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mastodon/app/models/user.rb
ThibG 5524258da9
Fix “Email changed” notification sometimes having wrong e-mail (#13475)
* Fix “Email changed” notification sometimes having wrong e-mail

Fixes #6778

The root of the issue is that `send_devise_notification` was called before
the changes were properly commited to the database, causing the mailer to
pick previous values if running too early.

Devise's documentation provides guidance on how to handle that[1][2], however,
I have found it to not be working, as the following happens, in that order:
- `send_devise_notification` is called for the `email_changed` notification.
  In that case, `changed?` is false and `saved_changes?` is true, so
  if we use the former, we have the same issue.
- the `after_commit` hook is called
- `send_devise_notification` is called for the `confirmation_instructions`
  notification.
  In that case, `changed?` is still false, and `saved_changes?` still true,
  so if we use the latter, that second notification email is simply not
  going to be sent (as we would be queuing the notification *after*
  executing the after_commit hook).

This is because it may be called from either an `after_update` or
`after_commit` hook, the difference not being a call to `save` but the
transaction actually being committed to the database. This may arguably
be a bug in Devise, or Devise's notification.

The proposed workaround is inspired by Devise's documentation but checks
whether a transaction is open to make the call whether to immediately
send the notification or defer it to the `after_commit` hook.

[1]: https://www.rubydoc.info/github/plataformatec/devise/Devise%2FModels%2FAuthenticatable:send_devise_notification
[2]: 406915cb78/lib/devise/models/authenticatable.rb (L133-L194)

* Fix cases when sending notifications without changing the model

* Defer sending if and only if in transaction including current record
2020-04-15 16:13:44 +02:00

392 lines
12 KiB
Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: users
#
# id :bigint(8) not null, primary key
# email :string default(""), not null
# created_at :datetime not null
# updated_at :datetime not null
# encrypted_password :string default(""), not null
# reset_password_token :string
# reset_password_sent_at :datetime
# remember_created_at :datetime
# sign_in_count :integer default(0), not null
# current_sign_in_at :datetime
# last_sign_in_at :datetime
# current_sign_in_ip :inet
# last_sign_in_ip :inet
# admin :boolean default(FALSE), not null
# confirmation_token :string
# confirmed_at :datetime
# confirmation_sent_at :datetime
# unconfirmed_email :string
# locale :string
# encrypted_otp_secret :string
# encrypted_otp_secret_iv :string
# encrypted_otp_secret_salt :string
# consumed_timestep :integer
# otp_required_for_login :boolean default(FALSE), not null
# last_emailed_at :datetime
# otp_backup_codes :string is an Array
# filtered_languages :string default([]), not null, is an Array
# account_id :bigint(8) not null
# disabled :boolean default(FALSE), not null
# moderator :boolean default(FALSE), not null
# invite_id :bigint(8)
# remember_token :string
# chosen_languages :string is an Array
# created_by_application_id :bigint(8)
# approved :boolean default(TRUE), not null
#
class User < ApplicationRecord
include Settings::Extend
include UserRoles
# The home and list feeds will be stored in Redis for this amount
# of time, and status fan-out to followers will include only people
# within this time frame. Lowering the duration may improve performance
# if lots of people sign up, but not a lot of them check their feed
# every day. Raising the duration reduces the amount of expensive
# RegenerationWorker jobs that need to be run when those people come
# to check their feed
ACTIVE_DURATION = ENV.fetch('USER_ACTIVE_DAYS', 7).to_i.days.freeze
devise :two_factor_authenticatable,
otp_secret_encryption_key: Rails.configuration.x.otp_secret
devise :two_factor_backupable,
otp_number_of_backup_codes: 10
devise :registerable, :recoverable, :rememberable, :trackable, :validatable,
:confirmable
include Omniauthable
include PamAuthenticable
include LdapAuthenticable
belongs_to :account, inverse_of: :user
belongs_to :invite, counter_cache: :uses, optional: true
belongs_to :created_by_application, class_name: 'Doorkeeper::Application', optional: true
accepts_nested_attributes_for :account
has_many :applications, class_name: 'Doorkeeper::Application', as: :owner
has_many :backups, inverse_of: :user
has_many :invites, inverse_of: :user
has_many :markers, inverse_of: :user, dependent: :destroy
has_one :invite_request, class_name: 'UserInviteRequest', inverse_of: :user, dependent: :destroy
accepts_nested_attributes_for :invite_request, reject_if: ->(attributes) { attributes['text'].blank? }
validates :locale, inclusion: I18n.available_locales.map(&:to_s), if: :locale?
validates_with BlacklistedEmailValidator, on: :create
validates_with EmailMxValidator, if: :validate_email_dns?
validates :agreement, acceptance: { allow_nil: false, accept: [true, 'true', '1'] }, on: :create
scope :recent, -> { order(id: :desc) }
scope :pending, -> { where(approved: false) }
scope :approved, -> { where(approved: true) }
scope :confirmed, -> { where.not(confirmed_at: nil) }
scope :enabled, -> { where(disabled: false) }
scope :disabled, -> { where(disabled: true) }
scope :inactive, -> { where(arel_table[:current_sign_in_at].lt(ACTIVE_DURATION.ago)) }
scope :active, -> { confirmed.where(arel_table[:current_sign_in_at].gteq(ACTIVE_DURATION.ago)).joins(:account).where(accounts: { suspended_at: nil }) }
scope :matches_email, ->(value) { where(arel_table[:email].matches("#{value}%")) }
scope :matches_ip, ->(value) { left_joins(:session_activations).where('users.current_sign_in_ip <<= ?', value).or(left_joins(:session_activations).where('users.last_sign_in_ip <<= ?', value)).or(left_joins(:session_activations).where('session_activations.ip <<= ?', value)) }
scope :emailable, -> { confirmed.enabled.joins(:account).merge(Account.searchable) }
before_validation :sanitize_languages
before_create :set_approved
after_commit :send_pending_devise_notifications
# This avoids a deprecation warning from Rails 5.1
# It seems possible that a future release of devise-two-factor will
# handle this itself, and this can be removed from our User class.
attribute :otp_secret
has_many :session_activations, dependent: :destroy
delegate :auto_play_gif, :default_sensitive, :unfollow_modal, :boost_modal, :delete_modal,
:reduce_motion, :system_font_ui, :noindex, :theme, :display_media, :hide_network,
:expand_spoilers, :default_language, :aggregate_reblogs, :show_application,
:advanced_layout, :use_blurhash, :use_pending_items, :trends, :crop_images,
to: :settings, prefix: :setting, allow_nil: false
attr_reader :invite_code
attr_writer :external
def confirmed?
confirmed_at.present?
end
def invited?
invite_id.present?
end
def valid_invitation?
invite_id.present? && invite.valid_for_use?
end
def disable!
update!(disabled: true)
end
def enable!
update!(disabled: false)
end
def confirm
new_user = !confirmed?
self.approved = true if open_registrations?
super
if new_user && approved?
prepare_new_user!
elsif new_user
notify_staff_about_pending_account!
end
end
def confirm!
new_user = !confirmed?
self.approved = true if open_registrations?
skip_confirmation!
save!
prepare_new_user! if new_user && approved?
end
def pending?
!approved?
end
def active_for_authentication?
true
end
def functional?
confirmed? && approved? && !disabled? && !account.suspended? && account.moved_to_account_id.nil?
end
def unconfirmed_or_pending?
!(confirmed? && approved?)
end
def inactive_message
!approved? ? :pending : super
end
def approve!
return if approved?
update!(approved: true)
prepare_new_user!
end
def update_tracked_fields!(request)
super
prepare_returning_user!
end
def disable_two_factor!
self.otp_required_for_login = false
otp_backup_codes&.clear
save!
end
def setting_default_privacy
settings.default_privacy || (account.locked? ? 'private' : 'public')
end
def allows_digest_emails?
settings.notification_emails['digest']
end
def allows_report_emails?
settings.notification_emails['report']
end
def allows_pending_account_emails?
settings.notification_emails['pending_account']
end
def allows_trending_tag_emails?
settings.notification_emails['trending_tag']
end
def hides_network?
@hides_network ||= settings.hide_network
end
def aggregates_reblogs?
@aggregates_reblogs ||= settings.aggregate_reblogs
end
def shows_application?
@shows_application ||= settings.show_application
end
def token_for_app(a)
return nil if a.nil? || a.owner != self
Doorkeeper::AccessToken
.find_or_create_by(application_id: a.id, resource_owner_id: id) do |t|
t.scopes = a.scopes
t.expires_in = Doorkeeper.configuration.access_token_expires_in
t.use_refresh_token = Doorkeeper.configuration.refresh_token_enabled?
end
end
def activate_session(request)
session_activations.activate(session_id: SecureRandom.hex,
user_agent: request.user_agent,
ip: request.remote_ip).session_id
end
def clear_other_sessions(id)
session_activations.exclusive(id)
end
def session_active?(id)
session_activations.active? id
end
def web_push_subscription(session)
session.web_push_subscription.nil? ? nil : session.web_push_subscription
end
def invite_code=(code)
self.invite = Invite.find_by(code: code) if code.present?
@invite_code = code
end
def password_required?
return false if external?
super
end
def send_reset_password_instructions
return false if encrypted_password.blank?
super
end
def reset_password!(new_password, new_password_confirmation)
return false if encrypted_password.blank?
super
end
def show_all_media?
setting_display_media == 'show_all'
end
def hide_all_media?
setting_display_media == 'hide_all'
end
def recent_ips
@recent_ips ||= begin
arr = []
session_activations.each do |session_activation|
arr << [session_activation.updated_at, session_activation.ip]
end
arr << [current_sign_in_at, current_sign_in_ip] if current_sign_in_ip.present?
arr << [last_sign_in_at, last_sign_in_ip] if last_sign_in_ip.present?
arr.sort_by { |pair| pair.first || Time.now.utc }.uniq(&:last).reverse!
end
end
protected
def send_devise_notification(notification, *args)
# This method can be called in `after_update` and `after_commit` hooks,
# but we must make sure the mailer is actually called *after* commit,
# otherwise it may work on stale data. To do this, figure out if we are
# within a transaction.
if ActiveRecord::Base.connection.current_transaction.try(:records)&.include?(self)
pending_devise_notifications << [notification, args]
else
render_and_send_devise_message(notification, *args)
end
end
private
def send_pending_devise_notifications
pending_devise_notifications.each do |notification, args|
render_and_send_devise_message(notification, *args)
end
# Empty the pending notifications array because the
# after_commit hook can be called multiple times which
# could cause multiple emails to be sent.
pending_devise_notifications.clear
end
def pending_devise_notifications
@pending_devise_notifications ||= []
end
def render_and_send_devise_message(notification, *args)
devise_mailer.send(notification, self, *args).deliver_later
end
def set_approved
self.approved = open_registrations? || valid_invitation? || external?
end
def open_registrations?
Setting.registrations_mode == 'open'
end
def external?
!!@external
end
def sanitize_languages
return if chosen_languages.nil?
chosen_languages.reject!(&:blank?)
self.chosen_languages = nil if chosen_languages.empty?
end
def prepare_new_user!
BootstrapTimelineWorker.perform_async(account_id)
ActivityTracker.increment('activity:accounts:local')
UserMailer.welcome(self).deliver_later
end
def prepare_returning_user!
ActivityTracker.record('activity:logins', id)
regenerate_feed! if needs_feed_update?
end
def notify_staff_about_pending_account!
User.staff.includes(:account).each do |u|
next unless u.allows_pending_account_emails?
AdminMailer.new_pending_account(u.account, self).deliver_later
end
end
def regenerate_feed!
return unless Redis.current.setnx("account:#{account_id}:regeneration", true)
Redis.current.expire("account:#{account_id}:regeneration", 1.day.seconds)
RegenerationWorker.perform_async(account_id)
end
def needs_feed_update?
last_sign_in_at < ACTIVE_DURATION.ago
end
def validate_email_dns?
email_changed? && !(Rails.env.test? || Rails.env.development?)
end
end