about summary refs log tree commit diff
path: root/app/models/account.rb
blob: 7243cb1a58fbac0a9f828f45c686f1265478c966 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
# 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
  include EmojiHelper

  # 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 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 domains
      reorder(nil).pluck('distinct accounts.domain')
    end

    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
  end

  before_create :generate_keys
  before_validation :normalize_domain
  before_validation :prepare_contents, if: :local?

  private

  def prepare_contents
    display_name&.strip!
    note&.strip!

    self.display_name = emojify(display_name)
    self.note         = emojify(note)
  end

  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