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Redmine/app/models/user.rb

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# Redmine - project management software
# Copyright (C) 2006-2011 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.
require "digest/sha1"
class User < Principal
include Redmine::SafeAttributes
# Account statuses
STATUS_ANONYMOUS = 0
STATUS_ACTIVE = 1
STATUS_REGISTERED = 2
STATUS_LOCKED = 3
# Different ways of displaying/sorting users
USER_FORMATS = {
:firstname_lastname => {:string => '#{firstname} #{lastname}', :order => %w(firstname lastname id)},
:firstname => {:string => '#{firstname}', :order => %w(firstname id)},
:lastname_firstname => {:string => '#{lastname} #{firstname}', :order => %w(lastname firstname id)},
:lastname_coma_firstname => {:string => '#{lastname}, #{firstname}', :order => %w(lastname firstname id)},
:username => {:string => '#{login}', :order => %w(login id)},
}
MAIL_NOTIFICATION_OPTIONS = [
['all', :label_user_mail_option_all],
['selected', :label_user_mail_option_selected],
['only_my_events', :label_user_mail_option_only_my_events],
['only_assigned', :label_user_mail_option_only_assigned],
['only_owner', :label_user_mail_option_only_owner],
['none', :label_user_mail_option_none]
]
has_and_belongs_to_many :groups, :after_add => Proc.new {|user, group| group.user_added(user)},
:after_remove => Proc.new {|user, group| group.user_removed(user)}
has_many :changesets, :dependent => :nullify
has_one :preference, :dependent => :destroy, :class_name => 'UserPreference'
has_one :rss_token, :class_name => 'Token', :conditions => "action='feeds'"
has_one :api_token, :class_name => 'Token', :conditions => "action='api'"
belongs_to :auth_source
# Active non-anonymous users scope
named_scope :active, :conditions => "#{User.table_name}.status = #{STATUS_ACTIVE}"
named_scope :logged, :conditions => "#{User.table_name}.status <> #{STATUS_ANONYMOUS}"
named_scope :status, lambda {|arg| arg.blank? ? {} : {:conditions => {:status => arg.to_i}} }
named_scope :like, lambda {|arg|
if arg.blank?
{}
else
pattern = "%#{arg.to_s.strip.downcase}%"
{:conditions => ["LOWER(login) LIKE :p OR LOWER(firstname) LIKE :p OR LOWER(lastname) LIKE :p OR LOWER(mail) LIKE :p", {:p => pattern}]}
end
}
acts_as_customizable
attr_accessor :password, :password_confirmation
attr_accessor :last_before_login_on
# Prevents unauthorized assignments
attr_protected :login, :admin, :password, :password_confirmation, :hashed_password
validates_presence_of :login, :firstname, :lastname, :mail, :if => Proc.new { |user| !user.is_a?(AnonymousUser) }
validates_uniqueness_of :login, :if => Proc.new { |user| !user.login.blank? }, :case_sensitive => false
validates_uniqueness_of :mail, :if => Proc.new { |user| !user.mail.blank? }, :case_sensitive => false
# Login must contain lettres, numbers, underscores only
validates_format_of :login, :with => /^[a-z0-9_\-@\.]*$/i
validates_length_of :login, :maximum => 30
validates_length_of :firstname, :lastname, :maximum => 30
validates_format_of :mail, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i, :allow_blank => true
validates_length_of :mail, :maximum => 60, :allow_nil => true
validates_confirmation_of :password, :allow_nil => true
validates_inclusion_of :mail_notification, :in => MAIL_NOTIFICATION_OPTIONS.collect(&:first), :allow_blank => true
validate :validate_password_length
before_create :set_mail_notification
before_save :update_hashed_password
before_destroy :remove_references_before_destroy
named_scope :in_group, lambda {|group|
group_id = group.is_a?(Group) ? group.id : group.to_i
{ :conditions => ["#{User.table_name}.id IN (SELECT gu.user_id FROM #{table_name_prefix}groups_users#{table_name_suffix} gu WHERE gu.group_id = ?)", group_id] }
}
named_scope :not_in_group, lambda {|group|
group_id = group.is_a?(Group) ? group.id : group.to_i
{ :conditions => ["#{User.table_name}.id NOT IN (SELECT gu.user_id FROM #{table_name_prefix}groups_users#{table_name_suffix} gu WHERE gu.group_id = ?)", group_id] }
}
def set_mail_notification
self.mail_notification = Setting.default_notification_option if self.mail_notification.blank?
true
end
def update_hashed_password
# update hashed_password if password was set
if self.password && self.auth_source_id.blank?
salt_password(password)
end
end
def reload(*args)
@name = nil
@projects_by_role = nil
super
end
def mail=(arg)
write_attribute(:mail, arg.to_s.strip)
end
def identity_url=(url)
if url.blank?
write_attribute(:identity_url, '')
else
begin
write_attribute(:identity_url, OpenIdAuthentication.normalize_identifier(url))
rescue OpenIdAuthentication::InvalidOpenId
# Invlaid url, don't save
end
end
self.read_attribute(:identity_url)
end
# Returns the user that matches provided login and password, or nil
def self.try_to_login(login, password)
# Make sure no one can sign in with an empty password
return nil if password.to_s.empty?
user = find_by_login(login)
if user
# user is already in local database
return nil if !user.active?
if user.auth_source
# user has an external authentication method
return nil unless user.auth_source.authenticate(login, password)
else
# authentication with local password
return nil unless user.check_password?(password)
end
else
# user is not yet registered, try to authenticate with available sources
attrs = AuthSource.authenticate(login, password)
if attrs
user = new(attrs)
user.login = login
user.language = Setting.default_language
if user.save
user.reload
logger.info("User '#{user.login}' created from external auth source: #{user.auth_source.type} - #{user.auth_source.name}") if logger && user.auth_source
end
end
end
user.update_attribute(:last_login_on, Time.now) if user && !user.new_record?
user
rescue => text
raise text
end
# Returns the user who matches the given autologin +key+ or nil
def self.try_to_autologin(key)
tokens = Token.find_all_by_action_and_value('autologin', key)
# Make sure there's only 1 token that matches the key
if tokens.size == 1
token = tokens.first
if (token.created_on > Setting.autologin.to_i.day.ago) && token.user && token.user.active?
token.user.update_attribute(:last_login_on, Time.now)
token.user
end
end
end
def self.name_formatter(formatter = nil)
USER_FORMATS[formatter || Setting.user_format] || USER_FORMATS[:firstname_lastname]
end
# Returns an array of fields names than can be used to make an order statement for users
# according to how user names are displayed
# Examples:
#
# User.fields_for_order_statement => ['users.login', 'users.id']
# User.fields_for_order_statement('authors') => ['authors.login', 'authors.id']
def self.fields_for_order_statement(table=nil)
table ||= table_name
name_formatter[:order].map {|field| "#{table}.#{field}"}
end
# Return user's full name for display
def name(formatter = nil)
f = self.class.name_formatter(formatter)
if formatter
eval('"' + f[:string] + '"')
else
@name ||= eval('"' + f[:string] + '"')
end
end
def active?
self.status == STATUS_ACTIVE
end
def registered?
self.status == STATUS_REGISTERED
end
def locked?
self.status == STATUS_LOCKED
end
def activate
self.status = STATUS_ACTIVE
end
def register
self.status = STATUS_REGISTERED
end
def lock
self.status = STATUS_LOCKED
end
def activate!
update_attribute(:status, STATUS_ACTIVE)
end
def register!
update_attribute(:status, STATUS_REGISTERED)
end
def lock!
update_attribute(:status, STATUS_LOCKED)
end
# Returns true if +clear_password+ is the correct user's password, otherwise false
def check_password?(clear_password)
if auth_source_id.present?
auth_source.authenticate(self.login, clear_password)
else
User.hash_password("#{salt}#{User.hash_password clear_password}") == hashed_password
end
end
# Generates a random salt and computes hashed_password for +clear_password+
# The hashed password is stored in the following form: SHA1(salt + SHA1(password))
def salt_password(clear_password)
self.salt = User.generate_salt
self.hashed_password = User.hash_password("#{salt}#{User.hash_password clear_password}")
end
# Does the backend storage allow this user to change their password?
def change_password_allowed?
return true if auth_source_id.blank?
return auth_source.allow_password_changes?
end
# Generate and set a random password. Useful for automated user creation
# Based on Token#generate_token_value
#
def random_password
chars = ("a".."z").to_a + ("A".."Z").to_a + ("0".."9").to_a
password = ''
40.times { |i| password << chars[rand(chars.size-1)] }
self.password = password
self.password_confirmation = password
self
end
def pref
self.preference ||= UserPreference.new(:user => self)
end
def time_zone
@time_zone ||= (self.pref.time_zone.blank? ? nil : ActiveSupport::TimeZone[self.pref.time_zone])
end
def wants_comments_in_reverse_order?
self.pref[:comments_sorting] == 'desc'
end
# Return user's RSS key (a 40 chars long string), used to access feeds
def rss_key
token = self.rss_token || Token.create(:user => self, :action => 'feeds')
token.value
end
# Return user's API key (a 40 chars long string), used to access the API
def api_key
token = self.api_token || self.create_api_token(:action => 'api')
token.value
end
# Return an array of project ids for which the user has explicitly turned mail notifications on
def notified_projects_ids
@notified_projects_ids ||= memberships.select {|m| m.mail_notification?}.collect(&:project_id)
end
def notified_project_ids=(ids)
Member.update_all("mail_notification = #{connection.quoted_false}", ['user_id = ?', id])
Member.update_all("mail_notification = #{connection.quoted_true}", ['user_id = ? AND project_id IN (?)', id, ids]) if ids && !ids.empty?
@notified_projects_ids = nil
notified_projects_ids
end
def valid_notification_options
self.class.valid_notification_options(self)
end
# Only users that belong to more than 1 project can select projects for which they are notified
def self.valid_notification_options(user=nil)
# Note that @user.membership.size would fail since AR ignores
# :include association option when doing a count
if user.nil? || user.memberships.length < 1
MAIL_NOTIFICATION_OPTIONS.reject {|option| option.first == 'selected'}
else
MAIL_NOTIFICATION_OPTIONS
end
end
# Find a user account by matching the exact login and then a case-insensitive
# version. Exact matches will be given priority.
def self.find_by_login(login)
# force string comparison to be case sensitive on MySQL
type_cast = (ActiveRecord::Base.connection.adapter_name == 'MySQL') ? 'BINARY' : ''
# First look for an exact match
user = first(:conditions => ["#{type_cast} login = ?", login])
# Fail over to case-insensitive if none was found
user ||= first(:conditions => ["#{type_cast} LOWER(login) = ?", login.to_s.downcase])
end
def self.find_by_rss_key(key)
token = Token.find_by_value(key)
token && token.user.active? ? token.user : nil
end
def self.find_by_api_key(key)
token = Token.find_by_action_and_value('api', key)
token && token.user.active? ? token.user : nil
end
# Makes find_by_mail case-insensitive
def self.find_by_mail(mail)
find(:first, :conditions => ["LOWER(mail) = ?", mail.to_s.downcase])
end
def to_s
name
end
# Returns the current day according to user's time zone
def today
if time_zone.nil?
Date.today
else
Time.now.in_time_zone(time_zone).to_date
end
end
def logged?
true
end
def anonymous?
!logged?
end
# Return user's roles for project
def roles_for_project(project)
roles = []
# No role on archived projects
return roles unless project && project.active?
if logged?
# Find project membership
membership = memberships.detect {|m| m.project_id == project.id}
if membership
roles = membership.roles
else
@role_non_member ||= Role.non_member
roles << @role_non_member
end
else
@role_anonymous ||= Role.anonymous
roles << @role_anonymous
end
roles
end
# Return true if the user is a member of project
def member_of?(project)
!roles_for_project(project).detect {|role| role.member?}.nil?
end
# Returns a hash of user's projects grouped by roles
def projects_by_role
return @projects_by_role if @projects_by_role
@projects_by_role = Hash.new {|h,k| h[k]=[]}
memberships.each do |membership|
membership.roles.each do |role|
@projects_by_role[role] << membership.project if membership.project
end
end
@projects_by_role.each do |role, projects|
projects.uniq!
end
@projects_by_role
end
# Returns true if user is arg or belongs to arg
def is_or_belongs_to?(arg)
if arg.is_a?(User)
self == arg
elsif arg.is_a?(Group)
arg.users.include?(self)
else
false
end
end
# Return true if the user is allowed to do the specified action on a specific context
# Action can be:
# * a parameter-like Hash (eg. :controller => 'projects', :action => 'edit')
# * a permission Symbol (eg. :edit_project)
# Context can be:
# * a project : returns true if user is allowed to do the specified action on this project
# * an array of projects : returns true if user is allowed on every project
# * nil with options[:global] set : check if user has at least one role allowed for this action,
# or falls back to Non Member / Anonymous permissions depending if the user is logged
def allowed_to?(action, context, options={}, &block)
if context && context.is_a?(Project)
# No action allowed on archived projects
return false unless context.active?
# No action allowed on disabled modules
return false unless context.allows_to?(action)
# Admin users are authorized for anything else
return true if admin?
roles = roles_for_project(context)
return false unless roles
roles.detect {|role|
(context.is_public? || role.member?) &&
role.allowed_to?(action) &&
(block_given? ? yield(role, self) : true)
}
elsif context && context.is_a?(Array)
# Authorize if user is authorized on every element of the array
context.map do |project|
allowed_to?(action, project, options, &block)
end.inject do |memo,allowed|
memo && allowed
end
elsif options[:global]
# Admin users are always authorized
return true if admin?
# authorize if user has at least one role that has this permission
roles = memberships.collect {|m| m.roles}.flatten.uniq
roles << (self.logged? ? Role.non_member : Role.anonymous)
roles.detect {|role|
role.allowed_to?(action) &&
(block_given? ? yield(role, self) : true)
}
else
false
end
end
# Is the user allowed to do the specified action on any project?
# See allowed_to? for the actions and valid options.
def allowed_to_globally?(action, options, &block)
allowed_to?(action, nil, options.reverse_merge(:global => true), &block)
end
safe_attributes 'login',
'firstname',
'lastname',
'mail',
'mail_notification',
'language',
'custom_field_values',
'custom_fields',
'identity_url'
safe_attributes 'status',
'auth_source_id',
:if => lambda {|user, current_user| current_user.admin?}
safe_attributes 'group_ids',
:if => lambda {|user, current_user| current_user.admin? && !user.new_record?}
# Utility method to help check if a user should be notified about an
# event.
#
# TODO: only supports Issue events currently
def notify_about?(object)
case mail_notification
when 'all'
true
when 'selected'
# user receives notifications for created/assigned issues on unselected projects
if object.is_a?(Issue) && (object.author == self || is_or_belongs_to?(object.assigned_to))
true
else
false
end
when 'none'
false
when 'only_my_events'
if object.is_a?(Issue) && (object.author == self || is_or_belongs_to?(object.assigned_to))
true
else
false
end
when 'only_assigned'
if object.is_a?(Issue) && is_or_belongs_to?(object.assigned_to)
true
else
false
end
when 'only_owner'
if object.is_a?(Issue) && object.author == self
true
else
false
end
else
false
end
end
def self.current=(user)
@current_user = user
end
def self.current
@current_user ||= User.anonymous
end
# Returns the anonymous user. If the anonymous user does not exist, it is created. There can be only
# one anonymous user per database.
def self.anonymous
anonymous_user = AnonymousUser.find(:first)
if anonymous_user.nil?
anonymous_user = AnonymousUser.create(:lastname => 'Anonymous', :firstname => '', :mail => '', :login => '', :status => 0)
raise 'Unable to create the anonymous user.' if anonymous_user.new_record?
end
anonymous_user
end
# Salts all existing unsalted passwords
# It changes password storage scheme from SHA1(password) to SHA1(salt + SHA1(password))
# This method is used in the SaltPasswords migration and is to be kept as is
def self.salt_unsalted_passwords!
transaction do
User.find_each(:conditions => "salt IS NULL OR salt = ''") do |user|
next if user.hashed_password.blank?
salt = User.generate_salt
hashed_password = User.hash_password("#{salt}#{user.hashed_password}")
User.update_all("salt = '#{salt}', hashed_password = '#{hashed_password}'", ["id = ?", user.id] )
end
end
end
protected
def validate_password_length
# Password length validation based on setting
if !password.nil? && password.size < Setting.password_min_length.to_i
errors.add(:password, :too_short, :count => Setting.password_min_length.to_i)
end
end
private
# Removes references that are not handled by associations
# Things that are not deleted are reassociated with the anonymous user
def remove_references_before_destroy
return if self.id.nil?
substitute = User.anonymous
Attachment.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
Comment.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
Issue.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
Issue.update_all 'assigned_to_id = NULL', ['assigned_to_id = ?', id]
Journal.update_all ['user_id = ?', substitute.id], ['user_id = ?', id]
JournalDetail.update_all ['old_value = ?', substitute.id.to_s], ["property = 'attr' AND prop_key = 'assigned_to_id' AND old_value = ?", id.to_s]
JournalDetail.update_all ['value = ?', substitute.id.to_s], ["property = 'attr' AND prop_key = 'assigned_to_id' AND value = ?", id.to_s]
Message.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
News.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
# Remove private queries and keep public ones
Query.delete_all ['user_id = ? AND is_public = ?', id, false]
Query.update_all ['user_id = ?', substitute.id], ['user_id = ?', id]
TimeEntry.update_all ['user_id = ?', substitute.id], ['user_id = ?', id]
Token.delete_all ['user_id = ?', id]
Watcher.delete_all ['user_id = ?', id]
WikiContent.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
WikiContent::Version.update_all ['author_id = ?', substitute.id], ['author_id = ?', id]
end
# Return password digest
def self.hash_password(clear_password)
Digest::SHA1.hexdigest(clear_password || "")
end
# Returns a 128bits random salt as a hex string (32 chars long)
def self.generate_salt
ActiveSupport::SecureRandom.hex(16)
end
end
class AnonymousUser < User
def validate_on_create
# There should be only one AnonymousUser in the database
errors.add :base, 'An anonymous user already exists.' if AnonymousUser.find(:first)
end
def available_custom_fields
[]
end
# Overrides a few properties
def logged?; false end
def admin; false end
def name(*args); I18n.t(:label_user_anonymous) end
def mail; nil end
def time_zone; nil end
def rss_key; nil end
# Anonymous user can not be destroyed
def destroy
false
end
end
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