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@elricstorm
Created January 17, 2010 19:45
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require 'digest/sha1'
class User < ActiveRecord::Base
# Virtual attribute for the unencrypted password
attr_accessor :password
validates_presence_of :login, :email, :first_name, :last_name
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 :first_name, :within => 3..40
validates_length_of :last_name, :within => 3..40
validates_length_of :email, :within => 3..100
validates_uniqueness_of :login, :email, :case_sensitive => false
before_save :encrypt_password
# prevents a user from submitting a crafted form that bypasses activation
# anything else you want your user to change should be added here.
attr_accessible :login, :email, :password, :password_confirmation, :first_name, :last_name
acts_as_state_machine :initial => :pending
state :passive
state :pending, :enter => :make_activation_code
state :active, :enter => :do_activate
state :suspended
state :deleted, :enter => :do_delete
event :register do
transitions :from => :passive, :to => :pending, :guard => Proc.new {|u| !(u.crypted_password.blank? && u.password.blank?) }
end
event :activate do
transitions :from => :pending, :to => :active
end
event :suspend do
transitions :from => [:passive, :pending, :active], :to => :suspended
end
event :delete do
transitions :from => [:passive, :pending, :active, :suspended], :to => :deleted
end
event :unsuspend do
transitions :from => :suspended, :to => :active, :guard => Proc.new {|u| !u.activated_at.blank? }
transitions :from => :suspended, :to => :pending, :guard => Proc.new {|u| !u.activation_code.blank? }
transitions :from => :suspended, :to => :passive
end
def self.force_activate_now(id)
user = self.find(id)
user.activation_code = nil
user.activated_at = Time.now.utc
user.state = 'active'
user.save!
end
# Authenticates a user by their login name and unencrypted password. Returns the user or nil.
def self.authenticate(login, password)
u = find_in_state :first, :active, :conditions => {: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
remember_me_for 2.weeks
end
def remember_me_for(time)
remember_me_until time.from_now.utc
end
def remember_me_until(time)
self.remember_token_expires_at = time
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
def forgot_password
@forgotten_password = true
self.make_password_reset_code
end
def reset_password
# First update the password_reset_code before setting the
# reset_password flag to avoid duplicate email notifications.
update_attributes(:password_reset_code => nil)
@reset_password = true
end
#used in user_observer
def recently_forgot_password?
@forgotten_password
end
def recently_reset_password?
@reset_password
end
def recently_activated?
@recent_active
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
def make_activation_code
self.deleted_at = nil
self.activation_code = Digest::SHA1.hexdigest( Time.now.to_s.split(//).sort_by {rand}.join )
end
def do_delete
self.deleted_at = Time.now.utc
end
def do_activate
self.activated_at = Time.now.utc
self.deleted_at = self.activation_code = nil
@recent_active = true
end
def make_password_reset_code
self.password_reset_code = Digest::SHA1.hexdigest( Time.now.to_s.split(//).sort_by {rand}.join )
end
# protected super user create method
def self.suadminmake(id)
user = self.find(id)
user.activation_code = nil
user.activated_at = Time.now.utc
user.state = 'active'
user.admin = true
user.super = true
user.save!
end
end
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