add user option for disabling tagged filenames

app/logical/anonymous_user.rb

@@ -249,6 +249,10 @@ class AnonymousUser
     false
   end
 
+  def disable_tagged_filenames?
+    false
+  end
+
   %w(member banned gold builder platinum janitor moderator admin).each do |name|
     define_method("is_#{name}?") do
       false

app/models/post.rb

@@ -99,27 +99,25 @@ class Post < ActiveRecord::Base
     end
 
     def file_url
-      if Danbooru.config.enable_seo_post_urls
-        # the seo tags should be stripped out by nginx
-        "/data/--#{seo_tags}--#{file_path_prefix}#{md5}.#{file_ext}"
-      else
-        "/data/#{file_path_prefix}#{md5}.#{file_ext}"
-      end
+      "/data/#{seo_tag_string}#{file_path_prefix}#{md5}.#{file_ext}"
     end
 
     def large_file_url
       if has_large?
-        if Danbooru.config.enable_seo_post_urls
-          # the seo tags should be stripped out by nginx
-          "/data/sample/--#{seo_tags}--#{file_path_prefix}#{Danbooru.config.large_image_prefix}#{md5}.#{large_file_ext}"
-        else
-          "/data/sample/#{file_path_prefix}#{Danbooru.config.large_image_prefix}#{md5}.#{large_file_ext}"
-        end 
+        "/data/sample/#{seo_tag_string}#{file_path_prefix}#{Danbooru.config.large_image_prefix}#{md5}.#{large_file_ext}"
       else
         file_url
       end
     end
 
+    def seo_tag_string
+      if Danbooru.config.enable_seo_post_urls && !CurrentUser.user.disable_tagged_filenames?
+        "--#{seo_tags}--"
+      else
+        nil
+      end
+    end
+
     def seo_tags
       @seo_tags ||= humanized_essential_tag_string.gsub(/[^a-z0-9]+/, "-").gsub(/(?:^-+)|(?:-+$)/, "").gsub(/-{2,}/, "-")
     end

app/models/user.rb

@@ -34,13 +34,14 @@ class User < ActiveRecord::Base
     can_upload_free
     disable_categorized_saved_searches
     is_super_voter
+    disable_tagged_filenames
   )
 
   include Danbooru::HasBitFlags
   has_bit_flags BOOLEAN_ATTRIBUTES, :field => "bit_prefs"
 
   attr_accessor :password, :old_password
-  attr_accessible :dmail_filter_attributes, :enable_privacy_mode, :enable_post_navigation, :new_post_navigation_layout, :password, :old_password, :password_confirmation, :password_hash, :email, :last_logged_in_at, :last_forum_read_at, :has_mail, :receive_email_notifications, :comment_threshold, :always_resize_images, :favorite_tags, :blacklisted_tags, :name, :ip_addr, :time_zone, :default_image_size, :enable_sequential_post_navigation, :per_page, :hide_deleted_posts, :style_usernames, :enable_auto_complete, :custom_style, :show_deleted_children, :disable_categorized_saved_searches, :as => [:moderator, :janitor, :gold, :member, :anonymous, :default, :builder, :admin]
+  attr_accessible :dmail_filter_attributes, :enable_privacy_mode, :enable_post_navigation, :new_post_navigation_layout, :password, :old_password, :password_confirmation, :password_hash, :email, :last_logged_in_at, :last_forum_read_at, :has_mail, :receive_email_notifications, :comment_threshold, :always_resize_images, :favorite_tags, :blacklisted_tags, :name, :ip_addr, :time_zone, :default_image_size, :enable_sequential_post_navigation, :per_page, :hide_deleted_posts, :style_usernames, :enable_auto_complete, :custom_style, :show_deleted_children, :disable_categorized_saved_searches, :disable_tagged_filenames, :as => [:moderator, :janitor, :gold, :member, :anonymous, :default, :builder, :admin]
   attr_accessible :level, :as => :admin
   validates_length_of :name, :within => 2..100, :on => :create
   validates_format_of :name, :with => /\A[^\s:]+\Z/, :on => :create, :message => "cannot have whitespace or colons"

app/views/users/edit.html.erb

@@ -72,6 +72,8 @@
 
         <%= f.input :enable_privacy_mode, :as => :select, :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false %>
 
+        <%= f.input :disable_tagged_filenames, :as => :select, :collection => [["No", "false"], ["Yes", "true"]], :include_blank => false %>
+
         <div class="input text optional field_with_hint">
           <label class="text optional" for="user_favorite_tags">Frequent tags</label>
           <textarea id="user_favorite_tags" class="text optional" rows="5" name="user[favorite_tags]" cols="40"><%= raw @user.favorite_tags %></textarea>