comparison .svn/pristine/23/23f046e7217770bca11bfe9989b755a158f48868.svn-base @ 1298:4f746d8966dd redmine_2.3_integration

Merge from redmine-2.3 branch to create new branch redmine-2.3-integration

+# Redmine - project management software
+# Copyright (C) 2006-2013  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, :generate_new_token
+
+  @@validity_time = 1.day
+
+  def generate_new_token
+    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 NOT IN (?) AND created_on < ?", ['feeds', 'api'], Time.now - @@validity_time]
+  end
+
+  # Returns the active user who owns the key for the given action
+  def self.find_active_user(action, key, validity_days=nil)
+    user = find_user(action, key, validity_days)
+    if user && user.active?
+      user
+    end
+  end
+
+  # Returns the user who owns the key for the given action
+  def self.find_user(action, key, validity_days=nil)
+    token = find_token(action, key, validity_days)
+    if token
+      token.user
+    end
+  end
+
+  # Returns the token for action and key with an optional
+  # validity duration (in number of days)
+  def self.find_token(action, key, validity_days=nil)
+    action = action.to_s
+    key = key.to_s
+    return nil unless action.present? && key =~ /\A[a-z0-9]+\z/i
+
+    token = Token.where(:action => action, :value => key).first
+    if token && (token.action == action) && (token.value == key) && token.user
+      if validity_days.nil? || (token.created_on > validity_days.days.ago)
+        token
+      end
+    end
+  end
+
+  def self.generate_token_value
+    Redmine::Utils.random_hex(20)
+  end
+
+  private
+
+  # 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