fix(mount): M-03 — output webdav credentials and manual mount instructions for linux

src/mount.rs

@@ -375,16 +375,8 @@ pub async fn mount_container(
         );
         #[cfg(not(windows))]
         {
-            println!(
-                "  • gio Befehl:   gio mount dav://127.0.0.1:{}/",
-                bound_port
-            );
-            if let Some(mp) = mount_point {
-                println!(
-                    "  • davfs2:       mount -t davfs http://127.0.0.1:{}/ {}",
-                    bound_port,
-                    mp.display()
-                );
+            for line in format_linux_mount_instructions(bound_port, &session_token, mount_point) {
+                println!("{}", line);
             }
         }
         if let Some(secs) = idle_timeout {
@@ -657,6 +649,36 @@ pub fn is_loopback_host(host_str: &str) -> bool {
     matches!(host_part, "127.0.0.1" | "localhost" | "::1")
 }
 
+/// Erzeugt die plattformspezifischen Linux-Mount-Anweisungen und Authentifizierungsdaten (M-03).
+pub fn format_linux_mount_instructions(
+    port: u16,
+    token: &str,
+    mount_point: Option<&std::path::Path>,
+) -> Vec<String> {
+    let mut lines = Vec::new();
+    lines.push(format!(
+        "  • WebDAV-Auth:  Benutzer: sanctum | Token: {}",
+        token
+    ));
+    lines.push(format!(
+        "  • gio Befehl:   echo {} | gio mount dav://sanctum@127.0.0.1:{}/",
+        token, port
+    ));
+    if let Some(mp) = mount_point {
+        lines.push(format!(
+            "  • davfs2:       mount -t davfs -o username=sanctum http://127.0.0.1:{}/ {}",
+            port,
+            mp.display()
+        ));
+    } else {
+        lines.push(format!(
+            "  • davfs2:       mount -t davfs -o username=sanctum http://127.0.0.1:{}/ /mnt/sanctum",
+            port
+        ));
+    }
+    lines
+}
+
 /// Maximale Anzahl gleichzeitiger Verbindungen zum lokalen WebDAV-Endpunkt (Schutz gegen Socket-Exhaustion).
 const MAX_CONCURRENT_DAV_CONNECTIONS: usize = 64;
 
@@ -948,4 +970,20 @@ mod tests {
         // Leeres Token darf niemals matchen
         assert!(!uri_contains_token(&uri_clean, ""));
     }
+
+    #[test]
+    fn test_m03_format_linux_mount_instructions() {
+        let token = "fedcba9876543210fedcba9876543210";
+        let instructions = format_linux_mount_instructions(
+            8443,
+            token,
+            Some(std::path::Path::new("/mnt/secure")),
+        );
+
+        let all_text = instructions.join("\n");
+        assert!(all_text.contains("Benutzer: sanctum"));
+        assert!(all_text.contains(token));
+        assert!(all_text.contains("gio mount dav://sanctum@127.0.0.1:8443/"));
+        assert!(all_text.contains("mount -t davfs -o username=sanctum http://127.0.0.1:8443/ /mnt/secure"));
+    }
 }