No more SEO spam from report tool that does not require login

app/site.rb

@@ -115,6 +115,11 @@ post '/site/:username/report' do |username|
 
   redirect request.referer if site.nil?
 
+  if !recaptcha_valid?
+    flash[:error] = 'Captcha was not filled out (or was filled out incorrectly)'
+    redirect request.referer
+  end
+
   report = Report.new site_id: site.id, type: params[:type], comments: params[:comments]
 
   if current_site
@@ -133,6 +138,8 @@ post '/site/:username/report' do |username|
     body: "Reported by #{report.reporting_site_id ? report.reporting_site.username : report.ip}: #{report.comments}"
   })
 
+  flash[:success] = "Thank you for the report, we will look into it."
+
   redirect request.referer
 end
 

views/site.erb

@@ -117,11 +117,14 @@
 
     <% if site != current_site %>
       <div class="report">
-        <a href="#report" data-toggle="modal">Report</a> | 
-        <% if current_site && current_site.is_blocking?(site) %>
-          <a href="#">Unblock</a>
-        <% else %>
-          <a href="#block" data-toggle="modal">Block</a>
+        <a href="#report" data-toggle="modal">Report</a>
+        <% if signed_in? %>
+          |
+          <% if current_site && current_site.is_blocking?(site) %>
+            <a href="#">Unblock</a>
+          <% else %>
+            <a href="#block" data-toggle="modal">Block</a>
+          <% end %>
         <% end %>
       </div>
     <% end %>
@@ -148,8 +151,13 @@
           <option value="other">Other</option>
         </select>
       </p>
-      <p>Comments:</p>
+      <p>Please describe the problem:</p>
       <textarea name="comments" type="text" style="width: 400px; margin-bottom: 20px;"></textarea>
+
+      <p>Please fill out the captcha so we know you're not a robot:</p>
+      <div class="recaptcha" style="margin-bottom: 20px">
+        <%== recaptcha_tag :challenge, ssl: request.ssl? %>
+      </div>
     </div>
     <div class="modal-footer">
       <button class="btn cancel" data-dismiss="modal" aria-hidden="true">Cancel</button>