Add Cloudflare "CF-Connecting-IP" header

Author: Ruben Bisharyan

src/Pandatech.VerticalSlices/SharedKernel/Helpers/HttpContextParser.cs

@@ -109,7 +109,8 @@ public static string TryParseUserAgent(this HttpContext httpContext)
          "X-Forwarded-Host",
          "X-Forwarded-Proto",
          "X-Forwarded-Server",
-         "X-Forwarded-Port"
+         "X-Forwarded-Port",
+         "CF-Connecting-IP"
       };
 
       var stringBuilder = new StringBuilder();
@@ -186,7 +187,8 @@ public static decimal TryParseAccuracy(this HttpContext httpContext)
 
    public static string TryParseUserNetworkAddress(this HttpContext httpContext)
    {
-      string[] headersToCheck = ["X-Forwarded-For", "Forwarded", "X-Real-IP"];
+      // Check at first Cloudflare "CF-Connecting-IP" header, which contains client real IP address
+      string[] headersToCheck = ["CF-Connecting-IP", "X-Forwarded-For", "Forwarded", "X-Real-IP"];
 
       foreach (var header in headersToCheck)
       {
@@ -235,4 +237,4 @@ private static bool IsValidIpAddress(string? ipAddress)
       return !string.IsNullOrWhiteSpace(ipAddress) && IPAddress.TryParse(ipAddress, out var parsed)
                                                    && !parsed.IsIPv6UniqueLocal && ipAddress != "::1";
    }
-}
+}

src/Pandatech.VerticalSlices/wwwroot/assets/css/panda-style.css

@@ -85,7 +85,7 @@ div.topbar {
     width: 100%;
     top: 0;
     border-bottom: 1px solid #ffffff;
-    z-index: 1000000;
+    z-index: 1000;
 }
 
 .swagger-ui {