about summary refs log tree commit diff
path: root/app/models/account.rb
blob: a93a0668a55e300ca89380732e2f6050be53ffa1 (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
# frozen_string_literal: true

class Account < ApplicationRecord
  include Targetable
  include PgSearch

  MENTION_RE = /(?:^|[^\/\w])@([a-z0-9_]+(?:@[a-z0-9\.\-]+)?)/i
  IMAGE_MIME_TYPES = ['image/jpeg', 'image/png', 'image/gif'].freeze

  # Local users
  has_one :user, inverse_of: :account
  validates :username, presence: true, format: { with: /\A[a-z0-9_]+\z/i, message: 'only letters, numbers and underscores' }, uniqueness: { scope: :domain, case_sensitive: false }, length: { maximum: 30 }, if: 'local?'
  validates :username, presence: true, uniqueness: { scope: :domain, case_sensitive: true }, unless: 'local?'

  # Avatar upload
  has_attached_file :avatar, styles: { original: '120x120#' }, convert_options: { all: '-quality 80 -strip' }
  validates_attachment_content_type :avatar, content_type: IMAGE_MIME_TYPES
  validates_attachment_size :avatar, less_than: 2.megabytes

  # Header upload
  has_attached_file :header, styles: { original: '700x335#' }, convert_options: { all: '-quality 80 -strip' }
  validates_attachment_content_type :header, content_type: IMAGE_MIME_TYPES
  validates_attachment_size :header, less_than: 2.megabytes

  # Local user profile validations
  validates :display_name, length: { maximum: 30 }, if: 'local?'
  validates :note, length: { maximum: 160 }, if: 'local?'

  # 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

  # Follow relations
  has_many :follow_requests, dependent: :destroy

  has_many :active_relationships,  class_name: 'Follow', foreign_key: 'account_id',        dependent: :destroy
  has_many :passive_relationships, class_name: 'Follow', foreign_key: 'target_account_id', dependent: :destroy

  has_many :following, -> { order('follows.id desc') }, through: :active_relationships,  source: :target_account
  has_many :followers, -> { order('follows.id desc') }, through: :passive_relationships, source: :account

  # Block relationships
  has_many :block_relationships, class_name: 'Block', foreign_key: 'account_id', dependent: :destroy
  has_many :blocking, -> { order('blocks.id desc') }, through: :block_relationships, source: :target_account

  # Media
  has_many :media_attachments, dependent: :destroy

  # PuSH subscriptions
  has_many :subscriptions, dependent: :destroy

  pg_search_scope :search_for, against: { display_name: 'A', username: 'B', domain: 'C' },
                               using: { tsearch: { prefix: true } }

  scope :remote, -> { where.not(domain: nil) }
  scope :local, -> { where(domain: nil) }
  scope :without_followers, -> { where('(select count(f.id) from follows as f where f.target_account_id = accounts.id) = 0') }
  scope :with_followers, -> { where('(select count(f.id) from follows as f where f.target_account_id = accounts.id) > 0') }
  scope :expiring, ->(time) { where(subscription_expires_at: nil).or(where('subscription_expires_at < ?', time)).remote.with_followers }
  scope :silenced, -> { where(silenced: true) }
  scope :suspended, -> { where(suspended: true) }
  scope :recent, -> { reorder(id: :desc) }
  scope :alphabetic, -> { order(domain: :asc, username: :asc) }

  def follow!(other_account)
    active_relationships.where(target_account: other_account).first_or_create!(target_account: other_account)
  end

  def block!(other_account)
    block_relationships.where(target_account: other_account).first_or_create!(target_account: other_account)
  end

  def unfollow!(other_account)
    follow = active_relationships.find_by(target_account: other_account)
    follow&.destroy
  end

  def unblock!(other_account)
    block = block_relationships.find_by(target_account: other_account)
    block&.destroy
  end

  def following?(other_account)
    following.include?(other_account)
  end

  def blocking?(other_account)
    blocking.include?(other_account)
  end

  def requested?(other_account)
    follow_requests.where(target_account: other_account).exists?
  end

  def followers_domains
    followers.reorder('').select('DISTINCT accounts.domain').map(&:domain)
  end

  def local?
    domain.nil?
  end

  def acct
    local? ? username : "#{username}@#{domain}"
  end

  def subscribed?
    !subscription_expires_at.blank?
  end

  def favourited?(status)
    (status.reblog? ? status.reblog : status).favourites.where(account: self).count.positive?
  end

  def reblogged?(status)
    (status.reblog? ? status.reblog : status).reblogs.where(account: self).count.positive?
  end

  def keypair
    private_key.nil? ? OpenSSL::PKey::RSA.new(public_key) : OpenSSL::PKey::RSA.new(private_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_avatar!
    save!
  rescue ActiveRecord::RecordInvalid
    self.avatar              = nil
    self[:avatar_remote_url] = ''
    save!
  end

  def avatar_remote_url=(url)
    parsed_url = URI.parse(url)

    return if !%w(http https).include?(parsed_url.scheme) || parsed_url.host.empty? || self[:avatar_remote_url] == url

    self.avatar              = parsed_url
    self[:avatar_remote_url] = url
  rescue OpenURI::HTTPError => e
    Rails.logger.debug "Error fetching remote avatar: #{e}"
  end

  def object_type
    :person
  end

  def to_param
    username
  end

  class << self
    def find_local!(username)
      find_remote!(username, nil)
    end

    def find_remote!(username, domain)
      return if username.blank?
      where(arel_table[:username].matches(username.gsub(/[%_]/, '\\\\\0'))).where(domain.nil? ? { domain: nil } : arel_table[:domain].matches(domain.gsub(/[%_]/, '\\\\\0'))).take!
    end

    def find_local(username)
      find_local!(username)
    rescue ActiveRecord::RecordNotFound
      nil
    end

    def find_remote(username, domain)
      find_remote!(username, domain)
    rescue ActiveRecord::RecordNotFound
      nil
    end

    def following_map(target_account_ids, account_id)
      follow_mapping(Follow.where(target_account_id: target_account_ids, account_id: account_id), :target_account_id)
    end

    def followed_by_map(target_account_ids, account_id)
      follow_mapping(Follow.where(account_id: target_account_ids, target_account_id: account_id), :account_id)
    end

    def blocking_map(target_account_ids, account_id)
      follow_mapping(Block.where(target_account_id: target_account_ids, account_id: account_id), :target_account_id)
    end

    def requested_map(target_account_ids, account_id)
      follow_mapping(FollowRequest.where(target_account_id: target_account_ids, account_id: account_id), :target_account_id)
    end

    private

    def follow_mapping(query, field)
      query.pluck(field).inject({}) { |mapping, id| mapping[id] = true; mapping }
    end
  end

  before_create do
    if 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
  end
end