Better Captcha message.

src/NzbDrone.Core/Http/CloudFlare/CloudFlareCaptchaException.cs

@@ -15,5 +15,10 @@ namespace NzbDrone.Core.Http.CloudFlare
             Response = response;
             CaptchaRequest = captchaRequest;
         }
+
+        public bool IsExpired
+        {
+            get { return Response.Request.Cookies.ContainsKey("cf_clearance"); }
+        }
     }
 }

src/NzbDrone.Core/Http/CloudFlare/CloudFlareHttpInterceptor.cs

@@ -27,7 +27,7 @@ namespace NzbDrone.Core.Http.CloudFlare
         {
             if (response.StatusCode == HttpStatusCode.Forbidden && response.Content.Contains(_cloudFlareChallengeScript))
             {
-                _logger.Error("CloudFlare CAPTCHA block on {0}", response.Request.Url);
+                _logger.Debug("CloudFlare CAPTCHA block on {0}", response.Request.Url);
                 throw new CloudFlareCaptchaException(response, CreateCaptchaRequest(response));
             }
 

src/NzbDrone.Core/Indexers/HttpIndexerBase.cs

@@ -246,6 +246,18 @@ namespace NzbDrone.Core.Indexers
                 _indexerStatusService.RecordFailure(Definition.Id);
                 _logger.Warn("Invalid API Key for {0} {1}", this, url);
             }
+            catch (CloudFlareCaptchaException ex)
+            {
+                _indexerStatusService.RecordFailure(Definition.Id);
+                if (ex.IsExpired)
+                {
+                    _logger.Error(ex, "Expired CAPTCHA token for {0}, please refresh in indexer settings.", this);
+                }
+                else
+                {
+                    _logger.Error(ex, "CAPTCHA token required for {0}, check indexer settings.", this);
+                }
+            }
             catch (IndexerException ex)
             {
                 _indexerStatusService.RecordFailure(Definition.Id);
@@ -314,10 +326,17 @@ namespace NzbDrone.Core.Indexers
             {
                 _logger.Warn("Request limit reached");
             }
-            catch (CloudFlareCaptchaException)
+            catch (CloudFlareCaptchaException ex)
+            {
+                if (ex.IsExpired)
+                {
+                    return new ValidationFailure("CaptchaToken", "CloudFlare CAPTCHA token expired, please Refresh.");
+                }
+                else
                 {
                     return new ValidationFailure("CaptchaToken", "Site protected by CloudFlare CAPTCHA. Valid CAPTCHA token required.");
                 }
+            }
             catch (UnsupportedFeedException ex)
             {
                 _logger.Warn(ex, "Indexer feed is not supported");

src/UI/Form/CaptchaTemplate.hbs

@@ -3,12 +3,13 @@
 
     <div class="col-sm-5">
         <div class="input-group">
-            <input type="text" name="fields.{{order}}.value" validation-name="{{name}}" spellcheck="false" class="form-control x-captcha" readonly />
+            <input type="text" name="fields.{{order}}.value" validation-name="{{name}}" spellcheck="false" class="form-control x-captcha" readonly placeholder="(optional)" />
             <span class="input-group-btn"><button class="btn btn-primary x-captcha-refresh" title="Refresh CAPTCHA Token"><i class="icon-sonarr-refresh" /></button></span>
         </div>
     </div>
 
     <span class="col-sm-1 help-inline">
-        <i class="icon-sonarr-form-warning" title="Expires periodically and will need to be refreshed. Refreshing the CAPTCHA Token will embed a temporary Google reCaptcha widget on this page."/>
+        <i class="icon-sonarr-form-warning" title="Expires periodically and will need to be refreshed."/>
+        <i class="icon-sonarr-form-warning" title="Refreshing the CAPTCHA Token will embed a temporary Google reCaptcha widget on this page."/>
     </span>
 </div>