FEATURE: auto block fast typers

if tl0 enter text too fast they get automatically blocked, configurable

config/locales/server.en.yml

@@ -1078,6 +1078,8 @@ en:
 
     auto_respond_to_flag_actions: "Enable automatic reply when disposing a flag."
     min_first_post_typing_time: "Minimum amount of time in milliseconds a user must type during first post, if threshold is not met post will automatically enter the needs approval queue. Set to 0 to disable (not recommended)"
+    auto_block_fast_typers_on_first_post: "Automatically block users that do not meet min_first_post_typing_time"
+    auto_block_fast_typers_max_trust_level: "Maximum trust level to auto block fast typers"
 
     reply_by_email_enabled: "Enable replying to topics via email."
     reply_by_email_address: "Template for reply by email incoming email address, for example: %{reply_key}@reply.example.com or replies+%{reply_key}@example.com"

config/site_settings.yml

@@ -681,6 +681,8 @@ spam:
   num_flags_to_close_topic: 12
   auto_respond_to_flag_actions: true
   min_first_post_typing_time: 3000
+  auto_block_fast_typers_on_first_post: true
+  auto_block_fast_typers_max_trust_level: 0
 
 rate_limits:
   unique_posts_mins:

lib/new_post_manager.rb

@@ -28,23 +28,41 @@ class NewPostManager
     @sorted_handlers.sort_by! {|h| -h[:priority]}
   end
 
-  def self.user_needs_approval?(manager)
+  def self.is_fast_typer?(manager)
     user = manager.user
     args = manager.args
 
+    args[:first_post_checks] &&
+    user.post_count == 0 &&
+    args[:typing_duration_msecs].to_i < SiteSetting.min_first_post_typing_time
+  end
+
+  def self.user_needs_approval?(manager)
+    user = manager.user
+
     return false if user.staff?
 
     (user.post_count < SiteSetting.approve_post_count) ||
     (user.trust_level < SiteSetting.approve_unless_trust_level.to_i) ||
-    (
+    is_fast_typer?(manager)
-      args[:first_post_checks] &&
-      user.post_count == 0 &&
-      args[:typing_duration_msecs].to_i < SiteSetting.min_first_post_typing_time
-    )
   end
 
   def self.default_handler(manager)
-    manager.enqueue('default') if user_needs_approval?(manager)
+    if user_needs_approval?(manager)
+
+      result = manager.enqueue('default')
+
+      if  is_fast_typer?(manager) &&
+          SiteSetting.auto_block_fast_typers_on_first_post &&
+          SiteSetting.auto_block_fast_typers_max_trust_level <= manager.user.trust_level
+
+        manager.user.update_columns(blocked: true)
+
+      end
+
+      result
+
+    end
   end
 
   def self.queue_enabled?

spec/controllers/posts_controller_spec.rb

@@ -492,6 +492,8 @@ describe PostsController do
 
         expect(parsed["action"]).to eq("enqueued")
 
+        expect(user.blocked).to eq(true)
+
       end
 
       it 'creates the post' do