Update dependencies' versions

[voter] / src / main.rs

diff --git a/src/main.rs b/src/main.rs
index 303393c150dab17af457194ab9501d6865821d98..2e5de542f4381e15ecf3646bb45f6348f6aea5e2 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,9 @@
+// voter: A simple CGI vote recorder, approval-voting-style
+//
+// This program is free software: you can redistribute it and/or modify it
+// under the terms of the GNU Affero General Public License as published
+// by the Free Software Foundation, version 3.
+
 use rand::prelude::*;
 use std::collections::{HashMap, HashSet};
 use std::io::prelude::*;
@@ -12,7 +18,7 @@ fn validate_path(path: &str) -> Result<PathBuf, cgi::Response> {
     if path == "/" {
         return Err(cgi::text_response(404, "(This is the voting place.  You should have been given a more specific URL for the specific thing you've been invited to vote on.)"));
     }
-    if path.contains("..") || !path.starts_with("/") {
+    if path.contains("..") || !path.starts_with('/') {
         return Err(invalid_path());
     }
     let dir = Path::new(&format!("{DATA_PATH}{path}")).to_path_buf();
@@ -71,14 +77,16 @@ fn tally_votes(dir: PathBuf) -> std::io::Result<HashMap<String, HashSet<String>>
     Ok(tally)
 }
 
+fn valid_id_char(c: &u8) -> bool {
+    (b'A'..=b'Z').contains(c) || (b'a'..=b'z').contains(c) || (b'0'..=b'9').contains(c)
+}
+
 fn make_random_id() -> [u8; COOKIE_LENGTH] {
     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])
+    for c in id.iter_mut() {
+        while !valid_id_char(c)
         {
-            id[i] = random()
+            *c = random()
         }
     }
     id
@@ -92,7 +100,7 @@ fn set_cookie(mut response: cgi::Response, path: &str) -> Result<cgi::Response,
                 COOKIE_NAME,
                 b"=",
                 &make_random_id(),
-                b"; Secure HttpOnly SameSite=Strict Max-Age=30000000 Path=",
+                b"; Secure; HttpOnly; SameSite=Strict; Max-Age=30000000; Path=",
                 path.as_bytes(),
             ]
             .concat(),
@@ -241,7 +249,7 @@ fn write_vote(dir: PathBuf, voter: &[u8], vote: &[u8]) -> std::io::Result<()> {
         .create(true)
         .open(vpath)?;
     let mut vlock = fd_lock::RwLock::new(vfile);
-    vlock.write()?.write(&datum)?;
+    vlock.write()?.write_all(&datum)?;
     Ok(())
 }
 
@@ -255,7 +263,7 @@ fn record_vote(dir: PathBuf, request: cgi::Request) -> Result<cgi::Response, cgi
     {
         return Err(cgi::text_response(415, "Invalid vote"));
     }
-    write_vote(dir, &get_voter(&request)?, body)
+    write_vote(dir, get_voter(&request)?, body)
         .map_err(|_| cgi::text_response(503, "Couldn't record vote"))?;
     Ok(cgi::text_response(200, "Vote recorded"))
 }
@@ -267,10 +275,10 @@ fn strip_body(mut response: cgi::Response) -> cgi::Response {
 
 fn respond(request: cgi::Request) -> Result<cgi::Response, cgi::Response> {
     let dir = validate_path(request.uri().path())?;
-    match request.method() {
-        &cgi::http::Method::HEAD => prompt_for_vote(dir, request).map(strip_body),
-        &cgi::http::Method::GET => prompt_for_vote(dir, request),
-        &cgi::http::Method::PUT => record_vote(dir, request),
+    match *request.method() {
+        cgi::http::Method::HEAD => prompt_for_vote(dir, request).map(strip_body),
+        cgi::http::Method::GET => prompt_for_vote(dir, request),
+        cgi::http::Method::PUT => record_vote(dir, request),
         _ => Err(cgi::text_response(405, "Huh?")),
     }
 }