Just doing small code improvements, cleanup and typo fixes.

Author: jooni91

docs/Griesoft.AspNetCore.ReCaptcha.xml

@@ -7,6 +7,7 @@ internal class RecaptchaServiceConstants
     {
         internal const string GoogleRecaptchaEndpoint = "https://www.google.com/recaptcha/api/siteverify";
         internal const string TokenKeyName = "G-Recaptcha-Response";
+        internal const string TokenKeyNameLower = "g-recaptcha-response";
         internal const string SettingsSectionKey = "RecaptchaSettings";
     }
 }

src/ReCaptcha/Configuration/RecaptchaServiceConstants.cs

@@ -18,7 +18,6 @@ internal static class TagHelperOutputExtensions
     {
         private static readonly char[] SpaceChars = { '\u0020', '\u0009', '\u000A', '\u000C', '\u000D' };
 
-        [System.Diagnostics.CodeAnalysis.SuppressMessage("Globalization", "CA1307:Specify StringComparison", Justification = "<Pending>")]
         internal static string AddQueryString(string uri, IEnumerable<KeyValuePair<string, string>> queryString)
         {
             if (uri == null)

src/ReCaptcha/Extensions/TagHelperOutputExtensions.cs

@@ -39,7 +39,7 @@ public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionE
 
             ValidationResponse validationResponse;
 
-            if (!TryGetRecaptchaToken(context.HttpContext.Request, out string? token))
+            if (!ValidateRecaptchaFilter.TryGetRecaptchaToken(context.HttpContext.Request, out string? token))
             {
                 _logger.LogWarning(Resources.RecaptchaResponseTokenMissing);
 
@@ -57,7 +57,7 @@ public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionE
                 validationResponse = await _recaptchaService.ValidateRecaptchaResponse(token, GetRemoteIp(context)).ConfigureAwait(true);
             }
 
-            TryAddResponseToActionAguments(context, validationResponse);
+            ValidateRecaptchaFilter.TryAddResponseToActionAguments(context, validationResponse);
 
             if (!ShouldShortCircuit(context, validationResponse))
             {
@@ -71,19 +71,34 @@ public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionE
                 context.HttpContext.Connection.RemoteIpAddress.ToString() :
                 null;
         }
-        private bool TryGetRecaptchaToken(HttpRequest request, [NotNullWhen(true)] out string? token)
+        private bool ShouldShortCircuit(ActionExecutingContext context, ValidationResponse response)
+        {
+            if (!response.Success)
+            {
+                _logger.LogInformation(Resources.InvalidResponseTokenMessage);
+
+                if (OnValidationFailedAction == ValidationFailedAction.BlockRequest)
+                {
+                    context.Result = new RecaptchaValidationFailedResult();
+                    return true;
+                }
+            }
+
+            return false;
+        }
+        private static bool TryGetRecaptchaToken(HttpRequest request, [NotNullWhen(true)] out string? token)
         {
             if (request.Headers.ContainsKey(RecaptchaServiceConstants.TokenKeyName))
             {
                 token = request.Headers[RecaptchaServiceConstants.TokenKeyName];
             }
-            else if (request.HasFormContentType && request.Form.ContainsKey(RecaptchaServiceConstants.TokenKeyName.ToLowerInvariant()))
+            else if (request.HasFormContentType && request.Form.ContainsKey(RecaptchaServiceConstants.TokenKeyNameLower))
             {
-                token = request.Form[RecaptchaServiceConstants.TokenKeyName.ToLowerInvariant()];
+                token = request.Form[RecaptchaServiceConstants.TokenKeyNameLower];
             }
-            else if (request.Query.ContainsKey(RecaptchaServiceConstants.TokenKeyName.ToLowerInvariant()))
+            else if (request.Query.ContainsKey(RecaptchaServiceConstants.TokenKeyNameLower))
             {
-                token = request.Query[RecaptchaServiceConstants.TokenKeyName.ToLowerInvariant()];
+                token = request.Query[RecaptchaServiceConstants.TokenKeyNameLower];
             }
             else
             {
@@ -92,22 +107,7 @@ private bool TryGetRecaptchaToken(HttpRequest request, [NotNullWhen(true)] out s
 
             return token != null;
         }
-        private bool ShouldShortCircuit(ActionExecutingContext context, ValidationResponse response)
-        {
-            if (!response.Success)
-            {
-                _logger.LogInformation(Resources.InvalidResponseTokenMessage);
-
-                if (OnValidationFailedAction == ValidationFailedAction.BlockRequest)
-                {
-                    context.Result = new RecaptchaValidationFailedResult();
-                    return true;
-                }
-            }
-
-            return false;
-        }
-        private void TryAddResponseToActionAguments(ActionExecutingContext context, ValidationResponse response)
+        private static void TryAddResponseToActionAguments(ActionExecutingContext context, ValidationResponse response)
         {
             if (context.ActionArguments.Any(pair => pair.Value is ValidationResponse))
             {

src/ReCaptcha/Filters/ValidateRecaptchaFilter.cs

@@ -42,7 +42,7 @@ public class ValidationResponse
         public string Hostname { get; set; } = string.Empty;
 
         /// <summary>
-        /// List of <see cref="ValidationError"/>'s, if any occured.
+        /// List of <see cref="ValidationError"/>'s, if any occurred.
         /// </summary>
         [JsonIgnore]
         public IEnumerable<ValidationError> Errors => GetValidationErrors();