nyastodon/app/models/account.rb
Eugen Rochko 4a618908e8 Account deletion (#3728)
* Add form for account deletion

* If avatar or header are gone from source, remove them

* Add option to have SuspendAccountService remove user record, add tests

* Exclude suspended accounts from search
2017-06-14 18:01:27 +02:00

263 lines
8.9 KiB
Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: accounts
#
# id :integer not null, primary key
# username :string default(""), not null
# domain :string
# secret :string default(""), not null
# private_key :text
# public_key :text default(""), not null
# remote_url :string default(""), not null
# salmon_url :string default(""), not null
# hub_url :string default(""), not null
# created_at :datetime not null
# updated_at :datetime not null
# note :text default(""), not null
# display_name :string default(""), not null
# uri :string default(""), not null
# url :string
# avatar_file_name :string
# avatar_content_type :string
# avatar_file_size :integer
# avatar_updated_at :datetime
# header_file_name :string
# header_content_type :string
# header_file_size :integer
# header_updated_at :datetime
# avatar_remote_url :string
# subscription_expires_at :datetime
# silenced :boolean default(FALSE), not null
# suspended :boolean default(FALSE), not null
# locked :boolean default(FALSE), not null
# header_remote_url :string default(""), not null
# statuses_count :integer default(0), not null
# followers_count :integer default(0), not null
# following_count :integer default(0), not null
# last_webfingered_at :datetime
#
class Account < ApplicationRecord
MENTION_RE = /(?:^|[^\/[:word:]])@([a-z0-9_]+(?:@[a-z0-9\.\-]+[a-z0-9]+)?)/i
include AccountAvatar
include AccountFinderConcern
include AccountHeader
include AccountInteractions
include Attachmentable
include Remotable
# Local users
has_one :user, inverse_of: :account
validates :username, presence: true
# Remote user validations
validates :username, uniqueness: { scope: :domain, case_sensitive: true }, if: -> { !local? && will_save_change_to_username? }
# Local user validations
validates :username, format: { with: /\A[a-z0-9_]+\z/i }, uniqueness: { scope: :domain, case_sensitive: false }, length: { maximum: 30 }, if: -> { local? && will_save_change_to_username? }
validates_with UnreservedUsernameValidator, if: -> { local? && will_save_change_to_username? }
validates :display_name, length: { maximum: 30 }, if: -> { local? && will_save_change_to_display_name? }
validates :note, length: { maximum: 160 }, if: -> { local? && will_save_change_to_note? }
# Timelines
has_many :stream_entries, inverse_of: :account, dependent: :destroy
has_many :statuses, inverse_of: :account, dependent: :destroy
has_many :favourites, inverse_of: :account, dependent: :destroy
has_many :mentions, inverse_of: :account, dependent: :destroy
has_many :notifications, inverse_of: :account, dependent: :destroy
# Media
has_many :media_attachments, dependent: :destroy
# PuSH subscriptions
has_many :subscriptions, dependent: :destroy
# Report relationships
has_many :reports
has_many :targeted_reports, class_name: 'Report', foreign_key: :target_account_id
scope :remote, -> { where.not(domain: nil) }
scope :local, -> { where(domain: nil) }
scope :without_followers, -> { where(followers_count: 0) }
scope :with_followers, -> { where('followers_count > 0') }
scope :expiring, ->(time) { where(subscription_expires_at: nil).or(where('subscription_expires_at < ?', time)).remote.with_followers }
scope :partitioned, -> { order('row_number() over (partition by domain)') }
scope :silenced, -> { where(silenced: true) }
scope :suspended, -> { where(suspended: true) }
scope :recent, -> { reorder(id: :desc) }
scope :alphabetic, -> { order(domain: :asc, username: :asc) }
scope :by_domain_accounts, -> { group(:domain).select(:domain, 'COUNT(*) AS accounts_count').order('accounts_count desc') }
scope :matches_username, ->(value) { where(arel_table[:username].matches("#{value}%")) }
scope :matches_display_name, ->(value) { where(arel_table[:display_name].matches("#{value}%")) }
delegate :email,
:current_sign_in_ip,
:current_sign_in_at,
:confirmed?,
:locale,
to: :user,
prefix: true,
allow_nil: true
delegate :filtered_languages, to: :user, prefix: false, allow_nil: true
def local?
domain.nil?
end
def acct
local? ? username : "#{username}@#{domain}"
end
def local_username_and_domain
"#{username}@#{Rails.configuration.x.local_domain}"
end
def to_webfinger_s
"acct:#{local_username_and_domain}"
end
def subscribed?
subscription_expires_at.present?
end
def followers_domains
followers.reorder(nil).pluck('distinct accounts.domain')
end
def keypair
OpenSSL::PKey::RSA.new(private_key || public_key)
end
def subscription(webhook_url)
OStatus2::Subscription.new(remote_url, secret: secret, lease_seconds: 86_400 * 30, webhook: webhook_url, hub: hub_url)
end
def save_with_optional_media!
save!
rescue ActiveRecord::RecordInvalid
self.avatar = nil
self.header = nil
self[:avatar_remote_url] = ''
self[:header_remote_url] = ''
save!
end
def object_type
:person
end
def to_param
username
end
def excluded_from_timeline_account_ids
Rails.cache.fetch("exclude_account_ids_for:#{id}") { blocking.pluck(:target_account_id) + blocked_by.pluck(:account_id) + muting.pluck(:target_account_id) }
end
def excluded_from_timeline_domains
Rails.cache.fetch("exclude_domains_for:#{id}") { domain_blocks.pluck(:domain) }
end
class << self
def triadic_closures(account, limit: 5, offset: 0)
sql = <<-SQL.squish
WITH first_degree AS (
SELECT target_account_id
FROM follows
WHERE account_id = :account_id
)
SELECT accounts.*
FROM follows
INNER JOIN accounts ON follows.target_account_id = accounts.id
WHERE
account_id IN (SELECT * FROM first_degree)
AND target_account_id NOT IN (SELECT * FROM first_degree)
AND target_account_id NOT IN (:excluded_account_ids)
AND accounts.suspended = false
GROUP BY target_account_id, accounts.id
ORDER BY count(account_id) DESC
OFFSET :offset
LIMIT :limit
SQL
excluded_account_ids = account.excluded_from_timeline_account_ids + [account.id]
find_by_sql(
[sql, { account_id: account.id, excluded_account_ids: excluded_account_ids, limit: limit, offset: offset }]
)
end
def search_for(terms, limit = 10)
textsearch, query = generate_query_for_search(terms)
sql = <<-SQL.squish
SELECT
accounts.*,
ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
FROM accounts
WHERE #{query} @@ #{textsearch}
AND accounts.suspended = false
ORDER BY rank DESC
LIMIT ?
SQL
find_by_sql([sql, limit])
end
def advanced_search_for(terms, account, limit = 10)
textsearch, query = generate_query_for_search(terms)
sql = <<-SQL.squish
SELECT
accounts.*,
(count(f.id) + 1) * ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
FROM accounts
LEFT OUTER JOIN follows AS f ON (accounts.id = f.account_id AND f.target_account_id = ?) OR (accounts.id = f.target_account_id AND f.account_id = ?)
WHERE #{query} @@ #{textsearch}
AND accounts.suspended = false
GROUP BY accounts.id
ORDER BY rank DESC
LIMIT ?
SQL
find_by_sql([sql, account.id, account.id, limit])
end
private
def generate_query_for_search(terms)
terms = Arel.sql(connection.quote(terms.gsub(/['?\\:]/, ' ')))
textsearch = "(setweight(to_tsvector('simple', accounts.display_name), 'A') || setweight(to_tsvector('simple', accounts.username), 'B') || setweight(to_tsvector('simple', coalesce(accounts.domain, '')), 'C'))"
query = "to_tsquery('simple', ''' ' || #{terms} || ' ''' || ':*')"
[textsearch, query]
end
def follow_mapping(query, field)
query.pluck(field).each_with_object({}) { |id, mapping| mapping[id] = true }
end
end
before_create :generate_keys
before_validation :normalize_domain
private
def generate_keys
return unless local?
keypair = OpenSSL::PKey::RSA.new(Rails.env.test? ? 1024 : 2048)
self.private_key = keypair.to_pem
self.public_key = keypair.public_key.to_pem
end
def normalize_domain
return if local?
self.domain = TagManager.instance.normalize_domain(domain)
end
end