modules: move all per-module state/config out of server.rs/config.rs into own files

src/modules/hidewhois.rs

@@ -0,0 +1,26 @@
+//! hidewhois — InspIRCd `m_hidewhois`. Hides sensitive WHOIS lines (server, idle,
+//! secure, …) from ordinary users. Opers and the user themselves are exempt when
+//! the matching config toggle is on. All config-driven; nothing lives on `Server`.
+
+use crate::server::Server;
+use crate::Uid;
+
+/// Whether sensitive WHOIS lines should be hidden for this (viewer, target) pair.
+pub fn hide(s: &Server, viewer: Uid, target: Uid, viewer_oper: bool) -> bool {
+    if !s.conf_bool("hidewhois", false) {
+        return false;
+    }
+    let selfview = s.conf_bool("hidewhois_selfview", true);
+    let opers = s.conf_bool("hidewhois_opers", true);
+    !(viewer == target && selfview) && !(viewer_oper && opers)
+}
+
+pub fn hide_server(s: &Server) -> bool {
+    s.conf_bool("hidewhois_hide_server", true)
+}
+pub fn hide_idle(s: &Server) -> bool {
+    s.conf_bool("hidewhois_hide_idle", true)
+}
+pub fn hide_secure(s: &Server) -> bool {
+    s.conf_bool("hidewhois_hide_secure", true)
+}