Files
once-campfire/app/models/user.rb
T
Jeremy Daer 6cab924097 Remove push subscriptions on a password change, and post them again
A push subscription belongs to the user, not a session, so a device
signed out by a password change kept getting notifications. Changing
the password now removes every subscription along with the sessions,
in the same transaction.

A browser still signed in keeps its own subscription in its service
worker, so the notifications controller posts it once per session: the
bell names the session by a digest of its id, never its token, and the
browser remembers the last one it posted for. That post never
unsubscribes the browser when the server refuses it.

A request that authenticated just before the change could put a
subscription back after it. The create action now checks the session
still exists and saves in one immediate transaction, after validating
the endpoint outside it.
2026-10-19 12:39:03 -07:00

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class User < ApplicationRecord
include Avatar, Bannable, Bot, Mentionable, Role, Transferable
has_many :memberships, dependent: :delete_all
has_many :rooms, through: :memberships
has_many :reachable_messages, through: :rooms, source: :messages
has_many :messages, dependent: :destroy, foreign_key: :creator_id
has_many :push_subscriptions, class_name: "Push::Subscription", dependent: :delete_all
has_many :boosts, dependent: :destroy, foreign_key: :booster_id
has_many :searches, dependent: :delete_all
has_many :sessions, dependent: :destroy
has_many :bans, dependent: :destroy
enum :status, %i[ active deactivated banned ], default: :active
has_secure_password validations: false
validate :password_challenge_matches, unless: -> { password_challenge.nil? }
after_create_commit :grant_membership_to_open_rooms
after_update :sign_out_all_sessions, if: :saved_change_to_password_digest?
scope :ordered, -> { order("LOWER(name)") }
scope :filtered_by, ->(query) { where("name like ?", "%#{query}%") }
def initials
name.scan(/\b\w/).join
end
def title
[ name, bio ].compact_blank.join(" – ")
end
def deactivate
transaction do
close_remote_connections
memberships.without_direct_rooms.delete_all
push_subscriptions.delete_all
searches.delete_all
sessions.delete_all
update! status: :deactivated, email_address: deactived_email_address
end
end
def reset_remote_connections
close_remote_connections reconnect: true
end
private
# The profile sets password_challenge whenever it changes the password; scripts that reset one don't.
def password_challenge_matches
unless password_digest_was.present? && BCrypt::Password.new(password_digest_was).is_password?(password_challenge)
errors.add :password_challenge, :invalid
end
end
# A new password is how someone shuts out whoever else got into their account, so it ends every session, copies
# of the changing browser's cookie included, and every push subscription; browsers still signed in post theirs
# again. Connections close once that commits, registered on the transaction because a later save in it would
# replace the saved change an after_commit condition reads.
def sign_out_all_sessions
sessions.delete_all
push_subscriptions.delete_all
self.class.current_transaction.after_commit { disconnect_signed_out_sessions }
end
# The password is saved by now, so a realtime service that can't be reached mustn't fail the change.
def disconnect_signed_out_sessions
reset_remote_connections
rescue => error
Rails.logger.warn "Could not disconnect remote connections after a password change: #{error.class}"
end
# One statement, which SQLite runs under the write lock, so no room is closed between reading the open ones and
# inserting. A room that Room#destroy_later closes is either closed before, and skipped, or after, and takes this
# membership away with the others. A room that granted itself to every user when it was created is skipped too,
# as insert_all did.
def grant_membership_to_open_rooms
now = Time.current
Membership.connection.execute Membership.sanitize_sql([ <<~SQL, id, now, now ])
insert into memberships (room_id, user_id, created_at, updated_at)
select id, ?, ?, ? from rooms where type = 'Rooms::Open'
on conflict do nothing
SQL
end
def deactived_email_address
email_address&.gsub(/@/, "-deactivated-#{SecureRandom.uuid}@")
end
def close_remote_connections(reconnect: false)
ActionCable.server.remote_connections.where(current_user: self).disconnect reconnect: reconnect
end
end