refactored login process, added remember option for login

app/logical/session_loader.rb

@@ -0,0 +1,51 @@
+class SessionLoader
+  attr_reader :session, :cookies, :request
+  
+  def initialize(session, cookies, request)
+    @session = session
+    @cookies = cookies
+    @request = request
+  end
+  
+  def load
+    if session[:user_id]
+      load_session_user
+    elsif cookie_password_hash_valid?
+      load_cookie_user
+    end
+    
+    if CurrentUser.user
+      CurrentUser.user.unban! if ban_expired?
+    else
+      CurrentUser.user = AnonymousUser.new
+    end
+
+    set_time_zone
+  end
+
+private
+  
+  def load_session_user
+    CurrentUser.user = User.find_by_id(session[:user_id])
+    CurrentUser.ip_addr = request.remote_ip
+  end
+  
+  def load_cookie_user
+    CurrentUser.user = User.find_by_name(cookies[:user_name])
+    CurrentUser.ip_addr = request.remote_ip
+  end
+  
+  def ban_expired?
+    CurrentUser.user.is_banned? && CurrentUser.user.ban && CurrentUser.user.ban.expired?
+  end
+  
+  def cookie_password_hash_valid?
+    puts "cookie_password_hash=#{cookies[:cookie_password_hash]}"
+    cookies[:cookie_password_hash] && User.authenticate_cookie_hash(cookies[:user_name], cookies[:cookie_password_hash])
+  end
+  
+  def set_time_zone
+    Time.zone = CurrentUser.user.time_zone
+  end
+end
+