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AM mass assignment security attr_accessible and attr_protected now allow for scopes using :as => scope eg.

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attr_accessible :name
    attr_accessible :name, :admin, :as => :admin
This commit is contained in:
Josh Kalderimis
2011-04-23 12:50:29 +02:00
parent af1b48926f
commit 1054ebd613
4 changed files with 136 additions and 46 deletions
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121
activemodel/lib/active_model/mass_assignment_security.rb
View File

@@ -24,10 +24,7 @@ module ActiveModel
# include ActiveModel::MassAssignmentSecurity
#
# attr_accessible :first_name, :last_name
#
# def self.admin_accessible_attributes
# accessible_attributes + [ :plan_id ]
# end
# attr_accessible :first_name, :last_name, :plan_id, :as => :admin
#
# def update
# ...
@@ -37,19 +34,18 @@ module ActiveModel
#
# protected
#
# def account_params
# sanitize_for_mass_assignment(params[:account])
# end
#
# def mass_assignment_authorizer
# admin ? admin_accessible_attributes : super
# def scope
# scope = admin ? :admin : :default
# sanitize_for_mass_assignment(params[:account], scope)
# end
#
# end
#
module ClassMethods
# Attributes named in this macro are protected from mass-assignment
# whenever attributes are sanitized before assignment.
# whenever attributes are sanitized before assignment. A scope for the
# attributes is optional, if no scope is provided then :default is used.
# A scope can be defined by using the :as option.
#
# Mass-assignment to these attributes will simply be ignored, to assign
# to them you can use direct writer methods. This is meant to protect
@@ -60,36 +56,58 @@ module ActiveModel
# include ActiveModel::MassAssignmentSecurity
#
# attr_accessor :name, :credit_rating
# attr_protected :credit_rating
#
# def attributes=(values)
# sanitize_for_mass_assignment(values).each do |k, v|
# attr_protected :credit_rating, :last_login
# attr_protected :last_login, :as => :admin
#
# def assign_attributes(values, options = {})
# sanitize_for_mass_assignment(values, options[:as]).each do |k, v|
# send("#{k}=", v)
# end
# end
# end
#
# When using a :default scope :
#
# customer = Customer.new
# customer.attributes = { "name" => "David", "credit_rating" => "Excellent" }
# customer.assign_attributes({ "name" => "David", "credit_rating" => "Excellent", :last_login => 1.day.ago }, :as => :default)
# customer.name # => "David"
# customer.credit_rating # => nil
# customer.last_login # => nil
#
# customer.credit_rating = "Average"
# customer.credit_rating # => "Average"
#
# And using the :admin scope :
#
# customer = Customer.new
# customer.assign_attributes({ "name" => "David", "credit_rating" => "Excellent", :last_login => 1.day.ago }, :as => :admin)
# customer.name # => "David"
# customer.credit_rating # => "Excellent"
# customer.last_login # => nil
#
# To start from an all-closed default and enable attributes as needed,
# have a look at +attr_accessible+.
#
# Note that using <tt>Hash#except</tt> or <tt>Hash#slice</tt> in place of +attr_protected+
# to sanitize attributes won't provide sufficient protection.
def attr_protected(*names)
self._protected_attributes = self.protected_attributes + names
def attr_protected(*args)
options = args.extract_options!
scope = options[:as] || :default
self._protected_attributes = protected_attributes_configs.dup
self._protected_attributes[scope] = self.protected_attributes(scope) + args
self._active_authorizer = self._protected_attributes
end
# Specifies a white list of model attributes that can be set via
# mass-assignment.
#
# Like +attr_protected+, a scope for the attributes is optional,
# if no scope is provided then :default is used. A scope can be defined by
# using the :as option.
#
# This is the opposite of the +attr_protected+ macro: Mass-assignment
# will only set attributes in this list, to assign to the rest of
# attributes you can use direct writer methods. This is meant to protect
@@ -102,57 +120,90 @@ module ActiveModel
# include ActiveModel::MassAssignmentSecurity
#
# attr_accessor :name, :credit_rating
# attr_accessible :name
#
# def attributes=(values)
# sanitize_for_mass_assignment(values).each do |k, v|
# attr_accessible :name
# attr_accessible :name, :credit_rating, :as => :admin
#
# def assign_attributes(values, options = {})
# sanitize_for_mass_assignment(values, options[:as]).each do |k, v|
# send("#{k}=", v)
# end
# end
# end
#
# When using a :default scope :
#
# customer = Customer.new
# customer.attributes = { :name => "David", :credit_rating => "Excellent" }
# customer.assign_attributes({ "name" => "David", "credit_rating" => "Excellent", :last_login => 1.day.ago }, :as => :default)
# customer.name # => "David"
# customer.credit_rating # => nil
#
# customer.credit_rating = "Average"
# customer.credit_rating # => "Average"
#
# And using the :admin scope :
#
# customer = Customer.new
# customer.assign_attributes({ "name" => "David", "credit_rating" => "Excellent", :last_login => 1.day.ago }, :as => :admin)
# customer.name # => "David"
# customer.credit_rating # => "Excellent"
#
# Note that using <tt>Hash#except</tt> or <tt>Hash#slice</tt> in place of +attr_accessible+
# to sanitize attributes won't provide sufficient protection.
def attr_accessible(*names)
self._accessible_attributes = self.accessible_attributes + names
def attr_accessible(*args)
options = args.extract_options!
scope = options[:as] || :default
self._accessible_attributes = accessible_attributes_configs.dup
self._accessible_attributes[scope] = self.accessible_attributes(scope) + args
self._active_authorizer = self._accessible_attributes
end
def protected_attributes
self._protected_attributes ||= BlackList.new(attributes_protected_by_default).tap do |w|
w.logger = self.logger if self.respond_to?(:logger)
end
def protected_attributes(scope = :default)
protected_attributes_configs[scope]
end
def accessible_attributes
self._accessible_attributes ||= WhiteList.new.tap { |w| w.logger = self.logger if self.respond_to?(:logger) }
def accessible_attributes(scope = :default)
accessible_attributes_configs[scope]
end
def active_authorizer
self._active_authorizer ||= protected_attributes
def active_authorizers
self._active_authorizer ||= protected_attributes_configs
end
alias active_authorizer active_authorizers
def attributes_protected_by_default
[]
end
private
def protected_attributes_configs
self._protected_attributes ||= begin
default_black_list = BlackList.new(attributes_protected_by_default).tap do |w|
w.logger = self.logger if self.respond_to?(:logger)
end
Hash.new(default_black_list)
end
end
def accessible_attributes_configs
self._accessible_attributes ||= begin
default_white_list = WhiteList.new.tap { |w| w.logger = self.logger if self.respond_to?(:logger) }
Hash.new(default_white_list)
end
end
end
protected
def sanitize_for_mass_assignment(attributes)
mass_assignment_authorizer.sanitize(attributes)
def sanitize_for_mass_assignment(attributes, scope = :default)
mass_assignment_authorizer(scope).sanitize(attributes)
end
def mass_assignment_authorizer
self.class.active_authorizer
def mass_assignment_authorizer(scope = :default)
self.class.active_authorizer[scope]
end
end
end

39
activemodel/test/cases/mass_assignment_security_test.rb
View File

@@ -10,10 +10,27 @@ class MassAssignmentSecurityTest < ActiveModel::TestCase
assert_equal expected, sanitized
end
def test_only_moderator_scope_attribute_accessible
user = SpecialUser.new
expected = { "name" => "John Smith", "email" => "john@smith.com" }
sanitized = user.sanitize_for_mass_assignment(expected.merge("admin" => true), :moderator)
assert_equal expected, sanitized
sanitized = user.sanitize_for_mass_assignment({ "name" => "John Smith", "email" => "john@smith.com", "admin" => true })
assert_equal({}, sanitized)
end
def test_attributes_accessible
user = Person.new
expected = { "name" => "John Smith", "email" => "john@smith.com" }
sanitized = user.sanitize_for_mass_assignment(expected.merge("super_powers" => true))
sanitized = user.sanitize_for_mass_assignment(expected.merge("admin" => true))
assert_equal expected, sanitized
end
def test_admin_scoped_attributes_accessible
user = Person.new
expected = { "name" => "John Smith", "email" => "john@smith.com", "admin" => true }
sanitized = user.sanitize_for_mass_assignment(expected.merge("super_powers" => true), :admin)
assert_equal expected, sanitized
end
@@ -26,20 +43,30 @@ class MassAssignmentSecurityTest < ActiveModel::TestCase
def test_mass_assignment_protection_inheritance
assert_blank LoosePerson.accessible_attributes
assert_equal Set.new([ 'credit_rating', 'administrator']), LoosePerson.protected_attributes
assert_equal Set.new(['credit_rating', 'administrator']), LoosePerson.protected_attributes
assert_blank LoosePerson.accessible_attributes
assert_equal Set.new(['credit_rating']), LoosePerson.protected_attributes(:admin)
assert_blank LooseDescendant.accessible_attributes
assert_equal Set.new([ 'credit_rating', 'administrator', 'phone_number']), LooseDescendant.protected_attributes
assert_equal Set.new(['credit_rating', 'administrator', 'phone_number']), LooseDescendant.protected_attributes
assert_blank LooseDescendantSecond.accessible_attributes
assert_equal Set.new([ 'credit_rating', 'administrator', 'phone_number', 'name']), LooseDescendantSecond.protected_attributes,
assert_equal Set.new(['credit_rating', 'administrator', 'phone_number', 'name']), LooseDescendantSecond.protected_attributes,
'Running attr_protected twice in one class should merge the protections'
assert_blank TightPerson.protected_attributes - TightPerson.attributes_protected_by_default
assert_equal Set.new([ 'name', 'address' ]), TightPerson.accessible_attributes
assert_equal Set.new(['name', 'address']), TightPerson.accessible_attributes
assert_blank TightPerson.protected_attributes(:admin) - TightPerson.attributes_protected_by_default
assert_equal Set.new(['name', 'address', 'admin']), TightPerson.accessible_attributes(:admin)
assert_blank TightDescendant.protected_attributes - TightDescendant.attributes_protected_by_default
assert_equal Set.new([ 'name', 'address', 'phone_number' ]), TightDescendant.accessible_attributes
assert_equal Set.new(['name', 'address', 'phone_number']), TightDescendant.accessible_attributes
assert_blank TightDescendant.protected_attributes(:admin) - TightDescendant.attributes_protected_by_default
assert_equal Set.new(['name', 'address', 'admin', 'super_powers']), TightDescendant.accessible_attributes(:admin)
end
def test_mass_assignment_multiparameter_protector

11
activemodel/test/cases/secure_password_test.rb
View File

@@ -45,13 +45,14 @@ class SecurePasswordTest < ActiveModel::TestCase
end
test "visitor#password_digest should be protected against mass assignment" do
assert Visitor.active_authorizer.kind_of?(ActiveModel::MassAssignmentSecurity::BlackList)
assert Visitor.active_authorizer.include?(:password_digest)
assert Visitor.active_authorizers[:default].kind_of?(ActiveModel::MassAssignmentSecurity::BlackList)
assert Visitor.active_authorizers[:default].include?(:password_digest)
end
test "Administrator's mass_assignment_authorizer should be WhiteList" do
assert Administrator.active_authorizer.kind_of?(ActiveModel::MassAssignmentSecurity::WhiteList)
assert !Administrator.active_authorizer.include?(:password_digest)
assert Administrator.active_authorizer.include?(:name)
active_authorizer = Administrator.active_authorizers[:default]
assert active_authorizer.kind_of?(ActiveModel::MassAssignmentSecurity::WhiteList)
assert !active_authorizer.include?(:password_digest)
assert active_authorizer.include?(:name)
end
end

11
activemodel/test/models/mass_assignment_specific.rb
View File

@@ -5,9 +5,17 @@ class User
public :sanitize_for_mass_assignment
end
class SpecialUser
include ActiveModel::MassAssignmentSecurity
attr_accessible :name, :email, :as => :moderator
public :sanitize_for_mass_assignment
end
class Person
include ActiveModel::MassAssignmentSecurity
attr_accessible :name, :email
attr_accessible :name, :email, :admin, :as => :admin
public :sanitize_for_mass_assignment
end
@@ -32,6 +40,7 @@ end
class LoosePerson
include ActiveModel::MassAssignmentSecurity
attr_protected :credit_rating, :administrator
attr_protected :credit_rating, :as => :admin
end
class LooseDescendant < LoosePerson
@@ -46,6 +55,7 @@ end
class TightPerson
include ActiveModel::MassAssignmentSecurity
attr_accessible :name, :address
attr_accessible :name, :address, :admin, :as => :admin
def self.attributes_protected_by_default
["mobile_number"]
@@ -54,4 +64,5 @@ end
class TightDescendant < TightPerson
attr_accessible :phone_number
attr_accessible :super_powers, :as => :admin
end