From 76a567d1bf4469aff684a43e4a3391d6b32cc934 Mon Sep 17 00:00:00 2001
From: Neshura <neshura@neshweb.net>
Date: Wed, 10 Apr 2024 23:22:11 +0200
Subject: [PATCH] Add duplicate domain check, closes #5

---
 src/main.rs | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index a874d2c..eba4c8b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -146,6 +146,7 @@ impl Config {
                 let msg = format!("Using {}", path);
                 directories.push(system_path.to_path_buf());
                 info!(msg);
+                Self::check_for_duplicate_domains(&user_config.domain_configs);
                 Ok((Config {
                     user: user_config,
                     system: data,
@@ -211,7 +212,7 @@ impl Config {
                 let new_root = root.join(paths[0]);
                 println!("{}", &new_root.display());
                 let ret = unix::fs::chown(&new_root, Some(uid), Some(gid));
-                
+
                 let mut new_paths = paths.clone();
                 new_paths.remove(0);
                 match Self::fix_path_ownership(new_root, new_paths) {
@@ -224,6 +225,32 @@ impl Config {
             }
         }
     }
+
+    fn check_for_duplicate_domains(domain_configs: &[DomainLinkConfig]) {
+        let mut checked_domains: Vec<String> = vec![];
+        for (cfg_idx, config) in domain_configs.iter().enumerate() {
+            for (idx, domain) in config.domains.iter().enumerate() {
+                if !checked_domains.contains(domain) {
+                    if config.domains[idx+1..].contains(domain) {
+                        // Error
+                        let msg = format!("Duplicate Domain use detected for '{domain}");
+                        warn!(msg);
+                        checked_domains.push(domain.clone());
+                    }
+                    else {
+                        for d in domain_configs[cfg_idx+1..].iter() {
+                            if d.domains.contains(domain) {
+                                let msg = format!("Duplicate Domain use detected for '{domain}");
+                                warn!(msg);
+                                checked_domains.push(domain.clone());
+                                break;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
 }
 
 #[actix_web::main]