add template builder and form handler for modifying wifi ap password

peach-web/src/routes/settings/network/mod.rs

@@ -1 +1,2 @@
 pub mod menu;
+pub mod modify_ap;

peach-web/src/routes/settings/network/modify_ap.rs

@@ -0,0 +1,104 @@
+use maud::{html, Markup, PreEscaped};
+use peach_network::network;
+use rouille::{post_input, try_or_400, Request, Response};
+
+use crate::{
+    templates,
+    utils::{
+        flash::{FlashRequest, FlashResponse},
+        theme,
+    },
+};
+
+// ROUTE: /settings/network/wifi/modify?<ssid>
+
+fn render_ssid_input(selected_ap: Option<String>) -> Markup {
+    html! {
+        (PreEscaped("<!-- input for network ssid -->"))
+        input id="ssid" name="ssid" class="center input" type="text" placeholder="SSID" title="Network name (SSID) for WiFi access point" value=[selected_ap] autofocus;
+    }
+}
+
+fn render_password_input() -> Markup {
+    html! {
+        (PreEscaped("<!-- input for network password -->"))
+        input id="pass" name="pass" class="center input" type="password" placeholder="Password" title="Password for WiFi access point";
+    }
+}
+
+fn render_buttons() -> Markup {
+    html! {
+        (PreEscaped("<!-- BUTTONS -->"))
+        div id="buttons" {
+            input id="savePassword" class="button button-primary center" title="Save" type="submit" value="Save";
+            a class="button button-secondary center" href="/settings/network" title="Cancel" { "Cancel" }
+        }
+    }
+}
+
+/// WiFi access point password modification form template builder.
+pub fn build_template(request: &Request, selected_ap: Option<String>) -> PreEscaped<String> {
+    let (flash_name, flash_msg) = request.retrieve_flash();
+
+    let form_template = html! {
+        (PreEscaped("<!-- NETWORK MODIFY AP PASSWORD FORM -->"))
+        div class="card center" {
+            form id="wifiModify" action="/settings/network/wifi/modify" method="post" {
+                (render_ssid_input(selected_ap))
+                (render_password_input())
+                (render_buttons())
+            }
+            // render flash message if cookies were found in the request
+            @if let (Some(name), Some(msg)) = (flash_name, flash_msg) {
+                (PreEscaped("<!-- FLASH MESSAGE -->"))
+                (templates::flash::build_template(name, msg))
+            }
+        }
+    };
+
+    let body = templates::nav::build_template(
+        form_template,
+        "Change WiFi Password",
+        Some("/settings/network"),
+    );
+
+    let theme = theme::get_theme();
+
+    templates::base::build_template(body, theme)
+}
+
+/// Parse the SSID and password for an access point and save the new password.
+pub fn handle_form(request: &Request) -> Response {
+    let data = try_or_400!(post_input!(request, {
+        ssid: String,
+        pass: String,
+    }));
+
+    let (name, msg) = match network::id("wlan0", &data.ssid) {
+        Ok(Some(id)) => match network::modify(&id, &data.ssid, &data.pass) {
+            Ok(_) => ("success".to_string(), "WiFi password updated".to_string()),
+            Err(err) => (
+                "error".to_string(),
+                format!("Failed to update WiFi password: {}", err),
+            ),
+        },
+        Ok(None) => (
+            "error".to_string(),
+            format!(
+                "Failed to update WiFi password: no saved credentials found for network {}",
+                &data.ssid
+            ),
+        ),
+        Err(err) => (
+            "error".to_string(),
+            format!(
+                "Failed to update WiFi password: no ID found for network {}: {}",
+                &data.ssid, err
+            ),
+        ),
+    };
+
+    let (flash_name, flash_msg) = (format!("flash_name={}", name), format!("flash_msg={}", msg));
+
+    Response::redirect_303("/settings/network/wifi/modify").add_flash(flash_name, flash_msg)
+}