feat(hosts): multi-port filter and port list on host creation

- Network dropdowns now show "Name - CIDR" in both filter bar and add modal
- Port filter accepts comma-separated ports (e.g. "80, 443"); a host must
  have ALL listed ports open to match (AND semantics)
- Add host modal has a new "Open ports" field (comma-separated); ports are
  registered in the catalog and linked to the host on creation
- Port conditions are inlined as validated integers in SQL (no injection risk)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/api/hosts.rs

@@ -48,22 +48,17 @@ pub async fn get_hosts_by_network(network_id: i64) -> Result<Vec<Host>, ServerFn
 
 /// Returns a filtered and paginated list of hosts across all networks.
 ///
-/// Filter parameters use sentinel values (0 / empty string) to mean "no filter":
+/// `port_filter` is a comma-separated list of port numbers (e.g. "80,443").
-///   - `name_filter`            : substring match on host name (case-insensitive); "" = all
+/// A host matches only if it has ALL the specified ports open.
-///   - `network_id_filter`      : exact network id; 0 = all
+/// An empty string means no port filter.
-///   - `port_filter`            : hosts with this port open; 0 = all
-///   - `application_id_filter`  : hosts linked to this application; 0 = all
-///   - `per_page`               : items per page; 0 = return everything
-///   - `page`                   : 1-indexed page number
 ///
-/// The SQL uses each bind parameter twice in the WHERE clause
+/// Port conditions are inlined in the SQL as integer literals (safe: values
-/// (once for the IS NULL guard, once for the actual comparison).
+/// are parsed and range-checked before use — no raw user strings are injected).
-/// Each $N placeholder refers to the N-th bound argument by index.
 #[server]
 pub async fn get_hosts_page(
     name_filter: String,
     network_id_filter: i64,
-    port_filter: i64,
+    port_filter: String,
     application_id_filter: i64,
     page: i64,
     per_page: i64,
@@ -73,47 +68,55 @@ pub async fn get_hosts_page(
     let pool = use_context::<AnyPool>()
         .ok_or_else(|| ServerFnError::new("Database pool not found in context"))?;
 
-    // Convert sentinel values to Option for SQL NULL binding.
-    // None → binds as SQL NULL → "$N IS NULL" evaluates to TRUE → filter skipped.
     let name_like: Option<String> = if name_filter.is_empty() {
         None
     } else {
         Some(format!("%{}%", name_filter))
     };
     let network_id: Option<i64> = if network_id_filter == 0 { None } else { Some(network_id_filter) };
-    let port: Option<i64>       = if port_filter == 0        { None } else { Some(port_filter) };
     let app_id: Option<i64>     = if application_id_filter == 0 { None } else { Some(application_id_filter) };
 
-    // Each filter param is bound twice so the same $N can appear in both
+    // Parse and validate port numbers from the CSV string.
-    // the IS NULL guard and the comparison without re-declaring parameters.
+    // Inlined as integer literals in SQL — safe because they are range-checked i64s.
-    const WHERE: &str = "
+    let ports: Vec<i64> = port_filter
-        JOIN networks n ON n.id = h.network_id
+        .split(',')
-        LEFT JOIN host_ports hp  ON hp.host_id = h.id
+        .filter_map(|s| s.trim().parse::<i64>().ok())
-        LEFT JOIN application_ports ap ON ap.port_number = hp.port_number
+        .filter(|&p| p >= 1 && p <= 65535)
-        WHERE ($1 IS NULL OR LOWER(h.name) LIKE LOWER($1))
+        .collect();
-          AND ($2 IS NULL OR h.network_id = $2)
-          AND ($3 IS NULL OR EXISTS (
-                  SELECT 1 FROM host_ports
-                  WHERE host_id = h.id AND port_number = $3
-              ))
-          AND ($4 IS NULL OR EXISTS (
-                  SELECT 1 FROM host_ports hp2
-                  JOIN application_ports ap2 ON ap2.port_number = hp2.port_number
-                  WHERE hp2.host_id = h.id AND ap2.application_id = $4
-              ))";
 
-    // Count matching hosts (ignoring pagination).
+    // One EXISTS clause per required port (AND semantics: host must have ALL ports).
-    let count_sql = format!("SELECT COUNT(DISTINCT h.id) FROM hosts h {WHERE}");
+    let port_conditions: String = ports
+        .iter()
+        .map(|p| format!(
+            " AND EXISTS (SELECT 1 FROM host_ports WHERE host_id = h.id AND port_number = {p})"
+        ))
+        .collect();
+
+    // $1 = name_like, $2 = network_id, $3 = app_id
+    // Pagination: $4 = limit, $5 = offset
+    let where_clause = format!(
+        "JOIN networks n ON n.id = h.network_id
+         LEFT JOIN host_ports hp  ON hp.host_id = h.id
+         LEFT JOIN application_ports ap ON ap.port_number = hp.port_number
+         WHERE ($1 IS NULL OR LOWER(h.name) LIKE LOWER($1))
+           AND ($2 IS NULL OR h.network_id = $2)
+           AND ($3 IS NULL OR EXISTS (
+                   SELECT 1 FROM host_ports hp2
+                   JOIN application_ports ap2 ON ap2.port_number = hp2.port_number
+                   WHERE hp2.host_id = h.id AND ap2.application_id = $3
+               ))
+         {port_conditions}"
+    );
+
+    let count_sql = format!("SELECT COUNT(DISTINCT h.id) FROM hosts h {where_clause}");
     let total: i64 = sqlx::query_scalar(&count_sql)
         .bind(name_like.as_deref())
         .bind(network_id)
-        .bind(port)
         .bind(app_id)
         .fetch_one(&pool)
         .await
         .map_err(|e| ServerFnError::new(e.to_string()))?;
 
-    // Compute pagination bounds.
     let safe_page = page.max(1);
     let (limit, offset, total_pages) = if per_page <= 0 {
         (1_000_000_000i64, 0i64, 1i64)
@@ -122,23 +125,21 @@ pub async fn get_hosts_page(
         (per_page, (safe_page - 1) * per_page, tp)
     };
 
-    // Fetch the page of hosts with enriched columns.
     let data_sql = format!(
         "SELECT h.id, h.name, h.ip, h.network_id,
                 n.cidr AS network_cidr,
                 COUNT(DISTINCT hp.port_number)      AS port_count,
                 COUNT(DISTINCT ap.application_id)   AS application_count
          FROM hosts h
-         {WHERE}
+         {where_clause}
          GROUP BY h.id, h.name, h.ip, h.network_id, n.cidr
          ORDER BY h.name, h.id
-         LIMIT $5 OFFSET $6"
+         LIMIT $4 OFFSET $5"
     );
 
     let rows = sqlx::query(&data_sql)
         .bind(name_like.as_deref())
         .bind(network_id)
-        .bind(port)
         .bind(app_id)
         .bind(limit)
         .bind(offset)
@@ -170,19 +171,21 @@ pub async fn get_hosts_page(
 
 // ─── Mutations ────────────────────────────────────────────────────────────────
 
-/// Creates a new host inside the specified network.
+/// Creates a new host inside the specified network, then opens the given ports.
 ///
-/// Validates that `ip` falls within the CIDR of `network_id`.
+/// `ports` is a comma-separated list of port numbers (e.g. "22,80,443").
-/// Returns an error if the network does not exist or the IP is out of range.
+/// Ports are auto-registered in the global catalog if not already present.
+/// An empty string means no ports are opened.
 #[server]
 pub async fn create_host(
     name: String,
     ip: String,
     network_id: i64,
+    ports: String,
 ) -> Result<Host, ServerFnError> {
     use sqlx::AnyPool;
     use crate::server::{
-        repository::{hosts, networks},
+        repository::{hosts, networks, ports as port_repo},
         validation::validate_ip_in_network,
     };
 
@@ -192,16 +195,29 @@ pub async fn create_host(
     let network = networks::find_network(&pool, network_id)
         .await
         .map_err(|e| ServerFnError::new(e.to_string()))?
-        .ok_or_else(|| {
+        .ok_or_else(|| ServerFnError::new(format!("Network {network_id} not found")))?;
-            ServerFnError::new(format!("Network {network_id} not found"))
-        })?;
 
     validate_ip_in_network(&ip, &network.cidr)
         .map_err(|e| ServerFnError::new(e.to_string()))?;
 
-    hosts::create_host(&pool, &name, &ip, network_id)
+    let host = hosts::create_host(&pool, &name, &ip, network_id)
         .await
-        .map_err(|e| ServerFnError::new(e.to_string()))
+        .map_err(|e| ServerFnError::new(e.to_string()))?;
+
+    // Parse, validate, and open each port on the new host.
+    let port_numbers: Vec<u16> = ports
+        .split(',')
+        .filter_map(|s| s.trim().parse::<u16>().ok())
+        .filter(|&p| p >= 1)
+        .collect();
+
+    for port_number in port_numbers {
+        port_repo::add_port_to_host(&pool, host.id, port_number)
+            .await
+            .map_err(|e| ServerFnError::new(e.to_string()))?;
+    }
+
+    Ok(host)
 }
 
 /// Deletes a host by id.

src/client/hosts.rs

@@ -2,7 +2,7 @@
 //
 // Displays all hosts across every network with:
 //   - Add button   : opens a modal form to create a host inside a chosen network
-//   - Filter bar   : name (substring), network, open port, application
+//   - Filter bar   : name (substring), network, open ports (CSV), application
 //   - Table        : name, IP, network, port count, application count, delete
 //   - Pagination   : configurable page size (15 / 25 / 50 / 100 / All)
 //
@@ -43,9 +43,7 @@ fn AddHostModal(
     });
 
     view! {
-        // Backdrop — click outside the card to close
         <div class="modal-backdrop" on:click=move |_| show_modal.set(false)>
-            // stop_propagation keeps clicks inside the card from closing the modal
             <div class="modal" on:click=move |e| e.stop_propagation()>
                 <div class="modal__header">
                     <h2>"Add a host"</h2>
@@ -74,11 +72,21 @@ fn AddHostModal(
                                 {move || networks_res.get()
                                     .and_then(|r| r.ok())
                                     .map(|nets| nets.into_iter().map(|n| {
-                                        view! { <option value=n.id.to_string()>{n.name}</option> }
+                                        let label = format!("{} - {}", n.name, n.cidr);
+                                        view! { <option value=n.id.to_string()>{label}</option> }
                                     }).collect_view())
                                 }
                             </select>
                         </label>
+                        <label>
+                            "Open ports"
+                            <input
+                                type="text"
+                                name="ports"
+                                placeholder="e.g. 22, 80, 443"
+                            />
+                            <span class="field-hint">"Comma-separated port numbers"</span>
+                        </label>
                     </div>
 
                     <div class="modal__actions">
@@ -108,7 +116,7 @@ fn FilterBar(
     applications_res: Resource<Result<Vec<crate::models::Application>, ServerFnError>>,
     name_filter: RwSignal<String>,
     network_id_filter: RwSignal<i64>,
-    port_filter: RwSignal<i64>,
+    port_filter: RwSignal<String>,
     app_id_filter: RwSignal<i64>,
     page: RwSignal<i64>,
 ) -> impl IntoView {
@@ -137,24 +145,24 @@ fn FilterBar(
                         {move || networks_res.get()
                             .and_then(|r| r.ok())
                             .map(|nets| nets.into_iter().map(|n| {
-                                view! { <option value=n.id.to_string()>{n.name}</option> }
+                                let label = format!("{} - {}", n.name, n.cidr);
+                                view! { <option value=n.id.to_string()>{label}</option> }
                             }).collect_view())
                         }
                     </select>
                 </label>
 
                 <label class="filter-field">
-                    "Open port"
+                    "Open ports"
                     <input
-                        type="number"
+                        type="text"
-                        min="1"
+                        placeholder="e.g. 80, 443"
-                        max="65535"
-                        placeholder="e.g. 443"
                         on:change=move |e| {
-                            port_filter.set(event_target_value(&e).parse().unwrap_or(0));
+                            port_filter.set(event_target_value(&e));
                             page.set(1);
                         }
                     />
+                    <span class="field-hint">"All listed ports must be open"</span>
                 </label>
 
                 <label class="filter-field">
@@ -212,7 +220,6 @@ fn PaginationBar(
                     </select>
                 </label>
 
-                // Page navigation — hidden when showing all results (per_page == 0)
                 {move || (per_page.get() > 0).then(|| view! {
                     <div class="pagination-nav">
                         <button
@@ -308,24 +315,20 @@ fn HostTable(
 
 #[component]
 pub fn HostsPage() -> impl IntoView {
-    // Actions
     let create_action = ServerAction::<CreateHost>::new();
     let delete_action = ServerAction::<DeleteHost>::new();
 
-    // Controls the add-host modal
     let show_modal = RwSignal::new(false);
 
-    // Filter signals (0 / "" = no filter)
+    // Filter signals ("" / 0 = no filter)
     let name_filter       = RwSignal::new(String::new());
     let network_id_filter = RwSignal::new(0i64);
-    let port_filter       = RwSignal::new(0i64);
+    let port_filter       = RwSignal::new(String::new()); // CSV of port numbers
     let app_id_filter     = RwSignal::new(0i64);
 
-    // Pagination signals
     let page     = RwSignal::new(1i64);
     let per_page = RwSignal::new(15i64);
 
-    // Hosts resource — refetches whenever any filter/pagination/action changes
     let hosts = Resource::new(
         move || (
             name_filter.get(),
@@ -340,11 +343,9 @@ pub fn HostsPage() -> impl IntoView {
         |(name, net, port, app, p, pp, _, _)| get_hosts_page(name, net, port, app, p, pp),
     );
 
-    // Dropdown resources (fetched once on mount)
     let networks_res     = Resource::new(|| (), |_| get_networks());
     let applications_res = Resource::new(|| (), |_| get_applications());
 
-    // Derived pagination signals
     let total_pages = Signal::derive(move || {
         hosts.get().and_then(|r| r.ok()).map(|p| p.total_pages).unwrap_or(1)
     });
@@ -361,7 +362,6 @@ pub fn HostsPage() -> impl IntoView {
                 </button>
             </div>
 
-            // Modal — only rendered when show_modal is true
             {move || show_modal.get().then(|| view! {
                 <AddHostModal
                     create_action=create_action

style/rust-ipam.css

@@ -784,6 +784,13 @@ td.col-actions {
   color: var(--text-secondary);
 }
 
+.field-hint {
+  font-size: var(--font-xs, 0.72rem);
+  font-weight: 400;
+  color: var(--text-muted, var(--text-secondary));
+  opacity: 0.75;
+}
+
 /* ============================================================
    PAGINATION BAR
    ============================================================ */