Unify version and file checking behind one config parameter

And make it affect the patch server as well, if you really want to
use an unsupported version.

src/bin/kawari-lobby.rs

@@ -224,7 +224,7 @@ async fn main() {
                                     let config = get_config();
 
                                     // The lobby server does its own version check as well, but it can be turned off if desired.
-                                    if config.lobby.do_version_checks
+                                    if config.enforce_validity_checks
                                         && !do_game_version_check(version_info)
                                     {
                                         // "A version update is required."

src/bin/kawari-patch.rs

@@ -88,7 +88,10 @@ async fn verify_session(
         return StatusCode::INTERNAL_SERVER_ERROR.into_response();
     }
 
-    tracing::info!("Verifying game components for {platform} {channel} {game_version} {body}...");
+    if config.enforce_validity_checks {
+        tracing::info!(
+            "Verifying game components for {platform} {channel} {game_version} {body}..."
+        );
 
         let body_parts: Vec<&str> = body.split('\n').collect();
 
@@ -115,12 +118,16 @@ async fn verify_session(
 
         // Their version is too new
         if game_version > SUPPORTED_GAME_VERSION {
-        tracing::warn!("{game_version} is above supported game version {SUPPORTED_GAME_VERSION}!");
+            tracing::warn!(
+                "{game_version} is above supported game version {SUPPORTED_GAME_VERSION}!"
+            );
             return StatusCode::INTERNAL_SERVER_ERROR.into_response();
         }
 
         if game_version < SUPPORTED_GAME_VERSION {
-        tracing::warn!("{game_version} is below supported game version {SUPPORTED_GAME_VERSION}!");
+            tracing::warn!(
+                "{game_version} is below supported game version {SUPPORTED_GAME_VERSION}!"
+            );
             return StatusCode::INTERNAL_SERVER_ERROR.into_response();
         }
 
@@ -131,6 +138,7 @@ async fn verify_session(
 
             return (headers).into_response();
         }
+    }
 
     let mut headers = HeaderMap::new();
     headers.insert("X-Patch-Unique-Id", sid.parse().unwrap());
@@ -147,6 +155,12 @@ async fn verify_boot(
         return StatusCode::INTERNAL_SERVER_ERROR.into_response();
     }
 
+    let config = get_config();
+    if !config.supports_platform(&platform) {
+        return StatusCode::INTERNAL_SERVER_ERROR.into_response();
+    }
+
+    if config.enforce_validity_checks {
         tracing::info!("Verifying boot components for {platform} {channel} {boot_version}...");
 
         let config = get_config();
@@ -166,7 +180,9 @@ async fn verify_boot(
 
         // Their version is too new
         if boot_version > SUPPORTED_BOOT_VERSION {
-        tracing::warn!("{boot_version} is above supported boot version {SUPPORTED_BOOT_VERSION}!");
+            tracing::warn!(
+                "{boot_version} is above supported boot version {SUPPORTED_BOOT_VERSION}!"
+            );
             return StatusCode::INTERNAL_SERVER_ERROR.into_response();
         }
 
@@ -208,6 +224,7 @@ async fn verify_boot(
             let patch_list_str = patch_list.to_string(PatchListType::Boot);
             return patch_list_str.into_response();
         }
+    }
 
     let headers = HeaderMap::new();
     (headers).into_response()

src/config.rs

@@ -66,7 +66,6 @@ impl FrontierConfig {
 pub struct LobbyConfig {
     pub port: u16,
     pub listen_address: String,
-    pub do_version_checks: bool,
 }
 
 impl Default for LobbyConfig {
@@ -74,7 +73,6 @@ impl Default for LobbyConfig {
         Self {
             port: 7000,
             listen_address: "0.0.0.0".to_string(),
-            do_version_checks: true,
         }
     }
 }
@@ -401,6 +399,10 @@ pub struct Config {
     /// Enable various packet debug functions. This will clutter your working directory!
     #[serde(default)]
     pub packet_debugging: bool,
+
+    /// Enable various validity checks for version and file hashes that emulate retail.
+    #[serde(default = "Config::default_enforce_validity_checks")]
+    pub enforce_validity_checks: bool,
 }
 
 impl Default for Config {
@@ -418,6 +420,7 @@ impl Default for Config {
             launcher: LauncherConfig::default(),
             save_data_bank: SaveDataBankConfig::default(),
             packet_debugging: false,
+            enforce_validity_checks: Self::default_enforce_validity_checks(),
         }
     }
 }
@@ -426,6 +429,10 @@ impl Config {
     pub fn supports_platform(&self, platform: &String) -> bool {
         self.supported_platforms.contains(platform)
     }
+
+    fn default_enforce_validity_checks() -> bool {
+        true
+    }
 }
 
 fn default_supported_platforms() -> Vec<String> {