add legacy artist xml api

app/controllers/legacy_controller.rb

@@ -21,11 +21,15 @@ class LegacyController < ApplicationController
   end
   
   def users
-    @users = User.search(params).limit(100)
+    @users = User.limit(100).search(params).paginate(params[:page])
   end
   
   def tags
-    @tags = Tag.search(params).limit(100)
+    @tags = Tag.limit(100).search(params).paginate(params[:page])
+  end
+  
+  def artists
+    @artists = Artist.limit(100).search(params[:search]).paginate(params[:page])
   end
   
   def unavailable

app/views/legacy/artists.xml.erb

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<artists type="array">
+  <% @artists.each do |artist| %>
+    <artist group_name="<%= artist.group_name %>" other_names="<%= artist.other_names %>" urls="<%= artist.urls.map {|x| x.url}.join(" ") %>" is_active="<%= artist.is_active? %>" name="<%= artist.name %>" updater_id="0" id="<%= artist.id %>" version="0"/>
+  <% end %>
+</artists>

config/routes.rb

@@ -201,6 +201,7 @@ Danbooru::Application.routes.draw do
 
   # legacy aliases
   match "/artist" => redirect {|params, req| "/artists?page=#{req.params[:page]}"}
+  match "/artist/index.xml", :controller => "legacy", :action => "artists"
   match "/artist/index" => redirect {|params, req| "/artists?page=#{req.params[:page]}"}
   match "/artist/show/:id" => redirect("/artists/%{id}")
   match "/artist/show" => redirect {|params, req| "/artists?name=#{CGI::escape(req.params[:name])}"}