X-Git-Url: https://projects.mako.cc/source/selectricity-live/blobdiff_plain/5f51982916827b84d73bfa8f3a98a9ee1d48d3ce..132c17fac0edd8b6eec263f494b95beef3b4e6ac:/app/models/user.rb

diff --git a/app/models/user.rb b/app/models/user.rb
old mode 100755
new mode 100644
index 17f58a1..78266ad
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -1,8 +1,71 @@
+require 'digest/sha1'
 class User < ActiveRecord::Base
   has_many :elections
 
+  # Virtual attribute for the unencrypted password
+  attr_accessor :password
+  attr_accessor :current_user
+  
+  validates_presence_of     :login, :email
+  validates_presence_of     :password,                   :if => :password_required?
+  validates_presence_of     :password_confirmation,      :if => :password_required?
+  validates_length_of       :password, :within => 4..40, :if => :password_required?
+  validates_confirmation_of :password,                   :if => :password_required?
+  validates_length_of       :login,    :within => 3..40
+  validates_length_of       :email,    :within => 3..100
+  validates_uniqueness_of   :login, :email, :case_sensitive => false
+  before_save :encrypt_password
+
   def name
-    [ firstname, lastname].join(" ")
+     [ firstname, lastname].join(" ")
   end
-end
 
+  # Authenticates a user by their login name and unencrypted password.  Returns the user or nil.
+  def self.authenticate(login, password)
+    u = find_by_login(login) # need to get the salt
+    u && u.authenticated?(password) ? u : nil
+  end
+
+  # Encrypts some data with the salt.
+  def self.encrypt(password, salt)
+    Digest::SHA1.hexdigest("--#{salt}--#{password}--")
+  end
+
+  # Encrypts the password with the user salt
+  def encrypt(password)
+    self.class.encrypt(password, salt)
+  end
+
+  def authenticated?(password)
+    crypted_password == encrypt(password)
+  end
+
+  def remember_token?
+    remember_token_expires_at && Time.now.utc < remember_token_expires_at 
+  end
+
+  # These create and unset the fields required for remembering users between browser closes
+  def remember_me
+    self.remember_token_expires_at = 2.weeks.from_now.utc
+    self.remember_token            = encrypt("#{email}--#{remember_token_expires_at}")
+    save(false)
+  end
+
+  def forget_me
+    self.remember_token_expires_at = nil
+    self.remember_token            = nil
+    save(false)
+  end
+
+  protected
+    # before filter 
+    def encrypt_password
+      return if password.blank?
+      self.salt = Digest::SHA1.hexdigest("--#{Time.now.to_s}--#{login}--") if new_record?
+      self.crypted_password = encrypt(password)
+    end
+    
+    def password_required?
+      crypted_password.blank? || !password.blank?
+    end
+end