summaryrefslogtreecommitdiff
path: root/app/models/namespace.rb
blob: e207ac3db4ea142b9ef3e80dd8d6d2fffed151cc (plain)
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
270
271
272
273
274
275
276
277
278
279
280
281
class Namespace < ActiveRecord::Base
  acts_as_paranoid

  include CacheMarkdownField
  include Sortable
  include Gitlab::ShellAdapter
  include Gitlab::CurrentSettings
  include Routable

  # Prevent users from creating unreasonably deep level of nesting.
  # The number 20 was taken based on maximum nesting level of
  # Android repo (15) + some extra backup.
  NUMBER_OF_ANCESTORS_ALLOWED = 20

  cache_markdown_field :description, pipeline: :description

  has_many :projects, dependent: :destroy
  has_many :project_statistics
  belongs_to :owner, class_name: "User"

  belongs_to :parent, class_name: "Namespace"
  has_many :children, class_name: "Namespace", foreign_key: :parent_id

  validates :owner, presence: true, unless: ->(n) { n.type == "Group" }
  validates :name,
    presence: true,
    uniqueness: { scope: :parent_id },
    length: { maximum: 255 },
    namespace_name: true

  validates :description, length: { maximum: 255 }
  validates :path,
    presence: true,
    length: { maximum: 255 },
    namespace: true

  validate :nesting_level_allowed

  delegate :name, to: :owner, allow_nil: true, prefix: true

  after_update :move_dir, if: :path_changed?
  after_commit :refresh_access_of_projects_invited_groups, on: :update, if: -> { previous_changes.key?('share_with_group_lock') }

  # Save the storage paths before the projects are destroyed to use them on after destroy
  before_destroy(prepend: true) { prepare_for_destroy }
  after_destroy :rm_dir

  scope :root, -> { where('type IS NULL') }

  scope :with_statistics, -> do
    joins('LEFT JOIN project_statistics ps ON ps.namespace_id = namespaces.id').
      group('namespaces.id').
      select(
        'namespaces.*',
        'COALESCE(SUM(ps.storage_size), 0) AS storage_size',
        'COALESCE(SUM(ps.repository_size), 0) AS repository_size',
        'COALESCE(SUM(ps.lfs_objects_size), 0) AS lfs_objects_size',
        'COALESCE(SUM(ps.build_artifacts_size), 0) AS build_artifacts_size',
      )
  end

  class << self
    def by_path(path)
      find_by('lower(path) = :value', value: path.downcase)
    end

    # Case insensetive search for namespace by path or name
    def find_by_path_or_name(path)
      find_by("lower(path) = :path OR lower(name) = :path", path: path.downcase)
    end

    # Searches for namespaces matching the given query.
    #
    # This method uses ILIKE on PostgreSQL and LIKE on MySQL.
    #
    # query - The search query as a String
    #
    # Returns an ActiveRecord::Relation
    def search(query)
      t = arel_table
      pattern = "%#{query}%"

      where(t[:name].matches(pattern).or(t[:path].matches(pattern)))
    end

    def clean_path(path)
      path = path.dup
      # Get the email username by removing everything after an `@` sign.
      path.gsub!(/@.*\z/,                "")
      # Remove everything that's not in the list of allowed characters.
      path.gsub!(/[^a-zA-Z0-9_\-\.]/,    "")
      # Remove trailing violations ('.atom', '.git', or '.')
      path.gsub!(/(\.atom|\.git|\.)*\z/, "")
      # Remove leading violations ('-')
      path.gsub!(/\A\-+/,                "")

      # Users with the great usernames of "." or ".." would end up with a blank username.
      # Work around that by setting their username to "blank", followed by a counter.
      path = "blank" if path.blank?

      counter = 0
      base = path
      while Namespace.find_by_path_or_name(path)
        counter += 1
        path = "#{base}#{counter}"
      end

      path
    end
  end

  def to_param
    full_path
  end

  def human_name
    owner_name
  end

  def move_dir
    if any_project_has_container_registry_tags?
      raise Gitlab::UpdatePathError.new('Namespace cannot be moved, because at least one project has tags in container registry')
    end

    # Move the namespace directory in all storages paths used by member projects
    repository_storage_paths.each do |repository_storage_path|
      # Ensure old directory exists before moving it
      gitlab_shell.add_namespace(repository_storage_path, path_was)

      unless gitlab_shell.mv_namespace(repository_storage_path, path_was, path)
        Rails.logger.error "Exception moving path #{repository_storage_path} from #{path_was} to #{path}"

        # if we cannot move namespace directory we should rollback
        # db changes in order to prevent out of sync between db and fs
        raise Gitlab::UpdatePathError.new('namespace directory cannot be moved')
      end
    end

    Gitlab::UploadsTransfer.new.rename_namespace(path_was, path)
    Gitlab::PagesTransfer.new.rename_namespace(path_was, path)

    remove_exports!

    # If repositories moved successfully we need to
    # send update instructions to users.
    # However we cannot allow rollback since we moved namespace dir
    # So we basically we mute exceptions in next actions
    begin
      send_update_instructions
    rescue
      # Returning false does not rollback after_* transaction but gives
      # us information about failing some of tasks
      false
    end
  end

  def any_project_has_container_registry_tags?
    projects.any?(&:has_container_registry_tags?)
  end

  def send_update_instructions
    projects.each do |project|
      project.send_move_instructions("#{path_was}/#{project.path}")
    end
  end

  def kind
    type == 'Group' ? 'group' : 'user'
  end

  def find_fork_of(project)
    projects.joins(:forked_project_link).find_by('forked_project_links.forked_from_project_id = ?', project.id)
  end

  def lfs_enabled?
    # User namespace will always default to the global setting
    Gitlab.config.lfs.enabled
  end

  def shared_runners_enabled?
    projects.with_shared_runners.any?
  end

  # Scopes the model on ancestors of the record
  def ancestors
    if parent_id
      path = route ? route.path : full_path
      paths = []

      until path.blank?
        path = path.rpartition('/').first
        paths << path
      end

      self.class.joins(:route).where('routes.path IN (?)', paths).reorder('routes.path ASC')
    else
      self.class.none
    end
  end

  # Scopes the model on direct and indirect children of the record
  def descendants
    self.class.joins(:route).where('routes.path LIKE ?', "#{route.path}/%").reorder('routes.path ASC')
  end

  def user_ids_for_project_authorizations
    [owner_id]
  end

  def parent_changed?
    parent_id_changed?
  end

  def prepare_for_destroy
    old_repository_storage_paths
  end

  def old_repository_storage_paths
    @old_repository_storage_paths ||= repository_storage_paths
  end

  private

  def repository_storage_paths
    # We need to get the storage paths for all the projects, even the ones that are
    # pending delete. Unscoping also get rids of the default order, which causes
    # problems with SELECT DISTINCT.
    Project.unscoped do
      projects.select('distinct(repository_storage)').to_a.map(&:repository_storage_path)
    end
  end

  def rm_dir
    # Remove the namespace directory in all storages paths used by member projects
    old_repository_storage_paths.each do |repository_storage_path|
      # Move namespace directory into trash.
      # We will remove it later async
      new_path = "#{path}+#{id}+deleted"

      if gitlab_shell.mv_namespace(repository_storage_path, path, new_path)
        message = "Namespace directory \"#{path}\" moved to \"#{new_path}\""
        Gitlab::AppLogger.info message

        # Remove namespace directroy async with delay so
        # GitLab has time to remove all projects first
        GitlabShellWorker.perform_in(5.minutes, :rm_namespace, repository_storage_path, new_path)
      end
    end

    remove_exports!
  end

  def refresh_access_of_projects_invited_groups
    Group.
      joins(project_group_links: :project).
      where(projects: { namespace_id: id }).
      find_each(&:refresh_members_authorized_projects)
  end

  def remove_exports!
    Gitlab::Popen.popen(%W(find #{export_path} -not -path #{export_path} -delete))
  end

  def export_path
    File.join(Gitlab::ImportExport.storage_path, full_path_was)
  end

  def full_path_was
    if parent
      parent.full_path + '/' + path_was
    else
      path_was
    end
  end

  def nesting_level_allowed
    if ancestors.count > Group::NUMBER_OF_ANCESTORS_ALLOWED
      errors.add(:parent_id, "has too deep level of nesting")
    end
  end
end