refactor(codeql): decompose complex conditions + harden Vite web-root check

web/Areas/CMS/Data/CMS.cs

@@ -383,10 +383,31 @@ public bool CheckFilePermission(CMSFile file)
 
             if (_rapsContext! != null && currentUser != null)
             {
-                if (file.AllowPublicAccess ||
-                    (file.FileToPermissions.Count == 0 && UserHelper.HasPermission(_rapsContext, currentUser, "SVMSecure")) ||
-                    (file.FileToPermissions.Count > 0 && file.FileToPermissions.Any(fp => UserHelper.GetAllPermissions(_rapsContext, currentUser).Any(p => string.Compare(fp.Permission, p.Permission, true) == 0))) ||
-                    (file.FileToPeople.Count > 0 && file.FileToPeople.Any(fp => fp.IamId == currentUser.IamId)))
+                // Each access path returns early so later (more expensive) checks are
+                // skipped once access is granted, preserving the original short-circuit.
+                if (file.AllowPublicAccess)
+                {
+                    return true;
+                }
+                // No explicit permissions: any authenticated SVMSecure user may access.
+                if (file.FileToPermissions.Count == 0 && UserHelper.HasPermission(_rapsContext, currentUser, "SVMSecure"))
+                {
+                    return true;
+                }
+                // Explicit permissions: the user must hold a matching one. Resolve the user's
+                // permissions once into a set rather than re-querying for each file permission.
+                if (file.FileToPermissions.Count > 0)
+                {
+                    var userPermissions = UserHelper.GetAllPermissions(_rapsContext, currentUser)
+                        .Select(p => p.Permission)
+                        .ToHashSet(StringComparer.OrdinalIgnoreCase);
+                    if (file.FileToPermissions.Any(fp => userPermissions.Contains(fp.Permission)))
+                    {
+                        return true;
+                    }
+                }
+                // Explicit people: the user must be listed.
+                if (file.FileToPeople.Count > 0 && file.FileToPeople.Any(fp => fp.IamId == currentUser.IamId))
                 {
                     return true;
                 }

web/ViteProxyHelpers.cs

@@ -216,10 +216,12 @@ public static HttpRequestMessage CreateProxyRequest(HttpContext context, string
         var requestMessage = new HttpRequestMessage(new HttpMethod(context.Request.Method), targetUrl);
 
         // Only copy request body for methods that typically support it
-        var method = context.Request.Method.ToUpperInvariant();
-        if (method != "GET" && method != "HEAD"
-            && ((context.Request.ContentLength.HasValue && context.Request.ContentLength > 0) ||
-                (!context.Request.ContentLength.HasValue && context.Request.Body.CanRead)))
+        var requestMethod = context.Request.Method;
+        bool methodSupportsBody = !string.Equals(requestMethod, "GET", StringComparison.OrdinalIgnoreCase)
+            && !string.Equals(requestMethod, "HEAD", StringComparison.OrdinalIgnoreCase);
+        bool hasReadableBody = (context.Request.ContentLength.HasValue && context.Request.ContentLength > 0)
+            || (!context.Request.ContentLength.HasValue && context.Request.Body.CanRead);
+        if (methodSupportsBody && hasReadableBody)
         {
             requestMessage.Content = new StreamContent(context.Request.Body);
 
@@ -348,10 +350,15 @@ public static async Task HandleProxyError(HttpContext context, Exception ex, ILo
                 var physicalPath = Path.Join(context.RequestServices.GetRequiredService<IWebHostEnvironment>().WebRootPath,
                     staticPath.TrimStart('/').Replace('/', Path.DirectorySeparatorChar));
 
-                // Prevent directory traversal: ensure the resolved physical path is within WebRootPath
+                // Prevent directory traversal: resolved path must sit inside WebRootPath. The trailing separator
+                // makes StartsWith respect the boundary so a sibling like "wwwroot-secret" can't match "wwwroot".
                 var webRoot = context.RequestServices.GetRequiredService<IWebHostEnvironment>().WebRootPath;
                 var resolvedPhysical = Path.GetFullPath(physicalPath);
                 var resolvedWebRoot = Path.GetFullPath(webRoot);
+                if (!Path.EndsInDirectorySeparator(resolvedWebRoot))
+                {
+                    resolvedWebRoot += Path.DirectorySeparatorChar;
+                }
 
                 if (!resolvedPhysical.StartsWith(resolvedWebRoot, StringComparison.OrdinalIgnoreCase))
                 {