+ <body>
+ <table>";
+const HTML_FOOTER: &str = "
+ </table>
+ </body>
+</html>";
+
fn prompt_for_vote(dir: PathBuf, request: cgi::Request) -> Result<cgi::Response, cgi::Response> {
let voter = get_voter(&request);
- let mut response = cgi::html_response(200, "<html><body>You should vote</body></html>");
+ let cfile = std::fs::File::open(dir.join("candidates"))
+ .map_err(|_| cgi::text_response(503, "No candidates"))?;
+ let mut response = cgi::html_response(
+ 200,
+ std::iter::once(Ok(HTML_HEADER.to_owned()))
+ .chain(std::io::BufReader::new(cfile).lines().map(|rc| {
+ rc.map(|c| {
+ format!("<tr><td><input type=\"checkbox\" disabled></td><td>{c}</td></tr>")
+ })
+ }))
+ .chain(std::iter::once(Ok(HTML_FOOTER.to_owned())))
+ .collect::<std::io::Result<String>>()
+ .map_err(|_| cgi::text_response(503, "Missing candidates"))?,
+ );
if voter.is_err() {
response = set_cookie(response, request.uri().path())?
}
projects / voter / blobdiff