diff app/models/.svn/text-base/token.rb.svn-base @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/models/.svn/text-base/token.rb.svn-base	Fri Jul 23 15:52:44 2010 +0100
@@ -0,0 +1,51 @@
+# Redmine - project management software
+# Copyright (C) 2006-2009  Jean-Philippe Lang
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+class Token < ActiveRecord::Base
+  belongs_to :user
+  validates_uniqueness_of :value
+  
+  before_create :delete_previous_tokens
+  
+  @@validity_time = 1.day
+  
+  def before_create
+    self.value = Token.generate_token_value
+  end
+
+  # Return true if token has expired  
+  def expired?
+    return Time.now > self.created_on + @@validity_time
+  end
+  
+  # Delete all expired tokens
+  def self.destroy_expired
+    Token.delete_all ["action <> 'feeds' AND created_on < ?", Time.now - @@validity_time]
+  end
+  
+private
+  def self.generate_token_value
+    ActiveSupport::SecureRandom.hex(20)
+  end
+  
+  # Removes obsolete tokens (same user and action)
+  def delete_previous_tokens
+    if user
+      Token.delete_all(['user_id = ? AND action = ?', user.id, action])
+    end
+  end
+end